./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--usb--misc--uss720.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_901edc3c-7b54-4ce7-92a9-b90dad4ea131/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_901edc3c-7b54-4ce7-92a9-b90dad4ea131/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_901edc3c-7b54-4ce7-92a9-b90dad4ea131/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_901edc3c-7b54-4ce7-92a9-b90dad4ea131/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_901edc3c-7b54-4ce7-92a9-b90dad4ea131/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_901edc3c-7b54-4ce7-92a9-b90dad4ea131/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 87fc46113f1aa6bf5cd254bff58332904e2431653df647e3a9a61cd4104d8890 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 14:57:58,737 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 14:57:58,801 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_901edc3c-7b54-4ce7-92a9-b90dad4ea131/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-12-02 14:57:58,805 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 14:57:58,806 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 14:57:58,830 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 14:57:58,831 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 14:57:58,831 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 14:57:58,832 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 14:57:58,833 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 14:57:58,833 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 14:57:58,834 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 14:57:58,834 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 14:57:58,835 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-12-02 14:57:58,835 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 14:57:58,836 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 14:57:58,836 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-12-02 14:57:58,837 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-12-02 14:57:58,837 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 14:57:58,838 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-12-02 14:57:58,838 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-12-02 14:57:58,839 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-12-02 14:57:58,840 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 14:57:58,840 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 14:57:58,841 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 14:57:58,841 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 14:57:58,841 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 14:57:58,842 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 14:57:58,842 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 14:57:58,842 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 14:57:58,843 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 14:57:58,843 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 14:57:58,844 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 14:57:58,844 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 14:57:58,844 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 14:57:58,845 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 14:57:58,845 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 14:57:58,845 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 14:57:58,845 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-12-02 14:57:58,845 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 14:57:58,846 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 14:57:58,846 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 14:57:58,846 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 14:57:58,846 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 14:57:58,846 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_901edc3c-7b54-4ce7-92a9-b90dad4ea131/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_901edc3c-7b54-4ce7-92a9-b90dad4ea131/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 87fc46113f1aa6bf5cd254bff58332904e2431653df647e3a9a61cd4104d8890 [2023-12-02 14:57:59,067 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 14:57:59,087 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 14:57:59,089 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 14:57:59,090 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 14:57:59,091 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 14:57:59,092 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_901edc3c-7b54-4ce7-92a9-b90dad4ea131/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i [2023-12-02 14:58:01,796 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 14:58:02,195 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 14:58:02,196 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_901edc3c-7b54-4ce7-92a9-b90dad4ea131/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i [2023-12-02 14:58:02,228 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_901edc3c-7b54-4ce7-92a9-b90dad4ea131/bin/utaipan-verify-nQ1chXbOIh/data/a41939a54/76828d41475f4f598547f8c4592b11c8/FLAG738c828a1 [2023-12-02 14:58:02,240 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_901edc3c-7b54-4ce7-92a9-b90dad4ea131/bin/utaipan-verify-nQ1chXbOIh/data/a41939a54/76828d41475f4f598547f8c4592b11c8 [2023-12-02 14:58:02,242 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 14:58:02,243 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 14:58:02,244 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 14:58:02,244 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 14:58:02,248 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 14:58:02,249 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 02:58:02" (1/1) ... [2023-12-02 14:58:02,250 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@169a4dd6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:58:02, skipping insertion in model container [2023-12-02 14:58:02,250 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 02:58:02" (1/1) ... [2023-12-02 14:58:02,376 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 14:58:04,612 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_901edc3c-7b54-4ce7-92a9-b90dad4ea131/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[287816,287829] [2023-12-02 14:58:04,616 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_901edc3c-7b54-4ce7-92a9-b90dad4ea131/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[287961,287974] [2023-12-02 14:58:04,616 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_901edc3c-7b54-4ce7-92a9-b90dad4ea131/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[288107,288120] [2023-12-02 14:58:04,617 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_901edc3c-7b54-4ce7-92a9-b90dad4ea131/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[288272,288285] [2023-12-02 14:58:04,617 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_901edc3c-7b54-4ce7-92a9-b90dad4ea131/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[288430,288443] [2023-12-02 14:58:04,618 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_901edc3c-7b54-4ce7-92a9-b90dad4ea131/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[288588,288601] [2023-12-02 14:58:04,618 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_901edc3c-7b54-4ce7-92a9-b90dad4ea131/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[288746,288759] [2023-12-02 14:58:04,619 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_901edc3c-7b54-4ce7-92a9-b90dad4ea131/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[288906,288919] [2023-12-02 14:58:04,619 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_901edc3c-7b54-4ce7-92a9-b90dad4ea131/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[289065,289078] [2023-12-02 14:58:04,620 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_901edc3c-7b54-4ce7-92a9-b90dad4ea131/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[289204,289217] [2023-12-02 14:58:04,620 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_901edc3c-7b54-4ce7-92a9-b90dad4ea131/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[289346,289359] [2023-12-02 14:58:04,621 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_901edc3c-7b54-4ce7-92a9-b90dad4ea131/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[289495,289508] [2023-12-02 14:58:04,621 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_901edc3c-7b54-4ce7-92a9-b90dad4ea131/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[289634,289647] [2023-12-02 14:58:04,622 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_901edc3c-7b54-4ce7-92a9-b90dad4ea131/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[289789,289802] [2023-12-02 14:58:04,623 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_901edc3c-7b54-4ce7-92a9-b90dad4ea131/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[289949,289962] [2023-12-02 14:58:04,623 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_901edc3c-7b54-4ce7-92a9-b90dad4ea131/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[290100,290113] [2023-12-02 14:58:04,624 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_901edc3c-7b54-4ce7-92a9-b90dad4ea131/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[290251,290264] [2023-12-02 14:58:04,624 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_901edc3c-7b54-4ce7-92a9-b90dad4ea131/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[290403,290416] [2023-12-02 14:58:04,625 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_901edc3c-7b54-4ce7-92a9-b90dad4ea131/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[290552,290565] [2023-12-02 14:58:04,626 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_901edc3c-7b54-4ce7-92a9-b90dad4ea131/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[290700,290713] [2023-12-02 14:58:04,626 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_901edc3c-7b54-4ce7-92a9-b90dad4ea131/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[290857,290870] [2023-12-02 14:58:04,627 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_901edc3c-7b54-4ce7-92a9-b90dad4ea131/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[291006,291019] [2023-12-02 14:58:04,627 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_901edc3c-7b54-4ce7-92a9-b90dad4ea131/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[291162,291175] [2023-12-02 14:58:04,628 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_901edc3c-7b54-4ce7-92a9-b90dad4ea131/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[291315,291328] [2023-12-02 14:58:04,628 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_901edc3c-7b54-4ce7-92a9-b90dad4ea131/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[291461,291474] [2023-12-02 14:58:04,629 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_901edc3c-7b54-4ce7-92a9-b90dad4ea131/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[291604,291617] [2023-12-02 14:58:04,630 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_901edc3c-7b54-4ce7-92a9-b90dad4ea131/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[291756,291769] [2023-12-02 14:58:04,630 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_901edc3c-7b54-4ce7-92a9-b90dad4ea131/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[291902,291915] [2023-12-02 14:58:04,631 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_901edc3c-7b54-4ce7-92a9-b90dad4ea131/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[292047,292060] [2023-12-02 14:58:04,631 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_901edc3c-7b54-4ce7-92a9-b90dad4ea131/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[292201,292214] [2023-12-02 14:58:04,632 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_901edc3c-7b54-4ce7-92a9-b90dad4ea131/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[292352,292365] [2023-12-02 14:58:04,633 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_901edc3c-7b54-4ce7-92a9-b90dad4ea131/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[292507,292520] [2023-12-02 14:58:04,634 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_901edc3c-7b54-4ce7-92a9-b90dad4ea131/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[292659,292672] [2023-12-02 14:58:04,634 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_901edc3c-7b54-4ce7-92a9-b90dad4ea131/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[292814,292827] [2023-12-02 14:58:04,635 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_901edc3c-7b54-4ce7-92a9-b90dad4ea131/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[292978,292991] [2023-12-02 14:58:04,635 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_901edc3c-7b54-4ce7-92a9-b90dad4ea131/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[293134,293147] [2023-12-02 14:58:04,636 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_901edc3c-7b54-4ce7-92a9-b90dad4ea131/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[293298,293311] [2023-12-02 14:58:04,637 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_901edc3c-7b54-4ce7-92a9-b90dad4ea131/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[293440,293453] [2023-12-02 14:58:04,637 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_901edc3c-7b54-4ce7-92a9-b90dad4ea131/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[293598,293611] [2023-12-02 14:58:04,638 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_901edc3c-7b54-4ce7-92a9-b90dad4ea131/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[293765,293778] [2023-12-02 14:58:04,638 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_901edc3c-7b54-4ce7-92a9-b90dad4ea131/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[293924,293937] [2023-12-02 14:58:04,639 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_901edc3c-7b54-4ce7-92a9-b90dad4ea131/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[294083,294096] [2023-12-02 14:58:04,640 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_901edc3c-7b54-4ce7-92a9-b90dad4ea131/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[294232,294245] [2023-12-02 14:58:04,640 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_901edc3c-7b54-4ce7-92a9-b90dad4ea131/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[294379,294392] [2023-12-02 14:58:04,641 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_901edc3c-7b54-4ce7-92a9-b90dad4ea131/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[294518,294531] [2023-12-02 14:58:04,641 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_901edc3c-7b54-4ce7-92a9-b90dad4ea131/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[294681,294694] [2023-12-02 14:58:04,642 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_901edc3c-7b54-4ce7-92a9-b90dad4ea131/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[294847,294860] [2023-12-02 14:58:04,643 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_901edc3c-7b54-4ce7-92a9-b90dad4ea131/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[295011,295024] [2023-12-02 14:58:04,643 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_901edc3c-7b54-4ce7-92a9-b90dad4ea131/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[295176,295189] [2023-12-02 14:58:04,644 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_901edc3c-7b54-4ce7-92a9-b90dad4ea131/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[295341,295354] [2023-12-02 14:58:04,644 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_901edc3c-7b54-4ce7-92a9-b90dad4ea131/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[295507,295520] [2023-12-02 14:58:04,645 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_901edc3c-7b54-4ce7-92a9-b90dad4ea131/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[295672,295685] [2023-12-02 14:58:04,646 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_901edc3c-7b54-4ce7-92a9-b90dad4ea131/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[295839,295852] [2023-12-02 14:58:04,646 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_901edc3c-7b54-4ce7-92a9-b90dad4ea131/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[295999,296012] [2023-12-02 14:58:04,647 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_901edc3c-7b54-4ce7-92a9-b90dad4ea131/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[296161,296174] [2023-12-02 14:58:04,647 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_901edc3c-7b54-4ce7-92a9-b90dad4ea131/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[296320,296333] [2023-12-02 14:58:04,648 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_901edc3c-7b54-4ce7-92a9-b90dad4ea131/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[296466,296479] [2023-12-02 14:58:04,649 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_901edc3c-7b54-4ce7-92a9-b90dad4ea131/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[296609,296622] [2023-12-02 14:58:04,649 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_901edc3c-7b54-4ce7-92a9-b90dad4ea131/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[296753,296766] [2023-12-02 14:58:04,650 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_901edc3c-7b54-4ce7-92a9-b90dad4ea131/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[296896,296909] [2023-12-02 14:58:04,651 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_901edc3c-7b54-4ce7-92a9-b90dad4ea131/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[297040,297053] [2023-12-02 14:58:04,651 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_901edc3c-7b54-4ce7-92a9-b90dad4ea131/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[297181,297194] [2023-12-02 14:58:04,652 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_901edc3c-7b54-4ce7-92a9-b90dad4ea131/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[297319,297332] [2023-12-02 14:58:04,652 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_901edc3c-7b54-4ce7-92a9-b90dad4ea131/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[297477,297490] [2023-12-02 14:58:04,653 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_901edc3c-7b54-4ce7-92a9-b90dad4ea131/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[297636,297649] [2023-12-02 14:58:04,654 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_901edc3c-7b54-4ce7-92a9-b90dad4ea131/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[297792,297805] [2023-12-02 14:58:04,654 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_901edc3c-7b54-4ce7-92a9-b90dad4ea131/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[297941,297954] [2023-12-02 14:58:04,655 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_901edc3c-7b54-4ce7-92a9-b90dad4ea131/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[298093,298106] [2023-12-02 14:58:04,655 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_901edc3c-7b54-4ce7-92a9-b90dad4ea131/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[298244,298257] [2023-12-02 14:58:04,655 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_901edc3c-7b54-4ce7-92a9-b90dad4ea131/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[298393,298406] [2023-12-02 14:58:04,656 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_901edc3c-7b54-4ce7-92a9-b90dad4ea131/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[298545,298558] [2023-12-02 14:58:04,656 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_901edc3c-7b54-4ce7-92a9-b90dad4ea131/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[298693,298706] [2023-12-02 14:58:04,657 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_901edc3c-7b54-4ce7-92a9-b90dad4ea131/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[298846,298859] [2023-12-02 14:58:04,657 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_901edc3c-7b54-4ce7-92a9-b90dad4ea131/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[298997,299010] [2023-12-02 14:58:04,657 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_901edc3c-7b54-4ce7-92a9-b90dad4ea131/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[299147,299160] [2023-12-02 14:58:04,658 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_901edc3c-7b54-4ce7-92a9-b90dad4ea131/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[299294,299307] [2023-12-02 14:58:04,658 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_901edc3c-7b54-4ce7-92a9-b90dad4ea131/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[299445,299458] [2023-12-02 14:58:04,659 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_901edc3c-7b54-4ce7-92a9-b90dad4ea131/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[299596,299609] [2023-12-02 14:58:04,659 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_901edc3c-7b54-4ce7-92a9-b90dad4ea131/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[299744,299757] [2023-12-02 14:58:04,660 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_901edc3c-7b54-4ce7-92a9-b90dad4ea131/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[299910,299923] [2023-12-02 14:58:04,660 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_901edc3c-7b54-4ce7-92a9-b90dad4ea131/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[300079,300092] [2023-12-02 14:58:04,661 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_901edc3c-7b54-4ce7-92a9-b90dad4ea131/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[300246,300259] [2023-12-02 14:58:04,661 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_901edc3c-7b54-4ce7-92a9-b90dad4ea131/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[300414,300427] [2023-12-02 14:58:04,662 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_901edc3c-7b54-4ce7-92a9-b90dad4ea131/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[300564,300577] [2023-12-02 14:58:04,662 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_901edc3c-7b54-4ce7-92a9-b90dad4ea131/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[300711,300724] [2023-12-02 14:58:04,662 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_901edc3c-7b54-4ce7-92a9-b90dad4ea131/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[300872,300885] [2023-12-02 14:58:04,663 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_901edc3c-7b54-4ce7-92a9-b90dad4ea131/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[301042,301055] [2023-12-02 14:58:04,663 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_901edc3c-7b54-4ce7-92a9-b90dad4ea131/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[301204,301217] [2023-12-02 14:58:04,666 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 14:58:04,695 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 14:58:04,771 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)); [4326-4327] [2023-12-02 14:58:04,773 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movb %%gs:%P1,%0": "=q" (pfo_ret__): "p" (& current_task)); [4388] [2023-12-02 14:58:04,773 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movw %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [4391] [2023-12-02 14:58:04,773 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movl %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [4394] [2023-12-02 14:58:04,774 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movq %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [4397] [2023-12-02 14:58:04,916 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_901edc3c-7b54-4ce7-92a9-b90dad4ea131/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[287816,287829] [2023-12-02 14:58:04,916 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_901edc3c-7b54-4ce7-92a9-b90dad4ea131/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[287961,287974] [2023-12-02 14:58:04,917 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_901edc3c-7b54-4ce7-92a9-b90dad4ea131/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[288107,288120] [2023-12-02 14:58:04,917 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_901edc3c-7b54-4ce7-92a9-b90dad4ea131/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[288272,288285] [2023-12-02 14:58:04,918 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_901edc3c-7b54-4ce7-92a9-b90dad4ea131/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[288430,288443] [2023-12-02 14:58:04,918 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_901edc3c-7b54-4ce7-92a9-b90dad4ea131/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[288588,288601] [2023-12-02 14:58:04,918 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_901edc3c-7b54-4ce7-92a9-b90dad4ea131/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[288746,288759] [2023-12-02 14:58:04,919 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_901edc3c-7b54-4ce7-92a9-b90dad4ea131/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[288906,288919] [2023-12-02 14:58:04,919 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_901edc3c-7b54-4ce7-92a9-b90dad4ea131/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[289065,289078] [2023-12-02 14:58:04,920 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_901edc3c-7b54-4ce7-92a9-b90dad4ea131/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[289204,289217] [2023-12-02 14:58:04,920 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_901edc3c-7b54-4ce7-92a9-b90dad4ea131/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[289346,289359] [2023-12-02 14:58:04,921 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_901edc3c-7b54-4ce7-92a9-b90dad4ea131/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[289495,289508] [2023-12-02 14:58:04,921 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_901edc3c-7b54-4ce7-92a9-b90dad4ea131/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[289634,289647] [2023-12-02 14:58:04,921 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_901edc3c-7b54-4ce7-92a9-b90dad4ea131/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[289789,289802] [2023-12-02 14:58:04,922 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_901edc3c-7b54-4ce7-92a9-b90dad4ea131/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[289949,289962] [2023-12-02 14:58:04,922 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_901edc3c-7b54-4ce7-92a9-b90dad4ea131/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[290100,290113] [2023-12-02 14:58:04,922 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_901edc3c-7b54-4ce7-92a9-b90dad4ea131/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[290251,290264] [2023-12-02 14:58:04,923 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_901edc3c-7b54-4ce7-92a9-b90dad4ea131/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[290403,290416] [2023-12-02 14:58:04,923 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_901edc3c-7b54-4ce7-92a9-b90dad4ea131/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[290552,290565] [2023-12-02 14:58:04,923 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_901edc3c-7b54-4ce7-92a9-b90dad4ea131/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[290700,290713] [2023-12-02 14:58:04,924 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_901edc3c-7b54-4ce7-92a9-b90dad4ea131/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[290857,290870] [2023-12-02 14:58:04,924 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_901edc3c-7b54-4ce7-92a9-b90dad4ea131/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[291006,291019] [2023-12-02 14:58:04,925 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_901edc3c-7b54-4ce7-92a9-b90dad4ea131/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[291162,291175] [2023-12-02 14:58:04,925 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_901edc3c-7b54-4ce7-92a9-b90dad4ea131/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[291315,291328] [2023-12-02 14:58:04,925 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_901edc3c-7b54-4ce7-92a9-b90dad4ea131/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[291461,291474] [2023-12-02 14:58:04,926 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_901edc3c-7b54-4ce7-92a9-b90dad4ea131/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[291604,291617] [2023-12-02 14:58:04,926 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_901edc3c-7b54-4ce7-92a9-b90dad4ea131/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[291756,291769] [2023-12-02 14:58:04,927 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_901edc3c-7b54-4ce7-92a9-b90dad4ea131/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[291902,291915] [2023-12-02 14:58:04,927 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_901edc3c-7b54-4ce7-92a9-b90dad4ea131/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[292047,292060] [2023-12-02 14:58:04,927 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_901edc3c-7b54-4ce7-92a9-b90dad4ea131/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[292201,292214] [2023-12-02 14:58:04,928 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_901edc3c-7b54-4ce7-92a9-b90dad4ea131/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[292352,292365] [2023-12-02 14:58:04,928 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_901edc3c-7b54-4ce7-92a9-b90dad4ea131/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[292507,292520] [2023-12-02 14:58:04,928 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_901edc3c-7b54-4ce7-92a9-b90dad4ea131/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[292659,292672] [2023-12-02 14:58:04,929 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_901edc3c-7b54-4ce7-92a9-b90dad4ea131/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[292814,292827] [2023-12-02 14:58:04,929 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_901edc3c-7b54-4ce7-92a9-b90dad4ea131/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[292978,292991] [2023-12-02 14:58:04,930 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_901edc3c-7b54-4ce7-92a9-b90dad4ea131/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[293134,293147] [2023-12-02 14:58:04,930 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_901edc3c-7b54-4ce7-92a9-b90dad4ea131/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[293298,293311] [2023-12-02 14:58:04,930 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_901edc3c-7b54-4ce7-92a9-b90dad4ea131/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[293440,293453] [2023-12-02 14:58:04,931 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_901edc3c-7b54-4ce7-92a9-b90dad4ea131/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[293598,293611] [2023-12-02 14:58:04,931 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_901edc3c-7b54-4ce7-92a9-b90dad4ea131/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[293765,293778] [2023-12-02 14:58:04,932 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_901edc3c-7b54-4ce7-92a9-b90dad4ea131/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[293924,293937] [2023-12-02 14:58:04,932 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_901edc3c-7b54-4ce7-92a9-b90dad4ea131/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[294083,294096] [2023-12-02 14:58:04,932 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_901edc3c-7b54-4ce7-92a9-b90dad4ea131/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[294232,294245] [2023-12-02 14:58:04,933 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_901edc3c-7b54-4ce7-92a9-b90dad4ea131/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[294379,294392] [2023-12-02 14:58:04,933 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_901edc3c-7b54-4ce7-92a9-b90dad4ea131/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[294518,294531] [2023-12-02 14:58:04,933 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_901edc3c-7b54-4ce7-92a9-b90dad4ea131/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[294681,294694] [2023-12-02 14:58:04,934 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_901edc3c-7b54-4ce7-92a9-b90dad4ea131/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[294847,294860] [2023-12-02 14:58:04,934 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_901edc3c-7b54-4ce7-92a9-b90dad4ea131/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[295011,295024] [2023-12-02 14:58:04,934 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_901edc3c-7b54-4ce7-92a9-b90dad4ea131/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[295176,295189] [2023-12-02 14:58:04,935 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_901edc3c-7b54-4ce7-92a9-b90dad4ea131/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[295341,295354] [2023-12-02 14:58:04,935 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_901edc3c-7b54-4ce7-92a9-b90dad4ea131/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[295507,295520] [2023-12-02 14:58:04,936 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_901edc3c-7b54-4ce7-92a9-b90dad4ea131/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[295672,295685] [2023-12-02 14:58:04,936 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_901edc3c-7b54-4ce7-92a9-b90dad4ea131/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[295839,295852] [2023-12-02 14:58:04,936 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_901edc3c-7b54-4ce7-92a9-b90dad4ea131/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[295999,296012] [2023-12-02 14:58:04,937 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_901edc3c-7b54-4ce7-92a9-b90dad4ea131/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[296161,296174] [2023-12-02 14:58:04,937 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_901edc3c-7b54-4ce7-92a9-b90dad4ea131/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[296320,296333] [2023-12-02 14:58:04,937 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_901edc3c-7b54-4ce7-92a9-b90dad4ea131/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[296466,296479] [2023-12-02 14:58:04,938 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_901edc3c-7b54-4ce7-92a9-b90dad4ea131/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[296609,296622] [2023-12-02 14:58:04,938 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_901edc3c-7b54-4ce7-92a9-b90dad4ea131/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[296753,296766] [2023-12-02 14:58:04,939 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_901edc3c-7b54-4ce7-92a9-b90dad4ea131/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[296896,296909] [2023-12-02 14:58:04,939 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_901edc3c-7b54-4ce7-92a9-b90dad4ea131/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[297040,297053] [2023-12-02 14:58:04,939 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_901edc3c-7b54-4ce7-92a9-b90dad4ea131/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[297181,297194] [2023-12-02 14:58:04,940 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_901edc3c-7b54-4ce7-92a9-b90dad4ea131/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[297319,297332] [2023-12-02 14:58:04,940 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_901edc3c-7b54-4ce7-92a9-b90dad4ea131/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[297477,297490] [2023-12-02 14:58:04,941 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_901edc3c-7b54-4ce7-92a9-b90dad4ea131/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[297636,297649] [2023-12-02 14:58:04,941 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_901edc3c-7b54-4ce7-92a9-b90dad4ea131/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[297792,297805] [2023-12-02 14:58:04,941 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_901edc3c-7b54-4ce7-92a9-b90dad4ea131/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[297941,297954] [2023-12-02 14:58:04,942 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_901edc3c-7b54-4ce7-92a9-b90dad4ea131/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[298093,298106] [2023-12-02 14:58:04,942 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_901edc3c-7b54-4ce7-92a9-b90dad4ea131/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[298244,298257] [2023-12-02 14:58:04,942 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_901edc3c-7b54-4ce7-92a9-b90dad4ea131/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[298393,298406] [2023-12-02 14:58:04,943 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_901edc3c-7b54-4ce7-92a9-b90dad4ea131/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[298545,298558] [2023-12-02 14:58:04,943 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_901edc3c-7b54-4ce7-92a9-b90dad4ea131/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[298693,298706] [2023-12-02 14:58:04,943 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_901edc3c-7b54-4ce7-92a9-b90dad4ea131/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[298846,298859] [2023-12-02 14:58:04,944 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_901edc3c-7b54-4ce7-92a9-b90dad4ea131/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[298997,299010] [2023-12-02 14:58:04,944 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_901edc3c-7b54-4ce7-92a9-b90dad4ea131/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[299147,299160] [2023-12-02 14:58:04,945 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_901edc3c-7b54-4ce7-92a9-b90dad4ea131/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[299294,299307] [2023-12-02 14:58:04,945 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_901edc3c-7b54-4ce7-92a9-b90dad4ea131/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[299445,299458] [2023-12-02 14:58:04,945 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_901edc3c-7b54-4ce7-92a9-b90dad4ea131/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[299596,299609] [2023-12-02 14:58:04,946 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_901edc3c-7b54-4ce7-92a9-b90dad4ea131/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[299744,299757] [2023-12-02 14:58:04,946 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_901edc3c-7b54-4ce7-92a9-b90dad4ea131/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[299910,299923] [2023-12-02 14:58:04,946 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_901edc3c-7b54-4ce7-92a9-b90dad4ea131/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[300079,300092] [2023-12-02 14:58:04,947 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_901edc3c-7b54-4ce7-92a9-b90dad4ea131/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[300246,300259] [2023-12-02 14:58:04,947 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_901edc3c-7b54-4ce7-92a9-b90dad4ea131/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[300414,300427] [2023-12-02 14:58:04,947 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_901edc3c-7b54-4ce7-92a9-b90dad4ea131/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[300564,300577] [2023-12-02 14:58:04,948 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_901edc3c-7b54-4ce7-92a9-b90dad4ea131/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[300711,300724] [2023-12-02 14:58:04,948 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_901edc3c-7b54-4ce7-92a9-b90dad4ea131/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[300872,300885] [2023-12-02 14:58:04,949 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_901edc3c-7b54-4ce7-92a9-b90dad4ea131/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[301042,301055] [2023-12-02 14:58:04,949 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_901edc3c-7b54-4ce7-92a9-b90dad4ea131/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i[301204,301217] [2023-12-02 14:58:04,951 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 14:58:05,132 WARN L675 CHandler]: The function __bad_percpu_size is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 14:58:05,140 INFO L206 MainTranslator]: Completed translation [2023-12-02 14:58:05,140 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:58:05 WrapperNode [2023-12-02 14:58:05,140 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 14:58:05,141 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 14:58:05,141 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 14:58:05,142 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 14:58:05,149 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:58:05" (1/1) ... [2023-12-02 14:58:05,219 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:58:05" (1/1) ... [2023-12-02 14:58:05,374 INFO L138 Inliner]: procedures = 516, calls = 1404, calls flagged for inlining = 239, calls inlined = 169, statements flattened = 3307 [2023-12-02 14:58:05,374 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 14:58:05,375 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 14:58:05,375 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 14:58:05,375 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 14:58:05,385 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:58:05" (1/1) ... [2023-12-02 14:58:05,385 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:58:05" (1/1) ... [2023-12-02 14:58:05,405 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:58:05" (1/1) ... [2023-12-02 14:58:05,405 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:58:05" (1/1) ... [2023-12-02 14:58:05,470 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:58:05" (1/1) ... [2023-12-02 14:58:05,485 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:58:05" (1/1) ... [2023-12-02 14:58:05,506 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:58:05" (1/1) ... [2023-12-02 14:58:05,517 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:58:05" (1/1) ... [2023-12-02 14:58:05,541 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 14:58:05,542 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 14:58:05,542 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 14:58:05,542 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 14:58:05,543 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:58:05" (1/1) ... [2023-12-02 14:58:05,548 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 14:58:05,559 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_901edc3c-7b54-4ce7-92a9-b90dad4ea131/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 14:58:05,570 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_901edc3c-7b54-4ce7-92a9-b90dad4ea131/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 14:58:05,572 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_901edc3c-7b54-4ce7-92a9-b90dad4ea131/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 14:58:05,602 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_97 [2023-12-02 14:58:05,603 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_97 [2023-12-02 14:58:05,603 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_coherent_check_final_state [2023-12-02 14:58:05,603 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_coherent_check_final_state [2023-12-02 14:58:05,603 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2023-12-02 14:58:05,603 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2023-12-02 14:58:05,603 INFO L130 BoogieDeclarations]: Found specification of procedure parport_uss720_disable_irq [2023-12-02 14:58:05,604 INFO L138 BoogieDeclarations]: Found implementation of procedure parport_uss720_disable_irq [2023-12-02 14:58:05,604 INFO L130 BoogieDeclarations]: Found specification of procedure destroy_async [2023-12-02 14:58:05,604 INFO L138 BoogieDeclarations]: Found implementation of procedure destroy_async [2023-12-02 14:58:05,604 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-12-02 14:58:05,604 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-12-02 14:58:05,604 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_mmc_sdio_func_check_final_state [2023-12-02 14:58:05,604 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_mmc_sdio_func_check_final_state [2023-12-02 14:58:05,605 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2023-12-02 14:58:05,605 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2023-12-02 14:58:05,605 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_arch_io_check_final_state [2023-12-02 14:58:05,605 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_arch_io_check_final_state [2023-12-02 14:58:05,605 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_module_check_final_state [2023-12-02 14:58:05,605 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_module_check_final_state [2023-12-02 14:58:05,605 INFO L130 BoogieDeclarations]: Found specification of procedure parport_uss720_read_status [2023-12-02 14:58:05,605 INFO L138 BoogieDeclarations]: Found implementation of procedure parport_uss720_read_status [2023-12-02 14:58:05,605 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2023-12-02 14:58:05,605 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2023-12-02 14:58:05,606 INFO L130 BoogieDeclarations]: Found specification of procedure parport_uss720_read_data [2023-12-02 14:58:05,606 INFO L138 BoogieDeclarations]: Found implementation of procedure parport_uss720_read_data [2023-12-02 14:58:05,606 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2023-12-02 14:58:05,606 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2023-12-02 14:58:05,606 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_queue_check_final_state [2023-12-02 14:58:05,606 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_queue_check_final_state [2023-12-02 14:58:05,606 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-02 14:58:05,606 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_request_check_final_state [2023-12-02 14:58:05,606 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_request_check_final_state [2023-12-02 14:58:05,607 INFO L130 BoogieDeclarations]: Found specification of procedure parport_uss720_data_reverse [2023-12-02 14:58:05,607 INFO L138 BoogieDeclarations]: Found implementation of procedure parport_uss720_data_reverse [2023-12-02 14:58:05,607 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-12-02 14:58:05,607 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-12-02 14:58:05,607 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_in_interrupt_context [2023-12-02 14:58:05,607 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_in_interrupt_context [2023-12-02 14:58:05,607 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2023-12-02 14:58:05,607 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2023-12-02 14:58:05,607 INFO L130 BoogieDeclarations]: Found specification of procedure kref_get [2023-12-02 14:58:05,608 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_get [2023-12-02 14:58:05,608 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_bh_check_final_state [2023-12-02 14:58:05,608 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_bh_check_final_state [2023-12-02 14:58:05,608 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-12-02 14:58:05,608 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_genhd_check_final_state [2023-12-02 14:58:05,608 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_genhd_check_final_state [2023-12-02 14:58:05,609 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_after_alloc [2023-12-02 14:58:05,609 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_after_alloc [2023-12-02 14:58:05,609 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_register_reset_error_counter [2023-12-02 14:58:05,609 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_register_reset_error_counter [2023-12-02 14:58:05,609 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2023-12-02 14:58:05,609 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2023-12-02 14:58:05,609 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_lib_idr_check_final_state [2023-12-02 14:58:05,609 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_lib_idr_check_final_state [2023-12-02 14:58:05,609 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_dev_dbg [2023-12-02 14:58:05,610 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_dev_dbg [2023-12-02 14:58:05,610 INFO L130 BoogieDeclarations]: Found specification of procedure submit_async_request [2023-12-02 14:58:05,610 INFO L138 BoogieDeclarations]: Found implementation of procedure submit_async_request [2023-12-02 14:58:05,610 INFO L130 BoogieDeclarations]: Found specification of procedure kref_put [2023-12-02 14:58:05,610 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_put [2023-12-02 14:58:05,610 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_srcu_check_final_state [2023-12-02 14:58:05,610 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_srcu_check_final_state [2023-12-02 14:58:05,610 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-12-02 14:58:05,610 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 14:58:05,610 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2023-12-02 14:58:05,610 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2023-12-02 14:58:05,611 INFO L130 BoogieDeclarations]: Found specification of procedure change_mode [2023-12-02 14:58:05,611 INFO L138 BoogieDeclarations]: Found implementation of procedure change_mode [2023-12-02 14:58:05,611 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-12-02 14:58:05,611 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2023-12-02 14:58:05,611 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2023-12-02 14:58:05,611 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2023-12-02 14:58:05,611 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2023-12-02 14:58:05,611 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2023-12-02 14:58:05,611 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_dev_usb_put_dev [2023-12-02 14:58:05,612 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_dev_usb_put_dev [2023-12-02 14:58:05,612 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_alloc_irq_check_alloc_flags [2023-12-02 14:58:05,612 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_alloc_irq_check_alloc_flags [2023-12-02 14:58:05,612 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2023-12-02 14:58:05,612 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2023-12-02 14:58:05,612 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_register_reset_error_counter [2023-12-02 14:58:05,612 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_register_reset_error_counter [2023-12-02 14:58:05,612 INFO L130 BoogieDeclarations]: Found specification of procedure parport_generic_irq [2023-12-02 14:58:05,612 INFO L138 BoogieDeclarations]: Found implementation of procedure parport_generic_irq [2023-12-02 14:58:05,612 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 14:58:05,613 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 14:58:05,613 INFO L130 BoogieDeclarations]: Found specification of procedure get_1284_register [2023-12-02 14:58:05,613 INFO L138 BoogieDeclarations]: Found implementation of procedure get_1284_register [2023-12-02 14:58:05,613 INFO L130 BoogieDeclarations]: Found specification of procedure kref_sub [2023-12-02 14:58:05,613 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_sub [2023-12-02 14:58:05,613 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-12-02 14:58:05,613 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-12-02 14:58:05,613 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-12-02 14:58:05,613 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-12-02 14:58:05,614 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_spinlock_spin_lock_asynclock_of_parport_uss720_private [2023-12-02 14:58:05,614 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_spinlock_spin_lock_asynclock_of_parport_uss720_private [2023-12-02 14:58:05,614 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2023-12-02 14:58:05,614 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2023-12-02 14:58:05,614 INFO L130 BoogieDeclarations]: Found specification of procedure set_1284_register [2023-12-02 14:58:05,614 INFO L138 BoogieDeclarations]: Found implementation of procedure set_1284_register [2023-12-02 14:58:05,615 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_sock_check_final_state [2023-12-02 14:58:05,615 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_sock_check_final_state [2023-12-02 14:58:05,615 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_gadget_check_final_state [2023-12-02 14:58:05,615 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_gadget_check_final_state [2023-12-02 14:58:05,615 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-02 14:58:05,615 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2023-12-02 14:58:05,615 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2023-12-02 14:58:05,616 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_fs_sysfs_check_final_state [2023-12-02 14:58:05,616 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_fs_sysfs_check_final_state [2023-12-02 14:58:05,616 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-12-02 14:58:05,616 INFO L130 BoogieDeclarations]: Found specification of procedure async_complete [2023-12-02 14:58:05,616 INFO L138 BoogieDeclarations]: Found implementation of procedure async_complete [2023-12-02 14:58:05,616 INFO L130 BoogieDeclarations]: Found specification of procedure parport_uss720_read_control [2023-12-02 14:58:05,617 INFO L138 BoogieDeclarations]: Found implementation of procedure parport_uss720_read_control [2023-12-02 14:58:05,617 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-12-02 14:58:05,617 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-12-02 14:58:05,617 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-12-02 14:58:05,617 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2023-12-02 14:58:05,617 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2023-12-02 14:58:05,617 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2023-12-02 14:58:05,618 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2023-12-02 14:58:05,618 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_rtnetlink_check_final_state [2023-12-02 14:58:05,618 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_rtnetlink_check_final_state [2023-12-02 14:58:05,618 INFO L130 BoogieDeclarations]: Found specification of procedure parport_uss720_enable_irq [2023-12-02 14:58:05,618 INFO L138 BoogieDeclarations]: Found implementation of procedure parport_uss720_enable_irq [2023-12-02 14:58:05,618 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_intfdata [2023-12-02 14:58:05,618 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_intfdata [2023-12-02 14:58:05,619 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2023-12-02 14:58:05,619 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2023-12-02 14:58:05,619 INFO L130 BoogieDeclarations]: Found specification of procedure clear_epp_timeout [2023-12-02 14:58:05,619 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_epp_timeout [2023-12-02 14:58:05,619 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2023-12-02 14:58:05,619 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2023-12-02 14:58:05,620 INFO L130 BoogieDeclarations]: Found specification of procedure uss720_disconnect [2023-12-02 14:58:05,620 INFO L138 BoogieDeclarations]: Found implementation of procedure uss720_disconnect [2023-12-02 14:58:05,620 INFO L130 BoogieDeclarations]: Found specification of procedure parport_uss720_data_forward [2023-12-02 14:58:05,620 INFO L138 BoogieDeclarations]: Found implementation of procedure parport_uss720_data_forward [2023-12-02 14:58:05,620 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_alloc_usb_lock_check_alloc_flags [2023-12-02 14:58:05,620 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_alloc_usb_lock_check_alloc_flags [2023-12-02 14:58:05,620 INFO L130 BoogieDeclarations]: Found specification of procedure kill_all_async_requests_priv [2023-12-02 14:58:05,621 INFO L138 BoogieDeclarations]: Found implementation of procedure kill_all_async_requests_priv [2023-12-02 14:58:05,621 INFO L130 BoogieDeclarations]: Found specification of procedure usb_bulk_msg [2023-12-02 14:58:05,621 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_bulk_msg [2023-12-02 14:58:05,621 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_check_final_state [2023-12-02 14:58:05,621 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_check_final_state [2023-12-02 14:58:05,621 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_urb_check_final_state [2023-12-02 14:58:05,621 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_urb_check_final_state [2023-12-02 14:58:05,621 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_linux_kernel_locking_spinlock_spin_lock [2023-12-02 14:58:05,621 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_linux_kernel_locking_spinlock_spin_lock [2023-12-02 14:58:05,621 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2023-12-02 14:58:05,622 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2023-12-02 14:58:05,622 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_rwlock_check_final_state [2023-12-02 14:58:05,622 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_rwlock_check_final_state [2023-12-02 14:58:05,622 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-12-02 14:58:05,622 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-12-02 14:58:05,622 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-12-02 14:58:05,622 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_fs_char_dev_check_final_state [2023-12-02 14:58:05,622 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_fs_char_dev_check_final_state [2023-12-02 14:58:05,622 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-12-02 14:58:05,623 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-12-02 14:58:05,623 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_drivers_base_class_check_final_state [2023-12-02 14:58:05,623 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_drivers_base_class_check_final_state [2023-12-02 14:58:05,623 INFO L130 BoogieDeclarations]: Found specification of procedure kref_init [2023-12-02 14:58:05,623 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_init [2023-12-02 14:58:05,623 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2023-12-02 14:58:05,623 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2023-12-02 14:58:05,623 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_sched_check_final_state [2023-12-02 14:58:05,623 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_sched_check_final_state [2023-12-02 14:58:05,623 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 14:58:06,135 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 14:58:06,138 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 14:58:06,727 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-12-02 14:58:08,668 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 14:58:09,392 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 14:58:09,393 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-02 14:58:09,395 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 02:58:09 BoogieIcfgContainer [2023-12-02 14:58:09,395 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 14:58:09,397 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 14:58:09,397 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 14:58:09,400 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 14:58:09,401 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 02:58:02" (1/3) ... [2023-12-02 14:58:09,401 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@236ea0c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 02:58:09, skipping insertion in model container [2023-12-02 14:58:09,401 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:58:05" (2/3) ... [2023-12-02 14:58:09,402 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@236ea0c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 02:58:09, skipping insertion in model container [2023-12-02 14:58:09,402 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 02:58:09" (3/3) ... [2023-12-02 14:58:09,403 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.0-rc1---drivers--usb--misc--uss720.ko.cil.i [2023-12-02 14:58:09,421 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 14:58:09,422 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 33 error locations. [2023-12-02 14:58:09,489 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 14:58:09,495 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;@60f1cd5d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 14:58:09,495 INFO L358 AbstractCegarLoop]: Starting to check reachability of 33 error locations. [2023-12-02 14:58:09,504 INFO L276 IsEmpty]: Start isEmpty. Operand has 936 states, 550 states have (on average 1.3618181818181818) internal successors, (749), 597 states have internal predecessors, (749), 276 states have call successors, (276), 77 states have call predecessors, (276), 76 states have return successors, (272), 266 states have call predecessors, (272), 272 states have call successors, (272) [2023-12-02 14:58:09,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2023-12-02 14:58:09,515 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 14:58:09,516 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 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] [2023-12-02 14:58:09,516 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_linux_arch_io_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [get_1284_registerErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2023-12-02 14:58:09,521 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 14:58:09,521 INFO L85 PathProgramCache]: Analyzing trace with hash -1452242695, now seen corresponding path program 1 times [2023-12-02 14:58:09,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 14:58:09,531 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [910729038] [2023-12-02 14:58:09,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:58:09,532 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 14:58:09,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:58:10,296 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-12-02 14:58:10,296 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 14:58:10,297 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [910729038] [2023-12-02 14:58:10,297 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [910729038] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 14:58:10,297 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 14:58:10,298 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-02 14:58:10,299 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1260078419] [2023-12-02 14:58:10,300 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 14:58:10,304 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 14:58:10,304 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 14:58:10,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 14:58:10,331 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-02 14:58:10,336 INFO L87 Difference]: Start difference. First operand has 936 states, 550 states have (on average 1.3618181818181818) internal successors, (749), 597 states have internal predecessors, (749), 276 states have call successors, (276), 77 states have call predecessors, (276), 76 states have return successors, (272), 266 states have call predecessors, (272), 272 states have call successors, (272) Second operand has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 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 14:58:11,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 14:58:11,393 INFO L93 Difference]: Finished difference Result 1821 states and 2663 transitions. [2023-12-02 14:58:11,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 14:58:11,396 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 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 53 [2023-12-02 14:58:11,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 14:58:11,416 INFO L225 Difference]: With dead ends: 1821 [2023-12-02 14:58:11,417 INFO L226 Difference]: Without dead ends: 922 [2023-12-02 14:58:11,428 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 14:58:11,432 INFO L413 NwaCegarLoop]: 1099 mSDtfsCounter, 1238 mSDsluCounter, 1099 mSDsCounter, 0 mSdLazyCounter, 322 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1238 SdHoareTripleChecker+Valid, 2198 SdHoareTripleChecker+Invalid, 322 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 322 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-02 14:58:11,432 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1238 Valid, 2198 Invalid, 322 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 322 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-02 14:58:11,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 922 states. [2023-12-02 14:58:11,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 922 to 922. [2023-12-02 14:58:11,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 922 states, 543 states have (on average 1.296500920810313) internal successors, (704), 586 states have internal predecessors, (704), 272 states have call successors, (272), 76 states have call predecessors, (272), 75 states have return successors, (270), 264 states have call predecessors, (270), 270 states have call successors, (270) [2023-12-02 14:58:11,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 922 states to 922 states and 1246 transitions. [2023-12-02 14:58:11,563 INFO L78 Accepts]: Start accepts. Automaton has 922 states and 1246 transitions. Word has length 53 [2023-12-02 14:58:11,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 14:58:11,565 INFO L495 AbstractCegarLoop]: Abstraction has 922 states and 1246 transitions. [2023-12-02 14:58:11,566 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 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 14:58:11,566 INFO L276 IsEmpty]: Start isEmpty. Operand 922 states and 1246 transitions. [2023-12-02 14:58:11,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-12-02 14:58:11,569 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 14:58:11,569 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 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] [2023-12-02 14:58:11,570 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-02 14:58:11,570 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_linux_block_genhd_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [get_1284_registerErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2023-12-02 14:58:11,570 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 14:58:11,571 INFO L85 PathProgramCache]: Analyzing trace with hash 130082511, now seen corresponding path program 1 times [2023-12-02 14:58:11,571 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 14:58:11,571 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1201273009] [2023-12-02 14:58:11,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:58:11,571 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 14:58:11,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:58:12,104 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-12-02 14:58:12,104 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 14:58:12,105 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1201273009] [2023-12-02 14:58:12,105 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1201273009] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 14:58:12,105 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 14:58:12,105 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-02 14:58:12,105 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1207522675] [2023-12-02 14:58:12,106 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 14:58:12,107 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 14:58:12,107 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 14:58:12,108 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 14:58:12,108 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-02 14:58:12,109 INFO L87 Difference]: Start difference. First operand 922 states and 1246 transitions. Second operand has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 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 14:58:12,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 14:58:12,842 INFO L93 Difference]: Finished difference Result 922 states and 1246 transitions. [2023-12-02 14:58:12,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 14:58:12,842 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 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 58 [2023-12-02 14:58:12,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 14:58:12,851 INFO L225 Difference]: With dead ends: 922 [2023-12-02 14:58:12,851 INFO L226 Difference]: Without dead ends: 920 [2023-12-02 14:58:12,852 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 14:58:12,853 INFO L413 NwaCegarLoop]: 1083 mSDtfsCounter, 1220 mSDsluCounter, 1083 mSDsCounter, 0 mSdLazyCounter, 320 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1220 SdHoareTripleChecker+Valid, 2166 SdHoareTripleChecker+Invalid, 320 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 320 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-02 14:58:12,853 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1220 Valid, 2166 Invalid, 320 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 320 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-02 14:58:12,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 920 states. [2023-12-02 14:58:12,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 920 to 920. [2023-12-02 14:58:12,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 920 states, 542 states have (on average 1.2952029520295203) internal successors, (702), 584 states have internal predecessors, (702), 272 states have call successors, (272), 76 states have call predecessors, (272), 75 states have return successors, (270), 264 states have call predecessors, (270), 270 states have call successors, (270) [2023-12-02 14:58:12,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 920 states to 920 states and 1244 transitions. [2023-12-02 14:58:12,911 INFO L78 Accepts]: Start accepts. Automaton has 920 states and 1244 transitions. Word has length 58 [2023-12-02 14:58:12,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 14:58:12,911 INFO L495 AbstractCegarLoop]: Abstraction has 920 states and 1244 transitions. [2023-12-02 14:58:12,912 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 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 14:58:12,912 INFO L276 IsEmpty]: Start isEmpty. Operand 920 states and 1244 transitions. [2023-12-02 14:58:12,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2023-12-02 14:58:12,915 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 14:58:12,915 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 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] [2023-12-02 14:58:12,916 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-02 14:58:12,916 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_linux_block_queue_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [get_1284_registerErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2023-12-02 14:58:12,916 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 14:58:12,916 INFO L85 PathProgramCache]: Analyzing trace with hash -293472459, now seen corresponding path program 1 times [2023-12-02 14:58:12,917 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 14:58:12,917 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1828482719] [2023-12-02 14:58:12,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:58:12,917 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 14:58:13,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:58:13,292 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-12-02 14:58:13,292 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 14:58:13,292 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1828482719] [2023-12-02 14:58:13,292 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1828482719] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 14:58:13,293 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 14:58:13,293 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-02 14:58:13,293 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [553157771] [2023-12-02 14:58:13,293 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 14:58:13,293 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 14:58:13,294 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 14:58:13,294 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 14:58:13,294 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-02 14:58:13,295 INFO L87 Difference]: Start difference. First operand 920 states and 1244 transitions. Second operand has 4 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 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 14:58:14,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 14:58:14,167 INFO L93 Difference]: Finished difference Result 920 states and 1244 transitions. [2023-12-02 14:58:14,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 14:58:14,168 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 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 63 [2023-12-02 14:58:14,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 14:58:14,175 INFO L225 Difference]: With dead ends: 920 [2023-12-02 14:58:14,175 INFO L226 Difference]: Without dead ends: 918 [2023-12-02 14:58:14,176 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 14:58:14,177 INFO L413 NwaCegarLoop]: 1081 mSDtfsCounter, 1217 mSDsluCounter, 1081 mSDsCounter, 0 mSdLazyCounter, 320 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1217 SdHoareTripleChecker+Valid, 2162 SdHoareTripleChecker+Invalid, 320 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 320 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-02 14:58:14,177 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1217 Valid, 2162 Invalid, 320 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 320 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-02 14:58:14,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 918 states. [2023-12-02 14:58:14,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 918 to 918. [2023-12-02 14:58:14,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 918 states, 541 states have (on average 1.2939001848428835) internal successors, (700), 582 states have internal predecessors, (700), 272 states have call successors, (272), 76 states have call predecessors, (272), 75 states have return successors, (270), 264 states have call predecessors, (270), 270 states have call successors, (270) [2023-12-02 14:58:14,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 918 states to 918 states and 1242 transitions. [2023-12-02 14:58:14,224 INFO L78 Accepts]: Start accepts. Automaton has 918 states and 1242 transitions. Word has length 63 [2023-12-02 14:58:14,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 14:58:14,225 INFO L495 AbstractCegarLoop]: Abstraction has 918 states and 1242 transitions. [2023-12-02 14:58:14,225 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 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 14:58:14,225 INFO L276 IsEmpty]: Start isEmpty. Operand 918 states and 1242 transitions. [2023-12-02 14:58:14,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2023-12-02 14:58:14,228 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 14:58:14,229 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 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] [2023-12-02 14:58:14,229 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-02 14:58:14,229 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_linux_block_request_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [get_1284_registerErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2023-12-02 14:58:14,229 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 14:58:14,230 INFO L85 PathProgramCache]: Analyzing trace with hash -1580372579, now seen corresponding path program 1 times [2023-12-02 14:58:14,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 14:58:14,230 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [445729424] [2023-12-02 14:58:14,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:58:14,230 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 14:58:14,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:58:14,508 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-12-02 14:58:14,508 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 14:58:14,508 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [445729424] [2023-12-02 14:58:14,508 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [445729424] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 14:58:14,508 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 14:58:14,509 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-02 14:58:14,509 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [917481753] [2023-12-02 14:58:14,509 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 14:58:14,509 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 14:58:14,510 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 14:58:14,510 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 14:58:14,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-02 14:58:14,510 INFO L87 Difference]: Start difference. First operand 918 states and 1242 transitions. Second operand has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 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 14:58:15,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 14:58:15,288 INFO L93 Difference]: Finished difference Result 918 states and 1242 transitions. [2023-12-02 14:58:15,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 14:58:15,289 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 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 68 [2023-12-02 14:58:15,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 14:58:15,296 INFO L225 Difference]: With dead ends: 918 [2023-12-02 14:58:15,296 INFO L226 Difference]: Without dead ends: 916 [2023-12-02 14:58:15,296 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 14:58:15,297 INFO L413 NwaCegarLoop]: 1079 mSDtfsCounter, 1214 mSDsluCounter, 1079 mSDsCounter, 0 mSdLazyCounter, 320 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1214 SdHoareTripleChecker+Valid, 2158 SdHoareTripleChecker+Invalid, 320 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 320 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-02 14:58:15,298 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1214 Valid, 2158 Invalid, 320 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 320 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-02 14:58:15,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 916 states. [2023-12-02 14:58:15,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 916 to 916. [2023-12-02 14:58:15,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 916 states, 540 states have (on average 1.2925925925925925) internal successors, (698), 580 states have internal predecessors, (698), 272 states have call successors, (272), 76 states have call predecessors, (272), 75 states have return successors, (270), 264 states have call predecessors, (270), 270 states have call successors, (270) [2023-12-02 14:58:15,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 916 states to 916 states and 1240 transitions. [2023-12-02 14:58:15,367 INFO L78 Accepts]: Start accepts. Automaton has 916 states and 1240 transitions. Word has length 68 [2023-12-02 14:58:15,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 14:58:15,367 INFO L495 AbstractCegarLoop]: Abstraction has 916 states and 1240 transitions. [2023-12-02 14:58:15,367 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 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 14:58:15,368 INFO L276 IsEmpty]: Start isEmpty. Operand 916 states and 1240 transitions. [2023-12-02 14:58:15,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2023-12-02 14:58:15,369 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 14:58:15,370 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 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] [2023-12-02 14:58:15,370 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-02 14:58:15,370 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_linux_drivers_base_class_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [get_1284_registerErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2023-12-02 14:58:15,370 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 14:58:15,371 INFO L85 PathProgramCache]: Analyzing trace with hash 1046745269, now seen corresponding path program 1 times [2023-12-02 14:58:15,371 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 14:58:15,371 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1190598645] [2023-12-02 14:58:15,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:58:15,371 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 14:58:15,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:58:15,770 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-12-02 14:58:15,770 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 14:58:15,770 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1190598645] [2023-12-02 14:58:15,771 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1190598645] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 14:58:15,771 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 14:58:15,771 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-02 14:58:15,771 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1063603601] [2023-12-02 14:58:15,771 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 14:58:15,772 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 14:58:15,772 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 14:58:15,773 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 14:58:15,773 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-02 14:58:15,773 INFO L87 Difference]: Start difference. First operand 916 states and 1240 transitions. Second operand has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 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 14:58:16,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 14:58:16,552 INFO L93 Difference]: Finished difference Result 916 states and 1240 transitions. [2023-12-02 14:58:16,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 14:58:16,552 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 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 73 [2023-12-02 14:58:16,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 14:58:16,560 INFO L225 Difference]: With dead ends: 916 [2023-12-02 14:58:16,560 INFO L226 Difference]: Without dead ends: 914 [2023-12-02 14:58:16,561 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 14:58:16,562 INFO L413 NwaCegarLoop]: 1077 mSDtfsCounter, 1211 mSDsluCounter, 1077 mSDsCounter, 0 mSdLazyCounter, 320 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1211 SdHoareTripleChecker+Valid, 2154 SdHoareTripleChecker+Invalid, 320 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 320 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-02 14:58:16,562 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1211 Valid, 2154 Invalid, 320 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 320 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-02 14:58:16,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 914 states. [2023-12-02 14:58:16,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 914 to 914. [2023-12-02 14:58:16,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 914 states, 539 states have (on average 1.2912801484230056) internal successors, (696), 578 states have internal predecessors, (696), 272 states have call successors, (272), 76 states have call predecessors, (272), 75 states have return successors, (270), 264 states have call predecessors, (270), 270 states have call successors, (270) [2023-12-02 14:58:16,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 914 states to 914 states and 1238 transitions. [2023-12-02 14:58:16,635 INFO L78 Accepts]: Start accepts. Automaton has 914 states and 1238 transitions. Word has length 73 [2023-12-02 14:58:16,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 14:58:16,635 INFO L495 AbstractCegarLoop]: Abstraction has 914 states and 1238 transitions. [2023-12-02 14:58:16,636 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 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 14:58:16,636 INFO L276 IsEmpty]: Start isEmpty. Operand 914 states and 1238 transitions. [2023-12-02 14:58:16,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2023-12-02 14:58:16,637 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 14:58:16,638 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 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] [2023-12-02 14:58:16,638 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-02 14:58:16,638 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_linux_fs_char_dev_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [get_1284_registerErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2023-12-02 14:58:16,638 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 14:58:16,639 INFO L85 PathProgramCache]: Analyzing trace with hash -1705794969, now seen corresponding path program 1 times [2023-12-02 14:58:16,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 14:58:16,639 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1276648156] [2023-12-02 14:58:16,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:58:16,639 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 14:58:16,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:58:17,071 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-12-02 14:58:17,071 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 14:58:17,071 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1276648156] [2023-12-02 14:58:17,072 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1276648156] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 14:58:17,072 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 14:58:17,072 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-02 14:58:17,072 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1405203385] [2023-12-02 14:58:17,072 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 14:58:17,073 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 14:58:17,073 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 14:58:17,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 14:58:17,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-02 14:58:17,074 INFO L87 Difference]: Start difference. First operand 914 states and 1238 transitions. Second operand has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 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 14:58:18,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 14:58:18,032 INFO L93 Difference]: Finished difference Result 914 states and 1238 transitions. [2023-12-02 14:58:18,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 14:58:18,032 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 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 78 [2023-12-02 14:58:18,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 14:58:18,039 INFO L225 Difference]: With dead ends: 914 [2023-12-02 14:58:18,040 INFO L226 Difference]: Without dead ends: 912 [2023-12-02 14:58:18,040 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 14:58:18,041 INFO L413 NwaCegarLoop]: 1075 mSDtfsCounter, 1208 mSDsluCounter, 1075 mSDsCounter, 0 mSdLazyCounter, 320 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1208 SdHoareTripleChecker+Valid, 2150 SdHoareTripleChecker+Invalid, 320 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 320 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-02 14:58:18,041 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1208 Valid, 2150 Invalid, 320 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 320 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-02 14:58:18,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 912 states. [2023-12-02 14:58:18,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 912 to 912. [2023-12-02 14:58:18,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 912 states, 538 states have (on average 1.2899628252788105) internal successors, (694), 576 states have internal predecessors, (694), 272 states have call successors, (272), 76 states have call predecessors, (272), 75 states have return successors, (270), 264 states have call predecessors, (270), 270 states have call successors, (270) [2023-12-02 14:58:18,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 912 states to 912 states and 1236 transitions. [2023-12-02 14:58:18,127 INFO L78 Accepts]: Start accepts. Automaton has 912 states and 1236 transitions. Word has length 78 [2023-12-02 14:58:18,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 14:58:18,127 INFO L495 AbstractCegarLoop]: Abstraction has 912 states and 1236 transitions. [2023-12-02 14:58:18,127 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 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 14:58:18,127 INFO L276 IsEmpty]: Start isEmpty. Operand 912 states and 1236 transitions. [2023-12-02 14:58:18,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2023-12-02 14:58:18,129 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 14:58:18,130 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 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 14:58:18,130 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-02 14:58:18,130 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [get_1284_registerErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2023-12-02 14:58:18,130 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 14:58:18,130 INFO L85 PathProgramCache]: Analyzing trace with hash -268833716, now seen corresponding path program 1 times [2023-12-02 14:58:18,131 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 14:58:18,131 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1273483945] [2023-12-02 14:58:18,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:58:18,131 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 14:58:18,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:58:18,387 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-12-02 14:58:18,387 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 14:58:18,387 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1273483945] [2023-12-02 14:58:18,387 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1273483945] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 14:58:18,387 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 14:58:18,387 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-02 14:58:18,388 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1370625874] [2023-12-02 14:58:18,388 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 14:58:18,388 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 14:58:18,388 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 14:58:18,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 14:58:18,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-02 14:58:18,389 INFO L87 Difference]: Start difference. First operand 912 states and 1236 transitions. Second operand has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 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 14:58:19,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 14:58:19,169 INFO L93 Difference]: Finished difference Result 912 states and 1236 transitions. [2023-12-02 14:58:19,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 14:58:19,169 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 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 83 [2023-12-02 14:58:19,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 14:58:19,176 INFO L225 Difference]: With dead ends: 912 [2023-12-02 14:58:19,177 INFO L226 Difference]: Without dead ends: 910 [2023-12-02 14:58:19,177 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 14:58:19,178 INFO L413 NwaCegarLoop]: 1073 mSDtfsCounter, 1205 mSDsluCounter, 1073 mSDsCounter, 0 mSdLazyCounter, 320 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1205 SdHoareTripleChecker+Valid, 2146 SdHoareTripleChecker+Invalid, 320 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 320 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-02 14:58:19,178 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1205 Valid, 2146 Invalid, 320 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 320 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-02 14:58:19,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 910 states. [2023-12-02 14:58:19,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 910 to 910. [2023-12-02 14:58:19,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 910 states, 537 states have (on average 1.2886405959031657) internal successors, (692), 574 states have internal predecessors, (692), 272 states have call successors, (272), 76 states have call predecessors, (272), 75 states have return successors, (270), 264 states have call predecessors, (270), 270 states have call successors, (270) [2023-12-02 14:58:19,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 910 states to 910 states and 1234 transitions. [2023-12-02 14:58:19,276 INFO L78 Accepts]: Start accepts. Automaton has 910 states and 1234 transitions. Word has length 83 [2023-12-02 14:58:19,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 14:58:19,276 INFO L495 AbstractCegarLoop]: Abstraction has 910 states and 1234 transitions. [2023-12-02 14:58:19,277 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 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 14:58:19,277 INFO L276 IsEmpty]: Start isEmpty. Operand 910 states and 1234 transitions. [2023-12-02 14:58:19,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2023-12-02 14:58:19,279 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 14:58:19,279 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 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 14:58:19,279 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-02 14:58:19,280 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_linux_kernel_locking_rwlock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [get_1284_registerErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2023-12-02 14:58:19,280 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 14:58:19,280 INFO L85 PathProgramCache]: Analyzing trace with hash 278598850, now seen corresponding path program 1 times [2023-12-02 14:58:19,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 14:58:19,280 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2024466525] [2023-12-02 14:58:19,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:58:19,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 14:58:19,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:58:19,623 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-12-02 14:58:19,623 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 14:58:19,623 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2024466525] [2023-12-02 14:58:19,623 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2024466525] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 14:58:19,623 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 14:58:19,623 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-02 14:58:19,624 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [998471613] [2023-12-02 14:58:19,624 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 14:58:19,624 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 14:58:19,624 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 14:58:19,625 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 14:58:19,625 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-02 14:58:19,625 INFO L87 Difference]: Start difference. First operand 910 states and 1234 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, (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 14:58:20,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 14:58:20,754 INFO L93 Difference]: Finished difference Result 1748 states and 2438 transitions. [2023-12-02 14:58:20,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-02 14:58:20,755 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, (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 88 [2023-12-02 14:58:20,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 14:58:20,764 INFO L225 Difference]: With dead ends: 1748 [2023-12-02 14:58:20,764 INFO L226 Difference]: Without dead ends: 1746 [2023-12-02 14:58:20,765 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 14:58:20,766 INFO L413 NwaCegarLoop]: 1192 mSDtfsCounter, 1190 mSDsluCounter, 2193 mSDsCounter, 0 mSdLazyCounter, 509 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1190 SdHoareTripleChecker+Valid, 3385 SdHoareTripleChecker+Invalid, 510 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 509 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-02 14:58:20,766 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1190 Valid, 3385 Invalid, 510 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 509 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-02 14:58:20,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1746 states. [2023-12-02 14:58:20,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1746 to 1624. [2023-12-02 14:58:20,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1624 states, 970 states have (on average 1.2958762886597939) internal successors, (1257), 1015 states have internal predecessors, (1257), 490 states have call successors, (490), 139 states have call predecessors, (490), 138 states have return successors, (567), 476 states have call predecessors, (567), 488 states have call successors, (567) [2023-12-02 14:58:20,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1624 states to 1624 states and 2314 transitions. [2023-12-02 14:58:20,937 INFO L78 Accepts]: Start accepts. Automaton has 1624 states and 2314 transitions. Word has length 88 [2023-12-02 14:58:20,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 14:58:20,938 INFO L495 AbstractCegarLoop]: Abstraction has 1624 states and 2314 transitions. [2023-12-02 14:58:20,938 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, (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 14:58:20,938 INFO L276 IsEmpty]: Start isEmpty. Operand 1624 states and 2314 transitions. [2023-12-02 14:58:20,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2023-12-02 14:58:20,940 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 14:58:20,941 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 14:58:20,941 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-02 14:58:20,941 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_linux_alloc_irq_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [get_1284_registerErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2023-12-02 14:58:20,941 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 14:58:20,942 INFO L85 PathProgramCache]: Analyzing trace with hash 229962361, now seen corresponding path program 1 times [2023-12-02 14:58:20,942 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 14:58:20,942 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [505108162] [2023-12-02 14:58:20,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:58:20,942 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 14:58:21,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:58:21,917 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2023-12-02 14:58:21,918 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 14:58:21,918 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [505108162] [2023-12-02 14:58:21,918 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [505108162] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 14:58:21,918 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 14:58:21,918 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-02 14:58:21,918 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [815562778] [2023-12-02 14:58:21,919 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 14:58:21,919 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-02 14:58:21,919 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 14:58:21,920 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-02 14:58:21,920 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-02 14:58:21,920 INFO L87 Difference]: Start difference. First operand 1624 states and 2314 transitions. Second operand has 6 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) [2023-12-02 14:58:24,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 14:58:24,154 INFO L93 Difference]: Finished difference Result 1624 states and 2314 transitions. [2023-12-02 14:58:24,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-02 14:58:24,155 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) Word has length 99 [2023-12-02 14:58:24,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 14:58:24,166 INFO L225 Difference]: With dead ends: 1624 [2023-12-02 14:58:24,166 INFO L226 Difference]: Without dead ends: 1622 [2023-12-02 14:58:24,167 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 14:58:24,168 INFO L413 NwaCegarLoop]: 1072 mSDtfsCounter, 1186 mSDsluCounter, 2673 mSDsCounter, 0 mSdLazyCounter, 1179 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1187 SdHoareTripleChecker+Valid, 3745 SdHoareTripleChecker+Invalid, 1179 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1179 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2023-12-02 14:58:24,168 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1187 Valid, 3745 Invalid, 1179 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1179 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2023-12-02 14:58:24,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1622 states. [2023-12-02 14:58:24,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1622 to 1622. [2023-12-02 14:58:24,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1622 states, 969 states have (on average 1.2941176470588236) internal successors, (1254), 1013 states have internal predecessors, (1254), 490 states have call successors, (490), 139 states have call predecessors, (490), 138 states have return successors, (567), 476 states have call predecessors, (567), 488 states have call successors, (567) [2023-12-02 14:58:24,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1622 states to 1622 states and 2311 transitions. [2023-12-02 14:58:24,318 INFO L78 Accepts]: Start accepts. Automaton has 1622 states and 2311 transitions. Word has length 99 [2023-12-02 14:58:24,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 14:58:24,319 INFO L495 AbstractCegarLoop]: Abstraction has 1622 states and 2311 transitions. [2023-12-02 14:58:24,319 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) [2023-12-02 14:58:24,319 INFO L276 IsEmpty]: Start isEmpty. Operand 1622 states and 2311 transitions. [2023-12-02 14:58:24,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2023-12-02 14:58:24,321 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 14:58:24,321 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 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] [2023-12-02 14:58:24,322 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-12-02 14:58:24,322 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_linux_kernel_locking_rwlock_check_final_stateErr1ASSERT_VIOLATIONERROR_FUNCTION === [get_1284_registerErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2023-12-02 14:58:24,322 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 14:58:24,322 INFO L85 PathProgramCache]: Analyzing trace with hash 1445673797, now seen corresponding path program 1 times [2023-12-02 14:58:24,322 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 14:58:24,323 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [921042102] [2023-12-02 14:58:24,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:58:24,323 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 14:58:24,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:58:24,666 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-12-02 14:58:24,666 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 14:58:24,666 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [921042102] [2023-12-02 14:58:24,667 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [921042102] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 14:58:24,667 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 14:58:24,667 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-02 14:58:24,667 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [936047646] [2023-12-02 14:58:24,667 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 14:58:24,667 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 14:58:24,668 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 14:58:24,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 14:58:24,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-02 14:58:24,668 INFO L87 Difference]: Start difference. First operand 1622 states and 2311 transitions. Second operand has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 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 14:58:25,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 14:58:25,496 INFO L93 Difference]: Finished difference Result 1622 states and 2311 transitions. [2023-12-02 14:58:25,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 14:58:25,496 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 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 90 [2023-12-02 14:58:25,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 14:58:25,508 INFO L225 Difference]: With dead ends: 1622 [2023-12-02 14:58:25,508 INFO L226 Difference]: Without dead ends: 1620 [2023-12-02 14:58:25,510 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 14:58:25,510 INFO L413 NwaCegarLoop]: 1069 mSDtfsCounter, 1198 mSDsluCounter, 1069 mSDsCounter, 0 mSdLazyCounter, 320 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1198 SdHoareTripleChecker+Valid, 2138 SdHoareTripleChecker+Invalid, 320 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 320 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-02 14:58:25,511 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1198 Valid, 2138 Invalid, 320 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 320 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-02 14:58:25,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1620 states. [2023-12-02 14:58:25,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1620 to 1620. [2023-12-02 14:58:25,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1620 states, 968 states have (on average 1.2923553719008265) internal successors, (1251), 1011 states have internal predecessors, (1251), 490 states have call successors, (490), 139 states have call predecessors, (490), 138 states have return successors, (567), 476 states have call predecessors, (567), 488 states have call successors, (567) [2023-12-02 14:58:25,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1620 states to 1620 states and 2308 transitions. [2023-12-02 14:58:25,687 INFO L78 Accepts]: Start accepts. Automaton has 1620 states and 2308 transitions. Word has length 90 [2023-12-02 14:58:25,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 14:58:25,687 INFO L495 AbstractCegarLoop]: Abstraction has 1620 states and 2308 transitions. [2023-12-02 14:58:25,687 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 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 14:58:25,687 INFO L276 IsEmpty]: Start isEmpty. Operand 1620 states and 2308 transitions. [2023-12-02 14:58:25,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-12-02 14:58:25,689 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 14:58:25,690 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 14:58:25,690 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-12-02 14:58:25,690 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting get_1284_registerErr0ASSERT_VIOLATIONERROR_FUNCTION === [get_1284_registerErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2023-12-02 14:58:25,690 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 14:58:25,691 INFO L85 PathProgramCache]: Analyzing trace with hash -61531751, now seen corresponding path program 1 times [2023-12-02 14:58:25,691 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 14:58:25,691 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [750367947] [2023-12-02 14:58:25,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:58:25,691 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 14:58:25,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:58:26,219 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2023-12-02 14:58:26,220 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 14:58:26,220 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [750367947] [2023-12-02 14:58:26,220 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [750367947] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 14:58:26,220 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 14:58:26,220 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-02 14:58:26,220 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1089884448] [2023-12-02 14:58:26,220 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 14:58:26,221 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-02 14:58:26,221 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 14:58:26,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-02 14:58:26,221 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-02 14:58:26,222 INFO L87 Difference]: Start difference. First operand 1620 states and 2308 transitions. Second operand has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (20), 1 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 1 states have call successors, (18) [2023-12-02 14:58:27,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 14:58:27,696 INFO L93 Difference]: Finished difference Result 3179 states and 4659 transitions. [2023-12-02 14:58:27,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-02 14:58:27,696 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (20), 1 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 1 states have call successors, (18) Word has length 100 [2023-12-02 14:58:27,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 14:58:27,706 INFO L225 Difference]: With dead ends: 3179 [2023-12-02 14:58:27,707 INFO L226 Difference]: Without dead ends: 1636 [2023-12-02 14:58:27,715 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 14:58:27,715 INFO L413 NwaCegarLoop]: 1081 mSDtfsCounter, 3 mSDsluCounter, 3232 mSDsCounter, 0 mSdLazyCounter, 648 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 4313 SdHoareTripleChecker+Invalid, 653 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 648 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-12-02 14:58:27,715 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 4313 Invalid, 653 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 648 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-12-02 14:58:27,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1636 states. [2023-12-02 14:58:27,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1636 to 1628. [2023-12-02 14:58:27,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1628 states, 974 states have (on average 1.2905544147843941) internal successors, (1257), 1017 states have internal predecessors, (1257), 490 states have call successors, (490), 139 states have call predecessors, (490), 140 states have return successors, (571), 478 states have call predecessors, (571), 488 states have call successors, (571) [2023-12-02 14:58:27,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1628 states to 1628 states and 2318 transitions. [2023-12-02 14:58:27,896 INFO L78 Accepts]: Start accepts. Automaton has 1628 states and 2318 transitions. Word has length 100 [2023-12-02 14:58:27,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 14:58:27,896 INFO L495 AbstractCegarLoop]: Abstraction has 1628 states and 2318 transitions. [2023-12-02 14:58:27,897 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (20), 1 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 1 states have call successors, (18) [2023-12-02 14:58:27,897 INFO L276 IsEmpty]: Start isEmpty. Operand 1628 states and 2318 transitions. [2023-12-02 14:58:27,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2023-12-02 14:58:27,900 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 14:58:27,900 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 14:58:27,900 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-12-02 14:58:27,901 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [get_1284_registerErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2023-12-02 14:58:27,901 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 14:58:27,901 INFO L85 PathProgramCache]: Analyzing trace with hash -504880004, now seen corresponding path program 1 times [2023-12-02 14:58:27,901 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 14:58:27,902 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1184460078] [2023-12-02 14:58:27,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:58:27,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 14:58:28,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:58:28,329 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2023-12-02 14:58:28,329 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 14:58:28,329 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1184460078] [2023-12-02 14:58:28,330 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1184460078] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 14:58:28,330 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 14:58:28,330 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 14:58:28,330 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [701368157] [2023-12-02 14:58:28,330 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 14:58:28,331 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 14:58:28,331 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 14:58:28,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 14:58:28,331 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 14:58:28,332 INFO L87 Difference]: Start difference. First operand 1628 states and 2318 transitions. Second operand has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2023-12-02 14:58:29,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 14:58:29,042 INFO L93 Difference]: Finished difference Result 3204 states and 4811 transitions. [2023-12-02 14:58:29,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 14:58:29,043 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 105 [2023-12-02 14:58:29,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 14:58:29,052 INFO L225 Difference]: With dead ends: 3204 [2023-12-02 14:58:29,052 INFO L226 Difference]: Without dead ends: 1622 [2023-12-02 14:58:29,060 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 14:58:29,061 INFO L413 NwaCegarLoop]: 1065 mSDtfsCounter, 1178 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 160 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1178 SdHoareTripleChecker+Valid, 1065 SdHoareTripleChecker+Invalid, 160 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 160 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-02 14:58:29,061 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1178 Valid, 1065 Invalid, 160 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 160 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-02 14:58:29,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1622 states. [2023-12-02 14:58:29,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1622 to 1622. [2023-12-02 14:58:29,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1622 states, 969 states have (on average 1.2879256965944272) internal successors, (1248), 1011 states have internal predecessors, (1248), 490 states have call successors, (490), 139 states have call predecessors, (490), 140 states have return successors, (571), 478 states have call predecessors, (571), 488 states have call successors, (571) [2023-12-02 14:58:29,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1622 states to 1622 states and 2309 transitions. [2023-12-02 14:58:29,224 INFO L78 Accepts]: Start accepts. Automaton has 1622 states and 2309 transitions. Word has length 105 [2023-12-02 14:58:29,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 14:58:29,224 INFO L495 AbstractCegarLoop]: Abstraction has 1622 states and 2309 transitions. [2023-12-02 14:58:29,224 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2023-12-02 14:58:29,225 INFO L276 IsEmpty]: Start isEmpty. Operand 1622 states and 2309 transitions. [2023-12-02 14:58:29,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2023-12-02 14:58:29,227 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 14:58:29,227 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 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] [2023-12-02 14:58:29,227 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-12-02 14:58:29,227 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_linux_kernel_module_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [get_1284_registerErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2023-12-02 14:58:29,227 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 14:58:29,228 INFO L85 PathProgramCache]: Analyzing trace with hash 1179940811, now seen corresponding path program 1 times [2023-12-02 14:58:29,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 14:58:29,228 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [554300771] [2023-12-02 14:58:29,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:58:29,228 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 14:58:29,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:58:29,476 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-12-02 14:58:29,476 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 14:58:29,476 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [554300771] [2023-12-02 14:58:29,476 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [554300771] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 14:58:29,476 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 14:58:29,477 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-02 14:58:29,477 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1879903118] [2023-12-02 14:58:29,477 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 14:58:29,477 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 14:58:29,477 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 14:58:29,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 14:58:29,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-02 14:58:29,478 INFO L87 Difference]: Start difference. First operand 1622 states and 2309 transitions. Second operand has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 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 14:58:30,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 14:58:30,539 INFO L93 Difference]: Finished difference Result 1622 states and 2309 transitions. [2023-12-02 14:58:30,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 14:58:30,540 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 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 95 [2023-12-02 14:58:30,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 14:58:30,552 INFO L225 Difference]: With dead ends: 1622 [2023-12-02 14:58:30,552 INFO L226 Difference]: Without dead ends: 1620 [2023-12-02 14:58:30,553 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 14:58:30,554 INFO L413 NwaCegarLoop]: 1062 mSDtfsCounter, 1192 mSDsluCounter, 1062 mSDsCounter, 0 mSdLazyCounter, 320 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1192 SdHoareTripleChecker+Valid, 2124 SdHoareTripleChecker+Invalid, 320 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 320 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-02 14:58:30,554 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1192 Valid, 2124 Invalid, 320 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 320 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-02 14:58:30,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1620 states. [2023-12-02 14:58:30,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1620 to 1620. [2023-12-02 14:58:30,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1620 states, 968 states have (on average 1.287190082644628) internal successors, (1246), 1009 states have internal predecessors, (1246), 490 states have call successors, (490), 139 states have call predecessors, (490), 140 states have return successors, (571), 478 states have call predecessors, (571), 488 states have call successors, (571) [2023-12-02 14:58:30,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1620 states to 1620 states and 2307 transitions. [2023-12-02 14:58:30,732 INFO L78 Accepts]: Start accepts. Automaton has 1620 states and 2307 transitions. Word has length 95 [2023-12-02 14:58:30,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 14:58:30,732 INFO L495 AbstractCegarLoop]: Abstraction has 1620 states and 2307 transitions. [2023-12-02 14:58:30,733 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 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 14:58:30,733 INFO L276 IsEmpty]: Start isEmpty. Operand 1620 states and 2307 transitions. [2023-12-02 14:58:30,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2023-12-02 14:58:30,736 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 14:58:30,736 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] [2023-12-02 14:58:30,736 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-12-02 14:58:30,737 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_linux_usb_dev_usb_put_devErr0ASSERT_VIOLATIONERROR_FUNCTION === [get_1284_registerErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2023-12-02 14:58:30,737 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 14:58:30,737 INFO L85 PathProgramCache]: Analyzing trace with hash 104935227, now seen corresponding path program 1 times [2023-12-02 14:58:30,737 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 14:58:30,738 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [71823571] [2023-12-02 14:58:30,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:58:30,738 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 14:58:31,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:58:32,612 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 14:58:32,613 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 14:58:32,613 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [71823571] [2023-12-02 14:58:32,613 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [71823571] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 14:58:32,613 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 14:58:32,613 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-02 14:58:32,613 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2077441907] [2023-12-02 14:58:32,613 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 14:58:32,614 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-02 14:58:32,614 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 14:58:32,614 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-02 14:58:32,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-02 14:58:32,615 INFO L87 Difference]: Start difference. First operand 1620 states and 2307 transitions. Second operand has 8 states, 7 states have (on average 4.714285714285714) internal successors, (33), 7 states have internal predecessors, (33), 4 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2023-12-02 14:58:37,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 14:58:37,843 INFO L93 Difference]: Finished difference Result 2994 states and 4225 transitions. [2023-12-02 14:58:37,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-02 14:58:37,844 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 4.714285714285714) internal successors, (33), 7 states have internal predecessors, (33), 4 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 127 [2023-12-02 14:58:37,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 14:58:37,859 INFO L225 Difference]: With dead ends: 2994 [2023-12-02 14:58:37,859 INFO L226 Difference]: Without dead ends: 2992 [2023-12-02 14:58:37,860 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2023-12-02 14:58:37,861 INFO L413 NwaCegarLoop]: 1061 mSDtfsCounter, 1079 mSDsluCounter, 4297 mSDsCounter, 0 mSdLazyCounter, 3148 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1088 SdHoareTripleChecker+Valid, 5358 SdHoareTripleChecker+Invalid, 3157 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 3148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2023-12-02 14:58:37,861 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1088 Valid, 5358 Invalid, 3157 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 3148 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2023-12-02 14:58:37,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2992 states. [2023-12-02 14:58:38,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2992 to 2818. [2023-12-02 14:58:38,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2818 states, 1702 states have (on average 1.2972972972972974) internal successors, (2208), 1761 states have internal predecessors, (2208), 838 states have call successors, (838), 252 states have call predecessors, (838), 256 states have return successors, (994), 814 states have call predecessors, (994), 836 states have call successors, (994) [2023-12-02 14:58:38,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2818 states to 2818 states and 4040 transitions. [2023-12-02 14:58:38,218 INFO L78 Accepts]: Start accepts. Automaton has 2818 states and 4040 transitions. Word has length 127 [2023-12-02 14:58:38,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 14:58:38,218 INFO L495 AbstractCegarLoop]: Abstraction has 2818 states and 4040 transitions. [2023-12-02 14:58:38,219 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 4.714285714285714) internal successors, (33), 7 states have internal predecessors, (33), 4 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2023-12-02 14:58:38,219 INFO L276 IsEmpty]: Start isEmpty. Operand 2818 states and 4040 transitions. [2023-12-02 14:58:38,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-12-02 14:58:38,221 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 14:58:38,221 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 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] [2023-12-02 14:58:38,221 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-12-02 14:58:38,221 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_linux_kernel_rcu_update_lock_bh_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [get_1284_registerErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2023-12-02 14:58:38,222 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 14:58:38,222 INFO L85 PathProgramCache]: Analyzing trace with hash 873531577, now seen corresponding path program 1 times [2023-12-02 14:58:38,222 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 14:58:38,222 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1383533535] [2023-12-02 14:58:38,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:58:38,222 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 14:58:38,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:58:38,504 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-12-02 14:58:38,504 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 14:58:38,504 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1383533535] [2023-12-02 14:58:38,504 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1383533535] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 14:58:38,505 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 14:58:38,505 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-02 14:58:38,505 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1699383014] [2023-12-02 14:58:38,505 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 14:58:38,505 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 14:58:38,505 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 14:58:38,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 14:58:38,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-02 14:58:38,506 INFO L87 Difference]: Start difference. First operand 2818 states and 4040 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, (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 14:58:39,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 14:58:39,489 INFO L93 Difference]: Finished difference Result 2818 states and 4040 transitions. [2023-12-02 14:58:39,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 14:58:39,489 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, (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 100 [2023-12-02 14:58:39,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 14:58:39,508 INFO L225 Difference]: With dead ends: 2818 [2023-12-02 14:58:39,508 INFO L226 Difference]: Without dead ends: 2816 [2023-12-02 14:58:39,510 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 14:58:39,510 INFO L413 NwaCegarLoop]: 1060 mSDtfsCounter, 1189 mSDsluCounter, 1060 mSDsCounter, 0 mSdLazyCounter, 320 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1189 SdHoareTripleChecker+Valid, 2120 SdHoareTripleChecker+Invalid, 320 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 320 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-02 14:58:39,511 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1189 Valid, 2120 Invalid, 320 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 320 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-02 14:58:39,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2816 states. [2023-12-02 14:58:39,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2816 to 2816. [2023-12-02 14:58:39,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2816 states, 1701 states have (on average 1.2968841857730746) internal successors, (2206), 1759 states have internal predecessors, (2206), 838 states have call successors, (838), 252 states have call predecessors, (838), 256 states have return successors, (994), 814 states have call predecessors, (994), 836 states have call successors, (994) [2023-12-02 14:58:39,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2816 states to 2816 states and 4038 transitions. [2023-12-02 14:58:39,826 INFO L78 Accepts]: Start accepts. Automaton has 2816 states and 4038 transitions. Word has length 100 [2023-12-02 14:58:39,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 14:58:39,826 INFO L495 AbstractCegarLoop]: Abstraction has 2816 states and 4038 transitions. [2023-12-02 14:58:39,827 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, (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 14:58:39,827 INFO L276 IsEmpty]: Start isEmpty. Operand 2816 states and 4038 transitions. [2023-12-02 14:58:39,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2023-12-02 14:58:39,829 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 14:58:39,830 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] [2023-12-02 14:58:39,830 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-12-02 14:58:39,830 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_linux_usb_dev_usb_put_devErr1ASSERT_VIOLATIONERROR_FUNCTION === [get_1284_registerErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2023-12-02 14:58:39,830 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 14:58:39,830 INFO L85 PathProgramCache]: Analyzing trace with hash 2058648670, now seen corresponding path program 1 times [2023-12-02 14:58:39,831 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 14:58:39,831 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1354725467] [2023-12-02 14:58:39,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:58:39,831 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 14:58:40,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:58:41,404 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 14:58:41,405 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 14:58:41,405 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1354725467] [2023-12-02 14:58:41,407 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1354725467] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 14:58:41,407 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 14:58:41,407 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-02 14:58:41,407 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [576033185] [2023-12-02 14:58:41,407 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 14:58:41,408 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-02 14:58:41,408 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 14:58:41,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-02 14:58:41,409 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2023-12-02 14:58:41,409 INFO L87 Difference]: Start difference. First operand 2816 states and 4038 transitions. Second operand has 9 states, 8 states have (on average 4.375) internal successors, (35), 8 states have internal predecessors, (35), 4 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2023-12-02 14:58:46,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 14:58:46,210 INFO L93 Difference]: Finished difference Result 4314 states and 6142 transitions. [2023-12-02 14:58:46,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-02 14:58:46,210 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 4.375) internal successors, (35), 8 states have internal predecessors, (35), 4 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 129 [2023-12-02 14:58:46,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 14:58:46,238 INFO L225 Difference]: With dead ends: 4314 [2023-12-02 14:58:46,239 INFO L226 Difference]: Without dead ends: 4312 [2023-12-02 14:58:46,241 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2023-12-02 14:58:46,241 INFO L413 NwaCegarLoop]: 1131 mSDtfsCounter, 1148 mSDsluCounter, 4512 mSDsCounter, 0 mSdLazyCounter, 3342 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1157 SdHoareTripleChecker+Valid, 5643 SdHoareTripleChecker+Invalid, 3350 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 3342 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2023-12-02 14:58:46,241 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1157 Valid, 5643 Invalid, 3350 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 3342 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2023-12-02 14:58:46,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4312 states. [2023-12-02 14:58:46,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4312 to 4085. [2023-12-02 14:58:46,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4085 states, 2477 states have (on average 1.302785627775535) internal successors, (3227), 2550 states have internal predecessors, (3227), 1218 states have call successors, (1218), 363 states have call predecessors, (1218), 369 states have return successors, (1451), 1185 states have call predecessors, (1451), 1216 states have call successors, (1451) [2023-12-02 14:58:46,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4085 states to 4085 states and 5896 transitions. [2023-12-02 14:58:46,623 INFO L78 Accepts]: Start accepts. Automaton has 4085 states and 5896 transitions. Word has length 129 [2023-12-02 14:58:46,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 14:58:46,624 INFO L495 AbstractCegarLoop]: Abstraction has 4085 states and 5896 transitions. [2023-12-02 14:58:46,624 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 4.375) internal successors, (35), 8 states have internal predecessors, (35), 4 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2023-12-02 14:58:46,624 INFO L276 IsEmpty]: Start isEmpty. Operand 4085 states and 5896 transitions. [2023-12-02 14:58:46,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2023-12-02 14:58:46,627 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 14:58:46,627 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] [2023-12-02 14:58:46,627 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-12-02 14:58:46,628 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [get_1284_registerErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2023-12-02 14:58:46,628 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 14:58:46,628 INFO L85 PathProgramCache]: Analyzing trace with hash -647244942, now seen corresponding path program 1 times [2023-12-02 14:58:46,628 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 14:58:46,628 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1790690378] [2023-12-02 14:58:46,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:58:46,629 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 14:58:46,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:58:46,987 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 14:58:46,987 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 14:58:46,987 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1790690378] [2023-12-02 14:58:46,988 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1790690378] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 14:58:46,988 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 14:58:46,988 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 14:58:46,988 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1360419859] [2023-12-02 14:58:46,988 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 14:58:46,989 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 14:58:46,989 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 14:58:46,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 14:58:46,989 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 14:58:46,990 INFO L87 Difference]: Start difference. First operand 4085 states and 5896 transitions. Second operand has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 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 14:58:47,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 14:58:47,870 INFO L93 Difference]: Finished difference Result 6850 states and 9872 transitions. [2023-12-02 14:58:47,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 14:58:47,871 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 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 132 [2023-12-02 14:58:47,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 14:58:47,891 INFO L225 Difference]: With dead ends: 6850 [2023-12-02 14:58:47,891 INFO L226 Difference]: Without dead ends: 4077 [2023-12-02 14:58:47,903 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 14:58:47,904 INFO L413 NwaCegarLoop]: 1056 mSDtfsCounter, 1203 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 160 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1203 SdHoareTripleChecker+Valid, 1056 SdHoareTripleChecker+Invalid, 161 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 160 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-02 14:58:47,904 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1203 Valid, 1056 Invalid, 161 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 160 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-02 14:58:47,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4077 states. [2023-12-02 14:58:48,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4077 to 4077. [2023-12-02 14:58:48,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4077 states, 2470 states have (on average 1.3012145748987853) internal successors, (3214), 2542 states have internal predecessors, (3214), 1218 states have call successors, (1218), 363 states have call predecessors, (1218), 369 states have return successors, (1451), 1185 states have call predecessors, (1451), 1216 states have call successors, (1451) [2023-12-02 14:58:48,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4077 states to 4077 states and 5883 transitions. [2023-12-02 14:58:48,379 INFO L78 Accepts]: Start accepts. Automaton has 4077 states and 5883 transitions. Word has length 132 [2023-12-02 14:58:48,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 14:58:48,379 INFO L495 AbstractCegarLoop]: Abstraction has 4077 states and 5883 transitions. [2023-12-02 14:58:48,380 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 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 14:58:48,380 INFO L276 IsEmpty]: Start isEmpty. Operand 4077 states and 5883 transitions. [2023-12-02 14:58:48,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2023-12-02 14:58:48,383 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 14:58:48,383 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 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] [2023-12-02 14:58:48,383 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-12-02 14:58:48,383 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_linux_kernel_rcu_update_lock_sched_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [get_1284_registerErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2023-12-02 14:58:48,384 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 14:58:48,384 INFO L85 PathProgramCache]: Analyzing trace with hash 727562834, now seen corresponding path program 1 times [2023-12-02 14:58:48,384 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 14:58:48,384 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [508700134] [2023-12-02 14:58:48,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:58:48,384 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 14:58:48,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:58:48,800 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-12-02 14:58:48,800 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 14:58:48,800 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [508700134] [2023-12-02 14:58:48,800 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [508700134] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 14:58:48,800 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 14:58:48,801 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-02 14:58:48,801 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1286569665] [2023-12-02 14:58:48,801 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 14:58:48,801 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 14:58:48,802 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 14:58:48,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 14:58:48,802 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-02 14:58:48,803 INFO L87 Difference]: Start difference. First operand 4077 states and 5883 transitions. Second operand has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 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 14:58:49,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 14:58:49,835 INFO L93 Difference]: Finished difference Result 4077 states and 5883 transitions. [2023-12-02 14:58:49,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 14:58:49,835 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 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 105 [2023-12-02 14:58:49,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 14:58:49,849 INFO L225 Difference]: With dead ends: 4077 [2023-12-02 14:58:49,849 INFO L226 Difference]: Without dead ends: 4075 [2023-12-02 14:58:49,850 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 14:58:49,851 INFO L413 NwaCegarLoop]: 1053 mSDtfsCounter, 1181 mSDsluCounter, 1053 mSDsCounter, 0 mSdLazyCounter, 320 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1181 SdHoareTripleChecker+Valid, 2106 SdHoareTripleChecker+Invalid, 320 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 320 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-02 14:58:49,851 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1181 Valid, 2106 Invalid, 320 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 320 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-02 14:58:49,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4075 states. [2023-12-02 14:58:50,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4075 to 4075. [2023-12-02 14:58:50,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4075 states, 2469 states have (on average 1.300931551235318) internal successors, (3212), 2540 states have internal predecessors, (3212), 1218 states have call successors, (1218), 363 states have call predecessors, (1218), 369 states have return successors, (1451), 1185 states have call predecessors, (1451), 1216 states have call successors, (1451) [2023-12-02 14:58:50,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4075 states to 4075 states and 5881 transitions. [2023-12-02 14:58:50,278 INFO L78 Accepts]: Start accepts. Automaton has 4075 states and 5881 transitions. Word has length 105 [2023-12-02 14:58:50,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 14:58:50,278 INFO L495 AbstractCegarLoop]: Abstraction has 4075 states and 5881 transitions. [2023-12-02 14:58:50,279 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 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 14:58:50,279 INFO L276 IsEmpty]: Start isEmpty. Operand 4075 states and 5881 transitions. [2023-12-02 14:58:50,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2023-12-02 14:58:50,282 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 14:58:50,282 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] [2023-12-02 14:58:50,282 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-12-02 14:58:50,282 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [get_1284_registerErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2023-12-02 14:58:50,283 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 14:58:50,283 INFO L85 PathProgramCache]: Analyzing trace with hash 1051617114, now seen corresponding path program 1 times [2023-12-02 14:58:50,283 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 14:58:50,283 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1915718125] [2023-12-02 14:58:50,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:58:50,284 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 14:58:50,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:58:50,644 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 14:58:50,644 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 14:58:50,644 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1915718125] [2023-12-02 14:58:50,645 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1915718125] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 14:58:50,645 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [383325516] [2023-12-02 14:58:50,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:58:50,645 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 14:58:50,645 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_901edc3c-7b54-4ce7-92a9-b90dad4ea131/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 14:58:50,648 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_901edc3c-7b54-4ce7-92a9-b90dad4ea131/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 14:58:50,651 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_901edc3c-7b54-4ce7-92a9-b90dad4ea131/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-02 14:58:51,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:58:51,544 INFO L262 TraceCheckSpWp]: Trace formula consists of 1981 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-02 14:58:51,554 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 14:58:51,607 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 14:58:51,608 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 14:58:51,608 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [383325516] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 14:58:51,608 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-02 14:58:51,608 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2023-12-02 14:58:51,609 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1657757060] [2023-12-02 14:58:51,609 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 14:58:51,609 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 14:58:51,609 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 14:58:51,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 14:58:51,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-12-02 14:58:51,610 INFO L87 Difference]: Start difference. First operand 4075 states and 5881 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, (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 14:58:52,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 14:58:52,357 INFO L93 Difference]: Finished difference Result 6837 states and 9844 transitions. [2023-12-02 14:58:52,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 14:58:52,358 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, (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 137 [2023-12-02 14:58:52,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 14:58:52,370 INFO L225 Difference]: With dead ends: 6837 [2023-12-02 14:58:52,370 INFO L226 Difference]: Without dead ends: 4083 [2023-12-02 14:58:52,380 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 137 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 14:58:52,380 INFO L413 NwaCegarLoop]: 1075 mSDtfsCounter, 1147 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 178 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1147 SdHoareTripleChecker+Valid, 1139 SdHoareTripleChecker+Invalid, 179 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 178 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-02 14:58:52,381 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1147 Valid, 1139 Invalid, 179 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 178 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-02 14:58:52,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4083 states. [2023-12-02 14:58:52,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4083 to 4083. [2023-12-02 14:58:52,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4083 states, 2470 states have (on average 1.2983805668016195) internal successors, (3207), 2540 states have internal predecessors, (3207), 1221 states have call successors, (1221), 368 states have call predecessors, (1221), 374 states have return successors, (1454), 1188 states have call predecessors, (1454), 1219 states have call successors, (1454) [2023-12-02 14:58:52,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4083 states to 4083 states and 5882 transitions. [2023-12-02 14:58:52,785 INFO L78 Accepts]: Start accepts. Automaton has 4083 states and 5882 transitions. Word has length 137 [2023-12-02 14:58:52,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 14:58:52,785 INFO L495 AbstractCegarLoop]: Abstraction has 4083 states and 5882 transitions. [2023-12-02 14:58:52,785 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, (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 14:58:52,786 INFO L276 IsEmpty]: Start isEmpty. Operand 4083 states and 5882 transitions. [2023-12-02 14:58:52,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2023-12-02 14:58:52,788 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 14:58:52,788 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 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] [2023-12-02 14:58:52,798 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_901edc3c-7b54-4ce7-92a9-b90dad4ea131/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-02 14:58:52,988 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_901edc3c-7b54-4ce7-92a9-b90dad4ea131/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 14:58:52,989 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [get_1284_registerErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2023-12-02 14:58:52,989 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 14:58:52,989 INFO L85 PathProgramCache]: Analyzing trace with hash -1713733546, now seen corresponding path program 1 times [2023-12-02 14:58:52,989 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 14:58:52,989 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [87361342] [2023-12-02 14:58:52,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:58:52,990 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 14:58:53,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:58:53,310 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-12-02 14:58:53,310 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 14:58:53,310 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [87361342] [2023-12-02 14:58:53,311 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [87361342] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 14:58:53,311 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 14:58:53,311 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-02 14:58:53,311 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [534105456] [2023-12-02 14:58:53,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 14:58:53,311 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 14:58:53,312 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 14:58:53,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 14:58:53,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-02 14:58:53,313 INFO L87 Difference]: Start difference. First operand 4083 states and 5882 transitions. Second operand has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 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 14:58:54,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 14:58:54,435 INFO L93 Difference]: Finished difference Result 4083 states and 5882 transitions. [2023-12-02 14:58:54,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 14:58:54,436 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 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 110 [2023-12-02 14:58:54,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 14:58:54,448 INFO L225 Difference]: With dead ends: 4083 [2023-12-02 14:58:54,448 INFO L226 Difference]: Without dead ends: 4081 [2023-12-02 14:58:54,449 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 14:58:54,450 INFO L413 NwaCegarLoop]: 1046 mSDtfsCounter, 1173 mSDsluCounter, 1046 mSDsCounter, 0 mSdLazyCounter, 320 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1173 SdHoareTripleChecker+Valid, 2092 SdHoareTripleChecker+Invalid, 320 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 320 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-02 14:58:54,450 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1173 Valid, 2092 Invalid, 320 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 320 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-02 14:58:54,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4081 states. [2023-12-02 14:58:54,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4081 to 4081. [2023-12-02 14:58:54,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4081 states, 2469 states have (on average 1.2980963953017417) internal successors, (3205), 2538 states have internal predecessors, (3205), 1221 states have call successors, (1221), 368 states have call predecessors, (1221), 374 states have return successors, (1454), 1188 states have call predecessors, (1454), 1219 states have call successors, (1454) [2023-12-02 14:58:54,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4081 states to 4081 states and 5880 transitions. [2023-12-02 14:58:54,931 INFO L78 Accepts]: Start accepts. Automaton has 4081 states and 5880 transitions. Word has length 110 [2023-12-02 14:58:54,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 14:58:54,931 INFO L495 AbstractCegarLoop]: Abstraction has 4081 states and 5880 transitions. [2023-12-02 14:58:54,932 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 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 14:58:54,932 INFO L276 IsEmpty]: Start isEmpty. Operand 4081 states and 5880 transitions. [2023-12-02 14:58:54,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2023-12-02 14:58:54,934 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 14:58:54,934 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 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] [2023-12-02 14:58:54,934 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-12-02 14:58:54,934 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ldv_linux_kernel_rcu_srcu_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [get_1284_registerErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2023-12-02 14:58:54,934 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 14:58:54,935 INFO L85 PathProgramCache]: Analyzing trace with hash 718448092, now seen corresponding path program 1 times [2023-12-02 14:58:54,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 14:58:54,935 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1004390046] [2023-12-02 14:58:54,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:58:54,935 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 14:58:55,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:58:55,229 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-12-02 14:58:55,230 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 14:58:55,230 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1004390046] [2023-12-02 14:58:55,230 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1004390046] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 14:58:55,230 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 14:58:55,230 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-02 14:58:55,230 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1820809765] [2023-12-02 14:58:55,230 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 14:58:55,231 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 14:58:55,231 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 14:58:55,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 14:58:55,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-02 14:58:55,232 INFO L87 Difference]: Start difference. First operand 4081 states and 5880 transitions. Second operand has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 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 14:58:56,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 14:58:56,302 INFO L93 Difference]: Finished difference Result 4081 states and 5880 transitions. [2023-12-02 14:58:56,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 14:58:56,303 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 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 115 [2023-12-02 14:58:56,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 14:58:56,322 INFO L225 Difference]: With dead ends: 4081 [2023-12-02 14:58:56,322 INFO L226 Difference]: Without dead ends: 4079 [2023-12-02 14:58:56,323 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 14:58:56,324 INFO L413 NwaCegarLoop]: 1044 mSDtfsCounter, 1170 mSDsluCounter, 1044 mSDsCounter, 0 mSdLazyCounter, 320 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1170 SdHoareTripleChecker+Valid, 2088 SdHoareTripleChecker+Invalid, 320 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 320 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-02 14:58:56,324 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1170 Valid, 2088 Invalid, 320 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 320 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-02 14:58:56,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4079 states. [2023-12-02 14:58:56,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4079 to 4079. [2023-12-02 14:58:56,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4079 states, 2468 states have (on average 1.2978119935170178) internal successors, (3203), 2536 states have internal predecessors, (3203), 1221 states have call successors, (1221), 368 states have call predecessors, (1221), 374 states have return successors, (1454), 1188 states have call predecessors, (1454), 1219 states have call successors, (1454) [2023-12-02 14:58:56,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4079 states to 4079 states and 5878 transitions. [2023-12-02 14:58:56,780 INFO L78 Accepts]: Start accepts. Automaton has 4079 states and 5878 transitions. Word has length 115 [2023-12-02 14:58:56,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 14:58:56,781 INFO L495 AbstractCegarLoop]: Abstraction has 4079 states and 5878 transitions. [2023-12-02 14:58:56,781 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 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 14:58:56,781 INFO L276 IsEmpty]: Start isEmpty. Operand 4079 states and 5878 transitions. [2023-12-02 14:58:56,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2023-12-02 14:58:56,785 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 14:58:56,785 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 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] [2023-12-02 14:58:56,785 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-12-02 14:58:56,785 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ldv_linux_lib_idr_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [get_1284_registerErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2023-12-02 14:58:56,785 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 14:58:56,785 INFO L85 PathProgramCache]: Analyzing trace with hash -1652734809, now seen corresponding path program 1 times [2023-12-02 14:58:56,786 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 14:58:56,786 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1157644029] [2023-12-02 14:58:56,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:58:56,786 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 14:58:56,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:58:57,050 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-12-02 14:58:57,051 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 14:58:57,051 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1157644029] [2023-12-02 14:58:57,051 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1157644029] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 14:58:57,051 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 14:58:57,051 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-02 14:58:57,052 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1171656186] [2023-12-02 14:58:57,052 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 14:58:57,052 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 14:58:57,052 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 14:58:57,053 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 14:58:57,053 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-02 14:58:57,053 INFO L87 Difference]: Start difference. First operand 4079 states and 5878 transitions. Second operand has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 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 14:58:58,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 14:58:58,253 INFO L93 Difference]: Finished difference Result 4079 states and 5878 transitions. [2023-12-02 14:58:58,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 14:58:58,254 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 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 120 [2023-12-02 14:58:58,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 14:58:58,264 INFO L225 Difference]: With dead ends: 4079 [2023-12-02 14:58:58,264 INFO L226 Difference]: Without dead ends: 4077 [2023-12-02 14:58:58,265 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 14:58:58,266 INFO L413 NwaCegarLoop]: 1042 mSDtfsCounter, 1167 mSDsluCounter, 1042 mSDsCounter, 0 mSdLazyCounter, 320 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1167 SdHoareTripleChecker+Valid, 2084 SdHoareTripleChecker+Invalid, 320 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 320 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-02 14:58:58,266 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1167 Valid, 2084 Invalid, 320 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 320 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-02 14:58:58,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4077 states. [2023-12-02 14:58:58,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4077 to 4077. [2023-12-02 14:58:58,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4077 states, 2467 states have (on average 1.2975273611674099) internal successors, (3201), 2534 states have internal predecessors, (3201), 1221 states have call successors, (1221), 368 states have call predecessors, (1221), 374 states have return successors, (1454), 1188 states have call predecessors, (1454), 1219 states have call successors, (1454) [2023-12-02 14:58:58,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4077 states to 4077 states and 5876 transitions. [2023-12-02 14:58:58,839 INFO L78 Accepts]: Start accepts. Automaton has 4077 states and 5876 transitions. Word has length 120 [2023-12-02 14:58:58,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 14:58:58,840 INFO L495 AbstractCegarLoop]: Abstraction has 4077 states and 5876 transitions. [2023-12-02 14:58:58,840 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 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 14:58:58,840 INFO L276 IsEmpty]: Start isEmpty. Operand 4077 states and 5876 transitions. [2023-12-02 14:58:58,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2023-12-02 14:58:58,843 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 14:58:58,843 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-02 14:58:58,843 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-12-02 14:58:58,843 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting parport_generic_irqErr0ASSERT_VIOLATIONERROR_FUNCTION === [get_1284_registerErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2023-12-02 14:58:58,844 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 14:58:58,844 INFO L85 PathProgramCache]: Analyzing trace with hash 285622523, now seen corresponding path program 1 times [2023-12-02 14:58:58,844 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 14:58:58,844 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [986549291] [2023-12-02 14:58:58,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:58:58,844 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 14:58:58,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:58:59,275 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 77 trivial. 0 not checked. [2023-12-02 14:58:59,276 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 14:58:59,276 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [986549291] [2023-12-02 14:58:59,276 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [986549291] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 14:58:59,276 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 14:58:59,276 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-02 14:58:59,277 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [312087754] [2023-12-02 14:58:59,277 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 14:58:59,277 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 14:58:59,277 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 14:58:59,278 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 14:58:59,278 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-02 14:58:59,278 INFO L87 Difference]: Start difference. First operand 4077 states and 5876 transitions. Second operand has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-12-02 14:59:00,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 14:59:00,330 INFO L93 Difference]: Finished difference Result 4077 states and 5876 transitions. [2023-12-02 14:59:00,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 14:59:00,331 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 126 [2023-12-02 14:59:00,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 14:59:00,339 INFO L225 Difference]: With dead ends: 4077 [2023-12-02 14:59:00,339 INFO L226 Difference]: Without dead ends: 4075 [2023-12-02 14:59:00,340 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 14:59:00,340 INFO L413 NwaCegarLoop]: 1040 mSDtfsCounter, 1134 mSDsluCounter, 1040 mSDsCounter, 0 mSdLazyCounter, 320 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1134 SdHoareTripleChecker+Valid, 2080 SdHoareTripleChecker+Invalid, 320 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 320 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-02 14:59:00,340 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1134 Valid, 2080 Invalid, 320 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 320 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-02 14:59:00,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4075 states. [2023-12-02 14:59:00,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4075 to 4075. [2023-12-02 14:59:00,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4075 states, 2466 states have (on average 1.2964314679643147) internal successors, (3197), 2532 states have internal predecessors, (3197), 1221 states have call successors, (1221), 368 states have call predecessors, (1221), 374 states have return successors, (1454), 1188 states have call predecessors, (1454), 1219 states have call successors, (1454) [2023-12-02 14:59:00,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4075 states to 4075 states and 5872 transitions. [2023-12-02 14:59:00,766 INFO L78 Accepts]: Start accepts. Automaton has 4075 states and 5872 transitions. Word has length 126 [2023-12-02 14:59:00,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 14:59:00,767 INFO L495 AbstractCegarLoop]: Abstraction has 4075 states and 5872 transitions. [2023-12-02 14:59:00,767 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-12-02 14:59:00,767 INFO L276 IsEmpty]: Start isEmpty. Operand 4075 states and 5872 transitions. [2023-12-02 14:59:00,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2023-12-02 14:59:00,769 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 14:59:00,769 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 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] [2023-12-02 14:59:00,769 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-12-02 14:59:00,770 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting destroy_asyncErr0ASSERT_VIOLATIONERROR_FUNCTION === [get_1284_registerErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2023-12-02 14:59:00,770 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 14:59:00,770 INFO L85 PathProgramCache]: Analyzing trace with hash -433371279, now seen corresponding path program 1 times [2023-12-02 14:59:00,770 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 14:59:00,770 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [21133900] [2023-12-02 14:59:00,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:59:00,770 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 14:59:00,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:59:01,261 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2023-12-02 14:59:01,261 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 14:59:01,262 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [21133900] [2023-12-02 14:59:01,262 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [21133900] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 14:59:01,262 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 14:59:01,262 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-02 14:59:01,262 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1383402082] [2023-12-02 14:59:01,262 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 14:59:01,262 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-02 14:59:01,263 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 14:59:01,263 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-02 14:59:01,263 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-02 14:59:01,263 INFO L87 Difference]: Start difference. First operand 4075 states and 5872 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, (26), 2 states have call predecessors, (26), 2 states have return successors, (21), 3 states have call predecessors, (21), 2 states have call successors, (21) [2023-12-02 14:59:02,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 14:59:02,752 INFO L93 Difference]: Finished difference Result 8031 states and 12343 transitions. [2023-12-02 14:59:02,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-02 14:59:02,752 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, (26), 2 states have call predecessors, (26), 2 states have return successors, (21), 3 states have call predecessors, (21), 2 states have call successors, (21) Word has length 124 [2023-12-02 14:59:02,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 14:59:02,765 INFO L225 Difference]: With dead ends: 8031 [2023-12-02 14:59:02,765 INFO L226 Difference]: Without dead ends: 4111 [2023-12-02 14:59:02,783 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 14:59:02,783 INFO L413 NwaCegarLoop]: 1056 mSDtfsCounter, 3 mSDsluCounter, 3158 mSDsCounter, 0 mSdLazyCounter, 647 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 4214 SdHoareTripleChecker+Invalid, 652 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 647 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-12-02 14:59:02,784 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 4214 Invalid, 652 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 647 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-12-02 14:59:02,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4111 states. [2023-12-02 14:59:03,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4111 to 4087. [2023-12-02 14:59:03,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4087 states, 2478 states have (on average 1.29499596448749) internal successors, (3209), 2538 states have internal predecessors, (3209), 1221 states have call successors, (1221), 368 states have call predecessors, (1221), 374 states have return successors, (1454), 1194 states have call predecessors, (1454), 1219 states have call successors, (1454) [2023-12-02 14:59:03,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4087 states to 4087 states and 5884 transitions. [2023-12-02 14:59:03,233 INFO L78 Accepts]: Start accepts. Automaton has 4087 states and 5884 transitions. Word has length 124 [2023-12-02 14:59:03,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 14:59:03,234 INFO L495 AbstractCegarLoop]: Abstraction has 4087 states and 5884 transitions. [2023-12-02 14:59:03,234 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, (26), 2 states have call predecessors, (26), 2 states have return successors, (21), 3 states have call predecessors, (21), 2 states have call successors, (21) [2023-12-02 14:59:03,234 INFO L276 IsEmpty]: Start isEmpty. Operand 4087 states and 5884 transitions. [2023-12-02 14:59:03,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2023-12-02 14:59:03,237 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 14:59:03,237 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 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] [2023-12-02 14:59:03,238 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2023-12-02 14:59:03,238 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ldv_linux_mmc_sdio_func_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [get_1284_registerErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2023-12-02 14:59:03,238 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 14:59:03,238 INFO L85 PathProgramCache]: Analyzing trace with hash -2036246965, now seen corresponding path program 1 times [2023-12-02 14:59:03,238 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 14:59:03,238 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1119911077] [2023-12-02 14:59:03,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:59:03,239 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 14:59:03,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:59:03,644 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-12-02 14:59:03,644 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 14:59:03,644 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1119911077] [2023-12-02 14:59:03,644 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1119911077] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 14:59:03,644 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 14:59:03,645 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-02 14:59:03,645 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2053557809] [2023-12-02 14:59:03,645 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 14:59:03,645 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 14:59:03,645 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 14:59:03,646 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 14:59:03,646 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-02 14:59:03,646 INFO L87 Difference]: Start difference. First operand 4087 states and 5884 transitions. Second operand has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 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 14:59:04,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 14:59:04,896 INFO L93 Difference]: Finished difference Result 4087 states and 5884 transitions. [2023-12-02 14:59:04,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 14:59:04,897 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 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 125 [2023-12-02 14:59:04,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 14:59:04,909 INFO L225 Difference]: With dead ends: 4087 [2023-12-02 14:59:04,910 INFO L226 Difference]: Without dead ends: 4085 [2023-12-02 14:59:04,911 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 14:59:04,912 INFO L413 NwaCegarLoop]: 1038 mSDtfsCounter, 1162 mSDsluCounter, 1038 mSDsCounter, 0 mSdLazyCounter, 320 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1162 SdHoareTripleChecker+Valid, 2076 SdHoareTripleChecker+Invalid, 320 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 320 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-02 14:59:04,912 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1162 Valid, 2076 Invalid, 320 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 320 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-02 14:59:04,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4085 states. [2023-12-02 14:59:05,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4085 to 4085. [2023-12-02 14:59:05,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4085 states, 2477 states have (on average 1.2947113443681872) internal successors, (3207), 2536 states have internal predecessors, (3207), 1221 states have call successors, (1221), 368 states have call predecessors, (1221), 374 states have return successors, (1454), 1194 states have call predecessors, (1454), 1219 states have call successors, (1454) [2023-12-02 14:59:05,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4085 states to 4085 states and 5882 transitions. [2023-12-02 14:59:05,392 INFO L78 Accepts]: Start accepts. Automaton has 4085 states and 5882 transitions. Word has length 125 [2023-12-02 14:59:05,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 14:59:05,393 INFO L495 AbstractCegarLoop]: Abstraction has 4085 states and 5882 transitions. [2023-12-02 14:59:05,393 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 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 14:59:05,393 INFO L276 IsEmpty]: Start isEmpty. Operand 4085 states and 5882 transitions. [2023-12-02 14:59:05,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2023-12-02 14:59:05,395 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 14:59:05,395 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 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] [2023-12-02 14:59:05,395 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2023-12-02 14:59:05,395 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ldv_linux_net_rtnetlink_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [get_1284_registerErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2023-12-02 14:59:05,396 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 14:59:05,396 INFO L85 PathProgramCache]: Analyzing trace with hash -460865765, now seen corresponding path program 1 times [2023-12-02 14:59:05,396 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 14:59:05,396 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1029560163] [2023-12-02 14:59:05,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:59:05,396 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 14:59:05,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:59:05,686 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-12-02 14:59:05,686 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 14:59:05,686 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1029560163] [2023-12-02 14:59:05,686 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1029560163] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 14:59:05,686 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 14:59:05,686 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-02 14:59:05,687 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1311723900] [2023-12-02 14:59:05,687 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 14:59:05,687 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 14:59:05,687 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 14:59:05,688 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 14:59:05,688 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-02 14:59:05,688 INFO L87 Difference]: Start difference. First operand 4085 states and 5882 transitions. Second operand has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 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 14:59:06,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 14:59:06,802 INFO L93 Difference]: Finished difference Result 4085 states and 5882 transitions. [2023-12-02 14:59:06,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 14:59:06,803 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 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 130 [2023-12-02 14:59:06,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 14:59:06,814 INFO L225 Difference]: With dead ends: 4085 [2023-12-02 14:59:06,814 INFO L226 Difference]: Without dead ends: 4083 [2023-12-02 14:59:06,815 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 14:59:06,816 INFO L413 NwaCegarLoop]: 1036 mSDtfsCounter, 1159 mSDsluCounter, 1036 mSDsCounter, 0 mSdLazyCounter, 320 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1159 SdHoareTripleChecker+Valid, 2072 SdHoareTripleChecker+Invalid, 320 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 320 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-02 14:59:06,816 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1159 Valid, 2072 Invalid, 320 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 320 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-02 14:59:06,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4083 states. [2023-12-02 14:59:07,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4083 to 4083. [2023-12-02 14:59:07,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4083 states, 2476 states have (on average 1.2944264943457189) internal successors, (3205), 2534 states have internal predecessors, (3205), 1221 states have call successors, (1221), 368 states have call predecessors, (1221), 374 states have return successors, (1454), 1194 states have call predecessors, (1454), 1219 states have call successors, (1454) [2023-12-02 14:59:07,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4083 states to 4083 states and 5880 transitions. [2023-12-02 14:59:07,281 INFO L78 Accepts]: Start accepts. Automaton has 4083 states and 5880 transitions. Word has length 130 [2023-12-02 14:59:07,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 14:59:07,281 INFO L495 AbstractCegarLoop]: Abstraction has 4083 states and 5880 transitions. [2023-12-02 14:59:07,282 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 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 14:59:07,282 INFO L276 IsEmpty]: Start isEmpty. Operand 4083 states and 5880 transitions. [2023-12-02 14:59:07,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2023-12-02 14:59:07,284 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 14:59:07,284 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 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] [2023-12-02 14:59:07,284 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2023-12-02 14:59:07,284 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ldv_linux_net_sock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [get_1284_registerErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2023-12-02 14:59:07,285 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 14:59:07,285 INFO L85 PathProgramCache]: Analyzing trace with hash -1012280665, now seen corresponding path program 1 times [2023-12-02 14:59:07,285 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 14:59:07,285 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [961197974] [2023-12-02 14:59:07,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:59:07,285 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 14:59:07,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:59:07,599 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-12-02 14:59:07,599 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 14:59:07,599 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [961197974] [2023-12-02 14:59:07,599 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [961197974] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 14:59:07,599 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 14:59:07,599 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-02 14:59:07,599 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1142423512] [2023-12-02 14:59:07,600 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 14:59:07,600 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 14:59:07,600 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 14:59:07,601 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 14:59:07,601 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-02 14:59:07,601 INFO L87 Difference]: Start difference. First operand 4083 states and 5880 transitions. Second operand has 4 states, 4 states have (on average 18.5) internal successors, (74), 4 states have internal predecessors, (74), 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 14:59:08,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 14:59:08,607 INFO L93 Difference]: Finished difference Result 4083 states and 5880 transitions. [2023-12-02 14:59:08,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 14:59:08,608 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.5) internal successors, (74), 4 states have internal predecessors, (74), 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 135 [2023-12-02 14:59:08,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 14:59:08,620 INFO L225 Difference]: With dead ends: 4083 [2023-12-02 14:59:08,620 INFO L226 Difference]: Without dead ends: 4081 [2023-12-02 14:59:08,622 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 14:59:08,622 INFO L413 NwaCegarLoop]: 1034 mSDtfsCounter, 1156 mSDsluCounter, 1034 mSDsCounter, 0 mSdLazyCounter, 320 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1156 SdHoareTripleChecker+Valid, 2068 SdHoareTripleChecker+Invalid, 320 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 320 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-02 14:59:08,622 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1156 Valid, 2068 Invalid, 320 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 320 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-02 14:59:08,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4081 states. [2023-12-02 14:59:09,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4081 to 4081. [2023-12-02 14:59:09,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4081 states, 2475 states have (on average 1.294141414141414) internal successors, (3203), 2532 states have internal predecessors, (3203), 1221 states have call successors, (1221), 368 states have call predecessors, (1221), 374 states have return successors, (1454), 1194 states have call predecessors, (1454), 1219 states have call successors, (1454) [2023-12-02 14:59:09,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4081 states to 4081 states and 5878 transitions. [2023-12-02 14:59:09,195 INFO L78 Accepts]: Start accepts. Automaton has 4081 states and 5878 transitions. Word has length 135 [2023-12-02 14:59:09,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 14:59:09,195 INFO L495 AbstractCegarLoop]: Abstraction has 4081 states and 5878 transitions. [2023-12-02 14:59:09,195 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.5) internal successors, (74), 4 states have internal predecessors, (74), 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 14:59:09,195 INFO L276 IsEmpty]: Start isEmpty. Operand 4081 states and 5878 transitions. [2023-12-02 14:59:09,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2023-12-02 14:59:09,198 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 14:59:09,198 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 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] [2023-12-02 14:59:09,198 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2023-12-02 14:59:09,198 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [get_1284_registerErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2023-12-02 14:59:09,198 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 14:59:09,198 INFO L85 PathProgramCache]: Analyzing trace with hash -51242167, now seen corresponding path program 1 times [2023-12-02 14:59:09,198 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 14:59:09,199 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [822696784] [2023-12-02 14:59:09,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:59:09,199 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 14:59:09,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:59:09,426 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-12-02 14:59:09,427 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 14:59:09,427 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [822696784] [2023-12-02 14:59:09,427 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [822696784] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 14:59:09,427 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 14:59:09,427 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-02 14:59:09,427 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1387995848] [2023-12-02 14:59:09,427 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 14:59:09,428 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 14:59:09,428 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 14:59:09,428 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 14:59:09,428 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-02 14:59:09,429 INFO L87 Difference]: Start difference. First operand 4081 states and 5878 transitions. Second operand has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 2 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2023-12-02 14:59:10,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 14:59:10,634 INFO L93 Difference]: Finished difference Result 4081 states and 5878 transitions. [2023-12-02 14:59:10,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 14:59:10,635 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 2 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 140 [2023-12-02 14:59:10,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 14:59:10,647 INFO L225 Difference]: With dead ends: 4081 [2023-12-02 14:59:10,647 INFO L226 Difference]: Without dead ends: 4079 [2023-12-02 14:59:10,648 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 14:59:10,649 INFO L413 NwaCegarLoop]: 1032 mSDtfsCounter, 1153 mSDsluCounter, 1032 mSDsCounter, 0 mSdLazyCounter, 320 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1153 SdHoareTripleChecker+Valid, 2064 SdHoareTripleChecker+Invalid, 320 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 320 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-02 14:59:10,649 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1153 Valid, 2064 Invalid, 320 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 320 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-02 14:59:10,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4079 states. [2023-12-02 14:59:11,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4079 to 4079. [2023-12-02 14:59:11,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4079 states, 2474 states have (on average 1.293856103476152) internal successors, (3201), 2530 states have internal predecessors, (3201), 1221 states have call successors, (1221), 368 states have call predecessors, (1221), 374 states have return successors, (1454), 1194 states have call predecessors, (1454), 1219 states have call successors, (1454) [2023-12-02 14:59:11,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4079 states to 4079 states and 5876 transitions. [2023-12-02 14:59:11,151 INFO L78 Accepts]: Start accepts. Automaton has 4079 states and 5876 transitions. Word has length 140 [2023-12-02 14:59:11,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 14:59:11,151 INFO L495 AbstractCegarLoop]: Abstraction has 4079 states and 5876 transitions. [2023-12-02 14:59:11,151 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 2 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2023-12-02 14:59:11,151 INFO L276 IsEmpty]: Start isEmpty. Operand 4079 states and 5876 transitions. [2023-12-02 14:59:11,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2023-12-02 14:59:11,154 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 14:59:11,154 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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] [2023-12-02 14:59:11,154 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2023-12-02 14:59:11,154 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ldv_linux_usb_dev_usb_put_devErr0ASSERT_VIOLATIONERROR_FUNCTION === [get_1284_registerErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2023-12-02 14:59:11,154 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 14:59:11,155 INFO L85 PathProgramCache]: Analyzing trace with hash -1246490080, now seen corresponding path program 1 times [2023-12-02 14:59:11,155 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 14:59:11,155 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [664863290] [2023-12-02 14:59:11,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:59:11,155 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 14:59:11,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:59:12,258 INFO L134 CoverageAnalysis]: Checked inductivity of 296 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 296 trivial. 0 not checked. [2023-12-02 14:59:12,258 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 14:59:12,258 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [664863290] [2023-12-02 14:59:12,259 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [664863290] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 14:59:12,259 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 14:59:12,259 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-02 14:59:12,259 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1924211622] [2023-12-02 14:59:12,259 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 14:59:12,259 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-02 14:59:12,260 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 14:59:12,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-02 14:59:12,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-02 14:59:12,260 INFO L87 Difference]: Start difference. First operand 4079 states and 5876 transitions. Second operand has 8 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 4 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2023-12-02 14:59:17,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 14:59:17,095 INFO L93 Difference]: Finished difference Result 4244 states and 6052 transitions. [2023-12-02 14:59:17,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-02 14:59:17,096 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 4 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) Word has length 170 [2023-12-02 14:59:17,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 14:59:17,104 INFO L225 Difference]: With dead ends: 4244 [2023-12-02 14:59:17,104 INFO L226 Difference]: Without dead ends: 4242 [2023-12-02 14:59:17,105 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2023-12-02 14:59:17,106 INFO L413 NwaCegarLoop]: 1101 mSDtfsCounter, 1050 mSDsluCounter, 4458 mSDsCounter, 0 mSdLazyCounter, 3229 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1057 SdHoareTripleChecker+Valid, 5559 SdHoareTripleChecker+Invalid, 3236 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 3229 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2023-12-02 14:59:17,106 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1057 Valid, 5559 Invalid, 3236 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 3229 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2023-12-02 14:59:17,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4242 states. [2023-12-02 14:59:17,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4242 to 4086. [2023-12-02 14:59:17,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4086 states, 2479 states have (on average 1.2936668011294876) internal successors, (3207), 2536 states have internal predecessors, (3207), 1221 states have call successors, (1221), 369 states have call predecessors, (1221), 376 states have return successors, (1456), 1194 states have call predecessors, (1456), 1219 states have call successors, (1456) [2023-12-02 14:59:17,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4086 states to 4086 states and 5884 transitions. [2023-12-02 14:59:17,607 INFO L78 Accepts]: Start accepts. Automaton has 4086 states and 5884 transitions. Word has length 170 [2023-12-02 14:59:17,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 14:59:17,608 INFO L495 AbstractCegarLoop]: Abstraction has 4086 states and 5884 transitions. [2023-12-02 14:59:17,608 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 4 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2023-12-02 14:59:17,608 INFO L276 IsEmpty]: Start isEmpty. Operand 4086 states and 5884 transitions. [2023-12-02 14:59:17,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-12-02 14:59:17,612 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 14:59:17,612 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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] [2023-12-02 14:59:17,612 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2023-12-02 14:59:17,612 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ldv_linux_usb_dev_usb_put_devErr1ASSERT_VIOLATIONERROR_FUNCTION === [get_1284_registerErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2023-12-02 14:59:17,612 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 14:59:17,613 INFO L85 PathProgramCache]: Analyzing trace with hash 419052035, now seen corresponding path program 1 times [2023-12-02 14:59:17,613 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 14:59:17,613 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [360582912] [2023-12-02 14:59:17,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:59:17,613 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 14:59:17,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:59:18,678 INFO L134 CoverageAnalysis]: Checked inductivity of 296 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 296 trivial. 0 not checked. [2023-12-02 14:59:18,678 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 14:59:18,679 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [360582912] [2023-12-02 14:59:18,679 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [360582912] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 14:59:18,679 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 14:59:18,679 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-02 14:59:18,679 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1917373533] [2023-12-02 14:59:18,679 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 14:59:18,679 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-02 14:59:18,679 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 14:59:18,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-02 14:59:18,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2023-12-02 14:59:18,680 INFO L87 Difference]: Start difference. First operand 4086 states and 5884 transitions. Second operand has 9 states, 8 states have (on average 7.25) internal successors, (58), 8 states have internal predecessors, (58), 4 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2023-12-02 14:59:23,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 14:59:23,669 INFO L93 Difference]: Finished difference Result 5564 states and 7966 transitions. [2023-12-02 14:59:23,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-02 14:59:23,670 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 7.25) internal successors, (58), 8 states have internal predecessors, (58), 4 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) Word has length 172 [2023-12-02 14:59:23,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 14:59:23,682 INFO L225 Difference]: With dead ends: 5564 [2023-12-02 14:59:23,682 INFO L226 Difference]: Without dead ends: 5562 [2023-12-02 14:59:23,683 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2023-12-02 14:59:23,684 INFO L413 NwaCegarLoop]: 1166 mSDtfsCounter, 1108 mSDsluCounter, 4650 mSDsCounter, 0 mSdLazyCounter, 3422 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1115 SdHoareTripleChecker+Valid, 5816 SdHoareTripleChecker+Invalid, 3428 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 3422 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2023-12-02 14:59:23,684 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1115 Valid, 5816 Invalid, 3428 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 3422 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2023-12-02 14:59:23,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5562 states. [2023-12-02 14:59:24,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5562 to 5355. [2023-12-02 14:59:24,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5355 states, 3255 states have (on average 1.297388632872504) internal successors, (4223), 3325 states have internal predecessors, (4223), 1601 states have call successors, (1601), 480 states have call predecessors, (1601), 489 states have return successors, (1914), 1567 states have call predecessors, (1914), 1599 states have call successors, (1914) [2023-12-02 14:59:24,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5355 states to 5355 states and 7738 transitions. [2023-12-02 14:59:24,374 INFO L78 Accepts]: Start accepts. Automaton has 5355 states and 7738 transitions. Word has length 172 [2023-12-02 14:59:24,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 14:59:24,374 INFO L495 AbstractCegarLoop]: Abstraction has 5355 states and 7738 transitions. [2023-12-02 14:59:24,375 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 7.25) internal successors, (58), 8 states have internal predecessors, (58), 4 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2023-12-02 14:59:24,375 INFO L276 IsEmpty]: Start isEmpty. Operand 5355 states and 7738 transitions. [2023-12-02 14:59:24,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2023-12-02 14:59:24,377 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 14:59:24,377 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 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] [2023-12-02 14:59:24,378 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2023-12-02 14:59:24,378 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [get_1284_registerErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2023-12-02 14:59:24,378 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 14:59:24,378 INFO L85 PathProgramCache]: Analyzing trace with hash 1560402420, now seen corresponding path program 1 times [2023-12-02 14:59:24,378 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 14:59:24,378 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [984795400] [2023-12-02 14:59:24,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:59:24,379 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 14:59:24,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:59:24,606 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-12-02 14:59:24,606 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 14:59:24,606 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [984795400] [2023-12-02 14:59:24,606 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [984795400] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 14:59:24,607 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 14:59:24,607 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-02 14:59:24,607 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [230216555] [2023-12-02 14:59:24,607 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 14:59:24,607 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 14:59:24,607 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 14:59:24,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 14:59:24,608 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-02 14:59:24,608 INFO L87 Difference]: Start difference. First operand 5355 states and 7738 transitions. Second operand has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2023-12-02 14:59:25,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 14:59:25,955 INFO L93 Difference]: Finished difference Result 5355 states and 7738 transitions. [2023-12-02 14:59:25,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 14:59:25,956 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 145 [2023-12-02 14:59:25,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 14:59:25,967 INFO L225 Difference]: With dead ends: 5355 [2023-12-02 14:59:25,967 INFO L226 Difference]: Without dead ends: 5353 [2023-12-02 14:59:25,968 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 14:59:25,969 INFO L413 NwaCegarLoop]: 1030 mSDtfsCounter, 1150 mSDsluCounter, 1030 mSDsCounter, 0 mSdLazyCounter, 320 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1150 SdHoareTripleChecker+Valid, 2060 SdHoareTripleChecker+Invalid, 320 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 320 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-02 14:59:25,969 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1150 Valid, 2060 Invalid, 320 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 320 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-02 14:59:25,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5353 states. [2023-12-02 14:59:26,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5353 to 5353. [2023-12-02 14:59:26,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5353 states, 3254 states have (on average 1.2971727105101414) internal successors, (4221), 3323 states have internal predecessors, (4221), 1601 states have call successors, (1601), 480 states have call predecessors, (1601), 489 states have return successors, (1914), 1567 states have call predecessors, (1914), 1599 states have call successors, (1914) [2023-12-02 14:59:26,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5353 states to 5353 states and 7736 transitions. [2023-12-02 14:59:26,673 INFO L78 Accepts]: Start accepts. Automaton has 5353 states and 7736 transitions. Word has length 145 [2023-12-02 14:59:26,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 14:59:26,673 INFO L495 AbstractCegarLoop]: Abstraction has 5353 states and 7736 transitions. [2023-12-02 14:59:26,673 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2023-12-02 14:59:26,673 INFO L276 IsEmpty]: Start isEmpty. Operand 5353 states and 7736 transitions. [2023-12-02 14:59:26,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2023-12-02 14:59:26,676 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 14:59:26,676 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 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] [2023-12-02 14:59:26,676 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2023-12-02 14:59:26,677 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ldv_linux_usb_urb_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [get_1284_registerErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2023-12-02 14:59:26,677 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 14:59:26,677 INFO L85 PathProgramCache]: Analyzing trace with hash -1734157743, now seen corresponding path program 1 times [2023-12-02 14:59:26,677 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 14:59:26,677 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [625028137] [2023-12-02 14:59:26,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:59:26,677 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 14:59:26,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:59:26,907 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-12-02 14:59:26,907 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 14:59:26,907 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [625028137] [2023-12-02 14:59:26,907 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [625028137] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 14:59:26,907 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 14:59:26,907 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-02 14:59:26,908 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [719934109] [2023-12-02 14:59:26,908 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 14:59:26,908 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 14:59:26,908 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 14:59:26,909 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 14:59:26,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-02 14:59:26,909 INFO L87 Difference]: Start difference. First operand 5353 states and 7736 transitions. Second operand has 4 states, 4 states have (on average 20.75) internal successors, (83), 4 states have internal predecessors, (83), 2 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2023-12-02 14:59:29,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 14:59:29,080 INFO L93 Difference]: Finished difference Result 9283 states and 13868 transitions. [2023-12-02 14:59:29,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 14:59:29,081 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.75) internal successors, (83), 4 states have internal predecessors, (83), 2 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) Word has length 150 [2023-12-02 14:59:29,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 14:59:29,106 INFO L225 Difference]: With dead ends: 9283 [2023-12-02 14:59:29,106 INFO L226 Difference]: Without dead ends: 9151 [2023-12-02 14:59:29,111 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 14:59:29,111 INFO L413 NwaCegarLoop]: 1254 mSDtfsCounter, 1053 mSDsluCounter, 2226 mSDsCounter, 0 mSdLazyCounter, 529 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1053 SdHoareTripleChecker+Valid, 3480 SdHoareTripleChecker+Invalid, 529 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 529 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-02 14:59:29,112 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1053 Valid, 3480 Invalid, 529 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 529 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-02 14:59:29,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9151 states. [2023-12-02 14:59:30,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9151 to 9114. [2023-12-02 14:59:30,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9114 states, 5560 states have (on average 1.3005395683453238) internal successors, (7231), 5676 states have internal predecessors, (7231), 2685 states have call successors, (2685), 852 states have call predecessors, (2685), 860 states have return successors, (3748), 2614 states have call predecessors, (3748), 2681 states have call successors, (3748) [2023-12-02 14:59:30,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9114 states to 9114 states and 13664 transitions. [2023-12-02 14:59:30,310 INFO L78 Accepts]: Start accepts. Automaton has 9114 states and 13664 transitions. Word has length 150 [2023-12-02 14:59:30,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 14:59:30,310 INFO L495 AbstractCegarLoop]: Abstraction has 9114 states and 13664 transitions. [2023-12-02 14:59:30,310 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.75) internal successors, (83), 4 states have internal predecessors, (83), 2 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2023-12-02 14:59:30,310 INFO L276 IsEmpty]: Start isEmpty. Operand 9114 states and 13664 transitions. [2023-12-02 14:59:30,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2023-12-02 14:59:30,313 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 14:59:30,314 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 14:59:30,314 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2023-12-02 14:59:30,314 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [get_1284_registerErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2023-12-02 14:59:30,314 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 14:59:30,314 INFO L85 PathProgramCache]: Analyzing trace with hash -1006062439, now seen corresponding path program 1 times [2023-12-02 14:59:30,314 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 14:59:30,314 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1166823255] [2023-12-02 14:59:30,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:59:30,314 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 14:59:30,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:59:30,854 INFO L134 CoverageAnalysis]: Checked inductivity of 385 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 385 trivial. 0 not checked. [2023-12-02 14:59:30,855 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 14:59:30,855 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1166823255] [2023-12-02 14:59:30,855 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1166823255] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 14:59:30,855 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 14:59:30,855 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-02 14:59:30,855 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1843194678] [2023-12-02 14:59:30,855 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 14:59:30,856 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-02 14:59:30,856 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 14:59:30,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-02 14:59:30,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-02 14:59:30,857 INFO L87 Difference]: Start difference. First operand 9114 states and 13664 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (31), 3 states have call predecessors, (31), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2023-12-02 14:59:32,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 14:59:32,829 INFO L93 Difference]: Finished difference Result 9184 states and 13706 transitions. [2023-12-02 14:59:32,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-02 14:59:32,829 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (31), 3 states have call predecessors, (31), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 192 [2023-12-02 14:59:32,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 14:59:32,852 INFO L225 Difference]: With dead ends: 9184 [2023-12-02 14:59:32,852 INFO L226 Difference]: Without dead ends: 9182 [2023-12-02 14:59:32,856 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 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 14:59:32,856 INFO L413 NwaCegarLoop]: 1026 mSDtfsCounter, 1093 mSDsluCounter, 2072 mSDsCounter, 0 mSdLazyCounter, 497 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1094 SdHoareTripleChecker+Valid, 3098 SdHoareTripleChecker+Invalid, 498 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 497 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-02 14:59:32,856 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1094 Valid, 3098 Invalid, 498 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 497 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-02 14:59:32,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9182 states. [2023-12-02 14:59:34,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9182 to 9182. [2023-12-02 14:59:34,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9182 states, 5601 states have (on average 1.2958400285663274) internal successors, (7258), 5716 states have internal predecessors, (7258), 2685 states have call successors, (2685), 880 states have call predecessors, (2685), 888 states have return successors, (3748), 2614 states have call predecessors, (3748), 2681 states have call successors, (3748) [2023-12-02 14:59:34,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9182 states to 9182 states and 13691 transitions. [2023-12-02 14:59:34,151 INFO L78 Accepts]: Start accepts. Automaton has 9182 states and 13691 transitions. Word has length 192 [2023-12-02 14:59:34,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 14:59:34,152 INFO L495 AbstractCegarLoop]: Abstraction has 9182 states and 13691 transitions. [2023-12-02 14:59:34,152 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (31), 3 states have call predecessors, (31), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2023-12-02 14:59:34,152 INFO L276 IsEmpty]: Start isEmpty. Operand 9182 states and 13691 transitions. [2023-12-02 14:59:34,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2023-12-02 14:59:34,155 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 14:59:34,155 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 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] [2023-12-02 14:59:34,155 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2023-12-02 14:59:34,155 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [get_1284_registerErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2023-12-02 14:59:34,156 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 14:59:34,156 INFO L85 PathProgramCache]: Analyzing trace with hash -1642171537, now seen corresponding path program 1 times [2023-12-02 14:59:34,156 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 14:59:34,156 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1992173250] [2023-12-02 14:59:34,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:59:34,156 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 14:59:34,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:59:34,534 INFO L134 CoverageAnalysis]: Checked inductivity of 338 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 338 trivial. 0 not checked. [2023-12-02 14:59:34,534 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 14:59:34,534 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1992173250] [2023-12-02 14:59:34,534 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1992173250] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 14:59:34,534 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 14:59:34,535 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-02 14:59:34,535 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [963154604] [2023-12-02 14:59:34,535 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 14:59:34,535 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-02 14:59:34,535 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 14:59:34,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-02 14:59:34,536 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-02 14:59:34,536 INFO L87 Difference]: Start difference. First operand 9182 states and 13691 transitions. Second operand has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (36), 3 states have call predecessors, (36), 2 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2023-12-02 14:59:36,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 14:59:36,951 INFO L93 Difference]: Finished difference Result 9182 states and 13691 transitions. [2023-12-02 14:59:36,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-02 14:59:36,952 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (36), 3 states have call predecessors, (36), 2 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) Word has length 213 [2023-12-02 14:59:36,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 14:59:37,016 INFO L225 Difference]: With dead ends: 9182 [2023-12-02 14:59:37,017 INFO L226 Difference]: Without dead ends: 9180 [2023-12-02 14:59:37,021 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 14:59:37,021 INFO L413 NwaCegarLoop]: 1025 mSDtfsCounter, 30 mSDsluCounter, 3045 mSDsCounter, 0 mSdLazyCounter, 650 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 4070 SdHoareTripleChecker+Invalid, 650 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 650 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-12-02 14:59:37,022 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 4070 Invalid, 650 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 650 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-12-02 14:59:37,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9180 states. [2023-12-02 14:59:38,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9180 to 9180. [2023-12-02 14:59:38,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9180 states, 5600 states have (on average 1.2933928571428572) internal successors, (7243), 5714 states have internal predecessors, (7243), 2685 states have call successors, (2685), 880 states have call predecessors, (2685), 888 states have return successors, (3748), 2614 states have call predecessors, (3748), 2681 states have call successors, (3748) [2023-12-02 14:59:38,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9180 states to 9180 states and 13676 transitions. [2023-12-02 14:59:38,475 INFO L78 Accepts]: Start accepts. Automaton has 9180 states and 13676 transitions. Word has length 213 [2023-12-02 14:59:38,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 14:59:38,475 INFO L495 AbstractCegarLoop]: Abstraction has 9180 states and 13676 transitions. [2023-12-02 14:59:38,476 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (36), 3 states have call predecessors, (36), 2 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2023-12-02 14:59:38,476 INFO L276 IsEmpty]: Start isEmpty. Operand 9180 states and 13676 transitions. [2023-12-02 14:59:38,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2023-12-02 14:59:38,480 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 14:59:38,480 INFO L195 NwaCegarLoop]: trace histogram [8, 7, 7, 5, 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] [2023-12-02 14:59:38,480 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2023-12-02 14:59:38,481 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting destroy_asyncErr0ASSERT_VIOLATIONERROR_FUNCTION === [get_1284_registerErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2023-12-02 14:59:38,481 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 14:59:38,481 INFO L85 PathProgramCache]: Analyzing trace with hash 1224443463, now seen corresponding path program 1 times [2023-12-02 14:59:38,481 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 14:59:38,481 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1966975964] [2023-12-02 14:59:38,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:59:38,481 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 14:59:38,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:59:39,309 INFO L134 CoverageAnalysis]: Checked inductivity of 153 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 153 trivial. 0 not checked. [2023-12-02 14:59:39,309 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 14:59:39,309 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1966975964] [2023-12-02 14:59:39,309 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1966975964] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 14:59:39,310 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 14:59:39,310 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-02 14:59:39,310 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [426909402] [2023-12-02 14:59:39,310 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 14:59:39,310 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-02 14:59:39,311 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 14:59:39,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-02 14:59:39,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-12-02 14:59:39,312 INFO L87 Difference]: Start difference. First operand 9180 states and 13676 transitions. Second operand has 9 states, 7 states have (on average 13.285714285714286) internal successors, (93), 7 states have internal predecessors, (93), 3 states have call successors, (45), 2 states have call predecessors, (45), 3 states have return successors, (39), 5 states have call predecessors, (39), 3 states have call successors, (39) [2023-12-02 14:59:42,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 14:59:42,538 INFO L93 Difference]: Finished difference Result 14879 states and 23371 transitions. [2023-12-02 14:59:42,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-02 14:59:42,539 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 13.285714285714286) internal successors, (93), 7 states have internal predecessors, (93), 3 states have call successors, (45), 2 states have call predecessors, (45), 3 states have return successors, (39), 5 states have call predecessors, (39), 3 states have call successors, (39) Word has length 211 [2023-12-02 14:59:42,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 14:59:42,570 INFO L225 Difference]: With dead ends: 14879 [2023-12-02 14:59:42,570 INFO L226 Difference]: Without dead ends: 9360 [2023-12-02 14:59:42,595 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2023-12-02 14:59:42,596 INFO L413 NwaCegarLoop]: 1028 mSDtfsCounter, 4 mSDsluCounter, 7184 mSDsCounter, 0 mSdLazyCounter, 1306 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 8212 SdHoareTripleChecker+Invalid, 1306 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1306 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2023-12-02 14:59:42,596 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 8212 Invalid, 1306 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1306 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2023-12-02 14:59:42,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9360 states. [2023-12-02 14:59:43,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9360 to 9332. [2023-12-02 14:59:44,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9332 states, 5691 states have (on average 1.2887014584431558) internal successors, (7334), 5813 states have internal predecessors, (7334), 2708 states have call successors, (2708), 880 states have call predecessors, (2708), 926 states have return successors, (3818), 2667 states have call predecessors, (3818), 2704 states have call successors, (3818) [2023-12-02 14:59:44,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9332 states to 9332 states and 13860 transitions. [2023-12-02 14:59:44,045 INFO L78 Accepts]: Start accepts. Automaton has 9332 states and 13860 transitions. Word has length 211 [2023-12-02 14:59:44,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 14:59:44,046 INFO L495 AbstractCegarLoop]: Abstraction has 9332 states and 13860 transitions. [2023-12-02 14:59:44,046 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 13.285714285714286) internal successors, (93), 7 states have internal predecessors, (93), 3 states have call successors, (45), 2 states have call predecessors, (45), 3 states have return successors, (39), 5 states have call predecessors, (39), 3 states have call successors, (39) [2023-12-02 14:59:44,046 INFO L276 IsEmpty]: Start isEmpty. Operand 9332 states and 13860 transitions. [2023-12-02 14:59:44,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 254 [2023-12-02 14:59:44,054 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 14:59:44,054 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:59:44,054 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2023-12-02 14:59:44,054 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting destroy_asyncErr0ASSERT_VIOLATIONERROR_FUNCTION === [get_1284_registerErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2023-12-02 14:59:44,055 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 14:59:44,055 INFO L85 PathProgramCache]: Analyzing trace with hash -1559414836, now seen corresponding path program 1 times [2023-12-02 14:59:44,055 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 14:59:44,055 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1837713522] [2023-12-02 14:59:44,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:59:44,056 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 14:59:44,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:59:44,542 INFO L134 CoverageAnalysis]: Checked inductivity of 496 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 496 trivial. 0 not checked. [2023-12-02 14:59:44,542 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 14:59:44,542 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1837713522] [2023-12-02 14:59:44,542 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1837713522] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 14:59:44,542 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 14:59:44,543 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-02 14:59:44,543 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [995175601] [2023-12-02 14:59:44,543 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 14:59:44,543 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-02 14:59:44,544 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 14:59:44,544 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-02 14:59:44,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-02 14:59:44,544 INFO L87 Difference]: Start difference. First operand 9332 states and 13860 transitions. Second operand has 7 states, 6 states have (on average 15.333333333333334) internal successors, (92), 5 states have internal predecessors, (92), 4 states have call successors, (43), 5 states have call predecessors, (43), 1 states have return successors, (38), 3 states have call predecessors, (38), 3 states have call successors, (38) [2023-12-02 14:59:47,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 14:59:47,242 INFO L93 Difference]: Finished difference Result 16480 states and 25643 transitions. [2023-12-02 14:59:47,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-02 14:59:47,243 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 15.333333333333334) internal successors, (92), 5 states have internal predecessors, (92), 4 states have call successors, (43), 5 states have call predecessors, (43), 1 states have return successors, (38), 3 states have call predecessors, (38), 3 states have call successors, (38) Word has length 253 [2023-12-02 14:59:47,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 14:59:47,275 INFO L225 Difference]: With dead ends: 16480 [2023-12-02 14:59:47,275 INFO L226 Difference]: Without dead ends: 7745 [2023-12-02 14:59:47,310 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2023-12-02 14:59:47,311 INFO L413 NwaCegarLoop]: 1057 mSDtfsCounter, 27 mSDsluCounter, 5219 mSDsCounter, 0 mSdLazyCounter, 1063 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 6276 SdHoareTripleChecker+Invalid, 1079 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 1063 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-12-02 14:59:47,311 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 6276 Invalid, 1079 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 1063 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-12-02 14:59:47,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7745 states. [2023-12-02 14:59:48,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7745 to 7745. [2023-12-02 14:59:48,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7745 states, 4755 states have (on average 1.2754994742376446) internal successors, (6065), 4830 states have internal predecessors, (6065), 2227 states have call successors, (2227), 715 states have call predecessors, (2227), 756 states have return successors, (2998), 2218 states have call predecessors, (2998), 2225 states have call successors, (2998) [2023-12-02 14:59:48,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7745 states to 7745 states and 11290 transitions. [2023-12-02 14:59:48,359 INFO L78 Accepts]: Start accepts. Automaton has 7745 states and 11290 transitions. Word has length 253 [2023-12-02 14:59:48,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 14:59:48,360 INFO L495 AbstractCegarLoop]: Abstraction has 7745 states and 11290 transitions. [2023-12-02 14:59:48,360 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 15.333333333333334) internal successors, (92), 5 states have internal predecessors, (92), 4 states have call successors, (43), 5 states have call predecessors, (43), 1 states have return successors, (38), 3 states have call predecessors, (38), 3 states have call successors, (38) [2023-12-02 14:59:48,360 INFO L276 IsEmpty]: Start isEmpty. Operand 7745 states and 11290 transitions. [2023-12-02 14:59:48,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2023-12-02 14:59:48,365 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 14:59:48,366 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 8, 5, 3, 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] [2023-12-02 14:59:48,366 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2023-12-02 14:59:48,366 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting destroy_asyncErr0ASSERT_VIOLATIONERROR_FUNCTION === [get_1284_registerErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2023-12-02 14:59:48,366 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 14:59:48,366 INFO L85 PathProgramCache]: Analyzing trace with hash 539229643, now seen corresponding path program 1 times [2023-12-02 14:59:48,366 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 14:59:48,366 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [906675593] [2023-12-02 14:59:48,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:59:48,367 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 14:59:48,494 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-02 14:59:48,494 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [676867928] [2023-12-02 14:59:48,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:59:48,494 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 14:59:48,494 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_901edc3c-7b54-4ce7-92a9-b90dad4ea131/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 14:59:48,495 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_901edc3c-7b54-4ce7-92a9-b90dad4ea131/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 14:59:48,496 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_901edc3c-7b54-4ce7-92a9-b90dad4ea131/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-02 14:59:49,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:59:49,347 INFO L262 TraceCheckSpWp]: Trace formula consists of 2551 conjuncts, 40 conjunts are in the unsatisfiable core [2023-12-02 14:59:49,357 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 14:59:49,465 INFO L134 CoverageAnalysis]: Checked inductivity of 202 backedges. 96 proven. 0 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2023-12-02 14:59:49,465 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 14:59:49,465 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 14:59:49,465 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [906675593] [2023-12-02 14:59:49,465 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-02 14:59:49,466 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [676867928] [2023-12-02 14:59:49,466 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [676867928] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 14:59:49,466 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 14:59:49,466 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-12-02 14:59:49,466 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [78346622] [2023-12-02 14:59:49,466 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 14:59:49,467 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-02 14:59:49,467 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 14:59:49,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-02 14:59:49,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2023-12-02 14:59:49,468 INFO L87 Difference]: Start difference. First operand 7745 states and 11290 transitions. Second operand has 11 states, 8 states have (on average 13.375) internal successors, (107), 10 states have internal predecessors, (107), 6 states have call successors, (50), 2 states have call predecessors, (50), 4 states have return successors, (43), 6 states have call predecessors, (43), 6 states have call successors, (43) [2023-12-02 14:59:53,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 14:59:53,234 INFO L93 Difference]: Finished difference Result 14456 states and 21156 transitions. [2023-12-02 14:59:53,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-02 14:59:53,235 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 8 states have (on average 13.375) internal successors, (107), 10 states have internal predecessors, (107), 6 states have call successors, (50), 2 states have call predecessors, (50), 4 states have return successors, (43), 6 states have call predecessors, (43), 6 states have call successors, (43) Word has length 234 [2023-12-02 14:59:53,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 14:59:53,264 INFO L225 Difference]: With dead ends: 14456 [2023-12-02 14:59:53,264 INFO L226 Difference]: Without dead ends: 7817 [2023-12-02 14:59:53,287 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 238 GetRequests, 224 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=195, Unknown=0, NotChecked=0, Total=240 [2023-12-02 14:59:53,288 INFO L413 NwaCegarLoop]: 1008 mSDtfsCounter, 7 mSDsluCounter, 9009 mSDsCounter, 0 mSdLazyCounter, 1840 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 10017 SdHoareTripleChecker+Invalid, 1848 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 1840 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2023-12-02 14:59:53,288 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 10017 Invalid, 1848 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 1840 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2023-12-02 14:59:53,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7817 states. [2023-12-02 14:59:54,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7817 to 7799. [2023-12-02 14:59:54,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7799 states, 4785 states have (on average 1.2729362591431557) internal successors, (6091), 4860 states have internal predecessors, (6091), 2251 states have call successors, (2251), 715 states have call predecessors, (2251), 756 states have return successors, (3022), 2242 states have call predecessors, (3022), 2249 states have call successors, (3022) [2023-12-02 14:59:54,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7799 states to 7799 states and 11364 transitions. [2023-12-02 14:59:54,385 INFO L78 Accepts]: Start accepts. Automaton has 7799 states and 11364 transitions. Word has length 234 [2023-12-02 14:59:54,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 14:59:54,385 INFO L495 AbstractCegarLoop]: Abstraction has 7799 states and 11364 transitions. [2023-12-02 14:59:54,385 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 8 states have (on average 13.375) internal successors, (107), 10 states have internal predecessors, (107), 6 states have call successors, (50), 2 states have call predecessors, (50), 4 states have return successors, (43), 6 states have call predecessors, (43), 6 states have call successors, (43) [2023-12-02 14:59:54,386 INFO L276 IsEmpty]: Start isEmpty. Operand 7799 states and 11364 transitions. [2023-12-02 14:59:54,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2023-12-02 14:59:54,390 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 14:59:54,390 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 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 14:59:54,399 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_901edc3c-7b54-4ce7-92a9-b90dad4ea131/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-12-02 14:59:54,590 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_901edc3c-7b54-4ce7-92a9-b90dad4ea131/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2023-12-02 14:59:54,591 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ldv_linux_usb_dev_usb_put_devErr0ASSERT_VIOLATIONERROR_FUNCTION === [get_1284_registerErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2023-12-02 14:59:54,591 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 14:59:54,591 INFO L85 PathProgramCache]: Analyzing trace with hash -36371429, now seen corresponding path program 1 times [2023-12-02 14:59:54,592 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 14:59:54,592 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1228377409] [2023-12-02 14:59:54,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:59:54,592 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 14:59:55,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:59:56,736 INFO L134 CoverageAnalysis]: Checked inductivity of 498 backedges. 6 proven. 50 refuted. 0 times theorem prover too weak. 442 trivial. 0 not checked. [2023-12-02 14:59:56,737 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 14:59:56,737 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1228377409] [2023-12-02 14:59:56,737 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1228377409] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 14:59:56,737 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2132326281] [2023-12-02 14:59:56,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:59:56,737 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 14:59:56,737 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_901edc3c-7b54-4ce7-92a9-b90dad4ea131/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 14:59:56,738 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_901edc3c-7b54-4ce7-92a9-b90dad4ea131/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 14:59:56,741 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_901edc3c-7b54-4ce7-92a9-b90dad4ea131/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-02 14:59:57,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:59:57,834 INFO L262 TraceCheckSpWp]: Trace formula consists of 2839 conjuncts, 19 conjunts are in the unsatisfiable core [2023-12-02 14:59:57,843 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 14:59:57,985 INFO L134 CoverageAnalysis]: Checked inductivity of 498 backedges. 128 proven. 0 refuted. 0 times theorem prover too weak. 370 trivial. 0 not checked. [2023-12-02 14:59:57,986 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 14:59:57,986 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2132326281] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 14:59:57,986 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-02 14:59:57,986 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [9] total 16 [2023-12-02 14:59:57,986 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [681312051] [2023-12-02 14:59:57,987 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 14:59:57,987 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-02 14:59:57,988 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 14:59:57,988 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-02 14:59:57,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=210, Unknown=0, NotChecked=0, Total=240 [2023-12-02 14:59:57,989 INFO L87 Difference]: Start difference. First operand 7799 states and 11364 transitions. Second operand has 11 states, 8 states have (on average 12.375) internal successors, (99), 10 states have internal predecessors, (99), 6 states have call successors, (43), 2 states have call predecessors, (43), 4 states have return successors, (38), 6 states have call predecessors, (38), 6 states have call successors, (38) [2023-12-02 15:00:02,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 15:00:02,177 INFO L93 Difference]: Finished difference Result 12066 states and 17765 transitions. [2023-12-02 15:00:02,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-02 15:00:02,178 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 8 states have (on average 12.375) internal successors, (99), 10 states have internal predecessors, (99), 6 states have call successors, (43), 2 states have call predecessors, (43), 4 states have return successors, (38), 6 states have call predecessors, (38), 6 states have call successors, (38) Word has length 254 [2023-12-02 15:00:02,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 15:00:02,202 INFO L225 Difference]: With dead ends: 12066 [2023-12-02 15:00:02,202 INFO L226 Difference]: Without dead ends: 8074 [2023-12-02 15:00:02,213 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 270 GetRequests, 250 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=66, Invalid=396, Unknown=0, NotChecked=0, Total=462 [2023-12-02 15:00:02,214 INFO L413 NwaCegarLoop]: 1299 mSDtfsCounter, 196 mSDsluCounter, 11434 mSDsCounter, 0 mSdLazyCounter, 2286 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 277 SdHoareTripleChecker+Valid, 12733 SdHoareTripleChecker+Invalid, 2305 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 2286 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2023-12-02 15:00:02,214 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [277 Valid, 12733 Invalid, 2305 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 2286 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2023-12-02 15:00:02,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8074 states. [2023-12-02 15:00:03,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8074 to 7525. [2023-12-02 15:00:03,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7525 states, 4622 states have (on average 1.2756382518390308) internal successors, (5896), 4698 states have internal predecessors, (5896), 2168 states have call successors, (2168), 687 states have call predecessors, (2168), 728 states have return successors, (2925), 2157 states have call predecessors, (2925), 2166 states have call successors, (2925) [2023-12-02 15:00:03,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7525 states to 7525 states and 10989 transitions. [2023-12-02 15:00:03,290 INFO L78 Accepts]: Start accepts. Automaton has 7525 states and 10989 transitions. Word has length 254 [2023-12-02 15:00:03,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 15:00:03,290 INFO L495 AbstractCegarLoop]: Abstraction has 7525 states and 10989 transitions. [2023-12-02 15:00:03,291 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 8 states have (on average 12.375) internal successors, (99), 10 states have internal predecessors, (99), 6 states have call successors, (43), 2 states have call predecessors, (43), 4 states have return successors, (38), 6 states have call predecessors, (38), 6 states have call successors, (38) [2023-12-02 15:00:03,291 INFO L276 IsEmpty]: Start isEmpty. Operand 7525 states and 10989 transitions. [2023-12-02 15:00:03,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 258 [2023-12-02 15:00:03,295 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:00:03,295 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:00:03,304 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_901edc3c-7b54-4ce7-92a9-b90dad4ea131/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-12-02 15:00:03,495 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_901edc3c-7b54-4ce7-92a9-b90dad4ea131/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2023-12-02 15:00:03,496 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting ldv_linux_usb_dev_usb_put_devErr0ASSERT_VIOLATIONERROR_FUNCTION === [get_1284_registerErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2023-12-02 15:00:03,496 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:00:03,496 INFO L85 PathProgramCache]: Analyzing trace with hash 1277982624, now seen corresponding path program 1 times [2023-12-02 15:00:03,496 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 15:00:03,496 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1325765562] [2023-12-02 15:00:03,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:00:03,497 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 15:00:03,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:00:04,544 INFO L134 CoverageAnalysis]: Checked inductivity of 395 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 395 trivial. 0 not checked. [2023-12-02 15:00:04,545 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 15:00:04,545 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1325765562] [2023-12-02 15:00:04,545 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1325765562] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 15:00:04,545 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 15:00:04,545 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-02 15:00:04,545 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1227597380] [2023-12-02 15:00:04,545 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 15:00:04,546 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-02 15:00:04,546 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 15:00:04,546 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-02 15:00:04,546 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-12-02 15:00:04,547 INFO L87 Difference]: Start difference. First operand 7525 states and 10989 transitions. Second operand has 9 states, 7 states have (on average 14.285714285714286) internal successors, (100), 7 states have internal predecessors, (100), 3 states have call successors, (44), 2 states have call predecessors, (44), 3 states have return successors, (40), 5 states have call predecessors, (40), 3 states have call successors, (40) [2023-12-02 15:00:07,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 15:00:07,700 INFO L93 Difference]: Finished difference Result 9775 states and 14237 transitions. [2023-12-02 15:00:07,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-02 15:00:07,701 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 14.285714285714286) internal successors, (100), 7 states have internal predecessors, (100), 3 states have call successors, (44), 2 states have call predecessors, (44), 3 states have return successors, (40), 5 states have call predecessors, (40), 3 states have call successors, (40) Word has length 257 [2023-12-02 15:00:07,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 15:00:07,720 INFO L225 Difference]: With dead ends: 9775 [2023-12-02 15:00:07,720 INFO L226 Difference]: Without dead ends: 7532 [2023-12-02 15:00:07,727 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2023-12-02 15:00:07,728 INFO L413 NwaCegarLoop]: 1025 mSDtfsCounter, 3 mSDsluCounter, 7168 mSDsCounter, 0 mSdLazyCounter, 1310 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 8193 SdHoareTripleChecker+Invalid, 1310 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1310 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2023-12-02 15:00:07,728 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 8193 Invalid, 1310 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1310 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2023-12-02 15:00:07,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7532 states. [2023-12-02 15:00:08,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7532 to 7527. [2023-12-02 15:00:08,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7527 states, 4624 states have (on average 1.2755190311418685) internal successors, (5898), 4699 states have internal predecessors, (5898), 2168 states have call successors, (2168), 687 states have call predecessors, (2168), 728 states have return successors, (2925), 2158 states have call predecessors, (2925), 2166 states have call successors, (2925) [2023-12-02 15:00:08,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7527 states to 7527 states and 10991 transitions. [2023-12-02 15:00:08,761 INFO L78 Accepts]: Start accepts. Automaton has 7527 states and 10991 transitions. Word has length 257 [2023-12-02 15:00:08,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 15:00:08,761 INFO L495 AbstractCegarLoop]: Abstraction has 7527 states and 10991 transitions. [2023-12-02 15:00:08,761 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 14.285714285714286) internal successors, (100), 7 states have internal predecessors, (100), 3 states have call successors, (44), 2 states have call predecessors, (44), 3 states have return successors, (40), 5 states have call predecessors, (40), 3 states have call successors, (40) [2023-12-02 15:00:08,761 INFO L276 IsEmpty]: Start isEmpty. Operand 7527 states and 10991 transitions. [2023-12-02 15:00:08,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2023-12-02 15:00:08,766 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:00:08,766 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 8, 5, 4, 3, 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] [2023-12-02 15:00:08,767 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2023-12-02 15:00:08,767 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting destroy_asyncErr0ASSERT_VIOLATIONERROR_FUNCTION === [get_1284_registerErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2023-12-02 15:00:08,767 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:00:08,767 INFO L85 PathProgramCache]: Analyzing trace with hash 641816637, now seen corresponding path program 1 times [2023-12-02 15:00:08,767 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 15:00:08,767 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [714959917] [2023-12-02 15:00:08,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:00:08,767 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 15:00:08,879 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-02 15:00:08,879 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1505517162] [2023-12-02 15:00:08,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:00:08,879 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 15:00:08,879 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_901edc3c-7b54-4ce7-92a9-b90dad4ea131/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 15:00:08,880 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_901edc3c-7b54-4ce7-92a9-b90dad4ea131/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 15:00:08,883 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_901edc3c-7b54-4ce7-92a9-b90dad4ea131/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-12-02 15:00:09,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:00:09,704 INFO L262 TraceCheckSpWp]: Trace formula consists of 2487 conjuncts, 15 conjunts are in the unsatisfiable core [2023-12-02 15:00:09,710 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 15:00:09,747 INFO L134 CoverageAnalysis]: Checked inductivity of 214 backedges. 68 proven. 0 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2023-12-02 15:00:09,748 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 15:00:09,748 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 15:00:09,748 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [714959917] [2023-12-02 15:00:09,748 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-02 15:00:09,748 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1505517162] [2023-12-02 15:00:09,748 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1505517162] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 15:00:09,748 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 15:00:09,749 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-02 15:00:09,749 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1707474533] [2023-12-02 15:00:09,749 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 15:00:09,750 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-02 15:00:09,750 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 15:00:09,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-02 15:00:09,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-02 15:00:09,751 INFO L87 Difference]: Start difference. First operand 7527 states and 10991 transitions. Second operand has 7 states, 6 states have (on average 17.833333333333332) internal successors, (107), 6 states have internal predecessors, (107), 2 states have call successors, (53), 2 states have call predecessors, (53), 3 states have return successors, (47), 3 states have call predecessors, (47), 2 states have call successors, (47) [2023-12-02 15:00:12,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 15:00:12,228 INFO L93 Difference]: Finished difference Result 7651 states and 11104 transitions. [2023-12-02 15:00:12,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-02 15:00:12,229 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 17.833333333333332) internal successors, (107), 6 states have internal predecessors, (107), 2 states have call successors, (53), 2 states have call predecessors, (53), 3 states have return successors, (47), 3 states have call predecessors, (47), 2 states have call successors, (47) Word has length 244 [2023-12-02 15:00:12,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 15:00:12,241 INFO L225 Difference]: With dead ends: 7651 [2023-12-02 15:00:12,241 INFO L226 Difference]: Without dead ends: 5881 [2023-12-02 15:00:12,245 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 246 GetRequests, 238 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2023-12-02 15:00:12,245 INFO L413 NwaCegarLoop]: 1010 mSDtfsCounter, 3 mSDsluCounter, 5012 mSDsCounter, 0 mSdLazyCounter, 1099 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 6022 SdHoareTripleChecker+Invalid, 1100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1099 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-12-02 15:00:12,245 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 6022 Invalid, 1100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1099 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-12-02 15:00:12,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5881 states. [2023-12-02 15:00:13,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5881 to 5881. [2023-12-02 15:00:13,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5881 states, 3604 states have (on average 1.271087680355161) internal successors, (4581), 3662 states have internal predecessors, (4581), 1703 states have call successors, (1703), 536 states have call predecessors, (1703), 567 states have return successors, (2281), 1697 states have call predecessors, (2281), 1701 states have call successors, (2281) [2023-12-02 15:00:13,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5881 states to 5881 states and 8565 transitions. [2023-12-02 15:00:13,025 INFO L78 Accepts]: Start accepts. Automaton has 5881 states and 8565 transitions. Word has length 244 [2023-12-02 15:00:13,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 15:00:13,025 INFO L495 AbstractCegarLoop]: Abstraction has 5881 states and 8565 transitions. [2023-12-02 15:00:13,026 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 17.833333333333332) internal successors, (107), 6 states have internal predecessors, (107), 2 states have call successors, (53), 2 states have call predecessors, (53), 3 states have return successors, (47), 3 states have call predecessors, (47), 2 states have call successors, (47) [2023-12-02 15:00:13,026 INFO L276 IsEmpty]: Start isEmpty. Operand 5881 states and 8565 transitions. [2023-12-02 15:00:13,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 275 [2023-12-02 15:00:13,029 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:00:13,030 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:00:13,038 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_901edc3c-7b54-4ce7-92a9-b90dad4ea131/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-12-02 15:00:13,230 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_901edc3c-7b54-4ce7-92a9-b90dad4ea131/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2023-12-02 15:00:13,230 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting ldv_linux_usb_dev_usb_put_devErr0ASSERT_VIOLATIONERROR_FUNCTION === [get_1284_registerErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2023-12-02 15:00:13,231 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:00:13,231 INFO L85 PathProgramCache]: Analyzing trace with hash -273969026, now seen corresponding path program 1 times [2023-12-02 15:00:13,231 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 15:00:13,231 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [434353418] [2023-12-02 15:00:13,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:00:13,231 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 15:00:13,365 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-02 15:00:13,365 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [612641399] [2023-12-02 15:00:13,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:00:13,365 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 15:00:13,365 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_901edc3c-7b54-4ce7-92a9-b90dad4ea131/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 15:00:13,366 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_901edc3c-7b54-4ce7-92a9-b90dad4ea131/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 15:00:13,368 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_901edc3c-7b54-4ce7-92a9-b90dad4ea131/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-12-02 15:00:14,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:00:14,396 INFO L262 TraceCheckSpWp]: Trace formula consists of 2828 conjuncts, 40 conjunts are in the unsatisfiable core [2023-12-02 15:00:14,403 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 15:00:14,515 INFO L134 CoverageAnalysis]: Checked inductivity of 492 backedges. 260 proven. 2 refuted. 0 times theorem prover too weak. 230 trivial. 0 not checked. [2023-12-02 15:00:14,515 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 15:00:14,977 INFO L134 CoverageAnalysis]: Checked inductivity of 492 backedges. 13 proven. 37 refuted. 0 times theorem prover too weak. 442 trivial. 0 not checked. [2023-12-02 15:00:14,978 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 15:00:14,978 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [434353418] [2023-12-02 15:00:14,978 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-02 15:00:14,978 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [612641399] [2023-12-02 15:00:14,978 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [612641399] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 15:00:14,978 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1048463316] [2023-12-02 15:00:15,002 INFO L159 IcfgInterpreter]: Started Sifa with 178 locations of interest [2023-12-02 15:00:15,002 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 15:00:15,005 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 15:00:15,010 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 15:00:15,010 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 15:02:54,082 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_xmalloc with input of size 1312 for LOIs [2023-12-02 15:04:50,883 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_is_err with input of size 1329 for LOIs [2023-12-02 15:04:53,323 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_assume with input of size 116 for LOIs [2023-12-02 15:04:53,377 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_undef_int with input of size 1323 for LOIs [2023-12-02 15:05:02,937 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 15:05:23,318 WARN L293 SmtUtils]: Spent 20.11s on a formula simplification that was a NOOP. DAG size: 1294 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 15:05:44,388 WARN L293 SmtUtils]: Spent 19.78s on a formula simplification that was a NOOP. DAG size: 1296 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 15:06:07,800 WARN L293 SmtUtils]: Spent 22.99s on a formula simplification. DAG size of input: 1379 DAG size of output: 1376 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 15:07:41,469 WARN L293 SmtUtils]: Spent 1.55m on a formula simplification. DAG size of input: 1323 DAG size of output: 1317 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 15:09:15,170 WARN L293 SmtUtils]: Spent 1.55m on a formula simplification. DAG size of input: 1329 DAG size of output: 1323 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 15:09:40,164 WARN L293 SmtUtils]: Spent 24.47s on a formula simplification. DAG size of input: 1392 DAG size of output: 1380 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 15:10:05,680 WARN L293 SmtUtils]: Spent 24.86s on a formula simplification. DAG size of input: 1404 DAG size of output: 1392 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 15:10:31,777 WARN L293 SmtUtils]: Spent 25.31s on a formula simplification. DAG size of input: 1411 DAG size of output: 1396 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 15:10:59,343 WARN L293 SmtUtils]: Spent 26.65s on a formula simplification. DAG size of input: 1411 DAG size of output: 1396 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)