./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--net--wireless--ath--ar5523--ar5523.ko.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85dc7eba-5142-4bce-bd57-2a255a3ad201/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85dc7eba-5142-4bce-bd57-2a255a3ad201/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_85dc7eba-5142-4bce-bd57-2a255a3ad201/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85dc7eba-5142-4bce-bd57-2a255a3ad201/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85dc7eba-5142-4bce-bd57-2a255a3ad201/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_85dc7eba-5142-4bce-bd57-2a255a3ad201/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 d25a5fddccc283f641b7212d7cb4f798f6892ab426c5d600c12492c2922640af --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 20:09:08,439 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 20:09:08,513 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85dc7eba-5142-4bce-bd57-2a255a3ad201/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-12-02 20:09:08,518 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 20:09:08,519 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 20:09:08,546 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 20:09:08,546 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 20:09:08,547 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 20:09:08,548 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 20:09:08,548 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 20:09:08,549 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 20:09:08,550 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 20:09:08,550 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 20:09:08,551 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-12-02 20:09:08,551 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 20:09:08,552 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 20:09:08,553 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-12-02 20:09:08,553 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-12-02 20:09:08,554 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 20:09:08,554 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-12-02 20:09:08,555 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-12-02 20:09:08,555 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-12-02 20:09:08,556 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 20:09:08,557 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 20:09:08,557 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 20:09:08,558 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 20:09:08,558 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 20:09:08,559 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 20:09:08,559 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 20:09:08,560 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 20:09:08,560 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 20:09:08,561 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 20:09:08,561 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 20:09:08,561 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 20:09:08,562 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 20:09:08,562 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 20:09:08,562 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 20:09:08,562 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 20:09:08,562 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-12-02 20:09:08,563 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 20:09:08,563 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 20:09:08,563 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 20:09:08,563 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 20:09:08,563 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 20:09:08,564 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_85dc7eba-5142-4bce-bd57-2a255a3ad201/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85dc7eba-5142-4bce-bd57-2a255a3ad201/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d25a5fddccc283f641b7212d7cb4f798f6892ab426c5d600c12492c2922640af [2023-12-02 20:09:08,774 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 20:09:08,795 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 20:09:08,798 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 20:09:08,800 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 20:09:08,800 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 20:09:08,802 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85dc7eba-5142-4bce-bd57-2a255a3ad201/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i [2023-12-02 20:09:11,685 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 20:09:12,282 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 20:09:12,283 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85dc7eba-5142-4bce-bd57-2a255a3ad201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i [2023-12-02 20:09:12,341 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85dc7eba-5142-4bce-bd57-2a255a3ad201/bin/utaipan-verify-nQ1chXbOIh/data/cc4f181f7/be7e02af09c64913be71d96ab778152f/FLAGc98926ab7 [2023-12-02 20:09:12,357 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85dc7eba-5142-4bce-bd57-2a255a3ad201/bin/utaipan-verify-nQ1chXbOIh/data/cc4f181f7/be7e02af09c64913be71d96ab778152f [2023-12-02 20:09:12,360 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 20:09:12,362 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 20:09:12,363 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 20:09:12,364 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 20:09:12,373 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 20:09:12,374 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 08:09:12" (1/1) ... [2023-12-02 20:09:12,375 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@41e5701f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:09:12, skipping insertion in model container [2023-12-02 20:09:12,375 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 08:09:12" (1/1) ... [2023-12-02 20:09:12,596 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 20:09:17,813 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85dc7eba-5142-4bce-bd57-2a255a3ad201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[491154,491167] [2023-12-02 20:09:17,817 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85dc7eba-5142-4bce-bd57-2a255a3ad201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[491299,491312] [2023-12-02 20:09:17,818 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85dc7eba-5142-4bce-bd57-2a255a3ad201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[491445,491458] [2023-12-02 20:09:17,818 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85dc7eba-5142-4bce-bd57-2a255a3ad201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[491610,491623] [2023-12-02 20:09:17,819 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85dc7eba-5142-4bce-bd57-2a255a3ad201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[491768,491781] [2023-12-02 20:09:17,819 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85dc7eba-5142-4bce-bd57-2a255a3ad201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[491926,491939] [2023-12-02 20:09:17,820 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85dc7eba-5142-4bce-bd57-2a255a3ad201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[492084,492097] [2023-12-02 20:09:17,820 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85dc7eba-5142-4bce-bd57-2a255a3ad201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[492244,492257] [2023-12-02 20:09:17,821 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85dc7eba-5142-4bce-bd57-2a255a3ad201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[492403,492416] [2023-12-02 20:09:17,821 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85dc7eba-5142-4bce-bd57-2a255a3ad201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[492542,492555] [2023-12-02 20:09:17,821 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85dc7eba-5142-4bce-bd57-2a255a3ad201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[492684,492697] [2023-12-02 20:09:17,822 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85dc7eba-5142-4bce-bd57-2a255a3ad201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[492833,492846] [2023-12-02 20:09:17,822 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85dc7eba-5142-4bce-bd57-2a255a3ad201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[492972,492985] [2023-12-02 20:09:17,823 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85dc7eba-5142-4bce-bd57-2a255a3ad201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[493127,493140] [2023-12-02 20:09:17,823 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85dc7eba-5142-4bce-bd57-2a255a3ad201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[493287,493300] [2023-12-02 20:09:17,824 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85dc7eba-5142-4bce-bd57-2a255a3ad201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[493438,493451] [2023-12-02 20:09:17,824 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85dc7eba-5142-4bce-bd57-2a255a3ad201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[493589,493602] [2023-12-02 20:09:17,825 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85dc7eba-5142-4bce-bd57-2a255a3ad201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[493741,493754] [2023-12-02 20:09:17,825 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85dc7eba-5142-4bce-bd57-2a255a3ad201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[493890,493903] [2023-12-02 20:09:17,826 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85dc7eba-5142-4bce-bd57-2a255a3ad201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[494038,494051] [2023-12-02 20:09:17,827 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85dc7eba-5142-4bce-bd57-2a255a3ad201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[494195,494208] [2023-12-02 20:09:17,828 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85dc7eba-5142-4bce-bd57-2a255a3ad201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[494344,494357] [2023-12-02 20:09:17,828 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85dc7eba-5142-4bce-bd57-2a255a3ad201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[494500,494513] [2023-12-02 20:09:17,829 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85dc7eba-5142-4bce-bd57-2a255a3ad201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[494653,494666] [2023-12-02 20:09:17,829 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85dc7eba-5142-4bce-bd57-2a255a3ad201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[494799,494812] [2023-12-02 20:09:17,830 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85dc7eba-5142-4bce-bd57-2a255a3ad201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[494942,494955] [2023-12-02 20:09:17,831 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85dc7eba-5142-4bce-bd57-2a255a3ad201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[495094,495107] [2023-12-02 20:09:17,831 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85dc7eba-5142-4bce-bd57-2a255a3ad201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[495240,495253] [2023-12-02 20:09:17,832 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85dc7eba-5142-4bce-bd57-2a255a3ad201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[495385,495398] [2023-12-02 20:09:17,833 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85dc7eba-5142-4bce-bd57-2a255a3ad201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[495539,495552] [2023-12-02 20:09:17,833 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85dc7eba-5142-4bce-bd57-2a255a3ad201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[495690,495703] [2023-12-02 20:09:17,834 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85dc7eba-5142-4bce-bd57-2a255a3ad201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[495845,495858] [2023-12-02 20:09:17,834 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85dc7eba-5142-4bce-bd57-2a255a3ad201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[495997,496010] [2023-12-02 20:09:17,835 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85dc7eba-5142-4bce-bd57-2a255a3ad201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[496152,496165] [2023-12-02 20:09:17,836 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85dc7eba-5142-4bce-bd57-2a255a3ad201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[496316,496329] [2023-12-02 20:09:17,836 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85dc7eba-5142-4bce-bd57-2a255a3ad201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[496472,496485] [2023-12-02 20:09:17,837 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85dc7eba-5142-4bce-bd57-2a255a3ad201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[496636,496649] [2023-12-02 20:09:17,837 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85dc7eba-5142-4bce-bd57-2a255a3ad201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[496778,496791] [2023-12-02 20:09:17,838 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85dc7eba-5142-4bce-bd57-2a255a3ad201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[496936,496949] [2023-12-02 20:09:17,839 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85dc7eba-5142-4bce-bd57-2a255a3ad201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[497103,497116] [2023-12-02 20:09:17,839 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85dc7eba-5142-4bce-bd57-2a255a3ad201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[497262,497275] [2023-12-02 20:09:17,840 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85dc7eba-5142-4bce-bd57-2a255a3ad201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[497421,497434] [2023-12-02 20:09:17,840 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85dc7eba-5142-4bce-bd57-2a255a3ad201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[497570,497583] [2023-12-02 20:09:17,841 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85dc7eba-5142-4bce-bd57-2a255a3ad201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[497717,497730] [2023-12-02 20:09:17,841 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85dc7eba-5142-4bce-bd57-2a255a3ad201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[497856,497869] [2023-12-02 20:09:17,842 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85dc7eba-5142-4bce-bd57-2a255a3ad201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[498019,498032] [2023-12-02 20:09:17,843 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85dc7eba-5142-4bce-bd57-2a255a3ad201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[498185,498198] [2023-12-02 20:09:17,843 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85dc7eba-5142-4bce-bd57-2a255a3ad201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[498349,498362] [2023-12-02 20:09:17,844 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85dc7eba-5142-4bce-bd57-2a255a3ad201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[498514,498527] [2023-12-02 20:09:17,844 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85dc7eba-5142-4bce-bd57-2a255a3ad201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[498679,498692] [2023-12-02 20:09:17,845 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85dc7eba-5142-4bce-bd57-2a255a3ad201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[498845,498858] [2023-12-02 20:09:17,845 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85dc7eba-5142-4bce-bd57-2a255a3ad201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[499010,499023] [2023-12-02 20:09:17,846 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85dc7eba-5142-4bce-bd57-2a255a3ad201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[499177,499190] [2023-12-02 20:09:17,847 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85dc7eba-5142-4bce-bd57-2a255a3ad201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[499337,499350] [2023-12-02 20:09:17,847 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85dc7eba-5142-4bce-bd57-2a255a3ad201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[499499,499512] [2023-12-02 20:09:17,848 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85dc7eba-5142-4bce-bd57-2a255a3ad201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[499658,499671] [2023-12-02 20:09:17,848 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85dc7eba-5142-4bce-bd57-2a255a3ad201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[499804,499817] [2023-12-02 20:09:17,849 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85dc7eba-5142-4bce-bd57-2a255a3ad201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[499947,499960] [2023-12-02 20:09:17,849 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85dc7eba-5142-4bce-bd57-2a255a3ad201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[500091,500104] [2023-12-02 20:09:17,850 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85dc7eba-5142-4bce-bd57-2a255a3ad201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[500234,500247] [2023-12-02 20:09:17,851 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85dc7eba-5142-4bce-bd57-2a255a3ad201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[500378,500391] [2023-12-02 20:09:17,851 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85dc7eba-5142-4bce-bd57-2a255a3ad201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[500519,500532] [2023-12-02 20:09:17,852 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85dc7eba-5142-4bce-bd57-2a255a3ad201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[500657,500670] [2023-12-02 20:09:17,852 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85dc7eba-5142-4bce-bd57-2a255a3ad201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[500815,500828] [2023-12-02 20:09:17,853 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85dc7eba-5142-4bce-bd57-2a255a3ad201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[500974,500987] [2023-12-02 20:09:17,853 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85dc7eba-5142-4bce-bd57-2a255a3ad201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[501130,501143] [2023-12-02 20:09:17,854 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85dc7eba-5142-4bce-bd57-2a255a3ad201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[501279,501292] [2023-12-02 20:09:17,854 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85dc7eba-5142-4bce-bd57-2a255a3ad201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[501431,501444] [2023-12-02 20:09:17,855 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85dc7eba-5142-4bce-bd57-2a255a3ad201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[501582,501595] [2023-12-02 20:09:17,856 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85dc7eba-5142-4bce-bd57-2a255a3ad201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[501731,501744] [2023-12-02 20:09:17,856 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85dc7eba-5142-4bce-bd57-2a255a3ad201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[501883,501896] [2023-12-02 20:09:17,857 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85dc7eba-5142-4bce-bd57-2a255a3ad201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[502031,502044] [2023-12-02 20:09:17,857 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85dc7eba-5142-4bce-bd57-2a255a3ad201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[502184,502197] [2023-12-02 20:09:17,858 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85dc7eba-5142-4bce-bd57-2a255a3ad201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[502335,502348] [2023-12-02 20:09:17,858 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85dc7eba-5142-4bce-bd57-2a255a3ad201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[502485,502498] [2023-12-02 20:09:17,859 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85dc7eba-5142-4bce-bd57-2a255a3ad201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[502632,502645] [2023-12-02 20:09:17,859 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85dc7eba-5142-4bce-bd57-2a255a3ad201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[502783,502796] [2023-12-02 20:09:17,860 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85dc7eba-5142-4bce-bd57-2a255a3ad201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[502934,502947] [2023-12-02 20:09:17,861 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85dc7eba-5142-4bce-bd57-2a255a3ad201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[503082,503095] [2023-12-02 20:09:17,861 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85dc7eba-5142-4bce-bd57-2a255a3ad201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[503248,503261] [2023-12-02 20:09:17,862 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85dc7eba-5142-4bce-bd57-2a255a3ad201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[503417,503430] [2023-12-02 20:09:17,862 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85dc7eba-5142-4bce-bd57-2a255a3ad201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[503584,503597] [2023-12-02 20:09:17,863 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85dc7eba-5142-4bce-bd57-2a255a3ad201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[503752,503765] [2023-12-02 20:09:17,863 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85dc7eba-5142-4bce-bd57-2a255a3ad201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[503902,503915] [2023-12-02 20:09:17,864 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85dc7eba-5142-4bce-bd57-2a255a3ad201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[504049,504062] [2023-12-02 20:09:17,864 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85dc7eba-5142-4bce-bd57-2a255a3ad201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[504210,504223] [2023-12-02 20:09:17,865 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85dc7eba-5142-4bce-bd57-2a255a3ad201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[504380,504393] [2023-12-02 20:09:17,868 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85dc7eba-5142-4bce-bd57-2a255a3ad201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[504542,504555] [2023-12-02 20:09:17,891 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 20:09:17,954 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 20:09:18,136 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; bts %1,%0": "+m" (*((long volatile *)addr)): "Ir" (nr): "memory"); [7616] [2023-12-02 20:09:18,138 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; btr %1,%0": "+m" (*((long volatile *)addr)): "Ir" (nr)); [7623] [2023-12-02 20:09:18,350 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"drivers/net/wireless/ath/ar5523/ar5523.c"), "i" (1206), "i" (12UL)); [10883-10884] [2023-12-02 20:09:18,490 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85dc7eba-5142-4bce-bd57-2a255a3ad201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[491154,491167] [2023-12-02 20:09:18,491 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85dc7eba-5142-4bce-bd57-2a255a3ad201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[491299,491312] [2023-12-02 20:09:18,492 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85dc7eba-5142-4bce-bd57-2a255a3ad201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[491445,491458] [2023-12-02 20:09:18,492 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85dc7eba-5142-4bce-bd57-2a255a3ad201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[491610,491623] [2023-12-02 20:09:18,493 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85dc7eba-5142-4bce-bd57-2a255a3ad201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[491768,491781] [2023-12-02 20:09:18,493 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85dc7eba-5142-4bce-bd57-2a255a3ad201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[491926,491939] [2023-12-02 20:09:18,494 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85dc7eba-5142-4bce-bd57-2a255a3ad201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[492084,492097] [2023-12-02 20:09:18,494 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85dc7eba-5142-4bce-bd57-2a255a3ad201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[492244,492257] [2023-12-02 20:09:18,495 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85dc7eba-5142-4bce-bd57-2a255a3ad201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[492403,492416] [2023-12-02 20:09:18,495 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85dc7eba-5142-4bce-bd57-2a255a3ad201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[492542,492555] [2023-12-02 20:09:18,496 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85dc7eba-5142-4bce-bd57-2a255a3ad201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[492684,492697] [2023-12-02 20:09:18,496 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85dc7eba-5142-4bce-bd57-2a255a3ad201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[492833,492846] [2023-12-02 20:09:18,497 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85dc7eba-5142-4bce-bd57-2a255a3ad201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[492972,492985] [2023-12-02 20:09:18,497 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85dc7eba-5142-4bce-bd57-2a255a3ad201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[493127,493140] [2023-12-02 20:09:18,498 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85dc7eba-5142-4bce-bd57-2a255a3ad201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[493287,493300] [2023-12-02 20:09:18,498 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85dc7eba-5142-4bce-bd57-2a255a3ad201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[493438,493451] [2023-12-02 20:09:18,499 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85dc7eba-5142-4bce-bd57-2a255a3ad201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[493589,493602] [2023-12-02 20:09:18,499 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85dc7eba-5142-4bce-bd57-2a255a3ad201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[493741,493754] [2023-12-02 20:09:18,500 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85dc7eba-5142-4bce-bd57-2a255a3ad201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[493890,493903] [2023-12-02 20:09:18,500 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85dc7eba-5142-4bce-bd57-2a255a3ad201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[494038,494051] [2023-12-02 20:09:18,500 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85dc7eba-5142-4bce-bd57-2a255a3ad201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[494195,494208] [2023-12-02 20:09:18,501 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85dc7eba-5142-4bce-bd57-2a255a3ad201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[494344,494357] [2023-12-02 20:09:18,501 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85dc7eba-5142-4bce-bd57-2a255a3ad201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[494500,494513] [2023-12-02 20:09:18,502 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85dc7eba-5142-4bce-bd57-2a255a3ad201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[494653,494666] [2023-12-02 20:09:18,502 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85dc7eba-5142-4bce-bd57-2a255a3ad201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[494799,494812] [2023-12-02 20:09:18,503 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85dc7eba-5142-4bce-bd57-2a255a3ad201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[494942,494955] [2023-12-02 20:09:18,503 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85dc7eba-5142-4bce-bd57-2a255a3ad201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[495094,495107] [2023-12-02 20:09:18,503 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85dc7eba-5142-4bce-bd57-2a255a3ad201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[495240,495253] [2023-12-02 20:09:18,504 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85dc7eba-5142-4bce-bd57-2a255a3ad201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[495385,495398] [2023-12-02 20:09:18,504 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85dc7eba-5142-4bce-bd57-2a255a3ad201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[495539,495552] [2023-12-02 20:09:18,505 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85dc7eba-5142-4bce-bd57-2a255a3ad201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[495690,495703] [2023-12-02 20:09:18,505 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85dc7eba-5142-4bce-bd57-2a255a3ad201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[495845,495858] [2023-12-02 20:09:18,506 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85dc7eba-5142-4bce-bd57-2a255a3ad201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[495997,496010] [2023-12-02 20:09:18,506 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85dc7eba-5142-4bce-bd57-2a255a3ad201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[496152,496165] [2023-12-02 20:09:18,507 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85dc7eba-5142-4bce-bd57-2a255a3ad201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[496316,496329] [2023-12-02 20:09:18,507 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85dc7eba-5142-4bce-bd57-2a255a3ad201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[496472,496485] [2023-12-02 20:09:18,508 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85dc7eba-5142-4bce-bd57-2a255a3ad201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[496636,496649] [2023-12-02 20:09:18,508 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85dc7eba-5142-4bce-bd57-2a255a3ad201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[496778,496791] [2023-12-02 20:09:18,509 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85dc7eba-5142-4bce-bd57-2a255a3ad201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[496936,496949] [2023-12-02 20:09:18,509 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85dc7eba-5142-4bce-bd57-2a255a3ad201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[497103,497116] [2023-12-02 20:09:18,510 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85dc7eba-5142-4bce-bd57-2a255a3ad201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[497262,497275] [2023-12-02 20:09:18,510 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85dc7eba-5142-4bce-bd57-2a255a3ad201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[497421,497434] [2023-12-02 20:09:18,510 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85dc7eba-5142-4bce-bd57-2a255a3ad201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[497570,497583] [2023-12-02 20:09:18,511 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85dc7eba-5142-4bce-bd57-2a255a3ad201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[497717,497730] [2023-12-02 20:09:18,511 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85dc7eba-5142-4bce-bd57-2a255a3ad201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[497856,497869] [2023-12-02 20:09:18,512 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85dc7eba-5142-4bce-bd57-2a255a3ad201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[498019,498032] [2023-12-02 20:09:18,512 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85dc7eba-5142-4bce-bd57-2a255a3ad201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[498185,498198] [2023-12-02 20:09:18,513 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85dc7eba-5142-4bce-bd57-2a255a3ad201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[498349,498362] [2023-12-02 20:09:18,513 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85dc7eba-5142-4bce-bd57-2a255a3ad201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[498514,498527] [2023-12-02 20:09:18,513 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85dc7eba-5142-4bce-bd57-2a255a3ad201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[498679,498692] [2023-12-02 20:09:18,514 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85dc7eba-5142-4bce-bd57-2a255a3ad201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[498845,498858] [2023-12-02 20:09:18,514 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85dc7eba-5142-4bce-bd57-2a255a3ad201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[499010,499023] [2023-12-02 20:09:18,515 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85dc7eba-5142-4bce-bd57-2a255a3ad201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[499177,499190] [2023-12-02 20:09:18,515 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85dc7eba-5142-4bce-bd57-2a255a3ad201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[499337,499350] [2023-12-02 20:09:18,516 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85dc7eba-5142-4bce-bd57-2a255a3ad201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[499499,499512] [2023-12-02 20:09:18,516 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85dc7eba-5142-4bce-bd57-2a255a3ad201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[499658,499671] [2023-12-02 20:09:18,516 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85dc7eba-5142-4bce-bd57-2a255a3ad201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[499804,499817] [2023-12-02 20:09:18,517 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85dc7eba-5142-4bce-bd57-2a255a3ad201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[499947,499960] [2023-12-02 20:09:18,517 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85dc7eba-5142-4bce-bd57-2a255a3ad201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[500091,500104] [2023-12-02 20:09:18,518 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85dc7eba-5142-4bce-bd57-2a255a3ad201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[500234,500247] [2023-12-02 20:09:18,518 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85dc7eba-5142-4bce-bd57-2a255a3ad201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[500378,500391] [2023-12-02 20:09:18,519 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85dc7eba-5142-4bce-bd57-2a255a3ad201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[500519,500532] [2023-12-02 20:09:18,519 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85dc7eba-5142-4bce-bd57-2a255a3ad201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[500657,500670] [2023-12-02 20:09:18,519 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85dc7eba-5142-4bce-bd57-2a255a3ad201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[500815,500828] [2023-12-02 20:09:18,520 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85dc7eba-5142-4bce-bd57-2a255a3ad201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[500974,500987] [2023-12-02 20:09:18,520 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85dc7eba-5142-4bce-bd57-2a255a3ad201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[501130,501143] [2023-12-02 20:09:18,521 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85dc7eba-5142-4bce-bd57-2a255a3ad201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[501279,501292] [2023-12-02 20:09:18,521 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85dc7eba-5142-4bce-bd57-2a255a3ad201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[501431,501444] [2023-12-02 20:09:18,522 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85dc7eba-5142-4bce-bd57-2a255a3ad201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[501582,501595] [2023-12-02 20:09:18,522 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85dc7eba-5142-4bce-bd57-2a255a3ad201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[501731,501744] [2023-12-02 20:09:18,522 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85dc7eba-5142-4bce-bd57-2a255a3ad201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[501883,501896] [2023-12-02 20:09:18,523 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85dc7eba-5142-4bce-bd57-2a255a3ad201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[502031,502044] [2023-12-02 20:09:18,523 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85dc7eba-5142-4bce-bd57-2a255a3ad201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[502184,502197] [2023-12-02 20:09:18,524 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85dc7eba-5142-4bce-bd57-2a255a3ad201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[502335,502348] [2023-12-02 20:09:18,524 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85dc7eba-5142-4bce-bd57-2a255a3ad201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[502485,502498] [2023-12-02 20:09:18,525 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85dc7eba-5142-4bce-bd57-2a255a3ad201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[502632,502645] [2023-12-02 20:09:18,525 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85dc7eba-5142-4bce-bd57-2a255a3ad201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[502783,502796] [2023-12-02 20:09:18,525 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85dc7eba-5142-4bce-bd57-2a255a3ad201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[502934,502947] [2023-12-02 20:09:18,526 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85dc7eba-5142-4bce-bd57-2a255a3ad201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[503082,503095] [2023-12-02 20:09:18,526 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85dc7eba-5142-4bce-bd57-2a255a3ad201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[503248,503261] [2023-12-02 20:09:18,527 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85dc7eba-5142-4bce-bd57-2a255a3ad201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[503417,503430] [2023-12-02 20:09:18,527 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85dc7eba-5142-4bce-bd57-2a255a3ad201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[503584,503597] [2023-12-02 20:09:18,528 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85dc7eba-5142-4bce-bd57-2a255a3ad201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[503752,503765] [2023-12-02 20:09:18,528 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85dc7eba-5142-4bce-bd57-2a255a3ad201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[503902,503915] [2023-12-02 20:09:18,528 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85dc7eba-5142-4bce-bd57-2a255a3ad201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[504049,504062] [2023-12-02 20:09:18,529 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85dc7eba-5142-4bce-bd57-2a255a3ad201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[504210,504223] [2023-12-02 20:09:18,529 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85dc7eba-5142-4bce-bd57-2a255a3ad201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[504380,504393] [2023-12-02 20:09:18,530 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85dc7eba-5142-4bce-bd57-2a255a3ad201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i[504542,504555] [2023-12-02 20:09:18,536 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 20:09:18,874 INFO L206 MainTranslator]: Completed translation [2023-12-02 20:09:18,874 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:09:18 WrapperNode [2023-12-02 20:09:18,875 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 20:09:18,876 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 20:09:18,876 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 20:09:18,876 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 20:09:18,884 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:09:18" (1/1) ... [2023-12-02 20:09:18,995 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:09:18" (1/1) ... [2023-12-02 20:09:19,254 INFO L138 Inliner]: procedures = 687, calls = 4641, calls flagged for inlining = 319, calls inlined = 209, statements flattened = 7667 [2023-12-02 20:09:19,255 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 20:09:19,256 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 20:09:19,256 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 20:09:19,256 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 20:09:19,268 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:09:18" (1/1) ... [2023-12-02 20:09:19,268 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:09:18" (1/1) ... [2023-12-02 20:09:19,300 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:09:18" (1/1) ... [2023-12-02 20:09:19,300 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:09:18" (1/1) ... [2023-12-02 20:09:19,449 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:09:18" (1/1) ... [2023-12-02 20:09:19,474 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:09:18" (1/1) ... [2023-12-02 20:09:19,513 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:09:18" (1/1) ... [2023-12-02 20:09:19,535 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:09:18" (1/1) ... [2023-12-02 20:09:19,586 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 20:09:19,587 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 20:09:19,587 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 20:09:19,588 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 20:09:19,588 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:09:18" (1/1) ... [2023-12-02 20:09:19,595 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 20:09:19,607 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85dc7eba-5142-4bce-bd57-2a255a3ad201/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 20:09:19,620 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85dc7eba-5142-4bce-bd57-2a255a3ad201/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 20:09:19,625 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85dc7eba-5142-4bce-bd57-2a255a3ad201/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 20:09:19,661 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2023-12-02 20:09:19,661 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2023-12-02 20:09:19,661 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_coherent_check_final_state [2023-12-02 20:09:19,661 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_coherent_check_final_state [2023-12-02 20:09:19,661 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_free_txskb [2023-12-02 20:09:19,662 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_free_txskb [2023-12-02 20:09:19,662 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-12-02 20:09:19,662 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-12-02 20:09:19,662 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_mmc_sdio_func_check_final_state [2023-12-02 20:09:19,662 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_mmc_sdio_func_check_final_state [2023-12-02 20:09:19,662 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_coherent_usb_alloc_coherent [2023-12-02 20:09:19,662 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_coherent_usb_alloc_coherent [2023-12-02 20:09:19,662 INFO L130 BoogieDeclarations]: Found specification of procedure ar5523_cancel_rx_cmd [2023-12-02 20:09:19,663 INFO L138 BoogieDeclarations]: Found implementation of procedure ar5523_cancel_rx_cmd [2023-12-02 20:09:19,663 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2023-12-02 20:09:19,663 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2023-12-02 20:09:19,663 INFO L130 BoogieDeclarations]: Found specification of procedure ar5523_get_capability [2023-12-02 20:09:19,663 INFO L138 BoogieDeclarations]: Found implementation of procedure ar5523_get_capability [2023-12-02 20:09:19,663 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2023-12-02 20:09:19,663 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2023-12-02 20:09:19,663 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_arch_io_check_final_state [2023-12-02 20:09:19,664 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_arch_io_check_final_state [2023-12-02 20:09:19,664 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_module_check_final_state [2023-12-02 20:09:19,664 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_module_check_final_state [2023-12-02 20:09:19,664 INFO L130 BoogieDeclarations]: Found specification of procedure ar5523_set_rxfilter [2023-12-02 20:09:19,664 INFO L138 BoogieDeclarations]: Found implementation of procedure ar5523_set_rxfilter [2023-12-02 20:09:19,664 INFO L130 BoogieDeclarations]: Found specification of procedure ar5523_start [2023-12-02 20:09:19,664 INFO L138 BoogieDeclarations]: Found implementation of procedure ar5523_start [2023-12-02 20:09:19,664 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_net_rtnetlink__double_lock [2023-12-02 20:09:19,665 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_net_rtnetlink__double_lock [2023-12-02 20:09:19,665 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2023-12-02 20:09:19,665 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2023-12-02 20:09:19,665 INFO L130 BoogieDeclarations]: Found specification of procedure ar5523_cmd_write [2023-12-02 20:09:19,665 INFO L138 BoogieDeclarations]: Found implementation of procedure ar5523_cmd_write [2023-12-02 20:09:19,665 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_rtnetlink_past_rtnl_lock [2023-12-02 20:09:19,665 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_rtnetlink_past_rtnl_lock [2023-12-02 20:09:19,665 INFO L130 BoogieDeclarations]: Found specification of procedure ar5523_get_status [2023-12-02 20:09:19,665 INFO L138 BoogieDeclarations]: Found implementation of procedure ar5523_get_status [2023-12-02 20:09:19,666 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2023-12-02 20:09:19,666 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2023-12-02 20:09:19,666 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2023-12-02 20:09:19,666 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2023-12-02 20:09:19,666 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_queue_check_final_state [2023-12-02 20:09:19,666 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_queue_check_final_state [2023-12-02 20:09:19,666 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2023-12-02 20:09:19,666 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2023-12-02 20:09:19,667 INFO L130 BoogieDeclarations]: Found specification of procedure ar5523_config [2023-12-02 20:09:19,667 INFO L138 BoogieDeclarations]: Found implementation of procedure ar5523_config [2023-12-02 20:09:19,667 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_spinlock_spin_lock_rx_data_list_lock_of_ar5523 [2023-12-02 20:09:19,667 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_spinlock_spin_lock_rx_data_list_lock_of_ar5523 [2023-12-02 20:09:19,667 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-02 20:09:19,667 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_work_sync [2023-12-02 20:09:19,667 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_work_sync [2023-12-02 20:09:19,667 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2023-12-02 20:09:19,667 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2023-12-02 20:09:19,668 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2023-12-02 20:09:19,668 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2023-12-02 20:09:19,668 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_request_check_final_state [2023-12-02 20:09:19,668 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_request_check_final_state [2023-12-02 20:09:19,668 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_queue_delayed_work [2023-12-02 20:09:19,668 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_queue_delayed_work [2023-12-02 20:09:19,668 INFO L130 BoogieDeclarations]: Found specification of procedure ar5523_data_tx_pkt_put [2023-12-02 20:09:19,668 INFO L138 BoogieDeclarations]: Found implementation of procedure ar5523_data_tx_pkt_put [2023-12-02 20:09:19,669 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-12-02 20:09:19,669 INFO L130 BoogieDeclarations]: Found specification of procedure ar5523_create_rateset [2023-12-02 20:09:19,669 INFO L138 BoogieDeclarations]: Found implementation of procedure ar5523_create_rateset [2023-12-02 20:09:19,669 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2023-12-02 20:09:19,669 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2023-12-02 20:09:19,669 INFO L130 BoogieDeclarations]: Found specification of procedure ar5523_set_ledsteady [2023-12-02 20:09:19,669 INFO L138 BoogieDeclarations]: Found implementation of procedure ar5523_set_ledsteady [2023-12-02 20:09:19,669 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-12-02 20:09:19,669 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_in_interrupt_context [2023-12-02 20:09:19,670 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_in_interrupt_context [2023-12-02 20:09:19,670 INFO L130 BoogieDeclarations]: Found specification of procedure _dev_info [2023-12-02 20:09:19,670 INFO L138 BoogieDeclarations]: Found implementation of procedure _dev_info [2023-12-02 20:09:19,670 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2023-12-02 20:09:19,670 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2023-12-02 20:09:19,670 INFO L130 BoogieDeclarations]: Found specification of procedure ar5523_free_rx_bufs [2023-12-02 20:09:19,670 INFO L138 BoogieDeclarations]: Found implementation of procedure ar5523_free_rx_bufs [2023-12-02 20:09:19,670 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_bh_check_final_state [2023-12-02 20:09:19,670 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_bh_check_final_state [2023-12-02 20:09:19,671 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-12-02 20:09:19,671 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_genhd_check_final_state [2023-12-02 20:09:19,671 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_genhd_check_final_state [2023-12-02 20:09:19,671 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_after_alloc [2023-12-02 20:09:19,671 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_after_alloc [2023-12-02 20:09:19,671 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2023-12-02 20:09:19,671 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2023-12-02 20:09:19,671 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_unlock_mutex_of_ar5523 [2023-12-02 20:09:19,672 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_unlock_mutex_of_ar5523 [2023-12-02 20:09:19,672 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_register_reset_error_counter [2023-12-02 20:09:19,672 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_register_reset_error_counter [2023-12-02 20:09:19,672 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2023-12-02 20:09:19,672 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2023-12-02 20:09:19,672 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2023-12-02 20:09:19,672 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2023-12-02 20:09:19,672 INFO L130 BoogieDeclarations]: Found specification of procedure ar5523_disconnect [2023-12-02 20:09:19,673 INFO L138 BoogieDeclarations]: Found implementation of procedure ar5523_disconnect [2023-12-02 20:09:19,673 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2023-12-02 20:09:19,673 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2023-12-02 20:09:19,673 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_lib_idr_check_final_state [2023-12-02 20:09:19,673 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_lib_idr_check_final_state [2023-12-02 20:09:19,673 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_dev_dbg [2023-12-02 20:09:19,673 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_dev_dbg [2023-12-02 20:09:19,673 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_srcu_check_final_state [2023-12-02 20:09:19,673 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_srcu_check_final_state [2023-12-02 20:09:19,674 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-12-02 20:09:19,674 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer [2023-12-02 20:09:19,674 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer [2023-12-02 20:09:19,674 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2023-12-02 20:09:19,674 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2023-12-02 20:09:19,674 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 20:09:19,674 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_free_hw [2023-12-02 20:09:19,674 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_free_hw [2023-12-02 20:09:19,674 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2023-12-02 20:09:19,675 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2023-12-02 20:09:19,675 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-12-02 20:09:19,675 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2023-12-02 20:09:19,675 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2023-12-02 20:09:19,675 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2023-12-02 20:09:19,675 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2023-12-02 20:09:19,675 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_alloc_irq_check_alloc_flags [2023-12-02 20:09:19,675 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_alloc_irq_check_alloc_flags [2023-12-02 20:09:19,675 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2023-12-02 20:09:19,676 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2023-12-02 20:09:19,676 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_queue_work [2023-12-02 20:09:19,676 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_queue_work [2023-12-02 20:09:19,676 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_register_reset_error_counter [2023-12-02 20:09:19,676 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_register_reset_error_counter [2023-12-02 20:09:19,676 INFO L130 BoogieDeclarations]: Found specification of procedure list_move [2023-12-02 20:09:19,676 INFO L138 BoogieDeclarations]: Found implementation of procedure list_move [2023-12-02 20:09:19,676 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2023-12-02 20:09:19,676 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2023-12-02 20:09:19,677 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_lock_mutex_of_ar5523 [2023-12-02 20:09:19,677 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_lock_mutex_of_ar5523 [2023-12-02 20:09:19,677 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 20:09:19,677 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 20:09:19,677 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2023-12-02 20:09:19,677 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2023-12-02 20:09:19,677 INFO L130 BoogieDeclarations]: Found specification of procedure ar5523_submit_rx_cmd [2023-12-02 20:09:19,677 INFO L138 BoogieDeclarations]: Found implementation of procedure ar5523_submit_rx_cmd [2023-12-02 20:09:19,677 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-12-02 20:09:19,677 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-12-02 20:09:19,678 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-12-02 20:09:19,678 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-12-02 20:09:19,678 INFO L130 BoogieDeclarations]: Found specification of procedure skb_push [2023-12-02 20:09:19,678 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_push [2023-12-02 20:09:19,678 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2023-12-02 20:09:19,678 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2023-12-02 20:09:19,678 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ieee80211_free_hw [2023-12-02 20:09:19,678 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ieee80211_free_hw [2023-12-02 20:09:19,678 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_143 [2023-12-02 20:09:19,678 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_143 [2023-12-02 20:09:19,679 INFO L130 BoogieDeclarations]: Found specification of procedure destroy_workqueue [2023-12-02 20:09:19,679 INFO L138 BoogieDeclarations]: Found implementation of procedure destroy_workqueue [2023-12-02 20:09:19,679 INFO L130 BoogieDeclarations]: Found specification of procedure ar5523_cmd_read [2023-12-02 20:09:19,679 INFO L138 BoogieDeclarations]: Found implementation of procedure ar5523_cmd_read [2023-12-02 20:09:19,679 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_unlock [2023-12-02 20:09:19,679 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_unlock [2023-12-02 20:09:19,679 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_131 [2023-12-02 20:09:19,679 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_131 [2023-12-02 20:09:19,679 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_bulk_urb [2023-12-02 20:09:19,680 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_bulk_urb [2023-12-02 20:09:19,680 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_spinlock_spin_lock_tx_data_list_lock_of_ar5523 [2023-12-02 20:09:19,680 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_spinlock_spin_lock_tx_data_list_lock_of_ar5523 [2023-12-02 20:09:19,680 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2023-12-02 20:09:19,680 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2023-12-02 20:09:19,680 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-12-02 20:09:19,680 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-12-02 20:09:19,680 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_sock_check_final_state [2023-12-02 20:09:19,680 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_sock_check_final_state [2023-12-02 20:09:19,680 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_urb_usb_free_urb [2023-12-02 20:09:19,681 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_urb_usb_free_urb [2023-12-02 20:09:19,681 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_gadget_check_final_state [2023-12-02 20:09:19,681 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_gadget_check_final_state [2023-12-02 20:09:19,681 INFO L130 BoogieDeclarations]: Found specification of procedure ar5523_free_rx_cmd [2023-12-02 20:09:19,681 INFO L138 BoogieDeclarations]: Found implementation of procedure ar5523_free_rx_cmd [2023-12-02 20:09:19,681 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-02 20:09:19,681 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2023-12-02 20:09:19,681 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2023-12-02 20:09:19,681 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_fs_sysfs_check_final_state [2023-12-02 20:09:19,681 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_fs_sysfs_check_final_state [2023-12-02 20:09:19,682 INFO L130 BoogieDeclarations]: Found specification of procedure ar5523_switch_chan [2023-12-02 20:09:19,682 INFO L138 BoogieDeclarations]: Found implementation of procedure ar5523_switch_chan [2023-12-02 20:09:19,682 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_find_sta [2023-12-02 20:09:19,682 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_find_sta [2023-12-02 20:09:19,682 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-12-02 20:09:19,682 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_coherent_usb_free_coherent [2023-12-02 20:09:19,682 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_coherent_usb_free_coherent [2023-12-02 20:09:19,682 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-12-02 20:09:19,682 INFO L130 BoogieDeclarations]: Found specification of procedure ar5523_tx_work_locked [2023-12-02 20:09:19,682 INFO L138 BoogieDeclarations]: Found implementation of procedure ar5523_tx_work_locked [2023-12-02 20:09:19,683 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2023-12-02 20:09:19,683 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2023-12-02 20:09:19,683 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2023-12-02 20:09:19,683 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2023-12-02 20:09:19,683 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_rtnetlink_check_final_state [2023-12-02 20:09:19,683 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_rtnetlink_check_final_state [2023-12-02 20:09:19,683 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_intfdata [2023-12-02 20:09:19,683 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_intfdata [2023-12-02 20:09:19,683 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2023-12-02 20:09:19,683 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2023-12-02 20:09:19,684 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2023-12-02 20:09:19,684 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2023-12-02 20:09:19,684 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2023-12-02 20:09:19,684 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2023-12-02 20:09:19,684 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_alloc_usb_lock_check_alloc_flags [2023-12-02 20:09:19,684 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_alloc_usb_lock_check_alloc_flags [2023-12-02 20:09:19,684 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_urb_usb_alloc_urb [2023-12-02 20:09:19,684 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_urb_usb_alloc_urb [2023-12-02 20:09:19,684 INFO L130 BoogieDeclarations]: Found specification of procedure usb_bulk_msg [2023-12-02 20:09:19,685 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_bulk_msg [2023-12-02 20:09:19,685 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_check_final_state [2023-12-02 20:09:19,685 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_check_final_state [2023-12-02 20:09:19,685 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2023-12-02 20:09:19,685 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2023-12-02 20:09:19,685 INFO L130 BoogieDeclarations]: Found specification of procedure ar5523_stop [2023-12-02 20:09:19,685 INFO L138 BoogieDeclarations]: Found implementation of procedure ar5523_stop [2023-12-02 20:09:19,685 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_urb_check_final_state [2023-12-02 20:09:19,685 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_urb_check_final_state [2023-12-02 20:09:19,685 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_linux_kernel_locking_spinlock_spin_lock [2023-12-02 20:09:19,686 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_linux_kernel_locking_spinlock_spin_lock [2023-12-02 20:09:19,686 INFO L130 BoogieDeclarations]: Found specification of procedure ar5523_flush_tx [2023-12-02 20:09:19,686 INFO L138 BoogieDeclarations]: Found implementation of procedure ar5523_flush_tx [2023-12-02 20:09:19,686 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2023-12-02 20:09:19,686 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2023-12-02 20:09:19,686 INFO L130 BoogieDeclarations]: Found specification of procedure ar5523_cancel_rx_bufs [2023-12-02 20:09:19,686 INFO L138 BoogieDeclarations]: Found implementation of procedure ar5523_cancel_rx_bufs [2023-12-02 20:09:19,686 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2023-12-02 20:09:19,686 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2023-12-02 20:09:19,687 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_rwlock_check_final_state [2023-12-02 20:09:19,687 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_rwlock_check_final_state [2023-12-02 20:09:19,687 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-12-02 20:09:19,687 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-12-02 20:09:19,687 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2023-12-02 20:09:19,687 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2023-12-02 20:09:19,687 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-12-02 20:09:19,687 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_fs_char_dev_check_final_state [2023-12-02 20:09:19,687 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_fs_char_dev_check_final_state [2023-12-02 20:09:19,687 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-12-02 20:09:19,688 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-12-02 20:09:19,688 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_drivers_base_class_check_final_state [2023-12-02 20:09:19,688 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_drivers_base_class_check_final_state [2023-12-02 20:09:19,688 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2023-12-02 20:09:19,688 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2023-12-02 20:09:19,688 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_lock [2023-12-02 20:09:19,688 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_lock [2023-12-02 20:09:19,688 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec [2023-12-02 20:09:19,688 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec [2023-12-02 20:09:19,689 INFO L130 BoogieDeclarations]: Found specification of procedure ar5523_free_tx_cmd [2023-12-02 20:09:19,689 INFO L138 BoogieDeclarations]: Found implementation of procedure ar5523_free_tx_cmd [2023-12-02 20:09:19,689 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2023-12-02 20:09:19,689 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2023-12-02 20:09:19,689 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_add_return [2023-12-02 20:09:19,689 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_add_return [2023-12-02 20:09:19,689 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_sched_check_final_state [2023-12-02 20:09:19,689 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_sched_check_final_state [2023-12-02 20:09:19,689 INFO L130 BoogieDeclarations]: Found specification of procedure init_timer_key [2023-12-02 20:09:19,690 INFO L138 BoogieDeclarations]: Found implementation of procedure init_timer_key [2023-12-02 20:09:19,690 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_rtnetlink_past_rtnl_unlock [2023-12-02 20:09:19,690 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_rtnetlink_past_rtnl_unlock [2023-12-02 20:09:19,690 INFO L130 BoogieDeclarations]: Found specification of procedure delayed_work_timer_fn [2023-12-02 20:09:19,690 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 20:09:19,690 INFO L130 BoogieDeclarations]: Found specification of procedure ar5523_cmd [2023-12-02 20:09:19,690 INFO L138 BoogieDeclarations]: Found implementation of procedure ar5523_cmd [2023-12-02 20:09:19,690 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work [2023-12-02 20:09:19,690 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work [2023-12-02 20:09:19,690 INFO L130 BoogieDeclarations]: Found specification of procedure IEEE80211_SKB_CB [2023-12-02 20:09:19,691 INFO L138 BoogieDeclarations]: Found implementation of procedure IEEE80211_SKB_CB [2023-12-02 20:09:20,502 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 20:09:20,507 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 20:09:20,773 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-12-02 20:09:28,353 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 20:09:29,141 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 20:09:29,141 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-12-02 20:09:29,143 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 08:09:29 BoogieIcfgContainer [2023-12-02 20:09:29,144 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 20:09:29,146 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 20:09:29,146 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 20:09:29,148 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 20:09:29,149 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 08:09:12" (1/3) ... [2023-12-02 20:09:29,149 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4842621 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 08:09:29, skipping insertion in model container [2023-12-02 20:09:29,149 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:09:18" (2/3) ... [2023-12-02 20:09:29,150 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4842621 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 08:09:29, skipping insertion in model container [2023-12-02 20:09:29,150 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 08:09:29" (3/3) ... [2023-12-02 20:09:29,151 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.0-rc1---drivers--net--wireless--ath--ar5523--ar5523.ko.cil.i [2023-12-02 20:09:29,169 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 20:09:29,170 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 34 error locations. [2023-12-02 20:09:29,254 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 20:09:29,260 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;@1dde6c19, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 20:09:29,260 INFO L358 AbstractCegarLoop]: Starting to check reachability of 34 error locations. [2023-12-02 20:09:29,272 INFO L276 IsEmpty]: Start isEmpty. Operand has 1803 states, 1021 states have (on average 1.2722820763956906) internal successors, (1299), 1076 states have internal predecessors, (1299), 622 states have call successors, (622), 126 states have call predecessors, (622), 125 states have return successors, (618), 616 states have call predecessors, (618), 618 states have call successors, (618) [2023-12-02 20:09:29,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2023-12-02 20:09:29,283 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 20:09:29,283 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] [2023-12-02 20:09:29,284 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_linux_arch_io_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2023-12-02 20:09:29,289 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 20:09:29,290 INFO L85 PathProgramCache]: Analyzing trace with hash 1663267969, now seen corresponding path program 1 times [2023-12-02 20:09:29,301 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 20:09:29,301 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [831984269] [2023-12-02 20:09:29,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 20:09:29,302 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 20:09:39,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 20:09:41,182 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 20:09:41,183 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 20:09:41,183 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [831984269] [2023-12-02 20:09:41,184 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [831984269] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 20:09:41,184 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 20:09:41,184 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-02 20:09:41,185 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1739114886] [2023-12-02 20:09:41,186 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 20:09:41,190 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 20:09:41,190 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 20:09:41,218 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 20:09:41,219 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-02 20:09:41,226 INFO L87 Difference]: Start difference. First operand has 1803 states, 1021 states have (on average 1.2722820763956906) internal successors, (1299), 1076 states have internal predecessors, (1299), 622 states have call successors, (622), 126 states have call predecessors, (622), 125 states have return successors, (618), 616 states have call predecessors, (618), 618 states have call successors, (618) Second operand has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (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 20:09:43,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 20:09:43,304 INFO L93 Difference]: Finished difference Result 3544 states and 5189 transitions. [2023-12-02 20:09:43,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 20:09:43,307 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (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 51 [2023-12-02 20:09:43,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 20:09:43,343 INFO L225 Difference]: With dead ends: 3544 [2023-12-02 20:09:43,343 INFO L226 Difference]: Without dead ends: 1789 [2023-12-02 20:09:43,363 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 20:09:43,367 INFO L413 NwaCegarLoop]: 2286 mSDtfsCounter, 2481 mSDsluCounter, 2286 mSDsCounter, 0 mSdLazyCounter, 430 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2481 SdHoareTripleChecker+Valid, 4572 SdHoareTripleChecker+Invalid, 430 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 430 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2023-12-02 20:09:43,368 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2481 Valid, 4572 Invalid, 430 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 430 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2023-12-02 20:09:43,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1789 states. [2023-12-02 20:09:43,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1789 to 1789. [2023-12-02 20:09:43,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1789 states, 1014 states have (on average 1.2357001972386588) internal successors, (1253), 1065 states have internal predecessors, (1253), 618 states have call successors, (618), 125 states have call predecessors, (618), 124 states have return successors, (616), 614 states have call predecessors, (616), 616 states have call successors, (616) [2023-12-02 20:09:43,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1789 states to 1789 states and 2487 transitions. [2023-12-02 20:09:43,590 INFO L78 Accepts]: Start accepts. Automaton has 1789 states and 2487 transitions. Word has length 51 [2023-12-02 20:09:43,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 20:09:43,592 INFO L495 AbstractCegarLoop]: Abstraction has 1789 states and 2487 transitions. [2023-12-02 20:09:43,592 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (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 20:09:43,593 INFO L276 IsEmpty]: Start isEmpty. Operand 1789 states and 2487 transitions. [2023-12-02 20:09:43,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2023-12-02 20:09:43,596 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 20:09:43,596 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] [2023-12-02 20:09:43,597 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-02 20:09:43,597 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_linux_block_genhd_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2023-12-02 20:09:43,597 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 20:09:43,598 INFO L85 PathProgramCache]: Analyzing trace with hash 615175085, now seen corresponding path program 1 times [2023-12-02 20:09:43,598 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 20:09:43,598 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [410314781] [2023-12-02 20:09:43,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 20:09:43,598 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 20:09:53,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 20:09:55,036 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 20:09:55,037 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 20:09:55,037 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [410314781] [2023-12-02 20:09:55,037 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [410314781] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 20:09:55,037 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 20:09:55,038 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-02 20:09:55,038 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1038085432] [2023-12-02 20:09:55,038 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 20:09:55,039 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 20:09:55,040 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 20:09:55,040 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 20:09:55,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-02 20:09:55,041 INFO L87 Difference]: Start difference. First operand 1789 states and 2487 transitions. Second operand has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (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 20:09:57,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 20:09:57,079 INFO L93 Difference]: Finished difference Result 1789 states and 2487 transitions. [2023-12-02 20:09:57,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 20:09:57,080 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (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 56 [2023-12-02 20:09:57,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 20:09:57,098 INFO L225 Difference]: With dead ends: 1789 [2023-12-02 20:09:57,099 INFO L226 Difference]: Without dead ends: 1787 [2023-12-02 20:09:57,100 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-02 20:09:57,102 INFO L413 NwaCegarLoop]: 2270 mSDtfsCounter, 2463 mSDsluCounter, 2270 mSDsCounter, 0 mSdLazyCounter, 428 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2463 SdHoareTripleChecker+Valid, 4540 SdHoareTripleChecker+Invalid, 428 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 428 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2023-12-02 20:09:57,102 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2463 Valid, 4540 Invalid, 428 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 428 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2023-12-02 20:09:57,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1787 states. [2023-12-02 20:09:57,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1787 to 1787. [2023-12-02 20:09:57,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1787 states, 1013 states have (on average 1.2349457058242843) internal successors, (1251), 1063 states have internal predecessors, (1251), 618 states have call successors, (618), 125 states have call predecessors, (618), 124 states have return successors, (616), 614 states have call predecessors, (616), 616 states have call successors, (616) [2023-12-02 20:09:57,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1787 states to 1787 states and 2485 transitions. [2023-12-02 20:09:57,256 INFO L78 Accepts]: Start accepts. Automaton has 1787 states and 2485 transitions. Word has length 56 [2023-12-02 20:09:57,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 20:09:57,257 INFO L495 AbstractCegarLoop]: Abstraction has 1787 states and 2485 transitions. [2023-12-02 20:09:57,257 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (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 20:09:57,257 INFO L276 IsEmpty]: Start isEmpty. Operand 1787 states and 2485 transitions. [2023-12-02 20:09:57,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2023-12-02 20:09:57,260 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 20:09:57,261 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] [2023-12-02 20:09:57,261 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-02 20:09:57,261 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_linux_block_queue_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2023-12-02 20:09:57,262 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 20:09:57,262 INFO L85 PathProgramCache]: Analyzing trace with hash 1342527283, now seen corresponding path program 1 times [2023-12-02 20:09:57,262 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 20:09:57,262 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [950802274] [2023-12-02 20:09:57,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 20:09:57,263 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 20:10:07,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 20:10:08,303 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 20:10:08,303 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 20:10:08,304 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [950802274] [2023-12-02 20:10:08,304 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [950802274] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 20:10:08,304 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 20:10:08,304 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-02 20:10:08,304 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1536557308] [2023-12-02 20:10:08,304 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 20:10:08,305 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 20:10:08,305 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 20:10:08,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 20:10:08,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-02 20:10:08,306 INFO L87 Difference]: Start difference. First operand 1787 states and 2485 transitions. Second operand has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 2 states have call successors, (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 20:10:10,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 20:10:10,191 INFO L93 Difference]: Finished difference Result 1787 states and 2485 transitions. [2023-12-02 20:10:10,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 20:10:10,192 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 2 states have call successors, (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 61 [2023-12-02 20:10:10,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 20:10:10,205 INFO L225 Difference]: With dead ends: 1787 [2023-12-02 20:10:10,205 INFO L226 Difference]: Without dead ends: 1785 [2023-12-02 20:10:10,207 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 20:10:10,208 INFO L413 NwaCegarLoop]: 2268 mSDtfsCounter, 2460 mSDsluCounter, 2268 mSDsCounter, 0 mSdLazyCounter, 428 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2460 SdHoareTripleChecker+Valid, 4536 SdHoareTripleChecker+Invalid, 428 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 428 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2023-12-02 20:10:10,208 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2460 Valid, 4536 Invalid, 428 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 428 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2023-12-02 20:10:10,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1785 states. [2023-12-02 20:10:10,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1785 to 1785. [2023-12-02 20:10:10,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1785 states, 1012 states have (on average 1.2341897233201582) internal successors, (1249), 1061 states have internal predecessors, (1249), 618 states have call successors, (618), 125 states have call predecessors, (618), 124 states have return successors, (616), 614 states have call predecessors, (616), 616 states have call successors, (616) [2023-12-02 20:10:10,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1785 states to 1785 states and 2483 transitions. [2023-12-02 20:10:10,311 INFO L78 Accepts]: Start accepts. Automaton has 1785 states and 2483 transitions. Word has length 61 [2023-12-02 20:10:10,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 20:10:10,311 INFO L495 AbstractCegarLoop]: Abstraction has 1785 states and 2483 transitions. [2023-12-02 20:10:10,311 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 2 states have call successors, (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 20:10:10,312 INFO L276 IsEmpty]: Start isEmpty. Operand 1785 states and 2483 transitions. [2023-12-02 20:10:10,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2023-12-02 20:10:10,314 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 20:10:10,314 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] [2023-12-02 20:10:10,314 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-02 20:10:10,315 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_linux_block_request_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2023-12-02 20:10:10,315 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 20:10:10,316 INFO L85 PathProgramCache]: Analyzing trace with hash -1149342994, now seen corresponding path program 1 times [2023-12-02 20:10:10,316 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 20:10:10,316 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1267891329] [2023-12-02 20:10:10,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 20:10:10,316 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 20:10:20,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 20:10:20,932 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 20:10:20,933 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 20:10:20,933 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1267891329] [2023-12-02 20:10:20,933 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1267891329] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 20:10:20,934 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 20:10:20,934 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-02 20:10:20,934 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1306671511] [2023-12-02 20:10:20,934 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 20:10:20,934 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 20:10:20,935 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 20:10:20,935 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 20:10:20,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-02 20:10:20,936 INFO L87 Difference]: Start difference. First operand 1785 states and 2483 transitions. Second operand has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (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 20:10:22,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 20:10:22,752 INFO L93 Difference]: Finished difference Result 1785 states and 2483 transitions. [2023-12-02 20:10:22,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 20:10:22,752 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (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 66 [2023-12-02 20:10:22,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 20:10:22,766 INFO L225 Difference]: With dead ends: 1785 [2023-12-02 20:10:22,766 INFO L226 Difference]: Without dead ends: 1783 [2023-12-02 20:10:22,767 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 20:10:22,768 INFO L413 NwaCegarLoop]: 2266 mSDtfsCounter, 2457 mSDsluCounter, 2266 mSDsCounter, 0 mSdLazyCounter, 428 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2457 SdHoareTripleChecker+Valid, 4532 SdHoareTripleChecker+Invalid, 428 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 428 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2023-12-02 20:10:22,769 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2457 Valid, 4532 Invalid, 428 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 428 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2023-12-02 20:10:22,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1783 states. [2023-12-02 20:10:22,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1783 to 1783. [2023-12-02 20:10:22,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1783 states, 1011 states have (on average 1.2334322453016815) internal successors, (1247), 1059 states have internal predecessors, (1247), 618 states have call successors, (618), 125 states have call predecessors, (618), 124 states have return successors, (616), 614 states have call predecessors, (616), 616 states have call successors, (616) [2023-12-02 20:10:22,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1783 states to 1783 states and 2481 transitions. [2023-12-02 20:10:22,888 INFO L78 Accepts]: Start accepts. Automaton has 1783 states and 2481 transitions. Word has length 66 [2023-12-02 20:10:22,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 20:10:22,889 INFO L495 AbstractCegarLoop]: Abstraction has 1783 states and 2481 transitions. [2023-12-02 20:10:22,889 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (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 20:10:22,889 INFO L276 IsEmpty]: Start isEmpty. Operand 1783 states and 2481 transitions. [2023-12-02 20:10:22,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2023-12-02 20:10:22,891 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 20:10:22,891 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] [2023-12-02 20:10:22,892 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-02 20:10:22,892 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_linux_drivers_base_class_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2023-12-02 20:10:22,893 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 20:10:22,893 INFO L85 PathProgramCache]: Analyzing trace with hash 25781688, now seen corresponding path program 1 times [2023-12-02 20:10:22,893 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 20:10:22,893 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1554730410] [2023-12-02 20:10:22,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 20:10:22,894 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 20:10:32,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 20:10:33,557 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 20:10:33,558 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 20:10:33,558 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1554730410] [2023-12-02 20:10:33,558 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1554730410] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 20:10:33,558 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 20:10:33,559 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-02 20:10:33,559 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1260456261] [2023-12-02 20:10:33,559 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 20:10:33,560 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 20:10:33,560 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 20:10:33,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 20:10:33,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-02 20:10:33,561 INFO L87 Difference]: Start difference. First operand 1783 states and 2481 transitions. Second operand has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (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 20:10:35,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 20:10:35,516 INFO L93 Difference]: Finished difference Result 1783 states and 2481 transitions. [2023-12-02 20:10:35,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 20:10:35,517 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (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 71 [2023-12-02 20:10:35,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 20:10:35,529 INFO L225 Difference]: With dead ends: 1783 [2023-12-02 20:10:35,529 INFO L226 Difference]: Without dead ends: 1781 [2023-12-02 20:10:35,530 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 20:10:35,531 INFO L413 NwaCegarLoop]: 2264 mSDtfsCounter, 2454 mSDsluCounter, 2264 mSDsCounter, 0 mSdLazyCounter, 428 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2454 SdHoareTripleChecker+Valid, 4528 SdHoareTripleChecker+Invalid, 428 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 428 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2023-12-02 20:10:35,531 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2454 Valid, 4528 Invalid, 428 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 428 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2023-12-02 20:10:35,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1781 states. [2023-12-02 20:10:35,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1781 to 1781. [2023-12-02 20:10:35,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1781 states, 1010 states have (on average 1.2326732673267327) internal successors, (1245), 1057 states have internal predecessors, (1245), 618 states have call successors, (618), 125 states have call predecessors, (618), 124 states have return successors, (616), 614 states have call predecessors, (616), 616 states have call successors, (616) [2023-12-02 20:10:35,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1781 states to 1781 states and 2479 transitions. [2023-12-02 20:10:35,639 INFO L78 Accepts]: Start accepts. Automaton has 1781 states and 2479 transitions. Word has length 71 [2023-12-02 20:10:35,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 20:10:35,639 INFO L495 AbstractCegarLoop]: Abstraction has 1781 states and 2479 transitions. [2023-12-02 20:10:35,640 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (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 20:10:35,640 INFO L276 IsEmpty]: Start isEmpty. Operand 1781 states and 2479 transitions. [2023-12-02 20:10:35,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2023-12-02 20:10:35,641 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 20:10:35,642 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] [2023-12-02 20:10:35,642 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-02 20:10:35,642 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_linux_fs_char_dev_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2023-12-02 20:10:35,642 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 20:10:35,642 INFO L85 PathProgramCache]: Analyzing trace with hash 1051666380, now seen corresponding path program 1 times [2023-12-02 20:10:35,642 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 20:10:35,642 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2087527265] [2023-12-02 20:10:35,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 20:10:35,643 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 20:10:44,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 20:10:44,854 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 20:10:44,855 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 20:10:44,855 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2087527265] [2023-12-02 20:10:44,855 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2087527265] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 20:10:44,855 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 20:10:44,855 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-02 20:10:44,855 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1520157926] [2023-12-02 20:10:44,855 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 20:10:44,856 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 20:10:44,856 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 20:10:44,856 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 20:10:44,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-02 20:10:44,857 INFO L87 Difference]: Start difference. First operand 1781 states and 2479 transitions. Second operand has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (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 20:10:46,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 20:10:46,177 INFO L93 Difference]: Finished difference Result 1781 states and 2479 transitions. [2023-12-02 20:10:46,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 20:10:46,177 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (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 76 [2023-12-02 20:10:46,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 20:10:46,189 INFO L225 Difference]: With dead ends: 1781 [2023-12-02 20:10:46,189 INFO L226 Difference]: Without dead ends: 1779 [2023-12-02 20:10:46,190 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 20:10:46,191 INFO L413 NwaCegarLoop]: 2262 mSDtfsCounter, 2451 mSDsluCounter, 2262 mSDsCounter, 0 mSdLazyCounter, 428 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2451 SdHoareTripleChecker+Valid, 4524 SdHoareTripleChecker+Invalid, 428 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 428 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-12-02 20:10:46,191 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2451 Valid, 4524 Invalid, 428 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 428 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-12-02 20:10:46,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1779 states. [2023-12-02 20:10:46,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1779 to 1779. [2023-12-02 20:10:46,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1779 states, 1009 states have (on average 1.2319127849355798) internal successors, (1243), 1055 states have internal predecessors, (1243), 618 states have call successors, (618), 125 states have call predecessors, (618), 124 states have return successors, (616), 614 states have call predecessors, (616), 616 states have call successors, (616) [2023-12-02 20:10:46,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1779 states to 1779 states and 2477 transitions. [2023-12-02 20:10:46,339 INFO L78 Accepts]: Start accepts. Automaton has 1779 states and 2477 transitions. Word has length 76 [2023-12-02 20:10:46,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 20:10:46,340 INFO L495 AbstractCegarLoop]: Abstraction has 1779 states and 2477 transitions. [2023-12-02 20:10:46,340 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (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 20:10:46,340 INFO L276 IsEmpty]: Start isEmpty. Operand 1779 states and 2477 transitions. [2023-12-02 20:10:46,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-12-02 20:10:46,342 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 20:10:46,342 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] [2023-12-02 20:10:46,342 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-02 20:10:46,342 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2023-12-02 20:10:46,343 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 20:10:46,343 INFO L85 PathProgramCache]: Analyzing trace with hash -137798325, now seen corresponding path program 1 times [2023-12-02 20:10:46,343 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 20:10:46,343 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [965962595] [2023-12-02 20:10:46,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 20:10:46,343 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 20:10:54,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 20:10:55,286 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 20:10:55,286 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 20:10:55,286 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [965962595] [2023-12-02 20:10:55,286 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [965962595] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 20:10:55,286 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 20:10:55,286 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-02 20:10:55,286 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [834383308] [2023-12-02 20:10:55,287 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 20:10:55,287 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 20:10:55,287 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 20:10:55,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 20:10:55,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-02 20:10:55,288 INFO L87 Difference]: Start difference. First operand 1779 states and 2477 transitions. Second operand has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (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 20:10:56,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 20:10:56,713 INFO L93 Difference]: Finished difference Result 1779 states and 2477 transitions. [2023-12-02 20:10:56,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 20:10:56,713 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (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 81 [2023-12-02 20:10:56,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 20:10:56,724 INFO L225 Difference]: With dead ends: 1779 [2023-12-02 20:10:56,724 INFO L226 Difference]: Without dead ends: 1777 [2023-12-02 20:10:56,725 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 20:10:56,725 INFO L413 NwaCegarLoop]: 2260 mSDtfsCounter, 2448 mSDsluCounter, 2260 mSDsCounter, 0 mSdLazyCounter, 428 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2448 SdHoareTripleChecker+Valid, 4520 SdHoareTripleChecker+Invalid, 428 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 428 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-12-02 20:10:56,726 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2448 Valid, 4520 Invalid, 428 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 428 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-12-02 20:10:56,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1777 states. [2023-12-02 20:10:56,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1777 to 1777. [2023-12-02 20:10:56,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1777 states, 1008 states have (on average 1.2311507936507937) internal successors, (1241), 1053 states have internal predecessors, (1241), 618 states have call successors, (618), 125 states have call predecessors, (618), 124 states have return successors, (616), 614 states have call predecessors, (616), 616 states have call successors, (616) [2023-12-02 20:10:56,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1777 states to 1777 states and 2475 transitions. [2023-12-02 20:10:56,884 INFO L78 Accepts]: Start accepts. Automaton has 1777 states and 2475 transitions. Word has length 81 [2023-12-02 20:10:56,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 20:10:56,884 INFO L495 AbstractCegarLoop]: Abstraction has 1777 states and 2475 transitions. [2023-12-02 20:10:56,885 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (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 20:10:56,885 INFO L276 IsEmpty]: Start isEmpty. Operand 1777 states and 2475 transitions. [2023-12-02 20:10:56,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2023-12-02 20:10:56,886 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 20:10:56,887 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] [2023-12-02 20:10:56,887 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-02 20:10:56,887 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_linux_kernel_locking_rwlock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2023-12-02 20:10:56,888 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 20:10:56,888 INFO L85 PathProgramCache]: Analyzing trace with hash -749436209, now seen corresponding path program 1 times [2023-12-02 20:10:56,888 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 20:10:56,888 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1999691408] [2023-12-02 20:10:56,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 20:10:56,889 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 20:11:05,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 20:11:06,017 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 20:11:06,017 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 20:11:06,018 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1999691408] [2023-12-02 20:11:06,018 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1999691408] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 20:11:06,018 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 20:11:06,018 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-02 20:11:06,018 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1497081053] [2023-12-02 20:11:06,018 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 20:11:06,019 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 20:11:06,019 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 20:11:06,019 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 20:11:06,019 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-02 20:11:06,020 INFO L87 Difference]: Start difference. First operand 1777 states and 2475 transitions. Second operand has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (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 20:11:07,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 20:11:07,362 INFO L93 Difference]: Finished difference Result 1777 states and 2475 transitions. [2023-12-02 20:11:07,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 20:11:07,362 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (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 86 [2023-12-02 20:11:07,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 20:11:07,374 INFO L225 Difference]: With dead ends: 1777 [2023-12-02 20:11:07,374 INFO L226 Difference]: Without dead ends: 1775 [2023-12-02 20:11:07,375 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 20:11:07,376 INFO L413 NwaCegarLoop]: 2258 mSDtfsCounter, 2445 mSDsluCounter, 2257 mSDsCounter, 0 mSdLazyCounter, 429 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2445 SdHoareTripleChecker+Valid, 4515 SdHoareTripleChecker+Invalid, 429 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 429 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-12-02 20:11:07,376 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2445 Valid, 4515 Invalid, 429 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 429 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-12-02 20:11:07,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1775 states. [2023-12-02 20:11:07,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1775 to 1775. [2023-12-02 20:11:07,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1775 states, 1007 states have (on average 1.2303872889771599) internal successors, (1239), 1051 states have internal predecessors, (1239), 618 states have call successors, (618), 125 states have call predecessors, (618), 124 states have return successors, (616), 614 states have call predecessors, (616), 616 states have call successors, (616) [2023-12-02 20:11:07,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1775 states to 1775 states and 2473 transitions. [2023-12-02 20:11:07,548 INFO L78 Accepts]: Start accepts. Automaton has 1775 states and 2473 transitions. Word has length 86 [2023-12-02 20:11:07,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 20:11:07,548 INFO L495 AbstractCegarLoop]: Abstraction has 1775 states and 2473 transitions. [2023-12-02 20:11:07,549 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (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 20:11:07,549 INFO L276 IsEmpty]: Start isEmpty. Operand 1775 states and 2473 transitions. [2023-12-02 20:11:07,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2023-12-02 20:11:07,550 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 20:11:07,551 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 20:11:07,551 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-02 20:11:07,551 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_linux_kernel_locking_rwlock_check_final_stateErr1ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2023-12-02 20:11:07,551 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 20:11:07,552 INFO L85 PathProgramCache]: Analyzing trace with hash 1346449266, now seen corresponding path program 1 times [2023-12-02 20:11:07,552 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 20:11:07,552 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1728507519] [2023-12-02 20:11:07,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 20:11:07,552 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 20:11:16,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 20:11:16,789 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 20:11:16,789 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 20:11:16,789 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1728507519] [2023-12-02 20:11:16,789 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1728507519] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 20:11:16,789 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 20:11:16,790 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-02 20:11:16,790 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [310075731] [2023-12-02 20:11:16,790 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 20:11:16,790 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 20:11:16,790 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 20:11:16,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 20:11:16,791 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-02 20:11:16,791 INFO L87 Difference]: Start difference. First operand 1775 states and 2473 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 20:11:18,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 20:11:18,119 INFO L93 Difference]: Finished difference Result 1775 states and 2473 transitions. [2023-12-02 20:11:18,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 20:11:18,120 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 20:11:18,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 20:11:18,128 INFO L225 Difference]: With dead ends: 1775 [2023-12-02 20:11:18,129 INFO L226 Difference]: Without dead ends: 1773 [2023-12-02 20:11:18,129 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 20:11:18,130 INFO L413 NwaCegarLoop]: 2256 mSDtfsCounter, 2441 mSDsluCounter, 2256 mSDsCounter, 0 mSdLazyCounter, 428 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2441 SdHoareTripleChecker+Valid, 4512 SdHoareTripleChecker+Invalid, 428 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 428 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-12-02 20:11:18,130 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2441 Valid, 4512 Invalid, 428 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 428 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-12-02 20:11:18,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1773 states. [2023-12-02 20:11:18,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1773 to 1773. [2023-12-02 20:11:18,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1773 states, 1006 states have (on average 1.2296222664015906) internal successors, (1237), 1049 states have internal predecessors, (1237), 618 states have call successors, (618), 125 states have call predecessors, (618), 124 states have return successors, (616), 614 states have call predecessors, (616), 616 states have call successors, (616) [2023-12-02 20:11:18,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1773 states to 1773 states and 2471 transitions. [2023-12-02 20:11:18,251 INFO L78 Accepts]: Start accepts. Automaton has 1773 states and 2471 transitions. Word has length 88 [2023-12-02 20:11:18,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 20:11:18,251 INFO L495 AbstractCegarLoop]: Abstraction has 1773 states and 2471 transitions. [2023-12-02 20:11:18,252 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 20:11:18,253 INFO L276 IsEmpty]: Start isEmpty. Operand 1773 states and 2471 transitions. [2023-12-02 20:11:18,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-12-02 20:11:18,254 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 20:11:18,254 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] [2023-12-02 20:11:18,254 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-12-02 20:11:18,254 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_linux_kernel_module_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2023-12-02 20:11:18,255 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 20:11:18,255 INFO L85 PathProgramCache]: Analyzing trace with hash 59165624, now seen corresponding path program 1 times [2023-12-02 20:11:18,255 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 20:11:18,255 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2032830991] [2023-12-02 20:11:18,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 20:11:18,255 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 20:11:26,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 20:11:27,540 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 20:11:27,540 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 20:11:27,540 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2032830991] [2023-12-02 20:11:27,540 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2032830991] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 20:11:27,541 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 20:11:27,541 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-02 20:11:27,541 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [111195499] [2023-12-02 20:11:27,541 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 20:11:27,541 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 20:11:27,542 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 20:11:27,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 20:11:27,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-02 20:11:27,543 INFO L87 Difference]: Start difference. First operand 1773 states and 2471 transitions. Second operand has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (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 20:11:28,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 20:11:28,980 INFO L93 Difference]: Finished difference Result 1773 states and 2471 transitions. [2023-12-02 20:11:28,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 20:11:28,981 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (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 93 [2023-12-02 20:11:28,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 20:11:28,993 INFO L225 Difference]: With dead ends: 1773 [2023-12-02 20:11:28,993 INFO L226 Difference]: Without dead ends: 1771 [2023-12-02 20:11:28,994 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 20:11:28,995 INFO L413 NwaCegarLoop]: 2254 mSDtfsCounter, 2440 mSDsluCounter, 2254 mSDsCounter, 0 mSdLazyCounter, 428 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2440 SdHoareTripleChecker+Valid, 4508 SdHoareTripleChecker+Invalid, 428 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 428 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-12-02 20:11:28,995 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2440 Valid, 4508 Invalid, 428 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 428 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-12-02 20:11:28,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1771 states. [2023-12-02 20:11:29,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1771 to 1771. [2023-12-02 20:11:29,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1771 states, 1005 states have (on average 1.228855721393035) internal successors, (1235), 1047 states have internal predecessors, (1235), 618 states have call successors, (618), 125 states have call predecessors, (618), 124 states have return successors, (616), 614 states have call predecessors, (616), 616 states have call successors, (616) [2023-12-02 20:11:29,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1771 states to 1771 states and 2469 transitions. [2023-12-02 20:11:29,171 INFO L78 Accepts]: Start accepts. Automaton has 1771 states and 2469 transitions. Word has length 93 [2023-12-02 20:11:29,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 20:11:29,171 INFO L495 AbstractCegarLoop]: Abstraction has 1771 states and 2469 transitions. [2023-12-02 20:11:29,172 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (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 20:11:29,172 INFO L276 IsEmpty]: Start isEmpty. Operand 1771 states and 2469 transitions. [2023-12-02 20:11:29,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-12-02 20:11:29,173 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 20:11:29,173 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] [2023-12-02 20:11:29,174 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-12-02 20:11:29,174 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_linux_kernel_rcu_update_lock_bh_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2023-12-02 20:11:29,174 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 20:11:29,174 INFO L85 PathProgramCache]: Analyzing trace with hash 197322115, now seen corresponding path program 1 times [2023-12-02 20:11:29,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 20:11:29,175 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2030904359] [2023-12-02 20:11:29,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 20:11:29,175 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 20:11:37,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 20:11:38,600 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 20:11:38,600 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 20:11:38,600 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2030904359] [2023-12-02 20:11:38,600 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2030904359] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 20:11:38,600 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 20:11:38,601 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-02 20:11:38,601 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [932257561] [2023-12-02 20:11:38,601 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 20:11:38,601 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 20:11:38,601 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 20:11:38,602 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 20:11:38,602 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-02 20:11:38,602 INFO L87 Difference]: Start difference. First operand 1771 states and 2469 transitions. Second operand has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (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 20:11:40,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 20:11:40,071 INFO L93 Difference]: Finished difference Result 1771 states and 2469 transitions. [2023-12-02 20:11:40,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 20:11:40,072 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (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 98 [2023-12-02 20:11:40,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 20:11:40,082 INFO L225 Difference]: With dead ends: 1771 [2023-12-02 20:11:40,082 INFO L226 Difference]: Without dead ends: 1769 [2023-12-02 20:11:40,083 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 20:11:40,083 INFO L413 NwaCegarLoop]: 2252 mSDtfsCounter, 2437 mSDsluCounter, 2252 mSDsCounter, 0 mSdLazyCounter, 428 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2437 SdHoareTripleChecker+Valid, 4504 SdHoareTripleChecker+Invalid, 428 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 428 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-12-02 20:11:40,083 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2437 Valid, 4504 Invalid, 428 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 428 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-12-02 20:11:40,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1769 states. [2023-12-02 20:11:40,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1769 to 1769. [2023-12-02 20:11:40,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1769 states, 1004 states have (on average 1.2280876494023905) internal successors, (1233), 1045 states have internal predecessors, (1233), 618 states have call successors, (618), 125 states have call predecessors, (618), 124 states have return successors, (616), 614 states have call predecessors, (616), 616 states have call successors, (616) [2023-12-02 20:11:40,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1769 states to 1769 states and 2467 transitions. [2023-12-02 20:11:40,209 INFO L78 Accepts]: Start accepts. Automaton has 1769 states and 2467 transitions. Word has length 98 [2023-12-02 20:11:40,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 20:11:40,209 INFO L495 AbstractCegarLoop]: Abstraction has 1769 states and 2467 transitions. [2023-12-02 20:11:40,209 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (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 20:11:40,209 INFO L276 IsEmpty]: Start isEmpty. Operand 1769 states and 2467 transitions. [2023-12-02 20:11:40,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2023-12-02 20:11:40,211 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 20:11:40,211 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] [2023-12-02 20:11:40,211 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-12-02 20:11:40,212 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2023-12-02 20:11:40,212 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 20:11:40,212 INFO L85 PathProgramCache]: Analyzing trace with hash 2105386301, now seen corresponding path program 1 times [2023-12-02 20:11:40,212 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 20:11:40,212 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2053381372] [2023-12-02 20:11:40,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 20:11:40,213 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 20:11:49,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 20:11:50,369 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 20:11:50,369 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 20:11:50,369 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2053381372] [2023-12-02 20:11:50,369 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2053381372] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 20:11:50,369 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 20:11:50,369 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 20:11:50,369 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [36797472] [2023-12-02 20:11:50,370 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 20:11:50,370 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 20:11:50,370 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 20:11:50,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 20:11:50,371 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 20:11:50,371 INFO L87 Difference]: Start difference. First operand 1769 states and 2467 transitions. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2023-12-02 20:11:51,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 20:11:51,404 INFO L93 Difference]: Finished difference Result 2428 states and 3279 transitions. [2023-12-02 20:11:51,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 20:11:51,404 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 126 [2023-12-02 20:11:51,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 20:11:51,413 INFO L225 Difference]: With dead ends: 2428 [2023-12-02 20:11:51,414 INFO L226 Difference]: Without dead ends: 1765 [2023-12-02 20:11:51,417 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 20:11:51,418 INFO L413 NwaCegarLoop]: 2248 mSDtfsCounter, 2451 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 214 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2451 SdHoareTripleChecker+Valid, 2248 SdHoareTripleChecker+Invalid, 215 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 214 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-02 20:11:51,418 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2451 Valid, 2248 Invalid, 215 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 214 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-02 20:11:51,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1765 states. [2023-12-02 20:11:51,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1765 to 1765. [2023-12-02 20:11:51,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1765 states, 1001 states have (on average 1.2267732267732268) internal successors, (1228), 1041 states have internal predecessors, (1228), 618 states have call successors, (618), 125 states have call predecessors, (618), 124 states have return successors, (616), 614 states have call predecessors, (616), 616 states have call successors, (616) [2023-12-02 20:11:51,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1765 states to 1765 states and 2462 transitions. [2023-12-02 20:11:51,594 INFO L78 Accepts]: Start accepts. Automaton has 1765 states and 2462 transitions. Word has length 126 [2023-12-02 20:11:51,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 20:11:51,594 INFO L495 AbstractCegarLoop]: Abstraction has 1765 states and 2462 transitions. [2023-12-02 20:11:51,594 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2023-12-02 20:11:51,595 INFO L276 IsEmpty]: Start isEmpty. Operand 1765 states and 2462 transitions. [2023-12-02 20:11:51,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2023-12-02 20:11:51,596 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 20:11:51,596 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 20:11:51,597 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-12-02 20:11:51,597 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_linux_alloc_irq_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2023-12-02 20:11:51,597 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 20:11:51,597 INFO L85 PathProgramCache]: Analyzing trace with hash -231622695, now seen corresponding path program 1 times [2023-12-02 20:11:51,597 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 20:11:51,597 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [568554030] [2023-12-02 20:11:51,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 20:11:51,598 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 20:12:01,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 20:12:03,791 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 20:12:03,791 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 20:12:03,791 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [568554030] [2023-12-02 20:12:03,792 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [568554030] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 20:12:03,792 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 20:12:03,792 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-02 20:12:03,792 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1318223165] [2023-12-02 20:12:03,792 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 20:12:03,793 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-02 20:12:03,793 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 20:12:03,793 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-02 20:12:03,793 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-02 20:12:03,794 INFO L87 Difference]: Start difference. First operand 1765 states and 2462 transitions. Second operand has 6 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (15), 3 states have call predecessors, (15), 2 states have call successors, (15) [2023-12-02 20:12:08,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 20:12:08,129 INFO L93 Difference]: Finished difference Result 1771 states and 2465 transitions. [2023-12-02 20:12:08,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-02 20:12:08,129 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (15), 3 states have call predecessors, (15), 2 states have call successors, (15) Word has length 129 [2023-12-02 20:12:08,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 20:12:08,138 INFO L225 Difference]: With dead ends: 1771 [2023-12-02 20:12:08,138 INFO L226 Difference]: Without dead ends: 1769 [2023-12-02 20:12:08,138 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 20:12:08,139 INFO L413 NwaCegarLoop]: 2246 mSDtfsCounter, 2407 mSDsluCounter, 5524 mSDsCounter, 0 mSdLazyCounter, 2087 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2408 SdHoareTripleChecker+Valid, 7770 SdHoareTripleChecker+Invalid, 2088 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2087 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2023-12-02 20:12:08,139 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2408 Valid, 7770 Invalid, 2088 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2087 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2023-12-02 20:12:08,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1769 states. [2023-12-02 20:12:08,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1769 to 1769. [2023-12-02 20:12:08,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1769 states, 1003 states have (on average 1.2253240279162512) internal successors, (1229), 1042 states have internal predecessors, (1229), 618 states have call successors, (618), 128 states have call predecessors, (618), 127 states have return successors, (616), 614 states have call predecessors, (616), 616 states have call successors, (616) [2023-12-02 20:12:08,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1769 states to 1769 states and 2463 transitions. [2023-12-02 20:12:08,321 INFO L78 Accepts]: Start accepts. Automaton has 1769 states and 2463 transitions. Word has length 129 [2023-12-02 20:12:08,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 20:12:08,322 INFO L495 AbstractCegarLoop]: Abstraction has 1769 states and 2463 transitions. [2023-12-02 20:12:08,322 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (15), 3 states have call predecessors, (15), 2 states have call successors, (15) [2023-12-02 20:12:08,323 INFO L276 IsEmpty]: Start isEmpty. Operand 1769 states and 2463 transitions. [2023-12-02 20:12:08,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2023-12-02 20:12:08,324 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 20:12:08,325 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] [2023-12-02 20:12:08,325 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-12-02 20:12:08,325 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_linux_kernel_rcu_update_lock_sched_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2023-12-02 20:12:08,325 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 20:12:08,326 INFO L85 PathProgramCache]: Analyzing trace with hash -403269625, now seen corresponding path program 1 times [2023-12-02 20:12:08,326 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 20:12:08,326 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1180345294] [2023-12-02 20:12:08,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 20:12:08,326 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 20:12:17,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 20:12:17,849 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 20:12:17,849 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 20:12:17,849 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1180345294] [2023-12-02 20:12:17,850 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1180345294] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 20:12:17,850 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 20:12:17,850 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-02 20:12:17,850 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [457517527] [2023-12-02 20:12:17,850 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 20:12:17,850 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 20:12:17,851 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 20:12:17,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 20:12:17,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-02 20:12:17,851 INFO L87 Difference]: Start difference. First operand 1769 states and 2463 transitions. Second operand has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (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 20:12:19,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 20:12:19,357 INFO L93 Difference]: Finished difference Result 1769 states and 2463 transitions. [2023-12-02 20:12:19,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 20:12:19,358 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (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 103 [2023-12-02 20:12:19,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 20:12:19,367 INFO L225 Difference]: With dead ends: 1769 [2023-12-02 20:12:19,367 INFO L226 Difference]: Without dead ends: 1767 [2023-12-02 20:12:19,368 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 20:12:19,368 INFO L413 NwaCegarLoop]: 2243 mSDtfsCounter, 2427 mSDsluCounter, 2243 mSDsCounter, 0 mSdLazyCounter, 428 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2427 SdHoareTripleChecker+Valid, 4486 SdHoareTripleChecker+Invalid, 428 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 428 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-12-02 20:12:19,369 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2427 Valid, 4486 Invalid, 428 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 428 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-12-02 20:12:19,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1767 states. [2023-12-02 20:12:19,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1767 to 1767. [2023-12-02 20:12:19,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1767 states, 1002 states have (on average 1.2245508982035929) internal successors, (1227), 1040 states have internal predecessors, (1227), 618 states have call successors, (618), 128 states have call predecessors, (618), 127 states have return successors, (616), 614 states have call predecessors, (616), 616 states have call successors, (616) [2023-12-02 20:12:19,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1767 states to 1767 states and 2461 transitions. [2023-12-02 20:12:19,603 INFO L78 Accepts]: Start accepts. Automaton has 1767 states and 2461 transitions. Word has length 103 [2023-12-02 20:12:19,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 20:12:19,603 INFO L495 AbstractCegarLoop]: Abstraction has 1767 states and 2461 transitions. [2023-12-02 20:12:19,603 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (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 20:12:19,604 INFO L276 IsEmpty]: Start isEmpty. Operand 1767 states and 2461 transitions. [2023-12-02 20:12:19,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2023-12-02 20:12:19,606 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 20:12:19,606 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] [2023-12-02 20:12:19,606 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-12-02 20:12:19,606 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2023-12-02 20:12:19,607 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 20:12:19,607 INFO L85 PathProgramCache]: Analyzing trace with hash 1698229595, now seen corresponding path program 1 times [2023-12-02 20:12:19,607 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 20:12:19,607 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1376052105] [2023-12-02 20:12:19,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 20:12:19,608 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 20:12:28,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 20:12:28,817 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 20:12:28,818 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 20:12:28,818 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1376052105] [2023-12-02 20:12:28,818 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1376052105] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 20:12:28,818 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [351222050] [2023-12-02 20:12:28,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 20:12:28,818 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 20:12:28,818 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85dc7eba-5142-4bce-bd57-2a255a3ad201/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 20:12:28,821 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85dc7eba-5142-4bce-bd57-2a255a3ad201/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 20:12:28,824 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85dc7eba-5142-4bce-bd57-2a255a3ad201/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-02 20:12:39,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 20:12:39,316 INFO L262 TraceCheckSpWp]: Trace formula consists of 7463 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-02 20:12:39,330 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 20:12:39,372 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 20:12:39,373 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 20:12:39,373 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [351222050] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 20:12:39,373 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-02 20:12:39,373 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2023-12-02 20:12:39,373 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [535865634] [2023-12-02 20:12:39,373 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 20:12:39,374 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 20:12:39,374 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 20:12:39,374 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 20:12:39,374 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-12-02 20:12:39,375 INFO L87 Difference]: Start difference. First operand 1767 states and 2461 transitions. Second operand has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (16), 2 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 20:12:40,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 20:12:40,290 INFO L93 Difference]: Finished difference Result 2437 states and 3281 transitions. [2023-12-02 20:12:40,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 20:12:40,290 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (16), 2 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 131 [2023-12-02 20:12:40,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 20:12:40,304 INFO L225 Difference]: With dead ends: 2437 [2023-12-02 20:12:40,304 INFO L226 Difference]: Without dead ends: 1785 [2023-12-02 20:12:40,306 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 131 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 20:12:40,307 INFO L413 NwaCegarLoop]: 2251 mSDtfsCounter, 2397 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 228 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2397 SdHoareTripleChecker+Valid, 2301 SdHoareTripleChecker+Invalid, 229 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 228 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-02 20:12:40,307 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2397 Valid, 2301 Invalid, 229 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 228 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-02 20:12:40,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1785 states. [2023-12-02 20:12:40,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1785 to 1783. [2023-12-02 20:12:40,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1783 states, 1009 states have (on average 1.2210109018830526) internal successors, (1232), 1047 states have internal predecessors, (1232), 622 states have call successors, (622), 134 states have call predecessors, (622), 133 states have return successors, (620), 617 states have call predecessors, (620), 620 states have call successors, (620) [2023-12-02 20:12:40,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1783 states to 1783 states and 2474 transitions. [2023-12-02 20:12:40,478 INFO L78 Accepts]: Start accepts. Automaton has 1783 states and 2474 transitions. Word has length 131 [2023-12-02 20:12:40,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 20:12:40,478 INFO L495 AbstractCegarLoop]: Abstraction has 1783 states and 2474 transitions. [2023-12-02 20:12:40,479 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (16), 2 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 20:12:40,479 INFO L276 IsEmpty]: Start isEmpty. Operand 1783 states and 2474 transitions. [2023-12-02 20:12:40,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2023-12-02 20:12:40,480 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 20:12:40,481 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 20:12:40,500 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85dc7eba-5142-4bce-bd57-2a255a3ad201/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-02 20:12:40,681 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85dc7eba-5142-4bce-bd57-2a255a3ad201/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2023-12-02 20:12:40,681 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2023-12-02 20:12:40,682 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 20:12:40,682 INFO L85 PathProgramCache]: Analyzing trace with hash 377502197, now seen corresponding path program 1 times [2023-12-02 20:12:40,682 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 20:12:40,682 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1324990428] [2023-12-02 20:12:40,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 20:12:40,682 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 20:12:49,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 20:12:49,578 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 20:12:49,578 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 20:12:49,578 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1324990428] [2023-12-02 20:12:49,578 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1324990428] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 20:12:49,578 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 20:12:49,578 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 20:12:49,579 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1732589478] [2023-12-02 20:12:49,579 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 20:12:49,579 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 20:12:49,579 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 20:12:49,580 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 20:12:49,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 20:12:49,580 INFO L87 Difference]: Start difference. First operand 1783 states and 2474 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, (19), 2 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-12-02 20:12:50,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 20:12:50,613 INFO L93 Difference]: Finished difference Result 3486 states and 4941 transitions. [2023-12-02 20:12:50,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 20:12:50,614 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, (19), 2 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 135 [2023-12-02 20:12:50,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 20:12:50,626 INFO L225 Difference]: With dead ends: 3486 [2023-12-02 20:12:50,627 INFO L226 Difference]: Without dead ends: 1779 [2023-12-02 20:12:50,632 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 20:12:50,633 INFO L413 NwaCegarLoop]: 2234 mSDtfsCounter, 2413 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 214 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2413 SdHoareTripleChecker+Valid, 2234 SdHoareTripleChecker+Invalid, 214 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 214 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-02 20:12:50,633 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2413 Valid, 2234 Invalid, 214 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 214 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-02 20:12:50,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1779 states. [2023-12-02 20:12:50,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1779 to 1779. [2023-12-02 20:12:50,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1779 states, 1006 states have (on average 1.2196819085487078) internal successors, (1227), 1043 states have internal predecessors, (1227), 622 states have call successors, (622), 134 states have call predecessors, (622), 133 states have return successors, (620), 617 states have call predecessors, (620), 620 states have call successors, (620) [2023-12-02 20:12:50,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1779 states to 1779 states and 2469 transitions. [2023-12-02 20:12:50,872 INFO L78 Accepts]: Start accepts. Automaton has 1779 states and 2469 transitions. Word has length 135 [2023-12-02 20:12:50,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 20:12:50,872 INFO L495 AbstractCegarLoop]: Abstraction has 1779 states and 2469 transitions. [2023-12-02 20:12:50,872 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, (19), 2 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-12-02 20:12:50,873 INFO L276 IsEmpty]: Start isEmpty. Operand 1779 states and 2469 transitions. [2023-12-02 20:12:50,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2023-12-02 20:12:50,874 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 20:12:50,875 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] [2023-12-02 20:12:50,875 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-12-02 20:12:50,875 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2023-12-02 20:12:50,875 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 20:12:50,875 INFO L85 PathProgramCache]: Analyzing trace with hash 2093062072, now seen corresponding path program 1 times [2023-12-02 20:12:50,876 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 20:12:50,876 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [805337419] [2023-12-02 20:12:50,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 20:12:50,876 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 20:12:59,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 20:13:00,051 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 20:13:00,051 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 20:13:00,051 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [805337419] [2023-12-02 20:13:00,051 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [805337419] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 20:13:00,051 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 20:13:00,051 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-02 20:13:00,051 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2064343343] [2023-12-02 20:13:00,052 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 20:13:00,052 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 20:13:00,052 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 20:13:00,052 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 20:13:00,053 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-02 20:13:00,053 INFO L87 Difference]: Start difference. First operand 1779 states and 2469 transitions. Second operand has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (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 20:13:01,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 20:13:01,397 INFO L93 Difference]: Finished difference Result 1779 states and 2469 transitions. [2023-12-02 20:13:01,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 20:13:01,398 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (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 108 [2023-12-02 20:13:01,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 20:13:01,408 INFO L225 Difference]: With dead ends: 1779 [2023-12-02 20:13:01,408 INFO L226 Difference]: Without dead ends: 1777 [2023-12-02 20:13:01,409 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 20:13:01,410 INFO L413 NwaCegarLoop]: 2231 mSDtfsCounter, 2414 mSDsluCounter, 2231 mSDsCounter, 0 mSdLazyCounter, 428 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2414 SdHoareTripleChecker+Valid, 4462 SdHoareTripleChecker+Invalid, 428 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 428 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-12-02 20:13:01,410 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2414 Valid, 4462 Invalid, 428 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 428 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-12-02 20:13:01,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1777 states. [2023-12-02 20:13:01,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1777 to 1777. [2023-12-02 20:13:01,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1777 states, 1005 states have (on average 1.2189054726368158) internal successors, (1225), 1041 states have internal predecessors, (1225), 622 states have call successors, (622), 134 states have call predecessors, (622), 133 states have return successors, (620), 617 states have call predecessors, (620), 620 states have call successors, (620) [2023-12-02 20:13:01,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1777 states to 1777 states and 2467 transitions. [2023-12-02 20:13:01,580 INFO L78 Accepts]: Start accepts. Automaton has 1777 states and 2467 transitions. Word has length 108 [2023-12-02 20:13:01,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 20:13:01,580 INFO L495 AbstractCegarLoop]: Abstraction has 1777 states and 2467 transitions. [2023-12-02 20:13:01,580 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (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 20:13:01,580 INFO L276 IsEmpty]: Start isEmpty. Operand 1777 states and 2467 transitions. [2023-12-02 20:13:01,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2023-12-02 20:13:01,582 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 20:13:01,582 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] [2023-12-02 20:13:01,582 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-12-02 20:13:01,582 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_linux_kernel_rcu_srcu_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2023-12-02 20:13:01,582 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 20:13:01,582 INFO L85 PathProgramCache]: Analyzing trace with hash -1849830775, now seen corresponding path program 1 times [2023-12-02 20:13:01,583 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 20:13:01,583 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2129922635] [2023-12-02 20:13:01,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 20:13:01,583 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 20:13:10,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 20:13:10,525 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 20:13:10,525 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 20:13:10,525 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2129922635] [2023-12-02 20:13:10,525 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2129922635] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 20:13:10,525 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 20:13:10,525 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-02 20:13:10,526 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [850562021] [2023-12-02 20:13:10,526 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 20:13:10,526 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 20:13:10,526 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 20:13:10,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 20:13:10,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-02 20:13:10,527 INFO L87 Difference]: Start difference. First operand 1777 states and 2467 transitions. Second operand has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (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 20:13:11,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 20:13:11,864 INFO L93 Difference]: Finished difference Result 1777 states and 2467 transitions. [2023-12-02 20:13:11,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 20:13:11,865 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (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 113 [2023-12-02 20:13:11,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 20:13:11,872 INFO L225 Difference]: With dead ends: 1777 [2023-12-02 20:13:11,872 INFO L226 Difference]: Without dead ends: 1775 [2023-12-02 20:13:11,872 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 20:13:11,873 INFO L413 NwaCegarLoop]: 2229 mSDtfsCounter, 2411 mSDsluCounter, 2229 mSDsCounter, 0 mSdLazyCounter, 428 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2411 SdHoareTripleChecker+Valid, 4458 SdHoareTripleChecker+Invalid, 428 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 428 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-12-02 20:13:11,873 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2411 Valid, 4458 Invalid, 428 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 428 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-12-02 20:13:11,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1775 states. [2023-12-02 20:13:12,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1775 to 1775. [2023-12-02 20:13:12,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1775 states, 1004 states have (on average 1.2181274900398407) internal successors, (1223), 1039 states have internal predecessors, (1223), 622 states have call successors, (622), 134 states have call predecessors, (622), 133 states have return successors, (620), 617 states have call predecessors, (620), 620 states have call successors, (620) [2023-12-02 20:13:12,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1775 states to 1775 states and 2465 transitions. [2023-12-02 20:13:12,045 INFO L78 Accepts]: Start accepts. Automaton has 1775 states and 2465 transitions. Word has length 113 [2023-12-02 20:13:12,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 20:13:12,045 INFO L495 AbstractCegarLoop]: Abstraction has 1775 states and 2465 transitions. [2023-12-02 20:13:12,045 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (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 20:13:12,045 INFO L276 IsEmpty]: Start isEmpty. Operand 1775 states and 2465 transitions. [2023-12-02 20:13:12,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2023-12-02 20:13:12,047 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 20:13:12,047 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] [2023-12-02 20:13:12,047 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-12-02 20:13:12,047 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_linux_lib_idr_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2023-12-02 20:13:12,047 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 20:13:12,047 INFO L85 PathProgramCache]: Analyzing trace with hash -1684307607, now seen corresponding path program 1 times [2023-12-02 20:13:12,047 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 20:13:12,047 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [294663924] [2023-12-02 20:13:12,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 20:13:12,047 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 20:13:20,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 20:13:21,032 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 20:13:21,032 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 20:13:21,032 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [294663924] [2023-12-02 20:13:21,032 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [294663924] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 20:13:21,032 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 20:13:21,032 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-02 20:13:21,033 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [162140267] [2023-12-02 20:13:21,033 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 20:13:21,033 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 20:13:21,033 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 20:13:21,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 20:13:21,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-02 20:13:21,034 INFO L87 Difference]: Start difference. First operand 1775 states and 2465 transitions. Second operand has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (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 20:13:22,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 20:13:22,617 INFO L93 Difference]: Finished difference Result 1775 states and 2465 transitions. [2023-12-02 20:13:22,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 20:13:22,618 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (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 118 [2023-12-02 20:13:22,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 20:13:22,626 INFO L225 Difference]: With dead ends: 1775 [2023-12-02 20:13:22,626 INFO L226 Difference]: Without dead ends: 1773 [2023-12-02 20:13:22,627 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 20:13:22,627 INFO L413 NwaCegarLoop]: 2227 mSDtfsCounter, 2408 mSDsluCounter, 2227 mSDsCounter, 0 mSdLazyCounter, 428 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2408 SdHoareTripleChecker+Valid, 4454 SdHoareTripleChecker+Invalid, 428 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 428 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-12-02 20:13:22,627 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2408 Valid, 4454 Invalid, 428 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 428 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-12-02 20:13:22,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1773 states. [2023-12-02 20:13:22,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1773 to 1773. [2023-12-02 20:13:22,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1773 states, 1003 states have (on average 1.2173479561316052) internal successors, (1221), 1037 states have internal predecessors, (1221), 622 states have call successors, (622), 134 states have call predecessors, (622), 133 states have return successors, (620), 617 states have call predecessors, (620), 620 states have call successors, (620) [2023-12-02 20:13:22,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1773 states to 1773 states and 2463 transitions. [2023-12-02 20:13:22,850 INFO L78 Accepts]: Start accepts. Automaton has 1773 states and 2463 transitions. Word has length 118 [2023-12-02 20:13:22,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 20:13:22,851 INFO L495 AbstractCegarLoop]: Abstraction has 1773 states and 2463 transitions. [2023-12-02 20:13:22,851 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (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 20:13:22,851 INFO L276 IsEmpty]: Start isEmpty. Operand 1773 states and 2463 transitions. [2023-12-02 20:13:22,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2023-12-02 20:13:22,852 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 20:13:22,852 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] [2023-12-02 20:13:22,853 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-12-02 20:13:22,853 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ldv_linux_mmc_sdio_func_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2023-12-02 20:13:22,853 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 20:13:22,853 INFO L85 PathProgramCache]: Analyzing trace with hash 350701334, now seen corresponding path program 1 times [2023-12-02 20:13:22,853 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 20:13:22,854 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1857378018] [2023-12-02 20:13:22,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 20:13:22,854 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 20:13:31,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 20:13:32,141 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 20:13:32,141 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 20:13:32,141 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1857378018] [2023-12-02 20:13:32,141 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1857378018] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 20:13:32,142 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 20:13:32,142 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-02 20:13:32,142 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1660521477] [2023-12-02 20:13:32,142 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 20:13:32,142 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 20:13:32,142 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 20:13:32,143 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 20:13:32,143 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-02 20:13:32,143 INFO L87 Difference]: Start difference. First operand 1773 states and 2463 transitions. Second operand has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (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 20:13:33,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 20:13:33,613 INFO L93 Difference]: Finished difference Result 1773 states and 2463 transitions. [2023-12-02 20:13:33,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 20:13:33,613 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (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 123 [2023-12-02 20:13:33,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 20:13:33,619 INFO L225 Difference]: With dead ends: 1773 [2023-12-02 20:13:33,619 INFO L226 Difference]: Without dead ends: 1771 [2023-12-02 20:13:33,620 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 20:13:33,620 INFO L413 NwaCegarLoop]: 2225 mSDtfsCounter, 2405 mSDsluCounter, 2225 mSDsCounter, 0 mSdLazyCounter, 428 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2405 SdHoareTripleChecker+Valid, 4450 SdHoareTripleChecker+Invalid, 428 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 428 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-12-02 20:13:33,621 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2405 Valid, 4450 Invalid, 428 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 428 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-12-02 20:13:33,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1771 states. [2023-12-02 20:13:33,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1771 to 1771. [2023-12-02 20:13:33,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1771 states, 1002 states have (on average 1.2165668662674651) internal successors, (1219), 1035 states have internal predecessors, (1219), 622 states have call successors, (622), 134 states have call predecessors, (622), 133 states have return successors, (620), 617 states have call predecessors, (620), 620 states have call successors, (620) [2023-12-02 20:13:33,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1771 states to 1771 states and 2461 transitions. [2023-12-02 20:13:33,822 INFO L78 Accepts]: Start accepts. Automaton has 1771 states and 2461 transitions. Word has length 123 [2023-12-02 20:13:33,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 20:13:33,822 INFO L495 AbstractCegarLoop]: Abstraction has 1771 states and 2461 transitions. [2023-12-02 20:13:33,822 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (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 20:13:33,823 INFO L276 IsEmpty]: Start isEmpty. Operand 1771 states and 2461 transitions. [2023-12-02 20:13:33,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2023-12-02 20:13:33,824 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 20:13:33,825 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] [2023-12-02 20:13:33,825 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-12-02 20:13:33,825 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ldv_linux_net_rtnetlink_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2023-12-02 20:13:33,825 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 20:13:33,825 INFO L85 PathProgramCache]: Analyzing trace with hash 2052079187, now seen corresponding path program 1 times [2023-12-02 20:13:33,826 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 20:13:33,826 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1509520306] [2023-12-02 20:13:33,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 20:13:33,826 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 20:13:42,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 20:13:42,750 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 20:13:42,750 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 20:13:42,750 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1509520306] [2023-12-02 20:13:42,750 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1509520306] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 20:13:42,750 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 20:13:42,750 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-02 20:13:42,750 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [246539854] [2023-12-02 20:13:42,751 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 20:13:42,751 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 20:13:42,751 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 20:13:42,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 20:13:42,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-02 20:13:42,752 INFO L87 Difference]: Start difference. First operand 1771 states and 2461 transitions. Second operand has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (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 20:13:44,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 20:13:44,420 INFO L93 Difference]: Finished difference Result 2129 states and 2914 transitions. [2023-12-02 20:13:44,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 20:13:44,421 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (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 128 [2023-12-02 20:13:44,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 20:13:44,428 INFO L225 Difference]: With dead ends: 2129 [2023-12-02 20:13:44,428 INFO L226 Difference]: Without dead ends: 2127 [2023-12-02 20:13:44,429 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 20:13:44,429 INFO L413 NwaCegarLoop]: 2222 mSDtfsCounter, 2337 mSDsluCounter, 2682 mSDsCounter, 0 mSdLazyCounter, 487 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2337 SdHoareTripleChecker+Valid, 4904 SdHoareTripleChecker+Invalid, 488 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 487 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-12-02 20:13:44,430 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2337 Valid, 4904 Invalid, 488 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 487 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-12-02 20:13:44,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2127 states. [2023-12-02 20:13:44,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2127 to 2117. [2023-12-02 20:13:44,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2117 states, 1200 states have (on average 1.2091666666666667) internal successors, (1451), 1232 states have internal predecessors, (1451), 729 states have call successors, (729), 176 states have call predecessors, (729), 175 states have return successors, (727), 724 states have call predecessors, (727), 727 states have call successors, (727) [2023-12-02 20:13:44,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2117 states to 2117 states and 2907 transitions. [2023-12-02 20:13:44,687 INFO L78 Accepts]: Start accepts. Automaton has 2117 states and 2907 transitions. Word has length 128 [2023-12-02 20:13:44,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 20:13:44,687 INFO L495 AbstractCegarLoop]: Abstraction has 2117 states and 2907 transitions. [2023-12-02 20:13:44,687 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (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 20:13:44,688 INFO L276 IsEmpty]: Start isEmpty. Operand 2117 states and 2907 transitions. [2023-12-02 20:13:44,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2023-12-02 20:13:44,690 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 20:13:44,690 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] [2023-12-02 20:13:44,690 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-12-02 20:13:44,690 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ldv_linux_net_sock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2023-12-02 20:13:44,690 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 20:13:44,690 INFO L85 PathProgramCache]: Analyzing trace with hash -1088093899, now seen corresponding path program 1 times [2023-12-02 20:13:44,691 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 20:13:44,691 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [83946620] [2023-12-02 20:13:44,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 20:13:44,691 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 20:13:53,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 20:13:53,601 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 20:13:53,602 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 20:13:53,602 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [83946620] [2023-12-02 20:13:53,602 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [83946620] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 20:13:53,602 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 20:13:53,602 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-02 20:13:53,602 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1287048321] [2023-12-02 20:13:53,602 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 20:13:53,603 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 20:13:53,603 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 20:13:53,603 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 20:13:53,603 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-02 20:13:53,604 INFO L87 Difference]: Start difference. First operand 2117 states and 2907 transitions. Second operand has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (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 20:13:55,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 20:13:55,275 INFO L93 Difference]: Finished difference Result 2117 states and 2907 transitions. [2023-12-02 20:13:55,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 20:13:55,275 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (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 133 [2023-12-02 20:13:55,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 20:13:55,281 INFO L225 Difference]: With dead ends: 2117 [2023-12-02 20:13:55,281 INFO L226 Difference]: Without dead ends: 2115 [2023-12-02 20:13:55,282 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 20:13:55,282 INFO L413 NwaCegarLoop]: 2221 mSDtfsCounter, 2399 mSDsluCounter, 2221 mSDsCounter, 0 mSdLazyCounter, 428 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2399 SdHoareTripleChecker+Valid, 4442 SdHoareTripleChecker+Invalid, 428 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 428 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-12-02 20:13:55,282 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2399 Valid, 4442 Invalid, 428 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 428 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-12-02 20:13:55,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2115 states. [2023-12-02 20:13:55,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2115 to 2115. [2023-12-02 20:13:55,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2115 states, 1199 states have (on average 1.2085070892410341) internal successors, (1449), 1230 states have internal predecessors, (1449), 729 states have call successors, (729), 176 states have call predecessors, (729), 175 states have return successors, (727), 724 states have call predecessors, (727), 727 states have call successors, (727) [2023-12-02 20:13:55,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2115 states to 2115 states and 2905 transitions. [2023-12-02 20:13:55,610 INFO L78 Accepts]: Start accepts. Automaton has 2115 states and 2905 transitions. Word has length 133 [2023-12-02 20:13:55,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 20:13:55,611 INFO L495 AbstractCegarLoop]: Abstraction has 2115 states and 2905 transitions. [2023-12-02 20:13:55,611 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (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 20:13:55,611 INFO L276 IsEmpty]: Start isEmpty. Operand 2115 states and 2905 transitions. [2023-12-02 20:13:55,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2023-12-02 20:13:55,612 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 20:13:55,612 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] [2023-12-02 20:13:55,613 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-12-02 20:13:55,613 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2023-12-02 20:13:55,613 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 20:13:55,613 INFO L85 PathProgramCache]: Analyzing trace with hash -97198015, now seen corresponding path program 1 times [2023-12-02 20:13:55,613 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 20:13:55,613 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1167322091] [2023-12-02 20:13:55,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 20:13:55,613 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 20:14:04,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 20:14:04,614 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 20:14:04,614 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 20:14:04,614 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1167322091] [2023-12-02 20:14:04,614 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1167322091] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 20:14:04,614 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 20:14:04,615 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-02 20:14:04,615 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1383613427] [2023-12-02 20:14:04,615 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 20:14:04,615 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 20:14:04,615 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 20:14:04,616 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 20:14:04,616 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-02 20:14:04,616 INFO L87 Difference]: Start difference. First operand 2115 states and 2905 transitions. Second operand has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (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 20:14:06,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 20:14:06,872 INFO L93 Difference]: Finished difference Result 3111 states and 4251 transitions. [2023-12-02 20:14:06,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-02 20:14:06,872 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (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 138 [2023-12-02 20:14:06,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 20:14:06,881 INFO L225 Difference]: With dead ends: 3111 [2023-12-02 20:14:06,881 INFO L226 Difference]: Without dead ends: 3109 [2023-12-02 20:14:06,883 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 20:14:06,883 INFO L413 NwaCegarLoop]: 2719 mSDtfsCounter, 2360 mSDsluCounter, 3974 mSDsCounter, 0 mSdLazyCounter, 608 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2360 SdHoareTripleChecker+Valid, 6693 SdHoareTripleChecker+Invalid, 609 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 608 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2023-12-02 20:14:06,883 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2360 Valid, 6693 Invalid, 609 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 608 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2023-12-02 20:14:06,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3109 states. [2023-12-02 20:14:07,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3109 to 3074. [2023-12-02 20:14:07,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3074 states, 1751 states have (on average 1.2090234151913193) internal successors, (2117), 1790 states have internal predecessors, (2117), 1050 states have call successors, (1050), 263 states have call predecessors, (1050), 261 states have return successors, (1055), 1041 states have call predecessors, (1055), 1048 states have call successors, (1055) [2023-12-02 20:14:07,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3074 states to 3074 states and 4222 transitions. [2023-12-02 20:14:07,268 INFO L78 Accepts]: Start accepts. Automaton has 3074 states and 4222 transitions. Word has length 138 [2023-12-02 20:14:07,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 20:14:07,269 INFO L495 AbstractCegarLoop]: Abstraction has 3074 states and 4222 transitions. [2023-12-02 20:14:07,269 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (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 20:14:07,269 INFO L276 IsEmpty]: Start isEmpty. Operand 3074 states and 4222 transitions. [2023-12-02 20:14:07,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2023-12-02 20:14:07,270 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 20:14:07,270 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] [2023-12-02 20:14:07,271 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-12-02 20:14:07,271 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2023-12-02 20:14:07,271 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 20:14:07,271 INFO L85 PathProgramCache]: Analyzing trace with hash -1910498872, now seen corresponding path program 1 times [2023-12-02 20:14:07,271 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 20:14:07,271 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1232796785] [2023-12-02 20:14:07,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 20:14:07,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 20:14:15,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 20:14:16,308 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 20:14:16,308 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 20:14:16,308 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1232796785] [2023-12-02 20:14:16,308 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1232796785] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 20:14:16,308 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 20:14:16,308 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-02 20:14:16,309 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2026806587] [2023-12-02 20:14:16,309 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 20:14:16,309 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 20:14:16,309 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 20:14:16,310 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 20:14:16,310 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-02 20:14:16,310 INFO L87 Difference]: Start difference. First operand 3074 states and 4222 transitions. Second operand has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (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 20:14:18,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 20:14:18,094 INFO L93 Difference]: Finished difference Result 3074 states and 4222 transitions. [2023-12-02 20:14:18,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 20:14:18,095 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (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 143 [2023-12-02 20:14:18,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 20:14:18,104 INFO L225 Difference]: With dead ends: 3074 [2023-12-02 20:14:18,104 INFO L226 Difference]: Without dead ends: 3072 [2023-12-02 20:14:18,106 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 20:14:18,106 INFO L413 NwaCegarLoop]: 2219 mSDtfsCounter, 2395 mSDsluCounter, 2219 mSDsCounter, 0 mSdLazyCounter, 428 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2395 SdHoareTripleChecker+Valid, 4438 SdHoareTripleChecker+Invalid, 428 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 428 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-12-02 20:14:18,107 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2395 Valid, 4438 Invalid, 428 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 428 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-12-02 20:14:18,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3072 states. [2023-12-02 20:14:18,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3072 to 3072. [2023-12-02 20:14:18,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3072 states, 1750 states have (on average 1.2085714285714286) internal successors, (2115), 1788 states have internal predecessors, (2115), 1050 states have call successors, (1050), 263 states have call predecessors, (1050), 261 states have return successors, (1055), 1041 states have call predecessors, (1055), 1048 states have call successors, (1055) [2023-12-02 20:14:18,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3072 states to 3072 states and 4220 transitions. [2023-12-02 20:14:18,548 INFO L78 Accepts]: Start accepts. Automaton has 3072 states and 4220 transitions. Word has length 143 [2023-12-02 20:14:18,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 20:14:18,548 INFO L495 AbstractCegarLoop]: Abstraction has 3072 states and 4220 transitions. [2023-12-02 20:14:18,548 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (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 20:14:18,549 INFO L276 IsEmpty]: Start isEmpty. Operand 3072 states and 4220 transitions. [2023-12-02 20:14:18,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2023-12-02 20:14:18,550 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 20:14:18,550 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 20:14:18,551 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2023-12-02 20:14:18,551 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2023-12-02 20:14:18,551 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 20:14:18,551 INFO L85 PathProgramCache]: Analyzing trace with hash 957139577, now seen corresponding path program 1 times [2023-12-02 20:14:18,551 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 20:14:18,551 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [23085476] [2023-12-02 20:14:18,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 20:14:18,551 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 20:14:27,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 20:14:28,491 INFO L134 CoverageAnalysis]: Checked inductivity of 379 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 379 trivial. 0 not checked. [2023-12-02 20:14:28,491 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 20:14:28,492 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [23085476] [2023-12-02 20:14:28,492 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [23085476] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 20:14:28,492 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 20:14:28,492 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-02 20:14:28,492 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2045764007] [2023-12-02 20:14:28,492 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 20:14:28,493 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-02 20:14:28,493 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 20:14:28,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-02 20:14:28,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-02 20:14:28,493 INFO L87 Difference]: Start difference. First operand 3072 states and 4220 transitions. Second operand has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (28), 3 states have call predecessors, (28), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2023-12-02 20:14:31,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 20:14:31,329 INFO L93 Difference]: Finished difference Result 3520 states and 4753 transitions. [2023-12-02 20:14:31,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-02 20:14:31,330 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (28), 3 states have call predecessors, (28), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 176 [2023-12-02 20:14:31,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 20:14:31,340 INFO L225 Difference]: With dead ends: 3520 [2023-12-02 20:14:31,341 INFO L226 Difference]: Without dead ends: 3518 [2023-12-02 20:14:31,342 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 20:14:31,343 INFO L413 NwaCegarLoop]: 2501 mSDtfsCounter, 1890 mSDsluCounter, 5862 mSDsCounter, 0 mSdLazyCounter, 845 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1891 SdHoareTripleChecker+Valid, 8363 SdHoareTripleChecker+Invalid, 846 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 845 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2023-12-02 20:14:31,343 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1891 Valid, 8363 Invalid, 846 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 845 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2023-12-02 20:14:31,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3518 states. [2023-12-02 20:14:31,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3518 to 3510. [2023-12-02 20:14:31,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3510 states, 2001 states have (on average 1.2023988005997002) internal successors, (2406), 2040 states have internal predecessors, (2406), 1167 states have call successors, (1167), 334 states have call predecessors, (1167), 332 states have return successors, (1172), 1158 states have call predecessors, (1172), 1165 states have call successors, (1172) [2023-12-02 20:14:31,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3510 states to 3510 states and 4745 transitions. [2023-12-02 20:14:31,856 INFO L78 Accepts]: Start accepts. Automaton has 3510 states and 4745 transitions. Word has length 176 [2023-12-02 20:14:31,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 20:14:31,857 INFO L495 AbstractCegarLoop]: Abstraction has 3510 states and 4745 transitions. [2023-12-02 20:14:31,857 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (28), 3 states have call predecessors, (28), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2023-12-02 20:14:31,857 INFO L276 IsEmpty]: Start isEmpty. Operand 3510 states and 4745 transitions. [2023-12-02 20:14:31,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2023-12-02 20:14:31,859 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 20:14:31,859 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 20:14:31,860 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2023-12-02 20:14:31,860 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ldv_assert_linux_net_rtnetlink__double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2023-12-02 20:14:31,860 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 20:14:31,860 INFO L85 PathProgramCache]: Analyzing trace with hash 1336136952, now seen corresponding path program 1 times [2023-12-02 20:14:31,860 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 20:14:31,860 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1029484325] [2023-12-02 20:14:31,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 20:14:31,861 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 20:14:40,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 20:14:41,481 INFO L134 CoverageAnalysis]: Checked inductivity of 379 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 379 trivial. 0 not checked. [2023-12-02 20:14:41,481 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 20:14:41,481 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1029484325] [2023-12-02 20:14:41,481 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1029484325] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 20:14:41,481 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 20:14:41,482 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-02 20:14:41,482 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [828224206] [2023-12-02 20:14:41,482 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 20:14:41,482 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-02 20:14:41,482 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 20:14:41,483 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-02 20:14:41,483 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-02 20:14:41,483 INFO L87 Difference]: Start difference. First operand 3510 states and 4745 transitions. Second operand has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (28), 3 states have call predecessors, (28), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2023-12-02 20:14:43,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 20:14:43,711 INFO L93 Difference]: Finished difference Result 3518 states and 4749 transitions. [2023-12-02 20:14:43,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-02 20:14:43,711 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (28), 3 states have call predecessors, (28), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 178 [2023-12-02 20:14:43,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 20:14:43,727 INFO L225 Difference]: With dead ends: 3518 [2023-12-02 20:14:43,727 INFO L226 Difference]: Without dead ends: 3516 [2023-12-02 20:14:43,729 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-02 20:14:43,730 INFO L413 NwaCegarLoop]: 2213 mSDtfsCounter, 2310 mSDsluCounter, 4881 mSDsCounter, 0 mSdLazyCounter, 704 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2311 SdHoareTripleChecker+Valid, 7094 SdHoareTripleChecker+Invalid, 705 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 704 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2023-12-02 20:14:43,730 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2311 Valid, 7094 Invalid, 705 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 704 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2023-12-02 20:14:43,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3516 states. [2023-12-02 20:14:44,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3516 to 3508. [2023-12-02 20:14:44,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3508 states, 2000 states have (on average 1.2015) internal successors, (2403), 2038 states have internal predecessors, (2403), 1167 states have call successors, (1167), 334 states have call predecessors, (1167), 332 states have return successors, (1172), 1158 states have call predecessors, (1172), 1165 states have call successors, (1172) [2023-12-02 20:14:44,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3508 states to 3508 states and 4742 transitions. [2023-12-02 20:14:44,237 INFO L78 Accepts]: Start accepts. Automaton has 3508 states and 4742 transitions. Word has length 178 [2023-12-02 20:14:44,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 20:14:44,238 INFO L495 AbstractCegarLoop]: Abstraction has 3508 states and 4742 transitions. [2023-12-02 20:14:44,238 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (28), 3 states have call predecessors, (28), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2023-12-02 20:14:44,238 INFO L276 IsEmpty]: Start isEmpty. Operand 3508 states and 4742 transitions. [2023-12-02 20:14:44,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2023-12-02 20:14:44,240 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 20:14:44,240 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] [2023-12-02 20:14:44,240 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2023-12-02 20:14:44,241 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ldv_linux_usb_urb_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2023-12-02 20:14:44,241 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 20:14:44,241 INFO L85 PathProgramCache]: Analyzing trace with hash -1969513063, now seen corresponding path program 1 times [2023-12-02 20:14:44,241 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 20:14:44,241 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1387921093] [2023-12-02 20:14:44,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 20:14:44,242 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 20:14:52,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 20:14:53,427 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 20:14:53,427 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 20:14:53,427 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1387921093] [2023-12-02 20:14:53,427 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1387921093] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 20:14:53,427 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 20:14:53,427 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-02 20:14:53,428 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1369302646] [2023-12-02 20:14:53,428 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 20:14:53,428 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 20:14:53,428 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 20:14:53,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 20:14:53,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-02 20:14:53,429 INFO L87 Difference]: Start difference. First operand 3508 states and 4742 transitions. Second operand has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (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 20:14:56,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 20:14:56,061 INFO L93 Difference]: Finished difference Result 5358 states and 7129 transitions. [2023-12-02 20:14:56,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 20:14:56,062 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (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 148 [2023-12-02 20:14:56,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 20:14:56,077 INFO L225 Difference]: With dead ends: 5358 [2023-12-02 20:14:56,077 INFO L226 Difference]: Without dead ends: 5200 [2023-12-02 20:14:56,081 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 20:14:56,081 INFO L413 NwaCegarLoop]: 2303 mSDtfsCounter, 1601 mSDsluCounter, 4361 mSDsCounter, 0 mSdLazyCounter, 682 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1601 SdHoareTripleChecker+Valid, 6664 SdHoareTripleChecker+Invalid, 682 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 682 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-12-02 20:14:56,082 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1601 Valid, 6664 Invalid, 682 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 682 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-12-02 20:14:56,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5200 states. [2023-12-02 20:14:56,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5200 to 5178. [2023-12-02 20:14:56,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5178 states, 2938 states have (on average 1.1936691626957114) internal successors, (3507), 2987 states have internal predecessors, (3507), 1692 states have call successors, (1692), 544 states have call predecessors, (1692), 539 states have return successors, (1718), 1676 states have call predecessors, (1718), 1688 states have call successors, (1718) [2023-12-02 20:14:56,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5178 states to 5178 states and 6917 transitions. [2023-12-02 20:14:56,825 INFO L78 Accepts]: Start accepts. Automaton has 5178 states and 6917 transitions. Word has length 148 [2023-12-02 20:14:56,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 20:14:56,825 INFO L495 AbstractCegarLoop]: Abstraction has 5178 states and 6917 transitions. [2023-12-02 20:14:56,825 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (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 20:14:56,825 INFO L276 IsEmpty]: Start isEmpty. Operand 5178 states and 6917 transitions. [2023-12-02 20:14:56,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2023-12-02 20:14:56,827 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 20:14:56,827 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 20:14:56,827 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2023-12-02 20:14:56,827 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ldv_linux_net_rtnetlink_past_rtnl_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2023-12-02 20:14:56,827 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 20:14:56,827 INFO L85 PathProgramCache]: Analyzing trace with hash 1829454229, now seen corresponding path program 1 times [2023-12-02 20:14:56,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 20:14:56,827 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1223136774] [2023-12-02 20:14:56,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 20:14:56,828 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 20:15:05,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 20:15:06,269 INFO L134 CoverageAnalysis]: Checked inductivity of 379 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 379 trivial. 0 not checked. [2023-12-02 20:15:06,269 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 20:15:06,269 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1223136774] [2023-12-02 20:15:06,269 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1223136774] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 20:15:06,269 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 20:15:06,269 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-02 20:15:06,270 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1600452774] [2023-12-02 20:15:06,270 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 20:15:06,270 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 20:15:06,270 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 20:15:06,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 20:15:06,271 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-02 20:15:06,271 INFO L87 Difference]: Start difference. First operand 5178 states and 6917 transitions. Second operand has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (27), 2 states have call predecessors, (27), 1 states have call successors, (27) [2023-12-02 20:15:08,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 20:15:08,982 INFO L93 Difference]: Finished difference Result 5186 states and 6921 transitions. [2023-12-02 20:15:08,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 20:15:08,983 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (27), 2 states have call predecessors, (27), 1 states have call successors, (27) Word has length 185 [2023-12-02 20:15:08,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 20:15:08,996 INFO L225 Difference]: With dead ends: 5186 [2023-12-02 20:15:08,996 INFO L226 Difference]: Without dead ends: 5184 [2023-12-02 20:15:08,999 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 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 20:15:08,999 INFO L413 NwaCegarLoop]: 2612 mSDtfsCounter, 511 mSDsluCounter, 4766 mSDsCounter, 0 mSdLazyCounter, 732 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 511 SdHoareTripleChecker+Valid, 7378 SdHoareTripleChecker+Invalid, 732 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 732 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2023-12-02 20:15:09,000 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [511 Valid, 7378 Invalid, 732 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 732 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2023-12-02 20:15:09,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5184 states. [2023-12-02 20:15:09,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5184 to 5176. [2023-12-02 20:15:09,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5176 states, 2937 states have (on average 1.1927136533878107) internal successors, (3503), 2985 states have internal predecessors, (3503), 1692 states have call successors, (1692), 544 states have call predecessors, (1692), 539 states have return successors, (1718), 1676 states have call predecessors, (1718), 1688 states have call successors, (1718) [2023-12-02 20:15:09,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5176 states to 5176 states and 6913 transitions. [2023-12-02 20:15:09,793 INFO L78 Accepts]: Start accepts. Automaton has 5176 states and 6913 transitions. Word has length 185 [2023-12-02 20:15:09,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 20:15:09,793 INFO L495 AbstractCegarLoop]: Abstraction has 5176 states and 6913 transitions. [2023-12-02 20:15:09,793 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (27), 2 states have call predecessors, (27), 1 states have call successors, (27) [2023-12-02 20:15:09,793 INFO L276 IsEmpty]: Start isEmpty. Operand 5176 states and 6913 transitions. [2023-12-02 20:15:09,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2023-12-02 20:15:09,795 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 20:15:09,795 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 20:15:09,795 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2023-12-02 20:15:09,795 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ldv_linux_usb_coherent_usb_free_coherentErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2023-12-02 20:15:09,795 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 20:15:09,796 INFO L85 PathProgramCache]: Analyzing trace with hash 771960554, now seen corresponding path program 1 times [2023-12-02 20:15:09,796 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 20:15:09,796 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [514795464] [2023-12-02 20:15:09,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 20:15:09,796 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 20:15:20,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 20:15:24,743 INFO L134 CoverageAnalysis]: Checked inductivity of 379 backedges. 4 proven. 46 refuted. 0 times theorem prover too weak. 329 trivial. 0 not checked. [2023-12-02 20:15:24,743 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 20:15:24,743 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [514795464] [2023-12-02 20:15:24,743 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [514795464] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 20:15:24,744 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1802544738] [2023-12-02 20:15:24,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 20:15:24,744 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 20:15:24,744 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85dc7eba-5142-4bce-bd57-2a255a3ad201/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 20:15:24,748 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85dc7eba-5142-4bce-bd57-2a255a3ad201/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 20:15:24,753 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85dc7eba-5142-4bce-bd57-2a255a3ad201/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-02 20:15:35,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 20:15:35,731 INFO L262 TraceCheckSpWp]: Trace formula consists of 7876 conjuncts, 21 conjunts are in the unsatisfiable core [2023-12-02 20:15:35,743 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 20:15:35,954 INFO L134 CoverageAnalysis]: Checked inductivity of 379 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 347 trivial. 0 not checked. [2023-12-02 20:15:35,954 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 20:15:35,954 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1802544738] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 20:15:35,954 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-02 20:15:35,955 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [9] total 17 [2023-12-02 20:15:35,955 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [125017719] [2023-12-02 20:15:35,955 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 20:15:35,955 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-02 20:15:35,956 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 20:15:35,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-02 20:15:35,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=240, Unknown=0, NotChecked=0, Total=272 [2023-12-02 20:15:35,957 INFO L87 Difference]: Start difference. First operand 5176 states and 6913 transitions. Second operand has 12 states, 9 states have (on average 7.777777777777778) internal successors, (70), 11 states have internal predecessors, (70), 6 states have call successors, (33), 2 states have call predecessors, (33), 4 states have return successors, (30), 6 states have call predecessors, (30), 6 states have call successors, (30) [2023-12-02 20:15:43,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 20:15:43,560 INFO L93 Difference]: Finished difference Result 6384 states and 8361 transitions. [2023-12-02 20:15:43,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-02 20:15:43,560 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 9 states have (on average 7.777777777777778) internal successors, (70), 11 states have internal predecessors, (70), 6 states have call successors, (33), 2 states have call predecessors, (33), 4 states have return successors, (30), 6 states have call predecessors, (30), 6 states have call successors, (30) Word has length 201 [2023-12-02 20:15:43,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 20:15:43,572 INFO L225 Difference]: With dead ends: 6384 [2023-12-02 20:15:43,573 INFO L226 Difference]: Without dead ends: 5174 [2023-12-02 20:15:43,577 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 218 GetRequests, 196 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=80, Invalid=472, Unknown=0, NotChecked=0, Total=552 [2023-12-02 20:15:43,578 INFO L413 NwaCegarLoop]: 2179 mSDtfsCounter, 24 mSDsluCounter, 21730 mSDsCounter, 0 mSdLazyCounter, 2747 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 23909 SdHoareTripleChecker+Invalid, 2763 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 2747 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2023-12-02 20:15:43,578 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 23909 Invalid, 2763 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [16 Valid, 2747 Invalid, 0 Unknown, 0 Unchecked, 6.6s Time] [2023-12-02 20:15:43,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5174 states. [2023-12-02 20:15:44,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5174 to 5174. [2023-12-02 20:15:44,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5174 states, 2936 states have (on average 1.1924386920980927) internal successors, (3501), 2984 states have internal predecessors, (3501), 1691 states have call successors, (1691), 544 states have call predecessors, (1691), 539 states have return successors, (1717), 1675 states have call predecessors, (1717), 1687 states have call successors, (1717) [2023-12-02 20:15:44,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5174 states to 5174 states and 6909 transitions. [2023-12-02 20:15:44,426 INFO L78 Accepts]: Start accepts. Automaton has 5174 states and 6909 transitions. Word has length 201 [2023-12-02 20:15:44,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 20:15:44,427 INFO L495 AbstractCegarLoop]: Abstraction has 5174 states and 6909 transitions. [2023-12-02 20:15:44,427 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 9 states have (on average 7.777777777777778) internal successors, (70), 11 states have internal predecessors, (70), 6 states have call successors, (33), 2 states have call predecessors, (33), 4 states have return successors, (30), 6 states have call predecessors, (30), 6 states have call successors, (30) [2023-12-02 20:15:44,427 INFO L276 IsEmpty]: Start isEmpty. Operand 5174 states and 6909 transitions. [2023-12-02 20:15:44,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2023-12-02 20:15:44,428 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 20:15:44,429 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:15:44,448 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85dc7eba-5142-4bce-bd57-2a255a3ad201/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-12-02 20:15:44,629 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85dc7eba-5142-4bce-bd57-2a255a3ad201/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2023-12-02 20:15:44,629 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ldv_linux_usb_coherent_usb_free_coherentErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2023-12-02 20:15:44,629 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 20:15:44,630 INFO L85 PathProgramCache]: Analyzing trace with hash -440045196, now seen corresponding path program 1 times [2023-12-02 20:15:44,630 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 20:15:44,630 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1956605914] [2023-12-02 20:15:44,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 20:15:44,630 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 20:15:54,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 20:15:56,642 INFO L134 CoverageAnalysis]: Checked inductivity of 439 backedges. 4 proven. 48 refuted. 0 times theorem prover too weak. 387 trivial. 0 not checked. [2023-12-02 20:15:56,642 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 20:15:56,642 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1956605914] [2023-12-02 20:15:56,642 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1956605914] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 20:15:56,642 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1344707991] [2023-12-02 20:15:56,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 20:15:56,642 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 20:15:56,643 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85dc7eba-5142-4bce-bd57-2a255a3ad201/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 20:15:56,643 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85dc7eba-5142-4bce-bd57-2a255a3ad201/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 20:15:56,644 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85dc7eba-5142-4bce-bd57-2a255a3ad201/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-02 20:16:07,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 20:16:07,391 INFO L262 TraceCheckSpWp]: Trace formula consists of 7953 conjuncts, 20 conjunts are in the unsatisfiable core [2023-12-02 20:16:07,400 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 20:16:07,557 INFO L134 CoverageAnalysis]: Checked inductivity of 439 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 401 trivial. 0 not checked. [2023-12-02 20:16:07,557 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 20:16:07,558 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1344707991] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 20:16:07,558 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-02 20:16:07,558 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [9] total 17 [2023-12-02 20:16:07,558 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1156757993] [2023-12-02 20:16:07,558 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 20:16:07,559 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-02 20:16:07,559 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 20:16:07,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-02 20:16:07,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=240, Unknown=0, NotChecked=0, Total=272 [2023-12-02 20:16:07,560 INFO L87 Difference]: Start difference. First operand 5174 states and 6909 transitions. Second operand has 12 states, 9 states have (on average 8.555555555555555) internal successors, (77), 11 states have internal predecessors, (77), 7 states have call successors, (36), 2 states have call predecessors, (36), 4 states have return successors, (33), 7 states have call predecessors, (33), 7 states have call successors, (33) [2023-12-02 20:16:14,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 20:16:14,464 INFO L93 Difference]: Finished difference Result 6815 states and 8965 transitions. [2023-12-02 20:16:14,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-02 20:16:14,464 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 9 states have (on average 8.555555555555555) internal successors, (77), 11 states have internal predecessors, (77), 7 states have call successors, (36), 2 states have call predecessors, (36), 4 states have return successors, (33), 7 states have call predecessors, (33), 7 states have call successors, (33) Word has length 218 [2023-12-02 20:16:14,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 20:16:14,474 INFO L225 Difference]: With dead ends: 6815 [2023-12-02 20:16:14,475 INFO L226 Difference]: Without dead ends: 5247 [2023-12-02 20:16:14,479 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 233 GetRequests, 211 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=72, Invalid=480, Unknown=0, NotChecked=0, Total=552 [2023-12-02 20:16:14,480 INFO L413 NwaCegarLoop]: 2289 mSDtfsCounter, 303 mSDsluCounter, 22317 mSDsCounter, 0 mSdLazyCounter, 2860 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 506 SdHoareTripleChecker+Valid, 24606 SdHoareTripleChecker+Invalid, 2878 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 2860 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2023-12-02 20:16:14,480 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [506 Valid, 24606 Invalid, 2878 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [18 Valid, 2860 Invalid, 0 Unknown, 0 Unchecked, 5.9s Time] [2023-12-02 20:16:14,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5247 states. [2023-12-02 20:16:15,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5247 to 5187. [2023-12-02 20:16:15,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5187 states, 2944 states have (on average 1.1908967391304348) internal successors, (3506), 2992 states have internal predecessors, (3506), 1696 states have call successors, (1696), 544 states have call predecessors, (1696), 539 states have return successors, (1722), 1680 states have call predecessors, (1722), 1692 states have call successors, (1722) [2023-12-02 20:16:15,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5187 states to 5187 states and 6924 transitions. [2023-12-02 20:16:15,248 INFO L78 Accepts]: Start accepts. Automaton has 5187 states and 6924 transitions. Word has length 218 [2023-12-02 20:16:15,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 20:16:15,248 INFO L495 AbstractCegarLoop]: Abstraction has 5187 states and 6924 transitions. [2023-12-02 20:16:15,248 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 9 states have (on average 8.555555555555555) internal successors, (77), 11 states have internal predecessors, (77), 7 states have call successors, (36), 2 states have call predecessors, (36), 4 states have return successors, (33), 7 states have call predecessors, (33), 7 states have call successors, (33) [2023-12-02 20:16:15,248 INFO L276 IsEmpty]: Start isEmpty. Operand 5187 states and 6924 transitions. [2023-12-02 20:16:15,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2023-12-02 20:16:15,250 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 20:16:15,250 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:16:15,270 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85dc7eba-5142-4bce-bd57-2a255a3ad201/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-12-02 20:16:15,450 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85dc7eba-5142-4bce-bd57-2a255a3ad201/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 20:16:15,451 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ldv_linux_usb_coherent_usb_free_coherentErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2023-12-02 20:16:15,451 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 20:16:15,451 INFO L85 PathProgramCache]: Analyzing trace with hash 620299833, now seen corresponding path program 1 times [2023-12-02 20:16:15,451 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 20:16:15,451 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [559580728] [2023-12-02 20:16:15,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 20:16:15,452 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 20:16:25,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 20:16:27,963 INFO L134 CoverageAnalysis]: Checked inductivity of 387 backedges. 4 proven. 46 refuted. 0 times theorem prover too weak. 337 trivial. 0 not checked. [2023-12-02 20:16:27,963 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 20:16:27,963 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [559580728] [2023-12-02 20:16:27,963 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [559580728] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 20:16:27,964 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [780510271] [2023-12-02 20:16:27,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 20:16:27,964 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 20:16:27,964 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85dc7eba-5142-4bce-bd57-2a255a3ad201/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 20:16:27,964 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85dc7eba-5142-4bce-bd57-2a255a3ad201/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 20:16:27,965 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85dc7eba-5142-4bce-bd57-2a255a3ad201/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-12-02 20:16:38,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 20:16:38,544 INFO L262 TraceCheckSpWp]: Trace formula consists of 7971 conjuncts, 22 conjunts are in the unsatisfiable core [2023-12-02 20:16:38,555 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 20:16:38,744 INFO L134 CoverageAnalysis]: Checked inductivity of 387 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 353 trivial. 0 not checked. [2023-12-02 20:16:38,745 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 20:16:38,745 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [780510271] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 20:16:38,745 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-02 20:16:38,745 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [9] total 18 [2023-12-02 20:16:38,745 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2102114242] [2023-12-02 20:16:38,745 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 20:16:38,746 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-12-02 20:16:38,746 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 20:16:38,747 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-12-02 20:16:38,747 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2023-12-02 20:16:38,747 INFO L87 Difference]: Start difference. First operand 5187 states and 6924 transitions. Second operand has 13 states, 10 states have (on average 8.9) internal successors, (89), 12 states have internal predecessors, (89), 7 states have call successors, (40), 2 states have call predecessors, (40), 4 states have return successors, (37), 7 states have call predecessors, (37), 7 states have call successors, (37) [2023-12-02 20:16:46,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 20:16:46,458 INFO L93 Difference]: Finished difference Result 6408 states and 8393 transitions. [2023-12-02 20:16:46,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-02 20:16:46,459 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 10 states have (on average 8.9) internal successors, (89), 12 states have internal predecessors, (89), 7 states have call successors, (40), 2 states have call predecessors, (40), 4 states have return successors, (37), 7 states have call predecessors, (37), 7 states have call successors, (37) Word has length 235 [2023-12-02 20:16:46,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 20:16:46,470 INFO L225 Difference]: With dead ends: 6408 [2023-12-02 20:16:46,470 INFO L226 Difference]: Without dead ends: 5196 [2023-12-02 20:16:46,474 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 253 GetRequests, 229 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=86, Invalid=564, Unknown=0, NotChecked=0, Total=650 [2023-12-02 20:16:46,474 INFO L413 NwaCegarLoop]: 2175 mSDtfsCounter, 38 mSDsluCounter, 23839 mSDsCounter, 0 mSdLazyCounter, 3000 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 26014 SdHoareTripleChecker+Invalid, 3018 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 3000 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.7s IncrementalHoareTripleChecker+Time [2023-12-02 20:16:46,475 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 26014 Invalid, 3018 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [18 Valid, 3000 Invalid, 0 Unknown, 0 Unchecked, 6.7s Time] [2023-12-02 20:16:46,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5196 states. [2023-12-02 20:16:47,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5196 to 5187. [2023-12-02 20:16:47,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5187 states, 2944 states have (on average 1.189538043478261) internal successors, (3502), 2989 states have internal predecessors, (3502), 1696 states have call successors, (1696), 544 states have call predecessors, (1696), 539 states have return successors, (1722), 1680 states have call predecessors, (1722), 1692 states have call successors, (1722) [2023-12-02 20:16:47,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5187 states to 5187 states and 6920 transitions. [2023-12-02 20:16:47,259 INFO L78 Accepts]: Start accepts. Automaton has 5187 states and 6920 transitions. Word has length 235 [2023-12-02 20:16:47,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 20:16:47,259 INFO L495 AbstractCegarLoop]: Abstraction has 5187 states and 6920 transitions. [2023-12-02 20:16:47,259 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 10 states have (on average 8.9) internal successors, (89), 12 states have internal predecessors, (89), 7 states have call successors, (40), 2 states have call predecessors, (40), 4 states have return successors, (37), 7 states have call predecessors, (37), 7 states have call successors, (37) [2023-12-02 20:16:47,259 INFO L276 IsEmpty]: Start isEmpty. Operand 5187 states and 6920 transitions. [2023-12-02 20:16:47,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 350 [2023-12-02 20:16:47,262 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 20:16:47,262 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 7, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:16:47,281 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85dc7eba-5142-4bce-bd57-2a255a3ad201/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-12-02 20:16:47,462 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85dc7eba-5142-4bce-bd57-2a255a3ad201/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 20:16:47,463 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ldv_linux_usb_coherent_usb_free_coherentErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2023-12-02 20:16:47,463 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 20:16:47,463 INFO L85 PathProgramCache]: Analyzing trace with hash 158431444, now seen corresponding path program 1 times [2023-12-02 20:16:47,463 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 20:16:47,464 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [753710129] [2023-12-02 20:16:47,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 20:16:47,464 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 20:16:56,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 20:16:57,721 INFO L134 CoverageAnalysis]: Checked inductivity of 517 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 505 trivial. 0 not checked. [2023-12-02 20:16:57,722 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 20:16:57,722 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [753710129] [2023-12-02 20:16:57,722 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [753710129] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 20:16:57,722 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1256288714] [2023-12-02 20:16:57,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 20:16:57,722 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 20:16:57,722 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85dc7eba-5142-4bce-bd57-2a255a3ad201/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 20:16:57,723 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85dc7eba-5142-4bce-bd57-2a255a3ad201/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 20:16:57,724 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85dc7eba-5142-4bce-bd57-2a255a3ad201/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-12-02 20:17:08,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 20:17:08,565 INFO L262 TraceCheckSpWp]: Trace formula consists of 8462 conjuncts, 42 conjunts are in the unsatisfiable core [2023-12-02 20:17:08,573 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 20:17:08,743 INFO L134 CoverageAnalysis]: Checked inductivity of 517 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 479 trivial. 0 not checked. [2023-12-02 20:17:08,743 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 20:17:08,743 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1256288714] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 20:17:08,743 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-02 20:17:08,743 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [8] total 19 [2023-12-02 20:17:08,743 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [640770801] [2023-12-02 20:17:08,744 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 20:17:08,744 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-12-02 20:17:08,744 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 20:17:08,745 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-12-02 20:17:08,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=307, Unknown=0, NotChecked=0, Total=342 [2023-12-02 20:17:08,745 INFO L87 Difference]: Start difference. First operand 5187 states and 6920 transitions. Second operand has 13 states, 10 states have (on average 10.9) internal successors, (109), 12 states have internal predecessors, (109), 7 states have call successors, (52), 2 states have call predecessors, (52), 4 states have return successors, (49), 7 states have call predecessors, (49), 7 states have call successors, (49) [2023-12-02 20:17:16,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 20:17:16,621 INFO L93 Difference]: Finished difference Result 6409 states and 8390 transitions. [2023-12-02 20:17:16,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-02 20:17:16,621 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 10 states have (on average 10.9) internal successors, (109), 12 states have internal predecessors, (109), 7 states have call successors, (52), 2 states have call predecessors, (52), 4 states have return successors, (49), 7 states have call predecessors, (49), 7 states have call successors, (49) Word has length 349 [2023-12-02 20:17:16,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 20:17:16,634 INFO L225 Difference]: With dead ends: 6409 [2023-12-02 20:17:16,634 INFO L226 Difference]: Without dead ends: 5105 [2023-12-02 20:17:16,639 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 365 GetRequests, 340 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=87, Invalid=615, Unknown=0, NotChecked=0, Total=702 [2023-12-02 20:17:16,640 INFO L413 NwaCegarLoop]: 2171 mSDtfsCounter, 40 mSDsluCounter, 23790 mSDsCounter, 0 mSdLazyCounter, 2992 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 25961 SdHoareTripleChecker+Invalid, 3012 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 2992 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.8s IncrementalHoareTripleChecker+Time [2023-12-02 20:17:16,640 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 25961 Invalid, 3012 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [20 Valid, 2992 Invalid, 0 Unknown, 0 Unchecked, 6.8s Time] [2023-12-02 20:17:16,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5105 states. [2023-12-02 20:17:17,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5105 to 5099. [2023-12-02 20:17:17,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5099 states, 2894 states have (on average 1.1903939184519696) internal successors, (3445), 2939 states have internal predecessors, (3445), 1670 states have call successors, (1670), 532 states have call predecessors, (1670), 527 states have return successors, (1696), 1654 states have call predecessors, (1696), 1666 states have call successors, (1696) [2023-12-02 20:17:17,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5099 states to 5099 states and 6811 transitions. [2023-12-02 20:17:17,381 INFO L78 Accepts]: Start accepts. Automaton has 5099 states and 6811 transitions. Word has length 349 [2023-12-02 20:17:17,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 20:17:17,382 INFO L495 AbstractCegarLoop]: Abstraction has 5099 states and 6811 transitions. [2023-12-02 20:17:17,382 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 10 states have (on average 10.9) internal successors, (109), 12 states have internal predecessors, (109), 7 states have call successors, (52), 2 states have call predecessors, (52), 4 states have return successors, (49), 7 states have call predecessors, (49), 7 states have call successors, (49) [2023-12-02 20:17:17,382 INFO L276 IsEmpty]: Start isEmpty. Operand 5099 states and 6811 transitions. [2023-12-02 20:17:17,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 302 [2023-12-02 20:17:17,384 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 20:17:17,384 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 8, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:17:17,405 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85dc7eba-5142-4bce-bd57-2a255a3ad201/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2023-12-02 20:17:17,584 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85dc7eba-5142-4bce-bd57-2a255a3ad201/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 20:17:17,585 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2023-12-02 20:17:17,585 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 20:17:17,585 INFO L85 PathProgramCache]: Analyzing trace with hash -52800560, now seen corresponding path program 1 times [2023-12-02 20:17:17,585 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 20:17:17,585 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [279178623] [2023-12-02 20:17:17,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 20:17:17,586 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 20:17:27,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 20:17:28,508 INFO L134 CoverageAnalysis]: Checked inductivity of 517 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 517 trivial. 0 not checked. [2023-12-02 20:17:28,509 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 20:17:28,509 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [279178623] [2023-12-02 20:17:28,509 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [279178623] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 20:17:28,509 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 20:17:28,509 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-02 20:17:28,509 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2110812210] [2023-12-02 20:17:28,509 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 20:17:28,510 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-02 20:17:28,510 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 20:17:28,510 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-02 20:17:28,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-02 20:17:28,511 INFO L87 Difference]: Start difference. First operand 5099 states and 6811 transitions. Second operand has 5 states, 5 states have (on average 17.6) internal successors, (88), 4 states have internal predecessors, (88), 2 states have call successors, (57), 3 states have call predecessors, (57), 1 states have return successors, (53), 2 states have call predecessors, (53), 2 states have call successors, (53) [2023-12-02 20:17:31,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 20:17:31,311 INFO L93 Difference]: Finished difference Result 5149 states and 6847 transitions. [2023-12-02 20:17:31,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-02 20:17:31,312 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 4 states have internal predecessors, (88), 2 states have call successors, (57), 3 states have call predecessors, (57), 1 states have return successors, (53), 2 states have call predecessors, (53), 2 states have call successors, (53) Word has length 301 [2023-12-02 20:17:31,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 20:17:31,321 INFO L225 Difference]: With dead ends: 5149 [2023-12-02 20:17:31,321 INFO L226 Difference]: Without dead ends: 5147 [2023-12-02 20:17:31,323 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-02 20:17:31,323 INFO L413 NwaCegarLoop]: 2129 mSDtfsCounter, 2221 mSDsluCounter, 4268 mSDsCounter, 0 mSdLazyCounter, 643 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2223 SdHoareTripleChecker+Valid, 6397 SdHoareTripleChecker+Invalid, 645 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 643 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2023-12-02 20:17:31,324 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2223 Valid, 6397 Invalid, 645 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 643 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2023-12-02 20:17:31,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5147 states. [2023-12-02 20:17:32,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5147 to 5145. [2023-12-02 20:17:32,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5145 states, 2924 states have (on average 1.1877564979480164) internal successors, (3473), 2969 states have internal predecessors, (3473), 1670 states have call successors, (1670), 548 states have call predecessors, (1670), 543 states have return successors, (1696), 1654 states have call predecessors, (1696), 1666 states have call successors, (1696) [2023-12-02 20:17:32,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5145 states to 5145 states and 6839 transitions. [2023-12-02 20:17:32,034 INFO L78 Accepts]: Start accepts. Automaton has 5145 states and 6839 transitions. Word has length 301 [2023-12-02 20:17:32,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 20:17:32,035 INFO L495 AbstractCegarLoop]: Abstraction has 5145 states and 6839 transitions. [2023-12-02 20:17:32,035 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 4 states have internal predecessors, (88), 2 states have call successors, (57), 3 states have call predecessors, (57), 1 states have return successors, (53), 2 states have call predecessors, (53), 2 states have call successors, (53) [2023-12-02 20:17:32,035 INFO L276 IsEmpty]: Start isEmpty. Operand 5145 states and 6839 transitions. [2023-12-02 20:17:32,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 329 [2023-12-02 20:17:32,037 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 20:17:32,037 INFO L195 NwaCegarLoop]: trace histogram [24, 24, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 5, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:17:32,037 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2023-12-02 20:17:32,037 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ar5523_cmdErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2023-12-02 20:17:32,037 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 20:17:32,037 INFO L85 PathProgramCache]: Analyzing trace with hash 1641916771, now seen corresponding path program 1 times [2023-12-02 20:17:32,038 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 20:17:32,038 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [286343632] [2023-12-02 20:17:32,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 20:17:32,038 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 20:17:41,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 20:17:42,145 INFO L134 CoverageAnalysis]: Checked inductivity of 1347 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1347 trivial. 0 not checked. [2023-12-02 20:17:42,145 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 20:17:42,145 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [286343632] [2023-12-02 20:17:42,145 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [286343632] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 20:17:42,145 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 20:17:42,146 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-02 20:17:42,147 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [28443938] [2023-12-02 20:17:42,147 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 20:17:42,147 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 20:17:42,148 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 20:17:42,148 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 20:17:42,148 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-02 20:17:42,148 INFO L87 Difference]: Start difference. First operand 5145 states and 6839 transitions. Second operand has 4 states, 3 states have (on average 30.333333333333332) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (44), 1 states have call predecessors, (44), 2 states have return successors, (41), 2 states have call predecessors, (41), 2 states have call successors, (41) [2023-12-02 20:17:44,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 20:17:44,808 INFO L93 Difference]: Finished difference Result 10256 states and 13909 transitions. [2023-12-02 20:17:44,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-02 20:17:44,809 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 30.333333333333332) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (44), 1 states have call predecessors, (44), 2 states have return successors, (41), 2 states have call predecessors, (41), 2 states have call successors, (41) Word has length 328 [2023-12-02 20:17:44,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 20:17:44,826 INFO L225 Difference]: With dead ends: 10256 [2023-12-02 20:17:44,826 INFO L226 Difference]: Without dead ends: 5177 [2023-12-02 20:17:44,841 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 20:17:44,841 INFO L413 NwaCegarLoop]: 2124 mSDtfsCounter, 5 mSDsluCounter, 4240 mSDsCounter, 0 mSdLazyCounter, 641 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 6364 SdHoareTripleChecker+Invalid, 645 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 641 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2023-12-02 20:17:44,842 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 6364 Invalid, 645 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 641 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2023-12-02 20:17:44,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5177 states. [2023-12-02 20:17:45,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5177 to 5167. [2023-12-02 20:17:45,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5167 states, 2941 states have (on average 1.190071404284257) internal successors, (3500), 2986 states have internal predecessors, (3500), 1670 states have call successors, (1670), 553 states have call predecessors, (1670), 548 states have return successors, (1696), 1654 states have call predecessors, (1696), 1666 states have call successors, (1696) [2023-12-02 20:17:45,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5167 states to 5167 states and 6866 transitions. [2023-12-02 20:17:45,644 INFO L78 Accepts]: Start accepts. Automaton has 5167 states and 6866 transitions. Word has length 328 [2023-12-02 20:17:45,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 20:17:45,644 INFO L495 AbstractCegarLoop]: Abstraction has 5167 states and 6866 transitions. [2023-12-02 20:17:45,644 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 30.333333333333332) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (44), 1 states have call predecessors, (44), 2 states have return successors, (41), 2 states have call predecessors, (41), 2 states have call successors, (41) [2023-12-02 20:17:45,644 INFO L276 IsEmpty]: Start isEmpty. Operand 5167 states and 6866 transitions. [2023-12-02 20:17:45,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 330 [2023-12-02 20:17:45,646 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 20:17:45,647 INFO L195 NwaCegarLoop]: trace histogram [24, 24, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 5, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:17:45,647 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2023-12-02 20:17:45,647 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ar5523_cmdErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2023-12-02 20:17:45,647 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 20:17:45,647 INFO L85 PathProgramCache]: Analyzing trace with hash -905206301, now seen corresponding path program 1 times [2023-12-02 20:17:45,647 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 20:17:45,647 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [67419825] [2023-12-02 20:17:45,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 20:17:45,648 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 20:17:55,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 20:17:56,889 INFO L134 CoverageAnalysis]: Checked inductivity of 1348 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1347 trivial. 0 not checked. [2023-12-02 20:17:56,889 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 20:17:56,889 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [67419825] [2023-12-02 20:17:56,889 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [67419825] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 20:17:56,889 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1786952274] [2023-12-02 20:17:56,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 20:17:56,890 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 20:17:56,890 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85dc7eba-5142-4bce-bd57-2a255a3ad201/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 20:17:56,891 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85dc7eba-5142-4bce-bd57-2a255a3ad201/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 20:17:56,892 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85dc7eba-5142-4bce-bd57-2a255a3ad201/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-12-02 20:18:11,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 20:18:11,264 INFO L262 TraceCheckSpWp]: Trace formula consists of 8791 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-02 20:18:11,275 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 20:18:11,304 INFO L134 CoverageAnalysis]: Checked inductivity of 1348 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 1345 trivial. 0 not checked. [2023-12-02 20:18:11,305 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 20:18:11,579 INFO L134 CoverageAnalysis]: Checked inductivity of 1348 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1347 trivial. 0 not checked. [2023-12-02 20:18:11,579 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1786952274] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 20:18:11,579 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [199421436] [2023-12-02 20:18:11,603 INFO L159 IcfgInterpreter]: Started Sifa with 158 locations of interest [2023-12-02 20:18:11,603 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 20:18:11,606 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 20:18:11,609 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 20:18:11,610 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs