./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--hid--usbhid--usbhid.ko.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af5414e3-0617-4494-a44b-8a9b2c022128/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af5414e3-0617-4494-a44b-8a9b2c022128/bin/utaipan-verify-nQ1chXbOIh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af5414e3-0617-4494-a44b-8a9b2c022128/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af5414e3-0617-4494-a44b-8a9b2c022128/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af5414e3-0617-4494-a44b-8a9b2c022128/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af5414e3-0617-4494-a44b-8a9b2c022128/bin/utaipan-verify-nQ1chXbOIh --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 7c12097eac5f261adffff229683e356131e183db7c13bb0d667f223c1dbcfa9a --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 18:58:58,671 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 18:58:58,737 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af5414e3-0617-4494-a44b-8a9b2c022128/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-12-02 18:58:58,742 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 18:58:58,743 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 18:58:58,767 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 18:58:58,768 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 18:58:58,768 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 18:58:58,769 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 18:58:58,770 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 18:58:58,770 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 18:58:58,771 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 18:58:58,771 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 18:58:58,772 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-12-02 18:58:58,772 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 18:58:58,773 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 18:58:58,773 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-12-02 18:58:58,774 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-12-02 18:58:58,774 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 18:58:58,775 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-12-02 18:58:58,776 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-12-02 18:58:58,776 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-12-02 18:58:58,777 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 18:58:58,778 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 18:58:58,778 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 18:58:58,778 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 18:58:58,779 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 18:58:58,779 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 18:58:58,780 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 18:58:58,780 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 18:58:58,781 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 18:58:58,781 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 18:58:58,781 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 18:58:58,781 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 18:58:58,782 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 18:58:58,782 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 18:58:58,782 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 18:58:58,782 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 18:58:58,783 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-12-02 18:58:58,783 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 18:58:58,783 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 18:58:58,784 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 18:58:58,784 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 18:58:58,784 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 18:58:58,784 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_af5414e3-0617-4494-a44b-8a9b2c022128/bin/utaipan-verify-nQ1chXbOIh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af5414e3-0617-4494-a44b-8a9b2c022128/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7c12097eac5f261adffff229683e356131e183db7c13bb0d667f223c1dbcfa9a [2023-12-02 18:58:59,021 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 18:58:59,042 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 18:58:59,045 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 18:58:59,046 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 18:58:59,046 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 18:58:59,048 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af5414e3-0617-4494-a44b-8a9b2c022128/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i [2023-12-02 18:59:01,731 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 18:59:02,287 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 18:59:02,288 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af5414e3-0617-4494-a44b-8a9b2c022128/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i [2023-12-02 18:59:02,336 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af5414e3-0617-4494-a44b-8a9b2c022128/bin/utaipan-verify-nQ1chXbOIh/data/f7257eedc/0d100a3aeaad4d07a1fd57288450ea04/FLAGd8df21723 [2023-12-02 18:59:02,347 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af5414e3-0617-4494-a44b-8a9b2c022128/bin/utaipan-verify-nQ1chXbOIh/data/f7257eedc/0d100a3aeaad4d07a1fd57288450ea04 [2023-12-02 18:59:02,350 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 18:59:02,351 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 18:59:02,352 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 18:59:02,353 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 18:59:02,357 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 18:59:02,357 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 06:59:02" (1/1) ... [2023-12-02 18:59:02,358 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@669e55ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:59:02, skipping insertion in model container [2023-12-02 18:59:02,358 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 06:59:02" (1/1) ... [2023-12-02 18:59:02,503 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 18:59:07,856 WARN L240 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_af5414e3-0617-4494-a44b-8a9b2c022128/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[497733,497746] [2023-12-02 18:59:07,860 WARN L240 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_af5414e3-0617-4494-a44b-8a9b2c022128/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[497878,497891] [2023-12-02 18:59:07,860 WARN L240 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_af5414e3-0617-4494-a44b-8a9b2c022128/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[498024,498037] [2023-12-02 18:59:07,861 WARN L240 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_af5414e3-0617-4494-a44b-8a9b2c022128/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[498189,498202] [2023-12-02 18:59:07,861 WARN L240 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_af5414e3-0617-4494-a44b-8a9b2c022128/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[498347,498360] [2023-12-02 18:59:07,861 WARN L240 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_af5414e3-0617-4494-a44b-8a9b2c022128/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[498505,498518] [2023-12-02 18:59:07,862 WARN L240 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_af5414e3-0617-4494-a44b-8a9b2c022128/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[498663,498676] [2023-12-02 18:59:07,862 WARN L240 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_af5414e3-0617-4494-a44b-8a9b2c022128/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[498823,498836] [2023-12-02 18:59:07,862 WARN L240 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_af5414e3-0617-4494-a44b-8a9b2c022128/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[498982,498995] [2023-12-02 18:59:07,863 WARN L240 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_af5414e3-0617-4494-a44b-8a9b2c022128/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[499121,499134] [2023-12-02 18:59:07,863 WARN L240 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_af5414e3-0617-4494-a44b-8a9b2c022128/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[499263,499276] [2023-12-02 18:59:07,864 WARN L240 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_af5414e3-0617-4494-a44b-8a9b2c022128/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[499412,499425] [2023-12-02 18:59:07,864 WARN L240 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_af5414e3-0617-4494-a44b-8a9b2c022128/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[499551,499564] [2023-12-02 18:59:07,865 WARN L240 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_af5414e3-0617-4494-a44b-8a9b2c022128/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[499706,499719] [2023-12-02 18:59:07,865 WARN L240 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_af5414e3-0617-4494-a44b-8a9b2c022128/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[499866,499879] [2023-12-02 18:59:07,866 WARN L240 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_af5414e3-0617-4494-a44b-8a9b2c022128/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[500017,500030] [2023-12-02 18:59:07,866 WARN L240 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_af5414e3-0617-4494-a44b-8a9b2c022128/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[500168,500181] [2023-12-02 18:59:07,867 WARN L240 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_af5414e3-0617-4494-a44b-8a9b2c022128/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[500320,500333] [2023-12-02 18:59:07,867 WARN L240 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_af5414e3-0617-4494-a44b-8a9b2c022128/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[500469,500482] [2023-12-02 18:59:07,868 WARN L240 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_af5414e3-0617-4494-a44b-8a9b2c022128/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[500617,500630] [2023-12-02 18:59:07,868 WARN L240 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_af5414e3-0617-4494-a44b-8a9b2c022128/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[500774,500787] [2023-12-02 18:59:07,868 WARN L240 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_af5414e3-0617-4494-a44b-8a9b2c022128/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[500923,500936] [2023-12-02 18:59:07,869 WARN L240 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_af5414e3-0617-4494-a44b-8a9b2c022128/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[501079,501092] [2023-12-02 18:59:07,869 WARN L240 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_af5414e3-0617-4494-a44b-8a9b2c022128/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[501232,501245] [2023-12-02 18:59:07,870 WARN L240 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_af5414e3-0617-4494-a44b-8a9b2c022128/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[501378,501391] [2023-12-02 18:59:07,871 WARN L240 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_af5414e3-0617-4494-a44b-8a9b2c022128/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[501521,501534] [2023-12-02 18:59:07,871 WARN L240 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_af5414e3-0617-4494-a44b-8a9b2c022128/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[501673,501686] [2023-12-02 18:59:07,872 WARN L240 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_af5414e3-0617-4494-a44b-8a9b2c022128/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[501819,501832] [2023-12-02 18:59:07,872 WARN L240 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_af5414e3-0617-4494-a44b-8a9b2c022128/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[501964,501977] [2023-12-02 18:59:07,886 WARN L240 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_af5414e3-0617-4494-a44b-8a9b2c022128/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[502118,502131] [2023-12-02 18:59:07,887 WARN L240 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_af5414e3-0617-4494-a44b-8a9b2c022128/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[502269,502282] [2023-12-02 18:59:07,887 WARN L240 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_af5414e3-0617-4494-a44b-8a9b2c022128/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[502424,502437] [2023-12-02 18:59:07,888 WARN L240 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_af5414e3-0617-4494-a44b-8a9b2c022128/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[502576,502589] [2023-12-02 18:59:07,888 WARN L240 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_af5414e3-0617-4494-a44b-8a9b2c022128/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[502731,502744] [2023-12-02 18:59:07,889 WARN L240 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_af5414e3-0617-4494-a44b-8a9b2c022128/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[502895,502908] [2023-12-02 18:59:07,889 WARN L240 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_af5414e3-0617-4494-a44b-8a9b2c022128/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[503051,503064] [2023-12-02 18:59:07,890 WARN L240 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_af5414e3-0617-4494-a44b-8a9b2c022128/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[503215,503228] [2023-12-02 18:59:07,891 WARN L240 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_af5414e3-0617-4494-a44b-8a9b2c022128/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[503357,503370] [2023-12-02 18:59:07,891 WARN L240 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_af5414e3-0617-4494-a44b-8a9b2c022128/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[503515,503528] [2023-12-02 18:59:07,892 WARN L240 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_af5414e3-0617-4494-a44b-8a9b2c022128/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[503682,503695] [2023-12-02 18:59:07,892 WARN L240 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_af5414e3-0617-4494-a44b-8a9b2c022128/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[503841,503854] [2023-12-02 18:59:07,893 WARN L240 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_af5414e3-0617-4494-a44b-8a9b2c022128/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[504000,504013] [2023-12-02 18:59:07,893 WARN L240 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_af5414e3-0617-4494-a44b-8a9b2c022128/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[504149,504162] [2023-12-02 18:59:07,894 WARN L240 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_af5414e3-0617-4494-a44b-8a9b2c022128/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[504296,504309] [2023-12-02 18:59:07,894 WARN L240 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_af5414e3-0617-4494-a44b-8a9b2c022128/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[504435,504448] [2023-12-02 18:59:07,895 WARN L240 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_af5414e3-0617-4494-a44b-8a9b2c022128/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[504598,504611] [2023-12-02 18:59:07,896 WARN L240 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_af5414e3-0617-4494-a44b-8a9b2c022128/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[504764,504777] [2023-12-02 18:59:07,896 WARN L240 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_af5414e3-0617-4494-a44b-8a9b2c022128/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[504928,504941] [2023-12-02 18:59:07,897 WARN L240 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_af5414e3-0617-4494-a44b-8a9b2c022128/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[505093,505106] [2023-12-02 18:59:07,897 WARN L240 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_af5414e3-0617-4494-a44b-8a9b2c022128/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[505258,505271] [2023-12-02 18:59:07,898 WARN L240 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_af5414e3-0617-4494-a44b-8a9b2c022128/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[505424,505437] [2023-12-02 18:59:07,898 WARN L240 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_af5414e3-0617-4494-a44b-8a9b2c022128/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[505589,505602] [2023-12-02 18:59:07,899 WARN L240 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_af5414e3-0617-4494-a44b-8a9b2c022128/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[505756,505769] [2023-12-02 18:59:07,899 WARN L240 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_af5414e3-0617-4494-a44b-8a9b2c022128/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[505916,505929] [2023-12-02 18:59:07,900 WARN L240 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_af5414e3-0617-4494-a44b-8a9b2c022128/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[506078,506091] [2023-12-02 18:59:07,900 WARN L240 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_af5414e3-0617-4494-a44b-8a9b2c022128/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[506237,506250] [2023-12-02 18:59:07,901 WARN L240 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_af5414e3-0617-4494-a44b-8a9b2c022128/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[506383,506396] [2023-12-02 18:59:07,901 WARN L240 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_af5414e3-0617-4494-a44b-8a9b2c022128/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[506526,506539] [2023-12-02 18:59:07,901 WARN L240 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_af5414e3-0617-4494-a44b-8a9b2c022128/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[506670,506683] [2023-12-02 18:59:07,902 WARN L240 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_af5414e3-0617-4494-a44b-8a9b2c022128/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[506813,506826] [2023-12-02 18:59:07,902 WARN L240 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_af5414e3-0617-4494-a44b-8a9b2c022128/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[506957,506970] [2023-12-02 18:59:07,902 WARN L240 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_af5414e3-0617-4494-a44b-8a9b2c022128/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[507098,507111] [2023-12-02 18:59:07,903 WARN L240 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_af5414e3-0617-4494-a44b-8a9b2c022128/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[507236,507249] [2023-12-02 18:59:07,903 WARN L240 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_af5414e3-0617-4494-a44b-8a9b2c022128/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[507394,507407] [2023-12-02 18:59:07,904 WARN L240 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_af5414e3-0617-4494-a44b-8a9b2c022128/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[507553,507566] [2023-12-02 18:59:07,904 WARN L240 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_af5414e3-0617-4494-a44b-8a9b2c022128/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[507709,507722] [2023-12-02 18:59:07,905 WARN L240 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_af5414e3-0617-4494-a44b-8a9b2c022128/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[507858,507871] [2023-12-02 18:59:07,905 WARN L240 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_af5414e3-0617-4494-a44b-8a9b2c022128/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[508010,508023] [2023-12-02 18:59:07,906 WARN L240 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_af5414e3-0617-4494-a44b-8a9b2c022128/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[508161,508174] [2023-12-02 18:59:07,906 WARN L240 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_af5414e3-0617-4494-a44b-8a9b2c022128/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[508310,508323] [2023-12-02 18:59:07,907 WARN L240 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_af5414e3-0617-4494-a44b-8a9b2c022128/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[508462,508475] [2023-12-02 18:59:07,908 WARN L240 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_af5414e3-0617-4494-a44b-8a9b2c022128/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[508610,508623] [2023-12-02 18:59:07,908 WARN L240 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_af5414e3-0617-4494-a44b-8a9b2c022128/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[508763,508776] [2023-12-02 18:59:07,909 WARN L240 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_af5414e3-0617-4494-a44b-8a9b2c022128/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[508914,508927] [2023-12-02 18:59:07,909 WARN L240 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_af5414e3-0617-4494-a44b-8a9b2c022128/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[509064,509077] [2023-12-02 18:59:07,910 WARN L240 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_af5414e3-0617-4494-a44b-8a9b2c022128/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[509211,509224] [2023-12-02 18:59:07,910 WARN L240 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_af5414e3-0617-4494-a44b-8a9b2c022128/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[509362,509375] [2023-12-02 18:59:07,911 WARN L240 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_af5414e3-0617-4494-a44b-8a9b2c022128/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[509513,509526] [2023-12-02 18:59:07,911 WARN L240 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_af5414e3-0617-4494-a44b-8a9b2c022128/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[509661,509674] [2023-12-02 18:59:07,912 WARN L240 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_af5414e3-0617-4494-a44b-8a9b2c022128/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[509827,509840] [2023-12-02 18:59:07,912 WARN L240 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_af5414e3-0617-4494-a44b-8a9b2c022128/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[509996,510009] [2023-12-02 18:59:07,913 WARN L240 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_af5414e3-0617-4494-a44b-8a9b2c022128/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[510163,510176] [2023-12-02 18:59:07,913 WARN L240 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_af5414e3-0617-4494-a44b-8a9b2c022128/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[510331,510344] [2023-12-02 18:59:07,914 WARN L240 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_af5414e3-0617-4494-a44b-8a9b2c022128/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[510481,510494] [2023-12-02 18:59:07,915 WARN L240 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_af5414e3-0617-4494-a44b-8a9b2c022128/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[510628,510641] [2023-12-02 18:59:07,915 WARN L240 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_af5414e3-0617-4494-a44b-8a9b2c022128/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[510789,510802] [2023-12-02 18:59:07,916 WARN L240 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_af5414e3-0617-4494-a44b-8a9b2c022128/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[510959,510972] [2023-12-02 18:59:07,916 WARN L240 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_af5414e3-0617-4494-a44b-8a9b2c022128/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[511121,511134] [2023-12-02 18:59:07,946 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 18:59:07,991 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 18:59:08,096 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; bts %1,%0": "+m" (*((long volatile *)addr)): "Ir" (nr): "memory"); [5070] [2023-12-02 18:59:08,098 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; btr %1,%0": "+m" (*((long volatile *)addr)): "Ir" (nr)); [5077] [2023-12-02 18:59:08,098 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("":); [5084] [2023-12-02 18:59:08,099 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("bsrl %1,%0": "=r" (r): "rm" (x), "0" (-1)); [5099] [2023-12-02 18:59:08,324 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("bt %2,%1\n\tsbb %0,%0": "=r" (oldbit): "m" (*((unsigned long *)addr)), "Ir" (nr)); [10430-10431] [2023-12-02 18:59:08,325 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movb %%gs:%P1,%0": "=q" (pfo_ret__): "p" (& current_task)); [10468] [2023-12-02 18:59:08,325 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movw %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [10471] [2023-12-02 18:59:08,325 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movl %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [10474] [2023-12-02 18:59:08,325 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movq %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [10477] [2023-12-02 18:59:08,344 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgb %b0, %1\n": "+q" (__ret), "+m" (tmp___4->state): : "memory", "cc"); [11165-11166] [2023-12-02 18:59:08,344 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgw %w0, %1\n": "+r" (__ret), "+m" (tmp___5->state): : "memory", "cc"); [11172-11173] [2023-12-02 18:59:08,345 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgl %0, %1\n": "+r" (__ret), "+m" (tmp___6->state): : "memory", "cc"); [11179-11180] [2023-12-02 18:59:08,345 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgq %q0, %1\n": "+r" (__ret), "+m" (tmp___7->state): : "memory", "cc"); [11186-11187] [2023-12-02 18:59:08,354 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __get_user_%P3": "=a" (__ret_gu), "=r" (__val_gu): "0" ((int *)user_arg), "i" (4UL)); [11518-11519] [2023-12-02 18:59:08,357 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_1": "=a" (__ret_pu): "0" (__pu_val), "c" ((int *)arg): "ebx"); [11712] [2023-12-02 18:59:08,357 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_2": "=a" (__ret_pu): "0" (__pu_val), "c" ((int *)arg): "ebx"); [11715] [2023-12-02 18:59:08,358 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_4": "=a" (__ret_pu): "0" (__pu_val), "c" ((int *)arg): "ebx"); [11718] [2023-12-02 18:59:08,358 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_8": "=a" (__ret_pu): "0" (__pu_val), "c" ((int *)arg): "ebx"); [11721] [2023-12-02 18:59:08,358 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_X": "=a" (__ret_pu): "0" (__pu_val), "c" ((int *)arg): "ebx"); [11724] [2023-12-02 18:59:08,362 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_1": "=a" (__ret_pu___0): "0" (__pu_val___0), "c" ((int *)arg): "ebx"); [11802-11803] [2023-12-02 18:59:08,362 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_2": "=a" (__ret_pu___0): "0" (__pu_val___0), "c" ((int *)arg): "ebx"); [11806-11807] [2023-12-02 18:59:08,362 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_4": "=a" (__ret_pu___0): "0" (__pu_val___0), "c" ((int *)arg): "ebx"); [11810-11811] [2023-12-02 18:59:08,362 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_8": "=a" (__ret_pu___0): "0" (__pu_val___0), "c" ((int *)arg): "ebx"); [11814-11815] [2023-12-02 18:59:08,362 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_X": "=a" (__ret_pu___0): "0" (__pu_val___0), "c" ((int *)arg): "ebx"); [11818-11819] [2023-12-02 18:59:08,363 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __get_user_%P3": "=a" (__ret_gu), "=r" (__val_gu): "0" ((int *)arg), "i" (4UL)); [11829-11830] [2023-12-02 18:59:08,505 WARN L240 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_af5414e3-0617-4494-a44b-8a9b2c022128/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[497733,497746] [2023-12-02 18:59:08,505 WARN L240 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_af5414e3-0617-4494-a44b-8a9b2c022128/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[497878,497891] [2023-12-02 18:59:08,505 WARN L240 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_af5414e3-0617-4494-a44b-8a9b2c022128/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[498024,498037] [2023-12-02 18:59:08,506 WARN L240 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_af5414e3-0617-4494-a44b-8a9b2c022128/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[498189,498202] [2023-12-02 18:59:08,506 WARN L240 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_af5414e3-0617-4494-a44b-8a9b2c022128/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[498347,498360] [2023-12-02 18:59:08,506 WARN L240 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_af5414e3-0617-4494-a44b-8a9b2c022128/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[498505,498518] [2023-12-02 18:59:08,507 WARN L240 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_af5414e3-0617-4494-a44b-8a9b2c022128/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[498663,498676] [2023-12-02 18:59:08,507 WARN L240 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_af5414e3-0617-4494-a44b-8a9b2c022128/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[498823,498836] [2023-12-02 18:59:08,508 WARN L240 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_af5414e3-0617-4494-a44b-8a9b2c022128/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[498982,498995] [2023-12-02 18:59:08,508 WARN L240 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_af5414e3-0617-4494-a44b-8a9b2c022128/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[499121,499134] [2023-12-02 18:59:08,508 WARN L240 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_af5414e3-0617-4494-a44b-8a9b2c022128/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[499263,499276] [2023-12-02 18:59:08,509 WARN L240 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_af5414e3-0617-4494-a44b-8a9b2c022128/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[499412,499425] [2023-12-02 18:59:08,509 WARN L240 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_af5414e3-0617-4494-a44b-8a9b2c022128/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[499551,499564] [2023-12-02 18:59:08,509 WARN L240 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_af5414e3-0617-4494-a44b-8a9b2c022128/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[499706,499719] [2023-12-02 18:59:08,510 WARN L240 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_af5414e3-0617-4494-a44b-8a9b2c022128/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[499866,499879] [2023-12-02 18:59:08,510 WARN L240 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_af5414e3-0617-4494-a44b-8a9b2c022128/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[500017,500030] [2023-12-02 18:59:08,510 WARN L240 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_af5414e3-0617-4494-a44b-8a9b2c022128/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[500168,500181] [2023-12-02 18:59:08,511 WARN L240 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_af5414e3-0617-4494-a44b-8a9b2c022128/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[500320,500333] [2023-12-02 18:59:08,511 WARN L240 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_af5414e3-0617-4494-a44b-8a9b2c022128/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[500469,500482] [2023-12-02 18:59:08,511 WARN L240 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_af5414e3-0617-4494-a44b-8a9b2c022128/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[500617,500630] [2023-12-02 18:59:08,511 WARN L240 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_af5414e3-0617-4494-a44b-8a9b2c022128/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[500774,500787] [2023-12-02 18:59:08,512 WARN L240 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_af5414e3-0617-4494-a44b-8a9b2c022128/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[500923,500936] [2023-12-02 18:59:08,512 WARN L240 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_af5414e3-0617-4494-a44b-8a9b2c022128/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[501079,501092] [2023-12-02 18:59:08,512 WARN L240 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_af5414e3-0617-4494-a44b-8a9b2c022128/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[501232,501245] [2023-12-02 18:59:08,513 WARN L240 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_af5414e3-0617-4494-a44b-8a9b2c022128/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[501378,501391] [2023-12-02 18:59:08,514 WARN L240 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_af5414e3-0617-4494-a44b-8a9b2c022128/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[501521,501534] [2023-12-02 18:59:08,514 WARN L240 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_af5414e3-0617-4494-a44b-8a9b2c022128/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[501673,501686] [2023-12-02 18:59:08,514 WARN L240 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_af5414e3-0617-4494-a44b-8a9b2c022128/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[501819,501832] [2023-12-02 18:59:08,515 WARN L240 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_af5414e3-0617-4494-a44b-8a9b2c022128/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[501964,501977] [2023-12-02 18:59:08,515 WARN L240 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_af5414e3-0617-4494-a44b-8a9b2c022128/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[502118,502131] [2023-12-02 18:59:08,515 WARN L240 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_af5414e3-0617-4494-a44b-8a9b2c022128/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[502269,502282] [2023-12-02 18:59:08,516 WARN L240 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_af5414e3-0617-4494-a44b-8a9b2c022128/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[502424,502437] [2023-12-02 18:59:08,516 WARN L240 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_af5414e3-0617-4494-a44b-8a9b2c022128/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[502576,502589] [2023-12-02 18:59:08,516 WARN L240 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_af5414e3-0617-4494-a44b-8a9b2c022128/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[502731,502744] [2023-12-02 18:59:08,517 WARN L240 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_af5414e3-0617-4494-a44b-8a9b2c022128/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[502895,502908] [2023-12-02 18:59:08,517 WARN L240 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_af5414e3-0617-4494-a44b-8a9b2c022128/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[503051,503064] [2023-12-02 18:59:08,517 WARN L240 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_af5414e3-0617-4494-a44b-8a9b2c022128/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[503215,503228] [2023-12-02 18:59:08,518 WARN L240 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_af5414e3-0617-4494-a44b-8a9b2c022128/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[503357,503370] [2023-12-02 18:59:08,518 WARN L240 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_af5414e3-0617-4494-a44b-8a9b2c022128/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[503515,503528] [2023-12-02 18:59:08,518 WARN L240 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_af5414e3-0617-4494-a44b-8a9b2c022128/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[503682,503695] [2023-12-02 18:59:08,519 WARN L240 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_af5414e3-0617-4494-a44b-8a9b2c022128/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[503841,503854] [2023-12-02 18:59:08,519 WARN L240 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_af5414e3-0617-4494-a44b-8a9b2c022128/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[504000,504013] [2023-12-02 18:59:08,519 WARN L240 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_af5414e3-0617-4494-a44b-8a9b2c022128/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[504149,504162] [2023-12-02 18:59:08,519 WARN L240 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_af5414e3-0617-4494-a44b-8a9b2c022128/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[504296,504309] [2023-12-02 18:59:08,520 WARN L240 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_af5414e3-0617-4494-a44b-8a9b2c022128/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[504435,504448] [2023-12-02 18:59:08,520 WARN L240 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_af5414e3-0617-4494-a44b-8a9b2c022128/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[504598,504611] [2023-12-02 18:59:08,520 WARN L240 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_af5414e3-0617-4494-a44b-8a9b2c022128/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[504764,504777] [2023-12-02 18:59:08,521 WARN L240 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_af5414e3-0617-4494-a44b-8a9b2c022128/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[504928,504941] [2023-12-02 18:59:08,521 WARN L240 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_af5414e3-0617-4494-a44b-8a9b2c022128/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[505093,505106] [2023-12-02 18:59:08,521 WARN L240 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_af5414e3-0617-4494-a44b-8a9b2c022128/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[505258,505271] [2023-12-02 18:59:08,522 WARN L240 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_af5414e3-0617-4494-a44b-8a9b2c022128/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[505424,505437] [2023-12-02 18:59:08,522 WARN L240 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_af5414e3-0617-4494-a44b-8a9b2c022128/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[505589,505602] [2023-12-02 18:59:08,522 WARN L240 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_af5414e3-0617-4494-a44b-8a9b2c022128/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[505756,505769] [2023-12-02 18:59:08,523 WARN L240 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_af5414e3-0617-4494-a44b-8a9b2c022128/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[505916,505929] [2023-12-02 18:59:08,523 WARN L240 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_af5414e3-0617-4494-a44b-8a9b2c022128/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[506078,506091] [2023-12-02 18:59:08,523 WARN L240 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_af5414e3-0617-4494-a44b-8a9b2c022128/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[506237,506250] [2023-12-02 18:59:08,524 WARN L240 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_af5414e3-0617-4494-a44b-8a9b2c022128/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[506383,506396] [2023-12-02 18:59:08,524 WARN L240 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_af5414e3-0617-4494-a44b-8a9b2c022128/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[506526,506539] [2023-12-02 18:59:08,524 WARN L240 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_af5414e3-0617-4494-a44b-8a9b2c022128/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[506670,506683] [2023-12-02 18:59:08,525 WARN L240 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_af5414e3-0617-4494-a44b-8a9b2c022128/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[506813,506826] [2023-12-02 18:59:08,525 WARN L240 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_af5414e3-0617-4494-a44b-8a9b2c022128/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[506957,506970] [2023-12-02 18:59:08,525 WARN L240 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_af5414e3-0617-4494-a44b-8a9b2c022128/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[507098,507111] [2023-12-02 18:59:08,526 WARN L240 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_af5414e3-0617-4494-a44b-8a9b2c022128/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[507236,507249] [2023-12-02 18:59:08,526 WARN L240 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_af5414e3-0617-4494-a44b-8a9b2c022128/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[507394,507407] [2023-12-02 18:59:08,526 WARN L240 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_af5414e3-0617-4494-a44b-8a9b2c022128/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[507553,507566] [2023-12-02 18:59:08,526 WARN L240 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_af5414e3-0617-4494-a44b-8a9b2c022128/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[507709,507722] [2023-12-02 18:59:08,527 WARN L240 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_af5414e3-0617-4494-a44b-8a9b2c022128/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[507858,507871] [2023-12-02 18:59:08,527 WARN L240 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_af5414e3-0617-4494-a44b-8a9b2c022128/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[508010,508023] [2023-12-02 18:59:08,527 WARN L240 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_af5414e3-0617-4494-a44b-8a9b2c022128/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[508161,508174] [2023-12-02 18:59:08,528 WARN L240 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_af5414e3-0617-4494-a44b-8a9b2c022128/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[508310,508323] [2023-12-02 18:59:08,528 WARN L240 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_af5414e3-0617-4494-a44b-8a9b2c022128/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[508462,508475] [2023-12-02 18:59:08,528 WARN L240 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_af5414e3-0617-4494-a44b-8a9b2c022128/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[508610,508623] [2023-12-02 18:59:08,529 WARN L240 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_af5414e3-0617-4494-a44b-8a9b2c022128/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[508763,508776] [2023-12-02 18:59:08,529 WARN L240 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_af5414e3-0617-4494-a44b-8a9b2c022128/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[508914,508927] [2023-12-02 18:59:08,529 WARN L240 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_af5414e3-0617-4494-a44b-8a9b2c022128/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[509064,509077] [2023-12-02 18:59:08,530 WARN L240 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_af5414e3-0617-4494-a44b-8a9b2c022128/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[509211,509224] [2023-12-02 18:59:08,530 WARN L240 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_af5414e3-0617-4494-a44b-8a9b2c022128/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[509362,509375] [2023-12-02 18:59:08,530 WARN L240 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_af5414e3-0617-4494-a44b-8a9b2c022128/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[509513,509526] [2023-12-02 18:59:08,531 WARN L240 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_af5414e3-0617-4494-a44b-8a9b2c022128/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[509661,509674] [2023-12-02 18:59:08,531 WARN L240 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_af5414e3-0617-4494-a44b-8a9b2c022128/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[509827,509840] [2023-12-02 18:59:08,531 WARN L240 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_af5414e3-0617-4494-a44b-8a9b2c022128/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[509996,510009] [2023-12-02 18:59:08,532 WARN L240 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_af5414e3-0617-4494-a44b-8a9b2c022128/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[510163,510176] [2023-12-02 18:59:08,532 WARN L240 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_af5414e3-0617-4494-a44b-8a9b2c022128/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[510331,510344] [2023-12-02 18:59:08,532 WARN L240 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_af5414e3-0617-4494-a44b-8a9b2c022128/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[510481,510494] [2023-12-02 18:59:08,533 WARN L240 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_af5414e3-0617-4494-a44b-8a9b2c022128/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[510628,510641] [2023-12-02 18:59:08,533 WARN L240 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_af5414e3-0617-4494-a44b-8a9b2c022128/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[510789,510802] [2023-12-02 18:59:08,533 WARN L240 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_af5414e3-0617-4494-a44b-8a9b2c022128/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[510959,510972] [2023-12-02 18:59:08,534 WARN L240 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_af5414e3-0617-4494-a44b-8a9b2c022128/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i[511121,511134] [2023-12-02 18:59:08,539 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 18:59:08,866 WARN L675 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 18:59:08,866 WARN L675 CHandler]: The function __xchg_wrong_size is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 18:59:08,866 WARN L675 CHandler]: The function __bad_percpu_size is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 18:59:08,874 INFO L206 MainTranslator]: Completed translation [2023-12-02 18:59:08,875 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:59:08 WrapperNode [2023-12-02 18:59:08,875 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 18:59:08,876 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 18:59:08,876 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 18:59:08,876 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 18:59:08,884 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:59:08" (1/1) ... [2023-12-02 18:59:08,988 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:59:08" (1/1) ... [2023-12-02 18:59:09,277 INFO L138 Inliner]: procedures = 791, calls = 4767, calls flagged for inlining = 348, calls inlined = 249, statements flattened = 8559 [2023-12-02 18:59:09,278 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 18:59:09,279 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 18:59:09,279 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 18:59:09,279 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 18:59:09,293 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:59:08" (1/1) ... [2023-12-02 18:59:09,293 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:59:08" (1/1) ... [2023-12-02 18:59:09,326 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:59:08" (1/1) ... [2023-12-02 18:59:09,327 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:59:08" (1/1) ... [2023-12-02 18:59:09,455 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:59:08" (1/1) ... [2023-12-02 18:59:09,479 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:59:08" (1/1) ... [2023-12-02 18:59:09,518 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:59:08" (1/1) ... [2023-12-02 18:59:09,610 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:59:08" (1/1) ... [2023-12-02 18:59:09,655 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 18:59:09,656 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 18:59:09,656 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 18:59:09,656 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 18:59:09,656 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:59:08" (1/1) ... [2023-12-02 18:59:09,661 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 18:59:09,669 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af5414e3-0617-4494-a44b-8a9b2c022128/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 18:59:09,681 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af5414e3-0617-4494-a44b-8a9b2c022128/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 18:59:09,703 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af5414e3-0617-4494-a44b-8a9b2c022128/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 18:59:09,723 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2023-12-02 18:59:09,723 INFO L130 BoogieDeclarations]: Found specification of procedure pidff_request_effect_upload [2023-12-02 18:59:09,723 INFO L138 BoogieDeclarations]: Found implementation of procedure pidff_request_effect_upload [2023-12-02 18:59:09,723 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_xfer_int [2023-12-02 18:59:09,723 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_xfer_int [2023-12-02 18:59:09,724 INFO L130 BoogieDeclarations]: Found specification of procedure pidff_find_special_field [2023-12-02 18:59:09,724 INFO L138 BoogieDeclarations]: Found implementation of procedure pidff_find_special_field [2023-12-02 18:59:09,724 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_spinlock_spin_lock_lock_of_usbhid_device [2023-12-02 18:59:09,724 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_spinlock_spin_lock_lock_of_usbhid_device [2023-12-02 18:59:09,724 INFO L130 BoogieDeclarations]: Found specification of procedure pidff_check_usage [2023-12-02 18:59:09,724 INFO L138 BoogieDeclarations]: Found implementation of procedure pidff_check_usage [2023-12-02 18:59:09,724 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_mmc_sdio_func_check_final_state [2023-12-02 18:59:09,724 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_mmc_sdio_func_check_final_state [2023-12-02 18:59:09,724 INFO L130 BoogieDeclarations]: Found specification of procedure usb_autopm_get_interface [2023-12-02 18:59:09,724 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_autopm_get_interface [2023-12-02 18:59:09,724 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2023-12-02 18:59:09,724 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2023-12-02 18:59:09,725 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_dir_in [2023-12-02 18:59:09,725 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_dir_in [2023-12-02 18:59:09,725 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2023-12-02 18:59:09,725 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2023-12-02 18:59:09,725 INFO L130 BoogieDeclarations]: Found specification of procedure hid_suspend [2023-12-02 18:59:09,725 INFO L138 BoogieDeclarations]: Found implementation of procedure hid_suspend [2023-12-02 18:59:09,725 INFO L130 BoogieDeclarations]: Found specification of procedure pidff_erase_pid [2023-12-02 18:59:09,725 INFO L138 BoogieDeclarations]: Found implementation of procedure pidff_erase_pid [2023-12-02 18:59:09,725 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2023-12-02 18:59:09,725 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2023-12-02 18:59:09,725 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2023-12-02 18:59:09,725 INFO L130 BoogieDeclarations]: Found specification of procedure hid_submit_out [2023-12-02 18:59:09,726 INFO L138 BoogieDeclarations]: Found implementation of procedure hid_submit_out [2023-12-02 18:59:09,726 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_108 [2023-12-02 18:59:09,726 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_108 [2023-12-02 18:59:09,726 INFO L130 BoogieDeclarations]: Found specification of procedure hid_output_report [2023-12-02 18:59:09,726 INFO L138 BoogieDeclarations]: Found implementation of procedure hid_output_report [2023-12-02 18:59:09,726 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2023-12-02 18:59:09,726 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2023-12-02 18:59:09,726 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_request_check_final_state [2023-12-02 18:59:09,726 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_request_check_final_state [2023-12-02 18:59:09,726 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_lock_existancelock_of_hiddev [2023-12-02 18:59:09,726 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_lock_existancelock_of_hiddev [2023-12-02 18:59:09,726 INFO L130 BoogieDeclarations]: Found specification of procedure hid_find_max_report [2023-12-02 18:59:09,727 INFO L138 BoogieDeclarations]: Found implementation of procedure hid_find_max_report [2023-12-02 18:59:09,727 INFO L130 BoogieDeclarations]: Found specification of procedure pidff_autocenter [2023-12-02 18:59:09,727 INFO L138 BoogieDeclarations]: Found implementation of procedure pidff_autocenter [2023-12-02 18:59:09,727 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2023-12-02 18:59:09,727 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2023-12-02 18:59:09,727 INFO L130 BoogieDeclarations]: Found specification of procedure hiddev_ioctl [2023-12-02 18:59:09,727 INFO L138 BoogieDeclarations]: Found implementation of procedure hiddev_ioctl [2023-12-02 18:59:09,727 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_bh_check_final_state [2023-12-02 18:59:09,727 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_bh_check_final_state [2023-12-02 18:59:09,727 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-12-02 18:59:09,727 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_genhd_check_final_state [2023-12-02 18:59:09,728 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_genhd_check_final_state [2023-12-02 18:59:09,728 INFO L130 BoogieDeclarations]: Found specification of procedure hid_submit_ctrl [2023-12-02 18:59:09,728 INFO L138 BoogieDeclarations]: Found implementation of procedure hid_submit_ctrl [2023-12-02 18:59:09,728 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irq_120 [2023-12-02 18:59:09,728 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irq_120 [2023-12-02 18:59:09,728 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2023-12-02 18:59:09,728 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2023-12-02 18:59:09,728 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~pm_message_t~0~TO~int [2023-12-02 18:59:09,728 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~pm_message_t~0~TO~int [2023-12-02 18:59:09,728 INFO L130 BoogieDeclarations]: Found specification of procedure usbhid_restart_out_queue [2023-12-02 18:59:09,728 INFO L138 BoogieDeclarations]: Found implementation of procedure usbhid_restart_out_queue [2023-12-02 18:59:09,728 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2023-12-02 18:59:09,729 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2023-12-02 18:59:09,729 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_dev_dbg [2023-12-02 18:59:09,729 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_dev_dbg [2023-12-02 18:59:09,729 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_srcu_check_final_state [2023-12-02 18:59:09,729 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_srcu_check_final_state [2023-12-02 18:59:09,729 INFO L130 BoogieDeclarations]: Found specification of procedure usbhid_stop [2023-12-02 18:59:09,729 INFO L138 BoogieDeclarations]: Found implementation of procedure usbhid_stop [2023-12-02 18:59:09,729 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-12-02 18:59:09,729 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer [2023-12-02 18:59:09,729 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer [2023-12-02 18:59:09,729 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 18:59:09,730 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2023-12-02 18:59:09,730 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2023-12-02 18:59:09,730 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-12-02 18:59:09,730 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2023-12-02 18:59:09,730 INFO L130 BoogieDeclarations]: Found specification of procedure hid_cease_io [2023-12-02 18:59:09,730 INFO L138 BoogieDeclarations]: Found implementation of procedure hid_cease_io [2023-12-02 18:59:09,730 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2023-12-02 18:59:09,730 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2023-12-02 18:59:09,730 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2023-12-02 18:59:09,730 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2023-12-02 18:59:09,730 INFO L130 BoogieDeclarations]: Found specification of procedure usb_control_msg [2023-12-02 18:59:09,730 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_control_msg [2023-12-02 18:59:09,731 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_alloc_irq_check_alloc_flags [2023-12-02 18:59:09,731 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_alloc_irq_check_alloc_flags [2023-12-02 18:59:09,731 INFO L130 BoogieDeclarations]: Found specification of procedure hid_hw_wait [2023-12-02 18:59:09,731 INFO L138 BoogieDeclarations]: Found implementation of procedure hid_hw_wait [2023-12-02 18:59:09,731 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2023-12-02 18:59:09,731 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2023-12-02 18:59:09,731 INFO L130 BoogieDeclarations]: Found specification of procedure hid_start_in [2023-12-02 18:59:09,731 INFO L138 BoogieDeclarations]: Found implementation of procedure hid_start_in [2023-12-02 18:59:09,731 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~TO~VOID [2023-12-02 18:59:09,731 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~TO~VOID [2023-12-02 18:59:09,731 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2023-12-02 18:59:09,732 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2023-12-02 18:59:09,732 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_lock_hid_open_mut [2023-12-02 18:59:09,732 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_lock_hid_open_mut [2023-12-02 18:59:09,732 INFO L130 BoogieDeclarations]: Found specification of procedure hid_io_error [2023-12-02 18:59:09,732 INFO L138 BoogieDeclarations]: Found implementation of procedure hid_io_error [2023-12-02 18:59:09,732 INFO L130 BoogieDeclarations]: Found specification of procedure finish_wait [2023-12-02 18:59:09,732 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_wait [2023-12-02 18:59:09,732 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 18:59:09,732 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 18:59:09,732 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-12-02 18:59:09,732 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2023-12-02 18:59:09,732 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2023-12-02 18:59:09,733 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2023-12-02 18:59:09,733 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2023-12-02 18:59:09,733 INFO L130 BoogieDeclarations]: Found specification of procedure strlcat [2023-12-02 18:59:09,733 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcat [2023-12-02 18:59:09,733 INFO L130 BoogieDeclarations]: Found specification of procedure hid_cancel_delayed_stuff [2023-12-02 18:59:09,733 INFO L138 BoogieDeclarations]: Found implementation of procedure hid_cancel_delayed_stuff [2023-12-02 18:59:09,733 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-12-02 18:59:09,733 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-12-02 18:59:09,733 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_spinlock_spin_unlock_lock_of_usbhid_device [2023-12-02 18:59:09,733 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_spinlock_spin_unlock_lock_of_usbhid_device [2023-12-02 18:59:09,733 INFO L130 BoogieDeclarations]: Found specification of procedure hiddev_lookup_report [2023-12-02 18:59:09,733 INFO L138 BoogieDeclarations]: Found implementation of procedure hiddev_lookup_report [2023-12-02 18:59:09,734 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_sock_check_final_state [2023-12-02 18:59:09,734 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_sock_check_final_state [2023-12-02 18:59:09,734 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_urb_usb_free_urb [2023-12-02 18:59:09,734 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_urb_usb_free_urb [2023-12-02 18:59:09,734 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_gadget_check_final_state [2023-12-02 18:59:09,734 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_gadget_check_final_state [2023-12-02 18:59:09,734 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-02 18:59:09,734 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2023-12-02 18:59:09,734 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2023-12-02 18:59:09,734 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_fs_sysfs_check_final_state [2023-12-02 18:59:09,734 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_fs_sysfs_check_final_state [2023-12-02 18:59:09,734 INFO L130 BoogieDeclarations]: Found specification of procedure usbhid_submit_report [2023-12-02 18:59:09,735 INFO L138 BoogieDeclarations]: Found implementation of procedure usbhid_submit_report [2023-12-02 18:59:09,735 INFO L130 BoogieDeclarations]: Found specification of procedure usbhid_mark_busy [2023-12-02 18:59:09,735 INFO L138 BoogieDeclarations]: Found implementation of procedure usbhid_mark_busy [2023-12-02 18:59:09,735 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-12-02 18:59:09,735 INFO L130 BoogieDeclarations]: Found specification of procedure hid_set_idle [2023-12-02 18:59:09,735 INFO L138 BoogieDeclarations]: Found implementation of procedure hid_set_idle [2023-12-02 18:59:09,735 INFO L130 BoogieDeclarations]: Found specification of procedure pidff_set [2023-12-02 18:59:09,735 INFO L138 BoogieDeclarations]: Found implementation of procedure pidff_set [2023-12-02 18:59:09,735 INFO L130 BoogieDeclarations]: Found specification of procedure hid_reset_resume [2023-12-02 18:59:09,735 INFO L138 BoogieDeclarations]: Found implementation of procedure hid_reset_resume [2023-12-02 18:59:09,735 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2023-12-02 18:59:09,735 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2023-12-02 18:59:09,735 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2023-12-02 18:59:09,736 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2023-12-02 18:59:09,736 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2023-12-02 18:59:09,736 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2023-12-02 18:59:09,736 INFO L130 BoogieDeclarations]: Found specification of procedure hid_alloc_report_buf [2023-12-02 18:59:09,736 INFO L138 BoogieDeclarations]: Found implementation of procedure hid_alloc_report_buf [2023-12-02 18:59:09,736 INFO L130 BoogieDeclarations]: Found specification of procedure pidff_find_reports [2023-12-02 18:59:09,736 INFO L138 BoogieDeclarations]: Found implementation of procedure pidff_find_reports [2023-12-02 18:59:09,736 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2023-12-02 18:59:09,736 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2023-12-02 18:59:09,736 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_urb_usb_alloc_urb [2023-12-02 18:59:09,736 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_urb_usb_alloc_urb [2023-12-02 18:59:09,736 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_check_final_state [2023-12-02 18:59:09,737 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_check_final_state [2023-12-02 18:59:09,737 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_urb_check_final_state [2023-12-02 18:59:09,737 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_urb_check_final_state [2023-12-02 18:59:09,737 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2023-12-02 18:59:09,737 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2023-12-02 18:59:09,737 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2023-12-02 18:59:09,737 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2023-12-02 18:59:09,737 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2023-12-02 18:59:09,737 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2023-12-02 18:59:09,737 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-12-02 18:59:09,737 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_pr_debug [2023-12-02 18:59:09,737 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_pr_debug [2023-12-02 18:59:09,738 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2023-12-02 18:59:09,738 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2023-12-02 18:59:09,738 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-12-02 18:59:09,738 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-12-02 18:59:09,738 INFO L130 BoogieDeclarations]: Found specification of procedure usbhid_restart_ctrl_queue [2023-12-02 18:59:09,738 INFO L138 BoogieDeclarations]: Found implementation of procedure usbhid_restart_ctrl_queue [2023-12-02 18:59:09,738 INFO L130 BoogieDeclarations]: Found specification of procedure pidff_reset [2023-12-02 18:59:09,738 INFO L138 BoogieDeclarations]: Found implementation of procedure pidff_reset [2023-12-02 18:59:09,738 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_lock_interruptible_or_killable_thread_lock_of_hiddev_list [2023-12-02 18:59:09,738 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_lock_interruptible_or_killable_thread_lock_of_hiddev_list [2023-12-02 18:59:09,738 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2023-12-02 18:59:09,738 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2023-12-02 18:59:09,738 INFO L130 BoogieDeclarations]: Found specification of procedure usbhid_lookup_quirk [2023-12-02 18:59:09,739 INFO L138 BoogieDeclarations]: Found implementation of procedure usbhid_lookup_quirk [2023-12-02 18:59:09,739 INFO L130 BoogieDeclarations]: Found specification of procedure usb_string [2023-12-02 18:59:09,739 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_string [2023-12-02 18:59:09,739 INFO L130 BoogieDeclarations]: Found specification of procedure hid_resume [2023-12-02 18:59:09,739 INFO L138 BoogieDeclarations]: Found implementation of procedure hid_resume [2023-12-02 18:59:09,739 INFO L130 BoogieDeclarations]: Found specification of procedure hid_get_class_descriptor [2023-12-02 18:59:09,739 INFO L138 BoogieDeclarations]: Found implementation of procedure hid_get_class_descriptor [2023-12-02 18:59:09,739 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_107 [2023-12-02 18:59:09,739 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_107 [2023-12-02 18:59:09,739 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_96 [2023-12-02 18:59:09,739 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_96 [2023-12-02 18:59:09,739 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_97 [2023-12-02 18:59:09,739 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_97 [2023-12-02 18:59:09,740 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_coherent_check_final_state [2023-12-02 18:59:09,740 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_coherent_check_final_state [2023-12-02 18:59:09,740 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_unlock_thread_lock_of_hiddev_list [2023-12-02 18:59:09,740 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_unlock_thread_lock_of_hiddev_list [2023-12-02 18:59:09,740 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2023-12-02 18:59:09,740 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2023-12-02 18:59:09,740 INFO L130 BoogieDeclarations]: Found specification of procedure pidff_playback_pid [2023-12-02 18:59:09,740 INFO L138 BoogieDeclarations]: Found implementation of procedure pidff_playback_pid [2023-12-02 18:59:09,740 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-12-02 18:59:09,740 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-12-02 18:59:09,740 INFO L130 BoogieDeclarations]: Found specification of procedure usb_block_urb [2023-12-02 18:59:09,740 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_block_urb [2023-12-02 18:59:09,741 INFO L130 BoogieDeclarations]: Found specification of procedure hid_retry_timeout [2023-12-02 18:59:09,741 INFO L138 BoogieDeclarations]: Found implementation of procedure hid_retry_timeout [2023-12-02 18:59:09,741 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_timer_timer_instance_3 [2023-12-02 18:59:09,741 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_timer_timer_instance_3 [2023-12-02 18:59:09,741 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_coherent_usb_alloc_coherent [2023-12-02 18:59:09,741 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_coherent_usb_alloc_coherent [2023-12-02 18:59:09,741 INFO L130 BoogieDeclarations]: Found specification of procedure __usb_get_extra_descriptor [2023-12-02 18:59:09,741 INFO L138 BoogieDeclarations]: Found implementation of procedure __usb_get_extra_descriptor [2023-12-02 18:59:09,741 INFO L130 BoogieDeclarations]: Found specification of procedure usbhid_init_reports [2023-12-02 18:59:09,741 INFO L138 BoogieDeclarations]: Found implementation of procedure usbhid_init_reports [2023-12-02 18:59:09,741 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_unlock_hid_open_mut [2023-12-02 18:59:09,741 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_unlock_hid_open_mut [2023-12-02 18:59:09,741 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_arch_io_check_final_state [2023-12-02 18:59:09,741 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_arch_io_check_final_state [2023-12-02 18:59:09,742 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_module_check_final_state [2023-12-02 18:59:09,742 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_module_check_final_state [2023-12-02 18:59:09,742 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2023-12-02 18:59:09,742 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2023-12-02 18:59:09,742 INFO L130 BoogieDeclarations]: Found specification of procedure usb_unpoison_urb [2023-12-02 18:59:09,742 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_unpoison_urb [2023-12-02 18:59:09,742 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2023-12-02 18:59:09,742 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2023-12-02 18:59:09,742 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2023-12-02 18:59:09,742 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2023-12-02 18:59:09,742 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_queue_check_final_state [2023-12-02 18:59:09,742 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_queue_check_final_state [2023-12-02 18:59:09,742 INFO L130 BoogieDeclarations]: Found specification of procedure hid_resume_common [2023-12-02 18:59:09,743 INFO L138 BoogieDeclarations]: Found implementation of procedure hid_resume_common [2023-12-02 18:59:09,743 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-02 18:59:09,743 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer_sync [2023-12-02 18:59:09,743 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer_sync [2023-12-02 18:59:09,743 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2023-12-02 18:59:09,743 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2023-12-02 18:59:09,743 INFO L130 BoogieDeclarations]: Found specification of procedure hid_free_buffers [2023-12-02 18:59:09,743 INFO L138 BoogieDeclarations]: Found implementation of procedure hid_free_buffers [2023-12-02 18:59:09,743 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-12-02 18:59:09,743 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2023-12-02 18:59:09,743 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2023-12-02 18:59:09,743 INFO L130 BoogieDeclarations]: Found specification of procedure hid_pidff_init [2023-12-02 18:59:09,743 INFO L138 BoogieDeclarations]: Found implementation of procedure hid_pidff_init [2023-12-02 18:59:09,744 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2023-12-02 18:59:09,744 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2023-12-02 18:59:09,744 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-12-02 18:59:09,744 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_in_interrupt_context [2023-12-02 18:59:09,744 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_in_interrupt_context [2023-12-02 18:59:09,744 INFO L130 BoogieDeclarations]: Found specification of procedure usb_autopm_put_interface [2023-12-02 18:59:09,744 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_autopm_put_interface [2023-12-02 18:59:09,744 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_after_alloc [2023-12-02 18:59:09,744 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_after_alloc [2023-12-02 18:59:09,744 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_unlock_existancelock_of_hiddev [2023-12-02 18:59:09,744 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_unlock_existancelock_of_hiddev [2023-12-02 18:59:09,744 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2023-12-02 18:59:09,744 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2023-12-02 18:59:09,744 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_register_reset_error_counter [2023-12-02 18:59:09,745 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_register_reset_error_counter [2023-12-02 18:59:09,745 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2023-12-02 18:59:09,745 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2023-12-02 18:59:09,745 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2023-12-02 18:59:09,745 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2023-12-02 18:59:09,745 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2023-12-02 18:59:09,745 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2023-12-02 18:59:09,745 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_timer_instance_callback_3_2 [2023-12-02 18:59:09,745 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_timer_instance_callback_3_2 [2023-12-02 18:59:09,745 INFO L130 BoogieDeclarations]: Found specification of procedure vfree [2023-12-02 18:59:09,745 INFO L138 BoogieDeclarations]: Found implementation of procedure vfree [2023-12-02 18:59:09,745 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2023-12-02 18:59:09,745 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2023-12-02 18:59:09,745 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_lib_idr_check_final_state [2023-12-02 18:59:09,746 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_lib_idr_check_final_state [2023-12-02 18:59:09,746 INFO L130 BoogieDeclarations]: Found specification of procedure usbhid_parse [2023-12-02 18:59:09,746 INFO L138 BoogieDeclarations]: Found implementation of procedure usbhid_parse [2023-12-02 18:59:09,746 INFO L130 BoogieDeclarations]: Found specification of procedure usb_autopm_put_interface_async [2023-12-02 18:59:09,746 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_autopm_put_interface_async [2023-12-02 18:59:09,746 INFO L130 BoogieDeclarations]: Found specification of procedure usbhid_wait_io [2023-12-02 18:59:09,746 INFO L138 BoogieDeclarations]: Found implementation of procedure usbhid_wait_io [2023-12-02 18:59:09,746 INFO L130 BoogieDeclarations]: Found specification of procedure usbhid_put_power [2023-12-02 18:59:09,746 INFO L138 BoogieDeclarations]: Found implementation of procedure usbhid_put_power [2023-12-02 18:59:09,746 INFO L130 BoogieDeclarations]: Found specification of procedure pidff_check_autocenter [2023-12-02 18:59:09,746 INFO L138 BoogieDeclarations]: Found implementation of procedure pidff_check_autocenter [2023-12-02 18:59:09,746 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2023-12-02 18:59:09,746 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2023-12-02 18:59:09,747 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer_99 [2023-12-02 18:59:09,747 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer_99 [2023-12-02 18:59:09,747 INFO L130 BoogieDeclarations]: Found specification of procedure pidff_find_special_keys [2023-12-02 18:59:09,747 INFO L138 BoogieDeclarations]: Found implementation of procedure pidff_find_special_keys [2023-12-02 18:59:09,747 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_register_reset_error_counter [2023-12-02 18:59:09,747 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_register_reset_error_counter [2023-12-02 18:59:09,747 INFO L130 BoogieDeclarations]: Found specification of procedure down_write [2023-12-02 18:59:09,747 INFO L138 BoogieDeclarations]: Found implementation of procedure down_write [2023-12-02 18:59:09,747 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2023-12-02 18:59:09,747 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2023-12-02 18:59:09,747 INFO L130 BoogieDeclarations]: Found specification of procedure dev_warn [2023-12-02 18:59:09,747 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_warn [2023-12-02 18:59:09,747 INFO L130 BoogieDeclarations]: Found specification of procedure interface_to_usbdev [2023-12-02 18:59:09,748 INFO L138 BoogieDeclarations]: Found implementation of procedure interface_to_usbdev [2023-12-02 18:59:09,748 INFO L130 BoogieDeclarations]: Found specification of procedure hid_hw_request [2023-12-02 18:59:09,748 INFO L138 BoogieDeclarations]: Found implementation of procedure hid_hw_request [2023-12-02 18:59:09,748 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_intfdata [2023-12-02 18:59:09,748 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_intfdata [2023-12-02 18:59:09,748 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-12-02 18:59:09,748 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-12-02 18:59:09,748 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-12-02 18:59:09,748 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2023-12-02 18:59:09,748 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2023-12-02 18:59:09,748 INFO L130 BoogieDeclarations]: Found specification of procedure usb_autopm_put_interface_no_suspend [2023-12-02 18:59:09,748 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_autopm_put_interface_no_suspend [2023-12-02 18:59:09,748 INFO L130 BoogieDeclarations]: Found specification of procedure usb_autopm_get_interface_no_resume [2023-12-02 18:59:09,749 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_autopm_get_interface_no_resume [2023-12-02 18:59:09,749 INFO L130 BoogieDeclarations]: Found specification of procedure usbhid_disconnect [2023-12-02 18:59:09,749 INFO L138 BoogieDeclarations]: Found implementation of procedure usbhid_disconnect [2023-12-02 18:59:09,749 INFO L130 BoogieDeclarations]: Found specification of procedure usb_unlink_urb [2023-12-02 18:59:09,749 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_unlink_urb [2023-12-02 18:59:09,749 INFO L130 BoogieDeclarations]: Found specification of procedure dev_notice [2023-12-02 18:59:09,749 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_notice [2023-12-02 18:59:09,749 INFO L130 BoogieDeclarations]: Found specification of procedure hid_destroy_device [2023-12-02 18:59:09,749 INFO L138 BoogieDeclarations]: Found implementation of procedure hid_destroy_device [2023-12-02 18:59:09,749 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_coherent_usb_free_coherent [2023-12-02 18:59:09,749 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_coherent_usb_free_coherent [2023-12-02 18:59:09,749 INFO L130 BoogieDeclarations]: Found specification of procedure usbhid_open [2023-12-02 18:59:09,749 INFO L138 BoogieDeclarations]: Found implementation of procedure usbhid_open [2023-12-02 18:59:09,749 INFO L130 BoogieDeclarations]: Found specification of procedure up_write [2023-12-02 18:59:09,750 INFO L138 BoogieDeclarations]: Found implementation of procedure up_write [2023-12-02 18:59:09,750 INFO L130 BoogieDeclarations]: Found specification of procedure pidff_rescale [2023-12-02 18:59:09,750 INFO L138 BoogieDeclarations]: Found implementation of procedure pidff_rescale [2023-12-02 18:59:09,750 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-12-02 18:59:09,750 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2023-12-02 18:59:09,750 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2023-12-02 18:59:09,750 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-12-02 18:59:09,750 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-12-02 18:59:09,750 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2023-12-02 18:59:09,750 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2023-12-02 18:59:09,750 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_rtnetlink_check_final_state [2023-12-02 18:59:09,750 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_rtnetlink_check_final_state [2023-12-02 18:59:09,751 INFO L130 BoogieDeclarations]: Found specification of procedure usbhid_close [2023-12-02 18:59:09,751 INFO L138 BoogieDeclarations]: Found implementation of procedure usbhid_close [2023-12-02 18:59:09,751 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2023-12-02 18:59:09,751 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2023-12-02 18:59:09,751 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dispatch_instance_register_7_2 [2023-12-02 18:59:09,751 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dispatch_instance_register_7_2 [2023-12-02 18:59:09,751 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_alloc_usb_lock_check_alloc_flags [2023-12-02 18:59:09,751 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_alloc_usb_lock_check_alloc_flags [2023-12-02 18:59:09,751 INFO L130 BoogieDeclarations]: Found specification of procedure usb_autopm_get_interface_async [2023-12-02 18:59:09,751 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_autopm_get_interface_async [2023-12-02 18:59:09,751 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2023-12-02 18:59:09,751 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2023-12-02 18:59:09,751 INFO L130 BoogieDeclarations]: Found specification of procedure pidff_find_fields [2023-12-02 18:59:09,752 INFO L138 BoogieDeclarations]: Found implementation of procedure pidff_find_fields [2023-12-02 18:59:09,752 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_linux_kernel_locking_spinlock_spin_lock [2023-12-02 18:59:09,752 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_linux_kernel_locking_spinlock_spin_lock [2023-12-02 18:59:09,752 INFO L130 BoogieDeclarations]: Found specification of procedure usbhid_quirks_exit [2023-12-02 18:59:09,752 INFO L138 BoogieDeclarations]: Found implementation of procedure usbhid_quirks_exit [2023-12-02 18:59:09,752 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2023-12-02 18:59:09,752 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2023-12-02 18:59:09,752 INFO L130 BoogieDeclarations]: Found specification of procedure usbhid_restart_queues [2023-12-02 18:59:09,752 INFO L138 BoogieDeclarations]: Found implementation of procedure usbhid_restart_queues [2023-12-02 18:59:09,752 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_rwlock_check_final_state [2023-12-02 18:59:09,752 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_rwlock_check_final_state [2023-12-02 18:59:09,752 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_int_urb [2023-12-02 18:59:09,752 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_int_urb [2023-12-02 18:59:09,753 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-12-02 18:59:09,753 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-12-02 18:59:09,753 INFO L130 BoogieDeclarations]: Found specification of procedure hid_device_io_stop [2023-12-02 18:59:09,753 INFO L138 BoogieDeclarations]: Found implementation of procedure hid_device_io_stop [2023-12-02 18:59:09,753 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_fs_char_dev_check_final_state [2023-12-02 18:59:09,753 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_fs_char_dev_check_final_state [2023-12-02 18:59:09,753 INFO L130 BoogieDeclarations]: Found specification of procedure usbhid_start [2023-12-02 18:59:09,753 INFO L138 BoogieDeclarations]: Found implementation of procedure usbhid_start [2023-12-02 18:59:09,753 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_drivers_base_class_check_final_state [2023-12-02 18:59:09,753 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_drivers_base_class_check_final_state [2023-12-02 18:59:09,753 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2023-12-02 18:59:09,753 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2023-12-02 18:59:09,753 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2023-12-02 18:59:09,754 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2023-12-02 18:59:09,754 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_spinlock_spin_unlock_list_lock_of_hiddev [2023-12-02 18:59:09,754 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_spinlock_spin_unlock_list_lock_of_hiddev [2023-12-02 18:59:09,754 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2023-12-02 18:59:09,754 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2023-12-02 18:59:09,754 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2023-12-02 18:59:09,754 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2023-12-02 18:59:09,754 INFO L130 BoogieDeclarations]: Found specification of procedure hid_pre_reset [2023-12-02 18:59:09,754 INFO L138 BoogieDeclarations]: Found implementation of procedure hid_pre_reset [2023-12-02 18:59:09,754 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_sched_check_final_state [2023-12-02 18:59:09,754 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_sched_check_final_state [2023-12-02 18:59:09,754 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_spinlock_spin_lock_list_lock_of_hiddev [2023-12-02 18:59:09,754 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_spinlock_spin_lock_list_lock_of_hiddev [2023-12-02 18:59:09,755 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2023-12-02 18:59:09,755 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2023-12-02 18:59:09,755 INFO L130 BoogieDeclarations]: Found specification of procedure hid_post_reset [2023-12-02 18:59:09,755 INFO L138 BoogieDeclarations]: Found implementation of procedure hid_post_reset [2023-12-02 18:59:09,755 INFO L130 BoogieDeclarations]: Found specification of procedure usbhid_get_power [2023-12-02 18:59:09,755 INFO L138 BoogieDeclarations]: Found implementation of procedure usbhid_get_power [2023-12-02 18:59:09,755 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 18:59:09,755 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_irq_119 [2023-12-02 18:59:09,755 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_irq_119 [2023-12-02 18:59:10,857 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 18:59:10,862 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 18:59:11,138 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-12-02 18:59:19,939 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 18:59:21,700 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 18:59:21,700 INFO L309 CfgBuilder]: Removed 6 assume(true) statements. [2023-12-02 18:59:21,702 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 06:59:21 BoogieIcfgContainer [2023-12-02 18:59:21,703 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 18:59:21,705 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 18:59:21,705 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 18:59:21,707 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 18:59:21,707 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 06:59:02" (1/3) ... [2023-12-02 18:59:21,708 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3879d883 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 06:59:21, skipping insertion in model container [2023-12-02 18:59:21,708 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:59:08" (2/3) ... [2023-12-02 18:59:21,708 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3879d883 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 06:59:21, skipping insertion in model container [2023-12-02 18:59:21,708 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 06:59:21" (3/3) ... [2023-12-02 18:59:21,710 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.0-rc1---drivers--hid--usbhid--usbhid.ko.cil.i [2023-12-02 18:59:21,726 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 18:59:21,726 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 33 error locations. [2023-12-02 18:59:21,806 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 18:59:21,811 INFO L357 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=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@5eb40dde, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 18:59:21,811 INFO L358 AbstractCegarLoop]: Starting to check reachability of 33 error locations. [2023-12-02 18:59:21,826 INFO L276 IsEmpty]: Start isEmpty. Operand has 2675 states, 1599 states have (on average 1.33270794246404) internal successors, (2131), 1686 states have internal predecessors, (2131), 852 states have call successors, (852), 192 states have call predecessors, (852), 191 states have return successors, (846), 839 states have call predecessors, (846), 846 states have call successors, (846) [2023-12-02 18:59:21,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-12-02 18:59:21,833 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 18:59:21,834 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 18:59:21,834 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_linux_alloc_irq_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2023-12-02 18:59:21,838 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 18:59:21,839 INFO L85 PathProgramCache]: Analyzing trace with hash 1263053183, now seen corresponding path program 1 times [2023-12-02 18:59:21,847 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 18:59:21,847 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1668681094] [2023-12-02 18:59:21,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 18:59:21,847 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 18:59:22,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 18:59:23,782 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 18:59:23,782 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 18:59:23,782 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1668681094] [2023-12-02 18:59:23,783 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1668681094] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 18:59:23,783 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 18:59:23,783 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-02 18:59:23,784 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [939700927] [2023-12-02 18:59:23,785 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 18:59:23,788 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-02 18:59:23,788 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 18:59:23,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-02 18:59:23,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-02 18:59:23,815 INFO L87 Difference]: Start difference. First operand has 2675 states, 1599 states have (on average 1.33270794246404) internal successors, (2131), 1686 states have internal predecessors, (2131), 852 states have call successors, (852), 192 states have call predecessors, (852), 191 states have return successors, (846), 839 states have call predecessors, (846), 846 states have call successors, (846) Second operand has 6 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 1 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2023-12-02 18:59:29,213 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 18:59:34,684 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 18:59:35,872 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 18:59:38,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 18:59:38,324 INFO L93 Difference]: Finished difference Result 5505 states and 8089 transitions. [2023-12-02 18:59:38,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-02 18:59:38,326 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 1 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 22 [2023-12-02 18:59:38,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 18:59:38,364 INFO L225 Difference]: With dead ends: 5505 [2023-12-02 18:59:38,365 INFO L226 Difference]: Without dead ends: 2822 [2023-12-02 18:59:38,388 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-12-02 18:59:38,391 INFO L413 NwaCegarLoop]: 3424 mSDtfsCounter, 3744 mSDsluCounter, 8777 mSDsCounter, 0 mSdLazyCounter, 3187 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3746 SdHoareTripleChecker+Valid, 12201 SdHoareTripleChecker+Invalid, 3190 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 3187 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.0s IncrementalHoareTripleChecker+Time [2023-12-02 18:59:38,392 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3746 Valid, 12201 Invalid, 3190 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 3187 Invalid, 1 Unknown, 0 Unchecked, 14.0s Time] [2023-12-02 18:59:38,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2822 states. [2023-12-02 18:59:38,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2822 to 2805. [2023-12-02 18:59:38,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2805 states, 1671 states have (on average 1.303411131059246) internal successors, (2178), 1757 states have internal predecessors, (2178), 883 states have call successors, (883), 221 states have call predecessors, (883), 218 states have return successors, (884), 870 states have call predecessors, (884), 881 states have call successors, (884) [2023-12-02 18:59:38,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2805 states to 2805 states and 3945 transitions. [2023-12-02 18:59:38,722 INFO L78 Accepts]: Start accepts. Automaton has 2805 states and 3945 transitions. Word has length 22 [2023-12-02 18:59:38,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 18:59:38,723 INFO L495 AbstractCegarLoop]: Abstraction has 2805 states and 3945 transitions. [2023-12-02 18:59:38,723 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 1 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2023-12-02 18:59:38,724 INFO L276 IsEmpty]: Start isEmpty. Operand 2805 states and 3945 transitions. [2023-12-02 18:59:38,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2023-12-02 18:59:38,726 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 18:59:38,726 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 18:59:38,726 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-02 18:59:38,726 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2023-12-02 18:59:38,727 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 18:59:38,727 INFO L85 PathProgramCache]: Analyzing trace with hash -111271054, now seen corresponding path program 1 times [2023-12-02 18:59:38,727 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 18:59:38,727 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1823825814] [2023-12-02 18:59:38,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 18:59:38,727 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 18:59:39,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 18:59:39,525 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 18:59:39,525 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 18:59:39,525 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1823825814] [2023-12-02 18:59:39,526 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1823825814] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 18:59:39,526 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 18:59:39,526 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 18:59:39,526 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1205012812] [2023-12-02 18:59:39,526 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 18:59:39,527 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 18:59:39,527 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 18:59:39,528 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 18:59:39,528 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 18:59:39,528 INFO L87 Difference]: Start difference. First operand 2805 states and 3945 transitions. Second operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-12-02 18:59:42,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 18:59:42,174 INFO L93 Difference]: Finished difference Result 5601 states and 7977 transitions. [2023-12-02 18:59:42,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 18:59:42,175 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 28 [2023-12-02 18:59:42,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 18:59:42,199 INFO L225 Difference]: With dead ends: 5601 [2023-12-02 18:59:42,199 INFO L226 Difference]: Without dead ends: 2799 [2023-12-02 18:59:42,216 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 18:59:42,217 INFO L413 NwaCegarLoop]: 3391 mSDtfsCounter, 3744 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 367 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3744 SdHoareTripleChecker+Valid, 3391 SdHoareTripleChecker+Invalid, 367 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 367 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2023-12-02 18:59:42,217 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3744 Valid, 3391 Invalid, 367 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 367 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2023-12-02 18:59:42,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2799 states. [2023-12-02 18:59:42,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2799 to 2799. [2023-12-02 18:59:42,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2799 states, 1666 states have (on average 1.3019207683073228) internal successors, (2169), 1751 states have internal predecessors, (2169), 883 states have call successors, (883), 221 states have call predecessors, (883), 218 states have return successors, (884), 870 states have call predecessors, (884), 881 states have call successors, (884) [2023-12-02 18:59:42,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2799 states to 2799 states and 3936 transitions. [2023-12-02 18:59:42,437 INFO L78 Accepts]: Start accepts. Automaton has 2799 states and 3936 transitions. Word has length 28 [2023-12-02 18:59:42,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 18:59:42,437 INFO L495 AbstractCegarLoop]: Abstraction has 2799 states and 3936 transitions. [2023-12-02 18:59:42,437 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-12-02 18:59:42,437 INFO L276 IsEmpty]: Start isEmpty. Operand 2799 states and 3936 transitions. [2023-12-02 18:59:42,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2023-12-02 18:59:42,440 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 18:59:42,441 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-02 18:59:42,441 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-02 18:59:42,441 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_linux_arch_io_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2023-12-02 18:59:42,441 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 18:59:42,442 INFO L85 PathProgramCache]: Analyzing trace with hash -183938266, now seen corresponding path program 1 times [2023-12-02 18:59:42,442 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 18:59:42,442 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [189098045] [2023-12-02 18:59:42,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 18:59:42,442 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 18:59:42,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 18:59:43,159 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-12-02 18:59:43,159 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 18:59:43,159 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [189098045] [2023-12-02 18:59:43,159 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [189098045] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 18:59:43,160 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 18:59:43,160 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-02 18:59:43,160 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1803544616] [2023-12-02 18:59:43,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 18:59:43,161 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 18:59:43,161 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 18:59:43,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 18:59:43,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-02 18:59:43,162 INFO L87 Difference]: Start difference. First operand 2799 states and 3936 transitions. Second operand has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-02 18:59:47,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 18:59:47,603 INFO L93 Difference]: Finished difference Result 2799 states and 3936 transitions. [2023-12-02 18:59:47,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 18:59:47,604 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (8), 2 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 41 [2023-12-02 18:59:47,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 18:59:47,645 INFO L225 Difference]: With dead ends: 2799 [2023-12-02 18:59:47,645 INFO L226 Difference]: Without dead ends: 2797 [2023-12-02 18:59:47,646 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-02 18:59:47,647 INFO L413 NwaCegarLoop]: 3389 mSDtfsCounter, 3738 mSDsluCounter, 3389 mSDsCounter, 0 mSdLazyCounter, 732 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3738 SdHoareTripleChecker+Valid, 6778 SdHoareTripleChecker+Invalid, 732 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 732 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2023-12-02 18:59:47,648 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3738 Valid, 6778 Invalid, 732 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 732 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2023-12-02 18:59:47,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2797 states. [2023-12-02 18:59:47,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2797 to 2797. [2023-12-02 18:59:47,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2797 states, 1665 states have (on average 1.3015015015015015) internal successors, (2167), 1749 states have internal predecessors, (2167), 883 states have call successors, (883), 221 states have call predecessors, (883), 218 states have return successors, (884), 870 states have call predecessors, (884), 881 states have call successors, (884) [2023-12-02 18:59:47,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2797 states to 2797 states and 3934 transitions. [2023-12-02 18:59:47,834 INFO L78 Accepts]: Start accepts. Automaton has 2797 states and 3934 transitions. Word has length 41 [2023-12-02 18:59:47,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 18:59:47,834 INFO L495 AbstractCegarLoop]: Abstraction has 2797 states and 3934 transitions. [2023-12-02 18:59:47,834 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-02 18:59:47,834 INFO L276 IsEmpty]: Start isEmpty. Operand 2797 states and 3934 transitions. [2023-12-02 18:59:47,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2023-12-02 18:59:47,837 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 18:59:47,838 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-02 18:59:47,838 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-02 18:59:47,838 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_linux_block_genhd_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2023-12-02 18:59:47,838 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 18:59:47,839 INFO L85 PathProgramCache]: Analyzing trace with hash -1464385824, now seen corresponding path program 1 times [2023-12-02 18:59:47,839 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 18:59:47,839 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2004439136] [2023-12-02 18:59:47,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 18:59:47,839 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 18:59:48,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 18:59:48,667 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-12-02 18:59:48,667 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 18:59:48,667 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2004439136] [2023-12-02 18:59:48,667 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2004439136] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 18:59:48,667 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 18:59:48,667 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-02 18:59:48,668 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [707313256] [2023-12-02 18:59:48,668 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 18:59:48,668 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 18:59:48,668 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 18:59:48,669 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 18:59:48,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-02 18:59:48,669 INFO L87 Difference]: Start difference. First operand 2797 states and 3934 transitions. Second operand has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-02 18:59:51,035 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 18:59:53,324 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-02 18:59:54,777 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 18:59:56,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 18:59:56,259 INFO L93 Difference]: Finished difference Result 2797 states and 3934 transitions. [2023-12-02 18:59:56,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 18:59:56,260 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (9), 2 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 46 [2023-12-02 18:59:56,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 18:59:56,273 INFO L225 Difference]: With dead ends: 2797 [2023-12-02 18:59:56,273 INFO L226 Difference]: Without dead ends: 2795 [2023-12-02 18:59:56,274 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-02 18:59:56,275 INFO L413 NwaCegarLoop]: 3387 mSDtfsCounter, 3735 mSDsluCounter, 3387 mSDsCounter, 0 mSdLazyCounter, 732 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3735 SdHoareTripleChecker+Valid, 6774 SdHoareTripleChecker+Invalid, 732 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 732 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.4s IncrementalHoareTripleChecker+Time [2023-12-02 18:59:56,275 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3735 Valid, 6774 Invalid, 732 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 732 Invalid, 0 Unknown, 0 Unchecked, 7.4s Time] [2023-12-02 18:59:56,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2795 states. [2023-12-02 18:59:56,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2795 to 2795. [2023-12-02 18:59:56,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2795 states, 1664 states have (on average 1.3010817307692308) internal successors, (2165), 1747 states have internal predecessors, (2165), 883 states have call successors, (883), 221 states have call predecessors, (883), 218 states have return successors, (884), 870 states have call predecessors, (884), 881 states have call successors, (884) [2023-12-02 18:59:56,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2795 states to 2795 states and 3932 transitions. [2023-12-02 18:59:56,413 INFO L78 Accepts]: Start accepts. Automaton has 2795 states and 3932 transitions. Word has length 46 [2023-12-02 18:59:56,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 18:59:56,414 INFO L495 AbstractCegarLoop]: Abstraction has 2795 states and 3932 transitions. [2023-12-02 18:59:56,414 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-02 18:59:56,414 INFO L276 IsEmpty]: Start isEmpty. Operand 2795 states and 3932 transitions. [2023-12-02 18:59:56,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2023-12-02 18:59:56,417 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 18:59:56,417 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-02 18:59:56,417 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-02 18:59:56,417 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_linux_block_queue_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2023-12-02 18:59:56,418 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 18:59:56,418 INFO L85 PathProgramCache]: Analyzing trace with hash -1447370826, now seen corresponding path program 1 times [2023-12-02 18:59:56,418 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 18:59:56,418 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [437584448] [2023-12-02 18:59:56,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 18:59:56,419 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 18:59:56,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 18:59:57,008 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-12-02 18:59:57,009 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 18:59:57,009 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [437584448] [2023-12-02 18:59:57,009 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [437584448] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 18:59:57,009 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 18:59:57,009 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-02 18:59:57,009 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1423552904] [2023-12-02 18:59:57,009 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 18:59:57,010 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 18:59:57,010 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 18:59:57,010 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 18:59:57,010 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-02 18:59:57,011 INFO L87 Difference]: Start difference. First operand 2795 states and 3932 transitions. Second operand has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-12-02 18:59:59,610 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.42s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:00:01,636 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:00:02,696 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:00:03,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:00:03,276 INFO L93 Difference]: Finished difference Result 2795 states and 3932 transitions. [2023-12-02 19:00:03,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 19:00:03,277 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 2 states have call successors, (10), 2 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 51 [2023-12-02 19:00:03,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:00:03,293 INFO L225 Difference]: With dead ends: 2795 [2023-12-02 19:00:03,294 INFO L226 Difference]: Without dead ends: 2793 [2023-12-02 19:00:03,295 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-02 19:00:03,296 INFO L413 NwaCegarLoop]: 3385 mSDtfsCounter, 3732 mSDsluCounter, 3385 mSDsCounter, 0 mSdLazyCounter, 732 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3732 SdHoareTripleChecker+Valid, 6770 SdHoareTripleChecker+Invalid, 732 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 732 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2023-12-02 19:00:03,296 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3732 Valid, 6770 Invalid, 732 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 732 Invalid, 0 Unknown, 0 Unchecked, 6.1s Time] [2023-12-02 19:00:03,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2793 states. [2023-12-02 19:00:03,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2793 to 2793. [2023-12-02 19:00:03,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2793 states, 1663 states have (on average 1.3006614552014433) internal successors, (2163), 1745 states have internal predecessors, (2163), 883 states have call successors, (883), 221 states have call predecessors, (883), 218 states have return successors, (884), 870 states have call predecessors, (884), 881 states have call successors, (884) [2023-12-02 19:00:03,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2793 states to 2793 states and 3930 transitions. [2023-12-02 19:00:03,512 INFO L78 Accepts]: Start accepts. Automaton has 2793 states and 3930 transitions. Word has length 51 [2023-12-02 19:00:03,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:00:03,513 INFO L495 AbstractCegarLoop]: Abstraction has 2793 states and 3930 transitions. [2023-12-02 19:00:03,514 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-12-02 19:00:03,514 INFO L276 IsEmpty]: Start isEmpty. Operand 2793 states and 3930 transitions. [2023-12-02 19:00:03,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2023-12-02 19:00:03,516 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:00:03,516 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-02 19:00:03,516 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-02 19:00:03,516 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_linux_block_request_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2023-12-02 19:00:03,516 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:00:03,517 INFO L85 PathProgramCache]: Analyzing trace with hash -185285176, now seen corresponding path program 1 times [2023-12-02 19:00:03,517 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:00:03,517 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1272553369] [2023-12-02 19:00:03,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:00:03,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:00:03,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:00:04,333 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-12-02 19:00:04,334 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:00:04,334 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1272553369] [2023-12-02 19:00:04,334 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1272553369] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:00:04,334 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 19:00:04,334 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-02 19:00:04,334 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1873605732] [2023-12-02 19:00:04,335 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:00:04,335 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 19:00:04,335 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 19:00:04,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 19:00:04,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-02 19:00:04,336 INFO L87 Difference]: Start difference. First operand 2793 states and 3930 transitions. Second operand has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-12-02 19:00:08,596 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:00:10,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:00:10,495 INFO L93 Difference]: Finished difference Result 2793 states and 3930 transitions. [2023-12-02 19:00:10,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 19:00:10,495 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (11), 2 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 56 [2023-12-02 19:00:10,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:00:10,508 INFO L225 Difference]: With dead ends: 2793 [2023-12-02 19:00:10,508 INFO L226 Difference]: Without dead ends: 2791 [2023-12-02 19:00:10,509 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-02 19:00:10,509 INFO L413 NwaCegarLoop]: 3383 mSDtfsCounter, 3729 mSDsluCounter, 3383 mSDsCounter, 0 mSdLazyCounter, 732 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3729 SdHoareTripleChecker+Valid, 6766 SdHoareTripleChecker+Invalid, 732 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 732 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2023-12-02 19:00:10,510 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3729 Valid, 6766 Invalid, 732 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 732 Invalid, 0 Unknown, 0 Unchecked, 5.9s Time] [2023-12-02 19:00:10,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2791 states. [2023-12-02 19:00:10,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2791 to 2791. [2023-12-02 19:00:10,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2791 states, 1662 states have (on average 1.3002406738868832) internal successors, (2161), 1743 states have internal predecessors, (2161), 883 states have call successors, (883), 221 states have call predecessors, (883), 218 states have return successors, (884), 870 states have call predecessors, (884), 881 states have call successors, (884) [2023-12-02 19:00:10,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2791 states to 2791 states and 3928 transitions. [2023-12-02 19:00:10,664 INFO L78 Accepts]: Start accepts. Automaton has 2791 states and 3928 transitions. Word has length 56 [2023-12-02 19:00:10,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:00:10,665 INFO L495 AbstractCegarLoop]: Abstraction has 2791 states and 3928 transitions. [2023-12-02 19:00:10,665 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-12-02 19:00:10,665 INFO L276 IsEmpty]: Start isEmpty. Operand 2791 states and 3928 transitions. [2023-12-02 19:00:10,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2023-12-02 19:00:10,667 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:00:10,667 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-02 19:00:10,667 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-02 19:00:10,668 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_linux_drivers_base_class_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2023-12-02 19:00:10,668 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:00:10,668 INFO L85 PathProgramCache]: Analyzing trace with hash 1852352205, now seen corresponding path program 1 times [2023-12-02 19:00:10,668 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:00:10,668 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [79703462] [2023-12-02 19:00:10,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:00:10,669 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:00:11,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:00:11,358 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-12-02 19:00:11,358 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:00:11,358 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [79703462] [2023-12-02 19:00:11,358 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [79703462] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:00:11,358 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 19:00:11,359 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-02 19:00:11,359 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [315343189] [2023-12-02 19:00:11,359 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:00:11,359 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 19:00:11,360 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 19:00:11,360 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 19:00:11,360 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-02 19:00:11,360 INFO L87 Difference]: Start difference. First operand 2791 states and 3928 transitions. Second operand has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-12-02 19:00:14,507 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.80s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:00:16,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:00:16,914 INFO L93 Difference]: Finished difference Result 2791 states and 3928 transitions. [2023-12-02 19:00:16,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 19:00:16,915 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (12), 2 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 61 [2023-12-02 19:00:16,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:00:16,928 INFO L225 Difference]: With dead ends: 2791 [2023-12-02 19:00:16,929 INFO L226 Difference]: Without dead ends: 2789 [2023-12-02 19:00:16,930 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-02 19:00:16,931 INFO L413 NwaCegarLoop]: 3381 mSDtfsCounter, 3726 mSDsluCounter, 3381 mSDsCounter, 0 mSdLazyCounter, 732 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3726 SdHoareTripleChecker+Valid, 6762 SdHoareTripleChecker+Invalid, 732 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 732 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2023-12-02 19:00:16,931 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3726 Valid, 6762 Invalid, 732 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 732 Invalid, 0 Unknown, 0 Unchecked, 5.4s Time] [2023-12-02 19:00:16,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2789 states. [2023-12-02 19:00:17,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2789 to 2789. [2023-12-02 19:00:17,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2789 states, 1661 states have (on average 1.2998193859121012) internal successors, (2159), 1741 states have internal predecessors, (2159), 883 states have call successors, (883), 221 states have call predecessors, (883), 218 states have return successors, (884), 870 states have call predecessors, (884), 881 states have call successors, (884) [2023-12-02 19:00:17,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2789 states to 2789 states and 3926 transitions. [2023-12-02 19:00:17,094 INFO L78 Accepts]: Start accepts. Automaton has 2789 states and 3926 transitions. Word has length 61 [2023-12-02 19:00:17,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:00:17,094 INFO L495 AbstractCegarLoop]: Abstraction has 2789 states and 3926 transitions. [2023-12-02 19:00:17,094 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-12-02 19:00:17,094 INFO L276 IsEmpty]: Start isEmpty. Operand 2789 states and 3926 transitions. [2023-12-02 19:00:17,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2023-12-02 19:00:17,096 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:00:17,096 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-02 19:00:17,096 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-02 19:00:17,097 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_linux_fs_char_dev_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2023-12-02 19:00:17,097 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:00:17,097 INFO L85 PathProgramCache]: Analyzing trace with hash 902877784, now seen corresponding path program 1 times [2023-12-02 19:00:17,097 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:00:17,097 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1109654026] [2023-12-02 19:00:17,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:00:17,097 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:00:17,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:00:17,818 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-12-02 19:00:17,819 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:00:17,819 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1109654026] [2023-12-02 19:00:17,819 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1109654026] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:00:17,819 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 19:00:17,819 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-02 19:00:17,819 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1601592380] [2023-12-02 19:00:17,819 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:00:17,820 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 19:00:17,820 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 19:00:17,820 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 19:00:17,821 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-02 19:00:17,821 INFO L87 Difference]: Start difference. First operand 2789 states and 3926 transitions. Second operand has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-02 19:00:20,787 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:00:23,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:00:23,074 INFO L93 Difference]: Finished difference Result 2789 states and 3926 transitions. [2023-12-02 19:00:23,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 19:00:23,074 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (13), 2 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 66 [2023-12-02 19:00:23,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:00:23,092 INFO L225 Difference]: With dead ends: 2789 [2023-12-02 19:00:23,093 INFO L226 Difference]: Without dead ends: 2787 [2023-12-02 19:00:23,094 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-02 19:00:23,095 INFO L413 NwaCegarLoop]: 3379 mSDtfsCounter, 3723 mSDsluCounter, 3379 mSDsCounter, 0 mSdLazyCounter, 732 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3723 SdHoareTripleChecker+Valid, 6758 SdHoareTripleChecker+Invalid, 732 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 732 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2023-12-02 19:00:23,095 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3723 Valid, 6758 Invalid, 732 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 732 Invalid, 0 Unknown, 0 Unchecked, 5.0s Time] [2023-12-02 19:00:23,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2787 states. [2023-12-02 19:00:23,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2787 to 2787. [2023-12-02 19:00:23,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2787 states, 1660 states have (on average 1.2993975903614459) internal successors, (2157), 1739 states have internal predecessors, (2157), 883 states have call successors, (883), 221 states have call predecessors, (883), 218 states have return successors, (884), 870 states have call predecessors, (884), 881 states have call successors, (884) [2023-12-02 19:00:23,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2787 states to 2787 states and 3924 transitions. [2023-12-02 19:00:23,275 INFO L78 Accepts]: Start accepts. Automaton has 2787 states and 3924 transitions. Word has length 66 [2023-12-02 19:00:23,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:00:23,275 INFO L495 AbstractCegarLoop]: Abstraction has 2787 states and 3924 transitions. [2023-12-02 19:00:23,275 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-02 19:00:23,275 INFO L276 IsEmpty]: Start isEmpty. Operand 2787 states and 3924 transitions. [2023-12-02 19:00:23,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2023-12-02 19:00:23,277 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:00:23,277 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-02 19:00:23,277 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-02 19:00:23,277 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2023-12-02 19:00:23,277 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:00:23,277 INFO L85 PathProgramCache]: Analyzing trace with hash 2028676063, now seen corresponding path program 1 times [2023-12-02 19:00:23,278 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:00:23,278 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1961902594] [2023-12-02 19:00:23,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:00:23,278 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:00:23,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:00:23,852 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-12-02 19:00:23,852 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:00:23,852 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1961902594] [2023-12-02 19:00:23,852 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1961902594] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:00:23,852 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 19:00:23,853 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-02 19:00:23,853 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1127684347] [2023-12-02 19:00:23,853 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:00:23,853 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 19:00:23,853 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 19:00:23,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 19:00:23,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-02 19:00:23,854 INFO L87 Difference]: Start difference. First operand 2787 states and 3924 transitions. Second operand has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-02 19:00:28,889 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.62s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:00:29,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:00:29,739 INFO L93 Difference]: Finished difference Result 2787 states and 3924 transitions. [2023-12-02 19:00:29,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 19:00:29,739 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (14), 2 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 71 [2023-12-02 19:00:29,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:00:29,754 INFO L225 Difference]: With dead ends: 2787 [2023-12-02 19:00:29,754 INFO L226 Difference]: Without dead ends: 2785 [2023-12-02 19:00:29,756 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-02 19:00:29,757 INFO L413 NwaCegarLoop]: 3377 mSDtfsCounter, 3720 mSDsluCounter, 3377 mSDsCounter, 0 mSdLazyCounter, 732 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3720 SdHoareTripleChecker+Valid, 6754 SdHoareTripleChecker+Invalid, 732 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 732 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2023-12-02 19:00:29,757 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3720 Valid, 6754 Invalid, 732 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 732 Invalid, 0 Unknown, 0 Unchecked, 5.7s Time] [2023-12-02 19:00:29,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2785 states. [2023-12-02 19:00:29,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2785 to 2785. [2023-12-02 19:00:29,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2785 states, 1659 states have (on average 1.2989752863170585) internal successors, (2155), 1737 states have internal predecessors, (2155), 883 states have call successors, (883), 221 states have call predecessors, (883), 218 states have return successors, (884), 870 states have call predecessors, (884), 881 states have call successors, (884) [2023-12-02 19:00:29,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2785 states to 2785 states and 3922 transitions. [2023-12-02 19:00:29,961 INFO L78 Accepts]: Start accepts. Automaton has 2785 states and 3922 transitions. Word has length 71 [2023-12-02 19:00:29,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:00:29,962 INFO L495 AbstractCegarLoop]: Abstraction has 2785 states and 3922 transitions. [2023-12-02 19:00:29,962 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-02 19:00:29,962 INFO L276 IsEmpty]: Start isEmpty. Operand 2785 states and 3922 transitions. [2023-12-02 19:00:29,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2023-12-02 19:00:29,963 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:00:29,964 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-02 19:00:29,964 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-12-02 19:00:29,964 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_linux_kernel_locking_rwlock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2023-12-02 19:00:29,964 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:00:29,964 INFO L85 PathProgramCache]: Analyzing trace with hash -748881488, now seen corresponding path program 1 times [2023-12-02 19:00:29,964 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:00:29,964 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1957738741] [2023-12-02 19:00:29,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:00:29,965 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:00:30,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:00:30,613 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-12-02 19:00:30,614 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:00:30,614 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1957738741] [2023-12-02 19:00:30,614 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1957738741] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:00:30,614 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 19:00:30,614 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-02 19:00:30,614 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1341739546] [2023-12-02 19:00:30,614 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:00:30,615 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 19:00:30,615 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 19:00:30,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 19:00:30,616 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-02 19:00:30,616 INFO L87 Difference]: Start difference. First operand 2785 states and 3922 transitions. Second operand has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-02 19:00:33,644 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.70s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:00:36,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:00:36,770 INFO L93 Difference]: Finished difference Result 2785 states and 3922 transitions. [2023-12-02 19:00:36,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 19:00:36,771 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (15), 2 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 76 [2023-12-02 19:00:36,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:00:36,783 INFO L225 Difference]: With dead ends: 2785 [2023-12-02 19:00:36,783 INFO L226 Difference]: Without dead ends: 2783 [2023-12-02 19:00:36,784 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-02 19:00:36,785 INFO L413 NwaCegarLoop]: 3375 mSDtfsCounter, 3717 mSDsluCounter, 3374 mSDsCounter, 0 mSdLazyCounter, 733 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3717 SdHoareTripleChecker+Valid, 6749 SdHoareTripleChecker+Invalid, 733 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 733 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2023-12-02 19:00:36,785 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3717 Valid, 6749 Invalid, 733 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 733 Invalid, 0 Unknown, 0 Unchecked, 5.9s Time] [2023-12-02 19:00:36,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2783 states. [2023-12-02 19:00:36,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2783 to 2783. [2023-12-02 19:00:36,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2783 states, 1658 states have (on average 1.2985524728588662) internal successors, (2153), 1735 states have internal predecessors, (2153), 883 states have call successors, (883), 221 states have call predecessors, (883), 218 states have return successors, (884), 870 states have call predecessors, (884), 881 states have call successors, (884) [2023-12-02 19:00:37,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2783 states to 2783 states and 3920 transitions. [2023-12-02 19:00:37,005 INFO L78 Accepts]: Start accepts. Automaton has 2783 states and 3920 transitions. Word has length 76 [2023-12-02 19:00:37,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:00:37,006 INFO L495 AbstractCegarLoop]: Abstraction has 2783 states and 3920 transitions. [2023-12-02 19:00:37,006 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-02 19:00:37,006 INFO L276 IsEmpty]: Start isEmpty. Operand 2783 states and 3920 transitions. [2023-12-02 19:00:37,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2023-12-02 19:00:37,008 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:00:37,008 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-02 19:00:37,008 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-12-02 19:00:37,008 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_linux_kernel_locking_rwlock_check_final_stateErr1ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2023-12-02 19:00:37,008 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:00:37,009 INFO L85 PathProgramCache]: Analyzing trace with hash 1879623635, now seen corresponding path program 1 times [2023-12-02 19:00:37,009 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:00:37,009 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1056764433] [2023-12-02 19:00:37,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:00:37,009 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:00:37,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:00:37,653 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-12-02 19:00:37,653 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:00:37,653 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1056764433] [2023-12-02 19:00:37,654 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1056764433] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:00:37,654 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 19:00:37,654 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-02 19:00:37,654 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2019748602] [2023-12-02 19:00:37,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:00:37,654 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 19:00:37,655 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 19:00:37,655 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 19:00:37,655 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-02 19:00:37,655 INFO L87 Difference]: Start difference. First operand 2783 states and 3920 transitions. Second operand has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-02 19:00:41,067 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:00:43,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:00:43,753 INFO L93 Difference]: Finished difference Result 2783 states and 3920 transitions. [2023-12-02 19:00:43,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 19:00:43,754 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (15), 2 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 78 [2023-12-02 19:00:43,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:00:43,762 INFO L225 Difference]: With dead ends: 2783 [2023-12-02 19:00:43,762 INFO L226 Difference]: Without dead ends: 2781 [2023-12-02 19:00:43,763 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-02 19:00:43,764 INFO L413 NwaCegarLoop]: 3373 mSDtfsCounter, 3713 mSDsluCounter, 3373 mSDsCounter, 0 mSdLazyCounter, 731 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3713 SdHoareTripleChecker+Valid, 6746 SdHoareTripleChecker+Invalid, 732 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 731 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2023-12-02 19:00:43,764 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3713 Valid, 6746 Invalid, 732 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 731 Invalid, 1 Unknown, 0 Unchecked, 5.8s Time] [2023-12-02 19:00:43,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2781 states. [2023-12-02 19:00:43,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2781 to 2781. [2023-12-02 19:00:43,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2781 states, 1657 states have (on average 1.2981291490645746) internal successors, (2151), 1733 states have internal predecessors, (2151), 883 states have call successors, (883), 221 states have call predecessors, (883), 218 states have return successors, (884), 870 states have call predecessors, (884), 881 states have call successors, (884) [2023-12-02 19:00:43,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2781 states to 2781 states and 3918 transitions. [2023-12-02 19:00:43,983 INFO L78 Accepts]: Start accepts. Automaton has 2781 states and 3918 transitions. Word has length 78 [2023-12-02 19:00:43,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:00:43,984 INFO L495 AbstractCegarLoop]: Abstraction has 2781 states and 3918 transitions. [2023-12-02 19:00:43,984 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-02 19:00:43,984 INFO L276 IsEmpty]: Start isEmpty. Operand 2781 states and 3918 transitions. [2023-12-02 19:00:43,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2023-12-02 19:00:43,986 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:00:43,986 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-02 19:00:43,986 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-12-02 19:00:43,986 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_linux_kernel_module_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2023-12-02 19:00:43,987 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:00:43,987 INFO L85 PathProgramCache]: Analyzing trace with hash -36455286, now seen corresponding path program 1 times [2023-12-02 19:00:43,987 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:00:43,987 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [327958908] [2023-12-02 19:00:43,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:00:43,987 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:00:44,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:00:44,676 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-12-02 19:00:44,676 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:00:44,676 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [327958908] [2023-12-02 19:00:44,676 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [327958908] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:00:44,676 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 19:00:44,676 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-02 19:00:44,677 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [793595396] [2023-12-02 19:00:44,677 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:00:44,677 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 19:00:44,677 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 19:00:44,677 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 19:00:44,677 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-02 19:00:44,678 INFO L87 Difference]: Start difference. First operand 2781 states and 3918 transitions. Second operand has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2023-12-02 19:00:47,594 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:00:50,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:00:50,627 INFO L93 Difference]: Finished difference Result 2781 states and 3918 transitions. [2023-12-02 19:00:50,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 19:00:50,628 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (16), 2 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 83 [2023-12-02 19:00:50,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:00:50,636 INFO L225 Difference]: With dead ends: 2781 [2023-12-02 19:00:50,636 INFO L226 Difference]: Without dead ends: 2779 [2023-12-02 19:00:50,637 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-02 19:00:50,637 INFO L413 NwaCegarLoop]: 3371 mSDtfsCounter, 3712 mSDsluCounter, 3371 mSDsCounter, 0 mSdLazyCounter, 731 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3712 SdHoareTripleChecker+Valid, 6742 SdHoareTripleChecker+Invalid, 732 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 731 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2023-12-02 19:00:50,638 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3712 Valid, 6742 Invalid, 732 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 731 Invalid, 1 Unknown, 0 Unchecked, 5.6s Time] [2023-12-02 19:00:50,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2779 states. [2023-12-02 19:00:50,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2779 to 2779. [2023-12-02 19:00:50,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2779 states, 1656 states have (on average 1.297705314009662) internal successors, (2149), 1731 states have internal predecessors, (2149), 883 states have call successors, (883), 221 states have call predecessors, (883), 218 states have return successors, (884), 870 states have call predecessors, (884), 881 states have call successors, (884) [2023-12-02 19:00:50,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2779 states to 2779 states and 3916 transitions. [2023-12-02 19:00:50,832 INFO L78 Accepts]: Start accepts. Automaton has 2779 states and 3916 transitions. Word has length 83 [2023-12-02 19:00:50,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:00:50,832 INFO L495 AbstractCegarLoop]: Abstraction has 2779 states and 3916 transitions. [2023-12-02 19:00:50,832 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2023-12-02 19:00:50,832 INFO L276 IsEmpty]: Start isEmpty. Operand 2779 states and 3916 transitions. [2023-12-02 19:00:50,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2023-12-02 19:00:50,833 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:00:50,834 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-02 19:00:50,834 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-12-02 19:00:50,834 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_linux_kernel_rcu_update_lock_bh_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2023-12-02 19:00:50,834 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:00:50,834 INFO L85 PathProgramCache]: Analyzing trace with hash 834030713, now seen corresponding path program 1 times [2023-12-02 19:00:50,834 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:00:50,834 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1838495281] [2023-12-02 19:00:50,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:00:50,835 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:00:51,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:00:51,414 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-12-02 19:00:51,414 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:00:51,414 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1838495281] [2023-12-02 19:00:51,414 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1838495281] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:00:51,414 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 19:00:51,414 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-02 19:00:51,414 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1850036162] [2023-12-02 19:00:51,415 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:00:51,415 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 19:00:51,415 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 19:00:51,416 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 19:00:51,416 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-02 19:00:51,416 INFO L87 Difference]: Start difference. First operand 2779 states and 3916 transitions. Second operand has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-12-02 19:00:55,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:00:55,529 INFO L93 Difference]: Finished difference Result 2779 states and 3916 transitions. [2023-12-02 19:00:55,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 19:00:55,530 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (17), 2 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 88 [2023-12-02 19:00:55,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:00:55,537 INFO L225 Difference]: With dead ends: 2779 [2023-12-02 19:00:55,537 INFO L226 Difference]: Without dead ends: 2777 [2023-12-02 19:00:55,538 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-02 19:00:55,538 INFO L413 NwaCegarLoop]: 3369 mSDtfsCounter, 3709 mSDsluCounter, 3369 mSDsCounter, 0 mSdLazyCounter, 732 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3709 SdHoareTripleChecker+Valid, 6738 SdHoareTripleChecker+Invalid, 732 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 732 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2023-12-02 19:00:55,538 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3709 Valid, 6738 Invalid, 732 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 732 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2023-12-02 19:00:55,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2777 states. [2023-12-02 19:00:55,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2777 to 2777. [2023-12-02 19:00:55,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2777 states, 1655 states have (on average 1.2972809667673717) internal successors, (2147), 1729 states have internal predecessors, (2147), 883 states have call successors, (883), 221 states have call predecessors, (883), 218 states have return successors, (884), 870 states have call predecessors, (884), 881 states have call successors, (884) [2023-12-02 19:00:55,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2777 states to 2777 states and 3914 transitions. [2023-12-02 19:00:55,769 INFO L78 Accepts]: Start accepts. Automaton has 2777 states and 3914 transitions. Word has length 88 [2023-12-02 19:00:55,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:00:55,769 INFO L495 AbstractCegarLoop]: Abstraction has 2777 states and 3914 transitions. [2023-12-02 19:00:55,769 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-12-02 19:00:55,769 INFO L276 IsEmpty]: Start isEmpty. Operand 2777 states and 3914 transitions. [2023-12-02 19:00:55,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-12-02 19:00:55,771 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:00:55,771 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-02 19:00:55,771 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-12-02 19:00:55,771 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_linux_kernel_rcu_update_lock_sched_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2023-12-02 19:00:55,771 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:00:55,772 INFO L85 PathProgramCache]: Analyzing trace with hash 1121613887, now seen corresponding path program 1 times [2023-12-02 19:00:55,772 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:00:55,772 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [748958215] [2023-12-02 19:00:55,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:00:55,772 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:00:56,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:00:56,313 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-12-02 19:00:56,313 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:00:56,313 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [748958215] [2023-12-02 19:00:56,313 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [748958215] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:00:56,313 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 19:00:56,314 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-02 19:00:56,314 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1788960470] [2023-12-02 19:00:56,314 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:00:56,314 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 19:00:56,314 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 19:00:56,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 19:00:56,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-02 19:00:56,315 INFO L87 Difference]: Start difference. First operand 2777 states and 3914 transitions. Second operand has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-02 19:00:59,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:00:59,947 INFO L93 Difference]: Finished difference Result 2777 states and 3914 transitions. [2023-12-02 19:00:59,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 19:00:59,948 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (18), 2 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 93 [2023-12-02 19:00:59,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:00:59,954 INFO L225 Difference]: With dead ends: 2777 [2023-12-02 19:00:59,954 INFO L226 Difference]: Without dead ends: 2775 [2023-12-02 19:00:59,955 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-02 19:00:59,955 INFO L413 NwaCegarLoop]: 3367 mSDtfsCounter, 3706 mSDsluCounter, 3367 mSDsCounter, 0 mSdLazyCounter, 732 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3706 SdHoareTripleChecker+Valid, 6734 SdHoareTripleChecker+Invalid, 732 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 732 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2023-12-02 19:00:59,956 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3706 Valid, 6734 Invalid, 732 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 732 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2023-12-02 19:00:59,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2775 states. [2023-12-02 19:01:00,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2775 to 2775. [2023-12-02 19:01:00,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2775 states, 1654 states have (on average 1.296856106408706) internal successors, (2145), 1727 states have internal predecessors, (2145), 883 states have call successors, (883), 221 states have call predecessors, (883), 218 states have return successors, (884), 870 states have call predecessors, (884), 881 states have call successors, (884) [2023-12-02 19:01:00,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2775 states to 2775 states and 3912 transitions. [2023-12-02 19:01:00,173 INFO L78 Accepts]: Start accepts. Automaton has 2775 states and 3912 transitions. Word has length 93 [2023-12-02 19:01:00,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:01:00,173 INFO L495 AbstractCegarLoop]: Abstraction has 2775 states and 3912 transitions. [2023-12-02 19:01:00,173 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-02 19:01:00,173 INFO L276 IsEmpty]: Start isEmpty. Operand 2775 states and 3912 transitions. [2023-12-02 19:01:00,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-12-02 19:01:00,176 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:01:00,176 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-02 19:01:00,176 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-12-02 19:01:00,176 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2023-12-02 19:01:00,176 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:01:00,176 INFO L85 PathProgramCache]: Analyzing trace with hash -315720493, now seen corresponding path program 1 times [2023-12-02 19:01:00,176 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:01:00,176 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1361483251] [2023-12-02 19:01:00,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:01:00,177 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:01:00,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:01:00,699 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-12-02 19:01:00,699 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:01:00,699 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1361483251] [2023-12-02 19:01:00,699 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1361483251] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:01:00,700 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 19:01:00,700 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-02 19:01:00,700 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [190439625] [2023-12-02 19:01:00,700 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:01:00,700 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 19:01:00,700 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 19:01:00,700 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 19:01:00,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-02 19:01:00,701 INFO L87 Difference]: Start difference. First operand 2775 states and 3912 transitions. Second operand has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2023-12-02 19:01:04,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:01:04,842 INFO L93 Difference]: Finished difference Result 2775 states and 3912 transitions. [2023-12-02 19:01:04,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 19:01:04,842 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (19), 2 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 98 [2023-12-02 19:01:04,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:01:04,852 INFO L225 Difference]: With dead ends: 2775 [2023-12-02 19:01:04,852 INFO L226 Difference]: Without dead ends: 2773 [2023-12-02 19:01:04,853 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-02 19:01:04,854 INFO L413 NwaCegarLoop]: 3365 mSDtfsCounter, 3703 mSDsluCounter, 3365 mSDsCounter, 0 mSdLazyCounter, 732 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3703 SdHoareTripleChecker+Valid, 6730 SdHoareTripleChecker+Invalid, 732 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 732 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2023-12-02 19:01:04,854 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3703 Valid, 6730 Invalid, 732 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 732 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2023-12-02 19:01:04,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2773 states. [2023-12-02 19:01:05,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2773 to 2773. [2023-12-02 19:01:05,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2773 states, 1653 states have (on average 1.2964307320024198) internal successors, (2143), 1725 states have internal predecessors, (2143), 883 states have call successors, (883), 221 states have call predecessors, (883), 218 states have return successors, (884), 870 states have call predecessors, (884), 881 states have call successors, (884) [2023-12-02 19:01:05,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2773 states to 2773 states and 3910 transitions. [2023-12-02 19:01:05,116 INFO L78 Accepts]: Start accepts. Automaton has 2773 states and 3910 transitions. Word has length 98 [2023-12-02 19:01:05,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:01:05,117 INFO L495 AbstractCegarLoop]: Abstraction has 2773 states and 3910 transitions. [2023-12-02 19:01:05,117 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2023-12-02 19:01:05,117 INFO L276 IsEmpty]: Start isEmpty. Operand 2773 states and 3910 transitions. [2023-12-02 19:01:05,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2023-12-02 19:01:05,118 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:01:05,118 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-02 19:01:05,119 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-12-02 19:01:05,119 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_linux_kernel_rcu_srcu_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2023-12-02 19:01:05,119 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:01:05,119 INFO L85 PathProgramCache]: Analyzing trace with hash -1336677848, now seen corresponding path program 1 times [2023-12-02 19:01:05,119 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:01:05,119 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1074788372] [2023-12-02 19:01:05,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:01:05,119 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:01:05,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:01:05,649 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-12-02 19:01:05,649 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:01:05,649 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1074788372] [2023-12-02 19:01:05,649 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1074788372] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:01:05,649 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 19:01:05,649 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-02 19:01:05,649 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1309645925] [2023-12-02 19:01:05,649 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:01:05,650 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 19:01:05,650 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 19:01:05,650 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 19:01:05,650 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-02 19:01:05,651 INFO L87 Difference]: Start difference. First operand 2773 states and 3910 transitions. Second operand has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2023-12-02 19:01:08,302 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:01:10,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:01:10,279 INFO L93 Difference]: Finished difference Result 2773 states and 3910 transitions. [2023-12-02 19:01:10,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 19:01:10,279 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (20), 2 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 103 [2023-12-02 19:01:10,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:01:10,286 INFO L225 Difference]: With dead ends: 2773 [2023-12-02 19:01:10,287 INFO L226 Difference]: Without dead ends: 2771 [2023-12-02 19:01:10,288 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-02 19:01:10,288 INFO L413 NwaCegarLoop]: 3363 mSDtfsCounter, 3700 mSDsluCounter, 3363 mSDsCounter, 0 mSdLazyCounter, 732 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3700 SdHoareTripleChecker+Valid, 6726 SdHoareTripleChecker+Invalid, 732 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 732 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2023-12-02 19:01:10,288 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3700 Valid, 6726 Invalid, 732 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 732 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2023-12-02 19:01:10,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2771 states. [2023-12-02 19:01:10,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2771 to 2771. [2023-12-02 19:01:10,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2771 states, 1652 states have (on average 1.2960048426150121) internal successors, (2141), 1723 states have internal predecessors, (2141), 883 states have call successors, (883), 221 states have call predecessors, (883), 218 states have return successors, (884), 870 states have call predecessors, (884), 881 states have call successors, (884) [2023-12-02 19:01:10,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2771 states to 2771 states and 3908 transitions. [2023-12-02 19:01:10,554 INFO L78 Accepts]: Start accepts. Automaton has 2771 states and 3908 transitions. Word has length 103 [2023-12-02 19:01:10,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:01:10,554 INFO L495 AbstractCegarLoop]: Abstraction has 2771 states and 3908 transitions. [2023-12-02 19:01:10,554 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2023-12-02 19:01:10,554 INFO L276 IsEmpty]: Start isEmpty. Operand 2771 states and 3908 transitions. [2023-12-02 19:01:10,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2023-12-02 19:01:10,556 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:01:10,556 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-02 19:01:10,556 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-12-02 19:01:10,556 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_linux_lib_idr_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2023-12-02 19:01:10,557 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:01:10,557 INFO L85 PathProgramCache]: Analyzing trace with hash 485364069, now seen corresponding path program 1 times [2023-12-02 19:01:10,557 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:01:10,557 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [230450124] [2023-12-02 19:01:10,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:01:10,557 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:01:10,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:01:11,106 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-12-02 19:01:11,106 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:01:11,106 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [230450124] [2023-12-02 19:01:11,106 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [230450124] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:01:11,106 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 19:01:11,106 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-02 19:01:11,107 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1343844168] [2023-12-02 19:01:11,107 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:01:11,107 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 19:01:11,107 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 19:01:11,108 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 19:01:11,108 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-02 19:01:11,108 INFO L87 Difference]: Start difference. First operand 2771 states and 3908 transitions. Second operand has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-12-02 19:01:14,786 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:01:15,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:01:15,848 INFO L93 Difference]: Finished difference Result 2771 states and 3908 transitions. [2023-12-02 19:01:15,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 19:01:15,848 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (21), 2 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 108 [2023-12-02 19:01:15,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:01:15,857 INFO L225 Difference]: With dead ends: 2771 [2023-12-02 19:01:15,857 INFO L226 Difference]: Without dead ends: 2769 [2023-12-02 19:01:15,858 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-02 19:01:15,858 INFO L413 NwaCegarLoop]: 3361 mSDtfsCounter, 3697 mSDsluCounter, 3361 mSDsCounter, 0 mSdLazyCounter, 732 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3697 SdHoareTripleChecker+Valid, 6722 SdHoareTripleChecker+Invalid, 732 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 732 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2023-12-02 19:01:15,859 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3697 Valid, 6722 Invalid, 732 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 732 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2023-12-02 19:01:15,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2769 states. [2023-12-02 19:01:16,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2769 to 2769. [2023-12-02 19:01:16,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2769 states, 1651 states have (on average 1.2955784373107209) internal successors, (2139), 1721 states have internal predecessors, (2139), 883 states have call successors, (883), 221 states have call predecessors, (883), 218 states have return successors, (884), 870 states have call predecessors, (884), 881 states have call successors, (884) [2023-12-02 19:01:16,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2769 states to 2769 states and 3906 transitions. [2023-12-02 19:01:16,124 INFO L78 Accepts]: Start accepts. Automaton has 2769 states and 3906 transitions. Word has length 108 [2023-12-02 19:01:16,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:01:16,125 INFO L495 AbstractCegarLoop]: Abstraction has 2769 states and 3906 transitions. [2023-12-02 19:01:16,125 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-12-02 19:01:16,125 INFO L276 IsEmpty]: Start isEmpty. Operand 2769 states and 3906 transitions. [2023-12-02 19:01:16,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2023-12-02 19:01:16,127 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:01:16,127 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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] [2023-12-02 19:01:16,127 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-12-02 19:01:16,127 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2023-12-02 19:01:16,127 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:01:16,127 INFO L85 PathProgramCache]: Analyzing trace with hash 1818018581, now seen corresponding path program 1 times [2023-12-02 19:01:16,127 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:01:16,128 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1263043619] [2023-12-02 19:01:16,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:01:16,128 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:01:16,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:01:16,689 INFO L134 CoverageAnalysis]: Checked inductivity of 290 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 290 trivial. 0 not checked. [2023-12-02 19:01:16,689 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:01:16,689 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1263043619] [2023-12-02 19:01:16,689 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1263043619] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:01:16,689 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 19:01:16,690 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 19:01:16,690 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [727084918] [2023-12-02 19:01:16,690 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:01:16,690 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 19:01:16,690 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 19:01:16,691 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 19:01:16,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 19:01:16,691 INFO L87 Difference]: Start difference. First operand 2769 states and 3906 transitions. Second operand has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (16), 1 states have call predecessors, (16), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-12-02 19:01:19,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:01:19,474 INFO L93 Difference]: Finished difference Result 5400 states and 7605 transitions. [2023-12-02 19:01:19,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 19:01:19,475 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (16), 1 states have call predecessors, (16), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 135 [2023-12-02 19:01:19,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:01:19,481 INFO L225 Difference]: With dead ends: 5400 [2023-12-02 19:01:19,481 INFO L226 Difference]: Without dead ends: 2765 [2023-12-02 19:01:19,489 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 19:01:19,489 INFO L413 NwaCegarLoop]: 3357 mSDtfsCounter, 3708 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 366 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3708 SdHoareTripleChecker+Valid, 3357 SdHoareTripleChecker+Invalid, 367 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 366 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2023-12-02 19:01:19,490 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3708 Valid, 3357 Invalid, 367 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 366 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2023-12-02 19:01:19,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2765 states. [2023-12-02 19:01:19,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2765 to 2765. [2023-12-02 19:01:19,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2765 states, 1648 states have (on average 1.2949029126213591) internal successors, (2134), 1717 states have internal predecessors, (2134), 883 states have call successors, (883), 221 states have call predecessors, (883), 218 states have return successors, (884), 870 states have call predecessors, (884), 881 states have call successors, (884) [2023-12-02 19:01:19,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2765 states to 2765 states and 3901 transitions. [2023-12-02 19:01:19,763 INFO L78 Accepts]: Start accepts. Automaton has 2765 states and 3901 transitions. Word has length 135 [2023-12-02 19:01:19,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:01:19,764 INFO L495 AbstractCegarLoop]: Abstraction has 2765 states and 3901 transitions. [2023-12-02 19:01:19,764 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (16), 1 states have call predecessors, (16), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-12-02 19:01:19,764 INFO L276 IsEmpty]: Start isEmpty. Operand 2765 states and 3901 transitions. [2023-12-02 19:01:19,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2023-12-02 19:01:19,766 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:01:19,766 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-02 19:01:19,766 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-12-02 19:01:19,767 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_linux_mmc_sdio_func_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2023-12-02 19:01:19,767 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:01:19,767 INFO L85 PathProgramCache]: Analyzing trace with hash 1600308729, now seen corresponding path program 1 times [2023-12-02 19:01:19,767 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:01:19,767 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [491932618] [2023-12-02 19:01:19,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:01:19,768 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:01:20,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:01:20,448 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-12-02 19:01:20,448 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:01:20,449 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [491932618] [2023-12-02 19:01:20,449 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [491932618] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:01:20,449 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 19:01:20,449 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-02 19:01:20,449 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [796611719] [2023-12-02 19:01:20,449 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:01:20,450 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 19:01:20,450 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 19:01:20,450 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 19:01:20,450 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-02 19:01:20,451 INFO L87 Difference]: Start difference. First operand 2765 states and 3901 transitions. Second operand has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2023-12-02 19:01:24,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:01:24,816 INFO L93 Difference]: Finished difference Result 2765 states and 3901 transitions. [2023-12-02 19:01:24,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 19:01:24,817 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (22), 2 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 113 [2023-12-02 19:01:24,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:01:24,822 INFO L225 Difference]: With dead ends: 2765 [2023-12-02 19:01:24,822 INFO L226 Difference]: Without dead ends: 2763 [2023-12-02 19:01:24,823 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-02 19:01:24,823 INFO L413 NwaCegarLoop]: 3354 mSDtfsCounter, 3689 mSDsluCounter, 3354 mSDsCounter, 0 mSdLazyCounter, 732 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3689 SdHoareTripleChecker+Valid, 6708 SdHoareTripleChecker+Invalid, 732 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 732 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2023-12-02 19:01:24,823 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3689 Valid, 6708 Invalid, 732 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 732 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2023-12-02 19:01:24,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2763 states. [2023-12-02 19:01:25,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2763 to 2763. [2023-12-02 19:01:25,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2763 states, 1647 states have (on average 1.294474802671524) internal successors, (2132), 1715 states have internal predecessors, (2132), 883 states have call successors, (883), 221 states have call predecessors, (883), 218 states have return successors, (884), 870 states have call predecessors, (884), 881 states have call successors, (884) [2023-12-02 19:01:25,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2763 states to 2763 states and 3899 transitions. [2023-12-02 19:01:25,102 INFO L78 Accepts]: Start accepts. Automaton has 2763 states and 3899 transitions. Word has length 113 [2023-12-02 19:01:25,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:01:25,102 INFO L495 AbstractCegarLoop]: Abstraction has 2763 states and 3899 transitions. [2023-12-02 19:01:25,103 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2023-12-02 19:01:25,103 INFO L276 IsEmpty]: Start isEmpty. Operand 2763 states and 3899 transitions. [2023-12-02 19:01:25,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2023-12-02 19:01:25,104 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:01:25,104 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 19:01:25,105 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-12-02 19:01:25,105 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2023-12-02 19:01:25,105 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:01:25,105 INFO L85 PathProgramCache]: Analyzing trace with hash 893034075, now seen corresponding path program 1 times [2023-12-02 19:01:25,106 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:01:25,106 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1795693609] [2023-12-02 19:01:25,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:01:25,106 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:01:25,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:01:25,661 INFO L134 CoverageAnalysis]: Checked inductivity of 292 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 291 trivial. 0 not checked. [2023-12-02 19:01:25,661 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:01:25,661 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1795693609] [2023-12-02 19:01:25,661 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1795693609] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 19:01:25,661 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1934140354] [2023-12-02 19:01:25,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:01:25,662 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 19:01:25,662 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af5414e3-0617-4494-a44b-8a9b2c022128/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 19:01:25,663 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af5414e3-0617-4494-a44b-8a9b2c022128/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 19:01:25,665 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af5414e3-0617-4494-a44b-8a9b2c022128/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-02 19:01:27,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:01:27,053 INFO L262 TraceCheckSpWp]: Trace formula consists of 4331 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-02 19:01:27,067 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 19:01:27,127 INFO L134 CoverageAnalysis]: Checked inductivity of 292 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 290 trivial. 0 not checked. [2023-12-02 19:01:27,127 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 19:01:27,127 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1934140354] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:01:27,127 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-02 19:01:27,128 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2023-12-02 19:01:27,128 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1861351117] [2023-12-02 19:01:27,128 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:01:27,128 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 19:01:27,128 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 19:01:27,129 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 19:01:27,129 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-12-02 19:01:27,129 INFO L87 Difference]: Start difference. First operand 2763 states and 3899 transitions. Second operand has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-02 19:01:30,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:01:30,137 INFO L93 Difference]: Finished difference Result 5433 states and 7636 transitions. [2023-12-02 19:01:30,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 19:01:30,137 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 140 [2023-12-02 19:01:30,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:01:30,145 INFO L225 Difference]: With dead ends: 5433 [2023-12-02 19:01:30,145 INFO L226 Difference]: Without dead ends: 2807 [2023-12-02 19:01:30,153 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 140 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-12-02 19:01:30,154 INFO L413 NwaCegarLoop]: 3378 mSDtfsCounter, 3655 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 390 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3655 SdHoareTripleChecker+Valid, 3449 SdHoareTripleChecker+Invalid, 391 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 390 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2023-12-02 19:01:30,154 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3655 Valid, 3449 Invalid, 391 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 390 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2023-12-02 19:01:30,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2807 states. [2023-12-02 19:01:30,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2807 to 2805. [2023-12-02 19:01:30,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2805 states, 1668 states have (on average 1.290767386091127) internal successors, (2153), 1736 states have internal predecessors, (2153), 893 states have call successors, (893), 233 states have call predecessors, (893), 230 states have return successors, (894), 879 states have call predecessors, (894), 891 states have call successors, (894) [2023-12-02 19:01:30,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2805 states to 2805 states and 3940 transitions. [2023-12-02 19:01:30,493 INFO L78 Accepts]: Start accepts. Automaton has 2805 states and 3940 transitions. Word has length 140 [2023-12-02 19:01:30,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:01:30,493 INFO L495 AbstractCegarLoop]: Abstraction has 2805 states and 3940 transitions. [2023-12-02 19:01:30,493 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-02 19:01:30,493 INFO L276 IsEmpty]: Start isEmpty. Operand 2805 states and 3940 transitions. [2023-12-02 19:01:30,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2023-12-02 19:01:30,496 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:01:30,496 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-02 19:01:30,510 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af5414e3-0617-4494-a44b-8a9b2c022128/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-02 19:01:30,696 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af5414e3-0617-4494-a44b-8a9b2c022128/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable19 [2023-12-02 19:01:30,697 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ldv_linux_net_rtnetlink_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2023-12-02 19:01:30,697 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:01:30,697 INFO L85 PathProgramCache]: Analyzing trace with hash 471856975, now seen corresponding path program 1 times [2023-12-02 19:01:30,697 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:01:30,697 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [687068554] [2023-12-02 19:01:30,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:01:30,697 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:01:30,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:01:31,224 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-12-02 19:01:31,224 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:01:31,224 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [687068554] [2023-12-02 19:01:31,224 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [687068554] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:01:31,224 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 19:01:31,225 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-02 19:01:31,225 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1863006223] [2023-12-02 19:01:31,225 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:01:31,225 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 19:01:31,225 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 19:01:31,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 19:01:31,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-02 19:01:31,226 INFO L87 Difference]: Start difference. First operand 2805 states and 3940 transitions. Second operand has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2023-12-02 19:01:35,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:01:35,128 INFO L93 Difference]: Finished difference Result 2805 states and 3940 transitions. [2023-12-02 19:01:35,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 19:01:35,129 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (23), 2 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 118 [2023-12-02 19:01:35,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:01:35,136 INFO L225 Difference]: With dead ends: 2805 [2023-12-02 19:01:35,136 INFO L226 Difference]: Without dead ends: 2803 [2023-12-02 19:01:35,137 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-02 19:01:35,138 INFO L413 NwaCegarLoop]: 3347 mSDtfsCounter, 3681 mSDsluCounter, 3347 mSDsCounter, 0 mSdLazyCounter, 732 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3681 SdHoareTripleChecker+Valid, 6694 SdHoareTripleChecker+Invalid, 732 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 732 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2023-12-02 19:01:35,138 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3681 Valid, 6694 Invalid, 732 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 732 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2023-12-02 19:01:35,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2803 states. [2023-12-02 19:01:35,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2803 to 2803. [2023-12-02 19:01:35,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2803 states, 1667 states have (on average 1.2903419316136773) internal successors, (2151), 1734 states have internal predecessors, (2151), 893 states have call successors, (893), 233 states have call predecessors, (893), 230 states have return successors, (894), 879 states have call predecessors, (894), 891 states have call successors, (894) [2023-12-02 19:01:35,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2803 states to 2803 states and 3938 transitions. [2023-12-02 19:01:35,493 INFO L78 Accepts]: Start accepts. Automaton has 2803 states and 3938 transitions. Word has length 118 [2023-12-02 19:01:35,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:01:35,493 INFO L495 AbstractCegarLoop]: Abstraction has 2803 states and 3938 transitions. [2023-12-02 19:01:35,493 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2023-12-02 19:01:35,493 INFO L276 IsEmpty]: Start isEmpty. Operand 2803 states and 3938 transitions. [2023-12-02 19:01:35,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2023-12-02 19:01:35,495 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:01:35,496 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-02 19:01:35,496 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-12-02 19:01:35,496 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ldv_linux_net_sock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2023-12-02 19:01:35,496 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:01:35,496 INFO L85 PathProgramCache]: Analyzing trace with hash -462644639, now seen corresponding path program 1 times [2023-12-02 19:01:35,496 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:01:35,497 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1665212001] [2023-12-02 19:01:35,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:01:35,497 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:01:35,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:01:36,029 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-12-02 19:01:36,029 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:01:36,029 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1665212001] [2023-12-02 19:01:36,029 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1665212001] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:01:36,029 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 19:01:36,029 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-02 19:01:36,029 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [781840424] [2023-12-02 19:01:36,029 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:01:36,029 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 19:01:36,030 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 19:01:36,030 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 19:01:36,030 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-02 19:01:36,030 INFO L87 Difference]: Start difference. First operand 2803 states and 3938 transitions. Second operand has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2023-12-02 19:01:40,887 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:01:42,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:01:42,093 INFO L93 Difference]: Finished difference Result 2803 states and 3938 transitions. [2023-12-02 19:01:42,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 19:01:42,093 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (24), 2 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 123 [2023-12-02 19:01:42,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:01:42,099 INFO L225 Difference]: With dead ends: 2803 [2023-12-02 19:01:42,099 INFO L226 Difference]: Without dead ends: 2801 [2023-12-02 19:01:42,100 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-02 19:01:42,101 INFO L413 NwaCegarLoop]: 3345 mSDtfsCounter, 3678 mSDsluCounter, 3345 mSDsCounter, 0 mSdLazyCounter, 732 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3678 SdHoareTripleChecker+Valid, 6690 SdHoareTripleChecker+Invalid, 732 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 732 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2023-12-02 19:01:42,101 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3678 Valid, 6690 Invalid, 732 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 732 Invalid, 0 Unknown, 0 Unchecked, 5.6s Time] [2023-12-02 19:01:42,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2801 states. [2023-12-02 19:01:42,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2801 to 2801. [2023-12-02 19:01:42,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2801 states, 1666 states have (on average 1.2899159663865547) internal successors, (2149), 1732 states have internal predecessors, (2149), 893 states have call successors, (893), 233 states have call predecessors, (893), 230 states have return successors, (894), 879 states have call predecessors, (894), 891 states have call successors, (894) [2023-12-02 19:01:42,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2801 states to 2801 states and 3936 transitions. [2023-12-02 19:01:42,468 INFO L78 Accepts]: Start accepts. Automaton has 2801 states and 3936 transitions. Word has length 123 [2023-12-02 19:01:42,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:01:42,468 INFO L495 AbstractCegarLoop]: Abstraction has 2801 states and 3936 transitions. [2023-12-02 19:01:42,468 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2023-12-02 19:01:42,468 INFO L276 IsEmpty]: Start isEmpty. Operand 2801 states and 3936 transitions. [2023-12-02 19:01:42,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2023-12-02 19:01:42,470 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:01:42,471 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-02 19:01:42,471 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-12-02 19:01:42,471 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2023-12-02 19:01:42,471 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:01:42,471 INFO L85 PathProgramCache]: Analyzing trace with hash 522681786, now seen corresponding path program 1 times [2023-12-02 19:01:42,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:01:42,472 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1633582005] [2023-12-02 19:01:42,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:01:42,472 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:01:42,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:01:43,009 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-12-02 19:01:43,009 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:01:43,009 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1633582005] [2023-12-02 19:01:43,009 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1633582005] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:01:43,010 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 19:01:43,010 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-02 19:01:43,010 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1748586122] [2023-12-02 19:01:43,010 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:01:43,010 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 19:01:43,010 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 19:01:43,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 19:01:43,011 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-02 19:01:43,011 INFO L87 Difference]: Start difference. First operand 2801 states and 3936 transitions. Second operand has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2023-12-02 19:01:47,232 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:01:49,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:01:49,419 INFO L93 Difference]: Finished difference Result 5103 states and 7159 transitions. [2023-12-02 19:01:49,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-02 19:01:49,420 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (25), 2 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 128 [2023-12-02 19:01:49,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:01:49,432 INFO L225 Difference]: With dead ends: 5103 [2023-12-02 19:01:49,433 INFO L226 Difference]: Without dead ends: 5101 [2023-12-02 19:01:49,434 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-02 19:01:49,434 INFO L413 NwaCegarLoop]: 3367 mSDtfsCounter, 3303 mSDsluCounter, 6426 mSDsCounter, 0 mSdLazyCounter, 1069 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3303 SdHoareTripleChecker+Valid, 9793 SdHoareTripleChecker+Invalid, 1070 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1069 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2023-12-02 19:01:49,434 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3303 Valid, 9793 Invalid, 1070 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1069 Invalid, 0 Unknown, 0 Unchecked, 5.6s Time] [2023-12-02 19:01:49,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5101 states. [2023-12-02 19:01:50,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5101 to 5072. [2023-12-02 19:01:50,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5072 states, 3024 states have (on average 1.2900132275132274) internal successors, (3901), 3129 states have internal predecessors, (3901), 1601 states have call successors, (1601), 440 states have call predecessors, (1601), 435 states have return successors, (1633), 1578 states have call predecessors, (1633), 1599 states have call successors, (1633) [2023-12-02 19:01:50,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5072 states to 5072 states and 7135 transitions. [2023-12-02 19:01:50,053 INFO L78 Accepts]: Start accepts. Automaton has 5072 states and 7135 transitions. Word has length 128 [2023-12-02 19:01:50,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:01:50,053 INFO L495 AbstractCegarLoop]: Abstraction has 5072 states and 7135 transitions. [2023-12-02 19:01:50,053 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2023-12-02 19:01:50,053 INFO L276 IsEmpty]: Start isEmpty. Operand 5072 states and 7135 transitions. [2023-12-02 19:01:50,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2023-12-02 19:01:50,055 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:01:50,055 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-02 19:01:50,055 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-12-02 19:01:50,055 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2023-12-02 19:01:50,056 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:01:50,056 INFO L85 PathProgramCache]: Analyzing trace with hash -600487236, now seen corresponding path program 1 times [2023-12-02 19:01:50,056 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:01:50,056 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2112011669] [2023-12-02 19:01:50,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:01:50,056 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:01:50,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:01:50,602 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-12-02 19:01:50,602 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:01:50,602 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2112011669] [2023-12-02 19:01:50,603 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2112011669] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:01:50,603 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 19:01:50,603 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-02 19:01:50,603 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1431783528] [2023-12-02 19:01:50,603 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:01:50,603 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 19:01:50,604 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 19:01:50,604 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 19:01:50,604 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-02 19:01:50,604 INFO L87 Difference]: Start difference. First operand 5072 states and 7135 transitions. Second operand has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2023-12-02 19:01:55,473 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:01:56,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:01:56,188 INFO L93 Difference]: Finished difference Result 5072 states and 7135 transitions. [2023-12-02 19:01:56,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 19:01:56,189 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (26), 2 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 133 [2023-12-02 19:01:56,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:01:56,201 INFO L225 Difference]: With dead ends: 5072 [2023-12-02 19:01:56,201 INFO L226 Difference]: Without dead ends: 5070 [2023-12-02 19:01:56,203 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-02 19:01:56,204 INFO L413 NwaCegarLoop]: 3343 mSDtfsCounter, 3674 mSDsluCounter, 3343 mSDsCounter, 0 mSdLazyCounter, 732 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3674 SdHoareTripleChecker+Valid, 6686 SdHoareTripleChecker+Invalid, 732 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 732 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2023-12-02 19:01:56,204 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3674 Valid, 6686 Invalid, 732 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 732 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time] [2023-12-02 19:01:56,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5070 states. [2023-12-02 19:01:56,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5070 to 5070. [2023-12-02 19:01:56,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5070 states, 3023 states have (on average 1.2897783658617268) internal successors, (3899), 3127 states have internal predecessors, (3899), 1601 states have call successors, (1601), 440 states have call predecessors, (1601), 435 states have return successors, (1633), 1578 states have call predecessors, (1633), 1599 states have call successors, (1633) [2023-12-02 19:01:56,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5070 states to 5070 states and 7133 transitions. [2023-12-02 19:01:56,942 INFO L78 Accepts]: Start accepts. Automaton has 5070 states and 7133 transitions. Word has length 133 [2023-12-02 19:01:56,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:01:56,942 INFO L495 AbstractCegarLoop]: Abstraction has 5070 states and 7133 transitions. [2023-12-02 19:01:56,942 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2023-12-02 19:01:56,942 INFO L276 IsEmpty]: Start isEmpty. Operand 5070 states and 7133 transitions. [2023-12-02 19:01:56,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2023-12-02 19:01:56,944 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:01:56,944 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-02 19:01:56,944 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2023-12-02 19:01:56,944 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ldv_linux_usb_urb_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2023-12-02 19:01:56,944 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:01:56,945 INFO L85 PathProgramCache]: Analyzing trace with hash 1461717809, now seen corresponding path program 1 times [2023-12-02 19:01:56,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:01:56,945 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [741968434] [2023-12-02 19:01:56,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:01:56,945 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:01:57,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:01:57,479 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-12-02 19:01:57,479 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:01:57,480 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [741968434] [2023-12-02 19:01:57,480 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [741968434] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:01:57,480 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 19:01:57,480 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-02 19:01:57,480 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2112758904] [2023-12-02 19:01:57,480 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:01:57,480 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 19:01:57,480 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 19:01:57,481 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 19:01:57,481 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-02 19:01:57,481 INFO L87 Difference]: Start difference. First operand 5070 states and 7133 transitions. Second operand has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2023-12-02 19:02:01,209 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.62s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:02:04,392 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.94s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:02:05,505 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:02:08,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:02:08,591 INFO L93 Difference]: Finished difference Result 7549 states and 10657 transitions. [2023-12-02 19:02:08,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 19:02:08,592 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (27), 2 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 138 [2023-12-02 19:02:08,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:02:08,642 INFO L225 Difference]: With dead ends: 7549 [2023-12-02 19:02:08,642 INFO L226 Difference]: Without dead ends: 7417 [2023-12-02 19:02:08,646 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-02 19:02:08,646 INFO L413 NwaCegarLoop]: 3521 mSDtfsCounter, 3566 mSDsluCounter, 6584 mSDsCounter, 0 mSdLazyCounter, 1126 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3566 SdHoareTripleChecker+Valid, 10105 SdHoareTripleChecker+Invalid, 1126 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1126 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.9s IncrementalHoareTripleChecker+Time [2023-12-02 19:02:08,646 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3566 Valid, 10105 Invalid, 1126 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1126 Invalid, 0 Unknown, 0 Unchecked, 9.9s Time] [2023-12-02 19:02:08,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7417 states. [2023-12-02 19:02:09,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7417 to 7394. [2023-12-02 19:02:09,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7394 states, 4419 states have (on average 1.2932790224032586) internal successors, (5715), 4568 states have internal predecessors, (5715), 2337 states have call successors, (2337), 634 states have call predecessors, (2337), 627 states have return successors, (2432), 2304 states have call predecessors, (2432), 2333 states have call successors, (2432) [2023-12-02 19:02:09,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7394 states to 7394 states and 10484 transitions. [2023-12-02 19:02:09,627 INFO L78 Accepts]: Start accepts. Automaton has 7394 states and 10484 transitions. Word has length 138 [2023-12-02 19:02:09,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:02:09,627 INFO L495 AbstractCegarLoop]: Abstraction has 7394 states and 10484 transitions. [2023-12-02 19:02:09,627 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2023-12-02 19:02:09,627 INFO L276 IsEmpty]: Start isEmpty. Operand 7394 states and 10484 transitions. [2023-12-02 19:02:09,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2023-12-02 19:02:09,629 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:02:09,629 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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] [2023-12-02 19:02:09,629 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2023-12-02 19:02:09,629 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2023-12-02 19:02:09,629 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:02:09,629 INFO L85 PathProgramCache]: Analyzing trace with hash -1049217853, now seen corresponding path program 1 times [2023-12-02 19:02:09,629 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:02:09,630 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2127890717] [2023-12-02 19:02:09,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:02:09,630 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:02:09,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:02:10,616 INFO L134 CoverageAnalysis]: Checked inductivity of 482 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 482 trivial. 0 not checked. [2023-12-02 19:02:10,617 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:02:10,617 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2127890717] [2023-12-02 19:02:10,617 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2127890717] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:02:10,617 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 19:02:10,617 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-02 19:02:10,618 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [231134028] [2023-12-02 19:02:10,618 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:02:10,618 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-02 19:02:10,618 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 19:02:10,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-02 19:02:10,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-02 19:02:10,619 INFO L87 Difference]: Start difference. First operand 7394 states and 10484 transitions. Second operand has 5 states, 5 states have (on average 10.0) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (26), 1 states have call predecessors, (26), 2 states have return successors, (26), 3 states have call predecessors, (26), 2 states have call successors, (26) [2023-12-02 19:02:16,438 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:02:20,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:02:20,250 INFO L93 Difference]: Finished difference Result 13984 states and 19753 transitions. [2023-12-02 19:02:20,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-02 19:02:20,250 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (26), 1 states have call predecessors, (26), 2 states have return successors, (26), 3 states have call predecessors, (26), 2 states have call successors, (26) Word has length 186 [2023-12-02 19:02:20,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:02:20,269 INFO L225 Difference]: With dead ends: 13984 [2023-12-02 19:02:20,269 INFO L226 Difference]: Without dead ends: 7409 [2023-12-02 19:02:20,287 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-02 19:02:20,288 INFO L413 NwaCegarLoop]: 3344 mSDtfsCounter, 1 mSDsluCounter, 10029 mSDsCounter, 0 mSdLazyCounter, 1466 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 13373 SdHoareTripleChecker+Invalid, 1466 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1466 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.4s IncrementalHoareTripleChecker+Time [2023-12-02 19:02:20,288 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 13373 Invalid, 1466 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1466 Invalid, 0 Unknown, 0 Unchecked, 8.4s Time] [2023-12-02 19:02:20,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7409 states. [2023-12-02 19:02:21,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7409 to 7406. [2023-12-02 19:02:21,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7406 states, 4428 states have (on average 1.2926829268292683) internal successors, (5724), 4577 states have internal predecessors, (5724), 2337 states have call successors, (2337), 634 states have call predecessors, (2337), 630 states have return successors, (2450), 2307 states have call predecessors, (2450), 2333 states have call successors, (2450) [2023-12-02 19:02:21,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7406 states to 7406 states and 10511 transitions. [2023-12-02 19:02:21,182 INFO L78 Accepts]: Start accepts. Automaton has 7406 states and 10511 transitions. Word has length 186 [2023-12-02 19:02:21,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:02:21,183 INFO L495 AbstractCegarLoop]: Abstraction has 7406 states and 10511 transitions. [2023-12-02 19:02:21,183 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (26), 1 states have call predecessors, (26), 2 states have return successors, (26), 3 states have call predecessors, (26), 2 states have call successors, (26) [2023-12-02 19:02:21,183 INFO L276 IsEmpty]: Start isEmpty. Operand 7406 states and 10511 transitions. [2023-12-02 19:02:21,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2023-12-02 19:02:21,185 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:02:21,185 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 19:02:21,185 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2023-12-02 19:02:21,185 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2023-12-02 19:02:21,185 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:02:21,186 INFO L85 PathProgramCache]: Analyzing trace with hash 1541033121, now seen corresponding path program 1 times [2023-12-02 19:02:21,186 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:02:21,186 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [568908912] [2023-12-02 19:02:21,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:02:21,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:02:21,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:02:22,255 INFO L134 CoverageAnalysis]: Checked inductivity of 379 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 379 trivial. 0 not checked. [2023-12-02 19:02:22,256 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:02:22,256 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [568908912] [2023-12-02 19:02:22,256 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [568908912] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:02:22,256 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 19:02:22,256 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-02 19:02:22,256 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1620774178] [2023-12-02 19:02:22,256 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:02:22,257 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-02 19:02:22,257 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 19:02:22,257 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-02 19:02:22,257 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-02 19:02:22,258 INFO L87 Difference]: Start difference. First operand 7406 states and 10511 transitions. Second operand has 5 states, 5 states have (on average 11.4) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (29), 3 states have call predecessors, (29), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2023-12-02 19:02:24,882 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:02:28,502 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:02:31,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:02:31,811 INFO L93 Difference]: Finished difference Result 8246 states and 11546 transitions. [2023-12-02 19:02:31,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-02 19:02:31,812 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (29), 3 states have call predecessors, (29), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 182 [2023-12-02 19:02:31,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:02:31,831 INFO L225 Difference]: With dead ends: 8246 [2023-12-02 19:02:31,831 INFO L226 Difference]: Without dead ends: 8244 [2023-12-02 19:02:31,833 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-02 19:02:31,834 INFO L413 NwaCegarLoop]: 3587 mSDtfsCounter, 3293 mSDsluCounter, 7797 mSDsCounter, 0 mSdLazyCounter, 1245 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3295 SdHoareTripleChecker+Valid, 11384 SdHoareTripleChecker+Invalid, 1248 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1245 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.4s IncrementalHoareTripleChecker+Time [2023-12-02 19:02:31,834 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3295 Valid, 11384 Invalid, 1248 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1245 Invalid, 0 Unknown, 0 Unchecked, 8.4s Time] [2023-12-02 19:02:31,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8244 states. [2023-12-02 19:02:33,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8244 to 8207. [2023-12-02 19:02:33,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8207 states, 4899 states have (on average 1.284751990202082) internal successors, (6294), 5057 states have internal predecessors, (6294), 2535 states have call successors, (2535), 760 states have call predecessors, (2535), 762 states have return successors, (2666), 2508 states have call predecessors, (2666), 2531 states have call successors, (2666) [2023-12-02 19:02:33,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8207 states to 8207 states and 11495 transitions. [2023-12-02 19:02:33,093 INFO L78 Accepts]: Start accepts. Automaton has 8207 states and 11495 transitions. Word has length 182 [2023-12-02 19:02:33,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:02:33,093 INFO L495 AbstractCegarLoop]: Abstraction has 8207 states and 11495 transitions. [2023-12-02 19:02:33,093 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (29), 3 states have call predecessors, (29), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2023-12-02 19:02:33,093 INFO L276 IsEmpty]: Start isEmpty. Operand 8207 states and 11495 transitions. [2023-12-02 19:02:33,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2023-12-02 19:02:33,095 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:02:33,095 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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] [2023-12-02 19:02:33,095 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2023-12-02 19:02:33,095 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2023-12-02 19:02:33,096 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:02:33,096 INFO L85 PathProgramCache]: Analyzing trace with hash 232022823, now seen corresponding path program 1 times [2023-12-02 19:02:33,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:02:33,096 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1134486381] [2023-12-02 19:02:33,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:02:33,096 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:02:33,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:02:33,862 INFO L134 CoverageAnalysis]: Checked inductivity of 587 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 587 trivial. 0 not checked. [2023-12-02 19:02:33,862 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:02:33,862 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1134486381] [2023-12-02 19:02:33,862 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1134486381] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:02:33,862 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 19:02:33,862 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-02 19:02:33,862 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [382779787] [2023-12-02 19:02:33,862 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:02:33,863 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-02 19:02:33,863 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 19:02:33,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-02 19:02:33,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-02 19:02:33,863 INFO L87 Difference]: Start difference. First operand 8207 states and 11495 transitions. Second operand has 6 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 2 states have call successors, (29), 1 states have call predecessors, (29), 2 states have return successors, (29), 3 states have call predecessors, (29), 2 states have call successors, (29) [2023-12-02 19:02:44,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:02:44,388 INFO L93 Difference]: Finished difference Result 15645 states and 21802 transitions. [2023-12-02 19:02:44,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-02 19:02:44,389 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 2 states have call successors, (29), 1 states have call predecessors, (29), 2 states have return successors, (29), 3 states have call predecessors, (29), 2 states have call successors, (29) Word has length 199 [2023-12-02 19:02:44,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:02:44,411 INFO L225 Difference]: With dead ends: 15645 [2023-12-02 19:02:44,411 INFO L226 Difference]: Without dead ends: 8257 [2023-12-02 19:02:44,429 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-12-02 19:02:44,430 INFO L413 NwaCegarLoop]: 3347 mSDtfsCounter, 3632 mSDsluCounter, 8544 mSDsCounter, 0 mSdLazyCounter, 3181 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3634 SdHoareTripleChecker+Valid, 11891 SdHoareTripleChecker+Invalid, 3182 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3181 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.0s IncrementalHoareTripleChecker+Time [2023-12-02 19:02:44,430 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3634 Valid, 11891 Invalid, 3182 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 3181 Invalid, 0 Unknown, 0 Unchecked, 9.0s Time] [2023-12-02 19:02:44,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8257 states. [2023-12-02 19:02:45,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8257 to 8199. [2023-12-02 19:02:45,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8199 states, 4892 states have (on average 1.2839329517579723) internal successors, (6281), 5049 states have internal predecessors, (6281), 2535 states have call successors, (2535), 760 states have call predecessors, (2535), 762 states have return successors, (2666), 2508 states have call predecessors, (2666), 2531 states have call successors, (2666) [2023-12-02 19:02:45,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8199 states to 8199 states and 11482 transitions. [2023-12-02 19:02:45,501 INFO L78 Accepts]: Start accepts. Automaton has 8199 states and 11482 transitions. Word has length 199 [2023-12-02 19:02:45,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:02:45,502 INFO L495 AbstractCegarLoop]: Abstraction has 8199 states and 11482 transitions. [2023-12-02 19:02:45,502 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 2 states have call successors, (29), 1 states have call predecessors, (29), 2 states have return successors, (29), 3 states have call predecessors, (29), 2 states have call successors, (29) [2023-12-02 19:02:45,502 INFO L276 IsEmpty]: Start isEmpty. Operand 8199 states and 11482 transitions. [2023-12-02 19:02:45,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2023-12-02 19:02:45,504 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:02:45,505 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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] [2023-12-02 19:02:45,505 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2023-12-02 19:02:45,505 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2023-12-02 19:02:45,505 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:02:45,505 INFO L85 PathProgramCache]: Analyzing trace with hash -1396851752, now seen corresponding path program 1 times [2023-12-02 19:02:45,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:02:45,506 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [535863609] [2023-12-02 19:02:45,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:02:45,506 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:02:45,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:02:46,308 INFO L134 CoverageAnalysis]: Checked inductivity of 587 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 587 trivial. 0 not checked. [2023-12-02 19:02:46,309 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:02:46,309 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [535863609] [2023-12-02 19:02:46,309 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [535863609] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:02:46,309 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 19:02:46,309 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-02 19:02:46,309 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [160425144] [2023-12-02 19:02:46,309 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:02:46,310 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 19:02:46,310 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 19:02:46,310 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 19:02:46,310 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-02 19:02:46,311 INFO L87 Difference]: Start difference. First operand 8199 states and 11482 transitions. Second operand has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (29), 1 states have call predecessors, (29), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2023-12-02 19:02:49,088 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:02:52,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:02:52,385 INFO L93 Difference]: Finished difference Result 8199 states and 11482 transitions. [2023-12-02 19:02:52,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 19:02:52,386 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (29), 1 states have call predecessors, (29), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) Word has length 200 [2023-12-02 19:02:52,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:02:52,403 INFO L225 Difference]: With dead ends: 8199 [2023-12-02 19:02:52,403 INFO L226 Difference]: Without dead ends: 8197 [2023-12-02 19:02:52,406 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-02 19:02:52,406 INFO L413 NwaCegarLoop]: 3335 mSDtfsCounter, 3653 mSDsluCounter, 3335 mSDsCounter, 0 mSdLazyCounter, 734 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3653 SdHoareTripleChecker+Valid, 6670 SdHoareTripleChecker+Invalid, 734 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 734 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2023-12-02 19:02:52,407 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3653 Valid, 6670 Invalid, 734 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 734 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time] [2023-12-02 19:02:52,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8197 states. [2023-12-02 19:02:53,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8197 to 8197. [2023-12-02 19:02:53,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8197 states, 4891 states have (on average 1.283377632386015) internal successors, (6277), 5047 states have internal predecessors, (6277), 2535 states have call successors, (2535), 760 states have call predecessors, (2535), 762 states have return successors, (2666), 2508 states have call predecessors, (2666), 2531 states have call successors, (2666) [2023-12-02 19:02:53,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8197 states to 8197 states and 11478 transitions. [2023-12-02 19:02:53,501 INFO L78 Accepts]: Start accepts. Automaton has 8197 states and 11478 transitions. Word has length 200 [2023-12-02 19:02:53,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:02:53,502 INFO L495 AbstractCegarLoop]: Abstraction has 8197 states and 11478 transitions. [2023-12-02 19:02:53,502 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (29), 1 states have call predecessors, (29), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2023-12-02 19:02:53,502 INFO L276 IsEmpty]: Start isEmpty. Operand 8197 states and 11478 transitions. [2023-12-02 19:02:53,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2023-12-02 19:02:53,504 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:02:53,504 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 8, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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] [2023-12-02 19:02:53,504 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2023-12-02 19:02:53,504 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2023-12-02 19:02:53,505 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:02:53,505 INFO L85 PathProgramCache]: Analyzing trace with hash 809775844, now seen corresponding path program 1 times [2023-12-02 19:02:53,505 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:02:53,505 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [773654560] [2023-12-02 19:02:53,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:02:53,505 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:02:53,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:02:54,214 INFO L134 CoverageAnalysis]: Checked inductivity of 605 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 605 trivial. 0 not checked. [2023-12-02 19:02:54,214 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:02:54,214 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [773654560] [2023-12-02 19:02:54,214 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [773654560] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:02:54,214 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 19:02:54,214 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-02 19:02:54,214 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [748815677] [2023-12-02 19:02:54,215 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:02:54,215 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-02 19:02:54,215 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 19:02:54,216 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-02 19:02:54,216 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-02 19:02:54,216 INFO L87 Difference]: Start difference. First operand 8197 states and 11478 transitions. Second operand has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (31), 3 states have call predecessors, (31), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2023-12-02 19:02:57,408 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:03:02,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:03:02,484 INFO L93 Difference]: Finished difference Result 8230 states and 11502 transitions. [2023-12-02 19:03:02,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-02 19:03:02,484 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (31), 3 states have call predecessors, (31), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) Word has length 209 [2023-12-02 19:03:02,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:03:02,502 INFO L225 Difference]: With dead ends: 8230 [2023-12-02 19:03:02,502 INFO L226 Difference]: Without dead ends: 8228 [2023-12-02 19:03:02,505 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-02 19:03:02,505 INFO L413 NwaCegarLoop]: 3337 mSDtfsCounter, 3623 mSDsluCounter, 6688 mSDsCounter, 0 mSdLazyCounter, 1118 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3625 SdHoareTripleChecker+Valid, 10025 SdHoareTripleChecker+Invalid, 1120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.1s IncrementalHoareTripleChecker+Time [2023-12-02 19:03:02,505 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3625 Valid, 10025 Invalid, 1120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1118 Invalid, 0 Unknown, 0 Unchecked, 7.1s Time] [2023-12-02 19:03:02,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8228 states. [2023-12-02 19:03:03,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8228 to 8226. [2023-12-02 19:03:03,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8226 states, 4910 states have (on average 1.2822810590631364) internal successors, (6296), 5066 states have internal predecessors, (6296), 2535 states have call successors, (2535), 770 states have call predecessors, (2535), 772 states have return successors, (2666), 2508 states have call predecessors, (2666), 2531 states have call successors, (2666) [2023-12-02 19:03:03,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8226 states to 8226 states and 11497 transitions. [2023-12-02 19:03:03,629 INFO L78 Accepts]: Start accepts. Automaton has 8226 states and 11497 transitions. Word has length 209 [2023-12-02 19:03:03,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:03:03,629 INFO L495 AbstractCegarLoop]: Abstraction has 8226 states and 11497 transitions. [2023-12-02 19:03:03,629 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (31), 3 states have call predecessors, (31), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2023-12-02 19:03:03,629 INFO L276 IsEmpty]: Start isEmpty. Operand 8226 states and 11497 transitions. [2023-12-02 19:03:03,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2023-12-02 19:03:03,631 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:03:03,631 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 19:03:03,632 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2023-12-02 19:03:03,632 INFO L420 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_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2023-12-02 19:03:03,632 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:03:03,632 INFO L85 PathProgramCache]: Analyzing trace with hash -16849701, now seen corresponding path program 1 times [2023-12-02 19:03:03,632 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:03:03,632 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [549722422] [2023-12-02 19:03:03,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:03:03,633 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:03:03,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:03:04,376 INFO L134 CoverageAnalysis]: Checked inductivity of 421 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 421 trivial. 0 not checked. [2023-12-02 19:03:04,376 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:03:04,376 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [549722422] [2023-12-02 19:03:04,376 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [549722422] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:03:04,376 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 19:03:04,376 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-02 19:03:04,376 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [480923321] [2023-12-02 19:03:04,376 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:03:04,377 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-02 19:03:04,377 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 19:03:04,377 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-02 19:03:04,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-02 19:03:04,377 INFO L87 Difference]: Start difference. First operand 8226 states and 11497 transitions. Second operand has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 2 states have call successors, (35), 3 states have call predecessors, (35), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2023-12-02 19:03:08,720 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:03:15,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:03:15,216 INFO L93 Difference]: Finished difference Result 8234 states and 11504 transitions. [2023-12-02 19:03:15,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-02 19:03:15,216 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 2 states have call successors, (35), 3 states have call predecessors, (35), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) Word has length 204 [2023-12-02 19:03:15,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:03:15,232 INFO L225 Difference]: With dead ends: 8234 [2023-12-02 19:03:15,233 INFO L226 Difference]: Without dead ends: 8232 [2023-12-02 19:03:15,235 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-02 19:03:15,235 INFO L413 NwaCegarLoop]: 3379 mSDtfsCounter, 688 mSDsluCounter, 9737 mSDsCounter, 0 mSdLazyCounter, 1531 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 689 SdHoareTripleChecker+Valid, 13116 SdHoareTripleChecker+Invalid, 1533 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1531 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.6s IncrementalHoareTripleChecker+Time [2023-12-02 19:03:15,235 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [689 Valid, 13116 Invalid, 1533 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1531 Invalid, 1 Unknown, 0 Unchecked, 9.6s Time] [2023-12-02 19:03:15,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8232 states. [2023-12-02 19:03:16,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8232 to 8226. [2023-12-02 19:03:16,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8226 states, 4910 states have (on average 1.2810590631364562) internal successors, (6290), 5066 states have internal predecessors, (6290), 2535 states have call successors, (2535), 770 states have call predecessors, (2535), 772 states have return successors, (2666), 2508 states have call predecessors, (2666), 2531 states have call successors, (2666) [2023-12-02 19:03:16,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8226 states to 8226 states and 11491 transitions. [2023-12-02 19:03:16,333 INFO L78 Accepts]: Start accepts. Automaton has 8226 states and 11491 transitions. Word has length 204 [2023-12-02 19:03:16,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:03:16,333 INFO L495 AbstractCegarLoop]: Abstraction has 8226 states and 11491 transitions. [2023-12-02 19:03:16,333 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 2 states have call successors, (35), 3 states have call predecessors, (35), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2023-12-02 19:03:16,333 INFO L276 IsEmpty]: Start isEmpty. Operand 8226 states and 11491 transitions. [2023-12-02 19:03:16,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2023-12-02 19:03:16,335 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:03:16,336 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 9, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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] [2023-12-02 19:03:16,336 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2023-12-02 19:03:16,336 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2023-12-02 19:03:16,336 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:03:16,336 INFO L85 PathProgramCache]: Analyzing trace with hash -767451933, now seen corresponding path program 1 times [2023-12-02 19:03:16,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:03:16,337 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [989378969] [2023-12-02 19:03:16,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:03:16,337 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:03:16,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:03:17,403 INFO L134 CoverageAnalysis]: Checked inductivity of 621 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 621 trivial. 0 not checked. [2023-12-02 19:03:17,404 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:03:17,404 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [989378969] [2023-12-02 19:03:17,404 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [989378969] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:03:17,404 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 19:03:17,404 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-02 19:03:17,404 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2093343355] [2023-12-02 19:03:17,404 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:03:17,405 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-02 19:03:17,405 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 19:03:17,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-02 19:03:17,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-02 19:03:17,405 INFO L87 Difference]: Start difference. First operand 8226 states and 11491 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (33), 3 states have call predecessors, (33), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2023-12-02 19:03:19,916 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:03:25,241 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:03:27,056 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.81s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:03:31,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:03:31,055 INFO L93 Difference]: Finished difference Result 13807 states and 19107 transitions. [2023-12-02 19:03:31,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-02 19:03:31,056 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (33), 3 states have call predecessors, (33), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) Word has length 218 [2023-12-02 19:03:31,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:03:31,098 INFO L225 Difference]: With dead ends: 13807 [2023-12-02 19:03:31,098 INFO L226 Difference]: Without dead ends: 13805 [2023-12-02 19:03:31,103 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-02 19:03:31,103 INFO L413 NwaCegarLoop]: 3774 mSDtfsCounter, 3267 mSDsluCounter, 9917 mSDsCounter, 0 mSdLazyCounter, 1429 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3270 SdHoareTripleChecker+Valid, 13691 SdHoareTripleChecker+Invalid, 1432 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1429 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.4s IncrementalHoareTripleChecker+Time [2023-12-02 19:03:31,103 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3270 Valid, 13691 Invalid, 1432 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1429 Invalid, 0 Unknown, 0 Unchecked, 11.4s Time] [2023-12-02 19:03:31,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13805 states. [2023-12-02 19:03:33,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13805 to 13785. [2023-12-02 19:03:33,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13785 states, 8209 states have (on average 1.2744548666098185) internal successors, (10462), 8474 states have internal predecessors, (10462), 4203 states have call successors, (4203), 1365 states have call predecessors, (4203), 1364 states have return successors, (4420), 4157 states have call predecessors, (4420), 4199 states have call successors, (4420) [2023-12-02 19:03:33,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13785 states to 13785 states and 19085 transitions. [2023-12-02 19:03:33,096 INFO L78 Accepts]: Start accepts. Automaton has 13785 states and 19085 transitions. Word has length 218 [2023-12-02 19:03:33,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:03:33,097 INFO L495 AbstractCegarLoop]: Abstraction has 13785 states and 19085 transitions. [2023-12-02 19:03:33,097 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (33), 3 states have call predecessors, (33), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2023-12-02 19:03:33,097 INFO L276 IsEmpty]: Start isEmpty. Operand 13785 states and 19085 transitions. [2023-12-02 19:03:33,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2023-12-02 19:03:33,099 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:03:33,100 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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] [2023-12-02 19:03:33,100 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2023-12-02 19:03:33,100 INFO L420 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_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2023-12-02 19:03:33,100 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:03:33,100 INFO L85 PathProgramCache]: Analyzing trace with hash 234489982, now seen corresponding path program 1 times [2023-12-02 19:03:33,100 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:03:33,100 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [150200034] [2023-12-02 19:03:33,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:03:33,101 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:03:33,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:03:34,349 INFO L134 CoverageAnalysis]: Checked inductivity of 599 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 599 trivial. 0 not checked. [2023-12-02 19:03:34,349 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:03:34,349 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [150200034] [2023-12-02 19:03:34,349 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [150200034] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:03:34,349 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 19:03:34,349 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-02 19:03:34,349 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1731395538] [2023-12-02 19:03:34,349 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:03:34,350 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-02 19:03:34,350 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 19:03:34,350 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-02 19:03:34,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-02 19:03:34,351 INFO L87 Difference]: Start difference. First operand 13785 states and 19085 transitions. Second operand has 6 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (32), 3 states have call predecessors, (32), 2 states have call successors, (32) [2023-12-02 19:03:39,086 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:03:40,704 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:03:48,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:03:48,431 INFO L93 Difference]: Finished difference Result 22601 states and 30964 transitions. [2023-12-02 19:03:48,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-02 19:03:48,432 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (32), 3 states have call predecessors, (32), 2 states have call successors, (32) Word has length 225 [2023-12-02 19:03:48,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:03:48,466 INFO L225 Difference]: With dead ends: 22601 [2023-12-02 19:03:48,466 INFO L226 Difference]: Without dead ends: 13806 [2023-12-02 19:03:48,483 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-12-02 19:03:48,484 INFO L413 NwaCegarLoop]: 3337 mSDtfsCounter, 2 mSDsluCounter, 13337 mSDsCounter, 0 mSdLazyCounter, 1844 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 16674 SdHoareTripleChecker+Invalid, 1845 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1844 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.9s IncrementalHoareTripleChecker+Time [2023-12-02 19:03:48,484 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 16674 Invalid, 1845 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1844 Invalid, 1 Unknown, 0 Unchecked, 11.9s Time] [2023-12-02 19:03:48,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13806 states. [2023-12-02 19:03:50,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13806 to 13797. [2023-12-02 19:03:50,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13797 states, 8218 states have (on average 1.2741542954490144) internal successors, (10471), 8483 states have internal predecessors, (10471), 4203 states have call successors, (4203), 1365 states have call predecessors, (4203), 1367 states have return successors, (4426), 4160 states have call predecessors, (4426), 4199 states have call successors, (4426) [2023-12-02 19:03:50,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13797 states to 13797 states and 19100 transitions. [2023-12-02 19:03:50,485 INFO L78 Accepts]: Start accepts. Automaton has 13797 states and 19100 transitions. Word has length 225 [2023-12-02 19:03:50,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:03:50,485 INFO L495 AbstractCegarLoop]: Abstraction has 13797 states and 19100 transitions. [2023-12-02 19:03:50,485 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (32), 3 states have call predecessors, (32), 2 states have call successors, (32) [2023-12-02 19:03:50,485 INFO L276 IsEmpty]: Start isEmpty. Operand 13797 states and 19100 transitions. [2023-12-02 19:03:50,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 243 [2023-12-02 19:03:50,488 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:03:50,488 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 8, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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] [2023-12-02 19:03:50,488 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2023-12-02 19:03:50,488 INFO L420 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_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2023-12-02 19:03:50,489 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:03:50,489 INFO L85 PathProgramCache]: Analyzing trace with hash -984196658, now seen corresponding path program 1 times [2023-12-02 19:03:50,489 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:03:50,489 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1019555238] [2023-12-02 19:03:50,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:03:50,489 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:03:50,777 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-02 19:03:50,777 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [438405767] [2023-12-02 19:03:50,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:03:50,778 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 19:03:50,778 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af5414e3-0617-4494-a44b-8a9b2c022128/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 19:03:50,779 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af5414e3-0617-4494-a44b-8a9b2c022128/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 19:03:50,780 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af5414e3-0617-4494-a44b-8a9b2c022128/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-02 19:03:52,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:03:52,325 INFO L262 TraceCheckSpWp]: Trace formula consists of 4687 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-02 19:03:52,334 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 19:03:52,358 INFO L134 CoverageAnalysis]: Checked inductivity of 718 backedges. 54 proven. 0 refuted. 0 times theorem prover too weak. 664 trivial. 0 not checked. [2023-12-02 19:03:52,359 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 19:03:52,359 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:03:52,359 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1019555238] [2023-12-02 19:03:52,359 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-02 19:03:52,359 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [438405767] [2023-12-02 19:03:52,359 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [438405767] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:03:52,360 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 19:03:52,360 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 19:03:52,360 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1252346729] [2023-12-02 19:03:52,360 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:03:52,361 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 19:03:52,361 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 19:03:52,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 19:03:52,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 19:03:52,362 INFO L87 Difference]: Start difference. First operand 13797 states and 19100 transitions. Second operand has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 2 states have call successors, (39), 2 states have call predecessors, (39), 2 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) [2023-12-02 19:03:58,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:03:58,349 INFO L93 Difference]: Finished difference Result 24163 states and 33136 transitions. [2023-12-02 19:03:58,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 19:03:58,349 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 2 states have call successors, (39), 2 states have call predecessors, (39), 2 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) Word has length 242 [2023-12-02 19:03:58,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:03:58,382 INFO L225 Difference]: With dead ends: 24163 [2023-12-02 19:03:58,382 INFO L226 Difference]: Without dead ends: 13801 [2023-12-02 19:03:58,401 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 241 GetRequests, 240 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 19:03:58,402 INFO L413 NwaCegarLoop]: 3337 mSDtfsCounter, 102 mSDsluCounter, 3206 mSDsCounter, 0 mSdLazyCounter, 705 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 154 SdHoareTripleChecker+Valid, 6543 SdHoareTripleChecker+Invalid, 706 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 705 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2023-12-02 19:03:58,402 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [154 Valid, 6543 Invalid, 706 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 705 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2023-12-02 19:03:58,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13801 states. [2023-12-02 19:04:00,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13801 to 13797. [2023-12-02 19:04:00,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13797 states, 8218 states have (on average 1.2740326113409588) internal successors, (10470), 8482 states have internal predecessors, (10470), 4203 states have call successors, (4203), 1365 states have call predecessors, (4203), 1367 states have return successors, (4426), 4160 states have call predecessors, (4426), 4199 states have call successors, (4426) [2023-12-02 19:04:00,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13797 states to 13797 states and 19099 transitions. [2023-12-02 19:04:00,388 INFO L78 Accepts]: Start accepts. Automaton has 13797 states and 19099 transitions. Word has length 242 [2023-12-02 19:04:00,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:04:00,388 INFO L495 AbstractCegarLoop]: Abstraction has 13797 states and 19099 transitions. [2023-12-02 19:04:00,389 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 2 states have call successors, (39), 2 states have call predecessors, (39), 2 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) [2023-12-02 19:04:00,389 INFO L276 IsEmpty]: Start isEmpty. Operand 13797 states and 19099 transitions. [2023-12-02 19:04:00,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2023-12-02 19:04:00,391 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:04:00,392 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 19:04:00,406 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af5414e3-0617-4494-a44b-8a9b2c022128/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-12-02 19:04:00,592 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af5414e3-0617-4494-a44b-8a9b2c022128/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable33 [2023-12-02 19:04:00,592 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2023-12-02 19:04:00,593 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:04:00,593 INFO L85 PathProgramCache]: Analyzing trace with hash 842402472, now seen corresponding path program 1 times [2023-12-02 19:04:00,593 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:04:00,593 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1682237564] [2023-12-02 19:04:00,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:04:00,593 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:04:00,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:04:02,168 INFO L134 CoverageAnalysis]: Checked inductivity of 391 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 391 trivial. 0 not checked. [2023-12-02 19:04:02,168 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:04:02,168 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1682237564] [2023-12-02 19:04:02,168 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1682237564] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:04:02,169 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 19:04:02,169 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-02 19:04:02,169 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [365345938] [2023-12-02 19:04:02,169 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:04:02,169 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-02 19:04:02,169 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 19:04:02,170 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-02 19:04:02,170 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-02 19:04:02,170 INFO L87 Difference]: Start difference. First operand 13797 states and 19099 transitions. Second operand has 5 states, 5 states have (on average 19.4) internal successors, (97), 4 states have internal predecessors, (97), 2 states have call successors, (42), 3 states have call predecessors, (42), 1 states have return successors, (37), 2 states have call predecessors, (37), 2 states have call successors, (37) [2023-12-02 19:04:08,482 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:04:11,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:04:11,042 INFO L93 Difference]: Finished difference Result 16123 states and 21781 transitions. [2023-12-02 19:04:11,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-02 19:04:11,043 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.4) internal successors, (97), 4 states have internal predecessors, (97), 2 states have call successors, (42), 3 states have call predecessors, (42), 1 states have return successors, (37), 2 states have call predecessors, (37), 2 states have call successors, (37) Word has length 250 [2023-12-02 19:04:11,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:04:11,077 INFO L225 Difference]: With dead ends: 16123 [2023-12-02 19:04:11,078 INFO L226 Difference]: Without dead ends: 16121 [2023-12-02 19:04:11,082 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-02 19:04:11,083 INFO L413 NwaCegarLoop]: 3490 mSDtfsCounter, 3574 mSDsluCounter, 7237 mSDsCounter, 0 mSdLazyCounter, 1199 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3577 SdHoareTripleChecker+Valid, 10727 SdHoareTripleChecker+Invalid, 1201 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1199 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2023-12-02 19:04:11,083 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3577 Valid, 10727 Invalid, 1201 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1199 Invalid, 0 Unknown, 0 Unchecked, 6.4s Time] [2023-12-02 19:04:11,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16121 states. [2023-12-02 19:04:13,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16121 to 16113. [2023-12-02 19:04:13,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16113 states, 9464 states have (on average 1.2579247675401521) internal successors, (11905), 9776 states have internal predecessors, (11905), 4791 states have call successors, (4791), 1847 states have call predecessors, (4791), 1849 states have return successors, (5074), 4724 states have call predecessors, (5074), 4787 states have call successors, (5074) [2023-12-02 19:04:13,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16113 states to 16113 states and 21770 transitions. [2023-12-02 19:04:13,444 INFO L78 Accepts]: Start accepts. Automaton has 16113 states and 21770 transitions. Word has length 250 [2023-12-02 19:04:13,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:04:13,444 INFO L495 AbstractCegarLoop]: Abstraction has 16113 states and 21770 transitions. [2023-12-02 19:04:13,444 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.4) internal successors, (97), 4 states have internal predecessors, (97), 2 states have call successors, (42), 3 states have call predecessors, (42), 1 states have return successors, (37), 2 states have call predecessors, (37), 2 states have call successors, (37) [2023-12-02 19:04:13,444 INFO L276 IsEmpty]: Start isEmpty. Operand 16113 states and 21770 transitions. [2023-12-02 19:04:13,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 263 [2023-12-02 19:04:13,448 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:04:13,448 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 19:04:13,448 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2023-12-02 19:04:13,448 INFO L420 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_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2023-12-02 19:04:13,448 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:04:13,449 INFO L85 PathProgramCache]: Analyzing trace with hash 1173781335, now seen corresponding path program 1 times [2023-12-02 19:04:13,449 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:04:13,449 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [128452811] [2023-12-02 19:04:13,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:04:13,449 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:04:14,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:04:14,843 INFO L134 CoverageAnalysis]: Checked inductivity of 391 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 391 trivial. 0 not checked. [2023-12-02 19:04:14,843 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:04:14,843 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [128452811] [2023-12-02 19:04:14,843 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [128452811] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:04:14,843 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 19:04:14,844 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-02 19:04:14,844 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [394277992] [2023-12-02 19:04:14,844 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:04:14,845 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-02 19:04:14,845 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 19:04:14,845 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-02 19:04:14,846 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-02 19:04:14,846 INFO L87 Difference]: Start difference. First operand 16113 states and 21770 transitions. Second operand has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 2 states have call successors, (44), 3 states have call predecessors, (44), 2 states have return successors, (39), 2 states have call predecessors, (39), 1 states have call successors, (39) [2023-12-02 19:04:25,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:04:25,770 INFO L93 Difference]: Finished difference Result 16121 states and 21774 transitions. [2023-12-02 19:04:25,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-02 19:04:25,771 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 2 states have call successors, (44), 3 states have call predecessors, (44), 2 states have return successors, (39), 2 states have call predecessors, (39), 1 states have call successors, (39) Word has length 262 [2023-12-02 19:04:25,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:04:25,807 INFO L225 Difference]: With dead ends: 16121 [2023-12-02 19:04:25,807 INFO L226 Difference]: Without dead ends: 16119 [2023-12-02 19:04:25,812 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-02 19:04:25,813 INFO L413 NwaCegarLoop]: 3389 mSDtfsCounter, 299 mSDsluCounter, 10059 mSDsCounter, 0 mSdLazyCounter, 1530 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 300 SdHoareTripleChecker+Valid, 13448 SdHoareTripleChecker+Invalid, 1530 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1530 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.3s IncrementalHoareTripleChecker+Time [2023-12-02 19:04:25,813 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [300 Valid, 13448 Invalid, 1530 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1530 Invalid, 0 Unknown, 0 Unchecked, 8.3s Time] [2023-12-02 19:04:25,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16119 states. [2023-12-02 19:04:28,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16119 to 16113. [2023-12-02 19:04:28,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16113 states, 9464 states have (on average 1.25729078613694) internal successors, (11899), 9776 states have internal predecessors, (11899), 4791 states have call successors, (4791), 1847 states have call predecessors, (4791), 1849 states have return successors, (5074), 4724 states have call predecessors, (5074), 4787 states have call successors, (5074) [2023-12-02 19:04:28,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16113 states to 16113 states and 21764 transitions. [2023-12-02 19:04:28,228 INFO L78 Accepts]: Start accepts. Automaton has 16113 states and 21764 transitions. Word has length 262 [2023-12-02 19:04:28,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:04:28,229 INFO L495 AbstractCegarLoop]: Abstraction has 16113 states and 21764 transitions. [2023-12-02 19:04:28,229 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 2 states have call successors, (44), 3 states have call predecessors, (44), 2 states have return successors, (39), 2 states have call predecessors, (39), 1 states have call successors, (39) [2023-12-02 19:04:28,229 INFO L276 IsEmpty]: Start isEmpty. Operand 16113 states and 21764 transitions. [2023-12-02 19:04:28,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2023-12-02 19:04:28,232 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:04:28,232 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 10, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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] [2023-12-02 19:04:28,232 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2023-12-02 19:04:28,232 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2023-12-02 19:04:28,232 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:04:28,233 INFO L85 PathProgramCache]: Analyzing trace with hash 1401033279, now seen corresponding path program 1 times [2023-12-02 19:04:28,233 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:04:28,233 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [235123305] [2023-12-02 19:04:28,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:04:28,233 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:04:28,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:04:29,061 INFO L134 CoverageAnalysis]: Checked inductivity of 744 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 744 trivial. 0 not checked. [2023-12-02 19:04:29,061 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:04:29,062 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [235123305] [2023-12-02 19:04:29,062 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [235123305] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:04:29,062 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 19:04:29,062 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-02 19:04:29,062 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1900037380] [2023-12-02 19:04:29,062 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:04:29,063 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-02 19:04:29,063 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 19:04:29,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-02 19:04:29,063 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-02 19:04:29,064 INFO L87 Difference]: Start difference. First operand 16113 states and 21764 transitions. Second operand has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (41), 3 states have call predecessors, (41), 2 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) [2023-12-02 19:04:38,227 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:04:39,824 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.60s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:04:41,213 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:04:44,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:04:44,613 INFO L93 Difference]: Finished difference Result 16115 states and 21765 transitions. [2023-12-02 19:04:44,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-02 19:04:44,613 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (41), 3 states have call predecessors, (41), 2 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) Word has length 250 [2023-12-02 19:04:44,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:04:44,649 INFO L225 Difference]: With dead ends: 16115 [2023-12-02 19:04:44,649 INFO L226 Difference]: Without dead ends: 16113 [2023-12-02 19:04:44,654 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-02 19:04:44,654 INFO L413 NwaCegarLoop]: 3337 mSDtfsCounter, 26 mSDsluCounter, 9975 mSDsCounter, 0 mSdLazyCounter, 1490 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 13312 SdHoareTripleChecker+Invalid, 1492 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1490 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.1s IncrementalHoareTripleChecker+Time [2023-12-02 19:04:44,654 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 13312 Invalid, 1492 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1490 Invalid, 1 Unknown, 0 Unchecked, 13.1s Time] [2023-12-02 19:04:44,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16113 states. [2023-12-02 19:04:46,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16113 to 16113. [2023-12-02 19:04:46,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16113 states, 9464 states have (on average 1.256973795435334) internal successors, (11896), 9776 states have internal predecessors, (11896), 4791 states have call successors, (4791), 1847 states have call predecessors, (4791), 1849 states have return successors, (5074), 4724 states have call predecessors, (5074), 4787 states have call successors, (5074) [2023-12-02 19:04:46,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16113 states to 16113 states and 21761 transitions. [2023-12-02 19:04:46,955 INFO L78 Accepts]: Start accepts. Automaton has 16113 states and 21761 transitions. Word has length 250 [2023-12-02 19:04:46,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:04:46,956 INFO L495 AbstractCegarLoop]: Abstraction has 16113 states and 21761 transitions. [2023-12-02 19:04:46,956 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (41), 3 states have call predecessors, (41), 2 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) [2023-12-02 19:04:46,956 INFO L276 IsEmpty]: Start isEmpty. Operand 16113 states and 21761 transitions. [2023-12-02 19:04:46,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 250 [2023-12-02 19:04:46,959 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:04:46,959 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 11, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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] [2023-12-02 19:04:46,959 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2023-12-02 19:04:46,959 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2023-12-02 19:04:46,960 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:04:46,960 INFO L85 PathProgramCache]: Analyzing trace with hash -1617459604, now seen corresponding path program 1 times [2023-12-02 19:04:46,960 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:04:46,960 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1054213017] [2023-12-02 19:04:46,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:04:46,960 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:04:47,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:04:48,071 INFO L134 CoverageAnalysis]: Checked inductivity of 710 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 710 trivial. 0 not checked. [2023-12-02 19:04:48,071 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:04:48,072 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1054213017] [2023-12-02 19:04:48,072 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1054213017] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:04:48,072 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 19:04:48,072 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-02 19:04:48,072 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [525198227] [2023-12-02 19:04:48,072 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:04:48,073 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-02 19:04:48,073 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 19:04:48,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-02 19:04:48,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-02 19:04:48,073 INFO L87 Difference]: Start difference. First operand 16113 states and 21761 transitions. Second operand has 5 states, 5 states have (on average 15.0) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (39), 3 states have call predecessors, (39), 2 states have return successors, (36), 2 states have call predecessors, (36), 1 states have call successors, (36) [2023-12-02 19:05:01,177 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:05:02,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:05:02,725 INFO L93 Difference]: Finished difference Result 16125 states and 21767 transitions. [2023-12-02 19:05:02,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-02 19:05:02,726 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (39), 3 states have call predecessors, (39), 2 states have return successors, (36), 2 states have call predecessors, (36), 1 states have call successors, (36) Word has length 249 [2023-12-02 19:05:02,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:05:02,764 INFO L225 Difference]: With dead ends: 16125 [2023-12-02 19:05:02,764 INFO L226 Difference]: Without dead ends: 16123 [2023-12-02 19:05:02,770 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-02 19:05:02,770 INFO L413 NwaCegarLoop]: 4932 mSDtfsCounter, 2600 mSDsluCounter, 12850 mSDsCounter, 0 mSdLazyCounter, 1927 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2601 SdHoareTripleChecker+Valid, 17782 SdHoareTripleChecker+Invalid, 1927 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1927 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.1s IncrementalHoareTripleChecker+Time [2023-12-02 19:05:02,771 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2601 Valid, 17782 Invalid, 1927 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1927 Invalid, 0 Unknown, 0 Unchecked, 12.1s Time] [2023-12-02 19:05:02,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16123 states. [2023-12-02 19:05:05,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16123 to 16113. [2023-12-02 19:05:05,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16113 states, 9464 states have (on average 1.2566568047337279) internal successors, (11893), 9776 states have internal predecessors, (11893), 4791 states have call successors, (4791), 1847 states have call predecessors, (4791), 1849 states have return successors, (5074), 4724 states have call predecessors, (5074), 4787 states have call successors, (5074) [2023-12-02 19:05:05,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16113 states to 16113 states and 21758 transitions. [2023-12-02 19:05:05,172 INFO L78 Accepts]: Start accepts. Automaton has 16113 states and 21758 transitions. Word has length 249 [2023-12-02 19:05:05,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:05:05,173 INFO L495 AbstractCegarLoop]: Abstraction has 16113 states and 21758 transitions. [2023-12-02 19:05:05,173 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (39), 3 states have call predecessors, (39), 2 states have return successors, (36), 2 states have call predecessors, (36), 1 states have call successors, (36) [2023-12-02 19:05:05,173 INFO L276 IsEmpty]: Start isEmpty. Operand 16113 states and 21758 transitions. [2023-12-02 19:05:05,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 276 [2023-12-02 19:05:05,177 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:05:05,177 INFO L195 NwaCegarLoop]: trace histogram [22, 22, 11, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 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] [2023-12-02 19:05:05,177 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2023-12-02 19:05:05,177 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2023-12-02 19:05:05,177 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:05:05,177 INFO L85 PathProgramCache]: Analyzing trace with hash 930389264, now seen corresponding path program 1 times [2023-12-02 19:05:05,178 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:05:05,178 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [142710772] [2023-12-02 19:05:05,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:05:05,178 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:05:05,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:05:06,275 INFO L134 CoverageAnalysis]: Checked inductivity of 1061 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1061 trivial. 0 not checked. [2023-12-02 19:05:06,275 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:05:06,275 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [142710772] [2023-12-02 19:05:06,275 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [142710772] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:05:06,276 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 19:05:06,276 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-02 19:05:06,276 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1748396104] [2023-12-02 19:05:06,276 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:05:06,276 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-02 19:05:06,276 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 19:05:06,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-02 19:05:06,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-02 19:05:06,277 INFO L87 Difference]: Start difference. First operand 16113 states and 21758 transitions. Second operand has 5 states, 5 states have (on average 14.4) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (39), 3 states have call predecessors, (39), 1 states have return successors, (37), 2 states have call predecessors, (37), 2 states have call successors, (37) [2023-12-02 19:05:18,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:05:18,800 INFO L93 Difference]: Finished difference Result 25881 states and 34641 transitions. [2023-12-02 19:05:18,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-02 19:05:18,800 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (39), 3 states have call predecessors, (39), 1 states have return successors, (37), 2 states have call predecessors, (37), 2 states have call successors, (37) Word has length 275 [2023-12-02 19:05:18,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:05:18,863 INFO L225 Difference]: With dead ends: 25881 [2023-12-02 19:05:18,863 INFO L226 Difference]: Without dead ends: 25879 [2023-12-02 19:05:18,871 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-02 19:05:18,872 INFO L413 NwaCegarLoop]: 3351 mSDtfsCounter, 3544 mSDsluCounter, 9422 mSDsCounter, 0 mSdLazyCounter, 1396 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3547 SdHoareTripleChecker+Valid, 12773 SdHoareTripleChecker+Invalid, 1399 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1396 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.4s IncrementalHoareTripleChecker+Time [2023-12-02 19:05:18,872 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3547 Valid, 12773 Invalid, 1399 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1396 Invalid, 0 Unknown, 0 Unchecked, 8.4s Time] [2023-12-02 19:05:18,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25879 states. [2023-12-02 19:05:22,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25879 to 25856. [2023-12-02 19:05:22,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25856 states, 15177 states have (on average 1.2535415431244648) internal successors, (19025), 15670 states have internal predecessors, (19025), 7573 states have call successors, (7573), 3095 states have call predecessors, (7573), 3097 states have return successors, (8023), 7452 states have call predecessors, (8023), 7569 states have call successors, (8023) [2023-12-02 19:05:22,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25856 states to 25856 states and 34621 transitions. [2023-12-02 19:05:22,822 INFO L78 Accepts]: Start accepts. Automaton has 25856 states and 34621 transitions. Word has length 275 [2023-12-02 19:05:22,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:05:22,823 INFO L495 AbstractCegarLoop]: Abstraction has 25856 states and 34621 transitions. [2023-12-02 19:05:22,823 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (39), 3 states have call predecessors, (39), 1 states have return successors, (37), 2 states have call predecessors, (37), 2 states have call successors, (37) [2023-12-02 19:05:22,823 INFO L276 IsEmpty]: Start isEmpty. Operand 25856 states and 34621 transitions. [2023-12-02 19:05:22,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 291 [2023-12-02 19:05:22,828 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:05:22,828 INFO L195 NwaCegarLoop]: trace histogram [22, 22, 12, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 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] [2023-12-02 19:05:22,828 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2023-12-02 19:05:22,828 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2023-12-02 19:05:22,828 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:05:22,828 INFO L85 PathProgramCache]: Analyzing trace with hash 1058579923, now seen corresponding path program 1 times [2023-12-02 19:05:22,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:05:22,829 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [163915518] [2023-12-02 19:05:22,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:05:22,829 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:05:23,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:05:23,270 INFO L134 CoverageAnalysis]: Checked inductivity of 1083 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1083 trivial. 0 not checked. [2023-12-02 19:05:23,270 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:05:23,270 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [163915518] [2023-12-02 19:05:23,271 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [163915518] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:05:23,271 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 19:05:23,271 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 19:05:23,271 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [201361263] [2023-12-02 19:05:23,271 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:05:23,272 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 19:05:23,272 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 19:05:23,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 19:05:23,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 19:05:23,273 INFO L87 Difference]: Start difference. First operand 25856 states and 34621 transitions. Second operand has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (42), 2 states have call predecessors, (42), 1 states have return successors, (40), 1 states have call predecessors, (40), 1 states have call successors, (40) [2023-12-02 19:05:25,300 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:05:31,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:05:31,736 INFO L93 Difference]: Finished difference Result 45660 states and 60800 transitions. [2023-12-02 19:05:31,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 19:05:31,737 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (42), 2 states have call predecessors, (42), 1 states have return successors, (40), 1 states have call predecessors, (40), 1 states have call successors, (40) Word has length 290 [2023-12-02 19:05:31,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:05:31,822 INFO L225 Difference]: With dead ends: 45660 [2023-12-02 19:05:31,822 INFO L226 Difference]: Without dead ends: 25925 [2023-12-02 19:05:31,863 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 19:05:31,863 INFO L413 NwaCegarLoop]: 3333 mSDtfsCounter, 40 mSDsluCounter, 3302 mSDsCounter, 0 mSdLazyCounter, 741 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 6635 SdHoareTripleChecker+Invalid, 744 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 741 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2023-12-02 19:05:31,864 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 6635 Invalid, 744 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 741 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2023-12-02 19:05:31,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25925 states. [2023-12-02 19:05:35,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25925 to 25889. [2023-12-02 19:05:35,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25889 states, 15207 states have (on average 1.253830472808575) internal successors, (19067), 15700 states have internal predecessors, (19067), 7576 states have call successors, (7576), 3095 states have call predecessors, (7576), 3097 states have return successors, (8026), 7455 states have call predecessors, (8026), 7572 states have call successors, (8026) [2023-12-02 19:05:35,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25889 states to 25889 states and 34669 transitions. [2023-12-02 19:05:35,858 INFO L78 Accepts]: Start accepts. Automaton has 25889 states and 34669 transitions. Word has length 290 [2023-12-02 19:05:35,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:05:35,859 INFO L495 AbstractCegarLoop]: Abstraction has 25889 states and 34669 transitions. [2023-12-02 19:05:35,859 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (42), 2 states have call predecessors, (42), 1 states have return successors, (40), 1 states have call predecessors, (40), 1 states have call successors, (40) [2023-12-02 19:05:35,859 INFO L276 IsEmpty]: Start isEmpty. Operand 25889 states and 34669 transitions. [2023-12-02 19:05:35,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 305 [2023-12-02 19:05:35,865 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:05:35,865 INFO L195 NwaCegarLoop]: trace histogram [22, 22, 12, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 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] [2023-12-02 19:05:35,865 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2023-12-02 19:05:35,865 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2023-12-02 19:05:35,866 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:05:35,866 INFO L85 PathProgramCache]: Analyzing trace with hash -1995839888, now seen corresponding path program 1 times [2023-12-02 19:05:35,866 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:05:35,866 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1354591340] [2023-12-02 19:05:35,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:05:35,866 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:05:36,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:05:37,536 INFO L134 CoverageAnalysis]: Checked inductivity of 1085 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1085 trivial. 0 not checked. [2023-12-02 19:05:37,536 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:05:37,536 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1354591340] [2023-12-02 19:05:37,537 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1354591340] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:05:37,537 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 19:05:37,537 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-02 19:05:37,537 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [18969755] [2023-12-02 19:05:37,537 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:05:37,538 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-02 19:05:37,538 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 19:05:37,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-02 19:05:37,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-12-02 19:05:37,539 INFO L87 Difference]: Start difference. First operand 25889 states and 34669 transitions. Second operand has 8 states, 7 states have (on average 12.714285714285714) internal successors, (89), 6 states have internal predecessors, (89), 2 states have call successors, (44), 3 states have call predecessors, (44), 2 states have return successors, (42), 3 states have call predecessors, (42), 2 states have call successors, (42) [2023-12-02 19:05:46,393 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:05:53,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:05:53,794 INFO L93 Difference]: Finished difference Result 26116 states and 34985 transitions. [2023-12-02 19:05:53,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-02 19:05:53,795 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 12.714285714285714) internal successors, (89), 6 states have internal predecessors, (89), 2 states have call successors, (44), 3 states have call predecessors, (44), 2 states have return successors, (42), 3 states have call predecessors, (42), 2 states have call successors, (42) Word has length 304 [2023-12-02 19:05:53,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:05:53,863 INFO L225 Difference]: With dead ends: 26116 [2023-12-02 19:05:53,863 INFO L226 Difference]: Without dead ends: 26114 [2023-12-02 19:05:53,870 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2023-12-02 19:05:53,871 INFO L413 NwaCegarLoop]: 3354 mSDtfsCounter, 120 mSDsluCounter, 16677 mSDsCounter, 0 mSdLazyCounter, 2264 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 20031 SdHoareTripleChecker+Invalid, 2293 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 2264 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.2s IncrementalHoareTripleChecker+Time [2023-12-02 19:05:53,871 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [122 Valid, 20031 Invalid, 2293 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [29 Valid, 2264 Invalid, 0 Unknown, 0 Unchecked, 12.2s Time] [2023-12-02 19:05:53,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26114 states. [2023-12-02 19:05:57,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26114 to 26108. [2023-12-02 19:05:57,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26108 states, 15354 states have (on average 1.2551126742217011) internal successors, (19271), 15862 states have internal predecessors, (19271), 7627 states have call successors, (7627), 3119 states have call predecessors, (7627), 3118 states have return successors, (8077), 7488 states have call predecessors, (8077), 7623 states have call successors, (8077) [2023-12-02 19:05:57,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26108 states to 26108 states and 34975 transitions. [2023-12-02 19:05:57,903 INFO L78 Accepts]: Start accepts. Automaton has 26108 states and 34975 transitions. Word has length 304 [2023-12-02 19:05:57,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:05:57,904 INFO L495 AbstractCegarLoop]: Abstraction has 26108 states and 34975 transitions. [2023-12-02 19:05:57,904 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 12.714285714285714) internal successors, (89), 6 states have internal predecessors, (89), 2 states have call successors, (44), 3 states have call predecessors, (44), 2 states have return successors, (42), 3 states have call predecessors, (42), 2 states have call successors, (42) [2023-12-02 19:05:57,904 INFO L276 IsEmpty]: Start isEmpty. Operand 26108 states and 34975 transitions. [2023-12-02 19:05:57,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 299 [2023-12-02 19:05:57,911 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:05:57,911 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 9, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2023-12-02 19:05:57,911 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2023-12-02 19:05:57,912 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting ldv_linux_usb_urb_usb_free_urbErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2023-12-02 19:05:57,912 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:05:57,912 INFO L85 PathProgramCache]: Analyzing trace with hash 1194036775, now seen corresponding path program 1 times [2023-12-02 19:05:57,912 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:05:57,912 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [334675169] [2023-12-02 19:05:57,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:05:57,912 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:06:03,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:06:04,528 INFO L134 CoverageAnalysis]: Checked inductivity of 495 backedges. 2 proven. 22 refuted. 0 times theorem prover too weak. 471 trivial. 0 not checked. [2023-12-02 19:06:04,528 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:06:04,529 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [334675169] [2023-12-02 19:06:04,529 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [334675169] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 19:06:04,529 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1452005011] [2023-12-02 19:06:04,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:06:04,529 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 19:06:04,529 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af5414e3-0617-4494-a44b-8a9b2c022128/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 19:06:04,531 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af5414e3-0617-4494-a44b-8a9b2c022128/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 19:06:04,534 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af5414e3-0617-4494-a44b-8a9b2c022128/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-02 19:06:06,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:06:06,265 INFO L262 TraceCheckSpWp]: Trace formula consists of 5029 conjuncts, 15 conjunts are in the unsatisfiable core [2023-12-02 19:06:06,275 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 19:06:06,326 INFO L134 CoverageAnalysis]: Checked inductivity of 495 backedges. 96 proven. 0 refuted. 0 times theorem prover too weak. 399 trivial. 0 not checked. [2023-12-02 19:06:06,326 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 19:06:06,326 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1452005011] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:06:06,327 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-02 19:06:06,327 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [8] total 11 [2023-12-02 19:06:06,327 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1248851202] [2023-12-02 19:06:06,327 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:06:06,328 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-02 19:06:06,328 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 19:06:06,328 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-02 19:06:06,328 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2023-12-02 19:06:06,329 INFO L87 Difference]: Start difference. First operand 26108 states and 34975 transitions. Second operand has 7 states, 6 states have (on average 14.333333333333334) internal successors, (86), 6 states have internal predecessors, (86), 2 states have call successors, (51), 2 states have call predecessors, (51), 3 states have return successors, (49), 3 states have call predecessors, (49), 2 states have call successors, (49) [2023-12-02 19:06:12,807 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:06:17,904 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:06:19,688 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:06:20,901 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:06:26,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:06:26,510 INFO L93 Difference]: Finished difference Result 49263 states and 66031 transitions. [2023-12-02 19:06:26,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-02 19:06:26,510 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 14.333333333333334) internal successors, (86), 6 states have internal predecessors, (86), 2 states have call successors, (51), 2 states have call predecessors, (51), 3 states have return successors, (49), 3 states have call predecessors, (49), 2 states have call successors, (49) Word has length 298 [2023-12-02 19:06:26,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:06:26,576 INFO L225 Difference]: With dead ends: 49263 [2023-12-02 19:06:26,576 INFO L226 Difference]: Without dead ends: 27510 [2023-12-02 19:06:26,611 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 308 GetRequests, 296 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2023-12-02 19:06:26,611 INFO L413 NwaCegarLoop]: 3330 mSDtfsCounter, 266 mSDsluCounter, 16535 mSDsCounter, 0 mSdLazyCounter, 2455 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 406 SdHoareTripleChecker+Valid, 19865 SdHoareTripleChecker+Invalid, 2460 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 2455 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.8s IncrementalHoareTripleChecker+Time [2023-12-02 19:06:26,611 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [406 Valid, 19865 Invalid, 2460 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4 Valid, 2455 Invalid, 1 Unknown, 0 Unchecked, 15.8s Time] [2023-12-02 19:06:26,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27510 states. [2023-12-02 19:06:30,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27510 to 26104. [2023-12-02 19:06:30,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26104 states, 15352 states have (on average 1.2550807712350183) internal successors, (19268), 15860 states have internal predecessors, (19268), 7626 states have call successors, (7626), 3118 states have call predecessors, (7626), 3117 states have return successors, (8076), 7487 states have call predecessors, (8076), 7622 states have call successors, (8076) [2023-12-02 19:06:30,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26104 states to 26104 states and 34970 transitions. [2023-12-02 19:06:30,762 INFO L78 Accepts]: Start accepts. Automaton has 26104 states and 34970 transitions. Word has length 298 [2023-12-02 19:06:30,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:06:30,763 INFO L495 AbstractCegarLoop]: Abstraction has 26104 states and 34970 transitions. [2023-12-02 19:06:30,763 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 14.333333333333334) internal successors, (86), 6 states have internal predecessors, (86), 2 states have call successors, (51), 2 states have call predecessors, (51), 3 states have return successors, (49), 3 states have call predecessors, (49), 2 states have call successors, (49) [2023-12-02 19:06:30,763 INFO L276 IsEmpty]: Start isEmpty. Operand 26104 states and 34970 transitions. [2023-12-02 19:06:30,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 425 [2023-12-02 19:06:30,771 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:06:30,772 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 9, 8, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 19:06:30,786 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af5414e3-0617-4494-a44b-8a9b2c022128/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-12-02 19:06:30,972 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af5414e3-0617-4494-a44b-8a9b2c022128/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable41 [2023-12-02 19:06:30,972 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting ldv_linux_usb_urb_usb_free_urbErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2023-12-02 19:06:30,973 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:06:30,973 INFO L85 PathProgramCache]: Analyzing trace with hash 993237814, now seen corresponding path program 1 times [2023-12-02 19:06:30,973 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:06:30,973 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [262033963] [2023-12-02 19:06:30,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:06:30,973 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:06:32,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:06:34,120 INFO L134 CoverageAnalysis]: Checked inductivity of 844 backedges. 26 proven. 6 refuted. 0 times theorem prover too weak. 812 trivial. 0 not checked. [2023-12-02 19:06:34,120 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:06:34,120 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [262033963] [2023-12-02 19:06:34,120 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [262033963] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 19:06:34,120 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1604317901] [2023-12-02 19:06:34,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:06:34,120 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 19:06:34,121 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af5414e3-0617-4494-a44b-8a9b2c022128/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 19:06:34,121 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af5414e3-0617-4494-a44b-8a9b2c022128/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 19:06:34,124 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af5414e3-0617-4494-a44b-8a9b2c022128/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-12-02 19:06:35,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:06:35,912 INFO L262 TraceCheckSpWp]: Trace formula consists of 5803 conjuncts, 19 conjunts are in the unsatisfiable core [2023-12-02 19:06:35,922 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 19:06:36,033 INFO L134 CoverageAnalysis]: Checked inductivity of 844 backedges. 222 proven. 0 refuted. 0 times theorem prover too weak. 622 trivial. 0 not checked. [2023-12-02 19:06:36,034 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 19:06:36,034 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1604317901] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:06:36,034 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-02 19:06:36,034 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [11] total 13 [2023-12-02 19:06:36,034 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2039359464] [2023-12-02 19:06:36,034 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:06:36,035 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-02 19:06:36,035 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 19:06:36,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-02 19:06:36,036 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2023-12-02 19:06:36,037 INFO L87 Difference]: Start difference. First operand 26104 states and 34970 transitions. Second operand has 11 states, 8 states have (on average 15.5) internal successors, (124), 10 states have internal predecessors, (124), 6 states have call successors, (64), 2 states have call predecessors, (64), 4 states have return successors, (60), 6 states have call predecessors, (60), 6 states have call successors, (60) [2023-12-02 19:06:45,442 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.61s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:06:51,880 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:07:03,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:07:03,542 INFO L93 Difference]: Finished difference Result 53442 states and 71983 transitions. [2023-12-02 19:07:03,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-02 19:07:03,542 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 8 states have (on average 15.5) internal successors, (124), 10 states have internal predecessors, (124), 6 states have call successors, (64), 2 states have call predecessors, (64), 4 states have return successors, (60), 6 states have call predecessors, (60), 6 states have call successors, (60) Word has length 424 [2023-12-02 19:07:03,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:07:03,617 INFO L225 Difference]: With dead ends: 53442 [2023-12-02 19:07:03,617 INFO L226 Difference]: Without dead ends: 27534 [2023-12-02 19:07:03,660 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 440 GetRequests, 423 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=61, Invalid=281, Unknown=0, NotChecked=0, Total=342 [2023-12-02 19:07:03,661 INFO L413 NwaCegarLoop]: 3726 mSDtfsCounter, 250 mSDsluCounter, 33155 mSDsCounter, 0 mSdLazyCounter, 4707 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 382 SdHoareTripleChecker+Valid, 36881 SdHoareTripleChecker+Invalid, 4725 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 4707 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22.9s IncrementalHoareTripleChecker+Time [2023-12-02 19:07:03,661 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [382 Valid, 36881 Invalid, 4725 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [18 Valid, 4707 Invalid, 0 Unknown, 0 Unchecked, 22.9s Time] [2023-12-02 19:07:03,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27534 states. [2023-12-02 19:07:07,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27534 to 26117. [2023-12-02 19:07:07,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26117 states, 15360 states have (on average 1.2549479166666666) internal successors, (19276), 15868 states have internal predecessors, (19276), 7631 states have call successors, (7631), 3118 states have call predecessors, (7631), 3117 states have return successors, (8081), 7492 states have call predecessors, (8081), 7627 states have call successors, (8081) [2023-12-02 19:07:07,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26117 states to 26117 states and 34988 transitions. [2023-12-02 19:07:07,873 INFO L78 Accepts]: Start accepts. Automaton has 26117 states and 34988 transitions. Word has length 424 [2023-12-02 19:07:07,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:07:07,873 INFO L495 AbstractCegarLoop]: Abstraction has 26117 states and 34988 transitions. [2023-12-02 19:07:07,873 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 8 states have (on average 15.5) internal successors, (124), 10 states have internal predecessors, (124), 6 states have call successors, (64), 2 states have call predecessors, (64), 4 states have return successors, (60), 6 states have call predecessors, (60), 6 states have call successors, (60) [2023-12-02 19:07:07,873 INFO L276 IsEmpty]: Start isEmpty. Operand 26117 states and 34988 transitions. [2023-12-02 19:07:07,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 308 [2023-12-02 19:07:07,881 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:07:07,881 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 9, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2023-12-02 19:07:07,896 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af5414e3-0617-4494-a44b-8a9b2c022128/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-12-02 19:07:08,081 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af5414e3-0617-4494-a44b-8a9b2c022128/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable42 [2023-12-02 19:07:08,082 INFO L420 AbstractCegarLoop]: === Iteration 44 === Targeting ldv_linux_usb_urb_usb_free_urbErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2023-12-02 19:07:08,082 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:07:08,082 INFO L85 PathProgramCache]: Analyzing trace with hash 1198557634, now seen corresponding path program 1 times [2023-12-02 19:07:08,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:07:08,082 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [925483432] [2023-12-02 19:07:08,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:07:08,083 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:07:08,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:07:09,551 INFO L134 CoverageAnalysis]: Checked inductivity of 495 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 495 trivial. 0 not checked. [2023-12-02 19:07:09,552 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:07:09,552 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [925483432] [2023-12-02 19:07:09,552 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [925483432] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:07:09,552 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 19:07:09,552 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-02 19:07:09,552 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [866026203] [2023-12-02 19:07:09,552 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:07:09,553 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-02 19:07:09,553 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 19:07:09,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-02 19:07:09,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-02 19:07:09,553 INFO L87 Difference]: Start difference. First operand 26117 states and 34988 transitions. Second operand has 5 states, 5 states have (on average 17.2) internal successors, (86), 5 states have internal predecessors, (86), 4 states have call successors, (53), 2 states have call predecessors, (53), 2 states have return successors, (51), 4 states have call predecessors, (51), 4 states have call successors, (51) [2023-12-02 19:07:17,793 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:07:19,802 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:07:30,933 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:07:40,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:07:40,377 INFO L93 Difference]: Finished difference Result 52224 states and 69600 transitions. [2023-12-02 19:07:40,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-02 19:07:40,377 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 5 states have internal predecessors, (86), 4 states have call successors, (53), 2 states have call predecessors, (53), 2 states have return successors, (51), 4 states have call predecessors, (51), 4 states have call successors, (51) Word has length 307 [2023-12-02 19:07:40,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:07:40,455 INFO L225 Difference]: With dead ends: 52224 [2023-12-02 19:07:40,455 INFO L226 Difference]: Without dead ends: 30469 [2023-12-02 19:07:40,493 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-12-02 19:07:40,494 INFO L413 NwaCegarLoop]: 4621 mSDtfsCounter, 2456 mSDsluCounter, 9364 mSDsCounter, 0 mSdLazyCounter, 5572 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2458 SdHoareTripleChecker+Valid, 13985 SdHoareTripleChecker+Invalid, 5582 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 5572 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 24.9s IncrementalHoareTripleChecker+Time [2023-12-02 19:07:40,494 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2458 Valid, 13985 Invalid, 5582 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [9 Valid, 5572 Invalid, 1 Unknown, 0 Unchecked, 24.9s Time] [2023-12-02 19:07:40,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30469 states. [2023-12-02 19:07:45,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30469 to 29864. [2023-12-02 19:07:45,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29864 states, 17609 states have (on average 1.2593560111306719) internal successors, (22176), 18187 states have internal predecessors, (22176), 8661 states have call successors, (8661), 3590 states have call predecessors, (8661), 3585 states have return successors, (9287), 8464 states have call predecessors, (9287), 8657 states have call successors, (9287) [2023-12-02 19:07:45,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29864 states to 29864 states and 40124 transitions. [2023-12-02 19:07:45,380 INFO L78 Accepts]: Start accepts. Automaton has 29864 states and 40124 transitions. Word has length 307 [2023-12-02 19:07:45,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:07:45,381 INFO L495 AbstractCegarLoop]: Abstraction has 29864 states and 40124 transitions. [2023-12-02 19:07:45,381 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 5 states have internal predecessors, (86), 4 states have call successors, (53), 2 states have call predecessors, (53), 2 states have return successors, (51), 4 states have call predecessors, (51), 4 states have call successors, (51) [2023-12-02 19:07:45,381 INFO L276 IsEmpty]: Start isEmpty. Operand 29864 states and 40124 transitions. [2023-12-02 19:07:45,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 436 [2023-12-02 19:07:45,393 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:07:45,394 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 10, 8, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 19:07:45,394 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2023-12-02 19:07:45,394 INFO L420 AbstractCegarLoop]: === Iteration 45 === Targeting ldv_linux_usb_urb_usb_free_urbErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2023-12-02 19:07:45,394 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:07:45,394 INFO L85 PathProgramCache]: Analyzing trace with hash 813279681, now seen corresponding path program 1 times [2023-12-02 19:07:45,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:07:45,394 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1575812308] [2023-12-02 19:07:45,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:07:45,395 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:07:45,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:07:46,164 INFO L134 CoverageAnalysis]: Checked inductivity of 892 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 892 trivial. 0 not checked. [2023-12-02 19:07:46,164 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:07:46,164 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1575812308] [2023-12-02 19:07:46,164 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1575812308] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:07:46,164 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 19:07:46,164 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 19:07:46,164 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1958415137] [2023-12-02 19:07:46,164 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:07:46,165 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 19:07:46,165 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 19:07:46,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 19:07:46,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 19:07:46,166 INFO L87 Difference]: Start difference. First operand 29864 states and 40124 transitions. Second operand has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 2 states have call successors, (65), 2 states have call predecessors, (65), 1 states have return successors, (61), 2 states have call predecessors, (61), 2 states have call successors, (61) [2023-12-02 19:07:48,413 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:07:55,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:07:55,880 INFO L93 Difference]: Finished difference Result 58647 states and 78774 transitions. [2023-12-02 19:07:55,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 19:07:55,881 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 2 states have call successors, (65), 2 states have call predecessors, (65), 1 states have return successors, (61), 2 states have call predecessors, (61), 2 states have call successors, (61) Word has length 435 [2023-12-02 19:07:55,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:07:55,959 INFO L225 Difference]: With dead ends: 58647 [2023-12-02 19:07:55,959 INFO L226 Difference]: Without dead ends: 29876 [2023-12-02 19:07:56,011 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 19:07:56,011 INFO L413 NwaCegarLoop]: 3336 mSDtfsCounter, 9 mSDsluCounter, 3329 mSDsCounter, 0 mSdLazyCounter, 733 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 6665 SdHoareTripleChecker+Invalid, 733 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 733 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2023-12-02 19:07:56,011 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 6665 Invalid, 733 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 733 Invalid, 0 Unknown, 0 Unchecked, 4.8s Time] [2023-12-02 19:07:56,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29876 states. [2023-12-02 19:08:01,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29876 to 29867. [2023-12-02 19:08:01,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29867 states, 17612 states have (on average 1.2593686123097887) internal successors, (22180), 18190 states have internal predecessors, (22180), 8661 states have call successors, (8661), 3590 states have call predecessors, (8661), 3585 states have return successors, (9287), 8464 states have call predecessors, (9287), 8657 states have call successors, (9287) [2023-12-02 19:08:01,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29867 states to 29867 states and 40128 transitions. [2023-12-02 19:08:01,275 INFO L78 Accepts]: Start accepts. Automaton has 29867 states and 40128 transitions. Word has length 435 [2023-12-02 19:08:01,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:08:01,275 INFO L495 AbstractCegarLoop]: Abstraction has 29867 states and 40128 transitions. [2023-12-02 19:08:01,275 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 2 states have call successors, (65), 2 states have call predecessors, (65), 1 states have return successors, (61), 2 states have call predecessors, (61), 2 states have call successors, (61) [2023-12-02 19:08:01,275 INFO L276 IsEmpty]: Start isEmpty. Operand 29867 states and 40128 transitions. [2023-12-02 19:08:01,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 324 [2023-12-02 19:08:01,286 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:08:01,286 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 9, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 19:08:01,286 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2023-12-02 19:08:01,287 INFO L420 AbstractCegarLoop]: === Iteration 46 === Targeting ldv_linux_usb_urb_usb_free_urbErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2023-12-02 19:08:01,287 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:08:01,287 INFO L85 PathProgramCache]: Analyzing trace with hash 210784433, now seen corresponding path program 1 times [2023-12-02 19:08:01,287 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:08:01,287 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1710856582] [2023-12-02 19:08:01,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:08:01,287 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:08:02,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:08:04,476 INFO L134 CoverageAnalysis]: Checked inductivity of 498 backedges. 6 proven. 18 refuted. 0 times theorem prover too weak. 474 trivial. 0 not checked. [2023-12-02 19:08:04,476 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:08:04,476 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1710856582] [2023-12-02 19:08:04,476 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1710856582] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 19:08:04,476 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1677991392] [2023-12-02 19:08:04,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:08:04,477 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 19:08:04,477 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af5414e3-0617-4494-a44b-8a9b2c022128/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 19:08:04,478 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af5414e3-0617-4494-a44b-8a9b2c022128/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 19:08:04,478 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af5414e3-0617-4494-a44b-8a9b2c022128/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-12-02 19:08:06,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:08:06,213 INFO L262 TraceCheckSpWp]: Trace formula consists of 5160 conjuncts, 40 conjunts are in the unsatisfiable core [2023-12-02 19:08:06,220 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 19:08:06,360 INFO L134 CoverageAnalysis]: Checked inductivity of 498 backedges. 150 proven. 0 refuted. 0 times theorem prover too weak. 348 trivial. 0 not checked. [2023-12-02 19:08:06,360 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 19:08:06,361 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1677991392] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:08:06,361 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-02 19:08:06,361 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [15] total 21 [2023-12-02 19:08:06,361 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1348730450] [2023-12-02 19:08:06,361 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:08:06,362 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-02 19:08:06,362 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 19:08:06,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-02 19:08:06,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=374, Unknown=0, NotChecked=0, Total=420 [2023-12-02 19:08:06,363 INFO L87 Difference]: Start difference. First operand 29867 states and 40128 transitions. Second operand has 12 states, 9 states have (on average 11.11111111111111) internal successors, (100), 11 states have internal predecessors, (100), 7 states have call successors, (56), 2 states have call predecessors, (56), 4 states have return successors, (54), 7 states have call predecessors, (54), 7 states have call successors, (54) [2023-12-02 19:08:14,668 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.57s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:08:16,326 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:08:18,554 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:08:25,526 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:08:27,342 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:08:28,871 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.53s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:08:30,425 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:08:33,700 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:08:34,793 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:08:36,229 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:08:43,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:08:43,053 INFO L93 Difference]: Finished difference Result 51748 states and 69100 transitions. [2023-12-02 19:08:43,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-02 19:08:43,053 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 9 states have (on average 11.11111111111111) internal successors, (100), 11 states have internal predecessors, (100), 7 states have call successors, (56), 2 states have call predecessors, (56), 4 states have return successors, (54), 7 states have call predecessors, (54), 7 states have call successors, (54) Word has length 323 [2023-12-02 19:08:43,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:08:43,121 INFO L225 Difference]: With dead ends: 51748 [2023-12-02 19:08:43,121 INFO L226 Difference]: Without dead ends: 26238 [2023-12-02 19:08:43,162 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 344 GetRequests, 318 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=86, Invalid=670, Unknown=0, NotChecked=0, Total=756 [2023-12-02 19:08:43,162 INFO L413 NwaCegarLoop]: 3301 mSDtfsCounter, 48 mSDsluCounter, 32879 mSDsCounter, 0 mSdLazyCounter, 4485 mSolverCounterSat, 53 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 31.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 36180 SdHoareTripleChecker+Invalid, 4539 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 4485 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 32.1s IncrementalHoareTripleChecker+Time [2023-12-02 19:08:43,162 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 36180 Invalid, 4539 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [53 Valid, 4485 Invalid, 1 Unknown, 0 Unchecked, 32.1s Time] [2023-12-02 19:08:43,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26238 states. [2023-12-02 19:08:47,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26238 to 26188. [2023-12-02 19:08:47,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26188 states, 15401 states have (on average 1.254269203298487) internal successors, (19317), 15911 states have internal predecessors, (19317), 7648 states have call successors, (7648), 3129 states have call predecessors, (7648), 3130 states have return successors, (8102), 7509 states have call predecessors, (8102), 7644 states have call successors, (8102) [2023-12-02 19:08:47,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26188 states to 26188 states and 35067 transitions. [2023-12-02 19:08:47,342 INFO L78 Accepts]: Start accepts. Automaton has 26188 states and 35067 transitions. Word has length 323 [2023-12-02 19:08:47,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:08:47,343 INFO L495 AbstractCegarLoop]: Abstraction has 26188 states and 35067 transitions. [2023-12-02 19:08:47,343 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 9 states have (on average 11.11111111111111) internal successors, (100), 11 states have internal predecessors, (100), 7 states have call successors, (56), 2 states have call predecessors, (56), 4 states have return successors, (54), 7 states have call predecessors, (54), 7 states have call successors, (54) [2023-12-02 19:08:47,343 INFO L276 IsEmpty]: Start isEmpty. Operand 26188 states and 35067 transitions. [2023-12-02 19:08:47,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 471 [2023-12-02 19:08:47,349 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:08:47,349 INFO L195 NwaCegarLoop]: trace histogram [22, 22, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 19:08:47,363 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af5414e3-0617-4494-a44b-8a9b2c022128/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-12-02 19:08:47,549 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af5414e3-0617-4494-a44b-8a9b2c022128/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable45 [2023-12-02 19:08:47,550 INFO L420 AbstractCegarLoop]: === Iteration 47 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2023-12-02 19:08:47,550 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:08:47,550 INFO L85 PathProgramCache]: Analyzing trace with hash 474854238, now seen corresponding path program 1 times [2023-12-02 19:08:47,550 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:08:47,550 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [657874376] [2023-12-02 19:08:47,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:08:47,550 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:08:47,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:08:48,379 INFO L134 CoverageAnalysis]: Checked inductivity of 955 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 944 trivial. 0 not checked. [2023-12-02 19:08:48,379 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:08:48,379 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [657874376] [2023-12-02 19:08:48,379 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [657874376] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:08:48,379 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 19:08:48,380 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-02 19:08:48,380 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1153335988] [2023-12-02 19:08:48,380 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:08:48,380 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-02 19:08:48,381 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 19:08:48,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-02 19:08:48,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-02 19:08:48,382 INFO L87 Difference]: Start difference. First operand 26188 states and 35067 transitions. Second operand has 6 states, 5 states have (on average 33.6) internal successors, (168), 5 states have internal predecessors, (168), 3 states have call successors, (88), 2 states have call predecessors, (88), 2 states have return successors, (73), 4 states have call predecessors, (73), 3 states have call successors, (73) [2023-12-02 19:09:02,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:09:02,369 INFO L93 Difference]: Finished difference Result 52291 states and 70416 transitions. [2023-12-02 19:09:02,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-02 19:09:02,370 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 33.6) internal successors, (168), 5 states have internal predecessors, (168), 3 states have call successors, (88), 2 states have call predecessors, (88), 2 states have return successors, (73), 4 states have call predecessors, (73), 3 states have call successors, (73) Word has length 470 [2023-12-02 19:09:02,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:09:02,429 INFO L225 Difference]: With dead ends: 52291 [2023-12-02 19:09:02,429 INFO L226 Difference]: Without dead ends: 26386 [2023-12-02 19:09:02,475 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-12-02 19:09:02,475 INFO L413 NwaCegarLoop]: 3332 mSDtfsCounter, 16 mSDsluCounter, 13302 mSDsCounter, 0 mSdLazyCounter, 1840 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 16634 SdHoareTripleChecker+Invalid, 1841 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1840 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.5s IncrementalHoareTripleChecker+Time [2023-12-02 19:09:02,475 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 16634 Invalid, 1841 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1840 Invalid, 0 Unknown, 0 Unchecked, 9.5s Time] [2023-12-02 19:09:02,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26386 states. [2023-12-02 19:09:07,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26386 to 26257. [2023-12-02 19:09:07,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26257 states, 15446 states have (on average 1.2539168716819888) internal successors, (19368), 15962 states have internal predecessors, (19368), 7657 states have call successors, (7657), 3129 states have call predecessors, (7657), 3145 states have return successors, (8140), 7536 states have call predecessors, (8140), 7653 states have call successors, (8140) [2023-12-02 19:09:07,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26257 states to 26257 states and 35165 transitions. [2023-12-02 19:09:07,428 INFO L78 Accepts]: Start accepts. Automaton has 26257 states and 35165 transitions. Word has length 470 [2023-12-02 19:09:07,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:09:07,428 INFO L495 AbstractCegarLoop]: Abstraction has 26257 states and 35165 transitions. [2023-12-02 19:09:07,429 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 33.6) internal successors, (168), 5 states have internal predecessors, (168), 3 states have call successors, (88), 2 states have call predecessors, (88), 2 states have return successors, (73), 4 states have call predecessors, (73), 3 states have call successors, (73) [2023-12-02 19:09:07,429 INFO L276 IsEmpty]: Start isEmpty. Operand 26257 states and 35165 transitions. [2023-12-02 19:09:07,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 518 [2023-12-02 19:09:07,435 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:09:07,435 INFO L195 NwaCegarLoop]: trace histogram [24, 24, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 19:09:07,435 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2023-12-02 19:09:07,435 INFO L420 AbstractCegarLoop]: === Iteration 48 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2023-12-02 19:09:07,435 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:09:07,436 INFO L85 PathProgramCache]: Analyzing trace with hash 1797597054, now seen corresponding path program 1 times [2023-12-02 19:09:07,436 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:09:07,436 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1968446412] [2023-12-02 19:09:07,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:09:07,436 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:09:07,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:09:08,366 INFO L134 CoverageAnalysis]: Checked inductivity of 1135 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 1121 trivial. 0 not checked. [2023-12-02 19:09:08,366 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:09:08,366 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1968446412] [2023-12-02 19:09:08,367 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1968446412] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:09:08,367 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 19:09:08,367 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-02 19:09:08,367 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [720069906] [2023-12-02 19:09:08,367 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:09:08,368 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-02 19:09:08,368 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 19:09:08,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-02 19:09:08,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-02 19:09:08,368 INFO L87 Difference]: Start difference. First operand 26257 states and 35165 transitions. Second operand has 6 states, 5 states have (on average 34.0) internal successors, (170), 5 states have internal predecessors, (170), 3 states have call successors, (93), 2 states have call predecessors, (93), 2 states have return successors, (81), 4 states have call predecessors, (81), 3 states have call successors, (81) [2023-12-02 19:09:17,249 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:09:24,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:09:24,558 INFO L93 Difference]: Finished difference Result 52385 states and 70537 transitions. [2023-12-02 19:09:24,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-02 19:09:24,558 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 34.0) internal successors, (170), 5 states have internal predecessors, (170), 3 states have call successors, (93), 2 states have call predecessors, (93), 2 states have return successors, (81), 4 states have call predecessors, (81), 3 states have call successors, (81) Word has length 517 [2023-12-02 19:09:24,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:09:24,623 INFO L225 Difference]: With dead ends: 52385 [2023-12-02 19:09:24,623 INFO L226 Difference]: Without dead ends: 26410 [2023-12-02 19:09:24,668 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-12-02 19:09:24,669 INFO L413 NwaCegarLoop]: 3335 mSDtfsCounter, 16 mSDsluCounter, 13302 mSDsCounter, 0 mSdLazyCounter, 1843 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 16637 SdHoareTripleChecker+Invalid, 1845 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1843 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.9s IncrementalHoareTripleChecker+Time [2023-12-02 19:09:24,669 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 16637 Invalid, 1845 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1843 Invalid, 0 Unknown, 0 Unchecked, 11.9s Time] [2023-12-02 19:09:24,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26410 states. [2023-12-02 19:09:28,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26410 to 26275. [2023-12-02 19:09:28,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26275 states, 15464 states have (on average 1.2536213140196586) internal successors, (19386), 15971 states have internal predecessors, (19386), 7657 states have call successors, (7657), 3129 states have call predecessors, (7657), 3145 states have return successors, (8140), 7545 states have call predecessors, (8140), 7653 states have call successors, (8140) [2023-12-02 19:09:29,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26275 states to 26275 states and 35183 transitions. [2023-12-02 19:09:29,049 INFO L78 Accepts]: Start accepts. Automaton has 26275 states and 35183 transitions. Word has length 517 [2023-12-02 19:09:29,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:09:29,050 INFO L495 AbstractCegarLoop]: Abstraction has 26275 states and 35183 transitions. [2023-12-02 19:09:29,050 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 34.0) internal successors, (170), 5 states have internal predecessors, (170), 3 states have call successors, (93), 2 states have call predecessors, (93), 2 states have return successors, (81), 4 states have call predecessors, (81), 3 states have call successors, (81) [2023-12-02 19:09:29,050 INFO L276 IsEmpty]: Start isEmpty. Operand 26275 states and 35183 transitions. [2023-12-02 19:09:29,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 416 [2023-12-02 19:09:29,056 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:09:29,056 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 19:09:29,056 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2023-12-02 19:09:29,056 INFO L420 AbstractCegarLoop]: === Iteration 49 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2023-12-02 19:09:29,056 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:09:29,057 INFO L85 PathProgramCache]: Analyzing trace with hash 1726230175, now seen corresponding path program 1 times [2023-12-02 19:09:29,057 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:09:29,057 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [383984144] [2023-12-02 19:09:29,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:09:29,057 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:09:29,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:09:29,729 INFO L134 CoverageAnalysis]: Checked inductivity of 783 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 775 trivial. 0 not checked. [2023-12-02 19:09:29,729 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:09:29,729 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [383984144] [2023-12-02 19:09:29,729 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [383984144] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:09:29,729 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 19:09:29,730 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-02 19:09:29,730 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1193725196] [2023-12-02 19:09:29,730 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:09:29,730 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-02 19:09:29,730 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 19:09:29,731 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-02 19:09:29,731 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-02 19:09:29,731 INFO L87 Difference]: Start difference. First operand 26275 states and 35183 transitions. Second operand has 6 states, 5 states have (on average 32.4) internal successors, (162), 5 states have internal predecessors, (162), 3 states have call successors, (76), 2 states have call predecessors, (76), 2 states have return successors, (62), 4 states have call predecessors, (62), 3 states have call successors, (62) [2023-12-02 19:09:44,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:09:44,429 INFO L93 Difference]: Finished difference Result 52486 states and 70673 transitions. [2023-12-02 19:09:44,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-02 19:09:44,429 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 32.4) internal successors, (162), 5 states have internal predecessors, (162), 3 states have call successors, (76), 2 states have call predecessors, (76), 2 states have return successors, (62), 4 states have call predecessors, (62), 3 states have call successors, (62) Word has length 415 [2023-12-02 19:09:44,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:09:44,499 INFO L225 Difference]: With dead ends: 52486 [2023-12-02 19:09:44,499 INFO L226 Difference]: Without dead ends: 26494 [2023-12-02 19:09:44,544 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-12-02 19:09:44,544 INFO L413 NwaCegarLoop]: 3331 mSDtfsCounter, 19 mSDsluCounter, 13288 mSDsCounter, 0 mSdLazyCounter, 1842 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 16619 SdHoareTripleChecker+Invalid, 1846 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1842 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.9s IncrementalHoareTripleChecker+Time [2023-12-02 19:09:44,544 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 16619 Invalid, 1846 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1842 Invalid, 0 Unknown, 0 Unchecked, 9.9s Time] [2023-12-02 19:09:44,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26494 states. [2023-12-02 19:09:48,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26494 to 26335. [2023-12-02 19:09:48,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26335 states, 15500 states have (on average 1.2530322580645161) internal successors, (19422), 16007 states have internal predecessors, (19422), 7669 states have call successors, (7669), 3129 states have call predecessors, (7669), 3157 states have return successors, (8164), 7581 states have call predecessors, (8164), 7665 states have call successors, (8164) [2023-12-02 19:09:48,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26335 states to 26335 states and 35255 transitions. [2023-12-02 19:09:48,967 INFO L78 Accepts]: Start accepts. Automaton has 26335 states and 35255 transitions. Word has length 415 [2023-12-02 19:09:48,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:09:48,968 INFO L495 AbstractCegarLoop]: Abstraction has 26335 states and 35255 transitions. [2023-12-02 19:09:48,968 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 32.4) internal successors, (162), 5 states have internal predecessors, (162), 3 states have call successors, (76), 2 states have call predecessors, (76), 2 states have return successors, (62), 4 states have call predecessors, (62), 3 states have call successors, (62) [2023-12-02 19:09:48,968 INFO L276 IsEmpty]: Start isEmpty. Operand 26335 states and 35255 transitions. [2023-12-02 19:09:48,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 455 [2023-12-02 19:09:48,975 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:09:48,975 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 19:09:48,975 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2023-12-02 19:09:48,975 INFO L420 AbstractCegarLoop]: === Iteration 50 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2023-12-02 19:09:48,976 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:09:48,976 INFO L85 PathProgramCache]: Analyzing trace with hash -391079061, now seen corresponding path program 1 times [2023-12-02 19:09:48,976 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:09:48,976 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [192970520] [2023-12-02 19:09:48,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:09:48,976 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:09:49,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:09:50,662 INFO L134 CoverageAnalysis]: Checked inductivity of 808 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 798 trivial. 0 not checked. [2023-12-02 19:09:50,662 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:09:50,662 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [192970520] [2023-12-02 19:09:50,663 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [192970520] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 19:09:50,663 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [227077910] [2023-12-02 19:09:50,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:09:50,663 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 19:09:50,663 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af5414e3-0617-4494-a44b-8a9b2c022128/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 19:09:50,664 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af5414e3-0617-4494-a44b-8a9b2c022128/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 19:09:50,665 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af5414e3-0617-4494-a44b-8a9b2c022128/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-12-02 19:09:52,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:09:52,785 INFO L262 TraceCheckSpWp]: Trace formula consists of 5953 conjuncts, 42 conjunts are in the unsatisfiable core [2023-12-02 19:09:52,796 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 19:09:52,953 INFO L134 CoverageAnalysis]: Checked inductivity of 808 backedges. 261 proven. 2 refuted. 0 times theorem prover too weak. 545 trivial. 0 not checked. [2023-12-02 19:09:52,953 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 19:09:53,517 INFO L134 CoverageAnalysis]: Checked inductivity of 808 backedges. 12 proven. 59 refuted. 0 times theorem prover too weak. 737 trivial. 0 not checked. [2023-12-02 19:09:53,518 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [227077910] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 19:09:53,518 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [920568775] [2023-12-02 19:09:53,547 INFO L159 IcfgInterpreter]: Started Sifa with 285 locations of interest [2023-12-02 19:09:53,547 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 19:09:53,552 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 19:09:53,557 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 19:09:53,557 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs