./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--rtl818x--rtl8180--rtl818x_pci.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_15db0991-aa30-49da-887f-d430cf43872e/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15db0991-aa30-49da-887f-d430cf43872e/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_15db0991-aa30-49da-887f-d430cf43872e/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15db0991-aa30-49da-887f-d430cf43872e/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15db0991-aa30-49da-887f-d430cf43872e/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_15db0991-aa30-49da-887f-d430cf43872e/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 215f888dc671693e11ab9e6bd2129df5ac5b9449825c6d5223962a3561afda36 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 19:31:42,391 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 19:31:42,465 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15db0991-aa30-49da-887f-d430cf43872e/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-12-02 19:31:42,470 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 19:31:42,470 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 19:31:42,501 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 19:31:42,502 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 19:31:42,503 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 19:31:42,503 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 19:31:42,504 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 19:31:42,504 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 19:31:42,505 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 19:31:42,505 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 19:31:42,506 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-12-02 19:31:42,506 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 19:31:42,507 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 19:31:42,507 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-12-02 19:31:42,508 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-12-02 19:31:42,508 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 19:31:42,509 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-12-02 19:31:42,509 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-12-02 19:31:42,510 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-12-02 19:31:42,510 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 19:31:42,511 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 19:31:42,511 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 19:31:42,512 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 19:31:42,512 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 19:31:42,513 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 19:31:42,513 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 19:31:42,514 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 19:31:42,514 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 19:31:42,515 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 19:31:42,515 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 19:31:42,515 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 19:31:42,515 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 19:31:42,516 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 19:31:42,516 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 19:31:42,516 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 19:31:42,516 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-12-02 19:31:42,516 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 19:31:42,517 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 19:31:42,517 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 19:31:42,517 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 19:31:42,517 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 19:31:42,517 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_15db0991-aa30-49da-887f-d430cf43872e/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15db0991-aa30-49da-887f-d430cf43872e/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 215f888dc671693e11ab9e6bd2129df5ac5b9449825c6d5223962a3561afda36 [2023-12-02 19:31:42,739 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 19:31:42,764 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 19:31:42,767 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 19:31:42,768 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 19:31:42,768 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 19:31:42,769 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15db0991-aa30-49da-887f-d430cf43872e/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i [2023-12-02 19:31:45,482 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 19:31:46,081 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 19:31:46,081 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15db0991-aa30-49da-887f-d430cf43872e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i [2023-12-02 19:31:46,143 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15db0991-aa30-49da-887f-d430cf43872e/bin/utaipan-verify-nQ1chXbOIh/data/aca7ccb2a/dedb691cdcc748599c33129a449aae3e/FLAGb749b9f20 [2023-12-02 19:31:46,158 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15db0991-aa30-49da-887f-d430cf43872e/bin/utaipan-verify-nQ1chXbOIh/data/aca7ccb2a/dedb691cdcc748599c33129a449aae3e [2023-12-02 19:31:46,161 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 19:31:46,162 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 19:31:46,164 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 19:31:46,164 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 19:31:46,169 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 19:31:46,170 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 07:31:46" (1/1) ... [2023-12-02 19:31:46,171 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f62c076 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:31:46, skipping insertion in model container [2023-12-02 19:31:46,171 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 07:31:46" (1/1) ... [2023-12-02 19:31:46,421 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 19:31:52,246 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15db0991-aa30-49da-887f-d430cf43872e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[628967,628980] [2023-12-02 19:31:52,250 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15db0991-aa30-49da-887f-d430cf43872e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[629112,629125] [2023-12-02 19:31:52,251 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15db0991-aa30-49da-887f-d430cf43872e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[629258,629271] [2023-12-02 19:31:52,251 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15db0991-aa30-49da-887f-d430cf43872e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[629423,629436] [2023-12-02 19:31:52,252 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15db0991-aa30-49da-887f-d430cf43872e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[629581,629594] [2023-12-02 19:31:52,252 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15db0991-aa30-49da-887f-d430cf43872e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[629739,629752] [2023-12-02 19:31:52,252 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15db0991-aa30-49da-887f-d430cf43872e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[629897,629910] [2023-12-02 19:31:52,253 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15db0991-aa30-49da-887f-d430cf43872e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[630057,630070] [2023-12-02 19:31:52,253 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15db0991-aa30-49da-887f-d430cf43872e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[630216,630229] [2023-12-02 19:31:52,254 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15db0991-aa30-49da-887f-d430cf43872e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[630355,630368] [2023-12-02 19:31:52,254 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15db0991-aa30-49da-887f-d430cf43872e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[630497,630510] [2023-12-02 19:31:52,255 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15db0991-aa30-49da-887f-d430cf43872e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[630646,630659] [2023-12-02 19:31:52,255 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15db0991-aa30-49da-887f-d430cf43872e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[630785,630798] [2023-12-02 19:31:52,255 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15db0991-aa30-49da-887f-d430cf43872e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[630940,630953] [2023-12-02 19:31:52,256 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15db0991-aa30-49da-887f-d430cf43872e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[631100,631113] [2023-12-02 19:31:52,256 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15db0991-aa30-49da-887f-d430cf43872e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[631251,631264] [2023-12-02 19:31:52,257 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15db0991-aa30-49da-887f-d430cf43872e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[631402,631415] [2023-12-02 19:31:52,257 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15db0991-aa30-49da-887f-d430cf43872e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[631554,631567] [2023-12-02 19:31:52,258 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15db0991-aa30-49da-887f-d430cf43872e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[631703,631716] [2023-12-02 19:31:52,258 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15db0991-aa30-49da-887f-d430cf43872e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[631851,631864] [2023-12-02 19:31:52,258 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15db0991-aa30-49da-887f-d430cf43872e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[632008,632021] [2023-12-02 19:31:52,259 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15db0991-aa30-49da-887f-d430cf43872e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[632157,632170] [2023-12-02 19:31:52,259 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15db0991-aa30-49da-887f-d430cf43872e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[632313,632326] [2023-12-02 19:31:52,260 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15db0991-aa30-49da-887f-d430cf43872e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[632466,632479] [2023-12-02 19:31:52,260 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15db0991-aa30-49da-887f-d430cf43872e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[632612,632625] [2023-12-02 19:31:52,261 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15db0991-aa30-49da-887f-d430cf43872e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[632755,632768] [2023-12-02 19:31:52,261 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15db0991-aa30-49da-887f-d430cf43872e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[632907,632920] [2023-12-02 19:31:52,261 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15db0991-aa30-49da-887f-d430cf43872e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[633053,633066] [2023-12-02 19:31:52,262 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15db0991-aa30-49da-887f-d430cf43872e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[633198,633211] [2023-12-02 19:31:52,262 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15db0991-aa30-49da-887f-d430cf43872e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[633352,633365] [2023-12-02 19:31:52,263 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15db0991-aa30-49da-887f-d430cf43872e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[633503,633516] [2023-12-02 19:31:52,263 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15db0991-aa30-49da-887f-d430cf43872e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[633658,633671] [2023-12-02 19:31:52,264 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15db0991-aa30-49da-887f-d430cf43872e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[633810,633823] [2023-12-02 19:31:52,264 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15db0991-aa30-49da-887f-d430cf43872e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[633965,633978] [2023-12-02 19:31:52,264 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15db0991-aa30-49da-887f-d430cf43872e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[634129,634142] [2023-12-02 19:31:52,265 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15db0991-aa30-49da-887f-d430cf43872e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[634285,634298] [2023-12-02 19:31:52,265 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15db0991-aa30-49da-887f-d430cf43872e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[634449,634462] [2023-12-02 19:31:52,266 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15db0991-aa30-49da-887f-d430cf43872e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[634591,634604] [2023-12-02 19:31:52,266 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15db0991-aa30-49da-887f-d430cf43872e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[634749,634762] [2023-12-02 19:31:52,267 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15db0991-aa30-49da-887f-d430cf43872e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[634916,634929] [2023-12-02 19:31:52,267 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15db0991-aa30-49da-887f-d430cf43872e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[635075,635088] [2023-12-02 19:31:52,267 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15db0991-aa30-49da-887f-d430cf43872e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[635234,635247] [2023-12-02 19:31:52,268 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15db0991-aa30-49da-887f-d430cf43872e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[635383,635396] [2023-12-02 19:31:52,268 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15db0991-aa30-49da-887f-d430cf43872e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[635530,635543] [2023-12-02 19:31:52,269 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15db0991-aa30-49da-887f-d430cf43872e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[635669,635682] [2023-12-02 19:31:52,269 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15db0991-aa30-49da-887f-d430cf43872e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[635832,635845] [2023-12-02 19:31:52,269 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15db0991-aa30-49da-887f-d430cf43872e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[635998,636011] [2023-12-02 19:31:52,270 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15db0991-aa30-49da-887f-d430cf43872e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[636162,636175] [2023-12-02 19:31:52,270 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15db0991-aa30-49da-887f-d430cf43872e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[636327,636340] [2023-12-02 19:31:52,271 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15db0991-aa30-49da-887f-d430cf43872e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[636492,636505] [2023-12-02 19:31:52,271 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15db0991-aa30-49da-887f-d430cf43872e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[636658,636671] [2023-12-02 19:31:52,272 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15db0991-aa30-49da-887f-d430cf43872e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[636823,636836] [2023-12-02 19:31:52,272 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15db0991-aa30-49da-887f-d430cf43872e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[636990,637003] [2023-12-02 19:31:52,273 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15db0991-aa30-49da-887f-d430cf43872e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[637150,637163] [2023-12-02 19:31:52,273 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15db0991-aa30-49da-887f-d430cf43872e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[637312,637325] [2023-12-02 19:31:52,274 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15db0991-aa30-49da-887f-d430cf43872e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[637471,637484] [2023-12-02 19:31:52,274 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15db0991-aa30-49da-887f-d430cf43872e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[637617,637630] [2023-12-02 19:31:52,275 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15db0991-aa30-49da-887f-d430cf43872e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[637760,637773] [2023-12-02 19:31:52,275 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15db0991-aa30-49da-887f-d430cf43872e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[637904,637917] [2023-12-02 19:31:52,275 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15db0991-aa30-49da-887f-d430cf43872e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[638047,638060] [2023-12-02 19:31:52,276 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15db0991-aa30-49da-887f-d430cf43872e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[638191,638204] [2023-12-02 19:31:52,276 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15db0991-aa30-49da-887f-d430cf43872e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[638332,638345] [2023-12-02 19:31:52,277 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15db0991-aa30-49da-887f-d430cf43872e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[638470,638483] [2023-12-02 19:31:52,277 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15db0991-aa30-49da-887f-d430cf43872e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[638628,638641] [2023-12-02 19:31:52,278 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15db0991-aa30-49da-887f-d430cf43872e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[638787,638800] [2023-12-02 19:31:52,278 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15db0991-aa30-49da-887f-d430cf43872e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[638943,638956] [2023-12-02 19:31:52,279 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15db0991-aa30-49da-887f-d430cf43872e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[639092,639105] [2023-12-02 19:31:52,279 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15db0991-aa30-49da-887f-d430cf43872e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[639244,639257] [2023-12-02 19:31:52,280 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15db0991-aa30-49da-887f-d430cf43872e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[639395,639408] [2023-12-02 19:31:52,280 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15db0991-aa30-49da-887f-d430cf43872e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[639544,639557] [2023-12-02 19:31:52,280 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15db0991-aa30-49da-887f-d430cf43872e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[639696,639709] [2023-12-02 19:31:52,281 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15db0991-aa30-49da-887f-d430cf43872e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[639844,639857] [2023-12-02 19:31:52,281 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15db0991-aa30-49da-887f-d430cf43872e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[639997,640010] [2023-12-02 19:31:52,282 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15db0991-aa30-49da-887f-d430cf43872e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[640148,640161] [2023-12-02 19:31:52,282 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15db0991-aa30-49da-887f-d430cf43872e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[640298,640311] [2023-12-02 19:31:52,283 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15db0991-aa30-49da-887f-d430cf43872e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[640445,640458] [2023-12-02 19:31:52,283 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15db0991-aa30-49da-887f-d430cf43872e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[640596,640609] [2023-12-02 19:31:52,284 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15db0991-aa30-49da-887f-d430cf43872e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[640747,640760] [2023-12-02 19:31:52,284 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15db0991-aa30-49da-887f-d430cf43872e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[640895,640908] [2023-12-02 19:31:52,285 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15db0991-aa30-49da-887f-d430cf43872e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[641061,641074] [2023-12-02 19:31:52,285 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15db0991-aa30-49da-887f-d430cf43872e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[641230,641243] [2023-12-02 19:31:52,286 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15db0991-aa30-49da-887f-d430cf43872e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[641397,641410] [2023-12-02 19:31:52,286 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15db0991-aa30-49da-887f-d430cf43872e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[641565,641578] [2023-12-02 19:31:52,286 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15db0991-aa30-49da-887f-d430cf43872e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[641715,641728] [2023-12-02 19:31:52,287 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15db0991-aa30-49da-887f-d430cf43872e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[641862,641875] [2023-12-02 19:31:52,287 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15db0991-aa30-49da-887f-d430cf43872e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[642023,642036] [2023-12-02 19:31:52,288 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15db0991-aa30-49da-887f-d430cf43872e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[642193,642206] [2023-12-02 19:31:52,288 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15db0991-aa30-49da-887f-d430cf43872e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[642355,642368] [2023-12-02 19:31:52,323 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 19:31:52,388 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 19:31:52,539 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("bsfl %1,%0": "=r" (r): "rm" (x), "0" (-1)); [7734] [2023-12-02 19:31:52,541 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("bsrl %1,%0": "=r" (r): "rm" (x), "0" (-1)); [7742] [2023-12-02 19:31:52,542 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 *)"./arch/x86/include/asm/paravirt.h"), "i" (804), "i" (12UL)); [7780-7781] [2023-12-02 19:31:52,542 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("771:\n\tcall *%c2;\n772:\n.pushsection .parainstructions,\"a\"\n .balign 8 \n .quad 771b\n .byte %c1\n .byte 772b-771b\n .short %c3\n.popsection\n": "=a" (__eax): [paravirt_typenum] "i" (44UL), [paravirt_opptr] "i" (& pv_irq_ops.save_fl.func), [paravirt_clobber] "i" (1): "memory", "cc"); [7786-7788] [2023-12-02 19:31:52,548 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 *)"include/asm-generic/dma-mapping-common.h"), "i" (19), "i" (12UL)); [8014-8015] [2023-12-02 19:31:52,550 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 *)"include/asm-generic/dma-mapping-common.h"), "i" (36), "i" (12UL)); [8048-8049] [2023-12-02 19:31:52,575 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("lfence": : : "memory"); [8925] [2023-12-02 19:31:52,575 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("lfence": : : "memory"); [8932] [2023-12-02 19:31:52,627 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [9413] [2023-12-02 19:31:52,627 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [9415] [2023-12-02 19:31:52,899 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15db0991-aa30-49da-887f-d430cf43872e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[628967,628980] [2023-12-02 19:31:52,899 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15db0991-aa30-49da-887f-d430cf43872e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[629112,629125] [2023-12-02 19:31:52,900 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15db0991-aa30-49da-887f-d430cf43872e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[629258,629271] [2023-12-02 19:31:52,900 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15db0991-aa30-49da-887f-d430cf43872e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[629423,629436] [2023-12-02 19:31:52,901 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15db0991-aa30-49da-887f-d430cf43872e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[629581,629594] [2023-12-02 19:31:52,901 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15db0991-aa30-49da-887f-d430cf43872e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[629739,629752] [2023-12-02 19:31:52,902 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15db0991-aa30-49da-887f-d430cf43872e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[629897,629910] [2023-12-02 19:31:52,902 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15db0991-aa30-49da-887f-d430cf43872e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[630057,630070] [2023-12-02 19:31:52,902 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15db0991-aa30-49da-887f-d430cf43872e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[630216,630229] [2023-12-02 19:31:52,903 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15db0991-aa30-49da-887f-d430cf43872e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[630355,630368] [2023-12-02 19:31:52,903 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15db0991-aa30-49da-887f-d430cf43872e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[630497,630510] [2023-12-02 19:31:52,903 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15db0991-aa30-49da-887f-d430cf43872e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[630646,630659] [2023-12-02 19:31:52,904 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15db0991-aa30-49da-887f-d430cf43872e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[630785,630798] [2023-12-02 19:31:52,904 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15db0991-aa30-49da-887f-d430cf43872e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[630940,630953] [2023-12-02 19:31:52,905 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15db0991-aa30-49da-887f-d430cf43872e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[631100,631113] [2023-12-02 19:31:52,905 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15db0991-aa30-49da-887f-d430cf43872e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[631251,631264] [2023-12-02 19:31:52,905 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15db0991-aa30-49da-887f-d430cf43872e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[631402,631415] [2023-12-02 19:31:52,906 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15db0991-aa30-49da-887f-d430cf43872e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[631554,631567] [2023-12-02 19:31:52,906 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15db0991-aa30-49da-887f-d430cf43872e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[631703,631716] [2023-12-02 19:31:52,906 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15db0991-aa30-49da-887f-d430cf43872e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[631851,631864] [2023-12-02 19:31:52,907 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15db0991-aa30-49da-887f-d430cf43872e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[632008,632021] [2023-12-02 19:31:52,907 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15db0991-aa30-49da-887f-d430cf43872e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[632157,632170] [2023-12-02 19:31:52,908 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15db0991-aa30-49da-887f-d430cf43872e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[632313,632326] [2023-12-02 19:31:52,908 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15db0991-aa30-49da-887f-d430cf43872e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[632466,632479] [2023-12-02 19:31:52,908 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15db0991-aa30-49da-887f-d430cf43872e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[632612,632625] [2023-12-02 19:31:52,909 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15db0991-aa30-49da-887f-d430cf43872e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[632755,632768] [2023-12-02 19:31:52,909 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15db0991-aa30-49da-887f-d430cf43872e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[632907,632920] [2023-12-02 19:31:52,909 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15db0991-aa30-49da-887f-d430cf43872e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[633053,633066] [2023-12-02 19:31:52,910 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15db0991-aa30-49da-887f-d430cf43872e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[633198,633211] [2023-12-02 19:31:52,910 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15db0991-aa30-49da-887f-d430cf43872e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[633352,633365] [2023-12-02 19:31:52,911 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15db0991-aa30-49da-887f-d430cf43872e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[633503,633516] [2023-12-02 19:31:52,911 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15db0991-aa30-49da-887f-d430cf43872e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[633658,633671] [2023-12-02 19:31:52,911 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15db0991-aa30-49da-887f-d430cf43872e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[633810,633823] [2023-12-02 19:31:52,912 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15db0991-aa30-49da-887f-d430cf43872e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[633965,633978] [2023-12-02 19:31:52,912 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15db0991-aa30-49da-887f-d430cf43872e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[634129,634142] [2023-12-02 19:31:52,912 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15db0991-aa30-49da-887f-d430cf43872e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[634285,634298] [2023-12-02 19:31:52,913 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15db0991-aa30-49da-887f-d430cf43872e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[634449,634462] [2023-12-02 19:31:52,913 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15db0991-aa30-49da-887f-d430cf43872e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[634591,634604] [2023-12-02 19:31:52,913 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15db0991-aa30-49da-887f-d430cf43872e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[634749,634762] [2023-12-02 19:31:52,914 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15db0991-aa30-49da-887f-d430cf43872e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[634916,634929] [2023-12-02 19:31:52,914 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15db0991-aa30-49da-887f-d430cf43872e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[635075,635088] [2023-12-02 19:31:52,914 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15db0991-aa30-49da-887f-d430cf43872e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[635234,635247] [2023-12-02 19:31:52,915 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15db0991-aa30-49da-887f-d430cf43872e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[635383,635396] [2023-12-02 19:31:52,915 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15db0991-aa30-49da-887f-d430cf43872e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[635530,635543] [2023-12-02 19:31:52,915 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15db0991-aa30-49da-887f-d430cf43872e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[635669,635682] [2023-12-02 19:31:52,916 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15db0991-aa30-49da-887f-d430cf43872e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[635832,635845] [2023-12-02 19:31:52,916 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15db0991-aa30-49da-887f-d430cf43872e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[635998,636011] [2023-12-02 19:31:52,917 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15db0991-aa30-49da-887f-d430cf43872e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[636162,636175] [2023-12-02 19:31:52,917 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15db0991-aa30-49da-887f-d430cf43872e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[636327,636340] [2023-12-02 19:31:52,917 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15db0991-aa30-49da-887f-d430cf43872e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[636492,636505] [2023-12-02 19:31:52,918 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15db0991-aa30-49da-887f-d430cf43872e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[636658,636671] [2023-12-02 19:31:52,918 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15db0991-aa30-49da-887f-d430cf43872e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[636823,636836] [2023-12-02 19:31:52,918 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15db0991-aa30-49da-887f-d430cf43872e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[636990,637003] [2023-12-02 19:31:52,919 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15db0991-aa30-49da-887f-d430cf43872e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[637150,637163] [2023-12-02 19:31:52,919 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15db0991-aa30-49da-887f-d430cf43872e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[637312,637325] [2023-12-02 19:31:52,919 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15db0991-aa30-49da-887f-d430cf43872e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[637471,637484] [2023-12-02 19:31:52,920 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15db0991-aa30-49da-887f-d430cf43872e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[637617,637630] [2023-12-02 19:31:52,920 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15db0991-aa30-49da-887f-d430cf43872e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[637760,637773] [2023-12-02 19:31:52,921 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15db0991-aa30-49da-887f-d430cf43872e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[637904,637917] [2023-12-02 19:31:52,921 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15db0991-aa30-49da-887f-d430cf43872e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[638047,638060] [2023-12-02 19:31:52,921 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15db0991-aa30-49da-887f-d430cf43872e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[638191,638204] [2023-12-02 19:31:52,922 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15db0991-aa30-49da-887f-d430cf43872e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[638332,638345] [2023-12-02 19:31:52,922 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15db0991-aa30-49da-887f-d430cf43872e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[638470,638483] [2023-12-02 19:31:52,922 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15db0991-aa30-49da-887f-d430cf43872e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[638628,638641] [2023-12-02 19:31:52,923 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15db0991-aa30-49da-887f-d430cf43872e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[638787,638800] [2023-12-02 19:31:52,923 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15db0991-aa30-49da-887f-d430cf43872e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[638943,638956] [2023-12-02 19:31:52,924 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15db0991-aa30-49da-887f-d430cf43872e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[639092,639105] [2023-12-02 19:31:52,924 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15db0991-aa30-49da-887f-d430cf43872e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[639244,639257] [2023-12-02 19:31:52,924 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15db0991-aa30-49da-887f-d430cf43872e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[639395,639408] [2023-12-02 19:31:52,925 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15db0991-aa30-49da-887f-d430cf43872e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[639544,639557] [2023-12-02 19:31:52,925 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15db0991-aa30-49da-887f-d430cf43872e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[639696,639709] [2023-12-02 19:31:52,925 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15db0991-aa30-49da-887f-d430cf43872e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[639844,639857] [2023-12-02 19:31:52,926 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15db0991-aa30-49da-887f-d430cf43872e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[639997,640010] [2023-12-02 19:31:52,926 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15db0991-aa30-49da-887f-d430cf43872e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[640148,640161] [2023-12-02 19:31:52,926 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15db0991-aa30-49da-887f-d430cf43872e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[640298,640311] [2023-12-02 19:31:52,927 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15db0991-aa30-49da-887f-d430cf43872e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[640445,640458] [2023-12-02 19:31:52,927 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15db0991-aa30-49da-887f-d430cf43872e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[640596,640609] [2023-12-02 19:31:52,927 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15db0991-aa30-49da-887f-d430cf43872e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[640747,640760] [2023-12-02 19:31:52,928 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15db0991-aa30-49da-887f-d430cf43872e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[640895,640908] [2023-12-02 19:31:52,928 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15db0991-aa30-49da-887f-d430cf43872e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[641061,641074] [2023-12-02 19:31:52,929 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15db0991-aa30-49da-887f-d430cf43872e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[641230,641243] [2023-12-02 19:31:52,929 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15db0991-aa30-49da-887f-d430cf43872e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[641397,641410] [2023-12-02 19:31:52,929 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15db0991-aa30-49da-887f-d430cf43872e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[641565,641578] [2023-12-02 19:31:52,930 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15db0991-aa30-49da-887f-d430cf43872e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[641715,641728] [2023-12-02 19:31:52,930 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15db0991-aa30-49da-887f-d430cf43872e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[641862,641875] [2023-12-02 19:31:52,931 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15db0991-aa30-49da-887f-d430cf43872e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[642023,642036] [2023-12-02 19:31:52,931 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15db0991-aa30-49da-887f-d430cf43872e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[642193,642206] [2023-12-02 19:31:52,931 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15db0991-aa30-49da-887f-d430cf43872e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i[642355,642368] [2023-12-02 19:31:52,936 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 19:31:53,233 INFO L206 MainTranslator]: Completed translation [2023-12-02 19:31:53,234 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:31:53 WrapperNode [2023-12-02 19:31:53,234 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 19:31:53,235 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 19:31:53,235 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 19:31:53,235 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 19:31:53,242 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:31:53" (1/1) ... [2023-12-02 19:31:53,354 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:31:53" (1/1) ... [2023-12-02 19:31:53,670 INFO L138 Inliner]: procedures = 800, calls = 5150, calls flagged for inlining = 403, calls inlined = 325, statements flattened = 10700 [2023-12-02 19:31:53,670 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 19:31:53,671 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 19:31:53,671 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 19:31:53,671 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 19:31:53,681 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:31:53" (1/1) ... [2023-12-02 19:31:53,681 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:31:53" (1/1) ... [2023-12-02 19:31:53,743 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:31:53" (1/1) ... [2023-12-02 19:31:53,743 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:31:53" (1/1) ... [2023-12-02 19:31:53,957 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:31:53" (1/1) ... [2023-12-02 19:31:53,996 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:31:53" (1/1) ... [2023-12-02 19:31:54,084 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:31:53" (1/1) ... [2023-12-02 19:31:54,108 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:31:53" (1/1) ... [2023-12-02 19:31:54,188 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 19:31:54,189 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 19:31:54,189 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 19:31:54,189 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 19:31:54,190 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:31:53" (1/1) ... [2023-12-02 19:31:54,194 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 19:31:54,203 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15db0991-aa30-49da-887f-d430cf43872e/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 19:31:54,214 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15db0991-aa30-49da-887f-d430cf43872e/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 19:31:54,216 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15db0991-aa30-49da-887f-d430cf43872e/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 19:31:54,245 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_125 [2023-12-02 19:31:54,245 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_125 [2023-12-02 19:31:54,246 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_mmc_sdio_func_check_final_state [2023-12-02 19:31:54,246 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_mmc_sdio_func_check_final_state [2023-12-02 19:31:54,246 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2023-12-02 19:31:54,246 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2023-12-02 19:31:54,246 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2023-12-02 19:31:54,246 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2023-12-02 19:31:54,246 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2023-12-02 19:31:54,246 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2023-12-02 19:31:54,247 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_net_rtnetlink__double_lock [2023-12-02 19:31:54,247 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_net_rtnetlink__double_lock [2023-12-02 19:31:54,247 INFO L130 BoogieDeclarations]: Found specification of procedure sa2400_write_phy_antenna [2023-12-02 19:31:54,247 INFO L138 BoogieDeclarations]: Found implementation of procedure sa2400_write_phy_antenna [2023-12-02 19:31:54,247 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_free_rx_ring [2023-12-02 19:31:54,247 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_free_rx_ring [2023-12-02 19:31:54,247 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_bss_info_changed [2023-12-02 19:31:54,247 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_bss_info_changed [2023-12-02 19:31:54,248 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2023-12-02 19:31:54,248 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2023-12-02 19:31:54,248 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225z2_rf_set_tx_power [2023-12-02 19:31:54,248 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225z2_rf_set_tx_power [2023-12-02 19:31:54,248 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_request_check_final_state [2023-12-02 19:31:54,248 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_request_check_final_state [2023-12-02 19:31:54,248 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2023-12-02 19:31:54,248 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2023-12-02 19:31:54,248 INFO L130 BoogieDeclarations]: Found specification of procedure max2820_rf_stop [2023-12-02 19:31:54,249 INFO L138 BoogieDeclarations]: Found implementation of procedure max2820_rf_stop [2023-12-02 19:31:54,249 INFO L130 BoogieDeclarations]: Found specification of procedure _dev_info [2023-12-02 19:31:54,249 INFO L138 BoogieDeclarations]: Found implementation of procedure _dev_info [2023-12-02 19:31:54,249 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2023-12-02 19:31:54,249 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2023-12-02 19:31:54,249 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225_rf_stop [2023-12-02 19:31:54,249 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225_rf_stop [2023-12-02 19:31:54,249 INFO L130 BoogieDeclarations]: Found specification of procedure pci_zalloc_consistent [2023-12-02 19:31:54,250 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_zalloc_consistent [2023-12-02 19:31:54,250 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_bh_check_final_state [2023-12-02 19:31:54,250 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_bh_check_final_state [2023-12-02 19:31:54,250 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-12-02 19:31:54,250 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_genhd_check_final_state [2023-12-02 19:31:54,250 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_genhd_check_final_state [2023-12-02 19:31:54,250 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2023-12-02 19:31:54,250 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2023-12-02 19:31:54,251 INFO L130 BoogieDeclarations]: Found specification of procedure max2820_write_phy_antenna [2023-12-02 19:31:54,251 INFO L138 BoogieDeclarations]: Found implementation of procedure max2820_write_phy_antenna [2023-12-02 19:31:54,251 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2023-12-02 19:31:54,251 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2023-12-02 19:31:54,251 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2023-12-02 19:31:54,251 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2023-12-02 19:31:54,251 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225_rf_set_tx_power [2023-12-02 19:31:54,252 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225_rf_set_tx_power [2023-12-02 19:31:54,252 INFO L130 BoogieDeclarations]: Found specification of procedure sa2400_rf_set_channel [2023-12-02 19:31:54,252 INFO L138 BoogieDeclarations]: Found implementation of procedure sa2400_rf_set_channel [2023-12-02 19:31:54,252 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_srcu_check_final_state [2023-12-02 19:31:54,252 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_srcu_check_final_state [2023-12-02 19:31:54,252 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_dequeue [2023-12-02 19:31:54,252 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_dequeue [2023-12-02 19:31:54,252 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-12-02 19:31:54,252 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 19:31:54,253 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2023-12-02 19:31:54,253 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2023-12-02 19:31:54,253 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2023-12-02 19:31:54,253 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2023-12-02 19:31:54,253 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-12-02 19:31:54,253 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_get_rts_cts_rate [2023-12-02 19:31:54,253 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_get_rts_cts_rate [2023-12-02 19:31:54,253 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_start [2023-12-02 19:31:54,253 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_start [2023-12-02 19:31:54,254 INFO L130 BoogieDeclarations]: Found specification of procedure grf5101_rf_set_channel [2023-12-02 19:31:54,254 INFO L138 BoogieDeclarations]: Found implementation of procedure grf5101_rf_set_channel [2023-12-02 19:31:54,254 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2023-12-02 19:31:54,254 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2023-12-02 19:31:54,254 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_resume [2023-12-02 19:31:54,254 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_resume [2023-12-02 19:31:54,254 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_write_phy [2023-12-02 19:31:54,254 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_write_phy [2023-12-02 19:31:54,255 INFO L130 BoogieDeclarations]: Found specification of procedure skb_tail_pointer [2023-12-02 19:31:54,255 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_tail_pointer [2023-12-02 19:31:54,255 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 19:31:54,255 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 19:31:54,255 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2023-12-02 19:31:54,255 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2023-12-02 19:31:54,255 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-12-02 19:31:54,255 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_conf_tx [2023-12-02 19:31:54,255 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_conf_tx [2023-12-02 19:31:54,256 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ieee80211_free_hw [2023-12-02 19:31:54,256 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ieee80211_free_hw [2023-12-02 19:31:54,256 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225_rf_init [2023-12-02 19:31:54,256 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225_rf_init [2023-12-02 19:31:54,256 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2023-12-02 19:31:54,256 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2023-12-02 19:31:54,256 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2023-12-02 19:31:54,256 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2023-12-02 19:31:54,257 INFO L130 BoogieDeclarations]: Found specification of procedure sa2400_rf_stop [2023-12-02 19:31:54,257 INFO L138 BoogieDeclarations]: Found implementation of procedure sa2400_rf_stop [2023-12-02 19:31:54,257 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_122 [2023-12-02 19:31:54,257 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_122 [2023-12-02 19:31:54,257 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_sock_check_final_state [2023-12-02 19:31:54,257 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_sock_check_final_state [2023-12-02 19:31:54,257 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225_write [2023-12-02 19:31:54,257 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225_write [2023-12-02 19:31:54,258 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_gadget_check_final_state [2023-12-02 19:31:54,258 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_gadget_check_final_state [2023-12-02 19:31:54,258 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-02 19:31:54,258 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_fs_sysfs_check_final_state [2023-12-02 19:31:54,258 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_fs_sysfs_check_final_state [2023-12-02 19:31:54,258 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-12-02 19:31:54,258 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225se_rf_stop [2023-12-02 19:31:54,259 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225se_rf_stop [2023-12-02 19:31:54,259 INFO L130 BoogieDeclarations]: Found specification of procedure write_max2820 [2023-12-02 19:31:54,259 INFO L138 BoogieDeclarations]: Found implementation of procedure write_max2820 [2023-12-02 19:31:54,259 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2023-12-02 19:31:54,259 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2023-12-02 19:31:54,259 INFO L130 BoogieDeclarations]: Found specification of procedure write_grf5101 [2023-12-02 19:31:54,259 INFO L138 BoogieDeclarations]: Found implementation of procedure write_grf5101 [2023-12-02 19:31:54,259 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8187se_rf_readreg [2023-12-02 19:31:54,260 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8187se_rf_readreg [2023-12-02 19:31:54,260 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_check_final_state [2023-12-02 19:31:54,260 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_check_final_state [2023-12-02 19:31:54,260 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_urb_check_final_state [2023-12-02 19:31:54,260 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_urb_check_final_state [2023-12-02 19:31:54,260 INFO L130 BoogieDeclarations]: Found specification of procedure max2820_rf_set_channel [2023-12-02 19:31:54,260 INFO L138 BoogieDeclarations]: Found implementation of procedure max2820_rf_set_channel [2023-12-02 19:31:54,261 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-12-02 19:31:54,261 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-12-02 19:31:54,261 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-12-02 19:31:54,261 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_configure_filter [2023-12-02 19:31:54,261 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_configure_filter [2023-12-02 19:31:54,261 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8187se_conf_ac_parm [2023-12-02 19:31:54,261 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8187se_conf_ac_parm [2023-12-02 19:31:54,261 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_lock [2023-12-02 19:31:54,261 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_lock [2023-12-02 19:31:54,262 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_prepare_multicast [2023-12-02 19:31:54,262 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_prepare_multicast [2023-12-02 19:31:54,262 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2023-12-02 19:31:54,262 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2023-12-02 19:31:54,262 INFO L130 BoogieDeclarations]: Found specification of procedure eeprom_93cx6_multiread [2023-12-02 19:31:54,262 INFO L138 BoogieDeclarations]: Found implementation of procedure eeprom_93cx6_multiread [2023-12-02 19:31:54,262 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_rtnetlink_past_rtnl_unlock [2023-12-02 19:31:54,263 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_rtnetlink_past_rtnl_unlock [2023-12-02 19:31:54,263 INFO L130 BoogieDeclarations]: Found specification of procedure delayed_work_timer_fn [2023-12-02 19:31:54,263 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_tx [2023-12-02 19:31:54,263 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_tx [2023-12-02 19:31:54,263 INFO L130 BoogieDeclarations]: Found specification of procedure IEEE80211_SKB_CB [2023-12-02 19:31:54,263 INFO L138 BoogieDeclarations]: Found implementation of procedure IEEE80211_SKB_CB [2023-12-02 19:31:54,263 INFO L130 BoogieDeclarations]: Found specification of procedure rtl818x_ioread8 [2023-12-02 19:31:54,264 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl818x_ioread8 [2023-12-02 19:31:54,264 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_frequency_to_channel [2023-12-02 19:31:54,264 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_frequency_to_channel [2023-12-02 19:31:54,264 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_coherent_check_final_state [2023-12-02 19:31:54,264 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_coherent_check_final_state [2023-12-02 19:31:54,264 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_free_tx_ring [2023-12-02 19:31:54,264 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_free_tx_ring [2023-12-02 19:31:54,264 INFO L130 BoogieDeclarations]: Found specification of procedure rtl818x_iowrite8 [2023-12-02 19:31:54,265 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl818x_iowrite8 [2023-12-02 19:31:54,265 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2023-12-02 19:31:54,265 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2023-12-02 19:31:54,265 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2023-12-02 19:31:54,265 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2023-12-02 19:31:54,265 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-12-02 19:31:54,265 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-12-02 19:31:54,265 INFO L130 BoogieDeclarations]: Found specification of procedure max2820_rf_init [2023-12-02 19:31:54,265 INFO L138 BoogieDeclarations]: Found implementation of procedure max2820_rf_init [2023-12-02 19:31:54,266 INFO L130 BoogieDeclarations]: Found specification of procedure sa2400_rf_calc_rssi [2023-12-02 19:31:54,266 INFO L138 BoogieDeclarations]: Found implementation of procedure sa2400_rf_calc_rssi [2023-12-02 19:31:54,266 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8187se_rf_writereg [2023-12-02 19:31:54,266 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8187se_rf_writereg [2023-12-02 19:31:54,266 INFO L130 BoogieDeclarations]: Found specification of procedure usleep_range [2023-12-02 19:31:54,266 INFO L138 BoogieDeclarations]: Found implementation of procedure usleep_range [2023-12-02 19:31:54,266 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_generic_frame_duration [2023-12-02 19:31:54,266 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_generic_frame_duration [2023-12-02 19:31:54,266 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_arch_io_check_final_state [2023-12-02 19:31:54,267 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_arch_io_check_final_state [2023-12-02 19:31:54,267 INFO L130 BoogieDeclarations]: Found specification of procedure fls [2023-12-02 19:31:54,267 INFO L138 BoogieDeclarations]: Found implementation of procedure fls [2023-12-02 19:31:54,267 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_module_check_final_state [2023-12-02 19:31:54,267 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_module_check_final_state [2023-12-02 19:31:54,267 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2023-12-02 19:31:54,267 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2023-12-02 19:31:54,267 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_rtnetlink_past_rtnl_lock [2023-12-02 19:31:54,267 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_rtnetlink_past_rtnl_lock [2023-12-02 19:31:54,268 INFO L130 BoogieDeclarations]: Found specification of procedure sa2400_rf_init [2023-12-02 19:31:54,268 INFO L138 BoogieDeclarations]: Found implementation of procedure sa2400_rf_init [2023-12-02 19:31:54,268 INFO L130 BoogieDeclarations]: Found specification of procedure rtl818x_ioread32 [2023-12-02 19:31:54,268 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl818x_ioread32 [2023-12-02 19:31:54,268 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2023-12-02 19:31:54,268 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2023-12-02 19:31:54,268 INFO L130 BoogieDeclarations]: Found specification of procedure grf5101_rf_calc_rssi [2023-12-02 19:31:54,268 INFO L138 BoogieDeclarations]: Found implementation of procedure grf5101_rf_calc_rssi [2023-12-02 19:31:54,268 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2023-12-02 19:31:54,269 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2023-12-02 19:31:54,269 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_queue_check_final_state [2023-12-02 19:31:54,269 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_queue_check_final_state [2023-12-02 19:31:54,269 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-02 19:31:54,269 INFO L130 BoogieDeclarations]: Found specification of procedure rtl818x_ioread16 [2023-12-02 19:31:54,269 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl818x_ioread16 [2023-12-02 19:31:54,269 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_set_anaparam [2023-12-02 19:31:54,269 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_set_anaparam [2023-12-02 19:31:54,269 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-12-02 19:31:54,269 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_get_tx_rate [2023-12-02 19:31:54,270 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_get_tx_rate [2023-12-02 19:31:54,270 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2023-12-02 19:31:54,270 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2023-12-02 19:31:54,270 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-12-02 19:31:54,270 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_in_interrupt_context [2023-12-02 19:31:54,270 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_in_interrupt_context [2023-12-02 19:31:54,270 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2023-12-02 19:31:54,270 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2023-12-02 19:31:54,270 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_get_tsf [2023-12-02 19:31:54,271 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_get_tsf [2023-12-02 19:31:54,271 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2023-12-02 19:31:54,271 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2023-12-02 19:31:54,271 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_register_reset_error_counter [2023-12-02 19:31:54,271 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_register_reset_error_counter [2023-12-02 19:31:54,271 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2023-12-02 19:31:54,271 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2023-12-02 19:31:54,271 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2023-12-02 19:31:54,271 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2023-12-02 19:31:54,272 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_interrupt_interrupt_instance_5 [2023-12-02 19:31:54,272 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_interrupt_interrupt_instance_5 [2023-12-02 19:31:54,272 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_interrupt_interrupt_instance_6 [2023-12-02 19:31:54,272 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_interrupt_interrupt_instance_6 [2023-12-02 19:31:54,272 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iomap [2023-12-02 19:31:54,272 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iomap [2023-12-02 19:31:54,272 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_add_interface [2023-12-02 19:31:54,272 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_add_interface [2023-12-02 19:31:54,273 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_lib_idr_check_final_state [2023-12-02 19:31:54,273 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_lib_idr_check_final_state [2023-12-02 19:31:54,273 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225_rf_set_channel [2023-12-02 19:31:54,273 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225_rf_set_channel [2023-12-02 19:31:54,273 INFO L130 BoogieDeclarations]: Found specification of procedure is_valid_ether_addr [2023-12-02 19:31:54,273 INFO L138 BoogieDeclarations]: Found implementation of procedure is_valid_ether_addr [2023-12-02 19:31:54,273 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_free_hw [2023-12-02 19:31:54,274 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_free_hw [2023-12-02 19:31:54,274 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225_write_phy_cck [2023-12-02 19:31:54,274 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225_write_phy_cck [2023-12-02 19:31:54,274 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2023-12-02 19:31:54,274 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2023-12-02 19:31:54,274 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2023-12-02 19:31:54,274 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2023-12-02 19:31:54,275 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225se_rf_init [2023-12-02 19:31:54,275 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225se_rf_init [2023-12-02 19:31:54,275 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_register_reset_error_counter [2023-12-02 19:31:54,275 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_register_reset_error_counter [2023-12-02 19:31:54,275 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_set_anaparam2 [2023-12-02 19:31:54,275 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_set_anaparam2 [2023-12-02 19:31:54,275 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225_write_phy_ofdm [2023-12-02 19:31:54,276 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225_write_phy_ofdm [2023-12-02 19:31:54,276 INFO L130 BoogieDeclarations]: Found specification of procedure max2820_rf_calc_rssi [2023-12-02 19:31:54,276 INFO L138 BoogieDeclarations]: Found implementation of procedure max2820_rf_calc_rssi [2023-12-02 19:31:54,276 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_conf_basic_rates [2023-12-02 19:31:54,276 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_conf_basic_rates [2023-12-02 19:31:54,276 INFO L130 BoogieDeclarations]: Found specification of procedure write_sa2400 [2023-12-02 19:31:54,276 INFO L138 BoogieDeclarations]: Found implementation of procedure write_sa2400 [2023-12-02 19:31:54,276 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-12-02 19:31:54,276 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-12-02 19:31:54,277 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-12-02 19:31:54,277 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_stop [2023-12-02 19:31:54,277 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_stop [2023-12-02 19:31:54,277 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2023-12-02 19:31:54,277 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2023-12-02 19:31:54,277 INFO L130 BoogieDeclarations]: Found specification of procedure request_irq [2023-12-02 19:31:54,277 INFO L138 BoogieDeclarations]: Found implementation of procedure request_irq [2023-12-02 19:31:54,277 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225z2_rf_init [2023-12-02 19:31:54,277 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225z2_rf_init [2023-12-02 19:31:54,278 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_remove [2023-12-02 19:31:54,278 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_remove [2023-12-02 19:31:54,278 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_unlock [2023-12-02 19:31:54,278 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_unlock [2023-12-02 19:31:54,278 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225se_rf_set_channel [2023-12-02 19:31:54,278 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225se_rf_set_channel [2023-12-02 19:31:54,278 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_spinlock_spin_unlock_lock_of_rtl8180_priv [2023-12-02 19:31:54,278 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_spinlock_spin_unlock_lock_of_rtl8180_priv [2023-12-02 19:31:54,279 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_int_disable [2023-12-02 19:31:54,279 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_int_disable [2023-12-02 19:31:54,279 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_spinlock_spin_lock_lock_of_rtl8180_priv [2023-12-02 19:31:54,279 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_spinlock_spin_lock_lock_of_rtl8180_priv [2023-12-02 19:31:54,279 INFO L130 BoogieDeclarations]: Found specification of procedure grf5101_write_phy_antenna [2023-12-02 19:31:54,279 INFO L138 BoogieDeclarations]: Found implementation of procedure grf5101_write_phy_antenna [2023-12-02 19:31:54,279 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-12-02 19:31:54,279 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-12-02 19:31:54,280 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-12-02 19:31:54,280 INFO L130 BoogieDeclarations]: Found specification of procedure kfree_skb [2023-12-02 19:31:54,280 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree_skb [2023-12-02 19:31:54,280 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2023-12-02 19:31:54,280 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2023-12-02 19:31:54,280 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_rtnetlink_check_final_state [2023-12-02 19:31:54,280 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_rtnetlink_check_final_state [2023-12-02 19:31:54,280 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_request_irq [2023-12-02 19:31:54,280 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_request_irq [2023-12-02 19:31:54,280 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2023-12-02 19:31:54,281 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2023-12-02 19:31:54,281 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_remove_interface [2023-12-02 19:31:54,281 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_remove_interface [2023-12-02 19:31:54,281 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_linux_kernel_locking_spinlock_spin_lock [2023-12-02 19:31:54,281 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_linux_kernel_locking_spinlock_spin_lock [2023-12-02 19:31:54,281 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_mapping_error [2023-12-02 19:31:54,281 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_mapping_error [2023-12-02 19:31:54,281 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225_read [2023-12-02 19:31:54,281 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225_read [2023-12-02 19:31:54,282 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_handle_rx [2023-12-02 19:31:54,282 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_handle_rx [2023-12-02 19:31:54,282 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_rwlock_check_final_state [2023-12-02 19:31:54,282 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_rwlock_check_final_state [2023-12-02 19:31:54,282 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_fs_char_dev_check_final_state [2023-12-02 19:31:54,282 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_fs_char_dev_check_final_state [2023-12-02 19:31:54,282 INFO L130 BoogieDeclarations]: Found specification of procedure eeprom_93cx6_read [2023-12-02 19:31:54,282 INFO L138 BoogieDeclarations]: Found implementation of procedure eeprom_93cx6_read [2023-12-02 19:31:54,282 INFO L130 BoogieDeclarations]: Found specification of procedure dev_alloc_skb [2023-12-02 19:31:54,282 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_alloc_skb [2023-12-02 19:31:54,283 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_handle_tx [2023-12-02 19:31:54,283 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_handle_tx [2023-12-02 19:31:54,283 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~$Pointer$~TO~int [2023-12-02 19:31:54,283 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~$Pointer$~TO~int [2023-12-02 19:31:54,283 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_drivers_base_class_check_final_state [2023-12-02 19:31:54,283 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_drivers_base_class_check_final_state [2023-12-02 19:31:54,283 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_len [2023-12-02 19:31:54,283 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_len [2023-12-02 19:31:54,283 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2023-12-02 19:31:54,284 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2023-12-02 19:31:54,284 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_sched_check_final_state [2023-12-02 19:31:54,284 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_sched_check_final_state [2023-12-02 19:31:54,284 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2023-12-02 19:31:54,284 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2023-12-02 19:31:54,284 INFO L130 BoogieDeclarations]: Found specification of procedure rtl818x_iowrite32 [2023-12-02 19:31:54,284 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl818x_iowrite32 [2023-12-02 19:31:54,284 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 19:31:54,284 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_config [2023-12-02 19:31:54,284 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_config [2023-12-02 19:31:54,285 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8187se_three_wire_io [2023-12-02 19:31:54,285 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8187se_three_wire_io [2023-12-02 19:31:54,285 INFO L130 BoogieDeclarations]: Found specification of procedure rtl818x_iowrite16 [2023-12-02 19:31:54,285 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl818x_iowrite16 [2023-12-02 19:31:55,489 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 19:31:55,493 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 19:31:55,906 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-12-02 19:32:08,176 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 19:32:12,923 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 19:32:12,923 INFO L309 CfgBuilder]: Removed 78 assume(true) statements. [2023-12-02 19:32:12,926 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 07:32:12 BoogieIcfgContainer [2023-12-02 19:32:12,926 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 19:32:12,928 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 19:32:12,928 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 19:32:12,930 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 19:32:12,931 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 07:31:46" (1/3) ... [2023-12-02 19:32:12,931 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ede6e0b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 07:32:12, skipping insertion in model container [2023-12-02 19:32:12,931 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:31:53" (2/3) ... [2023-12-02 19:32:12,932 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ede6e0b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 07:32:12, skipping insertion in model container [2023-12-02 19:32:12,932 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 07:32:12" (3/3) ... [2023-12-02 19:32:12,933 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.0-rc1---drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko.cil.i [2023-12-02 19:32:12,948 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 19:32:12,948 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 29 error locations. [2023-12-02 19:32:13,045 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 19:32:13,050 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;@48ad69c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 19:32:13,051 INFO L358 AbstractCegarLoop]: Starting to check reachability of 29 error locations. [2023-12-02 19:32:13,067 INFO L276 IsEmpty]: Start isEmpty. Operand has 3585 states, 1765 states have (on average 1.2657223796033994) internal successors, (2234), 1963 states have internal predecessors, (2234), 1711 states have call successors, (1711), 158 states have call predecessors, (1711), 157 states have return successors, (1701), 1657 states have call predecessors, (1701), 1701 states have call successors, (1701) [2023-12-02 19:32:13,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2023-12-02 19:32:13,076 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:32:13,077 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 19:32:13,077 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_linux_arch_io_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2023-12-02 19:32:13,082 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:32:13,082 INFO L85 PathProgramCache]: Analyzing trace with hash -297725409, now seen corresponding path program 1 times [2023-12-02 19:32:13,090 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:32:13,090 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2034079786] [2023-12-02 19:32:13,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:32:13,091 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:32:13,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:32:14,800 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-12-02 19:32:14,800 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:32:14,801 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2034079786] [2023-12-02 19:32:14,801 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2034079786] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:32:14,801 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 19:32:14,802 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-02 19:32:14,803 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1768435369] [2023-12-02 19:32:14,804 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:32:14,808 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 19:32:14,808 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 19:32:14,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 19:32:14,831 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-02 19:32:14,840 INFO L87 Difference]: Start difference. First operand has 3585 states, 1765 states have (on average 1.2657223796033994) internal successors, (2234), 1963 states have internal predecessors, (2234), 1711 states have call successors, (1711), 158 states have call predecessors, (1711), 157 states have return successors, (1701), 1657 states have call predecessors, (1701), 1701 states have call successors, (1701) Second operand has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-12-02 19:32:19,058 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-02 19:32:21,067 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-02 19:32:23,288 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.64s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:32:24,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:32:24,681 INFO L93 Difference]: Finished difference Result 6910 states and 10982 transitions. [2023-12-02 19:32:24,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 19:32:24,684 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 47 [2023-12-02 19:32:24,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:32:24,741 INFO L225 Difference]: With dead ends: 6910 [2023-12-02 19:32:24,741 INFO L226 Difference]: Without dead ends: 3330 [2023-12-02 19:32:24,790 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-02 19:32:24,793 INFO L413 NwaCegarLoop]: 4677 mSDtfsCounter, 5126 mSDsluCounter, 4677 mSDsCounter, 0 mSdLazyCounter, 932 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5126 SdHoareTripleChecker+Valid, 9354 SdHoareTripleChecker+Invalid, 934 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 932 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.3s IncrementalHoareTripleChecker+Time [2023-12-02 19:32:24,794 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5126 Valid, 9354 Invalid, 934 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 932 Invalid, 2 Unknown, 0 Unchecked, 9.3s Time] [2023-12-02 19:32:24,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3330 states. [2023-12-02 19:32:25,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3330 to 3330. [2023-12-02 19:32:25,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3330 states, 1523 states have (on average 1.2304661851608667) internal successors, (1874), 1642 states have internal predecessors, (1874), 1623 states have call successors, (1623), 157 states have call predecessors, (1623), 156 states have return successors, (1621), 1577 states have call predecessors, (1621), 1621 states have call successors, (1621) [2023-12-02 19:32:25,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3330 states to 3330 states and 5118 transitions. [2023-12-02 19:32:25,295 INFO L78 Accepts]: Start accepts. Automaton has 3330 states and 5118 transitions. Word has length 47 [2023-12-02 19:32:25,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:32:25,297 INFO L495 AbstractCegarLoop]: Abstraction has 3330 states and 5118 transitions. [2023-12-02 19:32:25,297 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-12-02 19:32:25,297 INFO L276 IsEmpty]: Start isEmpty. Operand 3330 states and 5118 transitions. [2023-12-02 19:32:25,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2023-12-02 19:32:25,300 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:32:25,301 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 19:32:25,301 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-02 19:32:25,301 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_linux_block_genhd_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2023-12-02 19:32:25,302 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:32:25,302 INFO L85 PathProgramCache]: Analyzing trace with hash -436464521, now seen corresponding path program 1 times [2023-12-02 19:32:25,302 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:32:25,302 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1619388025] [2023-12-02 19:32:25,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:32:25,303 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:32:25,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:32:26,643 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-12-02 19:32:26,644 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:32:26,644 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1619388025] [2023-12-02 19:32:26,644 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1619388025] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:32:26,644 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 19:32:26,644 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-02 19:32:26,644 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1856780816] [2023-12-02 19:32:26,644 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:32:26,646 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 19:32:26,646 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 19:32:26,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 19:32:26,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-02 19:32:26,647 INFO L87 Difference]: Start difference. First operand 3330 states and 5118 transitions. Second operand has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-12-02 19:32:29,927 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:32:33,079 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-02 19:32:35,087 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-02 19:32:37,463 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.86s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:32:39,337 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.87s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:32:40,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:32:40,521 INFO L93 Difference]: Finished difference Result 3330 states and 5118 transitions. [2023-12-02 19:32:40,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 19:32:40,521 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 52 [2023-12-02 19:32:40,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:32:40,555 INFO L225 Difference]: With dead ends: 3330 [2023-12-02 19:32:40,555 INFO L226 Difference]: Without dead ends: 3328 [2023-12-02 19:32:40,558 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-02 19:32:40,559 INFO L413 NwaCegarLoop]: 4649 mSDtfsCounter, 5096 mSDsluCounter, 4649 mSDsCounter, 0 mSdLazyCounter, 929 mSolverCounterSat, 0 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5096 SdHoareTripleChecker+Valid, 9298 SdHoareTripleChecker+Invalid, 932 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 929 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.6s IncrementalHoareTripleChecker+Time [2023-12-02 19:32:40,559 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5096 Valid, 9298 Invalid, 932 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 929 Invalid, 3 Unknown, 0 Unchecked, 13.6s Time] [2023-12-02 19:32:40,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3328 states. [2023-12-02 19:32:40,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3328 to 3328. [2023-12-02 19:32:40,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3328 states, 1522 states have (on average 1.2299605781865965) internal successors, (1872), 1640 states have internal predecessors, (1872), 1623 states have call successors, (1623), 157 states have call predecessors, (1623), 156 states have return successors, (1621), 1577 states have call predecessors, (1621), 1621 states have call successors, (1621) [2023-12-02 19:32:40,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3328 states to 3328 states and 5116 transitions. [2023-12-02 19:32:40,896 INFO L78 Accepts]: Start accepts. Automaton has 3328 states and 5116 transitions. Word has length 52 [2023-12-02 19:32:40,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:32:40,896 INFO L495 AbstractCegarLoop]: Abstraction has 3328 states and 5116 transitions. [2023-12-02 19:32:40,896 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-12-02 19:32:40,897 INFO L276 IsEmpty]: Start isEmpty. Operand 3328 states and 5116 transitions. [2023-12-02 19:32:40,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-12-02 19:32:40,899 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:32:40,900 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 19:32:40,900 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-02 19:32:40,900 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_linux_block_queue_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2023-12-02 19:32:40,901 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:32:40,901 INFO L85 PathProgramCache]: Analyzing trace with hash -763944043, now seen corresponding path program 1 times [2023-12-02 19:32:40,901 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:32:40,901 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1696606669] [2023-12-02 19:32:40,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:32:40,901 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:32:41,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:32:41,729 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-12-02 19:32:41,730 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:32:41,730 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1696606669] [2023-12-02 19:32:41,730 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1696606669] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:32:41,730 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 19:32:41,730 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-02 19:32:41,730 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [264339601] [2023-12-02 19:32:41,730 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:32:41,731 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 19:32:41,731 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 19:32:41,731 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 19:32:41,731 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-02 19:32:41,732 INFO L87 Difference]: Start difference. First operand 3328 states and 5116 transitions. Second operand has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-12-02 19:32:45,376 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-02 19:32:47,384 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-02 19:32:49,133 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:32:50,990 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.86s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:32:52,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:32:52,684 INFO L93 Difference]: Finished difference Result 3328 states and 5116 transitions. [2023-12-02 19:32:52,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 19:32:52,684 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 57 [2023-12-02 19:32:52,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:32:52,715 INFO L225 Difference]: With dead ends: 3328 [2023-12-02 19:32:52,715 INFO L226 Difference]: Without dead ends: 3326 [2023-12-02 19:32:52,722 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-02 19:32:52,723 INFO L413 NwaCegarLoop]: 4647 mSDtfsCounter, 5093 mSDsluCounter, 4647 mSDsCounter, 0 mSdLazyCounter, 930 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5093 SdHoareTripleChecker+Valid, 9294 SdHoareTripleChecker+Invalid, 932 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 930 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.7s IncrementalHoareTripleChecker+Time [2023-12-02 19:32:52,723 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5093 Valid, 9294 Invalid, 932 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 930 Invalid, 2 Unknown, 0 Unchecked, 10.7s Time] [2023-12-02 19:32:52,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3326 states. [2023-12-02 19:32:53,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3326 to 3326. [2023-12-02 19:32:53,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3326 states, 1521 states have (on average 1.2294543063773833) internal successors, (1870), 1638 states have internal predecessors, (1870), 1623 states have call successors, (1623), 157 states have call predecessors, (1623), 156 states have return successors, (1621), 1577 states have call predecessors, (1621), 1621 states have call successors, (1621) [2023-12-02 19:32:53,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3326 states to 3326 states and 5114 transitions. [2023-12-02 19:32:53,085 INFO L78 Accepts]: Start accepts. Automaton has 3326 states and 5114 transitions. Word has length 57 [2023-12-02 19:32:53,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:32:53,086 INFO L495 AbstractCegarLoop]: Abstraction has 3326 states and 5114 transitions. [2023-12-02 19:32:53,086 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-12-02 19:32:53,087 INFO L276 IsEmpty]: Start isEmpty. Operand 3326 states and 5114 transitions. [2023-12-02 19:32:53,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-12-02 19:32:53,089 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:32:53,089 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 19:32:53,089 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-02 19:32:53,090 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_linux_block_request_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2023-12-02 19:32:53,090 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:32:53,090 INFO L85 PathProgramCache]: Analyzing trace with hash -479595381, now seen corresponding path program 1 times [2023-12-02 19:32:53,091 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:32:53,091 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [859402000] [2023-12-02 19:32:53,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:32:53,091 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:32:53,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:32:53,978 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-12-02 19:32:53,978 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:32:53,978 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [859402000] [2023-12-02 19:32:53,978 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [859402000] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:32:53,978 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 19:32:53,979 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-02 19:32:53,979 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [508647406] [2023-12-02 19:32:53,979 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:32:53,979 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 19:32:53,979 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 19:32:53,980 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 19:32:53,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-02 19:32:53,980 INFO L87 Difference]: Start difference. First operand 3326 states and 5114 transitions. Second operand has 4 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-02 19:32:56,000 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:32:58,471 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-02 19:33:00,475 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-02 19:33:02,988 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:33:04,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:33:04,541 INFO L93 Difference]: Finished difference Result 3326 states and 5114 transitions. [2023-12-02 19:33:04,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 19:33:04,541 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 62 [2023-12-02 19:33:04,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:33:04,560 INFO L225 Difference]: With dead ends: 3326 [2023-12-02 19:33:04,561 INFO L226 Difference]: Without dead ends: 3324 [2023-12-02 19:33:04,563 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-02 19:33:04,564 INFO L413 NwaCegarLoop]: 4645 mSDtfsCounter, 5090 mSDsluCounter, 4645 mSDsCounter, 0 mSdLazyCounter, 929 mSolverCounterSat, 0 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5090 SdHoareTripleChecker+Valid, 9290 SdHoareTripleChecker+Invalid, 932 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 929 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.3s IncrementalHoareTripleChecker+Time [2023-12-02 19:33:04,564 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5090 Valid, 9290 Invalid, 932 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 929 Invalid, 3 Unknown, 0 Unchecked, 10.3s Time] [2023-12-02 19:33:04,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3324 states. [2023-12-02 19:33:04,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3324 to 3324. [2023-12-02 19:33:04,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3324 states, 1520 states have (on average 1.2289473684210526) internal successors, (1868), 1636 states have internal predecessors, (1868), 1623 states have call successors, (1623), 157 states have call predecessors, (1623), 156 states have return successors, (1621), 1577 states have call predecessors, (1621), 1621 states have call successors, (1621) [2023-12-02 19:33:04,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3324 states to 3324 states and 5112 transitions. [2023-12-02 19:33:04,877 INFO L78 Accepts]: Start accepts. Automaton has 3324 states and 5112 transitions. Word has length 62 [2023-12-02 19:33:04,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:33:04,877 INFO L495 AbstractCegarLoop]: Abstraction has 3324 states and 5112 transitions. [2023-12-02 19:33:04,878 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-02 19:33:04,878 INFO L276 IsEmpty]: Start isEmpty. Operand 3324 states and 5112 transitions. [2023-12-02 19:33:04,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2023-12-02 19:33:04,880 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:33:04,881 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 19:33:04,881 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-02 19:33:04,881 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_linux_drivers_base_class_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2023-12-02 19:33:04,881 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:33:04,882 INFO L85 PathProgramCache]: Analyzing trace with hash 567584879, now seen corresponding path program 1 times [2023-12-02 19:33:04,882 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:33:04,882 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [68390580] [2023-12-02 19:33:04,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:33:04,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:33:05,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:33:05,699 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-12-02 19:33:05,699 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:33:05,699 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [68390580] [2023-12-02 19:33:05,700 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [68390580] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:33:05,700 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 19:33:05,700 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-02 19:33:05,700 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1846550582] [2023-12-02 19:33:05,700 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:33:05,701 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 19:33:05,701 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 19:33:05,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 19:33:05,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-02 19:33:05,702 INFO L87 Difference]: Start difference. First operand 3324 states and 5112 transitions. Second operand has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-02 19:33:09,442 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-02 19:33:11,451 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-02 19:33:13,634 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.73s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:33:14,929 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:33:15,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:33:15,944 INFO L93 Difference]: Finished difference Result 3324 states and 5112 transitions. [2023-12-02 19:33:15,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 19:33:15,944 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 67 [2023-12-02 19:33:15,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:33:15,963 INFO L225 Difference]: With dead ends: 3324 [2023-12-02 19:33:15,963 INFO L226 Difference]: Without dead ends: 3322 [2023-12-02 19:33:15,965 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-02 19:33:15,966 INFO L413 NwaCegarLoop]: 4643 mSDtfsCounter, 5087 mSDsluCounter, 4643 mSDsCounter, 0 mSdLazyCounter, 930 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5087 SdHoareTripleChecker+Valid, 9286 SdHoareTripleChecker+Invalid, 932 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 930 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.0s IncrementalHoareTripleChecker+Time [2023-12-02 19:33:15,966 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5087 Valid, 9286 Invalid, 932 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 930 Invalid, 2 Unknown, 0 Unchecked, 10.0s Time] [2023-12-02 19:33:15,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3322 states. [2023-12-02 19:33:16,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3322 to 3322. [2023-12-02 19:33:16,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3322 states, 1519 states have (on average 1.228439763001975) internal successors, (1866), 1634 states have internal predecessors, (1866), 1623 states have call successors, (1623), 157 states have call predecessors, (1623), 156 states have return successors, (1621), 1577 states have call predecessors, (1621), 1621 states have call successors, (1621) [2023-12-02 19:33:16,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3322 states to 3322 states and 5110 transitions. [2023-12-02 19:33:16,229 INFO L78 Accepts]: Start accepts. Automaton has 3322 states and 5110 transitions. Word has length 67 [2023-12-02 19:33:16,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:33:16,230 INFO L495 AbstractCegarLoop]: Abstraction has 3322 states and 5110 transitions. [2023-12-02 19:33:16,230 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-02 19:33:16,231 INFO L276 IsEmpty]: Start isEmpty. Operand 3322 states and 5110 transitions. [2023-12-02 19:33:16,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2023-12-02 19:33:16,232 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:33:16,233 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 19:33:16,233 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-02 19:33:16,233 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_linux_fs_char_dev_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2023-12-02 19:33:16,233 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:33:16,234 INFO L85 PathProgramCache]: Analyzing trace with hash 66655751, now seen corresponding path program 1 times [2023-12-02 19:33:16,234 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:33:16,234 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1081936806] [2023-12-02 19:33:16,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:33:16,234 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:33:16,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:33:16,938 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-12-02 19:33:16,938 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:33:16,938 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1081936806] [2023-12-02 19:33:16,939 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1081936806] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:33:16,939 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 19:33:16,939 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-02 19:33:16,939 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1422203833] [2023-12-02 19:33:16,939 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:33:16,940 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 19:33:16,940 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 19:33:16,940 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 19:33:16,940 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-02 19:33:16,941 INFO L87 Difference]: Start difference. First operand 3322 states and 5110 transitions. Second operand has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-02 19:33:20,523 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:33:23,094 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-02 19:33:25,100 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-02 19:33:26,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:33:26,840 INFO L93 Difference]: Finished difference Result 3322 states and 5110 transitions. [2023-12-02 19:33:26,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 19:33:26,841 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 72 [2023-12-02 19:33:26,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:33:26,861 INFO L225 Difference]: With dead ends: 3322 [2023-12-02 19:33:26,861 INFO L226 Difference]: Without dead ends: 3320 [2023-12-02 19:33:26,864 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-02 19:33:26,865 INFO L413 NwaCegarLoop]: 4641 mSDtfsCounter, 5084 mSDsluCounter, 4641 mSDsCounter, 0 mSdLazyCounter, 929 mSolverCounterSat, 0 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5084 SdHoareTripleChecker+Valid, 9282 SdHoareTripleChecker+Invalid, 932 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 929 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.6s IncrementalHoareTripleChecker+Time [2023-12-02 19:33:26,865 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5084 Valid, 9282 Invalid, 932 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 929 Invalid, 3 Unknown, 0 Unchecked, 9.6s Time] [2023-12-02 19:33:26,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3320 states. [2023-12-02 19:33:27,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3320 to 3320. [2023-12-02 19:33:27,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3320 states, 1518 states have (on average 1.227931488801054) internal successors, (1864), 1632 states have internal predecessors, (1864), 1623 states have call successors, (1623), 157 states have call predecessors, (1623), 156 states have return successors, (1621), 1577 states have call predecessors, (1621), 1621 states have call successors, (1621) [2023-12-02 19:33:27,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3320 states to 3320 states and 5108 transitions. [2023-12-02 19:33:27,132 INFO L78 Accepts]: Start accepts. Automaton has 3320 states and 5108 transitions. Word has length 72 [2023-12-02 19:33:27,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:33:27,132 INFO L495 AbstractCegarLoop]: Abstraction has 3320 states and 5108 transitions. [2023-12-02 19:33:27,132 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-02 19:33:27,132 INFO L276 IsEmpty]: Start isEmpty. Operand 3320 states and 5108 transitions. [2023-12-02 19:33:27,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2023-12-02 19:33:27,134 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:33:27,134 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 19:33:27,134 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-02 19:33:27,134 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2023-12-02 19:33:27,134 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:33:27,135 INFO L85 PathProgramCache]: Analyzing trace with hash 827091903, now seen corresponding path program 1 times [2023-12-02 19:33:27,135 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:33:27,135 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1429173036] [2023-12-02 19:33:27,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:33:27,135 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:33:27,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:33:27,854 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-12-02 19:33:27,854 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:33:27,854 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1429173036] [2023-12-02 19:33:27,855 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1429173036] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:33:27,855 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 19:33:27,855 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-02 19:33:27,855 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1164036473] [2023-12-02 19:33:27,855 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:33:27,856 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 19:33:27,856 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 19:33:27,856 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 19:33:27,856 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-02 19:33:27,856 INFO L87 Difference]: Start difference. First operand 3320 states and 5108 transitions. Second operand has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2023-12-02 19:33:30,791 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.69s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:33:33,286 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-02 19:33:35,294 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-02 19:33:39,019 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:33:40,162 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:33:40,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:33:40,506 INFO L93 Difference]: Finished difference Result 3320 states and 5108 transitions. [2023-12-02 19:33:40,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 19:33:40,506 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 77 [2023-12-02 19:33:40,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:33:40,524 INFO L225 Difference]: With dead ends: 3320 [2023-12-02 19:33:40,524 INFO L226 Difference]: Without dead ends: 3318 [2023-12-02 19:33:40,528 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-02 19:33:40,528 INFO L413 NwaCegarLoop]: 4639 mSDtfsCounter, 5081 mSDsluCounter, 4639 mSDsCounter, 0 mSdLazyCounter, 929 mSolverCounterSat, 0 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5081 SdHoareTripleChecker+Valid, 9278 SdHoareTripleChecker+Invalid, 932 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 929 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.4s IncrementalHoareTripleChecker+Time [2023-12-02 19:33:40,529 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5081 Valid, 9278 Invalid, 932 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 929 Invalid, 3 Unknown, 0 Unchecked, 12.4s Time] [2023-12-02 19:33:40,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3318 states. [2023-12-02 19:33:40,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3318 to 3318. [2023-12-02 19:33:40,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3318 states, 1517 states have (on average 1.2274225444957152) internal successors, (1862), 1630 states have internal predecessors, (1862), 1623 states have call successors, (1623), 157 states have call predecessors, (1623), 156 states have return successors, (1621), 1577 states have call predecessors, (1621), 1621 states have call successors, (1621) [2023-12-02 19:33:40,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3318 states to 3318 states and 5106 transitions. [2023-12-02 19:33:40,810 INFO L78 Accepts]: Start accepts. Automaton has 3318 states and 5106 transitions. Word has length 77 [2023-12-02 19:33:40,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:33:40,810 INFO L495 AbstractCegarLoop]: Abstraction has 3318 states and 5106 transitions. [2023-12-02 19:33:40,811 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2023-12-02 19:33:40,811 INFO L276 IsEmpty]: Start isEmpty. Operand 3318 states and 5106 transitions. [2023-12-02 19:33:40,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-12-02 19:33:40,813 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:33:40,813 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 19:33:40,813 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-02 19:33:40,813 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2023-12-02 19:33:40,813 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:33:40,814 INFO L85 PathProgramCache]: Analyzing trace with hash 162546046, now seen corresponding path program 1 times [2023-12-02 19:33:40,814 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:33:40,814 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1393155302] [2023-12-02 19:33:40,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:33:40,814 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:33:41,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:33:41,789 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2023-12-02 19:33:41,789 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:33:41,790 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1393155302] [2023-12-02 19:33:41,790 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1393155302] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:33:41,790 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 19:33:41,790 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 19:33:41,790 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [615203967] [2023-12-02 19:33:41,790 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:33:41,791 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 19:33:41,791 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 19:33:41,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 19:33:41,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 19:33:41,792 INFO L87 Difference]: Start difference. First operand 3318 states and 5106 transitions. Second operand has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-02 19:33:44,175 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:33:46,892 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-02 19:33:49,265 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:33:50,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:33:50,686 INFO L93 Difference]: Finished difference Result 6614 states and 10180 transitions. [2023-12-02 19:33:50,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 19:33:50,686 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 93 [2023-12-02 19:33:50,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:33:50,712 INFO L225 Difference]: With dead ends: 6614 [2023-12-02 19:33:50,712 INFO L226 Difference]: Without dead ends: 3314 [2023-12-02 19:33:50,737 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 19:33:50,738 INFO L413 NwaCegarLoop]: 4635 mSDtfsCounter, 5090 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 463 mSolverCounterSat, 1 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5090 SdHoareTripleChecker+Valid, 4635 SdHoareTripleChecker+Invalid, 467 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 463 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.5s IncrementalHoareTripleChecker+Time [2023-12-02 19:33:50,738 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5090 Valid, 4635 Invalid, 467 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 463 Invalid, 3 Unknown, 0 Unchecked, 8.5s Time] [2023-12-02 19:33:50,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3314 states. [2023-12-02 19:33:51,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3314 to 3314. [2023-12-02 19:33:51,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3314 states, 1514 states have (on average 1.226552179656539) internal successors, (1857), 1626 states have internal predecessors, (1857), 1623 states have call successors, (1623), 157 states have call predecessors, (1623), 156 states have return successors, (1621), 1577 states have call predecessors, (1621), 1621 states have call successors, (1621) [2023-12-02 19:33:51,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3314 states to 3314 states and 5101 transitions. [2023-12-02 19:33:51,126 INFO L78 Accepts]: Start accepts. Automaton has 3314 states and 5101 transitions. Word has length 93 [2023-12-02 19:33:51,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:33:51,126 INFO L495 AbstractCegarLoop]: Abstraction has 3314 states and 5101 transitions. [2023-12-02 19:33:51,126 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-02 19:33:51,127 INFO L276 IsEmpty]: Start isEmpty. Operand 3314 states and 5101 transitions. [2023-12-02 19:33:51,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2023-12-02 19:33:51,128 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:33:51,128 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 19:33:51,128 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-02 19:33:51,128 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_linux_kernel_locking_rwlock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2023-12-02 19:33:51,128 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:33:51,129 INFO L85 PathProgramCache]: Analyzing trace with hash 64987644, now seen corresponding path program 1 times [2023-12-02 19:33:51,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:33:51,129 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1900051903] [2023-12-02 19:33:51,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:33:51,129 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:33:51,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:33:51,962 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-12-02 19:33:51,962 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:33:51,963 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1900051903] [2023-12-02 19:33:51,963 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1900051903] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:33:51,963 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 19:33:51,963 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-02 19:33:51,963 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1283953236] [2023-12-02 19:33:51,963 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:33:51,964 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 19:33:51,964 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 19:33:51,964 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 19:33:51,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-02 19:33:51,965 INFO L87 Difference]: Start difference. First operand 3314 states and 5101 transitions. Second operand has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-12-02 19:33:56,365 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-02 19:33:58,372 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-02 19:34:00,472 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.62s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:34:02,481 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:34:04,611 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:34:05,683 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:34:06,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:34:06,176 INFO L93 Difference]: Finished difference Result 3314 states and 5101 transitions. [2023-12-02 19:34:06,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 19:34:06,176 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 82 [2023-12-02 19:34:06,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:34:06,189 INFO L225 Difference]: With dead ends: 3314 [2023-12-02 19:34:06,189 INFO L226 Difference]: Without dead ends: 3312 [2023-12-02 19:34:06,191 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-02 19:34:06,192 INFO L413 NwaCegarLoop]: 4632 mSDtfsCounter, 5073 mSDsluCounter, 4631 mSDsCounter, 0 mSdLazyCounter, 929 mSolverCounterSat, 0 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5073 SdHoareTripleChecker+Valid, 9263 SdHoareTripleChecker+Invalid, 933 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 929 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.9s IncrementalHoareTripleChecker+Time [2023-12-02 19:34:06,192 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5073 Valid, 9263 Invalid, 933 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 929 Invalid, 4 Unknown, 0 Unchecked, 13.9s Time] [2023-12-02 19:34:06,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3312 states. [2023-12-02 19:34:06,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3312 to 3312. [2023-12-02 19:34:06,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3312 states, 1513 states have (on average 1.2260409781890285) internal successors, (1855), 1624 states have internal predecessors, (1855), 1623 states have call successors, (1623), 157 states have call predecessors, (1623), 156 states have return successors, (1621), 1577 states have call predecessors, (1621), 1621 states have call successors, (1621) [2023-12-02 19:34:06,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3312 states to 3312 states and 5099 transitions. [2023-12-02 19:34:06,547 INFO L78 Accepts]: Start accepts. Automaton has 3312 states and 5099 transitions. Word has length 82 [2023-12-02 19:34:06,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:34:06,548 INFO L495 AbstractCegarLoop]: Abstraction has 3312 states and 5099 transitions. [2023-12-02 19:34:06,548 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-12-02 19:34:06,548 INFO L276 IsEmpty]: Start isEmpty. Operand 3312 states and 5099 transitions. [2023-12-02 19:34:06,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-12-02 19:34:06,549 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:34:06,550 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 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] [2023-12-02 19:34:06,550 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-12-02 19:34:06,550 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2023-12-02 19:34:06,550 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:34:06,550 INFO L85 PathProgramCache]: Analyzing trace with hash -1874607609, now seen corresponding path program 1 times [2023-12-02 19:34:06,550 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:34:06,550 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1151108844] [2023-12-02 19:34:06,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:34:06,551 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:34:06,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:34:07,247 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2023-12-02 19:34:07,247 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:34:07,247 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1151108844] [2023-12-02 19:34:07,247 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1151108844] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 19:34:07,248 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1234836495] [2023-12-02 19:34:07,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:34:07,248 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 19:34:07,248 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15db0991-aa30-49da-887f-d430cf43872e/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 19:34:07,250 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15db0991-aa30-49da-887f-d430cf43872e/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 19:34:07,257 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15db0991-aa30-49da-887f-d430cf43872e/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-02 19:34:08,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:34:08,927 INFO L262 TraceCheckSpWp]: Trace formula consists of 4637 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-02 19:34:08,939 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 19:34:08,991 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2023-12-02 19:34:08,991 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 19:34:08,991 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1234836495] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:34:08,991 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-02 19:34:08,992 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2023-12-02 19:34:08,992 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1372244359] [2023-12-02 19:34:08,992 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:34:08,992 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 19:34:08,992 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 19:34:08,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 19:34:08,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-12-02 19:34:08,993 INFO L87 Difference]: Start difference. First operand 3312 states and 5099 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), 2 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 19:34:12,121 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-02 19:34:13,750 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:34:14,861 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:34:15,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:34:15,166 INFO L93 Difference]: Finished difference Result 6602 states and 10166 transitions. [2023-12-02 19:34:15,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 19:34:15,167 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), 2 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 98 [2023-12-02 19:34:15,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:34:15,180 INFO L225 Difference]: With dead ends: 6602 [2023-12-02 19:34:15,180 INFO L226 Difference]: Without dead ends: 3308 [2023-12-02 19:34:15,195 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-12-02 19:34:15,195 INFO L413 NwaCegarLoop]: 4628 mSDtfsCounter, 5075 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 465 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5075 SdHoareTripleChecker+Valid, 4628 SdHoareTripleChecker+Invalid, 467 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 465 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2023-12-02 19:34:15,196 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5075 Valid, 4628 Invalid, 467 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 465 Invalid, 1 Unknown, 0 Unchecked, 5.8s Time] [2023-12-02 19:34:15,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3308 states. [2023-12-02 19:34:15,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3308 to 3308. [2023-12-02 19:34:15,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3308 states, 1510 states have (on average 1.2251655629139073) internal successors, (1850), 1620 states have internal predecessors, (1850), 1623 states have call successors, (1623), 157 states have call predecessors, (1623), 156 states have return successors, (1621), 1577 states have call predecessors, (1621), 1621 states have call successors, (1621) [2023-12-02 19:34:15,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3308 states to 3308 states and 5094 transitions. [2023-12-02 19:34:15,514 INFO L78 Accepts]: Start accepts. Automaton has 3308 states and 5094 transitions. Word has length 98 [2023-12-02 19:34:15,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:34:15,515 INFO L495 AbstractCegarLoop]: Abstraction has 3308 states and 5094 transitions. [2023-12-02 19:34:15,515 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), 2 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 19:34:15,515 INFO L276 IsEmpty]: Start isEmpty. Operand 3308 states and 5094 transitions. [2023-12-02 19:34:15,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2023-12-02 19:34:15,516 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:34:15,516 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 19:34:15,532 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15db0991-aa30-49da-887f-d430cf43872e/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-02 19:34:15,716 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15db0991-aa30-49da-887f-d430cf43872e/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-12-02 19:34:15,717 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_linux_kernel_locking_rwlock_check_final_stateErr1ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2023-12-02 19:34:15,717 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:34:15,717 INFO L85 PathProgramCache]: Analyzing trace with hash -1971201697, now seen corresponding path program 1 times [2023-12-02 19:34:15,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:34:15,717 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2119678945] [2023-12-02 19:34:15,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:34:15,717 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:34:16,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:34:16,402 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-12-02 19:34:16,402 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:34:16,403 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2119678945] [2023-12-02 19:34:16,403 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2119678945] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:34:16,403 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 19:34:16,403 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-02 19:34:16,403 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [395099325] [2023-12-02 19:34:16,403 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:34:16,404 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 19:34:16,404 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 19:34:16,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 19:34:16,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-02 19:34:16,405 INFO L87 Difference]: Start difference. First operand 3308 states and 5094 transitions. Second operand has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-12-02 19:34:20,687 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-02 19:34:22,696 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-02 19:34:24,304 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:34:25,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:34:25,556 INFO L93 Difference]: Finished difference Result 3308 states and 5094 transitions. [2023-12-02 19:34:25,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 19:34:25,556 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 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 84 [2023-12-02 19:34:25,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:34:25,569 INFO L225 Difference]: With dead ends: 3308 [2023-12-02 19:34:25,569 INFO L226 Difference]: Without dead ends: 3306 [2023-12-02 19:34:25,572 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-02 19:34:25,573 INFO L413 NwaCegarLoop]: 4625 mSDtfsCounter, 5064 mSDsluCounter, 4625 mSDsCounter, 0 mSdLazyCounter, 930 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5064 SdHoareTripleChecker+Valid, 9250 SdHoareTripleChecker+Invalid, 932 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 930 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.8s IncrementalHoareTripleChecker+Time [2023-12-02 19:34:25,573 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5064 Valid, 9250 Invalid, 932 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 930 Invalid, 2 Unknown, 0 Unchecked, 8.8s Time] [2023-12-02 19:34:25,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3306 states. [2023-12-02 19:34:25,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3306 to 3306. [2023-12-02 19:34:25,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3306 states, 1509 states have (on average 1.2246520874751492) internal successors, (1848), 1618 states have internal predecessors, (1848), 1623 states have call successors, (1623), 157 states have call predecessors, (1623), 156 states have return successors, (1621), 1577 states have call predecessors, (1621), 1621 states have call successors, (1621) [2023-12-02 19:34:25,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3306 states to 3306 states and 5092 transitions. [2023-12-02 19:34:25,983 INFO L78 Accepts]: Start accepts. Automaton has 3306 states and 5092 transitions. Word has length 84 [2023-12-02 19:34:25,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:34:25,983 INFO L495 AbstractCegarLoop]: Abstraction has 3306 states and 5092 transitions. [2023-12-02 19:34:25,983 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-12-02 19:34:25,983 INFO L276 IsEmpty]: Start isEmpty. Operand 3306 states and 5092 transitions. [2023-12-02 19:34:25,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2023-12-02 19:34:25,985 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:34:25,985 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 19:34:25,985 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-12-02 19:34:25,985 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_linux_kernel_module_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2023-12-02 19:34:25,986 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:34:25,986 INFO L85 PathProgramCache]: Analyzing trace with hash -974158701, now seen corresponding path program 1 times [2023-12-02 19:34:25,986 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:34:25,986 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [674604081] [2023-12-02 19:34:25,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:34:25,986 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:34:26,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:34:26,692 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-12-02 19:34:26,692 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:34:26,692 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [674604081] [2023-12-02 19:34:26,692 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [674604081] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:34:26,692 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 19:34:26,692 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-02 19:34:26,693 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1732714363] [2023-12-02 19:34:26,693 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:34:26,693 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 19:34:26,693 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 19:34:26,694 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 19:34:26,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-02 19:34:26,694 INFO L87 Difference]: Start difference. First operand 3306 states and 5092 transitions. Second operand has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-02 19:34:30,034 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:34:32,498 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-02 19:34:34,505 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-02 19:34:38,904 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:34:40,670 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.77s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:34:41,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:34:41,207 INFO L93 Difference]: Finished difference Result 3306 states and 5092 transitions. [2023-12-02 19:34:41,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 19:34:41,208 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 89 [2023-12-02 19:34:41,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:34:41,267 INFO L225 Difference]: With dead ends: 3306 [2023-12-02 19:34:41,267 INFO L226 Difference]: Without dead ends: 3304 [2023-12-02 19:34:41,269 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-02 19:34:41,269 INFO L413 NwaCegarLoop]: 4623 mSDtfsCounter, 5063 mSDsluCounter, 4623 mSDsCounter, 0 mSdLazyCounter, 928 mSolverCounterSat, 0 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5063 SdHoareTripleChecker+Valid, 9246 SdHoareTripleChecker+Invalid, 932 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 928 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.1s IncrementalHoareTripleChecker+Time [2023-12-02 19:34:41,270 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5063 Valid, 9246 Invalid, 932 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 928 Invalid, 4 Unknown, 0 Unchecked, 14.1s Time] [2023-12-02 19:34:41,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3304 states. [2023-12-02 19:34:41,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3304 to 3304. [2023-12-02 19:34:41,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3304 states, 1508 states have (on average 1.2241379310344827) internal successors, (1846), 1616 states have internal predecessors, (1846), 1623 states have call successors, (1623), 157 states have call predecessors, (1623), 156 states have return successors, (1621), 1577 states have call predecessors, (1621), 1621 states have call successors, (1621) [2023-12-02 19:34:41,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3304 states to 3304 states and 5090 transitions. [2023-12-02 19:34:41,626 INFO L78 Accepts]: Start accepts. Automaton has 3304 states and 5090 transitions. Word has length 89 [2023-12-02 19:34:41,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:34:41,627 INFO L495 AbstractCegarLoop]: Abstraction has 3304 states and 5090 transitions. [2023-12-02 19:34:41,627 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-02 19:34:41,627 INFO L276 IsEmpty]: Start isEmpty. Operand 3304 states and 5090 transitions. [2023-12-02 19:34:41,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2023-12-02 19:34:41,628 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:34:41,628 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 19:34:41,628 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-12-02 19:34:41,628 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_linux_kernel_rcu_update_lock_bh_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2023-12-02 19:34:41,629 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:34:41,629 INFO L85 PathProgramCache]: Analyzing trace with hash -1296824289, now seen corresponding path program 1 times [2023-12-02 19:34:41,629 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:34:41,629 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1080819298] [2023-12-02 19:34:41,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:34:41,629 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:34:41,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:34:42,222 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-12-02 19:34:42,222 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:34:42,223 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1080819298] [2023-12-02 19:34:42,223 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1080819298] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:34:42,223 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 19:34:42,223 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-02 19:34:42,223 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1838654080] [2023-12-02 19:34:42,223 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:34:42,224 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 19:34:42,224 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 19:34:42,224 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 19:34:42,224 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-02 19:34:42,225 INFO L87 Difference]: Start difference. First operand 3304 states and 5090 transitions. Second operand has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2023-12-02 19:34:46,392 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-02 19:34:48,398 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-02 19:34:51,886 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:34:53,075 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:34:54,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:34:54,306 INFO L93 Difference]: Finished difference Result 3304 states and 5090 transitions. [2023-12-02 19:34:54,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 19:34:54,306 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 94 [2023-12-02 19:34:54,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:34:54,319 INFO L225 Difference]: With dead ends: 3304 [2023-12-02 19:34:54,319 INFO L226 Difference]: Without dead ends: 3302 [2023-12-02 19:34:54,321 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-02 19:34:54,321 INFO L413 NwaCegarLoop]: 4621 mSDtfsCounter, 5060 mSDsluCounter, 4621 mSDsCounter, 0 mSdLazyCounter, 929 mSolverCounterSat, 0 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5060 SdHoareTripleChecker+Valid, 9242 SdHoareTripleChecker+Invalid, 932 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 929 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.6s IncrementalHoareTripleChecker+Time [2023-12-02 19:34:54,322 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5060 Valid, 9242 Invalid, 932 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 929 Invalid, 3 Unknown, 0 Unchecked, 11.6s Time] [2023-12-02 19:34:54,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3302 states. [2023-12-02 19:34:54,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3302 to 3302. [2023-12-02 19:34:54,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3302 states, 1507 states have (on average 1.223623092236231) internal successors, (1844), 1614 states have internal predecessors, (1844), 1623 states have call successors, (1623), 157 states have call predecessors, (1623), 156 states have return successors, (1621), 1577 states have call predecessors, (1621), 1621 states have call successors, (1621) [2023-12-02 19:34:54,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3302 states to 3302 states and 5088 transitions. [2023-12-02 19:34:54,704 INFO L78 Accepts]: Start accepts. Automaton has 3302 states and 5088 transitions. Word has length 94 [2023-12-02 19:34:54,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:34:54,705 INFO L495 AbstractCegarLoop]: Abstraction has 3302 states and 5088 transitions. [2023-12-02 19:34:54,705 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2023-12-02 19:34:54,705 INFO L276 IsEmpty]: Start isEmpty. Operand 3302 states and 5088 transitions. [2023-12-02 19:34:54,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2023-12-02 19:34:54,706 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:34:54,706 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 19:34:54,706 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-12-02 19:34:54,706 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_linux_kernel_rcu_update_lock_sched_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2023-12-02 19:34:54,707 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:34:54,707 INFO L85 PathProgramCache]: Analyzing trace with hash 1038603486, now seen corresponding path program 1 times [2023-12-02 19:34:54,707 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:34:54,707 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2030155727] [2023-12-02 19:34:54,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:34:54,707 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:34:55,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:34:55,394 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-12-02 19:34:55,394 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:34:55,394 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2030155727] [2023-12-02 19:34:55,394 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2030155727] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:34:55,395 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 19:34:55,395 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-02 19:34:55,395 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1906856513] [2023-12-02 19:34:55,395 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:34:55,395 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 19:34:55,396 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 19:34:55,396 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 19:34:55,396 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-02 19:34:55,396 INFO L87 Difference]: Start difference. First operand 3302 states and 5088 transitions. Second operand has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2023-12-02 19:34:57,726 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:35:00,695 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-02 19:35:02,701 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-02 19:35:05,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:35:05,696 INFO L93 Difference]: Finished difference Result 3302 states and 5088 transitions. [2023-12-02 19:35:05,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 19:35:05,696 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 99 [2023-12-02 19:35:05,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:35:05,709 INFO L225 Difference]: With dead ends: 3302 [2023-12-02 19:35:05,709 INFO L226 Difference]: Without dead ends: 3300 [2023-12-02 19:35:05,711 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-02 19:35:05,711 INFO L413 NwaCegarLoop]: 4619 mSDtfsCounter, 5057 mSDsluCounter, 4619 mSDsCounter, 0 mSdLazyCounter, 929 mSolverCounterSat, 0 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5057 SdHoareTripleChecker+Valid, 9238 SdHoareTripleChecker+Invalid, 932 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 929 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.8s IncrementalHoareTripleChecker+Time [2023-12-02 19:35:05,711 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5057 Valid, 9238 Invalid, 932 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 929 Invalid, 3 Unknown, 0 Unchecked, 9.8s Time] [2023-12-02 19:35:05,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3300 states. [2023-12-02 19:35:06,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3300 to 3300. [2023-12-02 19:35:06,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3300 states, 1506 states have (on average 1.2231075697211156) internal successors, (1842), 1612 states have internal predecessors, (1842), 1623 states have call successors, (1623), 157 states have call predecessors, (1623), 156 states have return successors, (1621), 1577 states have call predecessors, (1621), 1621 states have call successors, (1621) [2023-12-02 19:35:06,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3300 states to 3300 states and 5086 transitions. [2023-12-02 19:35:06,164 INFO L78 Accepts]: Start accepts. Automaton has 3300 states and 5086 transitions. Word has length 99 [2023-12-02 19:35:06,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:35:06,165 INFO L495 AbstractCegarLoop]: Abstraction has 3300 states and 5086 transitions. [2023-12-02 19:35:06,165 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2023-12-02 19:35:06,165 INFO L276 IsEmpty]: Start isEmpty. Operand 3300 states and 5086 transitions. [2023-12-02 19:35:06,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-12-02 19:35:06,166 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:35:06,166 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 19:35:06,166 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-12-02 19:35:06,166 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2023-12-02 19:35:06,166 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:35:06,167 INFO L85 PathProgramCache]: Analyzing trace with hash 1282611812, now seen corresponding path program 1 times [2023-12-02 19:35:06,167 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:35:06,167 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1250784426] [2023-12-02 19:35:06,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:35:06,167 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:35:06,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:35:06,790 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-12-02 19:35:06,790 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:35:06,790 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1250784426] [2023-12-02 19:35:06,790 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1250784426] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:35:06,790 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 19:35:06,791 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-02 19:35:06,791 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [77995848] [2023-12-02 19:35:06,791 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:35:06,791 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 19:35:06,791 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 19:35:06,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 19:35:06,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-02 19:35:06,792 INFO L87 Difference]: Start difference. First operand 3300 states and 5086 transitions. Second operand has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-12-02 19:35:09,516 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:35:12,013 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-02 19:35:14,020 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-02 19:35:18,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:35:18,383 INFO L93 Difference]: Finished difference Result 3300 states and 5086 transitions. [2023-12-02 19:35:18,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 19:35:18,384 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 104 [2023-12-02 19:35:18,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:35:18,401 INFO L225 Difference]: With dead ends: 3300 [2023-12-02 19:35:18,402 INFO L226 Difference]: Without dead ends: 3298 [2023-12-02 19:35:18,405 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-02 19:35:18,405 INFO L413 NwaCegarLoop]: 4617 mSDtfsCounter, 5054 mSDsluCounter, 4617 mSDsCounter, 0 mSdLazyCounter, 929 mSolverCounterSat, 0 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5054 SdHoareTripleChecker+Valid, 9234 SdHoareTripleChecker+Invalid, 932 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 929 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.1s IncrementalHoareTripleChecker+Time [2023-12-02 19:35:18,406 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5054 Valid, 9234 Invalid, 932 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 929 Invalid, 3 Unknown, 0 Unchecked, 11.1s Time] [2023-12-02 19:35:18,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3298 states. [2023-12-02 19:35:18,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3298 to 3298. [2023-12-02 19:35:18,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3298 states, 1505 states have (on average 1.2225913621262459) internal successors, (1840), 1610 states have internal predecessors, (1840), 1623 states have call successors, (1623), 157 states have call predecessors, (1623), 156 states have return successors, (1621), 1577 states have call predecessors, (1621), 1621 states have call successors, (1621) [2023-12-02 19:35:18,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3298 states to 3298 states and 5084 transitions. [2023-12-02 19:35:18,918 INFO L78 Accepts]: Start accepts. Automaton has 3298 states and 5084 transitions. Word has length 104 [2023-12-02 19:35:18,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:35:18,919 INFO L495 AbstractCegarLoop]: Abstraction has 3298 states and 5084 transitions. [2023-12-02 19:35:18,919 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-12-02 19:35:18,919 INFO L276 IsEmpty]: Start isEmpty. Operand 3298 states and 5084 transitions. [2023-12-02 19:35:18,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2023-12-02 19:35:18,921 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:35:18,921 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 19:35:18,921 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-12-02 19:35:18,921 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_linux_kernel_rcu_srcu_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2023-12-02 19:35:18,922 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:35:18,922 INFO L85 PathProgramCache]: Analyzing trace with hash 706280543, now seen corresponding path program 1 times [2023-12-02 19:35:18,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:35:18,922 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1912441544] [2023-12-02 19:35:18,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:35:18,922 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:35:19,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:35:19,527 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-12-02 19:35:19,527 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:35:19,527 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1912441544] [2023-12-02 19:35:19,528 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1912441544] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:35:19,528 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 19:35:19,528 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-02 19:35:19,528 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1343773087] [2023-12-02 19:35:19,528 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:35:19,528 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 19:35:19,529 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 19:35:19,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 19:35:19,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-02 19:35:19,529 INFO L87 Difference]: Start difference. First operand 3298 states and 5084 transitions. Second operand has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2023-12-02 19:35:23,244 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-02 19:35:25,252 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-02 19:35:27,715 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:35:29,721 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:35:31,853 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:35:32,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:35:32,907 INFO L93 Difference]: Finished difference Result 3298 states and 5084 transitions. [2023-12-02 19:35:32,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 19:35:32,908 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 109 [2023-12-02 19:35:32,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:35:32,917 INFO L225 Difference]: With dead ends: 3298 [2023-12-02 19:35:32,917 INFO L226 Difference]: Without dead ends: 3296 [2023-12-02 19:35:32,918 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-02 19:35:32,919 INFO L413 NwaCegarLoop]: 4615 mSDtfsCounter, 5051 mSDsluCounter, 4615 mSDsCounter, 0 mSdLazyCounter, 927 mSolverCounterSat, 0 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5051 SdHoareTripleChecker+Valid, 9230 SdHoareTripleChecker+Invalid, 932 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 927 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.8s IncrementalHoareTripleChecker+Time [2023-12-02 19:35:32,919 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5051 Valid, 9230 Invalid, 932 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 927 Invalid, 5 Unknown, 0 Unchecked, 12.8s Time] [2023-12-02 19:35:32,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3296 states. [2023-12-02 19:35:33,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3296 to 3296. [2023-12-02 19:35:33,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3296 states, 1504 states have (on average 1.2220744680851063) internal successors, (1838), 1608 states have internal predecessors, (1838), 1623 states have call successors, (1623), 157 states have call predecessors, (1623), 156 states have return successors, (1621), 1577 states have call predecessors, (1621), 1621 states have call successors, (1621) [2023-12-02 19:35:33,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3296 states to 3296 states and 5082 transitions. [2023-12-02 19:35:33,335 INFO L78 Accepts]: Start accepts. Automaton has 3296 states and 5082 transitions. Word has length 109 [2023-12-02 19:35:33,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:35:33,336 INFO L495 AbstractCegarLoop]: Abstraction has 3296 states and 5082 transitions. [2023-12-02 19:35:33,336 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2023-12-02 19:35:33,336 INFO L276 IsEmpty]: Start isEmpty. Operand 3296 states and 5082 transitions. [2023-12-02 19:35:33,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2023-12-02 19:35:33,338 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:35:33,338 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 19:35:33,338 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-12-02 19:35:33,338 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_linux_lib_idr_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2023-12-02 19:35:33,338 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:35:33,338 INFO L85 PathProgramCache]: Analyzing trace with hash -997204280, now seen corresponding path program 1 times [2023-12-02 19:35:33,339 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:35:33,339 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1386800496] [2023-12-02 19:35:33,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:35:33,339 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:35:33,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:35:34,012 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-12-02 19:35:34,012 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:35:34,012 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1386800496] [2023-12-02 19:35:34,012 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1386800496] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:35:34,013 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 19:35:34,013 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-02 19:35:34,013 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1239050058] [2023-12-02 19:35:34,013 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:35:34,013 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 19:35:34,013 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 19:35:34,014 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 19:35:34,014 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-02 19:35:34,014 INFO L87 Difference]: Start difference. First operand 3296 states and 5082 transitions. Second operand has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2023-12-02 19:35:38,688 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-02 19:35:40,698 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-02 19:35:43,403 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:35:45,411 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:35:47,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:35:47,666 INFO L93 Difference]: Finished difference Result 3296 states and 5082 transitions. [2023-12-02 19:35:47,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 19:35:47,666 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 114 [2023-12-02 19:35:47,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:35:47,677 INFO L225 Difference]: With dead ends: 3296 [2023-12-02 19:35:47,678 INFO L226 Difference]: Without dead ends: 3294 [2023-12-02 19:35:47,680 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-02 19:35:47,680 INFO L413 NwaCegarLoop]: 4613 mSDtfsCounter, 5048 mSDsluCounter, 4613 mSDsCounter, 0 mSdLazyCounter, 928 mSolverCounterSat, 0 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5048 SdHoareTripleChecker+Valid, 9226 SdHoareTripleChecker+Invalid, 932 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 928 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.0s IncrementalHoareTripleChecker+Time [2023-12-02 19:35:47,680 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5048 Valid, 9226 Invalid, 932 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 928 Invalid, 4 Unknown, 0 Unchecked, 13.0s Time] [2023-12-02 19:35:47,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3294 states. [2023-12-02 19:35:48,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3294 to 3294. [2023-12-02 19:35:48,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3294 states, 1503 states have (on average 1.221556886227545) internal successors, (1836), 1606 states have internal predecessors, (1836), 1623 states have call successors, (1623), 157 states have call predecessors, (1623), 156 states have return successors, (1621), 1577 states have call predecessors, (1621), 1621 states have call successors, (1621) [2023-12-02 19:35:48,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3294 states to 3294 states and 5080 transitions. [2023-12-02 19:35:48,186 INFO L78 Accepts]: Start accepts. Automaton has 3294 states and 5080 transitions. Word has length 114 [2023-12-02 19:35:48,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:35:48,187 INFO L495 AbstractCegarLoop]: Abstraction has 3294 states and 5080 transitions. [2023-12-02 19:35:48,187 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2023-12-02 19:35:48,187 INFO L276 IsEmpty]: Start isEmpty. Operand 3294 states and 5080 transitions. [2023-12-02 19:35:48,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2023-12-02 19:35:48,189 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:35:48,189 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 4, 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] [2023-12-02 19:35:48,189 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-12-02 19:35:48,190 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_assert_linux_net_rtnetlink__double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2023-12-02 19:35:48,190 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:35:48,190 INFO L85 PathProgramCache]: Analyzing trace with hash 624354587, now seen corresponding path program 1 times [2023-12-02 19:35:48,190 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:35:48,190 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [204814242] [2023-12-02 19:35:48,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:35:48,190 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:35:48,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:35:49,140 INFO L134 CoverageAnalysis]: Checked inductivity of 178 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 178 trivial. 0 not checked. [2023-12-02 19:35:49,141 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:35:49,141 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [204814242] [2023-12-02 19:35:49,141 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [204814242] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:35:49,141 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 19:35:49,141 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-02 19:35:49,141 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1569131077] [2023-12-02 19:35:49,141 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:35:49,142 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-02 19:35:49,142 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 19:35:49,143 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-02 19:35:49,143 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-02 19:35:49,143 INFO L87 Difference]: Start difference. First operand 3294 states and 5080 transitions. Second operand has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2023-12-02 19:35:53,630 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-02 19:35:54,824 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-02 19:35:56,832 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-02 19:36:03,514 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.65s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:36:05,736 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-02 19:36:07,742 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-02 19:36:08,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:36:08,615 INFO L93 Difference]: Finished difference Result 5579 states and 8669 transitions. [2023-12-02 19:36:08,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-02 19:36:08,616 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 135 [2023-12-02 19:36:08,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:36:08,649 INFO L225 Difference]: With dead ends: 5579 [2023-12-02 19:36:08,649 INFO L226 Difference]: Without dead ends: 5577 [2023-12-02 19:36:08,652 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-02 19:36:08,653 INFO L413 NwaCegarLoop]: 4661 mSDtfsCounter, 4983 mSDsluCounter, 12691 mSDsCounter, 0 mSdLazyCounter, 1683 mSolverCounterSat, 2 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4984 SdHoareTripleChecker+Valid, 17352 SdHoareTripleChecker+Invalid, 1689 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1683 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.4s IncrementalHoareTripleChecker+Time [2023-12-02 19:36:08,653 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4984 Valid, 17352 Invalid, 1689 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 1683 Invalid, 4 Unknown, 0 Unchecked, 18.4s Time] [2023-12-02 19:36:08,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5577 states. [2023-12-02 19:36:09,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5577 to 5557. [2023-12-02 19:36:09,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5557 states, 2426 states have (on average 1.2048639736191262) internal successors, (2923), 2587 states have internal predecessors, (2923), 2857 states have call successors, (2857), 264 states have call predecessors, (2857), 262 states have return successors, (2865), 2782 states have call predecessors, (2865), 2855 states have call successors, (2865) [2023-12-02 19:36:10,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5557 states to 5557 states and 8645 transitions. [2023-12-02 19:36:10,010 INFO L78 Accepts]: Start accepts. Automaton has 5557 states and 8645 transitions. Word has length 135 [2023-12-02 19:36:10,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:36:10,010 INFO L495 AbstractCegarLoop]: Abstraction has 5557 states and 8645 transitions. [2023-12-02 19:36:10,010 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2023-12-02 19:36:10,010 INFO L276 IsEmpty]: Start isEmpty. Operand 5557 states and 8645 transitions. [2023-12-02 19:36:10,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2023-12-02 19:36:10,012 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:36:10,012 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 19:36:10,012 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-12-02 19:36:10,012 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_linux_mmc_sdio_func_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2023-12-02 19:36:10,013 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:36:10,013 INFO L85 PathProgramCache]: Analyzing trace with hash 392830133, now seen corresponding path program 1 times [2023-12-02 19:36:10,013 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:36:10,013 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1855284211] [2023-12-02 19:36:10,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:36:10,013 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:36:10,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:36:10,932 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-12-02 19:36:10,932 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:36:10,933 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1855284211] [2023-12-02 19:36:10,933 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1855284211] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:36:10,933 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 19:36:10,933 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-02 19:36:10,933 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1557577082] [2023-12-02 19:36:10,933 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:36:10,934 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 19:36:10,934 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 19:36:10,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 19:36:10,934 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-02 19:36:10,935 INFO L87 Difference]: Start difference. First operand 5557 states and 8645 transitions. Second operand has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2023-12-02 19:36:14,889 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-02 19:36:16,897 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-02 19:36:19,826 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.57s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:36:21,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:36:21,629 INFO L93 Difference]: Finished difference Result 5557 states and 8645 transitions. [2023-12-02 19:36:21,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 19:36:21,630 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 119 [2023-12-02 19:36:21,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:36:21,648 INFO L225 Difference]: With dead ends: 5557 [2023-12-02 19:36:21,648 INFO L226 Difference]: Without dead ends: 5555 [2023-12-02 19:36:21,651 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-02 19:36:21,651 INFO L413 NwaCegarLoop]: 4611 mSDtfsCounter, 5045 mSDsluCounter, 4611 mSDsCounter, 0 mSdLazyCounter, 930 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5045 SdHoareTripleChecker+Valid, 9222 SdHoareTripleChecker+Invalid, 932 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 930 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.8s IncrementalHoareTripleChecker+Time [2023-12-02 19:36:21,651 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5045 Valid, 9222 Invalid, 932 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 930 Invalid, 2 Unknown, 0 Unchecked, 9.8s Time] [2023-12-02 19:36:21,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5555 states. [2023-12-02 19:36:22,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5555 to 5555. [2023-12-02 19:36:22,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5555 states, 2425 states have (on average 1.2045360824742268) internal successors, (2921), 2585 states have internal predecessors, (2921), 2857 states have call successors, (2857), 264 states have call predecessors, (2857), 262 states have return successors, (2865), 2782 states have call predecessors, (2865), 2855 states have call successors, (2865) [2023-12-02 19:36:22,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5555 states to 5555 states and 8643 transitions. [2023-12-02 19:36:22,636 INFO L78 Accepts]: Start accepts. Automaton has 5555 states and 8643 transitions. Word has length 119 [2023-12-02 19:36:22,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:36:22,636 INFO L495 AbstractCegarLoop]: Abstraction has 5555 states and 8643 transitions. [2023-12-02 19:36:22,636 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2023-12-02 19:36:22,637 INFO L276 IsEmpty]: Start isEmpty. Operand 5555 states and 8643 transitions. [2023-12-02 19:36:22,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2023-12-02 19:36:22,638 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:36:22,638 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 4, 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] [2023-12-02 19:36:22,638 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-12-02 19:36:22,639 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ldv_linux_net_rtnetlink_past_rtnl_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2023-12-02 19:36:22,639 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:36:22,639 INFO L85 PathProgramCache]: Analyzing trace with hash 1732269888, now seen corresponding path program 1 times [2023-12-02 19:36:22,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:36:22,639 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [726053755] [2023-12-02 19:36:22,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:36:22,639 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:36:22,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:36:23,368 INFO L134 CoverageAnalysis]: Checked inductivity of 178 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 178 trivial. 0 not checked. [2023-12-02 19:36:23,368 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:36:23,368 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [726053755] [2023-12-02 19:36:23,368 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [726053755] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:36:23,368 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 19:36:23,368 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-02 19:36:23,369 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1658890427] [2023-12-02 19:36:23,369 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:36:23,369 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 19:36:23,369 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 19:36:23,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 19:36:23,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-02 19:36:23,370 INFO L87 Difference]: Start difference. First operand 5555 states and 8643 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, (25), 2 states have call predecessors, (25), 2 states have return successors, (23), 2 states have call predecessors, (23), 1 states have call successors, (23) [2023-12-02 19:36:28,184 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-02 19:36:30,193 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-02 19:36:32,197 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-02 19:36:35,128 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:36:38,636 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.77s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:36:41,032 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-02 19:36:43,038 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-02 19:36:44,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:36:44,061 INFO L93 Difference]: Finished difference Result 5575 states and 8665 transitions. [2023-12-02 19:36:44,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-02 19:36:44,061 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, (25), 2 states have call predecessors, (25), 2 states have return successors, (23), 2 states have call predecessors, (23), 1 states have call successors, (23) Word has length 142 [2023-12-02 19:36:44,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:36:44,077 INFO L225 Difference]: With dead ends: 5575 [2023-12-02 19:36:44,077 INFO L226 Difference]: Without dead ends: 5573 [2023-12-02 19:36:44,079 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 19:36:44,080 INFO L413 NwaCegarLoop]: 7886 mSDtfsCounter, 3625 mSDsluCounter, 12444 mSDsCounter, 0 mSdLazyCounter, 1899 mSolverCounterSat, 1 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3625 SdHoareTripleChecker+Valid, 20330 SdHoareTripleChecker+Invalid, 1905 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1899 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.6s IncrementalHoareTripleChecker+Time [2023-12-02 19:36:44,080 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3625 Valid, 20330 Invalid, 1905 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1899 Invalid, 5 Unknown, 0 Unchecked, 19.6s Time] [2023-12-02 19:36:44,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5573 states. [2023-12-02 19:36:45,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5573 to 5563. [2023-12-02 19:36:45,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5563 states, 2427 states have (on average 1.204367531932427) internal successors, (2923), 2586 states have internal predecessors, (2923), 2863 states have call successors, (2863), 265 states have call predecessors, (2863), 262 states have return successors, (2871), 2788 states have call predecessors, (2871), 2861 states have call successors, (2871) [2023-12-02 19:36:45,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5563 states to 5563 states and 8657 transitions. [2023-12-02 19:36:45,075 INFO L78 Accepts]: Start accepts. Automaton has 5563 states and 8657 transitions. Word has length 142 [2023-12-02 19:36:45,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:36:45,076 INFO L495 AbstractCegarLoop]: Abstraction has 5563 states and 8657 transitions. [2023-12-02 19:36:45,076 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, (25), 2 states have call predecessors, (25), 2 states have return successors, (23), 2 states have call predecessors, (23), 1 states have call successors, (23) [2023-12-02 19:36:45,076 INFO L276 IsEmpty]: Start isEmpty. Operand 5563 states and 8657 transitions. [2023-12-02 19:36:45,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2023-12-02 19:36:45,078 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:36:45,078 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 19:36:45,078 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-12-02 19:36:45,078 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ldv_linux_net_rtnetlink_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2023-12-02 19:36:45,078 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:36:45,078 INFO L85 PathProgramCache]: Analyzing trace with hash 1464495370, now seen corresponding path program 1 times [2023-12-02 19:36:45,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:36:45,079 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1049065632] [2023-12-02 19:36:45,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:36:45,079 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:36:45,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:36:45,688 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-12-02 19:36:45,688 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:36:45,688 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1049065632] [2023-12-02 19:36:45,688 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1049065632] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:36:45,688 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 19:36:45,689 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-02 19:36:45,689 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1720803151] [2023-12-02 19:36:45,689 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:36:45,689 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 19:36:45,689 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 19:36:45,690 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 19:36:45,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-02 19:36:45,690 INFO L87 Difference]: Start difference. First operand 5563 states and 8657 transitions. Second operand has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2023-12-02 19:36:48,691 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:36:52,271 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-02 19:36:54,281 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-02 19:36:56,898 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:36:58,907 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:37:03,555 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:37:05,745 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-02 19:37:07,754 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-02 19:37:09,761 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-02 19:37:10,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:37:10,909 INFO L93 Difference]: Finished difference Result 5573 states and 8663 transitions. [2023-12-02 19:37:10,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 19:37:10,909 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 124 [2023-12-02 19:37:10,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:37:10,925 INFO L225 Difference]: With dead ends: 5573 [2023-12-02 19:37:10,925 INFO L226 Difference]: Without dead ends: 5571 [2023-12-02 19:37:10,927 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-02 19:37:10,928 INFO L413 NwaCegarLoop]: 4656 mSDtfsCounter, 4990 mSDsluCounter, 8025 mSDsCounter, 0 mSdLazyCounter, 1199 mSolverCounterSat, 1 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4990 SdHoareTripleChecker+Valid, 12681 SdHoareTripleChecker+Invalid, 1209 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1199 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 24.1s IncrementalHoareTripleChecker+Time [2023-12-02 19:37:10,928 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4990 Valid, 12681 Invalid, 1209 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1199 Invalid, 9 Unknown, 0 Unchecked, 24.1s Time] [2023-12-02 19:37:10,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5571 states. [2023-12-02 19:37:11,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5571 to 5561. [2023-12-02 19:37:11,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5561 states, 2426 states have (on average 1.2040395713107996) internal successors, (2921), 2584 states have internal predecessors, (2921), 2863 states have call successors, (2863), 265 states have call predecessors, (2863), 262 states have return successors, (2871), 2788 states have call predecessors, (2871), 2861 states have call successors, (2871) [2023-12-02 19:37:11,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5561 states to 5561 states and 8655 transitions. [2023-12-02 19:37:11,944 INFO L78 Accepts]: Start accepts. Automaton has 5561 states and 8655 transitions. Word has length 124 [2023-12-02 19:37:11,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:37:11,945 INFO L495 AbstractCegarLoop]: Abstraction has 5561 states and 8655 transitions. [2023-12-02 19:37:11,945 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2023-12-02 19:37:11,945 INFO L276 IsEmpty]: Start isEmpty. Operand 5561 states and 8655 transitions. [2023-12-02 19:37:11,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2023-12-02 19:37:11,947 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:37:11,948 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 19:37:11,948 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-12-02 19:37:11,948 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ldv_linux_net_sock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2023-12-02 19:37:11,948 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:37:11,948 INFO L85 PathProgramCache]: Analyzing trace with hash -551635120, now seen corresponding path program 1 times [2023-12-02 19:37:11,948 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:37:11,949 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [250450548] [2023-12-02 19:37:11,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:37:11,949 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:37:12,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:37:12,568 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-12-02 19:37:12,569 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:37:12,569 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [250450548] [2023-12-02 19:37:12,569 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [250450548] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:37:12,569 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 19:37:12,569 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-02 19:37:12,569 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [692276646] [2023-12-02 19:37:12,569 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:37:12,570 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 19:37:12,570 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 19:37:12,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 19:37:12,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-02 19:37:12,571 INFO L87 Difference]: Start difference. First operand 5561 states and 8655 transitions. Second operand has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2023-12-02 19:37:15,774 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:37:16,944 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:37:19,881 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-02 19:37:21,885 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-02 19:37:23,683 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:37:25,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:37:25,638 INFO L93 Difference]: Finished difference Result 5561 states and 8655 transitions. [2023-12-02 19:37:25,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 19:37:25,638 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 129 [2023-12-02 19:37:25,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:37:25,656 INFO L225 Difference]: With dead ends: 5561 [2023-12-02 19:37:25,656 INFO L226 Difference]: Without dead ends: 5559 [2023-12-02 19:37:25,659 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-02 19:37:25,659 INFO L413 NwaCegarLoop]: 4607 mSDtfsCounter, 5039 mSDsluCounter, 4607 mSDsCounter, 0 mSdLazyCounter, 929 mSolverCounterSat, 0 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5039 SdHoareTripleChecker+Valid, 9214 SdHoareTripleChecker+Invalid, 932 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 929 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.1s IncrementalHoareTripleChecker+Time [2023-12-02 19:37:25,660 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5039 Valid, 9214 Invalid, 932 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 929 Invalid, 3 Unknown, 0 Unchecked, 12.1s Time] [2023-12-02 19:37:25,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5559 states. [2023-12-02 19:37:26,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5559 to 5559. [2023-12-02 19:37:26,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5559 states, 2425 states have (on average 1.2037113402061856) internal successors, (2919), 2582 states have internal predecessors, (2919), 2863 states have call successors, (2863), 265 states have call predecessors, (2863), 262 states have return successors, (2871), 2788 states have call predecessors, (2871), 2861 states have call successors, (2871) [2023-12-02 19:37:26,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5559 states to 5559 states and 8653 transitions. [2023-12-02 19:37:26,716 INFO L78 Accepts]: Start accepts. Automaton has 5559 states and 8653 transitions. Word has length 129 [2023-12-02 19:37:26,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:37:26,717 INFO L495 AbstractCegarLoop]: Abstraction has 5559 states and 8653 transitions. [2023-12-02 19:37:26,717 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2023-12-02 19:37:26,717 INFO L276 IsEmpty]: Start isEmpty. Operand 5559 states and 8653 transitions. [2023-12-02 19:37:26,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2023-12-02 19:37:26,719 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:37:26,719 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 19:37:26,720 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-12-02 19:37:26,720 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2023-12-02 19:37:26,720 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:37:26,720 INFO L85 PathProgramCache]: Analyzing trace with hash 1176527985, now seen corresponding path program 1 times [2023-12-02 19:37:26,720 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:37:26,720 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [20000505] [2023-12-02 19:37:26,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:37:26,720 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:37:27,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:37:27,442 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-12-02 19:37:27,442 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:37:27,442 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [20000505] [2023-12-02 19:37:27,442 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [20000505] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:37:27,442 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 19:37:27,442 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-02 19:37:27,443 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [187744890] [2023-12-02 19:37:27,443 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:37:27,443 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 19:37:27,443 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 19:37:27,444 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 19:37:27,444 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-02 19:37:27,444 INFO L87 Difference]: Start difference. First operand 5559 states and 8653 transitions. Second operand has 4 states, 4 states have (on average 18.5) internal successors, (74), 4 states have internal predecessors, (74), 2 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2023-12-02 19:37:30,231 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:37:33,018 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-02 19:37:35,026 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-02 19:37:37,064 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:37:38,274 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:37:40,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:37:40,608 INFO L93 Difference]: Finished difference Result 5559 states and 8653 transitions. [2023-12-02 19:37:40,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 19:37:40,608 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.5) internal successors, (74), 4 states have internal predecessors, (74), 2 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 134 [2023-12-02 19:37:40,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:37:40,625 INFO L225 Difference]: With dead ends: 5559 [2023-12-02 19:37:40,625 INFO L226 Difference]: Without dead ends: 5557 [2023-12-02 19:37:40,628 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-02 19:37:40,628 INFO L413 NwaCegarLoop]: 4605 mSDtfsCounter, 5036 mSDsluCounter, 4605 mSDsCounter, 0 mSdLazyCounter, 929 mSolverCounterSat, 0 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5036 SdHoareTripleChecker+Valid, 9210 SdHoareTripleChecker+Invalid, 932 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 929 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.1s IncrementalHoareTripleChecker+Time [2023-12-02 19:37:40,628 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5036 Valid, 9210 Invalid, 932 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 929 Invalid, 3 Unknown, 0 Unchecked, 12.1s Time] [2023-12-02 19:37:40,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5557 states. [2023-12-02 19:37:41,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5557 to 5557. [2023-12-02 19:37:41,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5557 states, 2424 states have (on average 1.2033828382838283) internal successors, (2917), 2580 states have internal predecessors, (2917), 2863 states have call successors, (2863), 265 states have call predecessors, (2863), 262 states have return successors, (2871), 2788 states have call predecessors, (2871), 2861 states have call successors, (2871) [2023-12-02 19:37:41,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5557 states to 5557 states and 8651 transitions. [2023-12-02 19:37:41,674 INFO L78 Accepts]: Start accepts. Automaton has 5557 states and 8651 transitions. Word has length 134 [2023-12-02 19:37:41,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:37:41,674 INFO L495 AbstractCegarLoop]: Abstraction has 5557 states and 8651 transitions. [2023-12-02 19:37:41,675 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.5) internal successors, (74), 4 states have internal predecessors, (74), 2 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2023-12-02 19:37:41,675 INFO L276 IsEmpty]: Start isEmpty. Operand 5557 states and 8651 transitions. [2023-12-02 19:37:41,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2023-12-02 19:37:41,678 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:37:41,678 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 19:37:41,678 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-12-02 19:37:41,678 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2023-12-02 19:37:41,679 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:37:41,679 INFO L85 PathProgramCache]: Analyzing trace with hash 159531100, now seen corresponding path program 1 times [2023-12-02 19:37:41,679 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:37:41,679 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1565655631] [2023-12-02 19:37:41,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:37:41,679 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:37:42,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:37:42,369 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-12-02 19:37:42,369 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:37:42,369 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1565655631] [2023-12-02 19:37:42,369 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1565655631] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:37:42,369 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 19:37:42,369 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-02 19:37:42,369 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [101371942] [2023-12-02 19:37:42,369 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:37:42,370 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 19:37:42,370 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 19:37:42,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 19:37:42,371 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-02 19:37:42,371 INFO L87 Difference]: Start difference. First operand 5557 states and 8651 transitions. Second operand has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 2 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2023-12-02 19:37:44,391 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:37:47,711 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-02 19:37:49,722 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-02 19:37:52,401 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:37:54,406 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:37:55,692 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:37:56,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:37:56,744 INFO L93 Difference]: Finished difference Result 5557 states and 8651 transitions. [2023-12-02 19:37:56,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 19:37:56,744 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 2 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 139 [2023-12-02 19:37:56,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:37:56,762 INFO L225 Difference]: With dead ends: 5557 [2023-12-02 19:37:56,762 INFO L226 Difference]: Without dead ends: 5555 [2023-12-02 19:37:56,765 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-02 19:37:56,765 INFO L413 NwaCegarLoop]: 4603 mSDtfsCounter, 5033 mSDsluCounter, 4603 mSDsCounter, 0 mSdLazyCounter, 928 mSolverCounterSat, 0 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5033 SdHoareTripleChecker+Valid, 9206 SdHoareTripleChecker+Invalid, 932 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 928 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.2s IncrementalHoareTripleChecker+Time [2023-12-02 19:37:56,765 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5033 Valid, 9206 Invalid, 932 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 928 Invalid, 4 Unknown, 0 Unchecked, 13.2s Time] [2023-12-02 19:37:56,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5555 states. [2023-12-02 19:37:57,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5555 to 5555. [2023-12-02 19:37:57,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5555 states, 2423 states have (on average 1.2030540652084194) internal successors, (2915), 2578 states have internal predecessors, (2915), 2863 states have call successors, (2863), 265 states have call predecessors, (2863), 262 states have return successors, (2871), 2788 states have call predecessors, (2871), 2861 states have call successors, (2871) [2023-12-02 19:37:57,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5555 states to 5555 states and 8649 transitions. [2023-12-02 19:37:57,885 INFO L78 Accepts]: Start accepts. Automaton has 5555 states and 8649 transitions. Word has length 139 [2023-12-02 19:37:57,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:37:57,885 INFO L495 AbstractCegarLoop]: Abstraction has 5555 states and 8649 transitions. [2023-12-02 19:37:57,885 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 2 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2023-12-02 19:37:57,885 INFO L276 IsEmpty]: Start isEmpty. Operand 5555 states and 8649 transitions. [2023-12-02 19:37:57,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2023-12-02 19:37:57,887 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:37:57,888 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 19:37:57,888 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2023-12-02 19:37:57,888 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2023-12-02 19:37:57,888 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:37:57,888 INFO L85 PathProgramCache]: Analyzing trace with hash 2056231844, now seen corresponding path program 1 times [2023-12-02 19:37:57,888 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:37:57,888 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2034272699] [2023-12-02 19:37:57,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:37:57,889 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:37:58,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:37:59,859 INFO L134 CoverageAnalysis]: Checked inductivity of 257 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 256 trivial. 0 not checked. [2023-12-02 19:37:59,860 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:37:59,860 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2034272699] [2023-12-02 19:37:59,860 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2034272699] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 19:37:59,860 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [74779855] [2023-12-02 19:37:59,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:37:59,860 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 19:37:59,861 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15db0991-aa30-49da-887f-d430cf43872e/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 19:37:59,862 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15db0991-aa30-49da-887f-d430cf43872e/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 19:37:59,870 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15db0991-aa30-49da-887f-d430cf43872e/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-02 19:38:01,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:38:01,531 INFO L262 TraceCheckSpWp]: Trace formula consists of 5119 conjuncts, 36 conjunts are in the unsatisfiable core [2023-12-02 19:38:01,539 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 19:38:01,747 INFO L134 CoverageAnalysis]: Checked inductivity of 257 backedges. 92 proven. 0 refuted. 0 times theorem prover too weak. 165 trivial. 0 not checked. [2023-12-02 19:38:01,748 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 19:38:01,748 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [74779855] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:38:01,748 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-02 19:38:01,749 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [8] total 18 [2023-12-02 19:38:01,749 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1855086595] [2023-12-02 19:38:01,749 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:38:01,750 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-02 19:38:01,750 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 19:38:01,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-02 19:38:01,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=271, Unknown=0, NotChecked=0, Total=306 [2023-12-02 19:38:01,751 INFO L87 Difference]: Start difference. First operand 5555 states and 8649 transitions. Second operand has 12 states, 9 states have (on average 6.888888888888889) internal successors, (62), 11 states have internal predecessors, (62), 7 states have call successors, (31), 2 states have call predecessors, (31), 4 states have return successors, (27), 7 states have call predecessors, (27), 7 states have call successors, (27) [2023-12-02 19:38:10,061 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-02 19:38:12,066 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-02 19:38:14,072 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-02 19:38:15,920 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.85s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-02 19:38:17,931 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-02 19:38:19,937 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-02 19:38:21,947 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-02 19:38:23,955 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-02 19:38:25,965 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-02 19:38:27,969 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-02 19:38:29,977 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-02 19:38:33,678 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:38:35,943 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:38:37,692 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.75s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:38:39,337 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.64s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:38:41,473 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:38:43,481 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:38:45,487 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:38:46,757 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:38:48,210 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:38:54,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:38:54,249 INFO L93 Difference]: Finished difference Result 11798 states and 18430 transitions. [2023-12-02 19:38:54,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-12-02 19:38:54,250 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 9 states have (on average 6.888888888888889) internal successors, (62), 11 states have internal predecessors, (62), 7 states have call successors, (31), 2 states have call predecessors, (31), 4 states have return successors, (27), 7 states have call predecessors, (27), 7 states have call successors, (27) Word has length 170 [2023-12-02 19:38:54,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:38:54,275 INFO L225 Difference]: With dead ends: 11798 [2023-12-02 19:38:54,275 INFO L226 Difference]: Without dead ends: 6260 [2023-12-02 19:38:54,305 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 190 GetRequests, 165 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=87, Invalid=615, Unknown=0, NotChecked=0, Total=702 [2023-12-02 19:38:54,305 INFO L413 NwaCegarLoop]: 4699 mSDtfsCounter, 533 mSDsluCounter, 46775 mSDsCounter, 0 mSdLazyCounter, 5736 mSolverCounterSat, 75 mSolverCounterUnsat, 15 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 50.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 828 SdHoareTripleChecker+Valid, 51474 SdHoareTripleChecker+Invalid, 5826 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 5736 IncrementalHoareTripleChecker+Invalid, 15 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 50.9s IncrementalHoareTripleChecker+Time [2023-12-02 19:38:54,305 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [828 Valid, 51474 Invalid, 5826 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [75 Valid, 5736 Invalid, 15 Unknown, 0 Unchecked, 50.9s Time] [2023-12-02 19:38:54,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6260 states. [2023-12-02 19:38:55,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6260 to 5567. [2023-12-02 19:38:55,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5567 states, 2431 states have (on average 1.202385849444673) internal successors, (2923), 2586 states have internal predecessors, (2923), 2867 states have call successors, (2867), 265 states have call predecessors, (2867), 262 states have return successors, (2875), 2792 states have call predecessors, (2875), 2865 states have call successors, (2875) [2023-12-02 19:38:55,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5567 states to 5567 states and 8665 transitions. [2023-12-02 19:38:55,482 INFO L78 Accepts]: Start accepts. Automaton has 5567 states and 8665 transitions. Word has length 170 [2023-12-02 19:38:55,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:38:55,482 INFO L495 AbstractCegarLoop]: Abstraction has 5567 states and 8665 transitions. [2023-12-02 19:38:55,482 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 9 states have (on average 6.888888888888889) internal successors, (62), 11 states have internal predecessors, (62), 7 states have call successors, (31), 2 states have call predecessors, (31), 4 states have return successors, (27), 7 states have call predecessors, (27), 7 states have call successors, (27) [2023-12-02 19:38:55,482 INFO L276 IsEmpty]: Start isEmpty. Operand 5567 states and 8665 transitions. [2023-12-02 19:38:55,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2023-12-02 19:38:55,483 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:38:55,484 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 19:38:55,500 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15db0991-aa30-49da-887f-d430cf43872e/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-12-02 19:38:55,684 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15db0991-aa30-49da-887f-d430cf43872e/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 19:38:55,684 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ldv_linux_usb_urb_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2023-12-02 19:38:55,684 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:38:55,685 INFO L85 PathProgramCache]: Analyzing trace with hash 57759559, now seen corresponding path program 1 times [2023-12-02 19:38:55,685 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:38:55,685 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1492918686] [2023-12-02 19:38:55,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:38:55,685 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:38:55,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:38:56,313 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-12-02 19:38:56,313 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:38:56,313 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1492918686] [2023-12-02 19:38:56,313 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1492918686] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:38:56,313 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 19:38:56,313 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-02 19:38:56,313 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1801170349] [2023-12-02 19:38:56,314 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:38:56,314 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 19:38:56,314 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 19:38:56,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 19:38:56,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-02 19:38:56,315 INFO L87 Difference]: Start difference. First operand 5567 states and 8665 transitions. Second operand has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2023-12-02 19:39:00,125 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-02 19:39:02,132 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-02 19:39:05,094 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:39:07,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:39:07,786 INFO L93 Difference]: Finished difference Result 5567 states and 8665 transitions. [2023-12-02 19:39:07,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 19:39:07,787 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 144 [2023-12-02 19:39:07,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:39:07,804 INFO L225 Difference]: With dead ends: 5567 [2023-12-02 19:39:07,804 INFO L226 Difference]: Without dead ends: 5413 [2023-12-02 19:39:07,806 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-02 19:39:07,807 INFO L413 NwaCegarLoop]: 4602 mSDtfsCounter, 5029 mSDsluCounter, 4602 mSDsCounter, 0 mSdLazyCounter, 928 mSolverCounterSat, 0 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5029 SdHoareTripleChecker+Valid, 9204 SdHoareTripleChecker+Invalid, 931 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 928 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.3s IncrementalHoareTripleChecker+Time [2023-12-02 19:39:07,807 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5029 Valid, 9204 Invalid, 931 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 928 Invalid, 3 Unknown, 0 Unchecked, 10.3s Time] [2023-12-02 19:39:07,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5413 states. [2023-12-02 19:39:08,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5413 to 5413. [2023-12-02 19:39:08,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5413 states, 2352 states have (on average 1.2070578231292517) internal successors, (2839), 2504 states have internal predecessors, (2839), 2812 states have call successors, (2812), 245 states have call predecessors, (2812), 243 states have return successors, (2822), 2739 states have call predecessors, (2822), 2812 states have call successors, (2822) [2023-12-02 19:39:08,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5413 states to 5413 states and 8473 transitions. [2023-12-02 19:39:08,955 INFO L78 Accepts]: Start accepts. Automaton has 5413 states and 8473 transitions. Word has length 144 [2023-12-02 19:39:08,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:39:08,955 INFO L495 AbstractCegarLoop]: Abstraction has 5413 states and 8473 transitions. [2023-12-02 19:39:08,955 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2023-12-02 19:39:08,955 INFO L276 IsEmpty]: Start isEmpty. Operand 5413 states and 8473 transitions. [2023-12-02 19:39:08,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 289 [2023-12-02 19:39:08,957 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:39:08,957 INFO L195 NwaCegarLoop]: trace histogram [26, 26, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 19:39:08,957 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2023-12-02 19:39:08,957 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2023-12-02 19:39:08,958 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:39:08,958 INFO L85 PathProgramCache]: Analyzing trace with hash -468425114, now seen corresponding path program 1 times [2023-12-02 19:39:08,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:39:08,958 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1843776305] [2023-12-02 19:39:08,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:39:08,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:39:09,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:39:10,693 INFO L134 CoverageAnalysis]: Checked inductivity of 1599 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1599 trivial. 0 not checked. [2023-12-02 19:39:10,693 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:39:10,694 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1843776305] [2023-12-02 19:39:10,694 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1843776305] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:39:10,694 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 19:39:10,694 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-02 19:39:10,694 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1187617368] [2023-12-02 19:39:10,694 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:39:10,695 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-02 19:39:10,695 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 19:39:10,695 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-02 19:39:10,695 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-02 19:39:10,696 INFO L87 Difference]: Start difference. First operand 5413 states and 8473 transitions. Second operand has 6 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 2 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (30), 3 states have call predecessors, (30), 2 states have call successors, (30) [2023-12-02 19:39:17,311 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-02 19:39:19,316 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-02 19:39:21,325 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-02 19:39:23,333 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-02 19:39:26,684 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:39:28,147 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.46s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:39:30,373 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:39:32,853 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.57s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:39:37,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:39:37,438 INFO L93 Difference]: Finished difference Result 5653 states and 8703 transitions. [2023-12-02 19:39:37,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-02 19:39:37,439 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 2 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (30), 3 states have call predecessors, (30), 2 states have call successors, (30) Word has length 288 [2023-12-02 19:39:37,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:39:37,455 INFO L225 Difference]: With dead ends: 5653 [2023-12-02 19:39:37,455 INFO L226 Difference]: Without dead ends: 5651 [2023-12-02 19:39:37,458 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-12-02 19:39:37,458 INFO L413 NwaCegarLoop]: 4437 mSDtfsCounter, 4609 mSDsluCounter, 10515 mSDsCounter, 0 mSdLazyCounter, 4875 mSolverCounterSat, 2 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 24.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4610 SdHoareTripleChecker+Valid, 14952 SdHoareTripleChecker+Invalid, 4882 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4875 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 25.3s IncrementalHoareTripleChecker+Time [2023-12-02 19:39:37,458 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4610 Valid, 14952 Invalid, 4882 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 4875 Invalid, 5 Unknown, 0 Unchecked, 25.3s Time] [2023-12-02 19:39:37,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5651 states. [2023-12-02 19:39:38,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5651 to 5645. [2023-12-02 19:39:38,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5645 states, 2476 states have (on average 1.201534733441034) internal successors, (2975), 2628 states have internal predecessors, (2975), 2856 states have call successors, (2856), 309 states have call predecessors, (2856), 307 states have return successors, (2866), 2783 states have call predecessors, (2866), 2856 states have call successors, (2866) [2023-12-02 19:39:38,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5645 states to 5645 states and 8697 transitions. [2023-12-02 19:39:38,647 INFO L78 Accepts]: Start accepts. Automaton has 5645 states and 8697 transitions. Word has length 288 [2023-12-02 19:39:38,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:39:38,648 INFO L495 AbstractCegarLoop]: Abstraction has 5645 states and 8697 transitions. [2023-12-02 19:39:38,648 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 2 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (30), 3 states have call predecessors, (30), 2 states have call successors, (30) [2023-12-02 19:39:38,648 INFO L276 IsEmpty]: Start isEmpty. Operand 5645 states and 8697 transitions. [2023-12-02 19:39:38,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 294 [2023-12-02 19:39:38,650 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:39:38,651 INFO L195 NwaCegarLoop]: trace histogram [26, 26, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 19:39:38,651 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2023-12-02 19:39:38,651 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ldv_check_alloc_flagsErr1ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2023-12-02 19:39:38,651 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:39:38,651 INFO L85 PathProgramCache]: Analyzing trace with hash 1521577725, now seen corresponding path program 1 times [2023-12-02 19:39:38,651 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:39:38,651 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [18360642] [2023-12-02 19:39:38,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:39:38,652 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:39:39,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:39:39,376 INFO L134 CoverageAnalysis]: Checked inductivity of 1599 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1599 trivial. 0 not checked. [2023-12-02 19:39:39,376 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:39:39,376 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [18360642] [2023-12-02 19:39:39,376 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [18360642] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:39:39,376 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 19:39:39,377 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 19:39:39,377 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [752669242] [2023-12-02 19:39:39,377 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:39:39,377 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 19:39:39,377 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 19:39:39,378 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 19:39:39,378 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 19:39:39,378 INFO L87 Difference]: Start difference. First operand 5645 states and 8697 transitions. Second operand has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (33), 2 states have call predecessors, (33), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2023-12-02 19:39:41,005 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:39:43,688 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-02 19:39:46,920 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:39:47,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:39:47,905 INFO L93 Difference]: Finished difference Result 11264 states and 17400 transitions. [2023-12-02 19:39:47,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 19:39:47,906 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (33), 2 states have call predecessors, (33), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) Word has length 293 [2023-12-02 19:39:47,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:39:47,928 INFO L225 Difference]: With dead ends: 11264 [2023-12-02 19:39:47,928 INFO L226 Difference]: Without dead ends: 5635 [2023-12-02 19:39:47,943 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 19:39:47,943 INFO L413 NwaCegarLoop]: 4432 mSDtfsCounter, 4802 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 439 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4802 SdHoareTripleChecker+Valid, 4432 SdHoareTripleChecker+Invalid, 441 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 439 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.3s IncrementalHoareTripleChecker+Time [2023-12-02 19:39:47,943 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4802 Valid, 4432 Invalid, 441 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 439 Invalid, 2 Unknown, 0 Unchecked, 7.3s Time] [2023-12-02 19:39:47,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5635 states. [2023-12-02 19:39:49,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5635 to 5635. [2023-12-02 19:39:49,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5635 states, 2467 states have (on average 1.1990271584920957) internal successors, (2958), 2618 states have internal predecessors, (2958), 2856 states have call successors, (2856), 309 states have call predecessors, (2856), 307 states have return successors, (2866), 2783 states have call predecessors, (2866), 2856 states have call successors, (2866) [2023-12-02 19:39:49,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5635 states to 5635 states and 8680 transitions. [2023-12-02 19:39:49,166 INFO L78 Accepts]: Start accepts. Automaton has 5635 states and 8680 transitions. Word has length 293 [2023-12-02 19:39:49,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:39:49,166 INFO L495 AbstractCegarLoop]: Abstraction has 5635 states and 8680 transitions. [2023-12-02 19:39:49,166 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (33), 2 states have call predecessors, (33), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2023-12-02 19:39:49,166 INFO L276 IsEmpty]: Start isEmpty. Operand 5635 states and 8680 transitions. [2023-12-02 19:39:49,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 413 [2023-12-02 19:39:49,175 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:39:49,176 INFO L195 NwaCegarLoop]: trace histogram [29, 29, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 9, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 19:39:49,176 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2023-12-02 19:39:49,176 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2023-12-02 19:39:49,176 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:39:49,176 INFO L85 PathProgramCache]: Analyzing trace with hash -1969900227, now seen corresponding path program 1 times [2023-12-02 19:39:49,176 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:39:49,177 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [237784292] [2023-12-02 19:39:49,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:39:49,177 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:39:49,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:39:49,900 INFO L134 CoverageAnalysis]: Checked inductivity of 2016 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2016 trivial. 0 not checked. [2023-12-02 19:39:49,900 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:39:49,900 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [237784292] [2023-12-02 19:39:49,900 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [237784292] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:39:49,901 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 19:39:49,901 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 19:39:49,901 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1752338461] [2023-12-02 19:39:49,901 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:39:49,902 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 19:39:49,902 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 19:39:49,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 19:39:49,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 19:39:49,904 INFO L87 Difference]: Start difference. First operand 5635 states and 8680 transitions. Second operand has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 2 states have call successors, (57), 2 states have call predecessors, (57), 1 states have return successors, (52), 2 states have call predecessors, (52), 2 states have call successors, (52) [2023-12-02 19:39:54,033 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-02 19:39:56,041 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-02 19:39:58,521 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:40:00,526 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:40:02,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:40:02,803 INFO L93 Difference]: Finished difference Result 11290 states and 17409 transitions. [2023-12-02 19:40:02,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 19:40:02,804 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 2 states have call successors, (57), 2 states have call predecessors, (57), 1 states have return successors, (52), 2 states have call predecessors, (52), 2 states have call successors, (52) Word has length 412 [2023-12-02 19:40:02,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:40:02,832 INFO L225 Difference]: With dead ends: 11290 [2023-12-02 19:40:02,833 INFO L226 Difference]: Without dead ends: 5671 [2023-12-02 19:40:02,856 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 19:40:02,857 INFO L413 NwaCegarLoop]: 4430 mSDtfsCounter, 11 mSDsluCounter, 4427 mSDsCounter, 0 mSdLazyCounter, 886 mSolverCounterSat, 0 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 8857 SdHoareTripleChecker+Invalid, 890 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 886 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.6s IncrementalHoareTripleChecker+Time [2023-12-02 19:40:02,857 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 8857 Invalid, 890 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 886 Invalid, 4 Unknown, 0 Unchecked, 11.6s Time] [2023-12-02 19:40:02,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5671 states. [2023-12-02 19:40:04,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5671 to 5637. [2023-12-02 19:40:04,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5637 states, 2469 states have (on average 1.1988659376265696) internal successors, (2960), 2620 states have internal predecessors, (2960), 2856 states have call successors, (2856), 309 states have call predecessors, (2856), 307 states have return successors, (2866), 2783 states have call predecessors, (2866), 2856 states have call successors, (2866) [2023-12-02 19:40:04,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5637 states to 5637 states and 8682 transitions. [2023-12-02 19:40:04,169 INFO L78 Accepts]: Start accepts. Automaton has 5637 states and 8682 transitions. Word has length 412 [2023-12-02 19:40:04,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:40:04,169 INFO L495 AbstractCegarLoop]: Abstraction has 5637 states and 8682 transitions. [2023-12-02 19:40:04,169 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 2 states have call successors, (57), 2 states have call predecessors, (57), 1 states have return successors, (52), 2 states have call predecessors, (52), 2 states have call successors, (52) [2023-12-02 19:40:04,169 INFO L276 IsEmpty]: Start isEmpty. Operand 5637 states and 8682 transitions. [2023-12-02 19:40:04,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 420 [2023-12-02 19:40:04,179 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:40:04,179 INFO L195 NwaCegarLoop]: trace histogram [29, 29, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 9, 5, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 19:40:04,179 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2023-12-02 19:40:04,180 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2023-12-02 19:40:04,180 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:40:04,180 INFO L85 PathProgramCache]: Analyzing trace with hash -968550482, now seen corresponding path program 1 times [2023-12-02 19:40:04,180 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:40:04,180 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [451474732] [2023-12-02 19:40:04,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:40:04,180 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:40:04,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:40:04,866 INFO L134 CoverageAnalysis]: Checked inductivity of 2018 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2018 trivial. 0 not checked. [2023-12-02 19:40:04,866 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:40:04,866 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [451474732] [2023-12-02 19:40:04,867 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [451474732] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:40:04,867 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 19:40:04,867 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-02 19:40:04,867 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1607278621] [2023-12-02 19:40:04,867 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:40:04,867 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 19:40:04,868 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 19:40:04,868 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 19:40:04,868 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-02 19:40:04,868 INFO L87 Difference]: Start difference. First operand 5637 states and 8682 transitions. Second operand has 4 states, 4 states have (on average 29.25) internal successors, (117), 4 states have internal predecessors, (117), 2 states have call successors, (58), 2 states have call predecessors, (58), 1 states have return successors, (53), 2 states have call predecessors, (53), 2 states have call successors, (53) [2023-12-02 19:40:08,020 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:40:10,375 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-02 19:40:12,382 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-02 19:40:14,389 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-02 19:40:16,416 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:40:18,489 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:40:20,784 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:40:22,502 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.72s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:40:24,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:40:24,283 INFO L93 Difference]: Finished difference Result 11266 states and 17371 transitions. [2023-12-02 19:40:24,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 19:40:24,284 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 29.25) internal successors, (117), 4 states have internal predecessors, (117), 2 states have call successors, (58), 2 states have call predecessors, (58), 1 states have return successors, (53), 2 states have call predecessors, (53), 2 states have call successors, (53) Word has length 419 [2023-12-02 19:40:24,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:40:24,317 INFO L225 Difference]: With dead ends: 11266 [2023-12-02 19:40:24,317 INFO L226 Difference]: Without dead ends: 5645 [2023-12-02 19:40:24,340 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-02 19:40:24,341 INFO L413 NwaCegarLoop]: 4431 mSDtfsCounter, 5 mSDsluCounter, 8850 mSDsCounter, 0 mSdLazyCounter, 1332 mSolverCounterSat, 2 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 13281 SdHoareTripleChecker+Invalid, 1337 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1332 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.1s IncrementalHoareTripleChecker+Time [2023-12-02 19:40:24,341 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 13281 Invalid, 1337 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1332 Invalid, 3 Unknown, 0 Unchecked, 18.1s Time] [2023-12-02 19:40:24,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5645 states. [2023-12-02 19:40:25,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5645 to 5643. [2023-12-02 19:40:25,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5643 states, 2474 states have (on average 1.198464025869038) internal successors, (2965), 2626 states have internal predecessors, (2965), 2856 states have call successors, (2856), 309 states have call predecessors, (2856), 308 states have return successors, (2867), 2783 states have call predecessors, (2867), 2856 states have call successors, (2867) [2023-12-02 19:40:25,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5643 states to 5643 states and 8688 transitions. [2023-12-02 19:40:25,649 INFO L78 Accepts]: Start accepts. Automaton has 5643 states and 8688 transitions. Word has length 419 [2023-12-02 19:40:25,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:40:25,650 INFO L495 AbstractCegarLoop]: Abstraction has 5643 states and 8688 transitions. [2023-12-02 19:40:25,650 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 29.25) internal successors, (117), 4 states have internal predecessors, (117), 2 states have call successors, (58), 2 states have call predecessors, (58), 1 states have return successors, (53), 2 states have call predecessors, (53), 2 states have call successors, (53) [2023-12-02 19:40:25,650 INFO L276 IsEmpty]: Start isEmpty. Operand 5643 states and 8688 transitions. [2023-12-02 19:40:25,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 419 [2023-12-02 19:40:25,658 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:40:25,659 INFO L195 NwaCegarLoop]: trace histogram [28, 28, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 9, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 19:40:25,659 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2023-12-02 19:40:25,659 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ldv_assert_linux_net_rtnetlink__double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2023-12-02 19:40:25,659 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:40:25,660 INFO L85 PathProgramCache]: Analyzing trace with hash 396290777, now seen corresponding path program 1 times [2023-12-02 19:40:25,660 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:40:25,660 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1388909960] [2023-12-02 19:40:25,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:40:25,660 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:40:27,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:40:30,342 INFO L134 CoverageAnalysis]: Checked inductivity of 1815 backedges. 10 proven. 116 refuted. 0 times theorem prover too weak. 1689 trivial. 0 not checked. [2023-12-02 19:40:30,342 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:40:30,342 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1388909960] [2023-12-02 19:40:30,343 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1388909960] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 19:40:30,343 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [217036584] [2023-12-02 19:40:30,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:40:30,343 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 19:40:30,343 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15db0991-aa30-49da-887f-d430cf43872e/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 19:40:30,344 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15db0991-aa30-49da-887f-d430cf43872e/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 19:40:30,345 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15db0991-aa30-49da-887f-d430cf43872e/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-02 19:40:32,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:40:32,219 INFO L262 TraceCheckSpWp]: Trace formula consists of 6167 conjuncts, 21 conjunts are in the unsatisfiable core [2023-12-02 19:40:32,231 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 19:40:32,514 INFO L134 CoverageAnalysis]: Checked inductivity of 1815 backedges. 82 proven. 0 refuted. 0 times theorem prover too weak. 1733 trivial. 0 not checked. [2023-12-02 19:40:32,515 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 19:40:32,515 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [217036584] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:40:32,515 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-02 19:40:32,515 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [9] total 20 [2023-12-02 19:40:32,516 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [695995226] [2023-12-02 19:40:32,516 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:40:32,517 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-12-02 19:40:32,517 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 19:40:32,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-12-02 19:40:32,518 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=342, Unknown=0, NotChecked=0, Total=380 [2023-12-02 19:40:32,518 INFO L87 Difference]: Start difference. First operand 5643 states and 8688 transitions. Second operand has 15 states, 11 states have (on average 12.818181818181818) internal successors, (141), 12 states have internal predecessors, (141), 5 states have call successors, (55), 2 states have call predecessors, (55), 6 states have return successors, (51), 7 states have call predecessors, (51), 5 states have call successors, (51) [2023-12-02 19:40:42,423 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-02 19:40:44,432 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-02 19:40:46,441 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-02 19:40:48,448 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-02 19:40:50,455 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-02 19:40:52,459 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-02 19:40:54,467 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-02 19:40:56,472 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-02 19:40:58,478 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-02 19:41:00,484 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-02 19:41:02,493 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-02 19:41:03,759 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-02 19:41:05,768 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-02 19:41:07,771 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-02 19:41:11,298 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:41:13,093 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.79s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:41:15,097 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:41:16,612 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:41:18,143 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.53s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:41:19,568 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.42s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:41:21,675 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:41:24,489 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:41:26,578 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.80s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:41:28,550 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.97s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:41:30,465 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.91s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:41:35,057 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:41:39,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:41:39,970 INFO L93 Difference]: Finished difference Result 11296 states and 17396 transitions. [2023-12-02 19:41:39,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-12-02 19:41:39,971 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 11 states have (on average 12.818181818181818) internal successors, (141), 12 states have internal predecessors, (141), 5 states have call successors, (55), 2 states have call predecessors, (55), 6 states have return successors, (51), 7 states have call predecessors, (51), 5 states have call successors, (51) Word has length 418 [2023-12-02 19:41:39,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:41:39,993 INFO L225 Difference]: With dead ends: 11296 [2023-12-02 19:41:39,993 INFO L226 Difference]: Without dead ends: 5668 [2023-12-02 19:41:40,009 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 434 GetRequests, 408 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=72, Invalid=684, Unknown=0, NotChecked=0, Total=756 [2023-12-02 19:41:40,010 INFO L413 NwaCegarLoop]: 4404 mSDtfsCounter, 14 mSDsluCounter, 57130 mSDsCounter, 0 mSdLazyCounter, 6870 mSolverCounterSat, 3 mSolverCounterUnsat, 15 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 64.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 61534 SdHoareTripleChecker+Invalid, 6888 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 6870 IncrementalHoareTripleChecker+Invalid, 15 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 65.8s IncrementalHoareTripleChecker+Time [2023-12-02 19:41:40,010 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 61534 Invalid, 6888 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 6870 Invalid, 15 Unknown, 0 Unchecked, 65.8s Time] [2023-12-02 19:41:40,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5668 states. [2023-12-02 19:41:41,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5668 to 5654. [2023-12-02 19:41:41,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5654 states, 2480 states have (on average 1.197983870967742) internal successors, (2971), 2632 states have internal predecessors, (2971), 2860 states have call successors, (2860), 309 states have call predecessors, (2860), 309 states have return successors, (2876), 2788 states have call predecessors, (2876), 2860 states have call successors, (2876) [2023-12-02 19:41:41,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5654 states to 5654 states and 8707 transitions. [2023-12-02 19:41:41,393 INFO L78 Accepts]: Start accepts. Automaton has 5654 states and 8707 transitions. Word has length 418 [2023-12-02 19:41:41,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:41:41,393 INFO L495 AbstractCegarLoop]: Abstraction has 5654 states and 8707 transitions. [2023-12-02 19:41:41,394 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 11 states have (on average 12.818181818181818) internal successors, (141), 12 states have internal predecessors, (141), 5 states have call successors, (55), 2 states have call predecessors, (55), 6 states have return successors, (51), 7 states have call predecessors, (51), 5 states have call successors, (51) [2023-12-02 19:41:41,394 INFO L276 IsEmpty]: Start isEmpty. Operand 5654 states and 8707 transitions. [2023-12-02 19:41:41,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 422 [2023-12-02 19:41:41,406 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:41:41,407 INFO L195 NwaCegarLoop]: trace histogram [28, 28, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 9, 5, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 19:41:41,423 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15db0991-aa30-49da-887f-d430cf43872e/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-12-02 19:41:41,607 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15db0991-aa30-49da-887f-d430cf43872e/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 19:41:41,607 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2023-12-02 19:41:41,608 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:41:41,608 INFO L85 PathProgramCache]: Analyzing trace with hash 2059282873, now seen corresponding path program 1 times [2023-12-02 19:41:41,608 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:41:41,608 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [177373845] [2023-12-02 19:41:41,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:41:41,608 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:41:42,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:41:43,101 INFO L134 CoverageAnalysis]: Checked inductivity of 1826 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1826 trivial. 0 not checked. [2023-12-02 19:41:43,101 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:41:43,101 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [177373845] [2023-12-02 19:41:43,101 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [177373845] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:41:43,101 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 19:41:43,102 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-02 19:41:43,102 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [218068745] [2023-12-02 19:41:43,102 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:41:43,103 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-02 19:41:43,103 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 19:41:43,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-02 19:41:43,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-02 19:41:43,104 INFO L87 Difference]: Start difference. First operand 5654 states and 8707 transitions. Second operand has 6 states, 6 states have (on average 20.5) internal successors, (123), 5 states have internal predecessors, (123), 3 states have call successors, (60), 4 states have call predecessors, (60), 2 states have return successors, (57), 3 states have call predecessors, (57), 3 states have call successors, (57) [2023-12-02 19:41:50,327 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-02 19:41:52,336 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-02 19:41:54,341 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-02 19:41:56,347 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-02 19:41:58,355 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-02 19:42:02,225 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:42:03,836 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.61s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:42:10,416 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:42:11,482 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:42:12,577 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:42:13,852 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:42:21,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:42:21,106 INFO L93 Difference]: Finished difference Result 5674 states and 8726 transitions. [2023-12-02 19:42:21,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-02 19:42:21,106 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 20.5) internal successors, (123), 5 states have internal predecessors, (123), 3 states have call successors, (60), 4 states have call predecessors, (60), 2 states have return successors, (57), 3 states have call predecessors, (57), 3 states have call successors, (57) Word has length 421 [2023-12-02 19:42:21,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:42:21,133 INFO L225 Difference]: With dead ends: 5674 [2023-12-02 19:42:21,134 INFO L226 Difference]: Without dead ends: 5672 [2023-12-02 19:42:21,137 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-12-02 19:42:21,138 INFO L413 NwaCegarLoop]: 1307 mSDtfsCounter, 3101 mSDsluCounter, 3032 mSDsCounter, 0 mSdLazyCounter, 11441 mSolverCounterSat, 5288 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 34.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3365 SdHoareTripleChecker+Valid, 4339 SdHoareTripleChecker+Invalid, 16736 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 5288 IncrementalHoareTripleChecker+Valid, 11441 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 36.0s IncrementalHoareTripleChecker+Time [2023-12-02 19:42:21,138 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3365 Valid, 4339 Invalid, 16736 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [5288 Valid, 11441 Invalid, 7 Unknown, 0 Unchecked, 36.0s Time] [2023-12-02 19:42:21,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5672 states. [2023-12-02 19:42:22,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5672 to 5668. [2023-12-02 19:42:22,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5668 states, 2489 states have (on average 1.1956609079951788) internal successors, (2976), 2640 states have internal predecessors, (2976), 2860 states have call successors, (2860), 315 states have call predecessors, (2860), 315 states have return successors, (2876), 2788 states have call predecessors, (2876), 2860 states have call successors, (2876) [2023-12-02 19:42:22,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5668 states to 5668 states and 8712 transitions. [2023-12-02 19:42:22,664 INFO L78 Accepts]: Start accepts. Automaton has 5668 states and 8712 transitions. Word has length 421 [2023-12-02 19:42:22,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:42:22,664 INFO L495 AbstractCegarLoop]: Abstraction has 5668 states and 8712 transitions. [2023-12-02 19:42:22,665 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.5) internal successors, (123), 5 states have internal predecessors, (123), 3 states have call successors, (60), 4 states have call predecessors, (60), 2 states have return successors, (57), 3 states have call predecessors, (57), 3 states have call successors, (57) [2023-12-02 19:42:22,665 INFO L276 IsEmpty]: Start isEmpty. Operand 5668 states and 8712 transitions. [2023-12-02 19:42:22,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 448 [2023-12-02 19:42:22,674 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:42:22,675 INFO L195 NwaCegarLoop]: trace histogram [29, 29, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 9, 5, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 19:42:22,675 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2023-12-02 19:42:22,675 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2023-12-02 19:42:22,675 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:42:22,675 INFO L85 PathProgramCache]: Analyzing trace with hash -22192415, now seen corresponding path program 1 times [2023-12-02 19:42:22,676 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:42:22,676 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1148926015] [2023-12-02 19:42:22,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:42:22,676 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:42:23,116 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-02 19:42:23,117 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [78333695] [2023-12-02 19:42:23,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:42:23,117 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 19:42:23,117 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15db0991-aa30-49da-887f-d430cf43872e/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 19:42:23,118 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15db0991-aa30-49da-887f-d430cf43872e/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 19:42:23,119 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15db0991-aa30-49da-887f-d430cf43872e/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-12-02 19:42:25,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:42:25,343 INFO L262 TraceCheckSpWp]: Trace formula consists of 6601 conjuncts, 16 conjunts are in the unsatisfiable core [2023-12-02 19:42:25,356 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 19:42:25,428 INFO L134 CoverageAnalysis]: Checked inductivity of 1912 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1912 trivial. 0 not checked. [2023-12-02 19:42:25,428 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 19:42:25,429 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:42:25,429 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1148926015] [2023-12-02 19:42:25,429 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-02 19:42:25,429 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [78333695] [2023-12-02 19:42:25,429 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [78333695] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:42:25,429 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 19:42:25,430 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-02 19:42:25,430 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [124449751] [2023-12-02 19:42:25,430 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:42:25,431 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-02 19:42:25,431 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 19:42:25,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-02 19:42:25,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-02 19:42:25,432 INFO L87 Difference]: Start difference. First operand 5668 states and 8712 transitions. Second operand has 5 states, 5 states have (on average 26.6) internal successors, (133), 4 states have internal predecessors, (133), 2 states have call successors, (67), 3 states have call predecessors, (67), 2 states have return successors, (63), 2 states have call predecessors, (63), 2 states have call successors, (63) [2023-12-02 19:42:30,153 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-02 19:42:32,159 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-02 19:42:34,168 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-02 19:42:36,976 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:42:38,981 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:42:40,987 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:42:42,447 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:42:45,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:42:45,714 INFO L93 Difference]: Finished difference Result 5668 states and 8712 transitions. [2023-12-02 19:42:45,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-02 19:42:45,715 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.6) internal successors, (133), 4 states have internal predecessors, (133), 2 states have call successors, (67), 3 states have call predecessors, (67), 2 states have return successors, (63), 2 states have call predecessors, (63), 2 states have call successors, (63) Word has length 447 [2023-12-02 19:42:45,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:42:45,733 INFO L225 Difference]: With dead ends: 5668 [2023-12-02 19:42:45,734 INFO L226 Difference]: Without dead ends: 5666 [2023-12-02 19:42:45,736 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 448 GetRequests, 443 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-02 19:42:45,736 INFO L413 NwaCegarLoop]: 4482 mSDtfsCounter, 281 mSDsluCounter, 13214 mSDsCounter, 0 mSdLazyCounter, 1827 mSolverCounterSat, 0 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 282 SdHoareTripleChecker+Valid, 17696 SdHoareTripleChecker+Invalid, 1833 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1827 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.9s IncrementalHoareTripleChecker+Time [2023-12-02 19:42:45,736 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [282 Valid, 17696 Invalid, 1833 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1827 Invalid, 6 Unknown, 0 Unchecked, 18.9s Time] [2023-12-02 19:42:45,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5666 states. [2023-12-02 19:42:47,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5666 to 5666. [2023-12-02 19:42:47,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5666 states, 2488 states have (on average 1.1941318327974277) internal successors, (2971), 2638 states have internal predecessors, (2971), 2860 states have call successors, (2860), 315 states have call predecessors, (2860), 315 states have return successors, (2876), 2788 states have call predecessors, (2876), 2860 states have call successors, (2876) [2023-12-02 19:42:47,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5666 states to 5666 states and 8707 transitions. [2023-12-02 19:42:47,080 INFO L78 Accepts]: Start accepts. Automaton has 5666 states and 8707 transitions. Word has length 447 [2023-12-02 19:42:47,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:42:47,080 INFO L495 AbstractCegarLoop]: Abstraction has 5666 states and 8707 transitions. [2023-12-02 19:42:47,081 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.6) internal successors, (133), 4 states have internal predecessors, (133), 2 states have call successors, (67), 3 states have call predecessors, (67), 2 states have return successors, (63), 2 states have call predecessors, (63), 2 states have call successors, (63) [2023-12-02 19:42:47,081 INFO L276 IsEmpty]: Start isEmpty. Operand 5666 states and 8707 transitions. [2023-12-02 19:42:47,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 488 [2023-12-02 19:42:47,092 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:42:47,093 INFO L195 NwaCegarLoop]: trace histogram [28, 28, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 10, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 19:42:47,109 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15db0991-aa30-49da-887f-d430cf43872e/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-12-02 19:42:47,293 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15db0991-aa30-49da-887f-d430cf43872e/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 19:42:47,293 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ldv_assert_linux_net_rtnetlink__double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2023-12-02 19:42:47,294 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:42:47,294 INFO L85 PathProgramCache]: Analyzing trace with hash 172713730, now seen corresponding path program 1 times [2023-12-02 19:42:47,294 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:42:47,294 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [885450234] [2023-12-02 19:42:47,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:42:47,294 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:42:47,649 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-02 19:42:47,649 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [993358690] [2023-12-02 19:42:47,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:42:47,649 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 19:42:47,649 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15db0991-aa30-49da-887f-d430cf43872e/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 19:42:47,650 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15db0991-aa30-49da-887f-d430cf43872e/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 19:42:47,651 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15db0991-aa30-49da-887f-d430cf43872e/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-12-02 19:42:49,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:42:49,711 INFO L262 TraceCheckSpWp]: Trace formula consists of 6625 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 19:42:49,722 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 19:42:49,769 INFO L134 CoverageAnalysis]: Checked inductivity of 1862 backedges. 200 proven. 1 refuted. 0 times theorem prover too weak. 1661 trivial. 0 not checked. [2023-12-02 19:42:49,770 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 19:42:50,171 INFO L134 CoverageAnalysis]: Checked inductivity of 1862 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 1855 trivial. 0 not checked. [2023-12-02 19:42:50,172 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:42:50,172 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [885450234] [2023-12-02 19:42:50,172 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-02 19:42:50,172 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [993358690] [2023-12-02 19:42:50,172 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [993358690] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 19:42:50,172 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [302008032] [2023-12-02 19:42:50,201 INFO L159 IcfgInterpreter]: Started Sifa with 251 locations of interest [2023-12-02 19:42:50,202 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 19:42:50,206 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 19:42:50,211 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 19:42:50,211 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs