./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--xen-blkfront.ko.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 53f42b1a Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11755b65-4fcb-4242-84e9-23646d1007d8/bin/uautomizer-DQz5hQGWxF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11755b65-4fcb-4242-84e9-23646d1007d8/bin/uautomizer-DQz5hQGWxF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11755b65-4fcb-4242-84e9-23646d1007d8/bin/uautomizer-DQz5hQGWxF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11755b65-4fcb-4242-84e9-23646d1007d8/bin/uautomizer-DQz5hQGWxF/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11755b65-4fcb-4242-84e9-23646d1007d8/bin/uautomizer-DQz5hQGWxF/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11755b65-4fcb-4242-84e9-23646d1007d8/bin/uautomizer-DQz5hQGWxF --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 dedd6e816706b4c34868dad2bcfd19a22eb16a791a20ccdf71875d228cd47b87 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-20 05:39:35,578 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-20 05:39:35,580 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-20 05:39:35,627 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-20 05:39:35,627 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-20 05:39:35,629 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-20 05:39:35,631 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-20 05:39:35,633 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-20 05:39:35,635 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-20 05:39:35,636 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-20 05:39:35,638 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-20 05:39:35,639 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-20 05:39:35,640 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-20 05:39:35,641 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-20 05:39:35,643 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-20 05:39:35,645 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-20 05:39:35,646 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-20 05:39:35,647 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-20 05:39:35,649 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-20 05:39:35,652 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-20 05:39:35,654 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-20 05:39:35,662 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-20 05:39:35,664 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-20 05:39:35,665 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-20 05:39:35,669 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-20 05:39:35,676 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-20 05:39:35,677 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-20 05:39:35,678 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-20 05:39:35,678 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-20 05:39:35,679 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-20 05:39:35,681 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-20 05:39:35,683 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-20 05:39:35,684 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-20 05:39:35,685 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-20 05:39:35,687 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-20 05:39:35,688 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-20 05:39:35,689 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-20 05:39:35,689 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-20 05:39:35,689 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-20 05:39:35,691 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-20 05:39:35,692 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-20 05:39:35,693 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11755b65-4fcb-4242-84e9-23646d1007d8/bin/uautomizer-DQz5hQGWxF/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-20 05:39:35,715 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-20 05:39:35,716 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-20 05:39:35,716 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-20 05:39:35,716 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-20 05:39:35,717 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-20 05:39:35,717 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-20 05:39:35,718 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-20 05:39:35,718 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-20 05:39:35,719 INFO L138 SettingsManager]: * Use SBE=true [2021-11-20 05:39:35,719 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-20 05:39:35,719 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-20 05:39:35,719 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-20 05:39:35,720 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-20 05:39:35,720 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-20 05:39:35,720 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-20 05:39:35,720 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-20 05:39:35,721 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-20 05:39:35,721 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-20 05:39:35,721 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-20 05:39:35,721 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-20 05:39:35,721 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-20 05:39:35,722 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 05:39:35,722 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-20 05:39:35,722 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-20 05:39:35,722 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-20 05:39:35,723 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-20 05:39:35,723 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-20 05:39:35,723 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-20 05:39:35,723 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-20 05:39:35,724 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-20 05:39:35,724 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-20 05:39:35,724 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:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11755b65-4fcb-4242-84e9-23646d1007d8/bin/uautomizer-DQz5hQGWxF/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11755b65-4fcb-4242-84e9-23646d1007d8/bin/uautomizer-DQz5hQGWxF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dedd6e816706b4c34868dad2bcfd19a22eb16a791a20ccdf71875d228cd47b87 [2021-11-20 05:39:36,001 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-20 05:39:36,023 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-20 05:39:36,025 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-20 05:39:36,027 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-20 05:39:36,027 INFO L275 PluginConnector]: CDTParser initialized [2021-11-20 05:39:36,029 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11755b65-4fcb-4242-84e9-23646d1007d8/bin/uautomizer-DQz5hQGWxF/../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i [2021-11-20 05:39:36,099 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11755b65-4fcb-4242-84e9-23646d1007d8/bin/uautomizer-DQz5hQGWxF/data/cbb119957/c3297a2d8978408fad4dc083757dcec2/FLAGcc708d748 [2021-11-20 05:39:37,006 INFO L306 CDTParser]: Found 1 translation units. [2021-11-20 05:39:37,008 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11755b65-4fcb-4242-84e9-23646d1007d8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i [2021-11-20 05:39:37,069 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11755b65-4fcb-4242-84e9-23646d1007d8/bin/uautomizer-DQz5hQGWxF/data/cbb119957/c3297a2d8978408fad4dc083757dcec2/FLAGcc708d748 [2021-11-20 05:39:37,415 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11755b65-4fcb-4242-84e9-23646d1007d8/bin/uautomizer-DQz5hQGWxF/data/cbb119957/c3297a2d8978408fad4dc083757dcec2 [2021-11-20 05:39:37,418 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-20 05:39:37,419 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-20 05:39:37,423 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-20 05:39:37,423 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-20 05:39:37,426 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-20 05:39:37,427 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 05:39:37" (1/1) ... [2021-11-20 05:39:37,428 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@c6e7714 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:39:37, skipping insertion in model container [2021-11-20 05:39:37,428 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 05:39:37" (1/1) ... [2021-11-20 05:39:37,436 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-20 05:39:37,597 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-20 05:39:41,530 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11755b65-4fcb-4242-84e9-23646d1007d8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[373036,373049] [2021-11-20 05:39:41,533 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11755b65-4fcb-4242-84e9-23646d1007d8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[373181,373194] [2021-11-20 05:39:41,534 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11755b65-4fcb-4242-84e9-23646d1007d8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[373327,373340] [2021-11-20 05:39:41,535 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11755b65-4fcb-4242-84e9-23646d1007d8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[373492,373505] [2021-11-20 05:39:41,535 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11755b65-4fcb-4242-84e9-23646d1007d8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[373650,373663] [2021-11-20 05:39:41,536 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11755b65-4fcb-4242-84e9-23646d1007d8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[373808,373821] [2021-11-20 05:39:41,536 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11755b65-4fcb-4242-84e9-23646d1007d8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[373966,373979] [2021-11-20 05:39:41,537 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11755b65-4fcb-4242-84e9-23646d1007d8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[374126,374139] [2021-11-20 05:39:41,537 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11755b65-4fcb-4242-84e9-23646d1007d8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[374285,374298] [2021-11-20 05:39:41,538 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11755b65-4fcb-4242-84e9-23646d1007d8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[374424,374437] [2021-11-20 05:39:41,538 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11755b65-4fcb-4242-84e9-23646d1007d8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[374566,374579] [2021-11-20 05:39:41,539 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11755b65-4fcb-4242-84e9-23646d1007d8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[374715,374728] [2021-11-20 05:39:41,539 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11755b65-4fcb-4242-84e9-23646d1007d8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[374854,374867] [2021-11-20 05:39:41,540 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11755b65-4fcb-4242-84e9-23646d1007d8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[375009,375022] [2021-11-20 05:39:41,540 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11755b65-4fcb-4242-84e9-23646d1007d8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[375169,375182] [2021-11-20 05:39:41,541 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11755b65-4fcb-4242-84e9-23646d1007d8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[375320,375333] [2021-11-20 05:39:41,541 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11755b65-4fcb-4242-84e9-23646d1007d8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[375471,375484] [2021-11-20 05:39:41,542 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11755b65-4fcb-4242-84e9-23646d1007d8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[375623,375636] [2021-11-20 05:39:41,542 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11755b65-4fcb-4242-84e9-23646d1007d8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[375772,375785] [2021-11-20 05:39:41,543 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11755b65-4fcb-4242-84e9-23646d1007d8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[375920,375933] [2021-11-20 05:39:41,553 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11755b65-4fcb-4242-84e9-23646d1007d8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[376077,376090] [2021-11-20 05:39:41,554 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11755b65-4fcb-4242-84e9-23646d1007d8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[376226,376239] [2021-11-20 05:39:41,555 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11755b65-4fcb-4242-84e9-23646d1007d8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[376382,376395] [2021-11-20 05:39:41,557 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11755b65-4fcb-4242-84e9-23646d1007d8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[376535,376548] [2021-11-20 05:39:41,560 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11755b65-4fcb-4242-84e9-23646d1007d8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[376681,376694] [2021-11-20 05:39:41,561 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11755b65-4fcb-4242-84e9-23646d1007d8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[376824,376837] [2021-11-20 05:39:41,562 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11755b65-4fcb-4242-84e9-23646d1007d8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[376976,376989] [2021-11-20 05:39:41,562 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11755b65-4fcb-4242-84e9-23646d1007d8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[377122,377135] [2021-11-20 05:39:41,562 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11755b65-4fcb-4242-84e9-23646d1007d8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[377267,377280] [2021-11-20 05:39:41,565 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11755b65-4fcb-4242-84e9-23646d1007d8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[377421,377434] [2021-11-20 05:39:41,566 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11755b65-4fcb-4242-84e9-23646d1007d8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[377572,377585] [2021-11-20 05:39:41,566 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11755b65-4fcb-4242-84e9-23646d1007d8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[377727,377740] [2021-11-20 05:39:41,567 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11755b65-4fcb-4242-84e9-23646d1007d8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[377879,377892] [2021-11-20 05:39:41,569 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11755b65-4fcb-4242-84e9-23646d1007d8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[378034,378047] [2021-11-20 05:39:41,570 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11755b65-4fcb-4242-84e9-23646d1007d8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[378198,378211] [2021-11-20 05:39:41,570 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11755b65-4fcb-4242-84e9-23646d1007d8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[378354,378367] [2021-11-20 05:39:41,571 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11755b65-4fcb-4242-84e9-23646d1007d8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[378518,378531] [2021-11-20 05:39:41,573 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11755b65-4fcb-4242-84e9-23646d1007d8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[378660,378673] [2021-11-20 05:39:41,574 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11755b65-4fcb-4242-84e9-23646d1007d8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[378818,378831] [2021-11-20 05:39:41,574 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11755b65-4fcb-4242-84e9-23646d1007d8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[378985,378998] [2021-11-20 05:39:41,575 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11755b65-4fcb-4242-84e9-23646d1007d8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[379144,379157] [2021-11-20 05:39:41,575 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11755b65-4fcb-4242-84e9-23646d1007d8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[379303,379316] [2021-11-20 05:39:41,576 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11755b65-4fcb-4242-84e9-23646d1007d8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[379452,379465] [2021-11-20 05:39:41,576 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11755b65-4fcb-4242-84e9-23646d1007d8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[379599,379612] [2021-11-20 05:39:41,577 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11755b65-4fcb-4242-84e9-23646d1007d8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[379738,379751] [2021-11-20 05:39:41,578 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11755b65-4fcb-4242-84e9-23646d1007d8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[379901,379914] [2021-11-20 05:39:41,578 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11755b65-4fcb-4242-84e9-23646d1007d8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[380067,380080] [2021-11-20 05:39:41,579 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11755b65-4fcb-4242-84e9-23646d1007d8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[380231,380244] [2021-11-20 05:39:41,580 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11755b65-4fcb-4242-84e9-23646d1007d8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[380396,380409] [2021-11-20 05:39:41,581 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11755b65-4fcb-4242-84e9-23646d1007d8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[380561,380574] [2021-11-20 05:39:41,581 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11755b65-4fcb-4242-84e9-23646d1007d8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[380727,380740] [2021-11-20 05:39:41,582 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11755b65-4fcb-4242-84e9-23646d1007d8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[380892,380905] [2021-11-20 05:39:41,582 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11755b65-4fcb-4242-84e9-23646d1007d8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[381059,381072] [2021-11-20 05:39:41,582 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11755b65-4fcb-4242-84e9-23646d1007d8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[381219,381232] [2021-11-20 05:39:41,583 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11755b65-4fcb-4242-84e9-23646d1007d8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[381381,381394] [2021-11-20 05:39:41,583 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11755b65-4fcb-4242-84e9-23646d1007d8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[381540,381553] [2021-11-20 05:39:41,584 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11755b65-4fcb-4242-84e9-23646d1007d8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[381686,381699] [2021-11-20 05:39:41,584 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11755b65-4fcb-4242-84e9-23646d1007d8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[381829,381842] [2021-11-20 05:39:41,585 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11755b65-4fcb-4242-84e9-23646d1007d8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[381973,381986] [2021-11-20 05:39:41,585 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11755b65-4fcb-4242-84e9-23646d1007d8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[382116,382129] [2021-11-20 05:39:41,586 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11755b65-4fcb-4242-84e9-23646d1007d8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[382260,382273] [2021-11-20 05:39:41,586 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11755b65-4fcb-4242-84e9-23646d1007d8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[382401,382414] [2021-11-20 05:39:41,587 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11755b65-4fcb-4242-84e9-23646d1007d8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[382539,382552] [2021-11-20 05:39:41,588 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11755b65-4fcb-4242-84e9-23646d1007d8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[382697,382710] [2021-11-20 05:39:41,588 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11755b65-4fcb-4242-84e9-23646d1007d8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[382856,382869] [2021-11-20 05:39:41,589 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11755b65-4fcb-4242-84e9-23646d1007d8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[383012,383025] [2021-11-20 05:39:41,589 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11755b65-4fcb-4242-84e9-23646d1007d8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[383161,383174] [2021-11-20 05:39:41,589 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11755b65-4fcb-4242-84e9-23646d1007d8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[383313,383326] [2021-11-20 05:39:41,590 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11755b65-4fcb-4242-84e9-23646d1007d8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[383464,383477] [2021-11-20 05:39:41,590 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11755b65-4fcb-4242-84e9-23646d1007d8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[383613,383626] [2021-11-20 05:39:41,591 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11755b65-4fcb-4242-84e9-23646d1007d8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[383765,383778] [2021-11-20 05:39:41,591 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11755b65-4fcb-4242-84e9-23646d1007d8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[383913,383926] [2021-11-20 05:39:41,592 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11755b65-4fcb-4242-84e9-23646d1007d8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[384066,384079] [2021-11-20 05:39:41,592 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11755b65-4fcb-4242-84e9-23646d1007d8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[384217,384230] [2021-11-20 05:39:41,593 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11755b65-4fcb-4242-84e9-23646d1007d8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[384367,384380] [2021-11-20 05:39:41,593 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11755b65-4fcb-4242-84e9-23646d1007d8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[384514,384527] [2021-11-20 05:39:41,593 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11755b65-4fcb-4242-84e9-23646d1007d8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[384665,384678] [2021-11-20 05:39:41,594 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11755b65-4fcb-4242-84e9-23646d1007d8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[384816,384829] [2021-11-20 05:39:41,594 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11755b65-4fcb-4242-84e9-23646d1007d8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[384964,384977] [2021-11-20 05:39:41,595 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11755b65-4fcb-4242-84e9-23646d1007d8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[385130,385143] [2021-11-20 05:39:41,595 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11755b65-4fcb-4242-84e9-23646d1007d8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[385299,385312] [2021-11-20 05:39:41,596 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11755b65-4fcb-4242-84e9-23646d1007d8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[385466,385479] [2021-11-20 05:39:41,596 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11755b65-4fcb-4242-84e9-23646d1007d8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[385634,385647] [2021-11-20 05:39:41,597 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11755b65-4fcb-4242-84e9-23646d1007d8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[385784,385797] [2021-11-20 05:39:41,598 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11755b65-4fcb-4242-84e9-23646d1007d8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[385931,385944] [2021-11-20 05:39:41,598 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11755b65-4fcb-4242-84e9-23646d1007d8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[386092,386105] [2021-11-20 05:39:41,599 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11755b65-4fcb-4242-84e9-23646d1007d8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[386262,386275] [2021-11-20 05:39:41,599 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11755b65-4fcb-4242-84e9-23646d1007d8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[386424,386437] [2021-11-20 05:39:41,614 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 05:39:41,634 INFO L203 MainTranslator]: Completed pre-run [2021-11-20 05:39:42,033 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11755b65-4fcb-4242-84e9-23646d1007d8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[373036,373049] [2021-11-20 05:39:42,035 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11755b65-4fcb-4242-84e9-23646d1007d8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[373181,373194] [2021-11-20 05:39:42,039 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11755b65-4fcb-4242-84e9-23646d1007d8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[373327,373340] [2021-11-20 05:39:42,040 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11755b65-4fcb-4242-84e9-23646d1007d8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[373492,373505] [2021-11-20 05:39:42,041 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11755b65-4fcb-4242-84e9-23646d1007d8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[373650,373663] [2021-11-20 05:39:42,042 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11755b65-4fcb-4242-84e9-23646d1007d8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[373808,373821] [2021-11-20 05:39:42,042 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11755b65-4fcb-4242-84e9-23646d1007d8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[373966,373979] [2021-11-20 05:39:42,043 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11755b65-4fcb-4242-84e9-23646d1007d8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[374126,374139] [2021-11-20 05:39:42,044 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11755b65-4fcb-4242-84e9-23646d1007d8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[374285,374298] [2021-11-20 05:39:42,045 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11755b65-4fcb-4242-84e9-23646d1007d8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[374424,374437] [2021-11-20 05:39:42,045 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11755b65-4fcb-4242-84e9-23646d1007d8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[374566,374579] [2021-11-20 05:39:42,046 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11755b65-4fcb-4242-84e9-23646d1007d8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[374715,374728] [2021-11-20 05:39:42,046 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11755b65-4fcb-4242-84e9-23646d1007d8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[374854,374867] [2021-11-20 05:39:42,046 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11755b65-4fcb-4242-84e9-23646d1007d8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[375009,375022] [2021-11-20 05:39:42,047 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11755b65-4fcb-4242-84e9-23646d1007d8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[375169,375182] [2021-11-20 05:39:42,047 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11755b65-4fcb-4242-84e9-23646d1007d8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[375320,375333] [2021-11-20 05:39:42,048 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11755b65-4fcb-4242-84e9-23646d1007d8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[375471,375484] [2021-11-20 05:39:42,048 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11755b65-4fcb-4242-84e9-23646d1007d8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[375623,375636] [2021-11-20 05:39:42,048 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11755b65-4fcb-4242-84e9-23646d1007d8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[375772,375785] [2021-11-20 05:39:42,049 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11755b65-4fcb-4242-84e9-23646d1007d8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[375920,375933] [2021-11-20 05:39:42,050 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11755b65-4fcb-4242-84e9-23646d1007d8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[376077,376090] [2021-11-20 05:39:42,050 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11755b65-4fcb-4242-84e9-23646d1007d8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[376226,376239] [2021-11-20 05:39:42,051 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11755b65-4fcb-4242-84e9-23646d1007d8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[376382,376395] [2021-11-20 05:39:42,052 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11755b65-4fcb-4242-84e9-23646d1007d8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[376535,376548] [2021-11-20 05:39:42,052 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11755b65-4fcb-4242-84e9-23646d1007d8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[376681,376694] [2021-11-20 05:39:42,053 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11755b65-4fcb-4242-84e9-23646d1007d8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[376824,376837] [2021-11-20 05:39:42,053 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11755b65-4fcb-4242-84e9-23646d1007d8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[376976,376989] [2021-11-20 05:39:42,053 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11755b65-4fcb-4242-84e9-23646d1007d8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[377122,377135] [2021-11-20 05:39:42,054 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11755b65-4fcb-4242-84e9-23646d1007d8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[377267,377280] [2021-11-20 05:39:42,054 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11755b65-4fcb-4242-84e9-23646d1007d8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[377421,377434] [2021-11-20 05:39:42,055 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11755b65-4fcb-4242-84e9-23646d1007d8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[377572,377585] [2021-11-20 05:39:42,055 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11755b65-4fcb-4242-84e9-23646d1007d8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[377727,377740] [2021-11-20 05:39:42,055 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11755b65-4fcb-4242-84e9-23646d1007d8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[377879,377892] [2021-11-20 05:39:42,056 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11755b65-4fcb-4242-84e9-23646d1007d8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[378034,378047] [2021-11-20 05:39:42,057 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11755b65-4fcb-4242-84e9-23646d1007d8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[378198,378211] [2021-11-20 05:39:42,057 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11755b65-4fcb-4242-84e9-23646d1007d8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[378354,378367] [2021-11-20 05:39:42,057 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11755b65-4fcb-4242-84e9-23646d1007d8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[378518,378531] [2021-11-20 05:39:42,058 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11755b65-4fcb-4242-84e9-23646d1007d8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[378660,378673] [2021-11-20 05:39:42,058 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11755b65-4fcb-4242-84e9-23646d1007d8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[378818,378831] [2021-11-20 05:39:42,059 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11755b65-4fcb-4242-84e9-23646d1007d8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[378985,378998] [2021-11-20 05:39:42,060 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11755b65-4fcb-4242-84e9-23646d1007d8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[379144,379157] [2021-11-20 05:39:42,061 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11755b65-4fcb-4242-84e9-23646d1007d8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[379303,379316] [2021-11-20 05:39:42,061 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11755b65-4fcb-4242-84e9-23646d1007d8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[379452,379465] [2021-11-20 05:39:42,062 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11755b65-4fcb-4242-84e9-23646d1007d8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[379599,379612] [2021-11-20 05:39:42,062 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11755b65-4fcb-4242-84e9-23646d1007d8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[379738,379751] [2021-11-20 05:39:42,063 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11755b65-4fcb-4242-84e9-23646d1007d8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[379901,379914] [2021-11-20 05:39:42,063 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11755b65-4fcb-4242-84e9-23646d1007d8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[380067,380080] [2021-11-20 05:39:42,064 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11755b65-4fcb-4242-84e9-23646d1007d8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[380231,380244] [2021-11-20 05:39:42,065 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11755b65-4fcb-4242-84e9-23646d1007d8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[380396,380409] [2021-11-20 05:39:42,065 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11755b65-4fcb-4242-84e9-23646d1007d8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[380561,380574] [2021-11-20 05:39:42,065 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11755b65-4fcb-4242-84e9-23646d1007d8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[380727,380740] [2021-11-20 05:39:42,066 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11755b65-4fcb-4242-84e9-23646d1007d8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[380892,380905] [2021-11-20 05:39:42,066 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11755b65-4fcb-4242-84e9-23646d1007d8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[381059,381072] [2021-11-20 05:39:42,067 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11755b65-4fcb-4242-84e9-23646d1007d8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[381219,381232] [2021-11-20 05:39:42,068 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11755b65-4fcb-4242-84e9-23646d1007d8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[381381,381394] [2021-11-20 05:39:42,068 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11755b65-4fcb-4242-84e9-23646d1007d8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[381540,381553] [2021-11-20 05:39:42,068 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11755b65-4fcb-4242-84e9-23646d1007d8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[381686,381699] [2021-11-20 05:39:42,069 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11755b65-4fcb-4242-84e9-23646d1007d8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[381829,381842] [2021-11-20 05:39:42,069 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11755b65-4fcb-4242-84e9-23646d1007d8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[381973,381986] [2021-11-20 05:39:42,069 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11755b65-4fcb-4242-84e9-23646d1007d8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[382116,382129] [2021-11-20 05:39:42,070 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11755b65-4fcb-4242-84e9-23646d1007d8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[382260,382273] [2021-11-20 05:39:42,071 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11755b65-4fcb-4242-84e9-23646d1007d8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[382401,382414] [2021-11-20 05:39:42,072 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11755b65-4fcb-4242-84e9-23646d1007d8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[382539,382552] [2021-11-20 05:39:42,075 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11755b65-4fcb-4242-84e9-23646d1007d8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[382697,382710] [2021-11-20 05:39:42,076 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11755b65-4fcb-4242-84e9-23646d1007d8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[382856,382869] [2021-11-20 05:39:42,082 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11755b65-4fcb-4242-84e9-23646d1007d8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[383012,383025] [2021-11-20 05:39:42,083 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11755b65-4fcb-4242-84e9-23646d1007d8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[383161,383174] [2021-11-20 05:39:42,084 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11755b65-4fcb-4242-84e9-23646d1007d8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[383313,383326] [2021-11-20 05:39:42,085 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11755b65-4fcb-4242-84e9-23646d1007d8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[383464,383477] [2021-11-20 05:39:42,085 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11755b65-4fcb-4242-84e9-23646d1007d8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[383613,383626] [2021-11-20 05:39:42,085 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11755b65-4fcb-4242-84e9-23646d1007d8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[383765,383778] [2021-11-20 05:39:42,086 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11755b65-4fcb-4242-84e9-23646d1007d8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[383913,383926] [2021-11-20 05:39:42,091 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11755b65-4fcb-4242-84e9-23646d1007d8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[384066,384079] [2021-11-20 05:39:42,091 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11755b65-4fcb-4242-84e9-23646d1007d8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[384217,384230] [2021-11-20 05:39:42,092 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11755b65-4fcb-4242-84e9-23646d1007d8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[384367,384380] [2021-11-20 05:39:42,093 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11755b65-4fcb-4242-84e9-23646d1007d8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[384514,384527] [2021-11-20 05:39:42,093 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11755b65-4fcb-4242-84e9-23646d1007d8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[384665,384678] [2021-11-20 05:39:42,094 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11755b65-4fcb-4242-84e9-23646d1007d8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[384816,384829] [2021-11-20 05:39:42,095 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11755b65-4fcb-4242-84e9-23646d1007d8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[384964,384977] [2021-11-20 05:39:42,096 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11755b65-4fcb-4242-84e9-23646d1007d8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[385130,385143] [2021-11-20 05:39:42,096 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11755b65-4fcb-4242-84e9-23646d1007d8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[385299,385312] [2021-11-20 05:39:42,097 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11755b65-4fcb-4242-84e9-23646d1007d8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[385466,385479] [2021-11-20 05:39:42,098 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11755b65-4fcb-4242-84e9-23646d1007d8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[385634,385647] [2021-11-20 05:39:42,098 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11755b65-4fcb-4242-84e9-23646d1007d8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[385784,385797] [2021-11-20 05:39:42,098 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11755b65-4fcb-4242-84e9-23646d1007d8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[385931,385944] [2021-11-20 05:39:42,099 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11755b65-4fcb-4242-84e9-23646d1007d8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[386092,386105] [2021-11-20 05:39:42,099 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11755b65-4fcb-4242-84e9-23646d1007d8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[386262,386275] [2021-11-20 05:39:42,099 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11755b65-4fcb-4242-84e9-23646d1007d8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[386424,386437] [2021-11-20 05:39:42,153 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 05:39:42,329 INFO L208 MainTranslator]: Completed translation [2021-11-20 05:39:42,330 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:39:42 WrapperNode [2021-11-20 05:39:42,330 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-20 05:39:42,332 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-20 05:39:42,332 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-20 05:39:42,332 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-20 05:39:42,342 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:39:42" (1/1) ... [2021-11-20 05:39:42,506 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:39:42" (1/1) ... [2021-11-20 05:39:42,756 INFO L137 Inliner]: procedures = 675, calls = 2831, calls flagged for inlining = 316, calls inlined = 216, statements flattened = 5804 [2021-11-20 05:39:42,757 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-20 05:39:42,758 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-20 05:39:42,758 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-20 05:39:42,758 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-20 05:39:42,767 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:39:42" (1/1) ... [2021-11-20 05:39:42,767 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:39:42" (1/1) ... [2021-11-20 05:39:42,803 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:39:42" (1/1) ... [2021-11-20 05:39:42,804 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:39:42" (1/1) ... [2021-11-20 05:39:42,958 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:39:42" (1/1) ... [2021-11-20 05:39:42,993 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:39:42" (1/1) ... [2021-11-20 05:39:43,026 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:39:42" (1/1) ... [2021-11-20 05:39:43,054 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-20 05:39:43,055 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-20 05:39:43,056 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-20 05:39:43,056 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-20 05:39:43,057 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:39:42" (1/1) ... [2021-11-20 05:39:43,065 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 05:39:43,136 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11755b65-4fcb-4242-84e9-23646d1007d8/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:39:43,161 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11755b65-4fcb-4242-84e9-23646d1007d8/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-20 05:39:43,193 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11755b65-4fcb-4242-84e9-23646d1007d8/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-20 05:39:43,214 INFO L130 BoogieDeclarations]: Found specification of procedure xenbus_frontend_closed [2021-11-20 05:39:43,214 INFO L138 BoogieDeclarations]: Found implementation of procedure xenbus_frontend_closed [2021-11-20 05:39:43,215 INFO L130 BoogieDeclarations]: Found specification of procedure strncmp [2021-11-20 05:39:43,215 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_coherent_check_final_state [2021-11-20 05:39:43,215 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_coherent_check_final_state [2021-11-20 05:39:43,215 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-20 05:39:43,215 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-20 05:39:43,215 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-20 05:39:43,215 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-20 05:39:43,216 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_mmc_sdio_func_check_final_state [2021-11-20 05:39:43,216 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_mmc_sdio_func_check_final_state [2021-11-20 05:39:43,216 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_genhd_del_gendisk [2021-11-20 05:39:43,216 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_genhd_del_gendisk [2021-11-20 05:39:43,217 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-11-20 05:39:43,217 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-11-20 05:39:43,217 INFO L130 BoogieDeclarations]: Found specification of procedure submit_bio [2021-11-20 05:39:43,217 INFO L138 BoogieDeclarations]: Found implementation of procedure submit_bio [2021-11-20 05:39:43,217 INFO L130 BoogieDeclarations]: Found specification of procedure queue_flag_set_unlocked [2021-11-20 05:39:43,219 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_flag_set_unlocked [2021-11-20 05:39:43,219 INFO L130 BoogieDeclarations]: Found specification of procedure gnttab_cancel_free_callback [2021-11-20 05:39:43,219 INFO L138 BoogieDeclarations]: Found implementation of procedure gnttab_cancel_free_callback [2021-11-20 05:39:43,219 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_arch_io_check_final_state [2021-11-20 05:39:43,220 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_arch_io_check_final_state [2021-11-20 05:39:43,220 INFO L130 BoogieDeclarations]: Found specification of procedure gnttab_end_foreign_access [2021-11-20 05:39:43,220 INFO L138 BoogieDeclarations]: Found implementation of procedure gnttab_end_foreign_access [2021-11-20 05:39:43,220 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_module_check_final_state [2021-11-20 05:39:43,220 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_module_check_final_state [2021-11-20 05:39:43,220 INFO L130 BoogieDeclarations]: Found specification of procedure do_blkif_request [2021-11-20 05:39:43,220 INFO L138 BoogieDeclarations]: Found implementation of procedure do_blkif_request [2021-11-20 05:39:43,221 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_pages [2021-11-20 05:39:43,221 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_pages [2021-11-20 05:39:43,221 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-11-20 05:39:43,221 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-11-20 05:39:43,221 INFO L130 BoogieDeclarations]: Found specification of procedure talk_to_blkback [2021-11-20 05:39:43,221 INFO L138 BoogieDeclarations]: Found implementation of procedure talk_to_blkback [2021-11-20 05:39:43,221 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-20 05:39:43,222 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-20 05:39:43,222 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_queue_check_final_state [2021-11-20 05:39:43,222 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_queue_check_final_state [2021-11-20 05:39:43,222 INFO L130 BoogieDeclarations]: Found specification of procedure blkfront_setup_indirect [2021-11-20 05:39:43,222 INFO L138 BoogieDeclarations]: Found implementation of procedure blkfront_setup_indirect [2021-11-20 05:39:43,222 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-20 05:39:43,222 INFO L130 BoogieDeclarations]: Found specification of procedure pfn_to_mfn [2021-11-20 05:39:43,223 INFO L138 BoogieDeclarations]: Found implementation of procedure pfn_to_mfn [2021-11-20 05:39:43,223 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2021-11-20 05:39:43,223 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2021-11-20 05:39:43,223 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_request_check_final_state [2021-11-20 05:39:43,223 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_request_check_final_state [2021-11-20 05:39:43,223 INFO L130 BoogieDeclarations]: Found specification of procedure xlvbd_release_gendisk [2021-11-20 05:39:43,223 INFO L138 BoogieDeclarations]: Found implementation of procedure xlvbd_release_gendisk [2021-11-20 05:39:43,224 INFO L130 BoogieDeclarations]: Found specification of procedure xlbd_release_minors [2021-11-20 05:39:43,224 INFO L138 BoogieDeclarations]: Found implementation of procedure xlbd_release_minors [2021-11-20 05:39:43,224 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-20 05:39:43,224 INFO L130 BoogieDeclarations]: Found specification of procedure xlvbd_flush [2021-11-20 05:39:43,224 INFO L138 BoogieDeclarations]: Found implementation of procedure xlvbd_flush [2021-11-20 05:39:43,224 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2021-11-20 05:39:43,224 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2021-11-20 05:39:43,225 INFO L130 BoogieDeclarations]: Found specification of procedure sg_page [2021-11-20 05:39:43,225 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_page [2021-11-20 05:39:43,225 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-20 05:39:43,225 INFO L130 BoogieDeclarations]: Found specification of procedure xenbus_switch_state [2021-11-20 05:39:43,225 INFO L138 BoogieDeclarations]: Found implementation of procedure xenbus_switch_state [2021-11-20 05:39:43,225 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_in_interrupt_context [2021-11-20 05:39:43,225 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_in_interrupt_context [2021-11-20 05:39:43,226 INFO L130 BoogieDeclarations]: Found specification of procedure flush_work [2021-11-20 05:39:43,226 INFO L138 BoogieDeclarations]: Found implementation of procedure flush_work [2021-11-20 05:39:43,226 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-11-20 05:39:43,226 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-11-20 05:39:43,226 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irq_112 [2021-11-20 05:39:43,226 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irq_112 [2021-11-20 05:39:43,226 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_bh_check_final_state [2021-11-20 05:39:43,228 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_bh_check_final_state [2021-11-20 05:39:43,231 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-20 05:39:43,231 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_genhd_check_final_state [2021-11-20 05:39:43,232 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_genhd_check_final_state [2021-11-20 05:39:43,232 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_after_alloc [2021-11-20 05:39:43,232 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_after_alloc [2021-11-20 05:39:43,232 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-20 05:39:43,232 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-20 05:39:43,232 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_register_reset_error_counter [2021-11-20 05:39:43,232 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_register_reset_error_counter [2021-11-20 05:39:43,233 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-11-20 05:39:43,234 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-11-20 05:39:43,234 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2021-11-20 05:39:43,235 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2021-11-20 05:39:43,235 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_blkdev [2021-11-20 05:39:43,235 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_blkdev [2021-11-20 05:39:43,235 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_lib_idr_check_final_state [2021-11-20 05:39:43,235 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_lib_idr_check_final_state [2021-11-20 05:39:43,235 INFO L130 BoogieDeclarations]: Found specification of procedure get_grant [2021-11-20 05:39:43,235 INFO L138 BoogieDeclarations]: Found implementation of procedure get_grant [2021-11-20 05:39:43,236 INFO L130 BoogieDeclarations]: Found specification of procedure sg_next [2021-11-20 05:39:43,236 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_next [2021-11-20 05:39:43,236 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_srcu_check_final_state [2021-11-20 05:39:43,236 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_srcu_check_final_state [2021-11-20 05:39:43,236 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-20 05:39:43,236 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_calloc [2021-11-20 05:39:43,236 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_calloc [2021-11-20 05:39:43,236 INFO L130 BoogieDeclarations]: Found specification of procedure get_phys_to_machine [2021-11-20 05:39:43,237 INFO L138 BoogieDeclarations]: Found implementation of procedure get_phys_to_machine [2021-11-20 05:39:43,237 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2021-11-20 05:39:43,237 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2021-11-20 05:39:43,237 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-20 05:39:43,237 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_lock_bd_mutex_of_block_device [2021-11-20 05:39:43,237 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_lock_bd_mutex_of_block_device [2021-11-20 05:39:43,237 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-11-20 05:39:43,238 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-11-20 05:39:43,238 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-20 05:39:43,238 INFO L130 BoogieDeclarations]: Found specification of procedure __blk_end_request_all [2021-11-20 05:39:43,238 INFO L138 BoogieDeclarations]: Found implementation of procedure __blk_end_request_all [2021-11-20 05:39:43,238 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-20 05:39:43,238 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2021-11-20 05:39:43,238 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2021-11-20 05:39:43,239 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_spinlock_spin_unlock_io_lock_of_blkfront_info [2021-11-20 05:39:43,239 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_spinlock_spin_unlock_io_lock_of_blkfront_info [2021-11-20 05:39:43,239 INFO L130 BoogieDeclarations]: Found specification of procedure kmap_atomic [2021-11-20 05:39:43,239 INFO L138 BoogieDeclarations]: Found implementation of procedure kmap_atomic [2021-11-20 05:39:43,239 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_unlock_blkfront_mutex [2021-11-20 05:39:43,239 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_unlock_blkfront_mutex [2021-11-20 05:39:43,239 INFO L130 BoogieDeclarations]: Found specification of procedure blkif_free [2021-11-20 05:39:43,240 INFO L138 BoogieDeclarations]: Found implementation of procedure blkif_free [2021-11-20 05:39:43,240 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_register_reset_error_counter [2021-11-20 05:39:43,240 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_register_reset_error_counter [2021-11-20 05:39:43,241 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2021-11-20 05:39:43,241 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2021-11-20 05:39:43,241 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-20 05:39:43,241 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-20 05:39:43,241 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_lock_mutex_of_blkfront_info [2021-11-20 05:39:43,241 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_lock_mutex_of_blkfront_info [2021-11-20 05:39:43,241 INFO L130 BoogieDeclarations]: Found specification of procedure blk_stop_queue [2021-11-20 05:39:43,241 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_stop_queue [2021-11-20 05:39:43,242 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_unlock_mutex_of_blkfront_info [2021-11-20 05:39:43,242 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_unlock_mutex_of_blkfront_info [2021-11-20 05:39:43,242 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-20 05:39:43,242 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-20 05:39:43,242 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-20 05:39:43,242 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-20 05:39:43,242 INFO L130 BoogieDeclarations]: Found specification of procedure bdput [2021-11-20 05:39:43,243 INFO L138 BoogieDeclarations]: Found implementation of procedure bdput [2021-11-20 05:39:43,243 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-11-20 05:39:43,243 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-11-20 05:39:43,243 INFO L130 BoogieDeclarations]: Found specification of procedure del_gendisk [2021-11-20 05:39:43,243 INFO L138 BoogieDeclarations]: Found implementation of procedure del_gendisk [2021-11-20 05:39:43,243 INFO L130 BoogieDeclarations]: Found specification of procedure xenbus_transaction_end [2021-11-20 05:39:43,243 INFO L138 BoogieDeclarations]: Found implementation of procedure xenbus_transaction_end [2021-11-20 05:39:43,243 INFO L130 BoogieDeclarations]: Found specification of procedure set_capacity [2021-11-20 05:39:43,244 INFO L138 BoogieDeclarations]: Found implementation of procedure set_capacity [2021-11-20 05:39:43,244 INFO L130 BoogieDeclarations]: Found specification of procedure blk_rq_sectors [2021-11-20 05:39:43,244 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_rq_sectors [2021-11-20 05:39:43,244 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-20 05:39:43,244 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-20 05:39:43,245 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_sock_check_final_state [2021-11-20 05:39:43,245 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_sock_check_final_state [2021-11-20 05:39:43,245 INFO L130 BoogieDeclarations]: Found specification of procedure blk_rq_pos [2021-11-20 05:39:43,245 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_rq_pos [2021-11-20 05:39:43,245 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_gadget_check_final_state [2021-11-20 05:39:43,245 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_gadget_check_final_state [2021-11-20 05:39:43,245 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-20 05:39:43,246 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-11-20 05:39:43,246 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-11-20 05:39:43,246 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_fs_sysfs_check_final_state [2021-11-20 05:39:43,246 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_fs_sysfs_check_final_state [2021-11-20 05:39:43,246 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-20 05:39:43,246 INFO L130 BoogieDeclarations]: Found specification of procedure __free_pages [2021-11-20 05:39:43,246 INFO L138 BoogieDeclarations]: Found implementation of procedure __free_pages [2021-11-20 05:39:43,246 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_107 [2021-11-20 05:39:43,247 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_107 [2021-11-20 05:39:43,247 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2021-11-20 05:39:43,247 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2021-11-20 05:39:43,247 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-20 05:39:43,247 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_unlock_bd_mutex_of_block_device [2021-11-20 05:39:43,247 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_unlock_bd_mutex_of_block_device [2021-11-20 05:39:43,247 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2021-11-20 05:39:43,248 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2021-11-20 05:39:43,248 INFO L130 BoogieDeclarations]: Found specification of procedure get_capacity [2021-11-20 05:39:43,248 INFO L138 BoogieDeclarations]: Found implementation of procedure get_capacity [2021-11-20 05:39:43,248 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_rtnetlink_check_final_state [2021-11-20 05:39:43,248 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_rtnetlink_check_final_state [2021-11-20 05:39:43,248 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_lock_blkfront_mutex [2021-11-20 05:39:43,248 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_lock_blkfront_mutex [2021-11-20 05:39:43,248 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-11-20 05:39:43,249 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-11-20 05:39:43,249 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-11-20 05:39:43,249 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-11-20 05:39:43,249 INFO L130 BoogieDeclarations]: Found specification of procedure blk_requeue_request [2021-11-20 05:39:43,249 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_requeue_request [2021-11-20 05:39:43,249 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2021-11-20 05:39:43,249 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2021-11-20 05:39:43,250 INFO L130 BoogieDeclarations]: Found specification of procedure bio_segments [2021-11-20 05:39:43,250 INFO L138 BoogieDeclarations]: Found implementation of procedure bio_segments [2021-11-20 05:39:43,250 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_check_final_state [2021-11-20 05:39:43,250 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_check_final_state [2021-11-20 05:39:43,250 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2021-11-20 05:39:43,250 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2021-11-20 05:39:43,250 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_urb_check_final_state [2021-11-20 05:39:43,250 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_urb_check_final_state [2021-11-20 05:39:43,251 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_linux_kernel_locking_spinlock_spin_lock [2021-11-20 05:39:43,251 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_linux_kernel_locking_spinlock_spin_lock [2021-11-20 05:39:43,251 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_spinlock_spin_lock_io_lock_of_blkfront_info [2021-11-20 05:39:43,251 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_spinlock_spin_lock_io_lock_of_blkfront_info [2021-11-20 05:39:43,251 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_rwlock_check_final_state [2021-11-20 05:39:43,251 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_rwlock_check_final_state [2021-11-20 05:39:43,251 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-11-20 05:39:43,252 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-11-20 05:39:43,252 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2021-11-20 05:39:43,252 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2021-11-20 05:39:43,252 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-20 05:39:43,252 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_fs_char_dev_check_final_state [2021-11-20 05:39:43,252 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_fs_char_dev_check_final_state [2021-11-20 05:39:43,253 INFO L130 BoogieDeclarations]: Found specification of procedure kick_pending_request_queues [2021-11-20 05:39:43,253 INFO L138 BoogieDeclarations]: Found implementation of procedure kick_pending_request_queues [2021-11-20 05:39:43,254 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-20 05:39:43,254 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-20 05:39:43,254 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_96 [2021-11-20 05:39:43,254 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_96 [2021-11-20 05:39:43,254 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_drivers_base_class_check_final_state [2021-11-20 05:39:43,254 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_drivers_base_class_check_final_state [2021-11-20 05:39:43,254 INFO L130 BoogieDeclarations]: Found specification of procedure strrchr [2021-11-20 05:39:43,254 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_97 [2021-11-20 05:39:43,255 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_97 [2021-11-20 05:39:43,255 INFO L130 BoogieDeclarations]: Found specification of procedure bdget_disk [2021-11-20 05:39:43,255 INFO L138 BoogieDeclarations]: Found implementation of procedure bdget_disk [2021-11-20 05:39:43,255 INFO L130 BoogieDeclarations]: Found specification of procedure bio_list_merge [2021-11-20 05:39:43,255 INFO L138 BoogieDeclarations]: Found implementation of procedure bio_list_merge [2021-11-20 05:39:43,255 INFO L130 BoogieDeclarations]: Found specification of procedure blk_queue_max_segments [2021-11-20 05:39:43,255 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_queue_max_segments [2021-11-20 05:39:43,255 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-11-20 05:39:43,256 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-11-20 05:39:43,256 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_sched_check_final_state [2021-11-20 05:39:43,256 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_sched_check_final_state [2021-11-20 05:39:43,256 INFO L130 BoogieDeclarations]: Found specification of procedure encode_disk_name [2021-11-20 05:39:43,256 INFO L138 BoogieDeclarations]: Found implementation of procedure encode_disk_name [2021-11-20 05:39:43,256 INFO L130 BoogieDeclarations]: Found specification of procedure __kunmap_atomic [2021-11-20 05:39:43,256 INFO L138 BoogieDeclarations]: Found implementation of procedure __kunmap_atomic [2021-11-20 05:39:43,256 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-20 05:39:43,257 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_irq_111 [2021-11-20 05:39:43,257 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_irq_111 [2021-11-20 05:39:44,030 INFO L236 CfgBuilder]: Building ICFG [2021-11-20 05:39:44,037 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-20 05:39:44,481 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-20 05:40:01,846 INFO L277 CfgBuilder]: Performing block encoding [2021-11-20 05:40:01,883 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-20 05:40:01,885 INFO L301 CfgBuilder]: Removed 4 assume(true) statements. [2021-11-20 05:40:01,890 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:40:01 BoogieIcfgContainer [2021-11-20 05:40:01,890 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-20 05:40:01,894 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-20 05:40:01,894 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-20 05:40:01,898 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-20 05:40:01,899 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 05:39:37" (1/3) ... [2021-11-20 05:40:01,900 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e3b58a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 05:40:01, skipping insertion in model container [2021-11-20 05:40:01,900 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:39:42" (2/3) ... [2021-11-20 05:40:01,900 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e3b58a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 05:40:01, skipping insertion in model container [2021-11-20 05:40:01,901 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:40:01" (3/3) ... [2021-11-20 05:40:01,904 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i [2021-11-20 05:40:01,909 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-20 05:40:01,910 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 34 error locations. [2021-11-20 05:40:01,987 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-20 05:40:02,002 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-20 05:40:02,006 INFO L340 AbstractCegarLoop]: Starting to check reachability of 34 error locations. [2021-11-20 05:40:02,073 INFO L276 IsEmpty]: Start isEmpty. Operand has 1748 states, 1231 states have (on average 1.3249390739236393) internal successors, (1631), 1291 states have internal predecessors, (1631), 374 states have call successors, (374), 109 states have call predecessors, (374), 108 states have return successors, (370), 368 states have call predecessors, (370), 370 states have call successors, (370) [2021-11-20 05:40:02,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-11-20 05:40:02,081 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:40:02,082 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] [2021-11-20 05:40:02,082 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_linux_arch_io_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2021-11-20 05:40:02,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:40:02,088 INFO L85 PathProgramCache]: Analyzing trace with hash 978063183, now seen corresponding path program 1 times [2021-11-20 05:40:02,100 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:40:02,101 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1440845157] [2021-11-20 05:40:02,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:40:02,102 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:40:02,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:40:02,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-20 05:40:02,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:40:02,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-11-20 05:40:02,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:40:02,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-11-20 05:40:02,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:40:02,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-11-20 05:40:02,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:40:02,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:40:02,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:40:02,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-20 05:40:02,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:40:02,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-11-20 05:40:02,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:40:02,986 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-20 05:40:02,987 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:40:02,987 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1440845157] [2021-11-20 05:40:02,988 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1440845157] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:40:02,988 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:40:02,988 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-20 05:40:02,990 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [438852867] [2021-11-20 05:40:02,990 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:40:02,995 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-20 05:40:02,995 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:40:03,029 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-20 05:40:03,030 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-20 05:40:03,036 INFO L87 Difference]: Start difference. First operand has 1748 states, 1231 states have (on average 1.3249390739236393) internal successors, (1631), 1291 states have internal predecessors, (1631), 374 states have call successors, (374), 109 states have call predecessors, (374), 108 states have return successors, (370), 368 states have call predecessors, (370), 370 states have call successors, (370) 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) [2021-11-20 05:40:07,283 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-20 05:40:12,474 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:40:13,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:40:13,813 INFO L93 Difference]: Finished difference Result 3440 states and 4793 transitions. [2021-11-20 05:40:13,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-20 05:40:13,815 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 [2021-11-20 05:40:13,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:40:13,843 INFO L225 Difference]: With dead ends: 3440 [2021-11-20 05:40:13,844 INFO L226 Difference]: Without dead ends: 1712 [2021-11-20 05:40:13,865 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2021-11-20 05:40:13,868 INFO L933 BasicCegarLoop]: 2105 mSDtfsCounter, 3543 mSDsluCounter, 2426 mSDsCounter, 0 mSdLazyCounter, 1651 mSolverCounterSat, 1398 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3744 SdHoareTripleChecker+Valid, 4531 SdHoareTripleChecker+Invalid, 3051 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1398 IncrementalHoareTripleChecker+Valid, 1651 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.2s IncrementalHoareTripleChecker+Time [2021-11-20 05:40:13,869 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3744 Valid, 4531 Invalid, 3051 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1398 Valid, 1651 Invalid, 2 Unknown, 0 Unchecked, 10.2s Time] [2021-11-20 05:40:13,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1712 states. [2021-11-20 05:40:14,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1712 to 1712. [2021-11-20 05:40:14,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1712 states, 1202 states have (on average 1.2612312811980033) internal successors, (1516), 1258 states have internal predecessors, (1516), 370 states have call successors, (370), 108 states have call predecessors, (370), 107 states have return successors, (368), 366 states have call predecessors, (368), 368 states have call successors, (368) [2021-11-20 05:40:14,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1712 states to 1712 states and 2254 transitions. [2021-11-20 05:40:14,079 INFO L78 Accepts]: Start accepts. Automaton has 1712 states and 2254 transitions. Word has length 50 [2021-11-20 05:40:14,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:40:14,082 INFO L470 AbstractCegarLoop]: Abstraction has 1712 states and 2254 transitions. [2021-11-20 05:40:14,082 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) [2021-11-20 05:40:14,082 INFO L276 IsEmpty]: Start isEmpty. Operand 1712 states and 2254 transitions. [2021-11-20 05:40:14,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-11-20 05:40:14,094 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:40:14,095 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] [2021-11-20 05:40:14,095 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-20 05:40:14,095 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_linux_block_genhd_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2021-11-20 05:40:14,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:40:14,096 INFO L85 PathProgramCache]: Analyzing trace with hash -1447234358, now seen corresponding path program 1 times [2021-11-20 05:40:14,096 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:40:14,096 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [449269202] [2021-11-20 05:40:14,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:40:14,097 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:40:14,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:40:14,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-20 05:40:14,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:40:14,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-11-20 05:40:14,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:40:14,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-11-20 05:40:14,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:40:14,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-11-20 05:40:14,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:40:14,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:40:14,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:40:14,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-20 05:40:14,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:40:14,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-11-20 05:40:14,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:40:14,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-11-20 05:40:14,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:40:14,537 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-20 05:40:14,537 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:40:14,538 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [449269202] [2021-11-20 05:40:14,538 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [449269202] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:40:14,538 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:40:14,538 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-20 05:40:14,538 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [921326323] [2021-11-20 05:40:14,539 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:40:14,540 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-20 05:40:14,540 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:40:14,541 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-20 05:40:14,541 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-20 05:40:14,541 INFO L87 Difference]: Start difference. First operand 1712 states and 2254 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) [2021-11-20 05:40:18,356 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-20 05:40:21,022 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-20 05:40:27,569 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:40:33,588 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:40:35,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:40:35,478 INFO L93 Difference]: Finished difference Result 3371 states and 4447 transitions. [2021-11-20 05:40:35,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-20 05:40:35,479 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 [2021-11-20 05:40:35,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:40:35,512 INFO L225 Difference]: With dead ends: 3371 [2021-11-20 05:40:35,512 INFO L226 Difference]: Without dead ends: 3369 [2021-11-20 05:40:35,515 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2021-11-20 05:40:35,516 INFO L933 BasicCegarLoop]: 2324 mSDtfsCounter, 5227 mSDsluCounter, 3803 mSDsCounter, 0 mSdLazyCounter, 3456 mSolverCounterSat, 2419 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5419 SdHoareTripleChecker+Valid, 6127 SdHoareTripleChecker+Invalid, 5879 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2419 IncrementalHoareTripleChecker+Valid, 3456 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.3s IncrementalHoareTripleChecker+Time [2021-11-20 05:40:35,520 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5419 Valid, 6127 Invalid, 5879 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2419 Valid, 3456 Invalid, 4 Unknown, 0 Unchecked, 20.3s Time] [2021-11-20 05:40:35,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3369 states. [2021-11-20 05:40:35,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3369 to 3175. [2021-11-20 05:40:35,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3175 states, 2256 states have (on average 1.2650709219858156) internal successors, (2854), 2338 states have internal predecessors, (2854), 691 states have call successors, (691), 196 states have call predecessors, (691), 195 states have return successors, (697), 681 states have call predecessors, (697), 689 states have call successors, (697) [2021-11-20 05:40:35,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3175 states to 3175 states and 4242 transitions. [2021-11-20 05:40:35,732 INFO L78 Accepts]: Start accepts. Automaton has 3175 states and 4242 transitions. Word has length 56 [2021-11-20 05:40:35,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:40:35,733 INFO L470 AbstractCegarLoop]: Abstraction has 3175 states and 4242 transitions. [2021-11-20 05:40:35,733 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) [2021-11-20 05:40:35,733 INFO L276 IsEmpty]: Start isEmpty. Operand 3175 states and 4242 transitions. [2021-11-20 05:40:35,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-11-20 05:40:35,739 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:40:35,740 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] [2021-11-20 05:40:35,740 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-20 05:40:35,741 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_linux_block_queue_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2021-11-20 05:40:35,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:40:35,741 INFO L85 PathProgramCache]: Analyzing trace with hash 129867478, now seen corresponding path program 1 times [2021-11-20 05:40:35,742 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:40:35,742 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1364479617] [2021-11-20 05:40:35,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:40:35,742 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:40:35,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:40:35,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-20 05:40:35,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:40:35,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-11-20 05:40:36,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:40:36,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-11-20 05:40:36,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:40:36,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-11-20 05:40:36,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:40:36,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:40:36,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:40:36,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-20 05:40:36,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:40:36,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-11-20 05:40:36,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:40:36,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-11-20 05:40:36,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:40:36,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-11-20 05:40:36,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:40:36,129 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-20 05:40:36,129 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:40:36,130 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1364479617] [2021-11-20 05:40:36,130 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1364479617] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:40:36,130 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:40:36,130 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-20 05:40:36,130 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1833280388] [2021-11-20 05:40:36,131 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:40:36,131 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-20 05:40:36,131 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:40:36,132 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-20 05:40:36,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-20 05:40:36,132 INFO L87 Difference]: Start difference. First operand 3175 states and 4242 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) [2021-11-20 05:40:40,442 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-20 05:40:44,628 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-20 05:40:46,955 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:40:52,933 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:40:56,896 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-20 05:40:59,060 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-20 05:41:00,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:41:00,528 INFO L93 Difference]: Finished difference Result 6309 states and 8436 transitions. [2021-11-20 05:41:00,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-20 05:41:00,529 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 [2021-11-20 05:41:00,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:41:00,583 INFO L225 Difference]: With dead ends: 6309 [2021-11-20 05:41:00,584 INFO L226 Difference]: Without dead ends: 6307 [2021-11-20 05:41:00,588 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2021-11-20 05:41:00,589 INFO L933 BasicCegarLoop]: 2348 mSDtfsCounter, 5253 mSDsluCounter, 3855 mSDsCounter, 0 mSdLazyCounter, 3446 mSolverCounterSat, 2435 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5446 SdHoareTripleChecker+Valid, 6203 SdHoareTripleChecker+Invalid, 5887 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2435 IncrementalHoareTripleChecker+Valid, 3446 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 23.8s IncrementalHoareTripleChecker+Time [2021-11-20 05:41:00,590 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5446 Valid, 6203 Invalid, 5887 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2435 Valid, 3446 Invalid, 6 Unknown, 0 Unchecked, 23.8s Time] [2021-11-20 05:41:00,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6307 states. [2021-11-20 05:41:00,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6307 to 6124. [2021-11-20 05:41:00,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6124 states, 4377 states have (on average 1.2670779072424034) internal successors, (5546), 4510 states have internal predecessors, (5546), 1340 states have call successors, (1340), 375 states have call predecessors, (1340), 374 states have return successors, (1362), 1319 states have call predecessors, (1362), 1338 states have call successors, (1362) [2021-11-20 05:41:01,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6124 states to 6124 states and 8248 transitions. [2021-11-20 05:41:01,020 INFO L78 Accepts]: Start accepts. Automaton has 6124 states and 8248 transitions. Word has length 62 [2021-11-20 05:41:01,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:41:01,021 INFO L470 AbstractCegarLoop]: Abstraction has 6124 states and 8248 transitions. [2021-11-20 05:41:01,022 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) [2021-11-20 05:41:01,022 INFO L276 IsEmpty]: Start isEmpty. Operand 6124 states and 8248 transitions. [2021-11-20 05:41:01,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-11-20 05:41:01,024 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:41:01,024 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] [2021-11-20 05:41:01,024 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-20 05:41:01,025 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_linux_block_request_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2021-11-20 05:41:01,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:41:01,026 INFO L85 PathProgramCache]: Analyzing trace with hash 77930130, now seen corresponding path program 1 times [2021-11-20 05:41:01,026 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:41:01,026 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [713938099] [2021-11-20 05:41:01,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:41:01,027 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:41:01,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:41:01,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-20 05:41:01,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:41:01,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-11-20 05:41:01,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:41:01,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-11-20 05:41:01,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:41:01,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-11-20 05:41:01,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:41:01,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:41:01,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:41:01,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-20 05:41:01,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:41:01,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-11-20 05:41:01,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:41:01,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-11-20 05:41:01,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:41:01,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-11-20 05:41:01,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:41:01,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-20 05:41:01,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:41:01,406 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-20 05:41:01,407 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:41:01,407 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [713938099] [2021-11-20 05:41:01,407 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [713938099] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:41:01,407 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:41:01,407 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-20 05:41:01,408 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1224764013] [2021-11-20 05:41:01,408 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:41:01,408 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-20 05:41:01,409 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:41:01,409 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-20 05:41:01,409 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-20 05:41:01,409 INFO L87 Difference]: Start difference. First operand 6124 states and 8248 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) [2021-11-20 05:41:05,631 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-20 05:41:09,297 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-20 05:41:12,674 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:41:14,746 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-20 05:41:16,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:41:16,155 INFO L93 Difference]: Finished difference Result 6552 states and 8754 transitions. [2021-11-20 05:41:16,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-20 05:41:16,155 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 [2021-11-20 05:41:16,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:41:16,208 INFO L225 Difference]: With dead ends: 6552 [2021-11-20 05:41:16,208 INFO L226 Difference]: Without dead ends: 6550 [2021-11-20 05:41:16,213 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-11-20 05:41:16,214 INFO L933 BasicCegarLoop]: 2087 mSDtfsCounter, 3684 mSDsluCounter, 2429 mSDsCounter, 0 mSdLazyCounter, 1778 mSolverCounterSat, 1463 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3882 SdHoareTripleChecker+Valid, 4516 SdHoareTripleChecker+Invalid, 3245 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1463 IncrementalHoareTripleChecker+Valid, 1778 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.3s IncrementalHoareTripleChecker+Time [2021-11-20 05:41:16,215 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3882 Valid, 4516 Invalid, 3245 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1463 Valid, 1778 Invalid, 4 Unknown, 0 Unchecked, 14.3s Time] [2021-11-20 05:41:16,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6550 states. [2021-11-20 05:41:16,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6550 to 6534. [2021-11-20 05:41:16,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6534 states, 4656 states have (on average 1.2628865979381443) internal successors, (5880), 4792 states have internal predecessors, (5880), 1416 states have call successors, (1416), 431 states have call predecessors, (1416), 430 states have return successors, (1438), 1391 states have call predecessors, (1438), 1414 states have call successors, (1438) [2021-11-20 05:41:16,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6534 states to 6534 states and 8734 transitions. [2021-11-20 05:41:16,673 INFO L78 Accepts]: Start accepts. Automaton has 6534 states and 8734 transitions. Word has length 68 [2021-11-20 05:41:16,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:41:16,673 INFO L470 AbstractCegarLoop]: Abstraction has 6534 states and 8734 transitions. [2021-11-20 05:41:16,674 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) [2021-11-20 05:41:16,674 INFO L276 IsEmpty]: Start isEmpty. Operand 6534 states and 8734 transitions. [2021-11-20 05:41:16,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-11-20 05:41:16,675 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:41:16,676 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] [2021-11-20 05:41:16,676 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-20 05:41:16,676 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_linux_drivers_base_class_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2021-11-20 05:41:16,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:41:16,677 INFO L85 PathProgramCache]: Analyzing trace with hash -1629920272, now seen corresponding path program 1 times [2021-11-20 05:41:16,677 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:41:16,677 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [703248477] [2021-11-20 05:41:16,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:41:16,677 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:41:16,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:41:16,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-20 05:41:16,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:41:16,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-11-20 05:41:16,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:41:16,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-11-20 05:41:16,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:41:16,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-11-20 05:41:16,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:41:16,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:41:16,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:41:16,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-20 05:41:16,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:41:16,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-11-20 05:41:16,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:41:16,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-11-20 05:41:16,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:41:16,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-11-20 05:41:16,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:41:16,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-20 05:41:16,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:41:16,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-11-20 05:41:16,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:41:16,994 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-20 05:41:16,994 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:41:16,994 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [703248477] [2021-11-20 05:41:16,994 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [703248477] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:41:16,994 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:41:16,995 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-20 05:41:16,995 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1822034659] [2021-11-20 05:41:16,995 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:41:16,996 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-20 05:41:16,997 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:41:16,997 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-20 05:41:16,997 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-20 05:41:16,997 INFO L87 Difference]: Start difference. First operand 6534 states and 8734 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) [2021-11-20 05:41:20,770 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-20 05:41:22,956 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-20 05:41:25,561 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-20 05:41:30,094 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:41:31,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:41:31,573 INFO L93 Difference]: Finished difference Result 6534 states and 8734 transitions. [2021-11-20 05:41:31,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-20 05:41:31,573 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 [2021-11-20 05:41:31,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:41:31,626 INFO L225 Difference]: With dead ends: 6534 [2021-11-20 05:41:31,627 INFO L226 Difference]: Without dead ends: 6532 [2021-11-20 05:41:31,631 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2021-11-20 05:41:31,632 INFO L933 BasicCegarLoop]: 2085 mSDtfsCounter, 3505 mSDsluCounter, 2408 mSDsCounter, 0 mSdLazyCounter, 1635 mSolverCounterSat, 1390 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3700 SdHoareTripleChecker+Valid, 4493 SdHoareTripleChecker+Invalid, 3029 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1390 IncrementalHoareTripleChecker+Valid, 1635 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.2s IncrementalHoareTripleChecker+Time [2021-11-20 05:41:31,633 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3700 Valid, 4493 Invalid, 3029 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1390 Valid, 1635 Invalid, 4 Unknown, 0 Unchecked, 14.2s Time] [2021-11-20 05:41:31,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6532 states. [2021-11-20 05:41:31,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6532 to 6532. [2021-11-20 05:41:32,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6532 states, 4655 states have (on average 1.2627282491944145) internal successors, (5878), 4790 states have internal predecessors, (5878), 1416 states have call successors, (1416), 431 states have call predecessors, (1416), 430 states have return successors, (1438), 1391 states have call predecessors, (1438), 1414 states have call successors, (1438) [2021-11-20 05:41:32,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6532 states to 6532 states and 8732 transitions. [2021-11-20 05:41:32,062 INFO L78 Accepts]: Start accepts. Automaton has 6532 states and 8732 transitions. Word has length 74 [2021-11-20 05:41:32,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:41:32,063 INFO L470 AbstractCegarLoop]: Abstraction has 6532 states and 8732 transitions. [2021-11-20 05:41:32,064 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) [2021-11-20 05:41:32,064 INFO L276 IsEmpty]: Start isEmpty. Operand 6532 states and 8732 transitions. [2021-11-20 05:41:32,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2021-11-20 05:41:32,066 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:41:32,066 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] [2021-11-20 05:41:32,066 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-20 05:41:32,067 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_linux_fs_char_dev_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2021-11-20 05:41:32,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:41:32,067 INFO L85 PathProgramCache]: Analyzing trace with hash -1067365840, now seen corresponding path program 1 times [2021-11-20 05:41:32,067 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:41:32,068 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1260427662] [2021-11-20 05:41:32,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:41:32,068 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:41:32,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:41:32,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-20 05:41:32,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:41:32,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-11-20 05:41:32,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:41:32,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-11-20 05:41:32,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:41:32,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-11-20 05:41:32,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:41:32,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:41:32,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:41:32,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-20 05:41:32,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:41:32,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-11-20 05:41:32,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:41:32,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-11-20 05:41:32,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:41:32,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-11-20 05:41:32,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:41:32,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-20 05:41:32,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:41:32,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-11-20 05:41:32,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:41:32,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-11-20 05:41:32,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:41:32,479 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-20 05:41:32,479 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:41:32,479 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1260427662] [2021-11-20 05:41:32,480 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1260427662] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:41:32,480 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:41:32,480 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-20 05:41:32,480 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [904286146] [2021-11-20 05:41:32,480 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:41:32,481 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-20 05:41:32,481 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:41:32,481 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-20 05:41:32,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-20 05:41:32,482 INFO L87 Difference]: Start difference. First operand 6532 states and 8732 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) [2021-11-20 05:41:36,370 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-20 05:41:40,482 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-20 05:41:43,897 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:41:45,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:41:45,241 INFO L93 Difference]: Finished difference Result 6552 states and 8754 transitions. [2021-11-20 05:41:45,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-20 05:41:45,242 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 [2021-11-20 05:41:45,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:41:45,290 INFO L225 Difference]: With dead ends: 6552 [2021-11-20 05:41:45,290 INFO L226 Difference]: Without dead ends: 6550 [2021-11-20 05:41:45,294 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-11-20 05:41:45,295 INFO L933 BasicCegarLoop]: 2084 mSDtfsCounter, 3672 mSDsluCounter, 2429 mSDsCounter, 0 mSdLazyCounter, 1779 mSolverCounterSat, 1465 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3868 SdHoareTripleChecker+Valid, 4513 SdHoareTripleChecker+Invalid, 3247 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1465 IncrementalHoareTripleChecker+Valid, 1779 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.3s IncrementalHoareTripleChecker+Time [2021-11-20 05:41:45,296 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3868 Valid, 4513 Invalid, 3247 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1465 Valid, 1779 Invalid, 3 Unknown, 0 Unchecked, 12.3s Time] [2021-11-20 05:41:45,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6550 states. [2021-11-20 05:41:45,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6550 to 6530. [2021-11-20 05:41:45,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6530 states, 4654 states have (on average 1.2625698324022345) internal successors, (5876), 4788 states have internal predecessors, (5876), 1416 states have call successors, (1416), 431 states have call predecessors, (1416), 430 states have return successors, (1438), 1391 states have call predecessors, (1438), 1414 states have call successors, (1438) [2021-11-20 05:41:45,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6530 states to 6530 states and 8730 transitions. [2021-11-20 05:41:45,719 INFO L78 Accepts]: Start accepts. Automaton has 6530 states and 8730 transitions. Word has length 80 [2021-11-20 05:41:45,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:41:45,720 INFO L470 AbstractCegarLoop]: Abstraction has 6530 states and 8730 transitions. [2021-11-20 05:41:45,721 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) [2021-11-20 05:41:45,721 INFO L276 IsEmpty]: Start isEmpty. Operand 6530 states and 8730 transitions. [2021-11-20 05:41:45,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2021-11-20 05:41:45,726 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:41:45,726 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] [2021-11-20 05:41:45,726 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-20 05:41:45,726 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2021-11-20 05:41:45,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:41:45,727 INFO L85 PathProgramCache]: Analyzing trace with hash 1911493740, now seen corresponding path program 1 times [2021-11-20 05:41:45,727 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:41:45,727 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [430259698] [2021-11-20 05:41:45,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:41:45,728 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:41:45,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:41:45,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-20 05:41:45,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:41:45,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-11-20 05:41:45,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:41:45,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-11-20 05:41:45,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:41:45,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-11-20 05:41:45,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:41:46,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:41:46,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:41:46,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-20 05:41:46,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:41:46,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-11-20 05:41:46,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:41:46,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-11-20 05:41:46,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:41:46,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-11-20 05:41:46,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:41:46,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-20 05:41:46,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:41:46,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-11-20 05:41:46,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:41:46,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-11-20 05:41:46,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:41:46,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-11-20 05:41:46,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:41:46,107 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-20 05:41:46,107 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:41:46,107 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [430259698] [2021-11-20 05:41:46,108 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [430259698] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:41:46,108 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:41:46,108 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-20 05:41:46,108 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [286303301] [2021-11-20 05:41:46,108 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:41:46,110 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-20 05:41:46,110 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:41:46,110 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-20 05:41:46,110 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-20 05:41:46,111 INFO L87 Difference]: Start difference. First operand 6530 states and 8730 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) [2021-11-20 05:41:53,009 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:41:54,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:41:54,416 INFO L93 Difference]: Finished difference Result 6530 states and 8730 transitions. [2021-11-20 05:41:54,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-20 05:41:54,417 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 [2021-11-20 05:41:54,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:41:54,448 INFO L225 Difference]: With dead ends: 6530 [2021-11-20 05:41:54,448 INFO L226 Difference]: Without dead ends: 6528 [2021-11-20 05:41:54,451 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2021-11-20 05:41:54,452 INFO L933 BasicCegarLoop]: 2081 mSDtfsCounter, 3493 mSDsluCounter, 2408 mSDsCounter, 0 mSdLazyCounter, 1634 mSolverCounterSat, 1390 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3686 SdHoareTripleChecker+Valid, 4489 SdHoareTripleChecker+Invalid, 3025 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1390 IncrementalHoareTripleChecker+Valid, 1634 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.8s IncrementalHoareTripleChecker+Time [2021-11-20 05:41:54,452 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3686 Valid, 4489 Invalid, 3025 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1390 Valid, 1634 Invalid, 1 Unknown, 0 Unchecked, 7.8s Time] [2021-11-20 05:41:54,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6528 states. [2021-11-20 05:41:54,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6528 to 6528. [2021-11-20 05:41:54,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6528 states, 4653 states have (on average 1.2624113475177305) internal successors, (5874), 4786 states have internal predecessors, (5874), 1416 states have call successors, (1416), 431 states have call predecessors, (1416), 430 states have return successors, (1438), 1391 states have call predecessors, (1438), 1414 states have call successors, (1438) [2021-11-20 05:41:54,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6528 states to 6528 states and 8728 transitions. [2021-11-20 05:41:54,797 INFO L78 Accepts]: Start accepts. Automaton has 6528 states and 8728 transitions. Word has length 86 [2021-11-20 05:41:54,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:41:54,798 INFO L470 AbstractCegarLoop]: Abstraction has 6528 states and 8728 transitions. [2021-11-20 05:41:54,798 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) [2021-11-20 05:41:54,798 INFO L276 IsEmpty]: Start isEmpty. Operand 6528 states and 8728 transitions. [2021-11-20 05:41:54,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2021-11-20 05:41:54,804 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:41:54,804 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] [2021-11-20 05:41:54,805 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-20 05:41:54,805 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_linux_kernel_locking_rwlock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2021-11-20 05:41:54,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:41:54,806 INFO L85 PathProgramCache]: Analyzing trace with hash -1715100088, now seen corresponding path program 1 times [2021-11-20 05:41:54,806 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:41:54,806 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [37791573] [2021-11-20 05:41:54,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:41:54,807 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:41:54,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:41:54,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-20 05:41:54,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:41:55,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-11-20 05:41:55,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:41:55,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-11-20 05:41:55,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:41:55,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-11-20 05:41:55,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:41:55,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:41:55,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:41:55,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-20 05:41:55,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:41:55,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-11-20 05:41:55,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:41:55,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-11-20 05:41:55,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:41:55,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-11-20 05:41:55,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:41:55,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-20 05:41:55,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:41:55,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-11-20 05:41:55,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:41:55,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-11-20 05:41:55,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:41:55,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-11-20 05:41:55,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:41:55,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-20 05:41:55,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:41:55,191 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-20 05:41:55,191 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:41:55,192 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [37791573] [2021-11-20 05:41:55,192 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [37791573] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:41:55,192 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:41:55,192 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-20 05:41:55,192 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [92780863] [2021-11-20 05:41:55,193 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:41:55,194 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-20 05:41:55,194 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:41:55,194 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-20 05:41:55,194 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-20 05:41:55,195 INFO L87 Difference]: Start difference. First operand 6528 states and 8728 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) [2021-11-20 05:41:58,909 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-20 05:42:01,607 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-20 05:42:03,731 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-20 05:42:08,277 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:42:09,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:42:09,606 INFO L93 Difference]: Finished difference Result 6528 states and 8728 transitions. [2021-11-20 05:42:09,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-20 05:42:09,607 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 [2021-11-20 05:42:09,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:42:09,636 INFO L225 Difference]: With dead ends: 6528 [2021-11-20 05:42:09,636 INFO L226 Difference]: Without dead ends: 6526 [2021-11-20 05:42:09,640 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2021-11-20 05:42:09,641 INFO L933 BasicCegarLoop]: 2079 mSDtfsCounter, 3491 mSDsluCounter, 2408 mSDsCounter, 0 mSdLazyCounter, 1625 mSolverCounterSat, 1390 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3683 SdHoareTripleChecker+Valid, 4487 SdHoareTripleChecker+Invalid, 3019 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1390 IncrementalHoareTripleChecker+Valid, 1625 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.0s IncrementalHoareTripleChecker+Time [2021-11-20 05:42:09,642 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3683 Valid, 4487 Invalid, 3019 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1390 Valid, 1625 Invalid, 4 Unknown, 0 Unchecked, 14.0s Time] [2021-11-20 05:42:09,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6526 states. [2021-11-20 05:42:10,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6526 to 6526. [2021-11-20 05:42:10,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6526 states, 4652 states have (on average 1.2622527944969906) internal successors, (5872), 4784 states have internal predecessors, (5872), 1416 states have call successors, (1416), 431 states have call predecessors, (1416), 430 states have return successors, (1438), 1391 states have call predecessors, (1438), 1414 states have call successors, (1438) [2021-11-20 05:42:10,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6526 states to 6526 states and 8726 transitions. [2021-11-20 05:42:10,073 INFO L78 Accepts]: Start accepts. Automaton has 6526 states and 8726 transitions. Word has length 92 [2021-11-20 05:42:10,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:42:10,073 INFO L470 AbstractCegarLoop]: Abstraction has 6526 states and 8726 transitions. [2021-11-20 05:42:10,074 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) [2021-11-20 05:42:10,074 INFO L276 IsEmpty]: Start isEmpty. Operand 6526 states and 8726 transitions. [2021-11-20 05:42:10,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-11-20 05:42:10,078 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:42:10,078 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:42:10,079 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-20 05:42:10,079 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2021-11-20 05:42:10,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:42:10,080 INFO L85 PathProgramCache]: Analyzing trace with hash 1274599851, now seen corresponding path program 1 times [2021-11-20 05:42:10,080 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:42:10,080 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [761277538] [2021-11-20 05:42:10,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:42:10,080 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:42:10,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:42:10,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-20 05:42:10,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:42:10,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-11-20 05:42:10,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:42:10,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-11-20 05:42:10,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:42:10,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-11-20 05:42:10,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:42:10,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:42:10,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:42:10,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 05:42:10,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:42:10,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-20 05:42:10,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:42:10,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-20 05:42:10,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:42:10,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:42:10,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:42:10,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 05:42:10,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:42:10,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-20 05:42:10,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:42:10,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2021-11-20 05:42:10,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:42:10,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:42:10,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:42:10,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 05:42:10,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:42:10,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-20 05:42:10,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:42:10,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-11-20 05:42:10,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:42:10,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-11-20 05:42:10,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:42:10,596 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2021-11-20 05:42:10,596 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:42:10,596 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [761277538] [2021-11-20 05:42:10,596 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [761277538] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:42:10,597 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:42:10,597 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-20 05:42:10,597 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [674993658] [2021-11-20 05:42:10,597 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:42:10,597 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-20 05:42:10,598 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:42:10,598 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-20 05:42:10,598 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-20 05:42:10,598 INFO L87 Difference]: Start difference. First operand 6526 states and 8726 transitions. Second operand has 7 states, 7 states have (on average 6.0) internal successors, (42), 5 states have internal predecessors, (42), 2 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (11), 3 states have call predecessors, (11), 2 states have call successors, (11) [2021-11-20 05:42:19,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:42:19,413 INFO L93 Difference]: Finished difference Result 13417 states and 18135 transitions. [2021-11-20 05:42:19,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-20 05:42:19,414 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.0) internal successors, (42), 5 states have internal predecessors, (42), 2 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (11), 3 states have call predecessors, (11), 2 states have call successors, (11) Word has length 113 [2021-11-20 05:42:19,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:42:19,450 INFO L225 Difference]: With dead ends: 13417 [2021-11-20 05:42:19,451 INFO L226 Difference]: Without dead ends: 6918 [2021-11-20 05:42:19,484 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2021-11-20 05:42:19,487 INFO L933 BasicCegarLoop]: 2174 mSDtfsCounter, 2467 mSDsluCounter, 5327 mSDsCounter, 0 mSdLazyCounter, 2916 mSolverCounterSat, 628 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2730 SdHoareTripleChecker+Valid, 7501 SdHoareTripleChecker+Invalid, 3544 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 628 IncrementalHoareTripleChecker+Valid, 2916 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.2s IncrementalHoareTripleChecker+Time [2021-11-20 05:42:19,488 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2730 Valid, 7501 Invalid, 3544 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [628 Valid, 2916 Invalid, 0 Unknown, 0 Unchecked, 8.2s Time] [2021-11-20 05:42:19,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6918 states. [2021-11-20 05:42:19,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6918 to 6526. [2021-11-20 05:42:19,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6526 states, 4652 states have (on average 1.2605331040412726) internal successors, (5864), 4784 states have internal predecessors, (5864), 1416 states have call successors, (1416), 431 states have call predecessors, (1416), 430 states have return successors, (1438), 1391 states have call predecessors, (1438), 1414 states have call successors, (1438) [2021-11-20 05:42:19,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6526 states to 6526 states and 8718 transitions. [2021-11-20 05:42:19,946 INFO L78 Accepts]: Start accepts. Automaton has 6526 states and 8718 transitions. Word has length 113 [2021-11-20 05:42:19,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:42:19,946 INFO L470 AbstractCegarLoop]: Abstraction has 6526 states and 8718 transitions. [2021-11-20 05:42:19,947 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.0) internal successors, (42), 5 states have internal predecessors, (42), 2 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (11), 3 states have call predecessors, (11), 2 states have call successors, (11) [2021-11-20 05:42:19,947 INFO L276 IsEmpty]: Start isEmpty. Operand 6526 states and 8718 transitions. [2021-11-20 05:42:19,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-11-20 05:42:19,950 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:42:19,950 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:42:19,950 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-20 05:42:19,951 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2021-11-20 05:42:19,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:42:19,951 INFO L85 PathProgramCache]: Analyzing trace with hash 1274659433, now seen corresponding path program 1 times [2021-11-20 05:42:19,952 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:42:19,952 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1520843094] [2021-11-20 05:42:19,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:42:19,952 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:42:20,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:42:20,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-20 05:42:20,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:42:20,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-11-20 05:42:20,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:42:20,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-11-20 05:42:20,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:42:20,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-11-20 05:42:20,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:42:20,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:42:20,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:42:20,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 05:42:20,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:42:20,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-20 05:42:20,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:42:20,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-20 05:42:20,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:42:20,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:42:20,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:42:20,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 05:42:20,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:42:20,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-20 05:42:20,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:42:20,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2021-11-20 05:42:20,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:42:20,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:42:20,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:42:20,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 05:42:20,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:42:20,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-20 05:42:20,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:42:20,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-11-20 05:42:20,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:42:20,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-11-20 05:42:20,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:42:20,368 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2021-11-20 05:42:20,368 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:42:20,368 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1520843094] [2021-11-20 05:42:20,369 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1520843094] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:42:20,369 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:42:20,369 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-20 05:42:20,369 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2084169372] [2021-11-20 05:42:20,369 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:42:20,370 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-20 05:42:20,370 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:42:20,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-20 05:42:20,371 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-20 05:42:20,371 INFO L87 Difference]: Start difference. First operand 6526 states and 8718 transitions. Second operand has 5 states, 5 states have (on average 8.4) internal successors, (42), 4 states have internal predecessors, (42), 1 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2021-11-20 05:42:24,887 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:42:27,009 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:42:30,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:42:30,445 INFO L93 Difference]: Finished difference Result 6918 states and 9362 transitions. [2021-11-20 05:42:30,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-20 05:42:30,446 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 4 states have internal predecessors, (42), 1 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 113 [2021-11-20 05:42:30,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:42:30,477 INFO L225 Difference]: With dead ends: 6918 [2021-11-20 05:42:30,477 INFO L226 Difference]: Without dead ends: 6916 [2021-11-20 05:42:30,483 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-20 05:42:30,484 INFO L933 BasicCegarLoop]: 2179 mSDtfsCounter, 546 mSDsluCounter, 4342 mSDsCounter, 0 mSdLazyCounter, 1622 mSolverCounterSat, 393 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 616 SdHoareTripleChecker+Valid, 6521 SdHoareTripleChecker+Invalid, 2017 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 393 IncrementalHoareTripleChecker+Valid, 1622 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.7s IncrementalHoareTripleChecker+Time [2021-11-20 05:42:30,484 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [616 Valid, 6521 Invalid, 2017 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [393 Valid, 1622 Invalid, 2 Unknown, 0 Unchecked, 9.7s Time] [2021-11-20 05:42:30,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6916 states. [2021-11-20 05:42:30,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6916 to 6524. [2021-11-20 05:42:30,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6524 states, 4651 states have (on average 1.2588690604171147) internal successors, (5855), 4782 states have internal predecessors, (5855), 1416 states have call successors, (1416), 431 states have call predecessors, (1416), 430 states have return successors, (1438), 1391 states have call predecessors, (1438), 1414 states have call successors, (1438) [2021-11-20 05:42:30,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6524 states to 6524 states and 8709 transitions. [2021-11-20 05:42:30,967 INFO L78 Accepts]: Start accepts. Automaton has 6524 states and 8709 transitions. Word has length 113 [2021-11-20 05:42:30,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:42:30,968 INFO L470 AbstractCegarLoop]: Abstraction has 6524 states and 8709 transitions. [2021-11-20 05:42:30,968 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 4 states have internal predecessors, (42), 1 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2021-11-20 05:42:30,968 INFO L276 IsEmpty]: Start isEmpty. Operand 6524 states and 8709 transitions. [2021-11-20 05:42:30,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-11-20 05:42:30,970 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:42:30,971 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] [2021-11-20 05:42:30,971 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-20 05:42:30,971 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_linux_kernel_locking_rwlock_check_final_stateErr1ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2021-11-20 05:42:30,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:42:30,972 INFO L85 PathProgramCache]: Analyzing trace with hash 1056393611, now seen corresponding path program 1 times [2021-11-20 05:42:30,972 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:42:30,972 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1162708975] [2021-11-20 05:42:30,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:42:30,972 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:42:31,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:42:31,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-20 05:42:31,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:42:31,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-11-20 05:42:31,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:42:31,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-11-20 05:42:31,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:42:31,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-11-20 05:42:31,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:42:31,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:42:31,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:42:31,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-20 05:42:31,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:42:31,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-11-20 05:42:31,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:42:31,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-11-20 05:42:31,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:42:31,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-11-20 05:42:31,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:42:31,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-20 05:42:31,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:42:31,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-11-20 05:42:31,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:42:31,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-11-20 05:42:31,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:42:31,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-11-20 05:42:31,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:42:31,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-20 05:42:31,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:42:31,311 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-20 05:42:31,311 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:42:31,311 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1162708975] [2021-11-20 05:42:31,312 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1162708975] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:42:31,312 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:42:31,312 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-20 05:42:31,312 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [885093492] [2021-11-20 05:42:31,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:42:31,313 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-20 05:42:31,313 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:42:31,314 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-20 05:42:31,314 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-20 05:42:31,315 INFO L87 Difference]: Start difference. First operand 6524 states and 8709 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) [2021-11-20 05:42:38,221 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:42:39,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:42:39,623 INFO L93 Difference]: Finished difference Result 6524 states and 8709 transitions. [2021-11-20 05:42:39,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-20 05:42:39,624 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 [2021-11-20 05:42:39,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:42:39,655 INFO L225 Difference]: With dead ends: 6524 [2021-11-20 05:42:39,655 INFO L226 Difference]: Without dead ends: 6522 [2021-11-20 05:42:39,659 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2021-11-20 05:42:39,660 INFO L933 BasicCegarLoop]: 2074 mSDtfsCounter, 3470 mSDsluCounter, 2408 mSDsCounter, 0 mSdLazyCounter, 1627 mSolverCounterSat, 1390 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3662 SdHoareTripleChecker+Valid, 4482 SdHoareTripleChecker+Invalid, 3018 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1390 IncrementalHoareTripleChecker+Valid, 1627 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.8s IncrementalHoareTripleChecker+Time [2021-11-20 05:42:39,661 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3662 Valid, 4482 Invalid, 3018 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1390 Valid, 1627 Invalid, 1 Unknown, 0 Unchecked, 7.8s Time] [2021-11-20 05:42:39,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6522 states. [2021-11-20 05:42:40,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6522 to 6522. [2021-11-20 05:42:40,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6522 states, 4650 states have (on average 1.258709677419355) internal successors, (5853), 4780 states have internal predecessors, (5853), 1416 states have call successors, (1416), 431 states have call predecessors, (1416), 430 states have return successors, (1438), 1391 states have call predecessors, (1438), 1414 states have call successors, (1438) [2021-11-20 05:42:40,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6522 states to 6522 states and 8707 transitions. [2021-11-20 05:42:40,147 INFO L78 Accepts]: Start accepts. Automaton has 6522 states and 8707 transitions. Word has length 94 [2021-11-20 05:42:40,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:42:40,147 INFO L470 AbstractCegarLoop]: Abstraction has 6522 states and 8707 transitions. [2021-11-20 05:42:40,148 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) [2021-11-20 05:42:40,148 INFO L276 IsEmpty]: Start isEmpty. Operand 6522 states and 8707 transitions. [2021-11-20 05:42:40,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2021-11-20 05:42:40,150 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:42:40,150 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:42:40,150 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-20 05:42:40,151 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_check_alloc_flagsErr1ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2021-11-20 05:42:40,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:42:40,152 INFO L85 PathProgramCache]: Analyzing trace with hash 1657990063, now seen corresponding path program 1 times [2021-11-20 05:42:40,152 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:42:40,152 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [673612695] [2021-11-20 05:42:40,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:42:40,152 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:42:40,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:42:40,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-20 05:42:40,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:42:40,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-11-20 05:42:40,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:42:40,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-11-20 05:42:40,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:42:40,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-11-20 05:42:40,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:42:40,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:42:40,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:42:40,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 05:42:40,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:42:40,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-20 05:42:40,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:42:40,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-20 05:42:40,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:42:40,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:42:40,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:42:40,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 05:42:40,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:42:40,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-20 05:42:40,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:42:40,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2021-11-20 05:42:40,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:42:40,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:42:40,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:42:40,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 05:42:40,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:42:40,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-20 05:42:40,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:42:40,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-11-20 05:42:40,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:42:40,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-11-20 05:42:40,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:42:40,504 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2021-11-20 05:42:40,505 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:42:40,505 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [673612695] [2021-11-20 05:42:40,505 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [673612695] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:42:40,505 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:42:40,506 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 05:42:40,506 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [651095173] [2021-11-20 05:42:40,506 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:42:40,507 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 05:42:40,507 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:42:40,507 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 05:42:40,507 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 05:42:40,508 INFO L87 Difference]: Start difference. First operand 6522 states and 8707 transitions. Second operand has 4 states, 4 states have (on average 11.5) internal successors, (46), 3 states have internal predecessors, (46), 2 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2021-11-20 05:42:43,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:42:43,852 INFO L93 Difference]: Finished difference Result 13391 states and 18072 transitions. [2021-11-20 05:42:43,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 05:42:43,853 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 3 states have internal predecessors, (46), 2 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 117 [2021-11-20 05:42:43,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:42:43,885 INFO L225 Difference]: With dead ends: 13391 [2021-11-20 05:42:43,885 INFO L226 Difference]: Without dead ends: 6896 [2021-11-20 05:42:43,914 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-20 05:42:43,915 INFO L933 BasicCegarLoop]: 2170 mSDtfsCounter, 2430 mSDsluCounter, 966 mSDsCounter, 0 mSdLazyCounter, 499 mSolverCounterSat, 625 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2690 SdHoareTripleChecker+Valid, 3136 SdHoareTripleChecker+Invalid, 1124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 625 IncrementalHoareTripleChecker+Valid, 499 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2021-11-20 05:42:43,916 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2690 Valid, 3136 Invalid, 1124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [625 Valid, 499 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2021-11-20 05:42:43,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6896 states. [2021-11-20 05:42:44,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6896 to 6504. [2021-11-20 05:42:44,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6504 states, 4633 states have (on average 1.2562054824088065) internal successors, (5820), 4762 states have internal predecessors, (5820), 1416 states have call successors, (1416), 431 states have call predecessors, (1416), 430 states have return successors, (1438), 1391 states have call predecessors, (1438), 1414 states have call successors, (1438) [2021-11-20 05:42:44,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6504 states to 6504 states and 8674 transitions. [2021-11-20 05:42:44,358 INFO L78 Accepts]: Start accepts. Automaton has 6504 states and 8674 transitions. Word has length 117 [2021-11-20 05:42:44,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:42:44,361 INFO L470 AbstractCegarLoop]: Abstraction has 6504 states and 8674 transitions. [2021-11-20 05:42:44,361 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 3 states have internal predecessors, (46), 2 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2021-11-20 05:42:44,361 INFO L276 IsEmpty]: Start isEmpty. Operand 6504 states and 8674 transitions. [2021-11-20 05:42:44,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2021-11-20 05:42:44,364 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:42:44,364 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] [2021-11-20 05:42:44,364 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-11-20 05:42:44,372 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_linux_kernel_module_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2021-11-20 05:42:44,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:42:44,373 INFO L85 PathProgramCache]: Analyzing trace with hash -1910334215, now seen corresponding path program 1 times [2021-11-20 05:42:44,373 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:42:44,373 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1318137428] [2021-11-20 05:42:44,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:42:44,374 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:42:44,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:42:44,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-20 05:42:44,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:42:44,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-11-20 05:42:44,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:42:44,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-11-20 05:42:44,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:42:44,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-11-20 05:42:44,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:42:44,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:42:44,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:42:44,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-20 05:42:44,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:42:44,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-11-20 05:42:44,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:42:44,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-11-20 05:42:44,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:42:44,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-11-20 05:42:44,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:42:44,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-20 05:42:44,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:42:44,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-11-20 05:42:44,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:42:44,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-11-20 05:42:44,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:42:44,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-11-20 05:42:44,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:42:44,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-20 05:42:44,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:42:44,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-11-20 05:42:44,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:42:44,766 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-20 05:42:44,766 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:42:44,767 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1318137428] [2021-11-20 05:42:44,767 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1318137428] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:42:44,767 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:42:44,767 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-20 05:42:44,767 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [656042705] [2021-11-20 05:42:44,767 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:42:44,768 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-20 05:42:44,768 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:42:44,768 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-20 05:42:44,769 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-20 05:42:44,769 INFO L87 Difference]: Start difference. First operand 6504 states and 8674 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) [2021-11-20 05:42:48,723 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-20 05:42:50,923 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-20 05:42:53,608 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-20 05:42:58,156 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:42:59,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:42:59,641 INFO L93 Difference]: Finished difference Result 6504 states and 8674 transitions. [2021-11-20 05:42:59,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-20 05:42:59,641 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 [2021-11-20 05:42:59,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:42:59,667 INFO L225 Difference]: With dead ends: 6504 [2021-11-20 05:42:59,667 INFO L226 Difference]: Without dead ends: 6502 [2021-11-20 05:42:59,672 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2021-11-20 05:42:59,673 INFO L933 BasicCegarLoop]: 2067 mSDtfsCounter, 3451 mSDsluCounter, 2408 mSDsCounter, 0 mSdLazyCounter, 1617 mSolverCounterSat, 1390 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3642 SdHoareTripleChecker+Valid, 4475 SdHoareTripleChecker+Invalid, 3011 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1390 IncrementalHoareTripleChecker+Valid, 1617 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.3s IncrementalHoareTripleChecker+Time [2021-11-20 05:42:59,673 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3642 Valid, 4475 Invalid, 3011 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1390 Valid, 1617 Invalid, 4 Unknown, 0 Unchecked, 14.3s Time] [2021-11-20 05:42:59,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6502 states. [2021-11-20 05:43:00,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6502 to 6502. [2021-11-20 05:43:00,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6502 states, 4632 states have (on average 1.2560449050086355) internal successors, (5818), 4760 states have internal predecessors, (5818), 1416 states have call successors, (1416), 431 states have call predecessors, (1416), 430 states have return successors, (1438), 1391 states have call predecessors, (1438), 1414 states have call successors, (1438) [2021-11-20 05:43:00,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6502 states to 6502 states and 8672 transitions. [2021-11-20 05:43:00,165 INFO L78 Accepts]: Start accepts. Automaton has 6502 states and 8672 transitions. Word has length 100 [2021-11-20 05:43:00,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:43:00,166 INFO L470 AbstractCegarLoop]: Abstraction has 6502 states and 8672 transitions. [2021-11-20 05:43:00,166 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) [2021-11-20 05:43:00,166 INFO L276 IsEmpty]: Start isEmpty. Operand 6502 states and 8672 transitions. [2021-11-20 05:43:00,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2021-11-20 05:43:00,169 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:43:00,170 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 11, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:43:00,170 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-11-20 05:43:00,170 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2021-11-20 05:43:00,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:43:00,171 INFO L85 PathProgramCache]: Analyzing trace with hash -1855653926, now seen corresponding path program 1 times [2021-11-20 05:43:00,171 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:43:00,171 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1025610593] [2021-11-20 05:43:00,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:43:00,172 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:43:00,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:43:00,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-20 05:43:00,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:43:00,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-11-20 05:43:00,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:43:00,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-11-20 05:43:00,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:43:00,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-11-20 05:43:00,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:43:00,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:43:00,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:43:00,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-20 05:43:00,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:43:00,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-11-20 05:43:00,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:43:00,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2021-11-20 05:43:00,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:43:00,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-11-20 05:43:00,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:43:00,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:43:00,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:43:00,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 05:43:00,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:43:00,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-20 05:43:00,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:43:00,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-11-20 05:43:00,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:43:00,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:43:00,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:43:00,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 05:43:00,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:43:00,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-20 05:43:00,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:43:00,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-11-20 05:43:00,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:43:00,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:43:00,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:43:00,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 05:43:00,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:43:00,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-20 05:43:00,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:43:00,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-11-20 05:43:00,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:43:00,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:43:00,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:43:00,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 05:43:00,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:43:00,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-20 05:43:00,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:43:00,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-11-20 05:43:00,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:43:00,769 INFO L134 CoverageAnalysis]: Checked inductivity of 295 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 295 trivial. 0 not checked. [2021-11-20 05:43:00,769 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:43:00,769 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1025610593] [2021-11-20 05:43:00,769 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1025610593] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:43:00,770 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:43:00,770 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-20 05:43:00,770 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [136729962] [2021-11-20 05:43:00,770 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:43:00,771 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-20 05:43:00,771 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:43:00,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-20 05:43:00,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-11-20 05:43:00,772 INFO L87 Difference]: Start difference. First operand 6502 states and 8672 transitions. Second operand has 8 states, 8 states have (on average 5.375) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-11-20 05:43:06,252 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-20 05:43:08,385 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:43:10,519 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-20 05:43:19,218 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:43:21,227 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:43:23,240 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:43:26,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:43:26,128 INFO L93 Difference]: Finished difference Result 7463 states and 9892 transitions. [2021-11-20 05:43:26,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-20 05:43:26,129 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.375) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 147 [2021-11-20 05:43:26,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:43:26,152 INFO L225 Difference]: With dead ends: 7463 [2021-11-20 05:43:26,152 INFO L226 Difference]: Without dead ends: 7461 [2021-11-20 05:43:26,155 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=102, Invalid=204, Unknown=0, NotChecked=0, Total=306 [2021-11-20 05:43:26,155 INFO L933 BasicCegarLoop]: 2096 mSDtfsCounter, 4354 mSDsluCounter, 4288 mSDsCounter, 0 mSdLazyCounter, 3837 mSolverCounterSat, 2202 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4547 SdHoareTripleChecker+Valid, 6384 SdHoareTripleChecker+Invalid, 6045 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2202 IncrementalHoareTripleChecker+Valid, 3837 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 24.4s IncrementalHoareTripleChecker+Time [2021-11-20 05:43:26,156 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4547 Valid, 6384 Invalid, 6045 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2202 Valid, 3837 Invalid, 6 Unknown, 0 Unchecked, 24.4s Time] [2021-11-20 05:43:26,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7461 states. [2021-11-20 05:43:26,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7461 to 7027. [2021-11-20 05:43:26,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7027 states, 4963 states have (on average 1.2448116058835381) internal successors, (6178), 5094 states have internal predecessors, (6178), 1506 states have call successors, (1506), 535 states have call predecessors, (1506), 534 states have return successors, (1528), 1478 states have call predecessors, (1528), 1504 states have call successors, (1528) [2021-11-20 05:43:26,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7027 states to 7027 states and 9212 transitions. [2021-11-20 05:43:26,680 INFO L78 Accepts]: Start accepts. Automaton has 7027 states and 9212 transitions. Word has length 147 [2021-11-20 05:43:26,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:43:26,681 INFO L470 AbstractCegarLoop]: Abstraction has 7027 states and 9212 transitions. [2021-11-20 05:43:26,681 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.375) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-11-20 05:43:26,681 INFO L276 IsEmpty]: Start isEmpty. Operand 7027 states and 9212 transitions. [2021-11-20 05:43:26,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2021-11-20 05:43:26,684 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:43:26,684 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] [2021-11-20 05:43:26,684 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-11-20 05:43:26,685 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_linux_kernel_rcu_update_lock_bh_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2021-11-20 05:43:26,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:43:26,685 INFO L85 PathProgramCache]: Analyzing trace with hash 1613407075, now seen corresponding path program 1 times [2021-11-20 05:43:26,685 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:43:26,686 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1341669126] [2021-11-20 05:43:26,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:43:26,686 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:43:26,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:43:26,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-20 05:43:26,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:43:26,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-11-20 05:43:26,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:43:26,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-11-20 05:43:26,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:43:26,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-11-20 05:43:26,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:43:26,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:43:26,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:43:26,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-20 05:43:26,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:43:26,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-11-20 05:43:26,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:43:27,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-11-20 05:43:27,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:43:27,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-11-20 05:43:27,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:43:27,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-20 05:43:27,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:43:27,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-11-20 05:43:27,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:43:27,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-11-20 05:43:27,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:43:27,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-11-20 05:43:27,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:43:27,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-20 05:43:27,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:43:27,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-11-20 05:43:27,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:43:27,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-11-20 05:43:27,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:43:27,099 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-20 05:43:27,100 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:43:27,100 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1341669126] [2021-11-20 05:43:27,100 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1341669126] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:43:27,100 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:43:27,100 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-20 05:43:27,101 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1860075878] [2021-11-20 05:43:27,101 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:43:27,101 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-20 05:43:27,101 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:43:27,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-20 05:43:27,102 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-20 05:43:27,102 INFO L87 Difference]: Start difference. First operand 7027 states and 9212 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) [2021-11-20 05:43:33,923 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:43:35,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:43:35,581 INFO L93 Difference]: Finished difference Result 7027 states and 9212 transitions. [2021-11-20 05:43:35,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-20 05:43:35,594 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 [2021-11-20 05:43:35,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:43:35,612 INFO L225 Difference]: With dead ends: 7027 [2021-11-20 05:43:35,612 INFO L226 Difference]: Without dead ends: 7025 [2021-11-20 05:43:35,615 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2021-11-20 05:43:35,616 INFO L933 BasicCegarLoop]: 2065 mSDtfsCounter, 3445 mSDsluCounter, 2408 mSDsCounter, 0 mSdLazyCounter, 1618 mSolverCounterSat, 1390 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3635 SdHoareTripleChecker+Valid, 4473 SdHoareTripleChecker+Invalid, 3009 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1390 IncrementalHoareTripleChecker+Valid, 1618 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.9s IncrementalHoareTripleChecker+Time [2021-11-20 05:43:35,616 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3635 Valid, 4473 Invalid, 3009 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1390 Valid, 1618 Invalid, 1 Unknown, 0 Unchecked, 7.9s Time] [2021-11-20 05:43:35,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7025 states. [2021-11-20 05:43:36,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7025 to 7025. [2021-11-20 05:43:36,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7025 states, 4962 states have (on average 1.2446594115276097) internal successors, (6176), 5092 states have internal predecessors, (6176), 1506 states have call successors, (1506), 535 states have call predecessors, (1506), 534 states have return successors, (1528), 1478 states have call predecessors, (1528), 1504 states have call successors, (1528) [2021-11-20 05:43:36,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7025 states to 7025 states and 9210 transitions. [2021-11-20 05:43:36,175 INFO L78 Accepts]: Start accepts. Automaton has 7025 states and 9210 transitions. Word has length 106 [2021-11-20 05:43:36,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:43:36,175 INFO L470 AbstractCegarLoop]: Abstraction has 7025 states and 9210 transitions. [2021-11-20 05:43:36,176 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) [2021-11-20 05:43:36,176 INFO L276 IsEmpty]: Start isEmpty. Operand 7025 states and 9210 transitions. [2021-11-20 05:43:36,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2021-11-20 05:43:36,179 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:43:36,179 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:43:36,179 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-11-20 05:43:36,179 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_linux_kernel_rcu_update_lock_sched_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2021-11-20 05:43:36,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:43:36,180 INFO L85 PathProgramCache]: Analyzing trace with hash 1782742789, now seen corresponding path program 1 times [2021-11-20 05:43:36,180 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:43:36,180 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [892234850] [2021-11-20 05:43:36,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:43:36,181 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:43:36,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:43:36,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-20 05:43:36,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:43:36,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-11-20 05:43:36,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:43:36,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-11-20 05:43:36,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:43:36,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-11-20 05:43:36,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:43:36,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:43:36,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:43:36,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-20 05:43:36,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:43:36,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-11-20 05:43:36,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:43:36,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-11-20 05:43:36,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:43:36,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-11-20 05:43:36,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:43:36,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-20 05:43:36,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:43:36,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-11-20 05:43:36,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:43:36,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-11-20 05:43:36,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:43:36,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-11-20 05:43:36,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:43:36,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-20 05:43:36,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:43:36,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-11-20 05:43:36,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:43:36,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-11-20 05:43:36,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:43:36,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-20 05:43:36,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:43:36,612 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-20 05:43:36,613 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:43:36,613 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [892234850] [2021-11-20 05:43:36,616 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [892234850] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:43:36,616 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:43:36,616 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-20 05:43:36,616 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1155329590] [2021-11-20 05:43:36,617 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:43:36,617 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-20 05:43:36,617 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:43:36,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-20 05:43:36,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-20 05:43:36,618 INFO L87 Difference]: Start difference. First operand 7025 states and 9210 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) [2021-11-20 05:43:40,599 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-20 05:43:43,307 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-20 05:43:45,433 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-20 05:43:49,443 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:43:52,014 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-20 05:43:54,164 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-20 05:43:56,520 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:43:58,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:43:58,007 INFO L93 Difference]: Finished difference Result 7025 states and 9210 transitions. [2021-11-20 05:43:58,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-20 05:43:58,008 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 [2021-11-20 05:43:58,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:43:58,032 INFO L225 Difference]: With dead ends: 7025 [2021-11-20 05:43:58,033 INFO L226 Difference]: Without dead ends: 7023 [2021-11-20 05:43:58,037 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2021-11-20 05:43:58,037 INFO L933 BasicCegarLoop]: 2063 mSDtfsCounter, 3439 mSDsluCounter, 2408 mSDsCounter, 0 mSdLazyCounter, 1610 mSolverCounterSat, 1390 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3628 SdHoareTripleChecker+Valid, 4471 SdHoareTripleChecker+Invalid, 3007 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1390 IncrementalHoareTripleChecker+Valid, 1610 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.8s IncrementalHoareTripleChecker+Time [2021-11-20 05:43:58,038 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3628 Valid, 4471 Invalid, 3007 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1390 Valid, 1610 Invalid, 7 Unknown, 0 Unchecked, 20.8s Time] [2021-11-20 05:43:58,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7023 states. [2021-11-20 05:43:58,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7023 to 7023. [2021-11-20 05:43:58,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7023 states, 4961 states have (on average 1.2445071558153598) internal successors, (6174), 5090 states have internal predecessors, (6174), 1506 states have call successors, (1506), 535 states have call predecessors, (1506), 534 states have return successors, (1528), 1478 states have call predecessors, (1528), 1504 states have call successors, (1528) [2021-11-20 05:43:58,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7023 states to 7023 states and 9208 transitions. [2021-11-20 05:43:58,667 INFO L78 Accepts]: Start accepts. Automaton has 7023 states and 9208 transitions. Word has length 112 [2021-11-20 05:43:58,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:43:58,668 INFO L470 AbstractCegarLoop]: Abstraction has 7023 states and 9208 transitions. [2021-11-20 05:43:58,668 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) [2021-11-20 05:43:58,668 INFO L276 IsEmpty]: Start isEmpty. Operand 7023 states and 9208 transitions. [2021-11-20 05:43:58,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2021-11-20 05:43:58,672 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:43:58,673 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 11, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:43:58,673 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-11-20 05:43:58,673 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2021-11-20 05:43:58,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:43:58,674 INFO L85 PathProgramCache]: Analyzing trace with hash -1112358725, now seen corresponding path program 1 times [2021-11-20 05:43:58,674 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:43:58,674 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [232878616] [2021-11-20 05:43:58,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:43:58,674 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:43:58,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:43:58,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-20 05:43:58,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:43:58,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-11-20 05:43:58,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:43:58,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-11-20 05:43:58,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:43:58,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-11-20 05:43:58,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:43:58,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:43:58,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:43:58,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-20 05:43:58,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:43:58,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-11-20 05:43:58,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:43:59,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2021-11-20 05:43:59,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:43:59,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-11-20 05:43:59,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:43:59,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:43:59,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:43:59,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 05:43:59,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:43:59,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-20 05:43:59,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:43:59,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-11-20 05:43:59,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:43:59,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:43:59,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:43:59,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 05:43:59,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:43:59,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-20 05:43:59,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:43:59,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-11-20 05:43:59,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:43:59,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:43:59,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:43:59,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 05:43:59,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:43:59,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-20 05:43:59,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:43:59,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-11-20 05:43:59,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:43:59,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:43:59,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:43:59,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 05:43:59,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:43:59,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-20 05:43:59,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:43:59,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-11-20 05:43:59,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:43:59,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-11-20 05:43:59,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:43:59,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:43:59,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:43:59,280 INFO L134 CoverageAnalysis]: Checked inductivity of 297 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 295 trivial. 0 not checked. [2021-11-20 05:43:59,280 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:43:59,280 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [232878616] [2021-11-20 05:43:59,280 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [232878616] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:43:59,281 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:43:59,281 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-11-20 05:43:59,281 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1415882629] [2021-11-20 05:43:59,281 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:43:59,283 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-20 05:43:59,283 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:43:59,284 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-20 05:43:59,284 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-11-20 05:43:59,284 INFO L87 Difference]: Start difference. First operand 7023 states and 9208 transitions. Second operand has 9 states, 9 states have (on average 5.666666666666667) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (20), 7 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-11-20 05:44:05,205 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-20 05:44:07,390 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-20 05:44:09,632 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-20 05:44:11,827 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.19s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:44:13,968 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-20 05:44:17,349 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:44:19,482 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:44:22,386 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-20 05:44:24,524 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:44:31,745 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:44:33,779 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:44:35,798 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:44:38,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:44:38,712 INFO L93 Difference]: Finished difference Result 7896 states and 10347 transitions. [2021-11-20 05:44:38,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-20 05:44:38,713 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.666666666666667) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (20), 7 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 159 [2021-11-20 05:44:38,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:44:38,740 INFO L225 Difference]: With dead ends: 7896 [2021-11-20 05:44:38,740 INFO L226 Difference]: Without dead ends: 7894 [2021-11-20 05:44:38,746 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=113, Invalid=229, Unknown=0, NotChecked=0, Total=342 [2021-11-20 05:44:38,747 INFO L933 BasicCegarLoop]: 2061 mSDtfsCounter, 5427 mSDsluCounter, 4873 mSDsCounter, 0 mSdLazyCounter, 3935 mSolverCounterSat, 2856 mSolverCounterUnsat, 12 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 35.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5622 SdHoareTripleChecker+Valid, 6934 SdHoareTripleChecker+Invalid, 6803 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2856 IncrementalHoareTripleChecker+Valid, 3935 IncrementalHoareTripleChecker+Invalid, 12 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 38.4s IncrementalHoareTripleChecker+Time [2021-11-20 05:44:38,747 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5622 Valid, 6934 Invalid, 6803 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2856 Valid, 3935 Invalid, 12 Unknown, 0 Unchecked, 38.4s Time] [2021-11-20 05:44:38,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7894 states. [2021-11-20 05:44:39,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7894 to 7324. [2021-11-20 05:44:39,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7324 states, 5158 states have (on average 1.239046141915471) internal successors, (6391), 5288 states have internal predecessors, (6391), 1553 states have call successors, (1553), 592 states have call predecessors, (1553), 591 states have return successors, (1575), 1524 states have call predecessors, (1575), 1551 states have call successors, (1575) [2021-11-20 05:44:39,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7324 states to 7324 states and 9519 transitions. [2021-11-20 05:44:39,295 INFO L78 Accepts]: Start accepts. Automaton has 7324 states and 9519 transitions. Word has length 159 [2021-11-20 05:44:39,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:44:39,296 INFO L470 AbstractCegarLoop]: Abstraction has 7324 states and 9519 transitions. [2021-11-20 05:44:39,296 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.666666666666667) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (20), 7 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-11-20 05:44:39,297 INFO L276 IsEmpty]: Start isEmpty. Operand 7324 states and 9519 transitions. [2021-11-20 05:44:39,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2021-11-20 05:44:39,300 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:44:39,301 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 11, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:44:39,301 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-11-20 05:44:39,301 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2021-11-20 05:44:39,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:44:39,302 INFO L85 PathProgramCache]: Analyzing trace with hash 1114967044, now seen corresponding path program 1 times [2021-11-20 05:44:39,302 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:44:39,302 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1602975086] [2021-11-20 05:44:39,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:44:39,303 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:44:39,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:44:39,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-20 05:44:39,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:44:39,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-11-20 05:44:39,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:44:39,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-11-20 05:44:39,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:44:39,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-11-20 05:44:39,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:44:39,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:44:39,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:44:39,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-20 05:44:39,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:44:39,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-11-20 05:44:39,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:44:39,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2021-11-20 05:44:39,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:44:39,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-11-20 05:44:39,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:44:39,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:44:39,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:44:39,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 05:44:39,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:44:39,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-20 05:44:39,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:44:39,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-11-20 05:44:39,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:44:39,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:44:39,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:44:39,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 05:44:39,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:44:39,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-20 05:44:39,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:44:39,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-11-20 05:44:39,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:44:40,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:44:40,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:44:40,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 05:44:40,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:44:40,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-20 05:44:40,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:44:40,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-11-20 05:44:40,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:44:40,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:44:40,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:44:40,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 05:44:40,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:44:40,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-20 05:44:40,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:44:40,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-11-20 05:44:40,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:44:40,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-11-20 05:44:40,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:44:40,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:44:40,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:44:40,134 INFO L134 CoverageAnalysis]: Checked inductivity of 295 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 295 trivial. 0 not checked. [2021-11-20 05:44:40,134 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:44:40,134 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1602975086] [2021-11-20 05:44:40,135 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1602975086] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:44:40,135 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:44:40,135 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-11-20 05:44:40,135 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1437837806] [2021-11-20 05:44:40,135 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:44:40,137 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-20 05:44:40,138 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:44:40,138 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-20 05:44:40,138 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-11-20 05:44:40,139 INFO L87 Difference]: Start difference. First operand 7324 states and 9519 transitions. Second operand has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (20), 7 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 1 states have call successors, (18) [2021-11-20 05:44:46,802 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-20 05:44:48,983 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-20 05:44:51,142 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:44:55,807 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:44:57,954 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:45:04,939 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:45:08,075 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:45:10,261 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.19s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:45:12,435 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:45:14,697 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:45:16,915 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.22s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:45:19,119 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.20s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:45:21,741 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:45:23,754 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:45:25,786 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:45:27,804 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:45:30,286 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:45:32,416 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:45:34,547 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:45:37,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:45:37,584 INFO L93 Difference]: Finished difference Result 7758 states and 10190 transitions. [2021-11-20 05:45:37,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-20 05:45:37,585 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (20), 7 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 1 states have call successors, (18) Word has length 160 [2021-11-20 05:45:37,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:45:37,609 INFO L225 Difference]: With dead ends: 7758 [2021-11-20 05:45:37,610 INFO L226 Difference]: Without dead ends: 7756 [2021-11-20 05:45:37,614 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=107, Invalid=235, Unknown=0, NotChecked=0, Total=342 [2021-11-20 05:45:37,615 INFO L933 BasicCegarLoop]: 2173 mSDtfsCounter, 3546 mSDsluCounter, 5608 mSDsCounter, 0 mSdLazyCounter, 5452 mSolverCounterSat, 2438 mSolverCounterUnsat, 19 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 52.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3559 SdHoareTripleChecker+Valid, 7781 SdHoareTripleChecker+Invalid, 7909 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2438 IncrementalHoareTripleChecker+Valid, 5452 IncrementalHoareTripleChecker+Invalid, 19 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 56.3s IncrementalHoareTripleChecker+Time [2021-11-20 05:45:37,616 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3559 Valid, 7781 Invalid, 7909 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2438 Valid, 5452 Invalid, 19 Unknown, 0 Unchecked, 56.3s Time] [2021-11-20 05:45:37,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7756 states. [2021-11-20 05:45:38,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7756 to 7324. [2021-11-20 05:45:38,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7324 states, 5158 states have (on average 1.2382706475378054) internal successors, (6387), 5288 states have internal predecessors, (6387), 1553 states have call successors, (1553), 592 states have call predecessors, (1553), 591 states have return successors, (1575), 1524 states have call predecessors, (1575), 1551 states have call successors, (1575) [2021-11-20 05:45:38,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7324 states to 7324 states and 9515 transitions. [2021-11-20 05:45:38,101 INFO L78 Accepts]: Start accepts. Automaton has 7324 states and 9515 transitions. Word has length 160 [2021-11-20 05:45:38,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:45:38,102 INFO L470 AbstractCegarLoop]: Abstraction has 7324 states and 9515 transitions. [2021-11-20 05:45:38,102 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (20), 7 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 1 states have call successors, (18) [2021-11-20 05:45:38,102 INFO L276 IsEmpty]: Start isEmpty. Operand 7324 states and 9515 transitions. [2021-11-20 05:45:38,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2021-11-20 05:45:38,108 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:45:38,108 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] [2021-11-20 05:45:38,108 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-11-20 05:45:38,108 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2021-11-20 05:45:38,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:45:38,109 INFO L85 PathProgramCache]: Analyzing trace with hash 1350917253, now seen corresponding path program 1 times [2021-11-20 05:45:38,109 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:45:38,109 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1108620542] [2021-11-20 05:45:38,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:45:38,110 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:45:38,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:45:38,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-20 05:45:38,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:45:38,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-11-20 05:45:38,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:45:38,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-11-20 05:45:38,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:45:38,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-11-20 05:45:38,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:45:38,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:45:38,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:45:38,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-20 05:45:38,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:45:38,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-11-20 05:45:38,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:45:38,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-11-20 05:45:38,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:45:38,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-11-20 05:45:38,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:45:38,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-20 05:45:38,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:45:38,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-11-20 05:45:38,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:45:38,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-11-20 05:45:38,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:45:38,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-11-20 05:45:38,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:45:38,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-20 05:45:38,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:45:38,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-11-20 05:45:38,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:45:38,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-11-20 05:45:38,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:45:38,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-20 05:45:38,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:45:38,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2021-11-20 05:45:38,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:45:38,425 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-20 05:45:38,425 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:45:38,425 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1108620542] [2021-11-20 05:45:38,426 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1108620542] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:45:38,426 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:45:38,426 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-20 05:45:38,427 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1591123066] [2021-11-20 05:45:38,427 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:45:38,429 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-20 05:45:38,429 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:45:38,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-20 05:45:38,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-20 05:45:38,430 INFO L87 Difference]: Start difference. First operand 7324 states and 9515 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) [2021-11-20 05:45:45,165 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-20 05:45:47,328 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-20 05:45:49,729 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:45:51,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:45:51,265 INFO L93 Difference]: Finished difference Result 7324 states and 9515 transitions. [2021-11-20 05:45:51,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-20 05:45:51,277 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 [2021-11-20 05:45:51,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:45:51,295 INFO L225 Difference]: With dead ends: 7324 [2021-11-20 05:45:51,295 INFO L226 Difference]: Without dead ends: 7322 [2021-11-20 05:45:51,298 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2021-11-20 05:45:51,298 INFO L933 BasicCegarLoop]: 2061 mSDtfsCounter, 3433 mSDsluCounter, 2408 mSDsCounter, 0 mSdLazyCounter, 1612 mSolverCounterSat, 1390 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3621 SdHoareTripleChecker+Valid, 4469 SdHoareTripleChecker+Invalid, 3005 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1390 IncrementalHoareTripleChecker+Valid, 1612 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.2s IncrementalHoareTripleChecker+Time [2021-11-20 05:45:51,299 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3621 Valid, 4469 Invalid, 3005 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1390 Valid, 1612 Invalid, 3 Unknown, 0 Unchecked, 12.2s Time] [2021-11-20 05:45:51,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7322 states. [2021-11-20 05:45:51,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7322 to 7322. [2021-11-20 05:45:51,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7322 states, 5157 states have (on average 1.2381229396936204) internal successors, (6385), 5286 states have internal predecessors, (6385), 1553 states have call successors, (1553), 592 states have call predecessors, (1553), 591 states have return successors, (1575), 1524 states have call predecessors, (1575), 1551 states have call successors, (1575) [2021-11-20 05:45:51,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7322 states to 7322 states and 9513 transitions. [2021-11-20 05:45:51,767 INFO L78 Accepts]: Start accepts. Automaton has 7322 states and 9513 transitions. Word has length 118 [2021-11-20 05:45:51,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:45:51,767 INFO L470 AbstractCegarLoop]: Abstraction has 7322 states and 9513 transitions. [2021-11-20 05:45:51,767 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) [2021-11-20 05:45:51,768 INFO L276 IsEmpty]: Start isEmpty. Operand 7322 states and 9513 transitions. [2021-11-20 05:45:51,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2021-11-20 05:45:51,770 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:45:51,771 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] [2021-11-20 05:45:51,771 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-11-20 05:45:51,771 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ldv_linux_kernel_rcu_srcu_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2021-11-20 05:45:51,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:45:51,771 INFO L85 PathProgramCache]: Analyzing trace with hash -2110545786, now seen corresponding path program 1 times [2021-11-20 05:45:51,772 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:45:51,772 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1341568863] [2021-11-20 05:45:51,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:45:51,772 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:45:51,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:45:51,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-20 05:45:51,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:45:51,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-11-20 05:45:51,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:45:51,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-11-20 05:45:51,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:45:51,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-11-20 05:45:51,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:45:51,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:45:51,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:45:51,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-20 05:45:51,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:45:51,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-11-20 05:45:51,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:45:52,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-11-20 05:45:52,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:45:52,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-11-20 05:45:52,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:45:52,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-20 05:45:52,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:45:52,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-11-20 05:45:52,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:45:52,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-11-20 05:45:52,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:45:52,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-11-20 05:45:52,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:45:52,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-20 05:45:52,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:45:52,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-11-20 05:45:52,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:45:52,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-11-20 05:45:52,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:45:52,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-20 05:45:52,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:45:52,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2021-11-20 05:45:52,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:45:52,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-11-20 05:45:52,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:45:52,093 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-20 05:45:52,094 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:45:52,094 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1341568863] [2021-11-20 05:45:52,094 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1341568863] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:45:52,094 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:45:52,094 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-20 05:45:52,095 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [643044508] [2021-11-20 05:45:52,095 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:45:52,095 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-20 05:45:52,095 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:45:52,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-20 05:45:52,096 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-20 05:45:52,096 INFO L87 Difference]: Start difference. First operand 7322 states and 9513 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) [2021-11-20 05:45:58,693 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:46:00,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:46:00,212 INFO L93 Difference]: Finished difference Result 7322 states and 9513 transitions. [2021-11-20 05:46:00,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-20 05:46:00,213 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 [2021-11-20 05:46:00,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:46:00,228 INFO L225 Difference]: With dead ends: 7322 [2021-11-20 05:46:00,228 INFO L226 Difference]: Without dead ends: 7320 [2021-11-20 05:46:00,231 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2021-11-20 05:46:00,232 INFO L933 BasicCegarLoop]: 2059 mSDtfsCounter, 3427 mSDsluCounter, 2408 mSDsCounter, 0 mSdLazyCounter, 1612 mSolverCounterSat, 1390 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3614 SdHoareTripleChecker+Valid, 4467 SdHoareTripleChecker+Invalid, 3003 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1390 IncrementalHoareTripleChecker+Valid, 1612 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.5s IncrementalHoareTripleChecker+Time [2021-11-20 05:46:00,232 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3614 Valid, 4467 Invalid, 3003 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1390 Valid, 1612 Invalid, 1 Unknown, 0 Unchecked, 7.5s Time] [2021-11-20 05:46:00,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7320 states. [2021-11-20 05:46:00,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7320 to 7320. [2021-11-20 05:46:00,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7320 states, 5156 states have (on average 1.2379751745539178) internal successors, (6383), 5284 states have internal predecessors, (6383), 1553 states have call successors, (1553), 592 states have call predecessors, (1553), 591 states have return successors, (1575), 1524 states have call predecessors, (1575), 1551 states have call successors, (1575) [2021-11-20 05:46:00,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7320 states to 7320 states and 9511 transitions. [2021-11-20 05:46:00,711 INFO L78 Accepts]: Start accepts. Automaton has 7320 states and 9511 transitions. Word has length 124 [2021-11-20 05:46:00,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:46:00,711 INFO L470 AbstractCegarLoop]: Abstraction has 7320 states and 9511 transitions. [2021-11-20 05:46:00,711 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) [2021-11-20 05:46:00,711 INFO L276 IsEmpty]: Start isEmpty. Operand 7320 states and 9511 transitions. [2021-11-20 05:46:00,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2021-11-20 05:46:00,715 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:46:00,715 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 11, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:46:00,715 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-11-20 05:46:00,716 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2021-11-20 05:46:00,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:46:00,716 INFO L85 PathProgramCache]: Analyzing trace with hash 879317444, now seen corresponding path program 1 times [2021-11-20 05:46:00,716 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:46:00,717 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2048580885] [2021-11-20 05:46:00,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:46:00,717 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:46:00,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:46:00,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-20 05:46:00,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:46:00,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-11-20 05:46:01,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:46:01,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-11-20 05:46:01,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:46:01,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-11-20 05:46:01,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:46:01,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:46:01,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:46:01,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-20 05:46:01,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:46:01,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-11-20 05:46:01,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:46:01,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2021-11-20 05:46:01,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:46:01,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-11-20 05:46:01,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:46:01,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:46:01,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:46:01,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 05:46:01,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:46:01,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-20 05:46:01,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:46:01,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-11-20 05:46:01,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:46:01,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:46:01,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:46:01,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 05:46:01,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:46:01,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-20 05:46:01,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:46:01,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-11-20 05:46:01,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:46:01,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:46:01,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:46:01,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 05:46:01,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:46:01,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-20 05:46:01,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:46:01,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-11-20 05:46:01,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:46:01,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:46:01,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:46:01,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 05:46:01,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:46:01,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-20 05:46:01,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:46:01,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-11-20 05:46:01,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:46:01,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-11-20 05:46:01,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:46:01,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:46:01,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:46:01,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-11-20 05:46:01,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:46:01,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:46:01,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:46:01,446 INFO L134 CoverageAnalysis]: Checked inductivity of 299 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 299 trivial. 0 not checked. [2021-11-20 05:46:01,446 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:46:01,446 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2048580885] [2021-11-20 05:46:01,447 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2048580885] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:46:01,447 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:46:01,447 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-20 05:46:01,447 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [203970248] [2021-11-20 05:46:01,447 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:46:01,448 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-20 05:46:01,448 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:46:01,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-20 05:46:01,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-11-20 05:46:01,449 INFO L87 Difference]: Start difference. First operand 7320 states and 9511 transitions. Second operand has 10 states, 10 states have (on average 5.7) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (22), 8 states have call predecessors, (22), 2 states have return successors, (20), 2 states have call predecessors, (20), 1 states have call successors, (20) [2021-11-20 05:46:16,632 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:46:18,642 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:46:20,664 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:46:22,675 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:46:26,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:46:26,495 INFO L93 Difference]: Finished difference Result 7752 states and 10181 transitions. [2021-11-20 05:46:26,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-20 05:46:26,495 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.7) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (22), 8 states have call predecessors, (22), 2 states have return successors, (20), 2 states have call predecessors, (20), 1 states have call successors, (20) Word has length 172 [2021-11-20 05:46:26,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:46:26,510 INFO L225 Difference]: With dead ends: 7752 [2021-11-20 05:46:26,510 INFO L226 Difference]: Without dead ends: 7750 [2021-11-20 05:46:26,513 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=129, Invalid=291, Unknown=0, NotChecked=0, Total=420 [2021-11-20 05:46:26,514 INFO L933 BasicCegarLoop]: 2169 mSDtfsCounter, 4403 mSDsluCounter, 6249 mSDsCounter, 0 mSdLazyCounter, 5627 mSolverCounterSat, 3045 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4408 SdHoareTripleChecker+Valid, 8418 SdHoareTripleChecker+Invalid, 8676 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3045 IncrementalHoareTripleChecker+Valid, 5627 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 23.9s IncrementalHoareTripleChecker+Time [2021-11-20 05:46:26,514 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4408 Valid, 8418 Invalid, 8676 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3045 Valid, 5627 Invalid, 4 Unknown, 0 Unchecked, 23.9s Time] [2021-11-20 05:46:26,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7750 states. [2021-11-20 05:46:26,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7750 to 7320. [2021-11-20 05:46:26,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7320 states, 5156 states have (on average 1.236423584173778) internal successors, (6375), 5284 states have internal predecessors, (6375), 1553 states have call successors, (1553), 592 states have call predecessors, (1553), 591 states have return successors, (1575), 1524 states have call predecessors, (1575), 1551 states have call successors, (1575) [2021-11-20 05:46:26,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7320 states to 7320 states and 9503 transitions. [2021-11-20 05:46:26,970 INFO L78 Accepts]: Start accepts. Automaton has 7320 states and 9503 transitions. Word has length 172 [2021-11-20 05:46:26,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:46:26,970 INFO L470 AbstractCegarLoop]: Abstraction has 7320 states and 9503 transitions. [2021-11-20 05:46:26,970 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.7) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (22), 8 states have call predecessors, (22), 2 states have return successors, (20), 2 states have call predecessors, (20), 1 states have call successors, (20) [2021-11-20 05:46:26,971 INFO L276 IsEmpty]: Start isEmpty. Operand 7320 states and 9503 transitions. [2021-11-20 05:46:26,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2021-11-20 05:46:26,975 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:46:26,975 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] [2021-11-20 05:46:26,975 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-11-20 05:46:26,975 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ldv_linux_lib_idr_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2021-11-20 05:46:26,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:46:26,976 INFO L85 PathProgramCache]: Analyzing trace with hash -918574393, now seen corresponding path program 1 times [2021-11-20 05:46:26,976 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:46:26,976 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [278661230] [2021-11-20 05:46:26,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:46:26,977 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:46:27,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:46:27,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-20 05:46:27,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:46:27,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-11-20 05:46:27,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:46:27,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-11-20 05:46:27,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:46:27,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-11-20 05:46:27,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:46:27,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:46:27,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:46:27,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-20 05:46:27,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:46:27,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-11-20 05:46:27,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:46:27,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-11-20 05:46:27,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:46:27,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-11-20 05:46:27,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:46:27,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-20 05:46:27,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:46:27,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-11-20 05:46:27,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:46:27,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-11-20 05:46:27,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:46:27,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-11-20 05:46:27,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:46:27,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-20 05:46:27,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:46:27,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-11-20 05:46:27,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:46:27,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-11-20 05:46:27,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:46:27,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-20 05:46:27,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:46:27,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2021-11-20 05:46:27,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:46:27,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-11-20 05:46:27,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:46:27,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-11-20 05:46:27,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:46:27,414 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-20 05:46:27,414 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:46:27,414 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [278661230] [2021-11-20 05:46:27,415 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [278661230] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:46:27,415 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:46:27,415 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-20 05:46:27,415 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1788547180] [2021-11-20 05:46:27,415 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:46:27,416 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-20 05:46:27,417 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:46:27,417 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-20 05:46:27,417 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-20 05:46:27,418 INFO L87 Difference]: Start difference. First operand 7320 states and 9503 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) [2021-11-20 05:46:31,426 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-20 05:46:34,255 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-20 05:46:38,247 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:46:40,992 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:46:42,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:46:42,674 INFO L93 Difference]: Finished difference Result 7320 states and 9503 transitions. [2021-11-20 05:46:42,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-20 05:46:42,676 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 [2021-11-20 05:46:42,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:46:42,692 INFO L225 Difference]: With dead ends: 7320 [2021-11-20 05:46:42,692 INFO L226 Difference]: Without dead ends: 7318 [2021-11-20 05:46:42,694 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2021-11-20 05:46:42,695 INFO L933 BasicCegarLoop]: 2057 mSDtfsCounter, 3421 mSDsluCounter, 2408 mSDsCounter, 0 mSdLazyCounter, 1607 mSolverCounterSat, 1390 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3607 SdHoareTripleChecker+Valid, 4465 SdHoareTripleChecker+Invalid, 3001 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1390 IncrementalHoareTripleChecker+Valid, 1607 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.5s IncrementalHoareTripleChecker+Time [2021-11-20 05:46:42,696 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3607 Valid, 4465 Invalid, 3001 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1390 Valid, 1607 Invalid, 4 Unknown, 0 Unchecked, 14.5s Time] [2021-11-20 05:46:42,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7318 states. [2021-11-20 05:46:43,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7318 to 7318. [2021-11-20 05:46:43,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7318 states, 5155 states have (on average 1.2362754607177497) internal successors, (6373), 5282 states have internal predecessors, (6373), 1553 states have call successors, (1553), 592 states have call predecessors, (1553), 591 states have return successors, (1575), 1524 states have call predecessors, (1575), 1551 states have call successors, (1575) [2021-11-20 05:46:43,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7318 states to 7318 states and 9501 transitions. [2021-11-20 05:46:43,159 INFO L78 Accepts]: Start accepts. Automaton has 7318 states and 9501 transitions. Word has length 130 [2021-11-20 05:46:43,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:46:43,160 INFO L470 AbstractCegarLoop]: Abstraction has 7318 states and 9501 transitions. [2021-11-20 05:46:43,160 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) [2021-11-20 05:46:43,160 INFO L276 IsEmpty]: Start isEmpty. Operand 7318 states and 9501 transitions. [2021-11-20 05:46:43,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2021-11-20 05:46:43,161 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:46:43,162 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 4, 4, 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] [2021-11-20 05:46:43,162 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-11-20 05:46:43,162 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2021-11-20 05:46:43,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:46:43,162 INFO L85 PathProgramCache]: Analyzing trace with hash -1479957857, now seen corresponding path program 1 times [2021-11-20 05:46:43,162 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:46:43,162 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [478431337] [2021-11-20 05:46:43,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:46:43,163 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:46:43,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:46:43,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-20 05:46:43,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:46:43,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-11-20 05:46:43,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:46:43,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-11-20 05:46:43,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:46:43,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-11-20 05:46:43,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:46:43,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:46:43,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:46:43,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 05:46:43,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:46:43,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-20 05:46:43,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:46:43,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-20 05:46:43,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:46:43,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:46:43,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:46:43,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 05:46:43,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:46:43,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-20 05:46:43,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:46:43,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2021-11-20 05:46:43,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:46:43,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:46:43,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:46:43,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 05:46:43,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:46:43,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-20 05:46:43,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:46:43,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-11-20 05:46:43,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:46:43,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-20 05:46:43,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:46:43,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:46:43,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:46:43,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:46:43,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:46:43,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-11-20 05:46:43,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:46:43,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-11-20 05:46:43,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:46:43,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-11-20 05:46:43,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:46:43,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2021-11-20 05:46:43,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:46:43,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-11-20 05:46:43,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:46:43,585 INFO L134 CoverageAnalysis]: Checked inductivity of 231 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2021-11-20 05:46:43,585 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:46:43,586 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [478431337] [2021-11-20 05:46:43,586 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [478431337] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:46:43,586 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:46:43,586 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-20 05:46:43,587 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [522046497] [2021-11-20 05:46:43,588 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:46:43,588 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-20 05:46:43,588 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:46:43,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-20 05:46:43,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-20 05:46:43,589 INFO L87 Difference]: Start difference. First operand 7318 states and 9501 transitions. Second operand has 6 states, 6 states have (on average 10.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (22), 4 states have call predecessors, (22), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-11-20 05:46:48,931 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:46:52,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:46:52,437 INFO L93 Difference]: Finished difference Result 8162 states and 10585 transitions. [2021-11-20 05:46:52,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-20 05:46:52,438 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (22), 4 states have call predecessors, (22), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 157 [2021-11-20 05:46:52,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:46:52,455 INFO L225 Difference]: With dead ends: 8162 [2021-11-20 05:46:52,455 INFO L226 Difference]: Without dead ends: 8160 [2021-11-20 05:46:52,458 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-11-20 05:46:52,459 INFO L933 BasicCegarLoop]: 2178 mSDtfsCounter, 1983 mSDsluCounter, 4748 mSDsCounter, 0 mSdLazyCounter, 1890 mSolverCounterSat, 545 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2201 SdHoareTripleChecker+Valid, 6926 SdHoareTripleChecker+Invalid, 2436 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 545 IncrementalHoareTripleChecker+Valid, 1890 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.2s IncrementalHoareTripleChecker+Time [2021-11-20 05:46:52,459 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2201 Valid, 6926 Invalid, 2436 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [545 Valid, 1890 Invalid, 1 Unknown, 0 Unchecked, 8.2s Time] [2021-11-20 05:46:52,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8160 states. [2021-11-20 05:46:52,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8160 to 7625. [2021-11-20 05:46:52,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7625 states, 5380 states have (on average 1.2340148698884759) internal successors, (6639), 5507 states have internal predecessors, (6639), 1568 states have call successors, (1568), 659 states have call predecessors, (1568), 658 states have return successors, (1590), 1539 states have call predecessors, (1590), 1566 states have call successors, (1590) [2021-11-20 05:46:52,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7625 states to 7625 states and 9797 transitions. [2021-11-20 05:46:52,970 INFO L78 Accepts]: Start accepts. Automaton has 7625 states and 9797 transitions. Word has length 157 [2021-11-20 05:46:52,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:46:52,970 INFO L470 AbstractCegarLoop]: Abstraction has 7625 states and 9797 transitions. [2021-11-20 05:46:52,971 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (22), 4 states have call predecessors, (22), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-11-20 05:46:52,971 INFO L276 IsEmpty]: Start isEmpty. Operand 7625 states and 9797 transitions. [2021-11-20 05:46:52,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2021-11-20 05:46:52,972 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:46:52,972 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:46:52,972 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-11-20 05:46:52,973 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ldv_linux_mmc_sdio_func_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2021-11-20 05:46:52,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:46:52,973 INFO L85 PathProgramCache]: Analyzing trace with hash 986839772, now seen corresponding path program 1 times [2021-11-20 05:46:52,973 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:46:52,973 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1392859900] [2021-11-20 05:46:52,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:46:52,973 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:46:53,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:46:53,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-20 05:46:53,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:46:53,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-11-20 05:46:53,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:46:53,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-11-20 05:46:53,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:46:53,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-11-20 05:46:53,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:46:53,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:46:53,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:46:53,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-20 05:46:53,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:46:53,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-11-20 05:46:53,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:46:53,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-11-20 05:46:53,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:46:53,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-11-20 05:46:53,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:46:53,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-20 05:46:53,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:46:53,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-11-20 05:46:53,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:46:53,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-11-20 05:46:53,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:46:53,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-11-20 05:46:53,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:46:53,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-20 05:46:53,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:46:53,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-11-20 05:46:53,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:46:53,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-11-20 05:46:53,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:46:53,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-20 05:46:53,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:46:53,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2021-11-20 05:46:53,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:46:53,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-11-20 05:46:53,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:46:53,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-11-20 05:46:53,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:46:53,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-11-20 05:46:53,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:46:53,285 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-20 05:46:53,286 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:46:53,286 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1392859900] [2021-11-20 05:46:53,286 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1392859900] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:46:53,286 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:46:53,286 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-20 05:46:53,287 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [321774342] [2021-11-20 05:46:53,287 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:46:53,287 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-20 05:46:53,288 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:46:53,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-20 05:46:53,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-20 05:46:53,288 INFO L87 Difference]: Start difference. First operand 7625 states and 9797 transitions. Second operand has 6 states, 6 states have (on average 14.5) internal successors, (87), 4 states have internal predecessors, (87), 2 states have call successors, (22), 4 states have call predecessors, (22), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-11-20 05:46:59,783 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-20 05:47:02,029 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:47:03,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:47:03,614 INFO L93 Difference]: Finished difference Result 7625 states and 9797 transitions. [2021-11-20 05:47:03,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-20 05:47:03,615 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.5) internal successors, (87), 4 states have internal predecessors, (87), 2 states have call successors, (22), 4 states have call predecessors, (22), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 136 [2021-11-20 05:47:03,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:47:03,630 INFO L225 Difference]: With dead ends: 7625 [2021-11-20 05:47:03,630 INFO L226 Difference]: Without dead ends: 7623 [2021-11-20 05:47:03,632 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2021-11-20 05:47:03,633 INFO L933 BasicCegarLoop]: 2055 mSDtfsCounter, 3415 mSDsluCounter, 2408 mSDsCounter, 0 mSdLazyCounter, 1607 mSolverCounterSat, 1390 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3600 SdHoareTripleChecker+Valid, 4463 SdHoareTripleChecker+Invalid, 2999 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1390 IncrementalHoareTripleChecker+Valid, 1607 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.7s IncrementalHoareTripleChecker+Time [2021-11-20 05:47:03,633 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3600 Valid, 4463 Invalid, 2999 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1390 Valid, 1607 Invalid, 2 Unknown, 0 Unchecked, 9.7s Time] [2021-11-20 05:47:03,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7623 states. [2021-11-20 05:47:04,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7623 to 7623. [2021-11-20 05:47:04,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7623 states, 5379 states have (on average 1.2338724670013013) internal successors, (6637), 5505 states have internal predecessors, (6637), 1568 states have call successors, (1568), 659 states have call predecessors, (1568), 658 states have return successors, (1590), 1539 states have call predecessors, (1590), 1566 states have call successors, (1590) [2021-11-20 05:47:04,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7623 states to 7623 states and 9795 transitions. [2021-11-20 05:47:04,377 INFO L78 Accepts]: Start accepts. Automaton has 7623 states and 9795 transitions. Word has length 136 [2021-11-20 05:47:04,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:47:04,378 INFO L470 AbstractCegarLoop]: Abstraction has 7623 states and 9795 transitions. [2021-11-20 05:47:04,378 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.5) internal successors, (87), 4 states have internal predecessors, (87), 2 states have call successors, (22), 4 states have call predecessors, (22), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-11-20 05:47:04,378 INFO L276 IsEmpty]: Start isEmpty. Operand 7623 states and 9795 transitions. [2021-11-20 05:47:04,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2021-11-20 05:47:04,379 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:47:04,380 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:47:04,380 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-11-20 05:47:04,380 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ldv_linux_net_rtnetlink_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2021-11-20 05:47:04,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:47:04,380 INFO L85 PathProgramCache]: Analyzing trace with hash -965099567, now seen corresponding path program 1 times [2021-11-20 05:47:04,380 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:47:04,380 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1942079032] [2021-11-20 05:47:04,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:47:04,381 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:47:04,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:47:04,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-20 05:47:04,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:47:04,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-11-20 05:47:04,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:47:04,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-11-20 05:47:04,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:47:04,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-11-20 05:47:04,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:47:04,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:47:04,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:47:04,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-20 05:47:04,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:47:04,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-11-20 05:47:04,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:47:04,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-11-20 05:47:04,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:47:04,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-11-20 05:47:04,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:47:04,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-20 05:47:04,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:47:04,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-11-20 05:47:04,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:47:04,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-11-20 05:47:04,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:47:04,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-11-20 05:47:04,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:47:04,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-20 05:47:04,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:47:04,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-11-20 05:47:04,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:47:04,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-11-20 05:47:04,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:47:04,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-20 05:47:04,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:47:04,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2021-11-20 05:47:04,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:47:04,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-11-20 05:47:04,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:47:04,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-11-20 05:47:04,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:47:04,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-11-20 05:47:04,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:47:04,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-11-20 05:47:04,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:47:04,708 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-20 05:47:04,709 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:47:04,709 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1942079032] [2021-11-20 05:47:04,709 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1942079032] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:47:04,709 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:47:04,710 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-20 05:47:04,710 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [468219023] [2021-11-20 05:47:04,710 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:47:04,710 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-20 05:47:04,711 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:47:04,711 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-20 05:47:04,711 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-20 05:47:04,711 INFO L87 Difference]: Start difference. First operand 7623 states and 9795 transitions. Second operand has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (23), 4 states have call predecessors, (23), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2021-11-20 05:47:11,340 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-20 05:47:13,478 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-20 05:47:15,714 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:47:17,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:47:17,201 INFO L93 Difference]: Finished difference Result 7623 states and 9795 transitions. [2021-11-20 05:47:17,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-20 05:47:17,201 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (23), 4 states have call predecessors, (23), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 142 [2021-11-20 05:47:17,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:47:17,216 INFO L225 Difference]: With dead ends: 7623 [2021-11-20 05:47:17,216 INFO L226 Difference]: Without dead ends: 7621 [2021-11-20 05:47:17,218 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2021-11-20 05:47:17,219 INFO L933 BasicCegarLoop]: 2053 mSDtfsCounter, 3409 mSDsluCounter, 2408 mSDsCounter, 0 mSdLazyCounter, 1604 mSolverCounterSat, 1390 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3593 SdHoareTripleChecker+Valid, 4461 SdHoareTripleChecker+Invalid, 2997 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1390 IncrementalHoareTripleChecker+Valid, 1604 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.7s IncrementalHoareTripleChecker+Time [2021-11-20 05:47:17,219 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3593 Valid, 4461 Invalid, 2997 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1390 Valid, 1604 Invalid, 3 Unknown, 0 Unchecked, 11.7s Time] [2021-11-20 05:47:17,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7621 states. [2021-11-20 05:47:17,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7621 to 7621. [2021-11-20 05:47:17,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7621 states, 5378 states have (on average 1.2337300111565639) internal successors, (6635), 5503 states have internal predecessors, (6635), 1568 states have call successors, (1568), 659 states have call predecessors, (1568), 658 states have return successors, (1590), 1539 states have call predecessors, (1590), 1566 states have call successors, (1590) [2021-11-20 05:47:17,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7621 states to 7621 states and 9793 transitions. [2021-11-20 05:47:17,705 INFO L78 Accepts]: Start accepts. Automaton has 7621 states and 9793 transitions. Word has length 142 [2021-11-20 05:47:17,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:47:17,706 INFO L470 AbstractCegarLoop]: Abstraction has 7621 states and 9793 transitions. [2021-11-20 05:47:17,706 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (23), 4 states have call predecessors, (23), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2021-11-20 05:47:17,706 INFO L276 IsEmpty]: Start isEmpty. Operand 7621 states and 9793 transitions. [2021-11-20 05:47:17,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2021-11-20 05:47:17,709 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:47:17,709 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:47:17,709 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-11-20 05:47:17,710 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ldv_linux_net_sock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2021-11-20 05:47:17,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:47:17,710 INFO L85 PathProgramCache]: Analyzing trace with hash 1796441848, now seen corresponding path program 1 times [2021-11-20 05:47:17,710 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:47:17,711 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [328221128] [2021-11-20 05:47:17,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:47:17,711 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:47:17,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:47:17,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-20 05:47:17,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:47:17,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-11-20 05:47:17,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:47:17,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-11-20 05:47:17,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:47:17,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-11-20 05:47:17,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:47:17,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:47:17,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:47:17,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-20 05:47:17,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:47:17,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-11-20 05:47:17,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:47:17,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-11-20 05:47:17,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:47:17,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-11-20 05:47:17,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:47:17,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-20 05:47:17,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:47:17,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-11-20 05:47:17,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:47:17,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-11-20 05:47:17,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:47:17,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-11-20 05:47:17,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:47:17,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-20 05:47:17,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:47:17,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-11-20 05:47:17,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:47:18,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-11-20 05:47:18,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:47:18,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-20 05:47:18,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:47:18,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2021-11-20 05:47:18,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:47:18,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-11-20 05:47:18,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:47:18,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-11-20 05:47:18,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:47:18,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-11-20 05:47:18,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:47:18,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-11-20 05:47:18,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:47:18,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-11-20 05:47:18,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:47:18,066 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-20 05:47:18,066 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:47:18,067 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [328221128] [2021-11-20 05:47:18,067 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [328221128] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:47:18,067 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:47:18,067 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-20 05:47:18,067 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1324004010] [2021-11-20 05:47:18,068 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:47:18,068 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-20 05:47:18,068 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:47:18,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-20 05:47:18,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-20 05:47:18,070 INFO L87 Difference]: Start difference. First operand 7621 states and 9793 transitions. Second operand has 6 states, 6 states have (on average 15.833333333333334) internal successors, (95), 4 states have internal predecessors, (95), 2 states have call successors, (24), 4 states have call predecessors, (24), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2021-11-20 05:47:24,583 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:47:26,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:47:26,261 INFO L93 Difference]: Finished difference Result 7621 states and 9793 transitions. [2021-11-20 05:47:26,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-20 05:47:26,262 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.833333333333334) internal successors, (95), 4 states have internal predecessors, (95), 2 states have call successors, (24), 4 states have call predecessors, (24), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 148 [2021-11-20 05:47:26,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:47:26,280 INFO L225 Difference]: With dead ends: 7621 [2021-11-20 05:47:26,281 INFO L226 Difference]: Without dead ends: 7619 [2021-11-20 05:47:26,284 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2021-11-20 05:47:26,284 INFO L933 BasicCegarLoop]: 2051 mSDtfsCounter, 3403 mSDsluCounter, 2408 mSDsCounter, 0 mSdLazyCounter, 1604 mSolverCounterSat, 1390 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3586 SdHoareTripleChecker+Valid, 4459 SdHoareTripleChecker+Invalid, 2995 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1390 IncrementalHoareTripleChecker+Valid, 1604 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.4s IncrementalHoareTripleChecker+Time [2021-11-20 05:47:26,284 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3586 Valid, 4459 Invalid, 2995 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1390 Valid, 1604 Invalid, 1 Unknown, 0 Unchecked, 7.4s Time] [2021-11-20 05:47:26,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7619 states. [2021-11-20 05:47:26,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7619 to 7619. [2021-11-20 05:47:26,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7619 states, 5377 states have (on average 1.2335875023247165) internal successors, (6633), 5501 states have internal predecessors, (6633), 1568 states have call successors, (1568), 659 states have call predecessors, (1568), 658 states have return successors, (1590), 1539 states have call predecessors, (1590), 1566 states have call successors, (1590) [2021-11-20 05:47:26,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7619 states to 7619 states and 9791 transitions. [2021-11-20 05:47:26,842 INFO L78 Accepts]: Start accepts. Automaton has 7619 states and 9791 transitions. Word has length 148 [2021-11-20 05:47:26,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:47:26,842 INFO L470 AbstractCegarLoop]: Abstraction has 7619 states and 9791 transitions. [2021-11-20 05:47:26,842 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.833333333333334) internal successors, (95), 4 states have internal predecessors, (95), 2 states have call successors, (24), 4 states have call predecessors, (24), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2021-11-20 05:47:26,842 INFO L276 IsEmpty]: Start isEmpty. Operand 7619 states and 9791 transitions. [2021-11-20 05:47:26,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2021-11-20 05:47:26,845 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:47:26,846 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:47:26,846 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-11-20 05:47:26,846 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2021-11-20 05:47:26,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:47:26,847 INFO L85 PathProgramCache]: Analyzing trace with hash 1238573022, now seen corresponding path program 1 times [2021-11-20 05:47:26,847 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:47:26,847 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [473929095] [2021-11-20 05:47:26,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:47:26,848 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:47:26,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:47:26,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-20 05:47:26,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:47:27,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-11-20 05:47:27,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:47:27,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-11-20 05:47:27,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:47:27,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-11-20 05:47:27,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:47:27,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:47:27,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:47:27,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-20 05:47:27,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:47:27,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-11-20 05:47:27,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:47:27,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-11-20 05:47:27,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:47:27,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-11-20 05:47:27,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:47:27,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-20 05:47:27,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:47:27,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-11-20 05:47:27,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:47:27,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-11-20 05:47:27,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:47:27,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-11-20 05:47:27,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:47:27,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-20 05:47:27,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:47:27,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-11-20 05:47:27,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:47:27,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-11-20 05:47:27,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:47:27,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-20 05:47:27,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:47:27,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2021-11-20 05:47:27,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:47:27,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-11-20 05:47:27,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:47:27,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-11-20 05:47:27,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:47:27,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-11-20 05:47:27,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:47:27,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-11-20 05:47:27,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:47:27,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-11-20 05:47:27,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:47:27,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2021-11-20 05:47:27,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:47:27,221 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-20 05:47:27,221 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:47:27,221 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [473929095] [2021-11-20 05:47:27,222 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [473929095] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:47:27,222 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:47:27,222 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-20 05:47:27,222 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [357522071] [2021-11-20 05:47:27,222 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:47:27,223 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-20 05:47:27,223 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:47:27,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-20 05:47:27,224 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-20 05:47:27,224 INFO L87 Difference]: Start difference. First operand 7619 states and 9791 transitions. Second operand has 6 states, 6 states have (on average 16.5) internal successors, (99), 4 states have internal predecessors, (99), 2 states have call successors, (25), 4 states have call predecessors, (25), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2021-11-20 05:47:31,476 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-20 05:47:36,529 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:47:38,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:47:38,228 INFO L93 Difference]: Finished difference Result 7619 states and 9791 transitions. [2021-11-20 05:47:38,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-20 05:47:38,228 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.5) internal successors, (99), 4 states have internal predecessors, (99), 2 states have call successors, (25), 4 states have call predecessors, (25), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 154 [2021-11-20 05:47:38,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:47:38,246 INFO L225 Difference]: With dead ends: 7619 [2021-11-20 05:47:38,246 INFO L226 Difference]: Without dead ends: 7617 [2021-11-20 05:47:38,250 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2021-11-20 05:47:38,250 INFO L933 BasicCegarLoop]: 2049 mSDtfsCounter, 3397 mSDsluCounter, 2408 mSDsCounter, 0 mSdLazyCounter, 1601 mSolverCounterSat, 1390 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3579 SdHoareTripleChecker+Valid, 4457 SdHoareTripleChecker+Invalid, 2993 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1390 IncrementalHoareTripleChecker+Valid, 1601 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.2s IncrementalHoareTripleChecker+Time [2021-11-20 05:47:38,251 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3579 Valid, 4457 Invalid, 2993 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1390 Valid, 1601 Invalid, 2 Unknown, 0 Unchecked, 10.2s Time] [2021-11-20 05:47:38,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7617 states. [2021-11-20 05:47:38,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7617 to 7617. [2021-11-20 05:47:38,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7617 states, 5376 states have (on average 1.2334449404761905) internal successors, (6631), 5499 states have internal predecessors, (6631), 1568 states have call successors, (1568), 659 states have call predecessors, (1568), 658 states have return successors, (1590), 1539 states have call predecessors, (1590), 1566 states have call successors, (1590) [2021-11-20 05:47:38,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7617 states to 7617 states and 9789 transitions. [2021-11-20 05:47:38,833 INFO L78 Accepts]: Start accepts. Automaton has 7617 states and 9789 transitions. Word has length 154 [2021-11-20 05:47:38,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:47:38,833 INFO L470 AbstractCegarLoop]: Abstraction has 7617 states and 9789 transitions. [2021-11-20 05:47:38,833 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.5) internal successors, (99), 4 states have internal predecessors, (99), 2 states have call successors, (25), 4 states have call predecessors, (25), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2021-11-20 05:47:38,833 INFO L276 IsEmpty]: Start isEmpty. Operand 7617 states and 9789 transitions. [2021-11-20 05:47:38,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2021-11-20 05:47:38,837 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:47:38,837 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:47:38,838 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2021-11-20 05:47:38,838 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2021-11-20 05:47:38,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:47:38,838 INFO L85 PathProgramCache]: Analyzing trace with hash 883056991, now seen corresponding path program 1 times [2021-11-20 05:47:38,839 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:47:38,839 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [917265628] [2021-11-20 05:47:38,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:47:38,839 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:47:38,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:47:38,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-20 05:47:38,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:47:39,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-11-20 05:47:39,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:47:39,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-11-20 05:47:39,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:47:39,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-11-20 05:47:39,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:47:39,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:47:39,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:47:39,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-20 05:47:39,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:47:39,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-11-20 05:47:39,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:47:39,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-11-20 05:47:39,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:47:39,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-11-20 05:47:39,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:47:39,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-20 05:47:39,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:47:39,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-11-20 05:47:39,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:47:39,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-11-20 05:47:39,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:47:39,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-11-20 05:47:39,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:47:39,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-20 05:47:39,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:47:39,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-11-20 05:47:39,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:47:39,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-11-20 05:47:39,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:47:39,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-20 05:47:39,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:47:39,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2021-11-20 05:47:39,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:47:39,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-11-20 05:47:39,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:47:39,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-11-20 05:47:39,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:47:39,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-11-20 05:47:39,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:47:39,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-11-20 05:47:39,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:47:39,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-11-20 05:47:39,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:47:39,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2021-11-20 05:47:39,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:47:39,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2021-11-20 05:47:39,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:47:39,239 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-20 05:47:39,240 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:47:39,240 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [917265628] [2021-11-20 05:47:39,240 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [917265628] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:47:39,240 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:47:39,241 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-20 05:47:39,241 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2009534232] [2021-11-20 05:47:39,241 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:47:39,242 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-20 05:47:39,242 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:47:39,242 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-20 05:47:39,242 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-20 05:47:39,243 INFO L87 Difference]: Start difference. First operand 7617 states and 9789 transitions. Second operand has 6 states, 6 states have (on average 17.166666666666668) internal successors, (103), 4 states have internal predecessors, (103), 2 states have call successors, (26), 4 states have call predecessors, (26), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2021-11-20 05:47:43,611 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-20 05:47:45,918 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-20 05:47:50,779 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-20 05:47:52,927 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-20 05:47:55,169 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:47:56,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:47:56,743 INFO L93 Difference]: Finished difference Result 7617 states and 9789 transitions. [2021-11-20 05:47:56,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-20 05:47:56,743 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 17.166666666666668) internal successors, (103), 4 states have internal predecessors, (103), 2 states have call successors, (26), 4 states have call predecessors, (26), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 160 [2021-11-20 05:47:56,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:47:56,760 INFO L225 Difference]: With dead ends: 7617 [2021-11-20 05:47:56,760 INFO L226 Difference]: Without dead ends: 7615 [2021-11-20 05:47:56,764 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2021-11-20 05:47:56,764 INFO L933 BasicCegarLoop]: 2047 mSDtfsCounter, 3391 mSDsluCounter, 2408 mSDsCounter, 0 mSdLazyCounter, 1596 mSolverCounterSat, 1390 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3572 SdHoareTripleChecker+Valid, 4455 SdHoareTripleChecker+Invalid, 2991 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1390 IncrementalHoareTripleChecker+Valid, 1596 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.6s IncrementalHoareTripleChecker+Time [2021-11-20 05:47:56,764 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3572 Valid, 4455 Invalid, 2991 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1390 Valid, 1596 Invalid, 5 Unknown, 0 Unchecked, 16.6s Time] [2021-11-20 05:47:56,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7615 states. [2021-11-20 05:47:57,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7615 to 7615. [2021-11-20 05:47:57,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7615 states, 5375 states have (on average 1.2333023255813953) internal successors, (6629), 5497 states have internal predecessors, (6629), 1568 states have call successors, (1568), 659 states have call predecessors, (1568), 658 states have return successors, (1590), 1539 states have call predecessors, (1590), 1566 states have call successors, (1590) [2021-11-20 05:47:57,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7615 states to 7615 states and 9787 transitions. [2021-11-20 05:47:57,339 INFO L78 Accepts]: Start accepts. Automaton has 7615 states and 9787 transitions. Word has length 160 [2021-11-20 05:47:57,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:47:57,339 INFO L470 AbstractCegarLoop]: Abstraction has 7615 states and 9787 transitions. [2021-11-20 05:47:57,340 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 17.166666666666668) internal successors, (103), 4 states have internal predecessors, (103), 2 states have call successors, (26), 4 states have call predecessors, (26), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2021-11-20 05:47:57,340 INFO L276 IsEmpty]: Start isEmpty. Operand 7615 states and 9787 transitions. [2021-11-20 05:47:57,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2021-11-20 05:47:57,343 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:47:57,344 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:47:57,344 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2021-11-20 05:47:57,344 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ldv_linux_usb_urb_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2021-11-20 05:47:57,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:47:57,345 INFO L85 PathProgramCache]: Analyzing trace with hash -1353205139, now seen corresponding path program 1 times [2021-11-20 05:47:57,345 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:47:57,345 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [717462880] [2021-11-20 05:47:57,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:47:57,345 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:47:57,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:47:57,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-20 05:47:57,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:47:57,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-11-20 05:47:57,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:47:57,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-11-20 05:47:57,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:47:57,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-11-20 05:47:57,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:47:57,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:47:57,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:47:57,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-20 05:47:57,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:47:57,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-11-20 05:47:57,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:47:57,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-11-20 05:47:57,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:47:57,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-11-20 05:47:57,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:47:57,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-20 05:47:57,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:47:57,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-11-20 05:47:57,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:47:57,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-11-20 05:47:57,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:47:57,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-11-20 05:47:57,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:47:57,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-20 05:47:57,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:47:57,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-11-20 05:47:57,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:47:57,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-11-20 05:47:57,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:47:57,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-20 05:47:57,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:47:57,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2021-11-20 05:47:57,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:47:57,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-11-20 05:47:57,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:47:57,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-11-20 05:47:57,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:47:57,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-11-20 05:47:57,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:47:57,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-11-20 05:47:57,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:47:57,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-11-20 05:47:57,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:47:57,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2021-11-20 05:47:57,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:47:57,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2021-11-20 05:47:57,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:47:57,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2021-11-20 05:47:57,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:47:57,702 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-20 05:47:57,702 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:47:57,702 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [717462880] [2021-11-20 05:47:57,702 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [717462880] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:47:57,703 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:47:57,703 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-20 05:47:57,703 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [568554681] [2021-11-20 05:47:57,703 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:47:57,704 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-20 05:47:57,704 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:47:57,705 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-20 05:47:57,705 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-20 05:47:57,705 INFO L87 Difference]: Start difference. First operand 7615 states and 9787 transitions. Second operand has 6 states, 6 states have (on average 17.833333333333332) internal successors, (107), 4 states have internal predecessors, (107), 2 states have call successors, (27), 4 states have call predecessors, (27), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2021-11-20 05:48:01,329 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-20 05:48:03,721 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-20 05:48:08,497 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:48:10,896 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:48:12,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:48:12,554 INFO L93 Difference]: Finished difference Result 7615 states and 9787 transitions. [2021-11-20 05:48:12,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-20 05:48:12,556 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 17.833333333333332) internal successors, (107), 4 states have internal predecessors, (107), 2 states have call successors, (27), 4 states have call predecessors, (27), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 166 [2021-11-20 05:48:12,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:48:12,574 INFO L225 Difference]: With dead ends: 7615 [2021-11-20 05:48:12,574 INFO L226 Difference]: Without dead ends: 7451 [2021-11-20 05:48:12,587 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2021-11-20 05:48:12,588 INFO L933 BasicCegarLoop]: 2046 mSDtfsCounter, 3382 mSDsluCounter, 2408 mSDsCounter, 0 mSdLazyCounter, 1597 mSolverCounterSat, 1390 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3562 SdHoareTripleChecker+Valid, 4454 SdHoareTripleChecker+Invalid, 2991 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1390 IncrementalHoareTripleChecker+Valid, 1597 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.1s IncrementalHoareTripleChecker+Time [2021-11-20 05:48:12,588 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3562 Valid, 4454 Invalid, 2991 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1390 Valid, 1597 Invalid, 4 Unknown, 0 Unchecked, 14.1s Time] [2021-11-20 05:48:12,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7451 states. [2021-11-20 05:48:13,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7451 to 7451. [2021-11-20 05:48:13,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7451 states, 5279 states have (on average 1.2365978405000948) internal successors, (6528), 5397 states have internal predecessors, (6528), 1522 states have call successors, (1522), 639 states have call predecessors, (1522), 637 states have return successors, (1542), 1495 states have call predecessors, (1542), 1518 states have call successors, (1542) [2021-11-20 05:48:13,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7451 states to 7451 states and 9592 transitions. [2021-11-20 05:48:13,331 INFO L78 Accepts]: Start accepts. Automaton has 7451 states and 9592 transitions. Word has length 166 [2021-11-20 05:48:13,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:48:13,331 INFO L470 AbstractCegarLoop]: Abstraction has 7451 states and 9592 transitions. [2021-11-20 05:48:13,331 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 17.833333333333332) internal successors, (107), 4 states have internal predecessors, (107), 2 states have call successors, (27), 4 states have call predecessors, (27), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2021-11-20 05:48:13,332 INFO L276 IsEmpty]: Start isEmpty. Operand 7451 states and 9592 transitions. [2021-11-20 05:48:13,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2021-11-20 05:48:13,334 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:48:13,335 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:48:13,335 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2021-11-20 05:48:13,335 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2021-11-20 05:48:13,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:48:13,335 INFO L85 PathProgramCache]: Analyzing trace with hash 799963522, now seen corresponding path program 1 times [2021-11-20 05:48:13,336 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:48:13,336 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1333892054] [2021-11-20 05:48:13,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:48:13,336 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:48:13,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:13,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-20 05:48:13,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:13,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-11-20 05:48:13,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:13,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-11-20 05:48:13,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:13,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-11-20 05:48:13,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:13,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:48:13,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:13,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 05:48:13,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:13,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-20 05:48:13,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:13,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-20 05:48:13,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:13,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:48:13,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:13,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 05:48:13,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:13,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-20 05:48:13,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:13,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2021-11-20 05:48:13,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:13,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:48:13,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:13,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 05:48:13,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:13,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-20 05:48:13,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:13,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-11-20 05:48:13,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:13,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-20 05:48:13,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:13,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:48:13,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:13,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:48:13,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:13,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-11-20 05:48:13,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:13,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-11-20 05:48:13,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:13,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-11-20 05:48:13,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:13,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-11-20 05:48:13,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:13,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-11-20 05:48:13,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:13,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2021-11-20 05:48:13,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:13,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:48:13,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:13,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2021-11-20 05:48:13,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:13,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:48:13,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:13,747 INFO L134 CoverageAnalysis]: Checked inductivity of 233 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2021-11-20 05:48:13,747 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:48:13,747 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1333892054] [2021-11-20 05:48:13,748 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1333892054] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:48:13,748 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:48:13,748 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-20 05:48:13,748 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1387926846] [2021-11-20 05:48:13,748 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:48:13,749 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-20 05:48:13,749 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:48:13,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-20 05:48:13,750 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-20 05:48:13,750 INFO L87 Difference]: Start difference. First operand 7451 states and 9592 transitions. Second operand has 5 states, 5 states have (on average 17.4) internal successors, (87), 3 states have internal predecessors, (87), 3 states have call successors, (24), 4 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2021-11-20 05:48:17,890 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:48:24,163 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:48:26,628 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:48:28,702 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:48:31,040 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:48:34,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:48:34,103 INFO L93 Difference]: Finished difference Result 17602 states and 23347 transitions. [2021-11-20 05:48:34,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-20 05:48:34,104 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.4) internal successors, (87), 3 states have internal predecessors, (87), 3 states have call successors, (24), 4 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 190 [2021-11-20 05:48:34,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:48:34,132 INFO L225 Difference]: With dead ends: 17602 [2021-11-20 05:48:34,132 INFO L226 Difference]: Without dead ends: 10178 [2021-11-20 05:48:34,166 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-20 05:48:34,167 INFO L933 BasicCegarLoop]: 2777 mSDtfsCounter, 1842 mSDsluCounter, 3601 mSDsCounter, 0 mSdLazyCounter, 2404 mSolverCounterSat, 882 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2126 SdHoareTripleChecker+Valid, 6378 SdHoareTripleChecker+Invalid, 3291 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 882 IncrementalHoareTripleChecker+Valid, 2404 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.3s IncrementalHoareTripleChecker+Time [2021-11-20 05:48:34,167 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2126 Valid, 6378 Invalid, 3291 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [882 Valid, 2404 Invalid, 5 Unknown, 0 Unchecked, 19.3s Time] [2021-11-20 05:48:34,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10178 states. [2021-11-20 05:48:35,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10178 to 7467. [2021-11-20 05:48:35,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7467 states, 5291 states have (on average 1.236061236061236) internal successors, (6540), 5409 states have internal predecessors, (6540), 1526 states have call successors, (1526), 639 states have call predecessors, (1526), 637 states have return successors, (1546), 1499 states have call predecessors, (1546), 1522 states have call successors, (1546) [2021-11-20 05:48:35,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7467 states to 7467 states and 9612 transitions. [2021-11-20 05:48:35,124 INFO L78 Accepts]: Start accepts. Automaton has 7467 states and 9612 transitions. Word has length 190 [2021-11-20 05:48:35,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:48:35,125 INFO L470 AbstractCegarLoop]: Abstraction has 7467 states and 9612 transitions. [2021-11-20 05:48:35,125 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.4) internal successors, (87), 3 states have internal predecessors, (87), 3 states have call successors, (24), 4 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2021-11-20 05:48:35,125 INFO L276 IsEmpty]: Start isEmpty. Operand 7467 states and 9612 transitions. [2021-11-20 05:48:35,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2021-11-20 05:48:35,129 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:48:35,129 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 11, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:48:35,129 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2021-11-20 05:48:35,130 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2021-11-20 05:48:35,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:48:35,130 INFO L85 PathProgramCache]: Analyzing trace with hash 1490572407, now seen corresponding path program 1 times [2021-11-20 05:48:35,130 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:48:35,131 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1405624901] [2021-11-20 05:48:35,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:48:35,131 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:48:35,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:35,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-20 05:48:35,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:35,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-11-20 05:48:35,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:35,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-11-20 05:48:35,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:35,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-11-20 05:48:35,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:35,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:48:35,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:35,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 05:48:35,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:35,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-20 05:48:35,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:35,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-20 05:48:35,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:35,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:48:35,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:35,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 05:48:35,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:35,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-20 05:48:35,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:35,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2021-11-20 05:48:35,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:35,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:48:35,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:35,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 05:48:35,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:35,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-20 05:48:35,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:35,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-11-20 05:48:35,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:35,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-20 05:48:35,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:35,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:48:35,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:35,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:48:35,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:35,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-11-20 05:48:35,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:35,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-11-20 05:48:35,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:35,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-11-20 05:48:35,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:35,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2021-11-20 05:48:35,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:35,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2021-11-20 05:48:35,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:35,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2021-11-20 05:48:35,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:35,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:48:35,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:35,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-11-20 05:48:35,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:35,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-11-20 05:48:35,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:35,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2021-11-20 05:48:35,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:35,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2021-11-20 05:48:35,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:35,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2021-11-20 05:48:35,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:35,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2021-11-20 05:48:35,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:35,519 INFO L134 CoverageAnalysis]: Checked inductivity of 277 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 277 trivial. 0 not checked. [2021-11-20 05:48:35,519 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:48:35,519 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1405624901] [2021-11-20 05:48:35,520 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1405624901] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:48:35,520 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:48:35,520 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-20 05:48:35,520 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1288640075] [2021-11-20 05:48:35,520 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:48:35,521 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-20 05:48:35,521 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:48:35,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-20 05:48:35,522 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-20 05:48:35,522 INFO L87 Difference]: Start difference. First operand 7467 states and 9612 transitions. Second operand has 6 states, 6 states have (on average 14.666666666666666) internal successors, (88), 3 states have internal predecessors, (88), 4 states have call successors, (30), 5 states have call predecessors, (30), 1 states have return successors, (26), 3 states have call predecessors, (26), 4 states have call successors, (26) [2021-11-20 05:48:39,803 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-20 05:48:42,551 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:48:44,673 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:48:46,803 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:48:54,266 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:48:56,286 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:48:58,300 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:49:01,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:49:01,159 INFO L93 Difference]: Finished difference Result 16583 states and 21793 transitions. [2021-11-20 05:49:01,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-20 05:49:01,159 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.666666666666666) internal successors, (88), 3 states have internal predecessors, (88), 4 states have call successors, (30), 5 states have call predecessors, (30), 1 states have return successors, (26), 3 states have call predecessors, (26), 4 states have call successors, (26) Word has length 208 [2021-11-20 05:49:01,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:49:01,181 INFO L225 Difference]: With dead ends: 16583 [2021-11-20 05:49:01,181 INFO L226 Difference]: Without dead ends: 9143 [2021-11-20 05:49:01,210 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2021-11-20 05:49:01,211 INFO L933 BasicCegarLoop]: 2057 mSDtfsCounter, 1486 mSDsluCounter, 3794 mSDsCounter, 0 mSdLazyCounter, 3299 mSolverCounterSat, 1050 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1620 SdHoareTripleChecker+Valid, 5851 SdHoareTripleChecker+Invalid, 4356 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1050 IncrementalHoareTripleChecker+Valid, 3299 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 24.5s IncrementalHoareTripleChecker+Time [2021-11-20 05:49:01,211 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1620 Valid, 5851 Invalid, 4356 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1050 Valid, 3299 Invalid, 7 Unknown, 0 Unchecked, 24.5s Time] [2021-11-20 05:49:01,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9143 states. [2021-11-20 05:49:02,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9143 to 8287. [2021-11-20 05:49:02,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8287 states, 5861 states have (on average 1.2438150486265143) internal successors, (7290), 5989 states have internal predecessors, (7290), 1762 states have call successors, (1762), 643 states have call predecessors, (1762), 651 states have return successors, (1806), 1735 states have call predecessors, (1806), 1758 states have call successors, (1806) [2021-11-20 05:49:02,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8287 states to 8287 states and 10858 transitions. [2021-11-20 05:49:02,038 INFO L78 Accepts]: Start accepts. Automaton has 8287 states and 10858 transitions. Word has length 208 [2021-11-20 05:49:02,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:49:02,039 INFO L470 AbstractCegarLoop]: Abstraction has 8287 states and 10858 transitions. [2021-11-20 05:49:02,039 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.666666666666666) internal successors, (88), 3 states have internal predecessors, (88), 4 states have call successors, (30), 5 states have call predecessors, (30), 1 states have return successors, (26), 3 states have call predecessors, (26), 4 states have call successors, (26) [2021-11-20 05:49:02,039 INFO L276 IsEmpty]: Start isEmpty. Operand 8287 states and 10858 transitions. [2021-11-20 05:49:02,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2021-11-20 05:49:02,042 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:49:02,043 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 11, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:49:02,043 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2021-11-20 05:49:02,043 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2021-11-20 05:49:02,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:49:02,044 INFO L85 PathProgramCache]: Analyzing trace with hash 646566905, now seen corresponding path program 1 times [2021-11-20 05:49:02,044 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:49:02,044 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1415663317] [2021-11-20 05:49:02,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:49:02,044 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:49:02,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:02,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-20 05:49:02,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:02,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-11-20 05:49:02,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:02,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-11-20 05:49:02,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:02,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-11-20 05:49:02,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:02,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:49:02,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:02,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 05:49:02,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:02,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-20 05:49:02,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:02,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-20 05:49:02,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:02,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:49:02,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:02,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 05:49:02,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:02,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-20 05:49:02,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:02,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2021-11-20 05:49:02,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:02,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:49:02,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:02,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 05:49:02,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:02,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-20 05:49:02,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:02,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-11-20 05:49:02,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:02,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-20 05:49:02,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:02,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:49:02,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:02,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:49:02,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:02,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-11-20 05:49:02,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:02,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-11-20 05:49:02,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:02,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-11-20 05:49:02,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:02,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2021-11-20 05:49:02,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:02,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2021-11-20 05:49:02,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:02,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2021-11-20 05:49:02,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:02,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:49:02,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:02,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-11-20 05:49:02,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:02,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-11-20 05:49:02,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:02,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2021-11-20 05:49:02,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:02,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2021-11-20 05:49:02,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:02,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2021-11-20 05:49:02,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:02,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2021-11-20 05:49:02,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:02,573 INFO L134 CoverageAnalysis]: Checked inductivity of 277 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 277 trivial. 0 not checked. [2021-11-20 05:49:02,573 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:49:02,573 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1415663317] [2021-11-20 05:49:02,574 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1415663317] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:49:02,574 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:49:02,574 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-20 05:49:02,574 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2145491501] [2021-11-20 05:49:02,574 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:49:02,575 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-20 05:49:02,575 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:49:02,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-20 05:49:02,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-20 05:49:02,576 INFO L87 Difference]: Start difference. First operand 8287 states and 10858 transitions. Second operand has 7 states, 7 states have (on average 12.571428571428571) internal successors, (88), 4 states have internal predecessors, (88), 3 states have call successors, (30), 5 states have call predecessors, (30), 2 states have return successors, (26), 2 states have call predecessors, (26), 3 states have call successors, (26) [2021-11-20 05:49:13,754 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:49:15,764 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:49:17,822 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:49:21,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:49:21,071 INFO L93 Difference]: Finished difference Result 9093 states and 12119 transitions. [2021-11-20 05:49:21,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-20 05:49:21,071 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.571428571428571) internal successors, (88), 4 states have internal predecessors, (88), 3 states have call successors, (30), 5 states have call predecessors, (30), 2 states have return successors, (26), 2 states have call predecessors, (26), 3 states have call successors, (26) Word has length 208 [2021-11-20 05:49:21,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:49:21,093 INFO L225 Difference]: With dead ends: 9093 [2021-11-20 05:49:21,093 INFO L226 Difference]: Without dead ends: 9091 [2021-11-20 05:49:21,096 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=60, Invalid=122, Unknown=0, NotChecked=0, Total=182 [2021-11-20 05:49:21,097 INFO L933 BasicCegarLoop]: 1964 mSDtfsCounter, 1609 mSDsluCounter, 4459 mSDsCounter, 0 mSdLazyCounter, 3985 mSolverCounterSat, 1068 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1692 SdHoareTripleChecker+Valid, 6423 SdHoareTripleChecker+Invalid, 5056 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1068 IncrementalHoareTripleChecker+Valid, 3985 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.3s IncrementalHoareTripleChecker+Time [2021-11-20 05:49:21,097 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1692 Valid, 6423 Invalid, 5056 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1068 Valid, 3985 Invalid, 3 Unknown, 0 Unchecked, 17.3s Time] [2021-11-20 05:49:21,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9091 states. [2021-11-20 05:49:21,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9091 to 8287. [2021-11-20 05:49:21,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8287 states, 5861 states have (on average 1.2426207131888756) internal successors, (7283), 5989 states have internal predecessors, (7283), 1762 states have call successors, (1762), 643 states have call predecessors, (1762), 651 states have return successors, (1806), 1735 states have call predecessors, (1806), 1758 states have call successors, (1806) [2021-11-20 05:49:21,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8287 states to 8287 states and 10851 transitions. [2021-11-20 05:49:21,801 INFO L78 Accepts]: Start accepts. Automaton has 8287 states and 10851 transitions. Word has length 208 [2021-11-20 05:49:21,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:49:21,801 INFO L470 AbstractCegarLoop]: Abstraction has 8287 states and 10851 transitions. [2021-11-20 05:49:21,801 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.571428571428571) internal successors, (88), 4 states have internal predecessors, (88), 3 states have call successors, (30), 5 states have call predecessors, (30), 2 states have return successors, (26), 2 states have call predecessors, (26), 3 states have call successors, (26) [2021-11-20 05:49:21,801 INFO L276 IsEmpty]: Start isEmpty. Operand 8287 states and 10851 transitions. [2021-11-20 05:49:21,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2021-11-20 05:49:21,804 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:49:21,804 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:49:21,804 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2021-11-20 05:49:21,804 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2021-11-20 05:49:21,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:49:21,805 INFO L85 PathProgramCache]: Analyzing trace with hash -1110947557, now seen corresponding path program 1 times [2021-11-20 05:49:21,805 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:49:21,805 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2103058331] [2021-11-20 05:49:21,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:49:21,805 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:49:21,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:22,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-20 05:49:22,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:22,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-11-20 05:49:22,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:22,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-11-20 05:49:22,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:22,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-11-20 05:49:22,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:22,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:49:22,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:22,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 05:49:22,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:22,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-20 05:49:22,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:22,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-20 05:49:22,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:22,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:49:22,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:22,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 05:49:22,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:22,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-20 05:49:22,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:22,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2021-11-20 05:49:22,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:22,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:49:22,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:22,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 05:49:22,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:22,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-20 05:49:22,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:22,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-11-20 05:49:22,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:22,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-20 05:49:22,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:22,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:49:22,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:22,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:49:22,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:22,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-11-20 05:49:22,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:22,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-11-20 05:49:22,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:22,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-11-20 05:49:22,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:22,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-11-20 05:49:22,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:22,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-11-20 05:49:22,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:22,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2021-11-20 05:49:22,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:22,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:49:22,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:22,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2021-11-20 05:49:22,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:22,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:49:22,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:22,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:49:22,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:22,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2021-11-20 05:49:22,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:22,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:49:22,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:22,548 INFO L134 CoverageAnalysis]: Checked inductivity of 245 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 243 trivial. 0 not checked. [2021-11-20 05:49:22,548 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:49:22,548 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2103058331] [2021-11-20 05:49:22,548 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2103058331] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:49:22,549 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:49:22,549 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-11-20 05:49:22,549 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [593554167] [2021-11-20 05:49:22,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:49:22,550 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-20 05:49:22,550 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:49:22,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-20 05:49:22,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-11-20 05:49:22,551 INFO L87 Difference]: Start difference. First operand 8287 states and 10851 transitions. Second operand has 9 states, 9 states have (on average 10.555555555555555) internal successors, (95), 5 states have internal predecessors, (95), 3 states have call successors, (27), 4 states have call predecessors, (27), 3 states have return successors, (25), 4 states have call predecessors, (25), 2 states have call successors, (25) [2021-11-20 05:49:27,886 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-20 05:49:30,022 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-20 05:49:32,373 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-20 05:49:34,566 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.19s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-20 05:49:36,765 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.20s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-20 05:49:38,940 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:49:41,121 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-20 05:49:43,303 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-20 05:49:46,024 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:49:48,162 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:49:50,286 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:49:52,425 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:49:54,551 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:49:56,677 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:50:00,697 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-20 05:50:02,829 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-20 05:50:04,956 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-20 05:50:07,083 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:50:10,191 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.11s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-20 05:50:12,322 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-20 05:50:21,503 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:50:23,655 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:50:26,100 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:50:28,133 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:50:30,168 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:50:32,191 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:50:34,227 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:50:36,236 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:50:42,016 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:50:44,170 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:50:46,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:50:46,263 INFO L93 Difference]: Finished difference Result 19558 states and 26315 transitions. [2021-11-20 05:50:46,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-20 05:50:46,264 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.555555555555555) internal successors, (95), 5 states have internal predecessors, (95), 3 states have call successors, (27), 4 states have call predecessors, (27), 3 states have return successors, (25), 4 states have call predecessors, (25), 2 states have call successors, (25) Word has length 206 [2021-11-20 05:50:46,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:50:46,299 INFO L225 Difference]: With dead ends: 19558 [2021-11-20 05:50:46,300 INFO L226 Difference]: Without dead ends: 11298 [2021-11-20 05:50:46,319 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2021-11-20 05:50:46,319 INFO L933 BasicCegarLoop]: 2773 mSDtfsCounter, 1843 mSDsluCounter, 11562 mSDsCounter, 0 mSdLazyCounter, 6304 mSolverCounterSat, 885 mSolverCounterUnsat, 30 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 77.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2128 SdHoareTripleChecker+Valid, 14335 SdHoareTripleChecker+Invalid, 7219 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 885 IncrementalHoareTripleChecker+Valid, 6304 IncrementalHoareTripleChecker+Invalid, 30 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 82.0s IncrementalHoareTripleChecker+Time [2021-11-20 05:50:46,320 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2128 Valid, 14335 Invalid, 7219 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [885 Valid, 6304 Invalid, 30 Unknown, 0 Unchecked, 82.0s Time] [2021-11-20 05:50:46,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11298 states. [2021-11-20 05:50:47,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11298 to 8311. [2021-11-20 05:50:47,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8311 states, 5877 states have (on average 1.2419601837672283) internal successors, (7299), 6005 states have internal predecessors, (7299), 1762 states have call successors, (1762), 643 states have call predecessors, (1762), 659 states have return successors, (1818), 1743 states have call predecessors, (1818), 1758 states have call successors, (1818) [2021-11-20 05:50:47,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8311 states to 8311 states and 10879 transitions. [2021-11-20 05:50:47,133 INFO L78 Accepts]: Start accepts. Automaton has 8311 states and 10879 transitions. Word has length 206 [2021-11-20 05:50:47,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:50:47,134 INFO L470 AbstractCegarLoop]: Abstraction has 8311 states and 10879 transitions. [2021-11-20 05:50:47,134 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.555555555555555) internal successors, (95), 5 states have internal predecessors, (95), 3 states have call successors, (27), 4 states have call predecessors, (27), 3 states have return successors, (25), 4 states have call predecessors, (25), 2 states have call successors, (25) [2021-11-20 05:50:47,134 INFO L276 IsEmpty]: Start isEmpty. Operand 8311 states and 10879 transitions. [2021-11-20 05:50:47,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2021-11-20 05:50:47,137 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:50:47,137 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:50:47,137 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2021-11-20 05:50:47,138 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2021-11-20 05:50:47,138 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:50:47,138 INFO L85 PathProgramCache]: Analyzing trace with hash -588709909, now seen corresponding path program 1 times [2021-11-20 05:50:47,138 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:50:47,138 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1437723337] [2021-11-20 05:50:47,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:50:47,139 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:50:47,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:47,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-20 05:50:47,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:47,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-11-20 05:50:47,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:47,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-11-20 05:50:47,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:47,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-11-20 05:50:47,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:47,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:50:47,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:47,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 05:50:47,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:47,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-20 05:50:47,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:47,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-20 05:50:47,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:47,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:50:47,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:47,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 05:50:47,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:47,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-20 05:50:47,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:47,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2021-11-20 05:50:47,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:47,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:50:47,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:47,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 05:50:47,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:47,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-20 05:50:47,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:47,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-11-20 05:50:47,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:47,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-20 05:50:47,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:47,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:50:47,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:47,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:50:47,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:47,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-11-20 05:50:47,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:47,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-11-20 05:50:47,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:47,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-11-20 05:50:47,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:47,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-11-20 05:50:47,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:47,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-11-20 05:50:47,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:47,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2021-11-20 05:50:47,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:47,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:50:47,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:47,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2021-11-20 05:50:47,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:47,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:50:47,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:47,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:50:47,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:47,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-11-20 05:50:47,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:47,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-11-20 05:50:47,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:47,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-11-20 05:50:47,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:47,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2021-11-20 05:50:47,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:47,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:50:47,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:47,632 INFO L134 CoverageAnalysis]: Checked inductivity of 338 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 336 trivial. 0 not checked. [2021-11-20 05:50:47,633 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:50:47,633 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1437723337] [2021-11-20 05:50:47,633 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1437723337] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:50:47,633 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:50:47,633 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-20 05:50:47,633 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1129228669] [2021-11-20 05:50:47,634 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:50:47,634 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-20 05:50:47,635 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:50:47,635 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-20 05:50:47,635 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-20 05:50:47,635 INFO L87 Difference]: Start difference. First operand 8311 states and 10879 transitions. Second operand has 7 states, 7 states have (on average 13.857142857142858) internal successors, (97), 4 states have internal predecessors, (97), 2 states have call successors, (30), 5 states have call predecessors, (30), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2021-11-20 05:50:52,229 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:50:55,448 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:51:02,439 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:51:04,453 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:51:06,493 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:51:09,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:51:09,360 INFO L93 Difference]: Finished difference Result 9279 states and 12202 transitions. [2021-11-20 05:51:09,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-20 05:51:09,361 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.857142857142858) internal successors, (97), 4 states have internal predecessors, (97), 2 states have call successors, (30), 5 states have call predecessors, (30), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 222 [2021-11-20 05:51:09,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:51:09,380 INFO L225 Difference]: With dead ends: 9279 [2021-11-20 05:51:09,380 INFO L226 Difference]: Without dead ends: 9277 [2021-11-20 05:51:09,383 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=64, Invalid=118, Unknown=0, NotChecked=0, Total=182 [2021-11-20 05:51:09,384 INFO L933 BasicCegarLoop]: 1974 mSDtfsCounter, 2890 mSDsluCounter, 3532 mSDsCounter, 0 mSdLazyCounter, 3354 mSolverCounterSat, 1435 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3052 SdHoareTripleChecker+Valid, 5506 SdHoareTripleChecker+Invalid, 4794 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1435 IncrementalHoareTripleChecker+Valid, 3354 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.5s IncrementalHoareTripleChecker+Time [2021-11-20 05:51:09,384 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3052 Valid, 5506 Invalid, 4794 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1435 Valid, 3354 Invalid, 5 Unknown, 0 Unchecked, 20.5s Time] [2021-11-20 05:51:09,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9277 states. [2021-11-20 05:51:10,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9277 to 8382. [2021-11-20 05:51:10,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8382 states, 5933 states have (on average 1.2395078375189617) internal successors, (7354), 6058 states have internal predecessors, (7354), 1752 states have call successors, (1752), 669 states have call predecessors, (1752), 685 states have return successors, (1808), 1735 states have call predecessors, (1808), 1748 states have call successors, (1808) [2021-11-20 05:51:10,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8382 states to 8382 states and 10914 transitions. [2021-11-20 05:51:10,110 INFO L78 Accepts]: Start accepts. Automaton has 8382 states and 10914 transitions. Word has length 222 [2021-11-20 05:51:10,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:51:10,111 INFO L470 AbstractCegarLoop]: Abstraction has 8382 states and 10914 transitions. [2021-11-20 05:51:10,111 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.857142857142858) internal successors, (97), 4 states have internal predecessors, (97), 2 states have call successors, (30), 5 states have call predecessors, (30), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2021-11-20 05:51:10,111 INFO L276 IsEmpty]: Start isEmpty. Operand 8382 states and 10914 transitions. [2021-11-20 05:51:10,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2021-11-20 05:51:10,116 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:51:10,117 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:51:10,117 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2021-11-20 05:51:10,117 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2021-11-20 05:51:10,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:51:10,118 INFO L85 PathProgramCache]: Analyzing trace with hash -678173082, now seen corresponding path program 1 times [2021-11-20 05:51:10,118 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:51:10,118 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1782865500] [2021-11-20 05:51:10,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:51:10,118 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:51:10,190 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-20 05:51:10,191 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1540770096] [2021-11-20 05:51:10,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:51:10,191 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 05:51:10,191 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11755b65-4fcb-4242-84e9-23646d1007d8/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:51:10,196 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11755b65-4fcb-4242-84e9-23646d1007d8/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 05:51:10,221 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11755b65-4fcb-4242-84e9-23646d1007d8/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-20 05:51:10,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:10,992 INFO L263 TraceCheckSpWp]: Trace formula consists of 2572 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-20 05:51:11,011 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 05:51:11,375 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-20 05:51:11,446 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 21 [2021-11-20 05:51:11,634 INFO L134 CoverageAnalysis]: Checked inductivity of 249 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 237 trivial. 0 not checked. [2021-11-20 05:51:11,634 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-20 05:51:11,634 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:51:11,634 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1782865500] [2021-11-20 05:51:11,634 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-20 05:51:11,635 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1540770096] [2021-11-20 05:51:11,635 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1540770096] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:51:11,635 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:51:11,635 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-20 05:51:11,635 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1458439788] [2021-11-20 05:51:11,636 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:51:11,636 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-20 05:51:11,636 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:51:11,637 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-20 05:51:11,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-20 05:51:11,637 INFO L87 Difference]: Start difference. First operand 8382 states and 10914 transitions. Second operand has 5 states, 5 states have (on average 23.2) internal successors, (116), 5 states have internal predecessors, (116), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2021-11-20 05:51:14,148 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:51:16,396 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-20 05:51:19,983 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:51:20,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:51:20,775 INFO L93 Difference]: Finished difference Result 17085 states and 22331 transitions. [2021-11-20 05:51:20,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-20 05:51:20,776 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.2) internal successors, (116), 5 states have internal predecessors, (116), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 223 [2021-11-20 05:51:20,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:51:20,804 INFO L225 Difference]: With dead ends: 17085 [2021-11-20 05:51:20,804 INFO L226 Difference]: Without dead ends: 8730 [2021-11-20 05:51:20,824 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 224 GetRequests, 219 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-11-20 05:51:20,825 INFO L933 BasicCegarLoop]: 2071 mSDtfsCounter, 49 mSDsluCounter, 5914 mSDsCounter, 0 mSdLazyCounter, 364 mSolverCounterSat, 24 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 7985 SdHoareTripleChecker+Invalid, 391 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 364 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.2s IncrementalHoareTripleChecker+Time [2021-11-20 05:51:20,825 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [63 Valid, 7985 Invalid, 391 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 364 Invalid, 3 Unknown, 0 Unchecked, 8.2s Time] [2021-11-20 05:51:20,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8730 states. [2021-11-20 05:51:21,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8730 to 8418. [2021-11-20 05:51:21,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8418 states, 5969 states have (on average 1.2400737141899816) internal successors, (7402), 6094 states have internal predecessors, (7402), 1752 states have call successors, (1752), 669 states have call predecessors, (1752), 685 states have return successors, (1808), 1735 states have call predecessors, (1808), 1748 states have call successors, (1808) [2021-11-20 05:51:21,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8418 states to 8418 states and 10962 transitions. [2021-11-20 05:51:21,579 INFO L78 Accepts]: Start accepts. Automaton has 8418 states and 10962 transitions. Word has length 223 [2021-11-20 05:51:21,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:51:21,579 INFO L470 AbstractCegarLoop]: Abstraction has 8418 states and 10962 transitions. [2021-11-20 05:51:21,579 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.2) internal successors, (116), 5 states have internal predecessors, (116), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2021-11-20 05:51:21,579 INFO L276 IsEmpty]: Start isEmpty. Operand 8418 states and 10962 transitions. [2021-11-20 05:51:21,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2021-11-20 05:51:21,583 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:51:21,583 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:51:21,606 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11755b65-4fcb-4242-84e9-23646d1007d8/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2021-11-20 05:51:21,783 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11755b65-4fcb-4242-84e9-23646d1007d8/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable34 [2021-11-20 05:51:21,784 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2021-11-20 05:51:21,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:51:21,784 INFO L85 PathProgramCache]: Analyzing trace with hash -858096802, now seen corresponding path program 1 times [2021-11-20 05:51:21,784 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:51:21,784 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [272618062] [2021-11-20 05:51:21,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:51:21,785 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:51:21,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:22,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-20 05:51:22,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:22,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-11-20 05:51:22,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:22,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-11-20 05:51:22,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:22,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-11-20 05:51:22,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:22,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:51:22,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:22,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 05:51:22,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:22,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-20 05:51:22,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:22,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-20 05:51:22,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:22,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:51:22,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:22,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 05:51:22,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:22,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-20 05:51:22,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:22,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2021-11-20 05:51:22,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:22,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:51:22,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:22,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 05:51:22,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:22,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-20 05:51:22,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:22,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-11-20 05:51:22,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:22,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-20 05:51:22,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:22,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:51:22,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:22,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:51:22,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:22,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-11-20 05:51:22,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:22,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-11-20 05:51:22,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:22,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-11-20 05:51:22,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:22,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-11-20 05:51:22,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:22,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-11-20 05:51:22,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:22,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2021-11-20 05:51:22,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:22,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:51:22,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:22,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2021-11-20 05:51:22,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:22,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:51:22,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:22,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:51:22,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:22,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-11-20 05:51:22,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:22,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-11-20 05:51:22,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:22,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-11-20 05:51:22,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:22,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2021-11-20 05:51:22,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:22,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:51:22,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:22,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2021-11-20 05:51:22,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:22,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:51:22,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:22,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2021-11-20 05:51:22,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:22,429 INFO L134 CoverageAnalysis]: Checked inductivity of 342 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 340 trivial. 0 not checked. [2021-11-20 05:51:22,429 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:51:22,430 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [272618062] [2021-11-20 05:51:22,430 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [272618062] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:51:22,430 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:51:22,430 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-20 05:51:22,431 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1118680341] [2021-11-20 05:51:22,431 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:51:22,432 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-20 05:51:22,432 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:51:22,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-20 05:51:22,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-11-20 05:51:22,433 INFO L87 Difference]: Start difference. First operand 8418 states and 10962 transitions. Second operand has 8 states, 8 states have (on average 13.25) internal successors, (106), 4 states have internal predecessors, (106), 2 states have call successors, (33), 6 states have call predecessors, (33), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2021-11-20 05:51:29,114 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:51:37,633 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:51:39,657 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:51:41,707 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:51:43,725 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:51:46,179 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:51:48,336 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:51:51,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:51:51,774 INFO L93 Difference]: Finished difference Result 9116 states and 12043 transitions. [2021-11-20 05:51:51,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-20 05:51:51,774 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 13.25) internal successors, (106), 4 states have internal predecessors, (106), 2 states have call successors, (33), 6 states have call predecessors, (33), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) Word has length 240 [2021-11-20 05:51:51,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:51:51,791 INFO L225 Difference]: With dead ends: 9116 [2021-11-20 05:51:51,792 INFO L226 Difference]: Without dead ends: 9114 [2021-11-20 05:51:51,794 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=87, Invalid=185, Unknown=0, NotChecked=0, Total=272 [2021-11-20 05:51:51,797 INFO L933 BasicCegarLoop]: 1924 mSDtfsCounter, 2405 mSDsluCounter, 4830 mSDsCounter, 0 mSdLazyCounter, 4655 mSolverCounterSat, 1712 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 26.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2409 SdHoareTripleChecker+Valid, 6754 SdHoareTripleChecker+Invalid, 6374 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1712 IncrementalHoareTripleChecker+Valid, 4655 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 28.0s IncrementalHoareTripleChecker+Time [2021-11-20 05:51:51,797 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2409 Valid, 6754 Invalid, 6374 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1712 Valid, 4655 Invalid, 7 Unknown, 0 Unchecked, 28.0s Time] [2021-11-20 05:51:51,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9114 states. [2021-11-20 05:51:52,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9114 to 8416. [2021-11-20 05:51:52,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8416 states, 5968 states have (on average 1.2394436997319034) internal successors, (7397), 6092 states have internal predecessors, (7397), 1752 states have call successors, (1752), 669 states have call predecessors, (1752), 685 states have return successors, (1808), 1735 states have call predecessors, (1808), 1748 states have call successors, (1808) [2021-11-20 05:51:52,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8416 states to 8416 states and 10957 transitions. [2021-11-20 05:51:52,544 INFO L78 Accepts]: Start accepts. Automaton has 8416 states and 10957 transitions. Word has length 240 [2021-11-20 05:51:52,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:51:52,544 INFO L470 AbstractCegarLoop]: Abstraction has 8416 states and 10957 transitions. [2021-11-20 05:51:52,544 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 13.25) internal successors, (106), 4 states have internal predecessors, (106), 2 states have call successors, (33), 6 states have call predecessors, (33), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2021-11-20 05:51:52,545 INFO L276 IsEmpty]: Start isEmpty. Operand 8416 states and 10957 transitions. [2021-11-20 05:51:52,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 246 [2021-11-20 05:51:52,549 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:51:52,549 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:51:52,549 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2021-11-20 05:51:52,549 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2021-11-20 05:51:52,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:51:52,550 INFO L85 PathProgramCache]: Analyzing trace with hash 1904125414, now seen corresponding path program 1 times [2021-11-20 05:51:52,550 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:51:52,550 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [862364121] [2021-11-20 05:51:52,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:51:52,550 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:51:52,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:52,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-20 05:51:52,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:52,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-11-20 05:51:52,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:52,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-11-20 05:51:52,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:52,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-11-20 05:51:52,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:52,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:51:52,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:52,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 05:51:52,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:52,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-20 05:51:52,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:52,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-20 05:51:52,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:52,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:51:52,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:52,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 05:51:52,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:52,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-20 05:51:52,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:52,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2021-11-20 05:51:52,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:52,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:51:52,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:52,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 05:51:52,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:52,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-20 05:51:52,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:52,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-11-20 05:51:52,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:52,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-20 05:51:52,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:52,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:51:52,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:52,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:51:52,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:52,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-11-20 05:51:52,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:52,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-11-20 05:51:52,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:52,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-11-20 05:51:52,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:52,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-11-20 05:51:52,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:52,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-11-20 05:51:52,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:52,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2021-11-20 05:51:52,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:52,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2021-11-20 05:51:52,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:52,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-11-20 05:51:52,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:52,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-20 05:51:52,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:52,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-11-20 05:51:53,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:53,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-20 05:51:53,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:53,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2021-11-20 05:51:53,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:53,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2021-11-20 05:51:53,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:53,030 INFO L134 CoverageAnalysis]: Checked inductivity of 259 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 259 trivial. 0 not checked. [2021-11-20 05:51:53,031 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:51:53,031 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [862364121] [2021-11-20 05:51:53,031 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [862364121] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:51:53,031 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:51:53,032 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-20 05:51:53,032 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1534730536] [2021-11-20 05:51:53,032 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:51:53,033 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-20 05:51:53,034 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:51:53,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-20 05:51:53,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-11-20 05:51:53,035 INFO L87 Difference]: Start difference. First operand 8416 states and 10957 transitions. Second operand has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 4 states have internal predecessors, (124), 2 states have call successors, (28), 5 states have call predecessors, (28), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2021-11-20 05:51:56,747 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-20 05:51:59,158 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:52:04,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:52:04,034 INFO L93 Difference]: Finished difference Result 18093 states and 23897 transitions. [2021-11-20 05:52:04,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-20 05:52:04,034 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 4 states have internal predecessors, (124), 2 states have call successors, (28), 5 states have call predecessors, (28), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 245 [2021-11-20 05:52:04,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:52:04,057 INFO L225 Difference]: With dead ends: 18093 [2021-11-20 05:52:04,057 INFO L226 Difference]: Without dead ends: 9704 [2021-11-20 05:52:04,079 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2021-11-20 05:52:04,080 INFO L933 BasicCegarLoop]: 2032 mSDtfsCounter, 1317 mSDsluCounter, 4249 mSDsCounter, 0 mSdLazyCounter, 1599 mSolverCounterSat, 1293 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1412 SdHoareTripleChecker+Valid, 6281 SdHoareTripleChecker+Invalid, 2894 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1293 IncrementalHoareTripleChecker+Valid, 1599 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.9s IncrementalHoareTripleChecker+Time [2021-11-20 05:52:04,080 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1412 Valid, 6281 Invalid, 2894 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1293 Valid, 1599 Invalid, 2 Unknown, 0 Unchecked, 9.9s Time] [2021-11-20 05:52:04,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9704 states. [2021-11-20 05:52:04,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9704 to 8424. [2021-11-20 05:52:04,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8424 states, 5976 states have (on average 1.2384538152610443) internal successors, (7401), 6100 states have internal predecessors, (7401), 1752 states have call successors, (1752), 669 states have call predecessors, (1752), 685 states have return successors, (1808), 1735 states have call predecessors, (1808), 1748 states have call successors, (1808) [2021-11-20 05:52:04,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8424 states to 8424 states and 10961 transitions. [2021-11-20 05:52:04,881 INFO L78 Accepts]: Start accepts. Automaton has 8424 states and 10961 transitions. Word has length 245 [2021-11-20 05:52:04,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:52:04,881 INFO L470 AbstractCegarLoop]: Abstraction has 8424 states and 10961 transitions. [2021-11-20 05:52:04,882 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 4 states have internal predecessors, (124), 2 states have call successors, (28), 5 states have call predecessors, (28), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2021-11-20 05:52:04,882 INFO L276 IsEmpty]: Start isEmpty. Operand 8424 states and 10961 transitions. [2021-11-20 05:52:04,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 318 [2021-11-20 05:52:04,886 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:52:04,887 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:52:04,887 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2021-11-20 05:52:04,887 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2021-11-20 05:52:04,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:52:04,888 INFO L85 PathProgramCache]: Analyzing trace with hash 2034486027, now seen corresponding path program 1 times [2021-11-20 05:52:04,888 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:52:04,888 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [678682216] [2021-11-20 05:52:04,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:52:04,888 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:52:04,960 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-20 05:52:04,960 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1793653771] [2021-11-20 05:52:04,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:52:04,961 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 05:52:04,961 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11755b65-4fcb-4242-84e9-23646d1007d8/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:52:04,962 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11755b65-4fcb-4242-84e9-23646d1007d8/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 05:52:04,978 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11755b65-4fcb-4242-84e9-23646d1007d8/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-20 05:52:05,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:52:05,757 INFO L263 TraceCheckSpWp]: Trace formula consists of 2932 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-20 05:52:05,770 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 05:52:06,403 INFO L134 CoverageAnalysis]: Checked inductivity of 315 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 302 trivial. 0 not checked. [2021-11-20 05:52:06,403 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-20 05:52:06,404 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:52:06,404 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [678682216] [2021-11-20 05:52:06,404 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-20 05:52:06,404 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1793653771] [2021-11-20 05:52:06,404 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1793653771] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:52:06,404 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:52:06,404 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-20 05:52:06,405 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1381098818] [2021-11-20 05:52:06,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:52:06,405 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 05:52:06,406 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:52:06,406 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 05:52:06,406 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 05:52:06,406 INFO L87 Difference]: Start difference. First operand 8424 states and 10961 transitions. Second operand has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 3 states have internal predecessors, (152), 2 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2021-11-20 05:52:07,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:52:07,256 INFO L93 Difference]: Finished difference Result 16829 states and 21905 transitions. [2021-11-20 05:52:07,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 05:52:07,257 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 3 states have internal predecessors, (152), 2 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) Word has length 317 [2021-11-20 05:52:07,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:52:07,273 INFO L225 Difference]: With dead ends: 16829 [2021-11-20 05:52:07,273 INFO L226 Difference]: Without dead ends: 8432 [2021-11-20 05:52:07,284 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 316 GetRequests, 315 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 05:52:07,284 INFO L933 BasicCegarLoop]: 2067 mSDtfsCounter, 0 mSDsluCounter, 2062 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 4129 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-20 05:52:07,284 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 4129 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-20 05:52:07,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8432 states. [2021-11-20 05:52:08,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8432 to 8432. [2021-11-20 05:52:08,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8432 states, 5984 states have (on average 1.2381350267379678) internal successors, (7409), 6108 states have internal predecessors, (7409), 1752 states have call successors, (1752), 669 states have call predecessors, (1752), 685 states have return successors, (1808), 1735 states have call predecessors, (1808), 1748 states have call successors, (1808) [2021-11-20 05:52:08,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8432 states to 8432 states and 10969 transitions. [2021-11-20 05:52:08,063 INFO L78 Accepts]: Start accepts. Automaton has 8432 states and 10969 transitions. Word has length 317 [2021-11-20 05:52:08,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:52:08,064 INFO L470 AbstractCegarLoop]: Abstraction has 8432 states and 10969 transitions. [2021-11-20 05:52:08,064 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 3 states have internal predecessors, (152), 2 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2021-11-20 05:52:08,064 INFO L276 IsEmpty]: Start isEmpty. Operand 8432 states and 10969 transitions. [2021-11-20 05:52:08,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 320 [2021-11-20 05:52:08,068 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:52:08,069 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:52:08,096 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11755b65-4fcb-4242-84e9-23646d1007d8/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-20 05:52:08,273 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11755b65-4fcb-4242-84e9-23646d1007d8/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2021-11-20 05:52:08,274 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2021-11-20 05:52:08,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:52:08,274 INFO L85 PathProgramCache]: Analyzing trace with hash -797003887, now seen corresponding path program 1 times [2021-11-20 05:52:08,274 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:52:08,274 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [358517195] [2021-11-20 05:52:08,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:52:08,274 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:52:08,339 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-20 05:52:08,339 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [909509011] [2021-11-20 05:52:08,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:52:08,340 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 05:52:08,340 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11755b65-4fcb-4242-84e9-23646d1007d8/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:52:08,341 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11755b65-4fcb-4242-84e9-23646d1007d8/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 05:52:08,357 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11755b65-4fcb-4242-84e9-23646d1007d8/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-20 05:52:09,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:52:09,205 INFO L263 TraceCheckSpWp]: Trace formula consists of 2942 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-20 05:52:09,214 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 05:52:09,827 INFO L134 CoverageAnalysis]: Checked inductivity of 315 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 302 trivial. 0 not checked. [2021-11-20 05:52:09,828 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-20 05:52:09,828 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:52:09,828 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [358517195] [2021-11-20 05:52:09,828 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-20 05:52:09,828 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [909509011] [2021-11-20 05:52:09,828 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [909509011] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:52:09,828 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:52:09,829 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 05:52:09,829 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1311456486] [2021-11-20 05:52:09,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:52:09,830 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 05:52:09,830 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:52:09,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 05:52:09,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 05:52:09,830 INFO L87 Difference]: Start difference. First operand 8432 states and 10969 transitions. Second operand has 4 states, 4 states have (on average 38.5) internal successors, (154), 4 states have internal predecessors, (154), 2 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2021-11-20 05:52:10,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:52:10,694 INFO L93 Difference]: Finished difference Result 16861 states and 21937 transitions. [2021-11-20 05:52:10,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-20 05:52:10,694 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 38.5) internal successors, (154), 4 states have internal predecessors, (154), 2 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) Word has length 319 [2021-11-20 05:52:10,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:52:10,721 INFO L225 Difference]: With dead ends: 16861 [2021-11-20 05:52:10,722 INFO L226 Difference]: Without dead ends: 8456 [2021-11-20 05:52:10,738 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 319 GetRequests, 316 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-20 05:52:10,738 INFO L933 BasicCegarLoop]: 2065 mSDtfsCounter, 3 mSDsluCounter, 4124 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 6189 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-20 05:52:10,739 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3 Valid, 6189 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-20 05:52:10,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8456 states. [2021-11-20 05:52:11,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8456 to 8448. [2021-11-20 05:52:11,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8448 states, 6000 states have (on average 1.2375) internal successors, (7425), 6124 states have internal predecessors, (7425), 1752 states have call successors, (1752), 669 states have call predecessors, (1752), 685 states have return successors, (1808), 1735 states have call predecessors, (1808), 1748 states have call successors, (1808) [2021-11-20 05:52:11,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8448 states to 8448 states and 10985 transitions. [2021-11-20 05:52:11,517 INFO L78 Accepts]: Start accepts. Automaton has 8448 states and 10985 transitions. Word has length 319 [2021-11-20 05:52:11,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:52:11,518 INFO L470 AbstractCegarLoop]: Abstraction has 8448 states and 10985 transitions. [2021-11-20 05:52:11,518 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 38.5) internal successors, (154), 4 states have internal predecessors, (154), 2 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2021-11-20 05:52:11,518 INFO L276 IsEmpty]: Start isEmpty. Operand 8448 states and 10985 transitions. [2021-11-20 05:52:11,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 320 [2021-11-20 05:52:11,522 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:52:11,523 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:52:11,550 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11755b65-4fcb-4242-84e9-23646d1007d8/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-20 05:52:11,723 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11755b65-4fcb-4242-84e9-23646d1007d8/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2021-11-20 05:52:11,724 INFO L402 AbstractCegarLoop]: === Iteration 40 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2021-11-20 05:52:11,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:52:11,724 INFO L85 PathProgramCache]: Analyzing trace with hash -373357165, now seen corresponding path program 1 times [2021-11-20 05:52:11,724 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:52:11,725 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2053443450] [2021-11-20 05:52:11,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:52:11,725 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:52:11,787 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-20 05:52:11,788 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1142464114] [2021-11-20 05:52:11,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:52:11,788 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 05:52:11,788 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11755b65-4fcb-4242-84e9-23646d1007d8/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:52:11,789 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11755b65-4fcb-4242-84e9-23646d1007d8/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 05:52:11,807 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11755b65-4fcb-4242-84e9-23646d1007d8/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-20 05:52:12,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:52:12,475 INFO L263 TraceCheckSpWp]: Trace formula consists of 2947 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-20 05:52:12,483 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 05:52:13,052 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 23 [2021-11-20 05:52:13,276 INFO L134 CoverageAnalysis]: Checked inductivity of 315 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 302 trivial. 0 not checked. [2021-11-20 05:52:13,276 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-20 05:52:13,276 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:52:13,276 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2053443450] [2021-11-20 05:52:13,277 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-20 05:52:13,277 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1142464114] [2021-11-20 05:52:13,277 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1142464114] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:52:13,277 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:52:13,277 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-20 05:52:13,277 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [148479713] [2021-11-20 05:52:13,278 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:52:13,278 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-20 05:52:13,278 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:52:13,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-20 05:52:13,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-20 05:52:13,279 INFO L87 Difference]: Start difference. First operand 8448 states and 10985 transitions. Second operand has 5 states, 5 states have (on average 30.8) internal successors, (154), 5 states have internal predecessors, (154), 2 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30)