./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--ppp--ppp_generic.ko.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 63182f13 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c55d79ca-6b20-436e-bfb3-3d2a45e8c03b/bin/uautomizer-YU5uOKAj3y/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c55d79ca-6b20-436e-bfb3-3d2a45e8c03b/bin/uautomizer-YU5uOKAj3y/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c55d79ca-6b20-436e-bfb3-3d2a45e8c03b/bin/uautomizer-YU5uOKAj3y/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c55d79ca-6b20-436e-bfb3-3d2a45e8c03b/bin/uautomizer-YU5uOKAj3y/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c55d79ca-6b20-436e-bfb3-3d2a45e8c03b/bin/uautomizer-YU5uOKAj3y/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c55d79ca-6b20-436e-bfb3-3d2a45e8c03b/bin/uautomizer-YU5uOKAj3y --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash e8c1c69a9209f2e1e672b4301b3aeef542d8617026686dc57b4ac44c2de1cbfb --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-13 17:38:12,720 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-13 17:38:12,723 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-13 17:38:12,784 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-13 17:38:12,785 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-13 17:38:12,790 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-13 17:38:12,792 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-13 17:38:12,796 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-13 17:38:12,799 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-13 17:38:12,806 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-13 17:38:12,808 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-13 17:38:12,810 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-13 17:38:12,810 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-13 17:38:12,813 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-13 17:38:12,815 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-13 17:38:12,822 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-13 17:38:12,823 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-13 17:38:12,824 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-13 17:38:12,826 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-13 17:38:12,829 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-13 17:38:12,831 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-13 17:38:12,834 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-13 17:38:12,838 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-13 17:38:12,839 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-13 17:38:12,850 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-13 17:38:12,850 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-13 17:38:12,851 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-13 17:38:12,853 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-13 17:38:12,853 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-13 17:38:12,855 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-13 17:38:12,855 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-13 17:38:12,856 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-13 17:38:12,856 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-13 17:38:12,857 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-13 17:38:12,858 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-13 17:38:12,858 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-13 17:38:12,859 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-13 17:38:12,859 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-13 17:38:12,860 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-13 17:38:12,861 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-13 17:38:12,861 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-13 17:38:12,862 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c55d79ca-6b20-436e-bfb3-3d2a45e8c03b/bin/uautomizer-YU5uOKAj3y/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-13 17:38:12,888 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-13 17:38:12,888 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-13 17:38:12,889 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-13 17:38:12,889 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-13 17:38:12,890 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-13 17:38:12,890 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-13 17:38:12,890 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-13 17:38:12,891 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-13 17:38:12,891 INFO L138 SettingsManager]: * Use SBE=true [2021-11-13 17:38:12,891 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-13 17:38:12,891 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-13 17:38:12,892 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-13 17:38:12,892 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-13 17:38:12,892 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-13 17:38:12,892 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-13 17:38:12,893 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-13 17:38:12,893 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-13 17:38:12,893 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-13 17:38:12,893 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-13 17:38:12,893 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-13 17:38:12,894 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-13 17:38:12,894 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 17:38:12,894 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-13 17:38:12,894 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-13 17:38:12,895 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-13 17:38:12,895 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-13 17:38:12,895 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-13 17:38:12,895 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-13 17:38:12,896 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-13 17:38:12,896 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-13 17:38:12,896 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-13 17:38:12,896 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c55d79ca-6b20-436e-bfb3-3d2a45e8c03b/bin/uautomizer-YU5uOKAj3y/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c55d79ca-6b20-436e-bfb3-3d2a45e8c03b/bin/uautomizer-YU5uOKAj3y Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e8c1c69a9209f2e1e672b4301b3aeef542d8617026686dc57b4ac44c2de1cbfb [2021-11-13 17:38:13,135 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-13 17:38:13,161 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-13 17:38:13,165 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-13 17:38:13,166 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-13 17:38:13,167 INFO L275 PluginConnector]: CDTParser initialized [2021-11-13 17:38:13,168 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c55d79ca-6b20-436e-bfb3-3d2a45e8c03b/bin/uautomizer-YU5uOKAj3y/../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i [2021-11-13 17:38:13,247 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c55d79ca-6b20-436e-bfb3-3d2a45e8c03b/bin/uautomizer-YU5uOKAj3y/data/da879c88b/24a28a3b4c494efda67b5002dcd7b50c/FLAG96fec1250 [2021-11-13 17:38:14,319 INFO L306 CDTParser]: Found 1 translation units. [2021-11-13 17:38:14,321 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c55d79ca-6b20-436e-bfb3-3d2a45e8c03b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i [2021-11-13 17:38:14,388 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c55d79ca-6b20-436e-bfb3-3d2a45e8c03b/bin/uautomizer-YU5uOKAj3y/data/da879c88b/24a28a3b4c494efda67b5002dcd7b50c/FLAG96fec1250 [2021-11-13 17:38:14,626 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c55d79ca-6b20-436e-bfb3-3d2a45e8c03b/bin/uautomizer-YU5uOKAj3y/data/da879c88b/24a28a3b4c494efda67b5002dcd7b50c [2021-11-13 17:38:14,628 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-13 17:38:14,629 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-13 17:38:14,631 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-13 17:38:14,631 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-13 17:38:14,636 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-13 17:38:14,637 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 05:38:14" (1/1) ... [2021-11-13 17:38:14,638 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f6315fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:38:14, skipping insertion in model container [2021-11-13 17:38:14,638 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 05:38:14" (1/1) ... [2021-11-13 17:38:14,647 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-13 17:38:14,868 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-13 17:38:21,867 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c55d79ca-6b20-436e-bfb3-3d2a45e8c03b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[489935,489948] [2021-11-13 17:38:21,870 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c55d79ca-6b20-436e-bfb3-3d2a45e8c03b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[490080,490093] [2021-11-13 17:38:21,871 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c55d79ca-6b20-436e-bfb3-3d2a45e8c03b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[490226,490239] [2021-11-13 17:38:21,872 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c55d79ca-6b20-436e-bfb3-3d2a45e8c03b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[490391,490404] [2021-11-13 17:38:21,873 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c55d79ca-6b20-436e-bfb3-3d2a45e8c03b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[490549,490562] [2021-11-13 17:38:21,874 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c55d79ca-6b20-436e-bfb3-3d2a45e8c03b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[490707,490720] [2021-11-13 17:38:21,879 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c55d79ca-6b20-436e-bfb3-3d2a45e8c03b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[490865,490878] [2021-11-13 17:38:21,880 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c55d79ca-6b20-436e-bfb3-3d2a45e8c03b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[491025,491038] [2021-11-13 17:38:21,880 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c55d79ca-6b20-436e-bfb3-3d2a45e8c03b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[491184,491197] [2021-11-13 17:38:21,882 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c55d79ca-6b20-436e-bfb3-3d2a45e8c03b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[491323,491336] [2021-11-13 17:38:21,883 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c55d79ca-6b20-436e-bfb3-3d2a45e8c03b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[491465,491478] [2021-11-13 17:38:21,883 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c55d79ca-6b20-436e-bfb3-3d2a45e8c03b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[491614,491627] [2021-11-13 17:38:21,884 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c55d79ca-6b20-436e-bfb3-3d2a45e8c03b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[491753,491766] [2021-11-13 17:38:21,885 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c55d79ca-6b20-436e-bfb3-3d2a45e8c03b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[491908,491921] [2021-11-13 17:38:21,885 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c55d79ca-6b20-436e-bfb3-3d2a45e8c03b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[492068,492081] [2021-11-13 17:38:21,886 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c55d79ca-6b20-436e-bfb3-3d2a45e8c03b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[492219,492232] [2021-11-13 17:38:21,886 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c55d79ca-6b20-436e-bfb3-3d2a45e8c03b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[492370,492383] [2021-11-13 17:38:21,887 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c55d79ca-6b20-436e-bfb3-3d2a45e8c03b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[492522,492535] [2021-11-13 17:38:21,888 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c55d79ca-6b20-436e-bfb3-3d2a45e8c03b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[492671,492684] [2021-11-13 17:38:21,889 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c55d79ca-6b20-436e-bfb3-3d2a45e8c03b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[492819,492832] [2021-11-13 17:38:21,889 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c55d79ca-6b20-436e-bfb3-3d2a45e8c03b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[492976,492989] [2021-11-13 17:38:21,890 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c55d79ca-6b20-436e-bfb3-3d2a45e8c03b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[493125,493138] [2021-11-13 17:38:21,890 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c55d79ca-6b20-436e-bfb3-3d2a45e8c03b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[493281,493294] [2021-11-13 17:38:21,891 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c55d79ca-6b20-436e-bfb3-3d2a45e8c03b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[493434,493447] [2021-11-13 17:38:21,894 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c55d79ca-6b20-436e-bfb3-3d2a45e8c03b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[493580,493593] [2021-11-13 17:38:21,894 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c55d79ca-6b20-436e-bfb3-3d2a45e8c03b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[493723,493736] [2021-11-13 17:38:21,895 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c55d79ca-6b20-436e-bfb3-3d2a45e8c03b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[493875,493888] [2021-11-13 17:38:21,895 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c55d79ca-6b20-436e-bfb3-3d2a45e8c03b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[494021,494034] [2021-11-13 17:38:21,896 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c55d79ca-6b20-436e-bfb3-3d2a45e8c03b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[494166,494179] [2021-11-13 17:38:21,898 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c55d79ca-6b20-436e-bfb3-3d2a45e8c03b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[494320,494333] [2021-11-13 17:38:21,899 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c55d79ca-6b20-436e-bfb3-3d2a45e8c03b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[494471,494484] [2021-11-13 17:38:21,899 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c55d79ca-6b20-436e-bfb3-3d2a45e8c03b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[494626,494639] [2021-11-13 17:38:21,900 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c55d79ca-6b20-436e-bfb3-3d2a45e8c03b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[494778,494791] [2021-11-13 17:38:21,900 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c55d79ca-6b20-436e-bfb3-3d2a45e8c03b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[494933,494946] [2021-11-13 17:38:21,902 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c55d79ca-6b20-436e-bfb3-3d2a45e8c03b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[495097,495110] [2021-11-13 17:38:21,902 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c55d79ca-6b20-436e-bfb3-3d2a45e8c03b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[495253,495266] [2021-11-13 17:38:21,903 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c55d79ca-6b20-436e-bfb3-3d2a45e8c03b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[495417,495430] [2021-11-13 17:38:21,904 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c55d79ca-6b20-436e-bfb3-3d2a45e8c03b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[495559,495572] [2021-11-13 17:38:21,904 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c55d79ca-6b20-436e-bfb3-3d2a45e8c03b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[495717,495730] [2021-11-13 17:38:21,905 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c55d79ca-6b20-436e-bfb3-3d2a45e8c03b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[495884,495897] [2021-11-13 17:38:21,905 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c55d79ca-6b20-436e-bfb3-3d2a45e8c03b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[496043,496056] [2021-11-13 17:38:21,906 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c55d79ca-6b20-436e-bfb3-3d2a45e8c03b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[496202,496215] [2021-11-13 17:38:21,907 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c55d79ca-6b20-436e-bfb3-3d2a45e8c03b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[496351,496364] [2021-11-13 17:38:21,907 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c55d79ca-6b20-436e-bfb3-3d2a45e8c03b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[496498,496511] [2021-11-13 17:38:21,917 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c55d79ca-6b20-436e-bfb3-3d2a45e8c03b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[496637,496650] [2021-11-13 17:38:21,918 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c55d79ca-6b20-436e-bfb3-3d2a45e8c03b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[496800,496813] [2021-11-13 17:38:21,918 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c55d79ca-6b20-436e-bfb3-3d2a45e8c03b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[496966,496979] [2021-11-13 17:38:21,920 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c55d79ca-6b20-436e-bfb3-3d2a45e8c03b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[497130,497143] [2021-11-13 17:38:21,921 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c55d79ca-6b20-436e-bfb3-3d2a45e8c03b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[497295,497308] [2021-11-13 17:38:21,921 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c55d79ca-6b20-436e-bfb3-3d2a45e8c03b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[497460,497473] [2021-11-13 17:38:21,922 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c55d79ca-6b20-436e-bfb3-3d2a45e8c03b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[497626,497639] [2021-11-13 17:38:21,922 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c55d79ca-6b20-436e-bfb3-3d2a45e8c03b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[497791,497804] [2021-11-13 17:38:21,923 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c55d79ca-6b20-436e-bfb3-3d2a45e8c03b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[497958,497971] [2021-11-13 17:38:21,924 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c55d79ca-6b20-436e-bfb3-3d2a45e8c03b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[498118,498131] [2021-11-13 17:38:21,924 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c55d79ca-6b20-436e-bfb3-3d2a45e8c03b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[498280,498293] [2021-11-13 17:38:21,924 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c55d79ca-6b20-436e-bfb3-3d2a45e8c03b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[498439,498452] [2021-11-13 17:38:21,925 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c55d79ca-6b20-436e-bfb3-3d2a45e8c03b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[498585,498598] [2021-11-13 17:38:21,925 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c55d79ca-6b20-436e-bfb3-3d2a45e8c03b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[498728,498741] [2021-11-13 17:38:21,926 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c55d79ca-6b20-436e-bfb3-3d2a45e8c03b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[498872,498885] [2021-11-13 17:38:21,926 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c55d79ca-6b20-436e-bfb3-3d2a45e8c03b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[499015,499028] [2021-11-13 17:38:21,927 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c55d79ca-6b20-436e-bfb3-3d2a45e8c03b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[499159,499172] [2021-11-13 17:38:21,927 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c55d79ca-6b20-436e-bfb3-3d2a45e8c03b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[499300,499313] [2021-11-13 17:38:21,928 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c55d79ca-6b20-436e-bfb3-3d2a45e8c03b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[499438,499451] [2021-11-13 17:38:21,928 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c55d79ca-6b20-436e-bfb3-3d2a45e8c03b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[499596,499609] [2021-11-13 17:38:21,929 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c55d79ca-6b20-436e-bfb3-3d2a45e8c03b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[499755,499768] [2021-11-13 17:38:21,930 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c55d79ca-6b20-436e-bfb3-3d2a45e8c03b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[499911,499924] [2021-11-13 17:38:21,930 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c55d79ca-6b20-436e-bfb3-3d2a45e8c03b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[500060,500073] [2021-11-13 17:38:21,930 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c55d79ca-6b20-436e-bfb3-3d2a45e8c03b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[500212,500225] [2021-11-13 17:38:21,932 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c55d79ca-6b20-436e-bfb3-3d2a45e8c03b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[500363,500376] [2021-11-13 17:38:21,932 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c55d79ca-6b20-436e-bfb3-3d2a45e8c03b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[500512,500525] [2021-11-13 17:38:21,933 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c55d79ca-6b20-436e-bfb3-3d2a45e8c03b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[500664,500677] [2021-11-13 17:38:21,934 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c55d79ca-6b20-436e-bfb3-3d2a45e8c03b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[500812,500825] [2021-11-13 17:38:21,935 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c55d79ca-6b20-436e-bfb3-3d2a45e8c03b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[500965,500978] [2021-11-13 17:38:21,935 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c55d79ca-6b20-436e-bfb3-3d2a45e8c03b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[501116,501129] [2021-11-13 17:38:21,936 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c55d79ca-6b20-436e-bfb3-3d2a45e8c03b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[501266,501279] [2021-11-13 17:38:21,936 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c55d79ca-6b20-436e-bfb3-3d2a45e8c03b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[501413,501426] [2021-11-13 17:38:21,936 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c55d79ca-6b20-436e-bfb3-3d2a45e8c03b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[501564,501577] [2021-11-13 17:38:21,937 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c55d79ca-6b20-436e-bfb3-3d2a45e8c03b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[501715,501728] [2021-11-13 17:38:21,937 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c55d79ca-6b20-436e-bfb3-3d2a45e8c03b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[501863,501876] [2021-11-13 17:38:21,939 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c55d79ca-6b20-436e-bfb3-3d2a45e8c03b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[502029,502042] [2021-11-13 17:38:21,940 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c55d79ca-6b20-436e-bfb3-3d2a45e8c03b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[502198,502211] [2021-11-13 17:38:21,940 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c55d79ca-6b20-436e-bfb3-3d2a45e8c03b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[502365,502378] [2021-11-13 17:38:21,941 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c55d79ca-6b20-436e-bfb3-3d2a45e8c03b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[502533,502546] [2021-11-13 17:38:21,941 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c55d79ca-6b20-436e-bfb3-3d2a45e8c03b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[502683,502696] [2021-11-13 17:38:21,942 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c55d79ca-6b20-436e-bfb3-3d2a45e8c03b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[502830,502843] [2021-11-13 17:38:21,942 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c55d79ca-6b20-436e-bfb3-3d2a45e8c03b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[502991,503004] [2021-11-13 17:38:21,942 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c55d79ca-6b20-436e-bfb3-3d2a45e8c03b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[503161,503174] [2021-11-13 17:38:21,943 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c55d79ca-6b20-436e-bfb3-3d2a45e8c03b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[503323,503336] [2021-11-13 17:38:21,965 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 17:38:22,039 INFO L203 MainTranslator]: Completed pre-run [2021-11-13 17:38:22,511 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c55d79ca-6b20-436e-bfb3-3d2a45e8c03b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[489935,489948] [2021-11-13 17:38:22,511 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c55d79ca-6b20-436e-bfb3-3d2a45e8c03b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[490080,490093] [2021-11-13 17:38:22,512 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c55d79ca-6b20-436e-bfb3-3d2a45e8c03b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[490226,490239] [2021-11-13 17:38:22,512 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c55d79ca-6b20-436e-bfb3-3d2a45e8c03b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[490391,490404] [2021-11-13 17:38:22,513 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c55d79ca-6b20-436e-bfb3-3d2a45e8c03b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[490549,490562] [2021-11-13 17:38:22,513 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c55d79ca-6b20-436e-bfb3-3d2a45e8c03b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[490707,490720] [2021-11-13 17:38:22,513 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c55d79ca-6b20-436e-bfb3-3d2a45e8c03b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[490865,490878] [2021-11-13 17:38:22,514 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c55d79ca-6b20-436e-bfb3-3d2a45e8c03b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[491025,491038] [2021-11-13 17:38:22,514 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c55d79ca-6b20-436e-bfb3-3d2a45e8c03b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[491184,491197] [2021-11-13 17:38:22,515 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c55d79ca-6b20-436e-bfb3-3d2a45e8c03b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[491323,491336] [2021-11-13 17:38:22,515 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c55d79ca-6b20-436e-bfb3-3d2a45e8c03b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[491465,491478] [2021-11-13 17:38:22,516 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c55d79ca-6b20-436e-bfb3-3d2a45e8c03b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[491614,491627] [2021-11-13 17:38:22,516 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c55d79ca-6b20-436e-bfb3-3d2a45e8c03b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[491753,491766] [2021-11-13 17:38:22,517 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c55d79ca-6b20-436e-bfb3-3d2a45e8c03b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[491908,491921] [2021-11-13 17:38:22,517 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c55d79ca-6b20-436e-bfb3-3d2a45e8c03b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[492068,492081] [2021-11-13 17:38:22,517 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c55d79ca-6b20-436e-bfb3-3d2a45e8c03b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[492219,492232] [2021-11-13 17:38:22,518 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c55d79ca-6b20-436e-bfb3-3d2a45e8c03b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[492370,492383] [2021-11-13 17:38:22,518 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c55d79ca-6b20-436e-bfb3-3d2a45e8c03b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[492522,492535] [2021-11-13 17:38:22,519 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c55d79ca-6b20-436e-bfb3-3d2a45e8c03b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[492671,492684] [2021-11-13 17:38:22,519 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c55d79ca-6b20-436e-bfb3-3d2a45e8c03b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[492819,492832] [2021-11-13 17:38:22,520 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c55d79ca-6b20-436e-bfb3-3d2a45e8c03b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[492976,492989] [2021-11-13 17:38:22,520 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c55d79ca-6b20-436e-bfb3-3d2a45e8c03b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[493125,493138] [2021-11-13 17:38:22,521 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c55d79ca-6b20-436e-bfb3-3d2a45e8c03b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[493281,493294] [2021-11-13 17:38:22,521 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c55d79ca-6b20-436e-bfb3-3d2a45e8c03b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[493434,493447] [2021-11-13 17:38:22,522 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c55d79ca-6b20-436e-bfb3-3d2a45e8c03b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[493580,493593] [2021-11-13 17:38:22,522 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c55d79ca-6b20-436e-bfb3-3d2a45e8c03b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[493723,493736] [2021-11-13 17:38:22,522 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c55d79ca-6b20-436e-bfb3-3d2a45e8c03b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[493875,493888] [2021-11-13 17:38:22,523 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c55d79ca-6b20-436e-bfb3-3d2a45e8c03b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[494021,494034] [2021-11-13 17:38:22,523 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c55d79ca-6b20-436e-bfb3-3d2a45e8c03b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[494166,494179] [2021-11-13 17:38:22,524 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c55d79ca-6b20-436e-bfb3-3d2a45e8c03b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[494320,494333] [2021-11-13 17:38:22,524 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c55d79ca-6b20-436e-bfb3-3d2a45e8c03b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[494471,494484] [2021-11-13 17:38:22,525 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c55d79ca-6b20-436e-bfb3-3d2a45e8c03b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[494626,494639] [2021-11-13 17:38:22,525 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c55d79ca-6b20-436e-bfb3-3d2a45e8c03b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[494778,494791] [2021-11-13 17:38:22,526 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c55d79ca-6b20-436e-bfb3-3d2a45e8c03b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[494933,494946] [2021-11-13 17:38:22,526 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c55d79ca-6b20-436e-bfb3-3d2a45e8c03b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[495097,495110] [2021-11-13 17:38:22,527 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c55d79ca-6b20-436e-bfb3-3d2a45e8c03b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[495253,495266] [2021-11-13 17:38:22,527 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c55d79ca-6b20-436e-bfb3-3d2a45e8c03b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[495417,495430] [2021-11-13 17:38:22,527 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c55d79ca-6b20-436e-bfb3-3d2a45e8c03b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[495559,495572] [2021-11-13 17:38:22,528 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c55d79ca-6b20-436e-bfb3-3d2a45e8c03b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[495717,495730] [2021-11-13 17:38:22,528 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c55d79ca-6b20-436e-bfb3-3d2a45e8c03b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[495884,495897] [2021-11-13 17:38:22,529 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c55d79ca-6b20-436e-bfb3-3d2a45e8c03b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[496043,496056] [2021-11-13 17:38:22,529 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c55d79ca-6b20-436e-bfb3-3d2a45e8c03b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[496202,496215] [2021-11-13 17:38:22,530 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c55d79ca-6b20-436e-bfb3-3d2a45e8c03b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[496351,496364] [2021-11-13 17:38:22,530 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c55d79ca-6b20-436e-bfb3-3d2a45e8c03b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[496498,496511] [2021-11-13 17:38:22,530 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c55d79ca-6b20-436e-bfb3-3d2a45e8c03b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[496637,496650] [2021-11-13 17:38:22,531 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c55d79ca-6b20-436e-bfb3-3d2a45e8c03b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[496800,496813] [2021-11-13 17:38:22,531 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c55d79ca-6b20-436e-bfb3-3d2a45e8c03b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[496966,496979] [2021-11-13 17:38:22,532 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c55d79ca-6b20-436e-bfb3-3d2a45e8c03b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[497130,497143] [2021-11-13 17:38:22,532 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c55d79ca-6b20-436e-bfb3-3d2a45e8c03b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[497295,497308] [2021-11-13 17:38:22,533 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c55d79ca-6b20-436e-bfb3-3d2a45e8c03b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[497460,497473] [2021-11-13 17:38:22,533 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c55d79ca-6b20-436e-bfb3-3d2a45e8c03b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[497626,497639] [2021-11-13 17:38:22,533 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c55d79ca-6b20-436e-bfb3-3d2a45e8c03b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[497791,497804] [2021-11-13 17:38:22,534 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c55d79ca-6b20-436e-bfb3-3d2a45e8c03b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[497958,497971] [2021-11-13 17:38:22,579 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c55d79ca-6b20-436e-bfb3-3d2a45e8c03b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[498118,498131] [2021-11-13 17:38:22,579 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c55d79ca-6b20-436e-bfb3-3d2a45e8c03b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[498280,498293] [2021-11-13 17:38:22,579 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c55d79ca-6b20-436e-bfb3-3d2a45e8c03b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[498439,498452] [2021-11-13 17:38:22,580 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c55d79ca-6b20-436e-bfb3-3d2a45e8c03b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[498585,498598] [2021-11-13 17:38:22,580 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c55d79ca-6b20-436e-bfb3-3d2a45e8c03b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[498728,498741] [2021-11-13 17:38:22,580 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c55d79ca-6b20-436e-bfb3-3d2a45e8c03b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[498872,498885] [2021-11-13 17:38:22,581 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c55d79ca-6b20-436e-bfb3-3d2a45e8c03b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[499015,499028] [2021-11-13 17:38:22,581 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c55d79ca-6b20-436e-bfb3-3d2a45e8c03b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[499159,499172] [2021-11-13 17:38:22,581 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c55d79ca-6b20-436e-bfb3-3d2a45e8c03b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[499300,499313] [2021-11-13 17:38:22,582 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c55d79ca-6b20-436e-bfb3-3d2a45e8c03b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[499438,499451] [2021-11-13 17:38:22,582 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c55d79ca-6b20-436e-bfb3-3d2a45e8c03b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[499596,499609] [2021-11-13 17:38:22,582 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c55d79ca-6b20-436e-bfb3-3d2a45e8c03b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[499755,499768] [2021-11-13 17:38:22,583 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c55d79ca-6b20-436e-bfb3-3d2a45e8c03b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[499911,499924] [2021-11-13 17:38:22,583 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c55d79ca-6b20-436e-bfb3-3d2a45e8c03b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[500060,500073] [2021-11-13 17:38:22,583 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c55d79ca-6b20-436e-bfb3-3d2a45e8c03b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[500212,500225] [2021-11-13 17:38:22,584 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c55d79ca-6b20-436e-bfb3-3d2a45e8c03b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[500363,500376] [2021-11-13 17:38:22,584 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c55d79ca-6b20-436e-bfb3-3d2a45e8c03b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[500512,500525] [2021-11-13 17:38:22,584 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c55d79ca-6b20-436e-bfb3-3d2a45e8c03b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[500664,500677] [2021-11-13 17:38:22,585 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c55d79ca-6b20-436e-bfb3-3d2a45e8c03b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[500812,500825] [2021-11-13 17:38:22,585 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c55d79ca-6b20-436e-bfb3-3d2a45e8c03b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[500965,500978] [2021-11-13 17:38:22,585 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c55d79ca-6b20-436e-bfb3-3d2a45e8c03b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[501116,501129] [2021-11-13 17:38:22,586 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c55d79ca-6b20-436e-bfb3-3d2a45e8c03b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[501266,501279] [2021-11-13 17:38:22,586 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c55d79ca-6b20-436e-bfb3-3d2a45e8c03b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[501413,501426] [2021-11-13 17:38:22,586 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c55d79ca-6b20-436e-bfb3-3d2a45e8c03b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[501564,501577] [2021-11-13 17:38:22,587 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c55d79ca-6b20-436e-bfb3-3d2a45e8c03b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[501715,501728] [2021-11-13 17:38:22,588 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c55d79ca-6b20-436e-bfb3-3d2a45e8c03b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[501863,501876] [2021-11-13 17:38:22,588 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c55d79ca-6b20-436e-bfb3-3d2a45e8c03b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[502029,502042] [2021-11-13 17:38:22,589 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c55d79ca-6b20-436e-bfb3-3d2a45e8c03b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[502198,502211] [2021-11-13 17:38:22,589 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c55d79ca-6b20-436e-bfb3-3d2a45e8c03b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[502365,502378] [2021-11-13 17:38:22,589 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c55d79ca-6b20-436e-bfb3-3d2a45e8c03b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[502533,502546] [2021-11-13 17:38:22,590 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c55d79ca-6b20-436e-bfb3-3d2a45e8c03b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[502683,502696] [2021-11-13 17:38:22,590 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c55d79ca-6b20-436e-bfb3-3d2a45e8c03b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[502830,502843] [2021-11-13 17:38:22,591 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c55d79ca-6b20-436e-bfb3-3d2a45e8c03b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[502991,503004] [2021-11-13 17:38:22,591 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c55d79ca-6b20-436e-bfb3-3d2a45e8c03b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[503161,503174] [2021-11-13 17:38:22,592 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c55d79ca-6b20-436e-bfb3-3d2a45e8c03b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[503323,503336] [2021-11-13 17:38:22,597 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 17:38:22,974 INFO L208 MainTranslator]: Completed translation [2021-11-13 17:38:22,975 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:38:22 WrapperNode [2021-11-13 17:38:22,976 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-13 17:38:22,977 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-13 17:38:22,977 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-13 17:38:22,977 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-13 17:38:22,987 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:38:22" (1/1) ... [2021-11-13 17:38:23,162 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:38:22" (1/1) ... [2021-11-13 17:38:23,636 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-13 17:38:23,637 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-13 17:38:23,637 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-13 17:38:23,637 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-13 17:38:23,665 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:38:22" (1/1) ... [2021-11-13 17:38:23,665 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:38:22" (1/1) ... [2021-11-13 17:38:23,714 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:38:22" (1/1) ... [2021-11-13 17:38:23,715 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:38:22" (1/1) ... [2021-11-13 17:38:23,900 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:38:22" (1/1) ... [2021-11-13 17:38:23,949 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:38:22" (1/1) ... [2021-11-13 17:38:24,071 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:38:22" (1/1) ... [2021-11-13 17:38:24,122 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-13 17:38:24,123 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-13 17:38:24,124 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-13 17:38:24,124 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-13 17:38:24,125 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:38:22" (1/1) ... [2021-11-13 17:38:24,136 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 17:38:24,149 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c55d79ca-6b20-436e-bfb3-3d2a45e8c03b/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 17:38:24,173 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c55d79ca-6b20-436e-bfb3-3d2a45e8c03b/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-13 17:38:24,191 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c55d79ca-6b20-436e-bfb3-3d2a45e8c03b/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-13 17:38:24,234 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int_nonpositive [2021-11-13 17:38:24,235 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int_nonpositive [2021-11-13 17:38:24,235 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2021-11-13 17:38:24,235 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_skb [2021-11-13 17:38:24,235 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_skb [2021-11-13 17:38:24,236 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_head_init [2021-11-13 17:38:24,236 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_head_init [2021-11-13 17:38:24,236 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_shutdown_interface [2021-11-13 17:38:24,237 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_shutdown_interface [2021-11-13 17:38:24,237 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_destroy_interface [2021-11-13 17:38:24,238 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_destroy_interface [2021-11-13 17:38:24,238 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2021-11-13 17:38:24,238 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2021-11-13 17:38:24,239 INFO L130 BoogieDeclarations]: Found specification of procedure bpf_prog_destroy [2021-11-13 17:38:24,239 INFO L138 BoogieDeclarations]: Found implementation of procedure bpf_prog_destroy [2021-11-13 17:38:24,239 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_push [2021-11-13 17:38:24,239 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_push [2021-11-13 17:38:24,239 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_mmc_sdio_func_check_final_state [2021-11-13 17:38:24,239 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_mmc_sdio_func_check_final_state [2021-11-13 17:38:24,240 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-11-13 17:38:24,240 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-11-13 17:38:24,240 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_lib_idr__double_init [2021-11-13 17:38:24,240 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_lib_idr__double_init [2021-11-13 17:38:24,240 INFO L130 BoogieDeclarations]: Found specification of procedure skb_peek [2021-11-13 17:38:24,241 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_peek [2021-11-13 17:38:24,241 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_empty [2021-11-13 17:38:24,241 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_empty [2021-11-13 17:38:24,241 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_request_check_final_state [2021-11-13 17:38:24,241 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_request_check_final_state [2021-11-13 17:38:24,242 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_bh [2021-11-13 17:38:24,242 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_bh [2021-11-13 17:38:24,242 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-11-13 17:38:24,242 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-11-13 17:38:24,242 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_bh_check_final_state [2021-11-13 17:38:24,243 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_bh_check_final_state [2021-11-13 17:38:24,243 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-13 17:38:24,243 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_genhd_check_final_state [2021-11-13 17:38:24,243 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_genhd_check_final_state [2021-11-13 17:38:24,243 INFO L130 BoogieDeclarations]: Found specification of procedure skb_headroom [2021-11-13 17:38:24,244 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_headroom [2021-11-13 17:38:24,244 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_output_wakeup [2021-11-13 17:38:24,244 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_output_wakeup [2021-11-13 17:38:24,244 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2021-11-13 17:38:24,244 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2021-11-13 17:38:24,245 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_srcu_check_final_state [2021-11-13 17:38:24,245 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_srcu_check_final_state [2021-11-13 17:38:24,245 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_open [2021-11-13 17:38:24,245 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_open [2021-11-13 17:38:24,245 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-13 17:38:24,246 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2021-11-13 17:38:24,246 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2021-11-13 17:38:24,246 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_lib_idr__not_initialized [2021-11-13 17:38:24,246 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_lib_idr__not_initialized [2021-11-13 17:38:24,246 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_rwlock_read_unlock [2021-11-13 17:38:24,246 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_rwlock_read_unlock [2021-11-13 17:38:24,247 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-11-13 17:38:24,247 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-11-13 17:38:24,247 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-13 17:38:24,247 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-13 17:38:24,248 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2021-11-13 17:38:24,248 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2021-11-13 17:38:24,248 INFO L130 BoogieDeclarations]: Found specification of procedure skb_headlen [2021-11-13 17:38:24,248 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_headlen [2021-11-13 17:38:24,249 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2021-11-13 17:38:24,249 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2021-11-13 17:38:24,249 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_tail [2021-11-13 17:38:24,249 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_tail [2021-11-13 17:38:24,249 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2021-11-13 17:38:24,250 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2021-11-13 17:38:24,250 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_ioctl [2021-11-13 17:38:24,250 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_ioctl [2021-11-13 17:38:24,250 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_destroy_channel [2021-11-13 17:38:24,250 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_destroy_channel [2021-11-13 17:38:24,251 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_198 [2021-11-13 17:38:24,255 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_198 [2021-11-13 17:38:24,256 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-13 17:38:24,256 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-13 17:38:24,257 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2021-11-13 17:38:24,258 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2021-11-13 17:38:24,258 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-13 17:38:24,259 INFO L130 BoogieDeclarations]: Found specification of procedure skb_push [2021-11-13 17:38:24,259 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_push [2021-11-13 17:38:24,259 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_xmit_process [2021-11-13 17:38:24,266 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_xmit_process [2021-11-13 17:38:24,266 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_unlink [2021-11-13 17:38:24,267 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_unlink [2021-11-13 17:38:24,268 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2021-11-13 17:38:24,268 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2021-11-13 17:38:24,268 INFO L130 BoogieDeclarations]: Found specification of procedure put_unaligned_be16 [2021-11-13 17:38:24,268 INFO L138 BoogieDeclarations]: Found implementation of procedure put_unaligned_be16 [2021-11-13 17:38:24,268 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-13 17:38:24,269 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-13 17:38:24,269 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_sock_check_final_state [2021-11-13 17:38:24,269 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_sock_check_final_state [2021-11-13 17:38:24,269 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_gadget_check_final_state [2021-11-13 17:38:24,269 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_gadget_check_final_state [2021-11-13 17:38:24,270 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-13 17:38:24,270 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-11-13 17:38:24,270 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-11-13 17:38:24,270 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_fs_sysfs_check_final_state [2021-11-13 17:38:24,271 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_fs_sysfs_check_final_state [2021-11-13 17:38:24,271 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_drivers_base_class__double_registration [2021-11-13 17:38:24,271 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_drivers_base_class__double_registration [2021-11-13 17:38:24,272 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-13 17:38:24,272 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_send_frame [2021-11-13 17:38:24,272 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_send_frame [2021-11-13 17:38:24,272 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_receive_error [2021-11-13 17:38:24,272 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_receive_error [2021-11-13 17:38:24,272 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_find_unit [2021-11-13 17:38:24,273 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_find_unit [2021-11-13 17:38:24,273 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_module_module_put [2021-11-13 17:38:24,273 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_module_module_put [2021-11-13 17:38:24,273 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_lib_idr_idr_alloc_p [2021-11-13 17:38:24,273 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_lib_idr_idr_alloc_p [2021-11-13 17:38:24,273 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-11-13 17:38:24,274 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-11-13 17:38:24,274 INFO L130 BoogieDeclarations]: Found specification of procedure find_compressor [2021-11-13 17:38:24,274 INFO L138 BoogieDeclarations]: Found implementation of procedure find_compressor [2021-11-13 17:38:24,274 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_pernet [2021-11-13 17:38:24,274 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_pernet [2021-11-13 17:38:24,275 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-11-13 17:38:24,275 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-11-13 17:38:24,276 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_dev_init [2021-11-13 17:38:24,276 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_dev_init [2021-11-13 17:38:24,276 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2021-11-13 17:38:24,276 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2021-11-13 17:38:24,277 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_check_final_state [2021-11-13 17:38:24,277 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_check_final_state [2021-11-13 17:38:24,277 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_urb_check_final_state [2021-11-13 17:38:24,277 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_urb_check_final_state [2021-11-13 17:38:24,277 INFO L130 BoogieDeclarations]: Found specification of procedure slhc_free [2021-11-13 17:38:24,278 INFO L138 BoogieDeclarations]: Found implementation of procedure slhc_free [2021-11-13 17:38:24,278 INFO L130 BoogieDeclarations]: Found specification of procedure get_unaligned_be16 [2021-11-13 17:38:24,278 INFO L138 BoogieDeclarations]: Found implementation of procedure get_unaligned_be16 [2021-11-13 17:38:24,278 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2021-11-13 17:38:24,278 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2021-11-13 17:38:24,278 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-13 17:38:24,279 INFO L130 BoogieDeclarations]: Found specification of procedure skb_pull [2021-11-13 17:38:24,279 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_pull [2021-11-13 17:38:24,279 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-13 17:38:24,279 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-13 17:38:24,279 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_ccp_closed [2021-11-13 17:38:24,279 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_ccp_closed [2021-11-13 17:38:24,280 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec [2021-11-13 17:38:24,280 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec [2021-11-13 17:38:24,280 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2021-11-13 17:38:24,280 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2021-11-13 17:38:24,280 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_lock_all_ppp_mutex_of_ppp_net [2021-11-13 17:38:24,280 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_lock_all_ppp_mutex_of_ppp_net [2021-11-13 17:38:24,281 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_usb_gadget__chrdev_registration_with_usb_gadget [2021-11-13 17:38:24,281 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_usb_gadget__chrdev_registration_with_usb_gadget [2021-11-13 17:38:24,281 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_usb_gadget__class_registration_with_usb_gadget [2021-11-13 17:38:24,281 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_usb_gadget__class_registration_with_usb_gadget [2021-11-13 17:38:24,281 INFO L130 BoogieDeclarations]: Found specification of procedure find_comp_entry [2021-11-13 17:38:24,281 INFO L138 BoogieDeclarations]: Found implementation of procedure find_comp_entry [2021-11-13 17:38:24,282 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_coherent_check_final_state [2021-11-13 17:38:24,282 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_coherent_check_final_state [2021-11-13 17:38:24,282 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-13 17:38:24,282 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-13 17:38:24,282 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_chrdev_159 [2021-11-13 17:38:24,282 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_chrdev_159 [2021-11-13 17:38:24,283 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-13 17:38:24,283 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-13 17:38:24,283 INFO L130 BoogieDeclarations]: Found specification of procedure unit_find [2021-11-13 17:38:24,283 INFO L138 BoogieDeclarations]: Found implementation of procedure unit_find [2021-11-13 17:38:24,283 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_arch_io_check_final_state [2021-11-13 17:38:24,284 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_arch_io_check_final_state [2021-11-13 17:38:24,284 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_module_check_final_state [2021-11-13 17:38:24,284 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_module_check_final_state [2021-11-13 17:38:24,284 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-11-13 17:38:24,284 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-11-13 17:38:24,284 INFO L130 BoogieDeclarations]: Found specification of procedure get_filter [2021-11-13 17:38:24,285 INFO L138 BoogieDeclarations]: Found implementation of procedure get_filter [2021-11-13 17:38:24,285 INFO L130 BoogieDeclarations]: Found specification of procedure bpf_prog_create [2021-11-13 17:38:24,285 INFO L138 BoogieDeclarations]: Found implementation of procedure bpf_prog_create [2021-11-13 17:38:24,285 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-11-13 17:38:24,285 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-11-13 17:38:24,285 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec_and_test [2021-11-13 17:38:24,286 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec_and_test [2021-11-13 17:38:24,286 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2021-11-13 17:38:24,286 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2021-11-13 17:38:24,286 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-13 17:38:24,286 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-13 17:38:24,286 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_queue_check_final_state [2021-11-13 17:38:24,287 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_queue_check_final_state [2021-11-13 17:38:24,287 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-13 17:38:24,287 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_rwlock_write_unlock [2021-11-13 17:38:24,287 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_rwlock_write_unlock [2021-11-13 17:38:24,287 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2021-11-13 17:38:24,287 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2021-11-13 17:38:24,288 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_channel_push [2021-11-13 17:38:24,288 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_channel_push [2021-11-13 17:38:24,288 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-11-13 17:38:24,288 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-11-13 17:38:24,288 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_197 [2021-11-13 17:38:24,288 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_197 [2021-11-13 17:38:24,289 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-13 17:38:24,289 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2021-11-13 17:38:24,289 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2021-11-13 17:38:24,289 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_bh_153 [2021-11-13 17:38:24,290 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_bh_153 [2021-11-13 17:38:24,292 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2021-11-13 17:38:24,293 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2021-11-13 17:38:24,293 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-13 17:38:24,293 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_in_interrupt_context [2021-11-13 17:38:24,293 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_in_interrupt_context [2021-11-13 17:38:24,293 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_after_alloc [2021-11-13 17:38:24,293 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_after_alloc [2021-11-13 17:38:24,294 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_register_reset_error_counter [2021-11-13 17:38:24,294 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_register_reset_error_counter [2021-11-13 17:38:24,294 INFO L130 BoogieDeclarations]: Found specification of procedure skb_cloned [2021-11-13 17:38:24,295 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_cloned [2021-11-13 17:38:24,296 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_do_recv [2021-11-13 17:38:24,296 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_do_recv [2021-11-13 17:38:24,296 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_bh_166 [2021-11-13 17:38:24,296 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_bh_166 [2021-11-13 17:38:24,296 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_lib_idr__more_at_exit [2021-11-13 17:38:24,297 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_lib_idr__more_at_exit [2021-11-13 17:38:24,297 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2021-11-13 17:38:24,297 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2021-11-13 17:38:24,297 INFO L130 BoogieDeclarations]: Found specification of procedure proto_to_npindex [2021-11-13 17:38:24,297 INFO L138 BoogieDeclarations]: Found implementation of procedure proto_to_npindex [2021-11-13 17:38:24,297 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_bh_131 [2021-11-13 17:38:24,298 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_bh_131 [2021-11-13 17:38:24,298 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_bh_132 [2021-11-13 17:38:24,298 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_bh_132 [2021-11-13 17:38:24,298 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_fs_char_dev__double_registration [2021-11-13 17:38:24,298 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_fs_char_dev__double_registration [2021-11-13 17:38:24,298 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_lib_idr_check_final_state [2021-11-13 17:38:24,299 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_lib_idr_check_final_state [2021-11-13 17:38:24,299 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_purge [2021-11-13 17:38:24,299 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_purge [2021-11-13 17:38:24,299 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_unlock_ppp_mutex [2021-11-13 17:38:24,299 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_unlock_ppp_mutex [2021-11-13 17:38:24,299 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_lib_idr__destroyed_before_usage [2021-11-13 17:38:24,300 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_lib_idr__destroyed_before_usage [2021-11-13 17:38:24,300 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_rwlock_write_lock [2021-11-13 17:38:24,300 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_rwlock_write_lock [2021-11-13 17:38:24,304 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_init_net [2021-11-13 17:38:24,305 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_init_net [2021-11-13 17:38:24,305 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-13 17:38:24,305 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-13 17:38:24,305 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-11-13 17:38:24,306 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-11-13 17:38:24,306 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2021-11-13 17:38:24,306 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2021-11-13 17:38:24,306 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_register_reset_error_counter [2021-11-13 17:38:24,306 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_register_reset_error_counter [2021-11-13 17:38:24,306 INFO L130 BoogieDeclarations]: Found specification of procedure pskb_may_pull [2021-11-13 17:38:24,307 INFO L138 BoogieDeclarations]: Found implementation of procedure pskb_may_pull [2021-11-13 17:38:24,307 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_ccp_peek [2021-11-13 17:38:24,307 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_ccp_peek [2021-11-13 17:38:24,307 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_bh [2021-11-13 17:38:24,307 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_bh [2021-11-13 17:38:24,307 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~int~TO~int [2021-11-13 17:38:24,308 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~int~TO~int [2021-11-13 17:38:24,308 INFO L130 BoogieDeclarations]: Found specification of procedure skb_dequeue [2021-11-13 17:38:24,308 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_dequeue [2021-11-13 17:38:24,308 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-13 17:38:24,308 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-13 17:38:24,308 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-13 17:38:24,309 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_setup [2021-11-13 17:38:24,309 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_setup [2021-11-13 17:38:24,309 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-11-13 17:38:24,309 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-11-13 17:38:24,309 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2021-11-13 17:38:24,309 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2021-11-13 17:38:24,310 INFO L130 BoogieDeclarations]: Found specification of procedure init_ppp_file [2021-11-13 17:38:24,310 INFO L138 BoogieDeclarations]: Found implementation of procedure init_ppp_file [2021-11-13 17:38:24,310 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-11-13 17:38:24,310 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-11-13 17:38:24,310 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_release [2021-11-13 17:38:24,311 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_release [2021-11-13 17:38:24,311 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2021-11-13 17:38:24,311 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2021-11-13 17:38:24,311 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_unlock_all_ppp_mutex_of_ppp_net [2021-11-13 17:38:24,311 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_unlock_all_ppp_mutex_of_ppp_net [2021-11-13 17:38:24,311 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-13 17:38:24,312 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2021-11-13 17:38:24,312 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2021-11-13 17:38:24,312 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_bh_167 [2021-11-13 17:38:24,312 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_bh_167 [2021-11-13 17:38:24,312 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_rwlock_read_lock [2021-11-13 17:38:24,312 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_rwlock_read_lock [2021-11-13 17:38:24,313 INFO L130 BoogieDeclarations]: Found specification of procedure kfree_skb [2021-11-13 17:38:24,313 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree_skb [2021-11-13 17:38:24,313 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2021-11-13 17:38:24,313 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2021-11-13 17:38:24,313 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_rtnetlink_check_final_state [2021-11-13 17:38:24,314 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_rtnetlink_check_final_state [2021-11-13 17:38:24,314 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_bh_154 [2021-11-13 17:38:24,314 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_bh_154 [2021-11-13 17:38:24,314 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-11-13 17:38:24,314 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-11-13 17:38:24,314 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_pernet_device [2021-11-13 17:38:24,315 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_pernet_device [2021-11-13 17:38:24,315 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_disconnect_channel [2021-11-13 17:38:24,315 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_disconnect_channel [2021-11-13 17:38:24,315 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_lock_ppp_mutex [2021-11-13 17:38:24,315 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_lock_ppp_mutex [2021-11-13 17:38:24,315 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2021-11-13 17:38:24,316 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2021-11-13 17:38:24,316 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-11-13 17:38:24,316 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-11-13 17:38:24,316 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_bh_133 [2021-11-13 17:38:24,316 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_bh_133 [2021-11-13 17:38:24,316 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_exit_net [2021-11-13 17:38:24,317 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_exit_net [2021-11-13 17:38:24,317 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_bh_134 [2021-11-13 17:38:24,317 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_bh_134 [2021-11-13 17:38:24,317 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_unregister_channel [2021-11-13 17:38:24,317 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_unregister_channel [2021-11-13 17:38:24,317 INFO L130 BoogieDeclarations]: Found specification of procedure net_generic [2021-11-13 17:38:24,318 INFO L138 BoogieDeclarations]: Found implementation of procedure net_generic [2021-11-13 17:38:24,318 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_rwlock_check_final_state [2021-11-13 17:38:24,318 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_rwlock_check_final_state [2021-11-13 17:38:24,318 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-11-13 17:38:24,318 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-11-13 17:38:24,319 INFO L130 BoogieDeclarations]: Found specification of procedure unit_put [2021-11-13 17:38:24,319 INFO L138 BoogieDeclarations]: Found implementation of procedure unit_put [2021-11-13 17:38:24,319 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_receive_nonmp_frame [2021-11-13 17:38:24,319 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_receive_nonmp_frame [2021-11-13 17:38:24,319 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_fs_char_dev_check_final_state [2021-11-13 17:38:24,319 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_fs_char_dev_check_final_state [2021-11-13 17:38:24,320 INFO L130 BoogieDeclarations]: Found specification of procedure net_ratelimit [2021-11-13 17:38:24,320 INFO L138 BoogieDeclarations]: Found implementation of procedure net_ratelimit [2021-11-13 17:38:24,320 INFO L130 BoogieDeclarations]: Found specification of procedure dev_alloc_skb [2021-11-13 17:38:24,320 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_alloc_skb [2021-11-13 17:38:24,320 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_drivers_base_class_check_final_state [2021-11-13 17:38:24,320 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_drivers_base_class_check_final_state [2021-11-13 17:38:24,321 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2021-11-13 17:38:24,321 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2021-11-13 17:38:24,321 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2021-11-13 17:38:24,321 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2021-11-13 17:38:24,321 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~$Pointer$ [2021-11-13 17:38:24,321 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~$Pointer$ [2021-11-13 17:38:24,322 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2021-11-13 17:38:24,322 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2021-11-13 17:38:24,323 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_long_read [2021-11-13 17:38:24,323 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_long_read [2021-11-13 17:38:24,323 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-11-13 17:38:24,324 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-11-13 17:38:24,324 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_sched_check_final_state [2021-11-13 17:38:24,324 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_sched_check_final_state [2021-11-13 17:38:24,324 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_register_net_channel [2021-11-13 17:38:24,324 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_register_net_channel [2021-11-13 17:38:24,324 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_mp_explode [2021-11-13 17:38:24,325 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_mp_explode [2021-11-13 17:38:24,325 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-11-13 17:38:24,325 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-11-13 17:38:24,325 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_poll [2021-11-13 17:38:24,325 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_poll [2021-11-13 17:38:24,325 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-13 17:38:24,326 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2021-11-13 17:38:24,326 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2021-11-13 17:38:26,075 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-13 17:38:35,362 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-13 17:38:35,362 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-11-13 17:38:35,370 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 05:38:35 BoogieIcfgContainer [2021-11-13 17:38:35,370 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-13 17:38:35,373 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-13 17:38:35,373 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-13 17:38:35,377 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-13 17:38:35,378 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 05:38:14" (1/3) ... [2021-11-13 17:38:35,379 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53fcbced and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 05:38:35, skipping insertion in model container [2021-11-13 17:38:35,379 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:38:22" (2/3) ... [2021-11-13 17:38:35,379 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53fcbced and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 05:38:35, skipping insertion in model container [2021-11-13 17:38:35,379 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 05:38:35" (3/3) ... [2021-11-13 17:38:35,381 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i [2021-11-13 17:38:35,388 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-13 17:38:35,389 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 44 error locations. [2021-11-13 17:38:35,470 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-13 17:38:35,479 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-13 17:38:35,479 INFO L340 AbstractCegarLoop]: Starting to check reachability of 44 error locations. [2021-11-13 17:38:35,669 INFO L276 IsEmpty]: Start isEmpty. Operand has 2663 states, 1787 states have (on average 1.3256855064353665) internal successors, (2369), 1906 states have internal predecessors, (2369), 665 states have call successors, (665), 169 states have call predecessors, (665), 168 states have return successors, (659), 636 states have call predecessors, (659), 659 states have call successors, (659) [2021-11-13 17:38:35,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-11-13 17:38:35,680 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:38:35,681 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-11-13 17:38:35,682 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_assert_linux_fs_char_dev__double_registrationErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_usb_gadget__class_registration_with_usb_gadgetErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 42 more)] === [2021-11-13 17:38:35,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:38:35,695 INFO L85 PathProgramCache]: Analyzing trace with hash 991843258, now seen corresponding path program 1 times [2021-11-13 17:38:35,706 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:38:35,708 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1087826652] [2021-11-13 17:38:35,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:38:35,710 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:38:36,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:38:36,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-13 17:38:36,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:38:36,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-11-13 17:38:36,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:38:36,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:38:36,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:38:36,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 17:38:36,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:38:36,781 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-13 17:38:36,781 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:38:36,782 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1087826652] [2021-11-13 17:38:36,782 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1087826652] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 17:38:36,785 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:38:36,785 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-13 17:38:36,787 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [169793157] [2021-11-13 17:38:36,788 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 17:38:36,792 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-13 17:38:36,792 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:38:36,826 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-13 17:38:36,827 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-13 17:38:36,836 INFO L87 Difference]: Start difference. First operand has 2663 states, 1787 states have (on average 1.3256855064353665) internal successors, (2369), 1906 states have internal predecessors, (2369), 665 states have call successors, (665), 169 states have call predecessors, (665), 168 states have return successors, (659), 636 states have call predecessors, (659), 659 states have call successors, (659) Second operand has 5 states, 5 states have (on average 4.4) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-11-13 17:38:37,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:38:37,584 INFO L93 Difference]: Finished difference Result 7839 states and 11384 transitions. [2021-11-13 17:38:37,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-13 17:38:37,589 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.4) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 34 [2021-11-13 17:38:37,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:38:37,675 INFO L225 Difference]: With dead ends: 7839 [2021-11-13 17:38:37,676 INFO L226 Difference]: Without dead ends: 5171 [2021-11-13 17:38:37,721 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-13 17:38:37,732 INFO L933 BasicCegarLoop]: 6651 mSDtfsCounter, 3570 mSDsluCounter, 16772 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.14ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3571 SdHoareTripleChecker+Valid, 23423 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 128.94ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 28.52ms IncrementalHoareTripleChecker+Time [2021-11-13 17:38:37,733 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3571 Valid, 23423 Invalid, 16 Unknown, 0 Unchecked, 128.94ms Time], IncrementalHoareTripleChecker [2 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 28.52ms Time] [2021-11-13 17:38:37,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5171 states. [2021-11-13 17:38:38,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5171 to 5078. [2021-11-13 17:38:38,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5078 states, 3428 states have (on average 1.2876312718786465) internal successors, (4414), 3615 states have internal predecessors, (4414), 1275 states have call successors, (1275), 333 states have call predecessors, (1275), 332 states have return successors, (1273), 1224 states have call predecessors, (1273), 1273 states have call successors, (1273) [2021-11-13 17:38:38,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5078 states to 5078 states and 6962 transitions. [2021-11-13 17:38:38,216 INFO L78 Accepts]: Start accepts. Automaton has 5078 states and 6962 transitions. Word has length 34 [2021-11-13 17:38:38,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:38:38,217 INFO L470 AbstractCegarLoop]: Abstraction has 5078 states and 6962 transitions. [2021-11-13 17:38:38,217 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.4) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-11-13 17:38:38,217 INFO L276 IsEmpty]: Start isEmpty. Operand 5078 states and 6962 transitions. [2021-11-13 17:38:38,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-11-13 17:38:38,221 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:38:38,222 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:38:38,222 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-13 17:38:38,222 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_usb_gadget__chrdev_registration_with_usb_gadgetErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_usb_gadget__class_registration_with_usb_gadgetErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 42 more)] === [2021-11-13 17:38:38,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:38:38,223 INFO L85 PathProgramCache]: Analyzing trace with hash 212241193, now seen corresponding path program 1 times [2021-11-13 17:38:38,223 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:38:38,223 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [589148460] [2021-11-13 17:38:38,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:38:38,224 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:38:38,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:38:38,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-13 17:38:38,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:38:38,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-11-13 17:38:38,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:38:38,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:38:38,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:38:38,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 17:38:38,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:38:38,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-11-13 17:38:38,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:38:38,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:38:38,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:38:38,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 17:38:38,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:38:38,649 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2021-11-13 17:38:38,649 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:38:38,649 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [589148460] [2021-11-13 17:38:38,649 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [589148460] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 17:38:38,650 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:38:38,650 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-13 17:38:38,650 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [681980668] [2021-11-13 17:38:38,650 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 17:38:38,651 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-13 17:38:38,652 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:38:38,652 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-13 17:38:38,652 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-13 17:38:38,653 INFO L87 Difference]: Start difference. First operand 5078 states and 6962 transitions. Second operand has 5 states, 5 states have (on average 5.2) internal successors, (26), 4 states have internal predecessors, (26), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2021-11-13 17:38:38,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:38:38,967 INFO L93 Difference]: Finished difference Result 5078 states and 6962 transitions. [2021-11-13 17:38:38,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-13 17:38:38,968 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 4 states have internal predecessors, (26), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 53 [2021-11-13 17:38:38,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:38:39,017 INFO L225 Difference]: With dead ends: 5078 [2021-11-13 17:38:39,017 INFO L226 Difference]: Without dead ends: 5076 [2021-11-13 17:38:39,022 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-13 17:38:39,023 INFO L933 BasicCegarLoop]: 3557 mSDtfsCounter, 3550 mSDsluCounter, 7111 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.16ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3551 SdHoareTripleChecker+Valid, 10668 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 41.68ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.92ms IncrementalHoareTripleChecker+Time [2021-11-13 17:38:39,024 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3551 Valid, 10668 Invalid, 14 Unknown, 0 Unchecked, 41.68ms Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 19.92ms Time] [2021-11-13 17:38:39,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5076 states. [2021-11-13 17:38:39,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5076 to 5076. [2021-11-13 17:38:39,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5076 states, 3427 states have (on average 1.2871316019842427) internal successors, (4411), 3613 states have internal predecessors, (4411), 1275 states have call successors, (1275), 333 states have call predecessors, (1275), 332 states have return successors, (1273), 1224 states have call predecessors, (1273), 1273 states have call successors, (1273) [2021-11-13 17:38:39,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5076 states to 5076 states and 6959 transitions. [2021-11-13 17:38:39,350 INFO L78 Accepts]: Start accepts. Automaton has 5076 states and 6959 transitions. Word has length 53 [2021-11-13 17:38:39,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:38:39,351 INFO L470 AbstractCegarLoop]: Abstraction has 5076 states and 6959 transitions. [2021-11-13 17:38:39,352 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 4 states have internal predecessors, (26), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2021-11-13 17:38:39,352 INFO L276 IsEmpty]: Start isEmpty. Operand 5076 states and 6959 transitions. [2021-11-13 17:38:39,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-11-13 17:38:39,355 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:38:39,355 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:38:39,356 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-13 17:38:39,356 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_linux_arch_io_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_usb_gadget__class_registration_with_usb_gadgetErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 42 more)] === [2021-11-13 17:38:39,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:38:39,357 INFO L85 PathProgramCache]: Analyzing trace with hash -1267847086, now seen corresponding path program 1 times [2021-11-13 17:38:39,357 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:38:39,357 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1140485230] [2021-11-13 17:38:39,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:38:39,358 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:38:39,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:38:39,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-13 17:38:39,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:38:39,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-13 17:38:39,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:38:39,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-13 17:38:39,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:38:39,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-11-13 17:38:39,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:38:39,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:38:39,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:38:39,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-13 17:38:39,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:38:39,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-11-13 17:38:39,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:38:39,807 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-13 17:38:39,807 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:38:39,807 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1140485230] [2021-11-13 17:38:39,808 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1140485230] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 17:38:39,808 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:38:39,808 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-13 17:38:39,808 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [836230707] [2021-11-13 17:38:39,809 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 17:38:39,809 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-13 17:38:39,809 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:38:39,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-13 17:38:39,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-13 17:38:39,811 INFO L87 Difference]: Start difference. First operand 5076 states and 6959 transitions. Second operand has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (8), 4 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-11-13 17:38:41,877 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:38:44,001 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:38:57,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:38:57,433 INFO L93 Difference]: Finished difference Result 5434 states and 7487 transitions. [2021-11-13 17:38:57,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-13 17:38:57,434 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (8), 4 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 52 [2021-11-13 17:38:57,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:38:57,483 INFO L225 Difference]: With dead ends: 5434 [2021-11-13 17:38:57,483 INFO L226 Difference]: Without dead ends: 5432 [2021-11-13 17:38:57,487 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2021-11-13 17:38:57,488 INFO L933 BasicCegarLoop]: 3094 mSDtfsCounter, 6650 mSDsluCounter, 1508 mSDsCounter, 0 mSdLazyCounter, 3676 mSolverCounterSat, 3595 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15154.41ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 6769 SdHoareTripleChecker+Valid, 4602 SdHoareTripleChecker+Invalid, 7273 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 97.15ms SdHoareTripleChecker+Time, 3595 IncrementalHoareTripleChecker+Valid, 3676 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16895.28ms IncrementalHoareTripleChecker+Time [2021-11-13 17:38:57,489 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6769 Valid, 4602 Invalid, 7273 Unknown, 0 Unchecked, 97.15ms Time], IncrementalHoareTripleChecker [3595 Valid, 3676 Invalid, 2 Unknown, 0 Unchecked, 16895.28ms Time] [2021-11-13 17:38:57,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5432 states. [2021-11-13 17:38:57,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5432 to 5074. [2021-11-13 17:38:57,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5074 states, 3426 states have (on average 1.2866316403969644) internal successors, (4408), 3611 states have internal predecessors, (4408), 1275 states have call successors, (1275), 333 states have call predecessors, (1275), 332 states have return successors, (1273), 1224 states have call predecessors, (1273), 1273 states have call successors, (1273) [2021-11-13 17:38:57,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5074 states to 5074 states and 6956 transitions. [2021-11-13 17:38:57,877 INFO L78 Accepts]: Start accepts. Automaton has 5074 states and 6956 transitions. Word has length 52 [2021-11-13 17:38:57,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:38:57,880 INFO L470 AbstractCegarLoop]: Abstraction has 5074 states and 6956 transitions. [2021-11-13 17:38:57,881 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (8), 4 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-11-13 17:38:57,881 INFO L276 IsEmpty]: Start isEmpty. Operand 5074 states and 6956 transitions. [2021-11-13 17:38:57,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-11-13 17:38:57,892 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:38:57,892 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:38:57,892 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-13 17:38:57,893 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_linux_block_genhd_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_usb_gadget__class_registration_with_usb_gadgetErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 42 more)] === [2021-11-13 17:38:57,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:38:57,893 INFO L85 PathProgramCache]: Analyzing trace with hash -397080487, now seen corresponding path program 1 times [2021-11-13 17:38:57,894 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:38:57,894 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1993829097] [2021-11-13 17:38:57,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:38:57,894 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:38:58,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:38:58,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-13 17:38:58,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:38:58,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-13 17:38:58,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:38:58,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-13 17:38:58,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:38:58,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-11-13 17:38:58,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:38:58,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:38:58,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:38:58,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-13 17:38:58,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:38:58,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-11-13 17:38:58,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:38:58,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2021-11-13 17:38:58,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:38:58,357 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-13 17:38:58,357 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:38:58,357 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1993829097] [2021-11-13 17:38:58,358 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1993829097] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 17:38:58,358 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:38:58,358 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-13 17:38:58,358 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [679042322] [2021-11-13 17:38:58,358 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 17:38:58,359 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-13 17:38:58,359 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:38:58,360 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-13 17:38:58,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-13 17:38:58,361 INFO L87 Difference]: Start difference. First operand 5074 states and 6956 transitions. Second operand has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (9), 4 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2021-11-13 17:39:00,416 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:39:02,544 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:39:13,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:39:13,429 INFO L93 Difference]: Finished difference Result 5432 states and 7484 transitions. [2021-11-13 17:39:13,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-13 17:39:13,430 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (9), 4 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 58 [2021-11-13 17:39:13,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:39:13,480 INFO L225 Difference]: With dead ends: 5432 [2021-11-13 17:39:13,480 INFO L226 Difference]: Without dead ends: 5430 [2021-11-13 17:39:13,485 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2021-11-13 17:39:13,486 INFO L933 BasicCegarLoop]: 3134 mSDtfsCounter, 6566 mSDsluCounter, 1511 mSDsCounter, 0 mSdLazyCounter, 3713 mSolverCounterSat, 3586 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12789.57ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 6684 SdHoareTripleChecker+Valid, 4645 SdHoareTripleChecker+Invalid, 7301 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 68.99ms SdHoareTripleChecker+Time, 3586 IncrementalHoareTripleChecker+Valid, 3713 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14526.06ms IncrementalHoareTripleChecker+Time [2021-11-13 17:39:13,486 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6684 Valid, 4645 Invalid, 7301 Unknown, 0 Unchecked, 68.99ms Time], IncrementalHoareTripleChecker [3586 Valid, 3713 Invalid, 2 Unknown, 0 Unchecked, 14526.06ms Time] [2021-11-13 17:39:13,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5430 states. [2021-11-13 17:39:13,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5430 to 5072. [2021-11-13 17:39:13,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5072 states, 3425 states have (on average 1.2861313868613138) internal successors, (4405), 3609 states have internal predecessors, (4405), 1275 states have call successors, (1275), 333 states have call predecessors, (1275), 332 states have return successors, (1273), 1224 states have call predecessors, (1273), 1273 states have call successors, (1273) [2021-11-13 17:39:13,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5072 states to 5072 states and 6953 transitions. [2021-11-13 17:39:13,859 INFO L78 Accepts]: Start accepts. Automaton has 5072 states and 6953 transitions. Word has length 58 [2021-11-13 17:39:13,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:39:13,860 INFO L470 AbstractCegarLoop]: Abstraction has 5072 states and 6953 transitions. [2021-11-13 17:39:13,860 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (9), 4 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2021-11-13 17:39:13,861 INFO L276 IsEmpty]: Start isEmpty. Operand 5072 states and 6953 transitions. [2021-11-13 17:39:13,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2021-11-13 17:39:13,863 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:39:13,864 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:39:13,864 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-13 17:39:13,864 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_linux_block_queue_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_usb_gadget__class_registration_with_usb_gadgetErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 42 more)] === [2021-11-13 17:39:13,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:39:13,865 INFO L85 PathProgramCache]: Analyzing trace with hash -1434544736, now seen corresponding path program 1 times [2021-11-13 17:39:13,865 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:39:13,865 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [513411865] [2021-11-13 17:39:13,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:39:13,866 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:39:13,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:39:14,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-13 17:39:14,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:39:14,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-13 17:39:14,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:39:14,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-13 17:39:14,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:39:14,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-11-13 17:39:14,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:39:14,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:39:14,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:39:14,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-13 17:39:14,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:39:14,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-11-13 17:39:14,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:39:14,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2021-11-13 17:39:14,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:39:14,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2021-11-13 17:39:14,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:39:14,368 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-13 17:39:14,368 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:39:14,369 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [513411865] [2021-11-13 17:39:14,369 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [513411865] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 17:39:14,369 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:39:14,369 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-13 17:39:14,370 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1058853042] [2021-11-13 17:39:14,370 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 17:39:14,371 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-13 17:39:14,372 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:39:14,372 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-13 17:39:14,372 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-13 17:39:14,373 INFO L87 Difference]: Start difference. First operand 5072 states and 6953 transitions. Second operand has 6 states, 6 states have (on average 6.5) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (10), 4 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-11-13 17:39:16,427 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:39:18,559 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:39:29,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:39:29,227 INFO L93 Difference]: Finished difference Result 5430 states and 7481 transitions. [2021-11-13 17:39:29,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-13 17:39:29,228 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (10), 4 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 64 [2021-11-13 17:39:29,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:39:29,361 INFO L225 Difference]: With dead ends: 5430 [2021-11-13 17:39:29,362 INFO L226 Difference]: Without dead ends: 5428 [2021-11-13 17:39:29,365 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2021-11-13 17:39:29,366 INFO L933 BasicCegarLoop]: 3082 mSDtfsCounter, 6646 mSDsluCounter, 1504 mSDsCounter, 0 mSdLazyCounter, 3668 mSolverCounterSat, 3607 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12715.22ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 6763 SdHoareTripleChecker+Valid, 4586 SdHoareTripleChecker+Invalid, 7277 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 64.85ms SdHoareTripleChecker+Time, 3607 IncrementalHoareTripleChecker+Valid, 3668 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14365.64ms IncrementalHoareTripleChecker+Time [2021-11-13 17:39:29,366 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6763 Valid, 4586 Invalid, 7277 Unknown, 0 Unchecked, 64.85ms Time], IncrementalHoareTripleChecker [3607 Valid, 3668 Invalid, 2 Unknown, 0 Unchecked, 14365.64ms Time] [2021-11-13 17:39:29,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5428 states. [2021-11-13 17:39:29,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5428 to 5070. [2021-11-13 17:39:29,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5070 states, 3424 states have (on average 1.2856308411214954) internal successors, (4402), 3607 states have internal predecessors, (4402), 1275 states have call successors, (1275), 333 states have call predecessors, (1275), 332 states have return successors, (1273), 1224 states have call predecessors, (1273), 1273 states have call successors, (1273) [2021-11-13 17:39:29,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5070 states to 5070 states and 6950 transitions. [2021-11-13 17:39:29,740 INFO L78 Accepts]: Start accepts. Automaton has 5070 states and 6950 transitions. Word has length 64 [2021-11-13 17:39:29,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:39:29,742 INFO L470 AbstractCegarLoop]: Abstraction has 5070 states and 6950 transitions. [2021-11-13 17:39:29,742 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (10), 4 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-11-13 17:39:29,742 INFO L276 IsEmpty]: Start isEmpty. Operand 5070 states and 6950 transitions. [2021-11-13 17:39:29,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-11-13 17:39:29,744 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:39:29,745 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:39:29,745 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-13 17:39:29,745 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_unregister_chrdev_159Err0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_usb_gadget__class_registration_with_usb_gadgetErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 42 more)] === [2021-11-13 17:39:29,746 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:39:29,746 INFO L85 PathProgramCache]: Analyzing trace with hash 516495216, now seen corresponding path program 1 times [2021-11-13 17:39:29,746 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:39:29,747 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1794699200] [2021-11-13 17:39:29,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:39:29,747 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:39:29,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:39:29,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-13 17:39:29,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:39:30,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-13 17:39:30,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:39:30,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-13 17:39:30,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:39:30,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-11-13 17:39:30,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:39:30,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:39:30,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:39:30,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-13 17:39:30,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:39:30,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-11-13 17:39:30,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:39:30,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-13 17:39:30,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:39:30,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2021-11-13 17:39:30,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:39:30,202 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-13 17:39:30,202 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:39:30,203 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1794699200] [2021-11-13 17:39:30,203 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1794699200] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 17:39:30,203 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:39:30,203 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-13 17:39:30,204 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1249018645] [2021-11-13 17:39:30,204 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 17:39:30,204 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-13 17:39:30,205 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:39:30,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-13 17:39:30,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-11-13 17:39:30,206 INFO L87 Difference]: Start difference. First operand 5070 states and 6950 transitions. Second operand has 8 states, 8 states have (on average 4.875) internal successors, (39), 5 states have internal predecessors, (39), 3 states have call successors, (10), 4 states have call predecessors, (10), 2 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) [2021-11-13 17:39:32,262 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:39:34,398 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:39:36,582 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:39:42,628 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:39:44,773 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:40:01,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:40:01,060 INFO L93 Difference]: Finished difference Result 6424 states and 8626 transitions. [2021-11-13 17:40:01,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-13 17:40:01,061 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.875) internal successors, (39), 5 states have internal predecessors, (39), 3 states have call successors, (10), 4 states have call predecessors, (10), 2 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) Word has length 66 [2021-11-13 17:40:01,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:40:01,107 INFO L225 Difference]: With dead ends: 6424 [2021-11-13 17:40:01,107 INFO L226 Difference]: Without dead ends: 6215 [2021-11-13 17:40:01,112 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=58, Invalid=182, Unknown=0, NotChecked=0, Total=240 [2021-11-13 17:40:01,117 INFO L933 BasicCegarLoop]: 3161 mSDtfsCounter, 5067 mSDsluCounter, 4608 mSDsCounter, 0 mSdLazyCounter, 12117 mSolverCounterSat, 2726 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 27203.89ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 5186 SdHoareTripleChecker+Valid, 7769 SdHoareTripleChecker+Invalid, 14848 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 113.54ms SdHoareTripleChecker+Time, 2726 IncrementalHoareTripleChecker+Valid, 12117 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 30175.07ms IncrementalHoareTripleChecker+Time [2021-11-13 17:40:01,118 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5186 Valid, 7769 Invalid, 14848 Unknown, 0 Unchecked, 113.54ms Time], IncrementalHoareTripleChecker [2726 Valid, 12117 Invalid, 5 Unknown, 0 Unchecked, 30175.07ms Time] [2021-11-13 17:40:01,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6215 states. [2021-11-13 17:40:01,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6215 to 5448. [2021-11-13 17:40:01,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5448 states, 3683 states have (on average 1.2766766223187618) internal successors, (4702), 3874 states have internal predecessors, (4702), 1357 states have call successors, (1357), 372 states have call predecessors, (1357), 369 states have return successors, (1355), 1299 states have call predecessors, (1355), 1355 states have call successors, (1355) [2021-11-13 17:40:01,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5448 states to 5448 states and 7414 transitions. [2021-11-13 17:40:01,513 INFO L78 Accepts]: Start accepts. Automaton has 5448 states and 7414 transitions. Word has length 66 [2021-11-13 17:40:01,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:40:01,514 INFO L470 AbstractCegarLoop]: Abstraction has 5448 states and 7414 transitions. [2021-11-13 17:40:01,514 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.875) internal successors, (39), 5 states have internal predecessors, (39), 3 states have call successors, (10), 4 states have call predecessors, (10), 2 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) [2021-11-13 17:40:01,515 INFO L276 IsEmpty]: Start isEmpty. Operand 5448 states and 7414 transitions. [2021-11-13 17:40:01,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2021-11-13 17:40:01,516 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:40:01,517 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:40:01,517 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-13 17:40:01,517 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_linux_block_request_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_usb_gadget__class_registration_with_usb_gadgetErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 42 more)] === [2021-11-13 17:40:01,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:40:01,518 INFO L85 PathProgramCache]: Analyzing trace with hash -297872605, now seen corresponding path program 1 times [2021-11-13 17:40:01,518 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:40:01,518 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1362145713] [2021-11-13 17:40:01,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:40:01,519 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:40:01,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:40:01,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-13 17:40:01,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:40:01,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-13 17:40:01,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:40:01,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-13 17:40:01,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:40:01,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-11-13 17:40:01,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:40:01,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:40:01,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:40:01,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-13 17:40:01,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:40:01,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-11-13 17:40:01,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:40:01,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2021-11-13 17:40:01,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:40:01,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2021-11-13 17:40:01,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:40:01,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-11-13 17:40:01,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:40:01,932 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-13 17:40:01,932 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:40:01,933 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1362145713] [2021-11-13 17:40:01,933 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1362145713] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 17:40:01,933 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:40:01,933 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-13 17:40:01,934 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1170021519] [2021-11-13 17:40:01,934 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 17:40:01,934 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-13 17:40:01,934 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:40:01,935 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-13 17:40:01,935 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-13 17:40:01,935 INFO L87 Difference]: Start difference. First operand 5448 states and 7414 transitions. Second operand has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (11), 4 states have call predecessors, (11), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2021-11-13 17:40:04,004 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:40:06,200 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.19s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:40:16,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:40:16,631 INFO L93 Difference]: Finished difference Result 5806 states and 7942 transitions. [2021-11-13 17:40:16,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-13 17:40:16,632 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (11), 4 states have call predecessors, (11), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 70 [2021-11-13 17:40:16,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:40:16,658 INFO L225 Difference]: With dead ends: 5806 [2021-11-13 17:40:16,658 INFO L226 Difference]: Without dead ends: 5804 [2021-11-13 17:40:16,661 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2021-11-13 17:40:16,662 INFO L933 BasicCegarLoop]: 3162 mSDtfsCounter, 6508 mSDsluCounter, 1520 mSDsCounter, 0 mSdLazyCounter, 3732 mSolverCounterSat, 3559 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12526.06ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 6624 SdHoareTripleChecker+Valid, 4682 SdHoareTripleChecker+Invalid, 7293 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 57.80ms SdHoareTripleChecker+Time, 3559 IncrementalHoareTripleChecker+Valid, 3732 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14228.62ms IncrementalHoareTripleChecker+Time [2021-11-13 17:40:16,663 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6624 Valid, 4682 Invalid, 7293 Unknown, 0 Unchecked, 57.80ms Time], IncrementalHoareTripleChecker [3559 Valid, 3732 Invalid, 2 Unknown, 0 Unchecked, 14228.62ms Time] [2021-11-13 17:40:16,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5804 states. [2021-11-13 17:40:17,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5804 to 5446. [2021-11-13 17:40:17,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5446 states, 3682 states have (on average 1.2762085822922324) internal successors, (4699), 3872 states have internal predecessors, (4699), 1357 states have call successors, (1357), 372 states have call predecessors, (1357), 369 states have return successors, (1355), 1299 states have call predecessors, (1355), 1355 states have call successors, (1355) [2021-11-13 17:40:17,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5446 states to 5446 states and 7411 transitions. [2021-11-13 17:40:17,040 INFO L78 Accepts]: Start accepts. Automaton has 5446 states and 7411 transitions. Word has length 70 [2021-11-13 17:40:17,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:40:17,042 INFO L470 AbstractCegarLoop]: Abstraction has 5446 states and 7411 transitions. [2021-11-13 17:40:17,043 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (11), 4 states have call predecessors, (11), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2021-11-13 17:40:17,043 INFO L276 IsEmpty]: Start isEmpty. Operand 5446 states and 7411 transitions. [2021-11-13 17:40:17,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2021-11-13 17:40:17,045 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:40:17,045 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:40:17,045 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-13 17:40:17,046 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_unregister_chrdev_159Err0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_usb_gadget__class_registration_with_usb_gadgetErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 42 more)] === [2021-11-13 17:40:17,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:40:17,046 INFO L85 PathProgramCache]: Analyzing trace with hash 1171577621, now seen corresponding path program 1 times [2021-11-13 17:40:17,047 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:40:17,047 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [571815631] [2021-11-13 17:40:17,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:40:17,047 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:40:17,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:40:17,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-13 17:40:17,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:40:17,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-13 17:40:17,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:40:17,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-13 17:40:17,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:40:17,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-11-13 17:40:17,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:40:17,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:40:17,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:40:17,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-13 17:40:17,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:40:17,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-11-13 17:40:17,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:40:17,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-13 17:40:17,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:40:17,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2021-11-13 17:40:17,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:40:17,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-11-13 17:40:17,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:40:17,529 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-11-13 17:40:17,529 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:40:17,530 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [571815631] [2021-11-13 17:40:17,530 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [571815631] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 17:40:17,530 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:40:17,530 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-13 17:40:17,531 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [165186452] [2021-11-13 17:40:17,531 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 17:40:17,532 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-13 17:40:17,532 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:40:17,533 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-13 17:40:17,533 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-11-13 17:40:17,533 INFO L87 Difference]: Start difference. First operand 5446 states and 7411 transitions. Second operand has 8 states, 8 states have (on average 5.375) internal successors, (43), 5 states have internal predecessors, (43), 3 states have call successors, (11), 4 states have call predecessors, (11), 2 states have return successors, (10), 3 states have call predecessors, (10), 2 states have call successors, (10) [2021-11-13 17:40:19,601 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:40:21,797 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.19s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:40:24,043 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.24s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:40:44,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:40:44,335 INFO L93 Difference]: Finished difference Result 6401 states and 8598 transitions. [2021-11-13 17:40:44,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-13 17:40:44,346 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.375) internal successors, (43), 5 states have internal predecessors, (43), 3 states have call successors, (11), 4 states have call predecessors, (11), 2 states have return successors, (10), 3 states have call predecessors, (10), 2 states have call successors, (10) Word has length 72 [2021-11-13 17:40:44,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:40:44,379 INFO L225 Difference]: With dead ends: 6401 [2021-11-13 17:40:44,379 INFO L226 Difference]: Without dead ends: 6194 [2021-11-13 17:40:44,384 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=58, Invalid=182, Unknown=0, NotChecked=0, Total=240 [2021-11-13 17:40:44,385 INFO L933 BasicCegarLoop]: 3197 mSDtfsCounter, 5014 mSDsluCounter, 4622 mSDsCounter, 0 mSdLazyCounter, 12254 mSolverCounterSat, 2717 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23071.53ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 5132 SdHoareTripleChecker+Valid, 7819 SdHoareTripleChecker+Invalid, 14974 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 109.07ms SdHoareTripleChecker+Time, 2717 IncrementalHoareTripleChecker+Valid, 12254 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 26032.15ms IncrementalHoareTripleChecker+Time [2021-11-13 17:40:44,385 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5132 Valid, 7819 Invalid, 14974 Unknown, 0 Unchecked, 109.07ms Time], IncrementalHoareTripleChecker [2717 Valid, 12254 Invalid, 3 Unknown, 0 Unchecked, 26032.15ms Time] [2021-11-13 17:40:44,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6194 states. [2021-11-13 17:40:44,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6194 to 5446. [2021-11-13 17:40:44,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5446 states, 3682 states have (on average 1.2759369907658882) internal successors, (4698), 3872 states have internal predecessors, (4698), 1357 states have call successors, (1357), 372 states have call predecessors, (1357), 369 states have return successors, (1355), 1299 states have call predecessors, (1355), 1355 states have call successors, (1355) [2021-11-13 17:40:44,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5446 states to 5446 states and 7410 transitions. [2021-11-13 17:40:44,844 INFO L78 Accepts]: Start accepts. Automaton has 5446 states and 7410 transitions. Word has length 72 [2021-11-13 17:40:44,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:40:44,845 INFO L470 AbstractCegarLoop]: Abstraction has 5446 states and 7410 transitions. [2021-11-13 17:40:44,845 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.375) internal successors, (43), 5 states have internal predecessors, (43), 3 states have call successors, (11), 4 states have call predecessors, (11), 2 states have return successors, (10), 3 states have call predecessors, (10), 2 states have call successors, (10) [2021-11-13 17:40:44,845 INFO L276 IsEmpty]: Start isEmpty. Operand 5446 states and 7410 transitions. [2021-11-13 17:40:44,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2021-11-13 17:40:44,852 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:40:44,852 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:40:44,853 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-13 17:40:44,853 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_unregister_chrdev_159Err0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_usb_gadget__class_registration_with_usb_gadgetErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 42 more)] === [2021-11-13 17:40:44,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:40:44,853 INFO L85 PathProgramCache]: Analyzing trace with hash -1348382313, now seen corresponding path program 1 times [2021-11-13 17:40:44,854 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:40:44,854 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1874114504] [2021-11-13 17:40:44,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:40:44,854 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:40:45,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:40:45,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-13 17:40:45,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:40:45,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-13 17:40:45,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:40:45,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-13 17:40:45,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:40:46,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-11-13 17:40:46,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:40:46,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:40:46,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:40:46,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-13 17:40:46,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:40:46,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-11-13 17:40:46,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:40:46,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-13 17:40:46,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:40:46,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2021-11-13 17:40:46,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:40:46,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-11-13 17:40:46,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:40:46,293 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-13 17:40:46,293 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:40:46,293 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1874114504] [2021-11-13 17:40:46,293 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1874114504] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 17:40:46,294 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:40:46,294 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2021-11-13 17:40:46,294 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [406914204] [2021-11-13 17:40:46,294 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 17:40:46,295 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2021-11-13 17:40:46,295 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:40:46,296 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-11-13 17:40:46,296 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2021-11-13 17:40:46,297 INFO L87 Difference]: Start difference. First operand 5446 states and 7410 transitions. Second operand has 17 states, 16 states have (on average 2.75) internal successors, (44), 14 states have internal predecessors, (44), 6 states have call successors, (11), 4 states have call predecessors, (11), 3 states have return successors, (10), 6 states have call predecessors, (10), 6 states have call successors, (10) [2021-11-13 17:40:48,360 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:40:50,533 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:41:00,356 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:41:02,468 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:41:04,581 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:41:06,728 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:41:08,864 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:41:48,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:41:48,839 INFO L93 Difference]: Finished difference Result 6585 states and 8863 transitions. [2021-11-13 17:41:48,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-11-13 17:41:48,839 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 2.75) internal successors, (44), 14 states have internal predecessors, (44), 6 states have call successors, (11), 4 states have call predecessors, (11), 3 states have return successors, (10), 6 states have call predecessors, (10), 6 states have call successors, (10) Word has length 72 [2021-11-13 17:41:48,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:41:48,946 INFO L225 Difference]: With dead ends: 6585 [2021-11-13 17:41:48,947 INFO L226 Difference]: Without dead ends: 5909 [2021-11-13 17:41:48,952 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=141, Invalid=729, Unknown=0, NotChecked=0, Total=870 [2021-11-13 17:41:48,953 INFO L933 BasicCegarLoop]: 3142 mSDtfsCounter, 4152 mSDsluCounter, 13717 mSDsCounter, 0 mSdLazyCounter, 36322 mSolverCounterSat, 2656 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 55300.59ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4218 SdHoareTripleChecker+Valid, 16859 SdHoareTripleChecker+Invalid, 38985 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 226.90ms SdHoareTripleChecker+Time, 2656 IncrementalHoareTripleChecker+Valid, 36322 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 61143.04ms IncrementalHoareTripleChecker+Time [2021-11-13 17:41:48,953 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4218 Valid, 16859 Invalid, 38985 Unknown, 0 Unchecked, 226.90ms Time], IncrementalHoareTripleChecker [2656 Valid, 36322 Invalid, 7 Unknown, 0 Unchecked, 61143.04ms Time] [2021-11-13 17:41:48,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5909 states. [2021-11-13 17:41:49,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5909 to 5498. [2021-11-13 17:41:49,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5498 states, 3716 states have (on average 1.2734122712594187) internal successors, (4732), 3904 states have internal predecessors, (4732), 1375 states have call successors, (1375), 372 states have call predecessors, (1375), 369 states have return successors, (1373), 1317 states have call predecessors, (1373), 1373 states have call successors, (1373) [2021-11-13 17:41:49,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5498 states to 5498 states and 7480 transitions. [2021-11-13 17:41:49,291 INFO L78 Accepts]: Start accepts. Automaton has 5498 states and 7480 transitions. Word has length 72 [2021-11-13 17:41:49,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:41:49,291 INFO L470 AbstractCegarLoop]: Abstraction has 5498 states and 7480 transitions. [2021-11-13 17:41:49,292 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 2.75) internal successors, (44), 14 states have internal predecessors, (44), 6 states have call successors, (11), 4 states have call predecessors, (11), 3 states have return successors, (10), 6 states have call predecessors, (10), 6 states have call successors, (10) [2021-11-13 17:41:49,292 INFO L276 IsEmpty]: Start isEmpty. Operand 5498 states and 7480 transitions. [2021-11-13 17:41:49,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2021-11-13 17:41:49,293 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:41:49,293 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:41:49,294 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-13 17:41:49,294 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_linux_drivers_base_class_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_usb_gadget__class_registration_with_usb_gadgetErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 42 more)] === [2021-11-13 17:41:49,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:41:49,294 INFO L85 PathProgramCache]: Analyzing trace with hash -836442807, now seen corresponding path program 1 times [2021-11-13 17:41:49,295 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:41:49,295 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1122928518] [2021-11-13 17:41:49,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:41:49,295 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:41:49,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:41:49,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-13 17:41:49,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:41:49,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-13 17:41:49,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:41:49,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-13 17:41:49,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:41:49,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-11-13 17:41:49,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:41:49,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:41:49,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:41:49,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-13 17:41:49,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:41:49,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-11-13 17:41:49,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:41:49,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2021-11-13 17:41:49,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:41:49,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2021-11-13 17:41:49,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:41:49,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-11-13 17:41:49,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:41:49,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-13 17:41:49,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:41:49,571 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-13 17:41:49,571 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:41:49,571 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1122928518] [2021-11-13 17:41:49,571 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1122928518] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 17:41:49,572 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:41:49,572 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-13 17:41:49,572 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [715836065] [2021-11-13 17:41:49,572 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 17:41:49,573 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-13 17:41:49,573 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:41:49,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-13 17:41:49,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-13 17:41:49,574 INFO L87 Difference]: Start difference. First operand 5498 states and 7480 transitions. Second operand has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (12), 4 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2021-11-13 17:41:51,627 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:41:53,807 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:42:04,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:42:04,070 INFO L93 Difference]: Finished difference Result 6888 states and 9203 transitions. [2021-11-13 17:42:04,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-13 17:42:04,070 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (12), 4 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 76 [2021-11-13 17:42:04,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:42:04,098 INFO L225 Difference]: With dead ends: 6888 [2021-11-13 17:42:04,099 INFO L226 Difference]: Without dead ends: 6886 [2021-11-13 17:42:04,103 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2021-11-13 17:42:04,104 INFO L933 BasicCegarLoop]: 3407 mSDtfsCounter, 6810 mSDsluCounter, 2040 mSDsCounter, 0 mSdLazyCounter, 4218 mSolverCounterSat, 3668 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12355.78ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 6925 SdHoareTripleChecker+Valid, 5447 SdHoareTripleChecker+Invalid, 7888 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 51.04ms SdHoareTripleChecker+Time, 3668 IncrementalHoareTripleChecker+Valid, 4218 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14013.79ms IncrementalHoareTripleChecker+Time [2021-11-13 17:42:04,104 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6925 Valid, 5447 Invalid, 7888 Unknown, 0 Unchecked, 51.04ms Time], IncrementalHoareTripleChecker [3668 Valid, 4218 Invalid, 2 Unknown, 0 Unchecked, 14013.79ms Time] [2021-11-13 17:42:04,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6886 states. [2021-11-13 17:42:04,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6886 to 6261. [2021-11-13 17:42:04,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6261 states, 4240 states have (on average 1.255188679245283) internal successors, (5322), 4440 states have internal predecessors, (5322), 1530 states have call successors, (1530), 458 states have call predecessors, (1530), 453 states have return successors, (1528), 1462 states have call predecessors, (1528), 1528 states have call successors, (1528) [2021-11-13 17:42:04,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6261 states to 6261 states and 8380 transitions. [2021-11-13 17:42:04,505 INFO L78 Accepts]: Start accepts. Automaton has 6261 states and 8380 transitions. Word has length 76 [2021-11-13 17:42:04,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:42:04,505 INFO L470 AbstractCegarLoop]: Abstraction has 6261 states and 8380 transitions. [2021-11-13 17:42:04,506 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (12), 4 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2021-11-13 17:42:04,506 INFO L276 IsEmpty]: Start isEmpty. Operand 6261 states and 8380 transitions. [2021-11-13 17:42:04,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2021-11-13 17:42:04,508 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:42:04,509 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:42:04,509 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-13 17:42:04,509 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_linux_fs_char_dev_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_usb_gadget__class_registration_with_usb_gadgetErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 42 more)] === [2021-11-13 17:42:04,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:42:04,510 INFO L85 PathProgramCache]: Analyzing trace with hash 533096260, now seen corresponding path program 1 times [2021-11-13 17:42:04,510 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:42:04,510 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1549332670] [2021-11-13 17:42:04,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:42:04,511 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:42:04,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:42:04,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-13 17:42:04,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:42:04,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-13 17:42:04,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:42:04,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-13 17:42:04,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:42:04,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-11-13 17:42:04,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:42:04,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:42:04,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:42:04,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-13 17:42:04,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:42:04,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-11-13 17:42:04,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:42:04,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2021-11-13 17:42:04,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:42:04,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2021-11-13 17:42:04,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:42:04,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-11-13 17:42:04,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:42:04,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-13 17:42:04,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:42:04,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-11-13 17:42:04,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:42:04,845 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-13 17:42:04,846 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:42:04,846 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1549332670] [2021-11-13 17:42:04,846 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1549332670] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 17:42:04,846 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:42:04,846 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-13 17:42:04,847 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [137890302] [2021-11-13 17:42:04,847 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 17:42:04,847 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-13 17:42:04,847 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:42:04,848 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-13 17:42:04,848 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-13 17:42:04,848 INFO L87 Difference]: Start difference. First operand 6261 states and 8380 transitions. Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (13), 4 states have call predecessors, (13), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-11-13 17:42:06,902 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:42:09,129 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.23s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:42:26,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:42:26,485 INFO L93 Difference]: Finished difference Result 6783 states and 9055 transitions. [2021-11-13 17:42:26,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-13 17:42:26,485 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (13), 4 states have call predecessors, (13), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 82 [2021-11-13 17:42:26,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:42:26,518 INFO L225 Difference]: With dead ends: 6783 [2021-11-13 17:42:26,518 INFO L226 Difference]: Without dead ends: 6781 [2021-11-13 17:42:26,523 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2021-11-13 17:42:26,524 INFO L933 BasicCegarLoop]: 3182 mSDtfsCounter, 10729 mSDsluCounter, 2550 mSDsCounter, 0 mSdLazyCounter, 7690 mSolverCounterSat, 5957 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18186.99ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 10885 SdHoareTripleChecker+Valid, 5732 SdHoareTripleChecker+Invalid, 13649 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 85.71ms SdHoareTripleChecker+Time, 5957 IncrementalHoareTripleChecker+Valid, 7690 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20982.61ms IncrementalHoareTripleChecker+Time [2021-11-13 17:42:26,524 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10885 Valid, 5732 Invalid, 13649 Unknown, 0 Unchecked, 85.71ms Time], IncrementalHoareTripleChecker [5957 Valid, 7690 Invalid, 2 Unknown, 0 Unchecked, 20982.61ms Time] [2021-11-13 17:42:26,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6781 states. [2021-11-13 17:42:27,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6781 to 6261. [2021-11-13 17:42:27,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6261 states, 4240 states have (on average 1.2549528301886792) internal successors, (5321), 4440 states have internal predecessors, (5321), 1530 states have call successors, (1530), 458 states have call predecessors, (1530), 453 states have return successors, (1528), 1462 states have call predecessors, (1528), 1528 states have call successors, (1528) [2021-11-13 17:42:27,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6261 states to 6261 states and 8379 transitions. [2021-11-13 17:42:27,063 INFO L78 Accepts]: Start accepts. Automaton has 6261 states and 8379 transitions. Word has length 82 [2021-11-13 17:42:27,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:42:27,064 INFO L470 AbstractCegarLoop]: Abstraction has 6261 states and 8379 transitions. [2021-11-13 17:42:27,064 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (13), 4 states have call predecessors, (13), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-11-13 17:42:27,065 INFO L276 IsEmpty]: Start isEmpty. Operand 6261 states and 8379 transitions. [2021-11-13 17:42:27,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-11-13 17:42:27,066 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:42:27,067 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:42:27,067 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-13 17:42:27,067 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_usb_gadget__class_registration_with_usb_gadgetErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 42 more)] === [2021-11-13 17:42:27,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:42:27,068 INFO L85 PathProgramCache]: Analyzing trace with hash -1785521828, now seen corresponding path program 1 times [2021-11-13 17:42:27,068 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:42:27,068 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [860622712] [2021-11-13 17:42:27,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:42:27,068 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:42:27,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:42:27,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-13 17:42:27,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:42:27,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-13 17:42:27,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:42:27,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-13 17:42:27,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:42:27,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-11-13 17:42:27,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:42:27,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:42:27,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:42:27,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-13 17:42:27,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:42:27,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-11-13 17:42:27,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:42:27,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2021-11-13 17:42:27,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:42:27,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2021-11-13 17:42:27,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:42:27,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-11-13 17:42:27,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:42:27,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-13 17:42:27,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:42:27,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-11-13 17:42:27,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:42:27,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-11-13 17:42:27,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:42:27,420 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-13 17:42:27,421 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:42:27,421 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [860622712] [2021-11-13 17:42:27,421 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [860622712] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 17:42:27,421 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:42:27,421 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-13 17:42:27,422 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [112966624] [2021-11-13 17:42:27,422 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 17:42:27,422 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-13 17:42:27,422 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:42:27,423 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-13 17:42:27,423 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-13 17:42:27,424 INFO L87 Difference]: Start difference. First operand 6261 states and 8379 transitions. Second operand has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (14), 4 states have call predecessors, (14), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2021-11-13 17:42:29,478 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:42:31,672 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.19s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:42:41,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:42:41,302 INFO L93 Difference]: Finished difference Result 6619 states and 8907 transitions. [2021-11-13 17:42:41,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-13 17:42:41,303 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (14), 4 states have call predecessors, (14), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 88 [2021-11-13 17:42:41,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:42:41,329 INFO L225 Difference]: With dead ends: 6619 [2021-11-13 17:42:41,329 INFO L226 Difference]: Without dead ends: 6617 [2021-11-13 17:42:41,333 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2021-11-13 17:42:41,333 INFO L933 BasicCegarLoop]: 3177 mSDtfsCounter, 6472 mSDsluCounter, 1522 mSDsCounter, 0 mSdLazyCounter, 3745 mSolverCounterSat, 3553 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11702.35ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 6585 SdHoareTripleChecker+Valid, 4699 SdHoareTripleChecker+Invalid, 7300 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 46.77ms SdHoareTripleChecker+Time, 3553 IncrementalHoareTripleChecker+Valid, 3745 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13406.12ms IncrementalHoareTripleChecker+Time [2021-11-13 17:42:41,334 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6585 Valid, 4699 Invalid, 7300 Unknown, 0 Unchecked, 46.77ms Time], IncrementalHoareTripleChecker [3553 Valid, 3745 Invalid, 2 Unknown, 0 Unchecked, 13406.12ms Time] [2021-11-13 17:42:41,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6617 states. [2021-11-13 17:42:41,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6617 to 6259. [2021-11-13 17:42:41,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6259 states, 4239 states have (on average 1.254541165369191) internal successors, (5318), 4438 states have internal predecessors, (5318), 1530 states have call successors, (1530), 458 states have call predecessors, (1530), 453 states have return successors, (1528), 1462 states have call predecessors, (1528), 1528 states have call successors, (1528) [2021-11-13 17:42:41,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6259 states to 6259 states and 8376 transitions. [2021-11-13 17:42:41,730 INFO L78 Accepts]: Start accepts. Automaton has 6259 states and 8376 transitions. Word has length 88 [2021-11-13 17:42:41,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:42:41,730 INFO L470 AbstractCegarLoop]: Abstraction has 6259 states and 8376 transitions. [2021-11-13 17:42:41,730 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (14), 4 states have call predecessors, (14), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2021-11-13 17:42:41,731 INFO L276 IsEmpty]: Start isEmpty. Operand 6259 states and 8376 transitions. [2021-11-13 17:42:41,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-11-13 17:42:41,733 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:42:41,734 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:42:41,734 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-11-13 17:42:41,734 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_linux_kernel_locking_rwlock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_usb_gadget__class_registration_with_usb_gadgetErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 42 more)] === [2021-11-13 17:42:41,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:42:41,735 INFO L85 PathProgramCache]: Analyzing trace with hash 506514332, now seen corresponding path program 1 times [2021-11-13 17:42:41,735 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:42:41,735 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [977447551] [2021-11-13 17:42:41,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:42:41,735 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:42:41,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:42:41,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-13 17:42:41,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:42:41,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-13 17:42:41,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:42:41,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-13 17:42:41,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:42:41,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-11-13 17:42:41,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:42:41,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:42:41,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:42:41,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-13 17:42:41,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:42:41,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-11-13 17:42:41,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:42:41,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2021-11-13 17:42:41,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:42:41,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2021-11-13 17:42:41,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:42:41,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-11-13 17:42:41,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:42:42,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-13 17:42:42,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:42:42,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-11-13 17:42:42,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:42:42,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-11-13 17:42:42,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:42:42,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-11-13 17:42:42,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:42:42,054 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-13 17:42:42,055 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:42:42,055 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [977447551] [2021-11-13 17:42:42,055 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [977447551] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 17:42:42,055 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:42:42,055 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-13 17:42:42,056 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [715100155] [2021-11-13 17:42:42,056 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 17:42:42,056 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-13 17:42:42,056 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:42:42,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-13 17:42:42,057 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-13 17:42:42,057 INFO L87 Difference]: Start difference. First operand 6259 states and 8376 transitions. Second operand has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (15), 4 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-11-13 17:42:44,117 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:42:46,340 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.22s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:43:04,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:43:04,123 INFO L93 Difference]: Finished difference Result 11740 states and 15862 transitions. [2021-11-13 17:43:04,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-13 17:43:04,124 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (15), 4 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 94 [2021-11-13 17:43:04,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:43:04,174 INFO L225 Difference]: With dead ends: 11740 [2021-11-13 17:43:04,174 INFO L226 Difference]: Without dead ends: 11738 [2021-11-13 17:43:04,181 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2021-11-13 17:43:04,182 INFO L933 BasicCegarLoop]: 3223 mSDtfsCounter, 9648 mSDsluCounter, 2588 mSDsCounter, 0 mSdLazyCounter, 7626 mSolverCounterSat, 5530 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18262.98ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 9801 SdHoareTripleChecker+Valid, 5811 SdHoareTripleChecker+Invalid, 13158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 81.22ms SdHoareTripleChecker+Time, 5530 IncrementalHoareTripleChecker+Valid, 7626 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21174.00ms IncrementalHoareTripleChecker+Time [2021-11-13 17:43:04,183 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9801 Valid, 5811 Invalid, 13158 Unknown, 0 Unchecked, 81.22ms Time], IncrementalHoareTripleChecker [5530 Valid, 7626 Invalid, 2 Unknown, 0 Unchecked, 21174.00ms Time] [2021-11-13 17:43:04,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11738 states. [2021-11-13 17:43:04,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11738 to 10787. [2021-11-13 17:43:04,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10787 states, 7300 states have (on average 1.2536986301369863) internal successors, (9152), 7597 states have internal predecessors, (9152), 2658 states have call successors, (2658), 797 states have call predecessors, (2658), 792 states have return successors, (2736), 2554 states have call predecessors, (2736), 2656 states have call successors, (2736) [2021-11-13 17:43:04,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10787 states to 10787 states and 14546 transitions. [2021-11-13 17:43:04,962 INFO L78 Accepts]: Start accepts. Automaton has 10787 states and 14546 transitions. Word has length 94 [2021-11-13 17:43:04,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:43:04,963 INFO L470 AbstractCegarLoop]: Abstraction has 10787 states and 14546 transitions. [2021-11-13 17:43:04,963 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (15), 4 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-11-13 17:43:04,963 INFO L276 IsEmpty]: Start isEmpty. Operand 10787 states and 14546 transitions. [2021-11-13 17:43:04,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2021-11-13 17:43:04,966 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:43:04,966 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 4, 4, 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] [2021-11-13 17:43:04,966 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-11-13 17:43:04,967 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_assert_linux_drivers_base_class__double_registrationErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_usb_gadget__class_registration_with_usb_gadgetErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 42 more)] === [2021-11-13 17:43:04,967 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:43:04,967 INFO L85 PathProgramCache]: Analyzing trace with hash 1805823700, now seen corresponding path program 1 times [2021-11-13 17:43:04,967 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:43:04,967 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1308427822] [2021-11-13 17:43:04,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:43:04,968 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:43:05,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:43:05,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-13 17:43:05,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:43:05,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-11-13 17:43:05,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:43:05,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:43:05,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:43:05,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 17:43:05,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:43:05,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-11-13 17:43:05,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:43:05,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:43:05,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:43:05,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 17:43:05,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:43:05,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-11-13 17:43:05,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:43:05,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-13 17:43:05,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:43:05,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-11-13 17:43:05,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:43:05,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-11-13 17:43:05,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:43:05,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:43:05,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:43:05,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-11-13 17:43:05,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:43:05,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-11-13 17:43:05,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:43:05,287 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2021-11-13 17:43:05,287 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:43:05,287 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1308427822] [2021-11-13 17:43:05,287 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1308427822] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 17:43:05,288 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:43:05,288 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-13 17:43:05,288 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [298687597] [2021-11-13 17:43:05,288 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 17:43:05,289 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-13 17:43:05,289 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:43:05,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-13 17:43:05,289 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-13 17:43:05,290 INFO L87 Difference]: Start difference. First operand 10787 states and 14546 transitions. Second operand has 6 states, 6 states have (on average 7.5) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-11-13 17:43:07,375 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:43:15,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:43:15,174 INFO L93 Difference]: Finished difference Result 12692 states and 17641 transitions. [2021-11-13 17:43:15,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-13 17:43:15,175 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (13), 3 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 99 [2021-11-13 17:43:15,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:43:15,222 INFO L225 Difference]: With dead ends: 12692 [2021-11-13 17:43:15,223 INFO L226 Difference]: Without dead ends: 12690 [2021-11-13 17:43:15,229 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-11-13 17:43:15,230 INFO L933 BasicCegarLoop]: 3677 mSDtfsCounter, 4845 mSDsluCounter, 7793 mSDsCounter, 0 mSdLazyCounter, 3166 mSolverCounterSat, 1681 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7801.84ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 5275 SdHoareTripleChecker+Valid, 11470 SdHoareTripleChecker+Invalid, 4848 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 59.99ms SdHoareTripleChecker+Time, 1681 IncrementalHoareTripleChecker+Valid, 3166 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9089.64ms IncrementalHoareTripleChecker+Time [2021-11-13 17:43:15,230 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5275 Valid, 11470 Invalid, 4848 Unknown, 0 Unchecked, 59.99ms Time], IncrementalHoareTripleChecker [1681 Valid, 3166 Invalid, 1 Unknown, 0 Unchecked, 9089.64ms Time] [2021-11-13 17:43:15,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12690 states. [2021-11-13 17:43:15,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12690 to 10887. [2021-11-13 17:43:15,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10887 states, 7361 states have (on average 1.2513245482950686) internal successors, (9211), 7665 states have internal predecessors, (9211), 2684 states have call successors, (2684), 797 states have call predecessors, (2684), 806 states have return successors, (2812), 2588 states have call predecessors, (2812), 2682 states have call successors, (2812) [2021-11-13 17:43:15,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10887 states to 10887 states and 14707 transitions. [2021-11-13 17:43:15,906 INFO L78 Accepts]: Start accepts. Automaton has 10887 states and 14707 transitions. Word has length 99 [2021-11-13 17:43:15,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:43:15,906 INFO L470 AbstractCegarLoop]: Abstraction has 10887 states and 14707 transitions. [2021-11-13 17:43:15,906 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-11-13 17:43:15,906 INFO L276 IsEmpty]: Start isEmpty. Operand 10887 states and 14707 transitions. [2021-11-13 17:43:15,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-11-13 17:43:15,908 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:43:15,908 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:43:15,908 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-11-13 17:43:15,908 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_linux_kernel_locking_rwlock_check_final_stateErr1ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_usb_gadget__class_registration_with_usb_gadgetErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 42 more)] === [2021-11-13 17:43:15,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:43:15,909 INFO L85 PathProgramCache]: Analyzing trace with hash 1429128735, now seen corresponding path program 1 times [2021-11-13 17:43:15,909 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:43:15,909 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [222628557] [2021-11-13 17:43:15,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:43:15,910 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:43:15,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:43:16,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-13 17:43:16,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:43:16,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-13 17:43:16,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:43:16,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-13 17:43:16,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:43:16,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-11-13 17:43:16,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:43:16,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:43:16,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:43:16,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-13 17:43:16,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:43:16,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-11-13 17:43:16,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:43:16,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2021-11-13 17:43:16,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:43:16,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2021-11-13 17:43:16,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:43:16,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-11-13 17:43:16,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:43:16,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-13 17:43:16,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:43:16,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-11-13 17:43:16,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:43:16,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-11-13 17:43:16,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:43:16,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-11-13 17:43:16,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:43:16,301 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-13 17:43:16,301 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:43:16,301 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [222628557] [2021-11-13 17:43:16,302 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [222628557] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 17:43:16,302 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:43:16,302 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-13 17:43:16,302 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1774340209] [2021-11-13 17:43:16,302 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 17:43:16,303 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-13 17:43:16,303 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:43:16,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-13 17:43:16,303 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-13 17:43:16,304 INFO L87 Difference]: Start difference. First operand 10887 states and 14707 transitions. Second operand has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (15), 4 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-11-13 17:43:18,358 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:43:20,550 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.19s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:43:31,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:43:31,598 INFO L93 Difference]: Finished difference Result 11843 states and 16029 transitions. [2021-11-13 17:43:31,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-13 17:43:31,598 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (15), 4 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 96 [2021-11-13 17:43:31,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:43:31,647 INFO L225 Difference]: With dead ends: 11843 [2021-11-13 17:43:31,648 INFO L226 Difference]: Without dead ends: 11841 [2021-11-13 17:43:31,654 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-11-13 17:43:31,655 INFO L933 BasicCegarLoop]: 3081 mSDtfsCounter, 6669 mSDsluCounter, 1528 mSDsCounter, 0 mSdLazyCounter, 3771 mSolverCounterSat, 3633 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12539.96ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 6776 SdHoareTripleChecker+Valid, 4609 SdHoareTripleChecker+Invalid, 7406 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 50.18ms SdHoareTripleChecker+Time, 3633 IncrementalHoareTripleChecker+Valid, 3771 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14541.89ms IncrementalHoareTripleChecker+Time [2021-11-13 17:43:31,655 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6776 Valid, 4609 Invalid, 7406 Unknown, 0 Unchecked, 50.18ms Time], IncrementalHoareTripleChecker [3633 Valid, 3771 Invalid, 2 Unknown, 0 Unchecked, 14541.89ms Time] [2021-11-13 17:43:31,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11841 states. [2021-11-13 17:43:32,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11841 to 11121. [2021-11-13 17:43:32,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11121 states, 7504 states have (on average 1.2470682302771856) internal successors, (9358), 7807 states have internal predecessors, (9358), 2732 states have call successors, (2732), 841 states have call predecessors, (2732), 850 states have return successors, (2860), 2636 states have call predecessors, (2860), 2730 states have call successors, (2860) [2021-11-13 17:43:32,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11121 states to 11121 states and 14950 transitions. [2021-11-13 17:43:32,424 INFO L78 Accepts]: Start accepts. Automaton has 11121 states and 14950 transitions. Word has length 96 [2021-11-13 17:43:32,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:43:32,425 INFO L470 AbstractCegarLoop]: Abstraction has 11121 states and 14950 transitions. [2021-11-13 17:43:32,425 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (15), 4 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-11-13 17:43:32,425 INFO L276 IsEmpty]: Start isEmpty. Operand 11121 states and 14950 transitions. [2021-11-13 17:43:32,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2021-11-13 17:43:32,427 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:43:32,428 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:43:32,428 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-11-13 17:43:32,428 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_linux_kernel_module_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_usb_gadget__class_registration_with_usb_gadgetErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 42 more)] === [2021-11-13 17:43:32,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:43:32,428 INFO L85 PathProgramCache]: Analyzing trace with hash 1773944718, now seen corresponding path program 1 times [2021-11-13 17:43:32,429 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:43:32,429 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1525232537] [2021-11-13 17:43:32,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:43:32,429 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:43:32,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:43:32,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-13 17:43:32,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:43:32,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-13 17:43:32,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:43:32,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-13 17:43:32,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:43:32,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-11-13 17:43:32,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:43:32,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:43:32,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:43:32,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-13 17:43:32,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:43:32,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-11-13 17:43:32,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:43:32,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2021-11-13 17:43:32,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:43:32,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2021-11-13 17:43:32,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:43:32,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-11-13 17:43:32,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:43:32,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-13 17:43:32,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:43:32,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-11-13 17:43:32,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:43:32,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-11-13 17:43:32,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:43:32,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-11-13 17:43:32,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:43:32,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2021-11-13 17:43:32,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:43:32,751 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-13 17:43:32,752 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:43:32,752 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1525232537] [2021-11-13 17:43:32,754 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1525232537] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 17:43:32,754 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:43:32,755 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-13 17:43:32,755 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1136193866] [2021-11-13 17:43:32,755 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 17:43:32,755 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-13 17:43:32,756 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:43:32,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-13 17:43:32,756 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-13 17:43:32,756 INFO L87 Difference]: Start difference. First operand 11121 states and 14950 transitions. Second operand has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 4 states have internal predecessors, (65), 2 states have call successors, (16), 4 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2021-11-13 17:43:34,817 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:43:37,051 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.23s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:43:57,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:43:57,980 INFO L93 Difference]: Finished difference Result 22844 states and 31307 transitions. [2021-11-13 17:43:57,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-13 17:43:57,981 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 4 states have internal predecessors, (65), 2 states have call successors, (16), 4 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 102 [2021-11-13 17:43:57,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:43:58,059 INFO L225 Difference]: With dead ends: 22844 [2021-11-13 17:43:58,059 INFO L226 Difference]: Without dead ends: 22842 [2021-11-13 17:43:58,068 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2021-11-13 17:43:58,069 INFO L933 BasicCegarLoop]: 3270 mSDtfsCounter, 10564 mSDsluCounter, 2601 mSDsCounter, 0 mSdLazyCounter, 7823 mSolverCounterSat, 6019 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20375.36ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 10716 SdHoareTripleChecker+Valid, 5871 SdHoareTripleChecker+Invalid, 13844 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 90.71ms SdHoareTripleChecker+Time, 6019 IncrementalHoareTripleChecker+Valid, 7823 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 23705.90ms IncrementalHoareTripleChecker+Time [2021-11-13 17:43:58,069 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10716 Valid, 5871 Invalid, 13844 Unknown, 0 Unchecked, 90.71ms Time], IncrementalHoareTripleChecker [6019 Valid, 7823 Invalid, 2 Unknown, 0 Unchecked, 23705.90ms Time] [2021-11-13 17:43:58,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22842 states. [2021-11-13 17:43:59,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22842 to 21194. [2021-11-13 17:43:59,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21194 states, 14318 states have (on average 1.2515714485263305) internal successors, (17920), 14871 states have internal predecessors, (17920), 5237 states have call successors, (5237), 1581 states have call predecessors, (5237), 1604 states have return successors, (5753), 5059 states have call predecessors, (5753), 5235 states have call successors, (5753) [2021-11-13 17:43:59,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21194 states to 21194 states and 28910 transitions. [2021-11-13 17:43:59,544 INFO L78 Accepts]: Start accepts. Automaton has 21194 states and 28910 transitions. Word has length 102 [2021-11-13 17:43:59,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:43:59,545 INFO L470 AbstractCegarLoop]: Abstraction has 21194 states and 28910 transitions. [2021-11-13 17:43:59,545 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 4 states have internal predecessors, (65), 2 states have call successors, (16), 4 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2021-11-13 17:43:59,545 INFO L276 IsEmpty]: Start isEmpty. Operand 21194 states and 28910 transitions. [2021-11-13 17:43:59,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2021-11-13 17:43:59,548 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:43:59,549 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 4, 4, 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] [2021-11-13 17:43:59,549 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-11-13 17:43:59,549 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_assert_linux_usb_gadget__class_registration_with_usb_gadgetErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_usb_gadget__class_registration_with_usb_gadgetErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 42 more)] === [2021-11-13 17:43:59,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:43:59,550 INFO L85 PathProgramCache]: Analyzing trace with hash 914862256, now seen corresponding path program 1 times [2021-11-13 17:43:59,550 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:43:59,550 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1161932734] [2021-11-13 17:43:59,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:43:59,551 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:43:59,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:43:59,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-13 17:43:59,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:43:59,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-11-13 17:43:59,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:43:59,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:43:59,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:43:59,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 17:43:59,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:43:59,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-11-13 17:43:59,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:43:59,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:43:59,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:43:59,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 17:43:59,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:43:59,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-11-13 17:43:59,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:43:59,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-13 17:43:59,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:43:59,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-11-13 17:43:59,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:43:59,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-11-13 17:43:59,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:43:59,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:43:59,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:43:59,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-11-13 17:44:00,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:44:00,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-11-13 17:44:00,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:44:00,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-11-13 17:44:00,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:44:00,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-13 17:44:00,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:44:00,096 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2021-11-13 17:44:00,097 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:44:00,097 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1161932734] [2021-11-13 17:44:00,097 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1161932734] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 17:44:00,097 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:44:00,097 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-13 17:44:00,098 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1636054121] [2021-11-13 17:44:00,098 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 17:44:00,098 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-13 17:44:00,099 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:44:00,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-13 17:44:00,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-13 17:44:00,100 INFO L87 Difference]: Start difference. First operand 21194 states and 28910 transitions. Second operand has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-11-13 17:44:02,154 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:44:08,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:44:08,970 INFO L93 Difference]: Finished difference Result 24210 states and 34192 transitions. [2021-11-13 17:44:08,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-13 17:44:08,970 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (15), 3 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 112 [2021-11-13 17:44:08,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:44:09,042 INFO L225 Difference]: With dead ends: 24210 [2021-11-13 17:44:09,042 INFO L226 Difference]: Without dead ends: 24208 [2021-11-13 17:44:09,049 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-11-13 17:44:09,050 INFO L933 BasicCegarLoop]: 3510 mSDtfsCounter, 4601 mSDsluCounter, 7251 mSDsCounter, 0 mSdLazyCounter, 2724 mSolverCounterSat, 1632 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6589.27ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 5023 SdHoareTripleChecker+Valid, 10761 SdHoareTripleChecker+Invalid, 4357 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 44.01ms SdHoareTripleChecker+Time, 1632 IncrementalHoareTripleChecker+Valid, 2724 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7695.91ms IncrementalHoareTripleChecker+Time [2021-11-13 17:44:09,051 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5023 Valid, 10761 Invalid, 4357 Unknown, 0 Unchecked, 44.01ms Time], IncrementalHoareTripleChecker [1632 Valid, 2724 Invalid, 1 Unknown, 0 Unchecked, 7695.91ms Time] [2021-11-13 17:44:09,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24208 states. [2021-11-13 17:44:10,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24208 to 22522. [2021-11-13 17:44:10,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22522 states, 15281 states have (on average 1.2613703291669394) internal successors, (19275), 15913 states have internal predecessors, (19275), 5529 states have call successors, (5529), 1581 states have call predecessors, (5529), 1678 states have return successors, (6413), 5387 states have call predecessors, (6413), 5527 states have call successors, (6413) [2021-11-13 17:44:10,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22522 states to 22522 states and 31217 transitions. [2021-11-13 17:44:10,727 INFO L78 Accepts]: Start accepts. Automaton has 22522 states and 31217 transitions. Word has length 112 [2021-11-13 17:44:10,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:44:10,728 INFO L470 AbstractCegarLoop]: Abstraction has 22522 states and 31217 transitions. [2021-11-13 17:44:10,728 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-11-13 17:44:10,728 INFO L276 IsEmpty]: Start isEmpty. Operand 22522 states and 31217 transitions. [2021-11-13 17:44:10,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-11-13 17:44:10,729 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:44:10,730 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:44:10,730 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-11-13 17:44:10,730 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_linux_kernel_rcu_update_lock_bh_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_usb_gadget__class_registration_with_usb_gadgetErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 42 more)] === [2021-11-13 17:44:10,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:44:10,730 INFO L85 PathProgramCache]: Analyzing trace with hash 416964394, now seen corresponding path program 1 times [2021-11-13 17:44:10,730 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:44:10,730 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [169807763] [2021-11-13 17:44:10,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:44:10,731 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:44:10,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:44:10,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-13 17:44:10,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:44:10,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-13 17:44:10,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:44:10,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-13 17:44:10,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:44:10,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-11-13 17:44:10,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:44:10,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:44:10,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:44:10,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-13 17:44:10,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:44:10,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-11-13 17:44:10,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:44:10,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2021-11-13 17:44:10,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:44:10,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2021-11-13 17:44:11,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:44:11,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-11-13 17:44:11,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:44:11,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-13 17:44:11,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:44:11,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-11-13 17:44:11,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:44:11,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-11-13 17:44:11,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:44:11,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-11-13 17:44:11,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:44:11,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2021-11-13 17:44:11,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:44:11,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-13 17:44:11,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:44:11,082 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-13 17:44:11,082 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:44:11,083 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [169807763] [2021-11-13 17:44:11,083 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [169807763] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 17:44:11,083 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:44:11,083 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-13 17:44:11,083 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [443421468] [2021-11-13 17:44:11,084 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 17:44:11,085 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-13 17:44:11,085 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:44:11,085 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-13 17:44:11,085 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-13 17:44:11,086 INFO L87 Difference]: Start difference. First operand 22522 states and 31217 transitions. Second operand has 6 states, 6 states have (on average 11.5) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (17), 4 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-11-13 17:44:13,142 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:44:15,331 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.19s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:44:25,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:44:25,815 INFO L93 Difference]: Finished difference Result 23954 states and 33411 transitions. [2021-11-13 17:44:25,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-13 17:44:25,815 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (17), 4 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 108 [2021-11-13 17:44:25,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:44:25,881 INFO L225 Difference]: With dead ends: 23954 [2021-11-13 17:44:25,881 INFO L226 Difference]: Without dead ends: 23952 [2021-11-13 17:44:25,890 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2021-11-13 17:44:25,891 INFO L933 BasicCegarLoop]: 3066 mSDtfsCounter, 6618 mSDsluCounter, 1504 mSDsCounter, 0 mSdLazyCounter, 3652 mSolverCounterSat, 3607 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11582.50ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 6728 SdHoareTripleChecker+Valid, 4570 SdHoareTripleChecker+Invalid, 7261 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 43.35ms SdHoareTripleChecker+Time, 3607 IncrementalHoareTripleChecker+Valid, 3652 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13386.06ms IncrementalHoareTripleChecker+Time [2021-11-13 17:44:25,891 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6728 Valid, 4570 Invalid, 7261 Unknown, 0 Unchecked, 43.35ms Time], IncrementalHoareTripleChecker [3607 Valid, 3652 Invalid, 2 Unknown, 0 Unchecked, 13386.06ms Time] [2021-11-13 17:44:25,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23952 states. [2021-11-13 17:44:27,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23952 to 22520. [2021-11-13 17:44:27,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22520 states, 15280 states have (on average 1.2612565445026178) internal successors, (19272), 15911 states have internal predecessors, (19272), 5529 states have call successors, (5529), 1581 states have call predecessors, (5529), 1678 states have return successors, (6413), 5387 states have call predecessors, (6413), 5527 states have call successors, (6413) [2021-11-13 17:44:27,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22520 states to 22520 states and 31214 transitions. [2021-11-13 17:44:27,389 INFO L78 Accepts]: Start accepts. Automaton has 22520 states and 31214 transitions. Word has length 108 [2021-11-13 17:44:27,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:44:27,389 INFO L470 AbstractCegarLoop]: Abstraction has 22520 states and 31214 transitions. [2021-11-13 17:44:27,390 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (17), 4 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-11-13 17:44:27,390 INFO L276 IsEmpty]: Start isEmpty. Operand 22520 states and 31214 transitions. [2021-11-13 17:44:27,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-11-13 17:44:27,392 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:44:27,392 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:44:27,393 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-11-13 17:44:27,393 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_linux_kernel_rcu_update_lock_sched_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_usb_gadget__class_registration_with_usb_gadgetErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 42 more)] === [2021-11-13 17:44:27,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:44:27,393 INFO L85 PathProgramCache]: Analyzing trace with hash -177218901, now seen corresponding path program 1 times [2021-11-13 17:44:27,393 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:44:27,394 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1117730264] [2021-11-13 17:44:27,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:44:27,394 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:44:27,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:44:27,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-13 17:44:27,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:44:27,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-13 17:44:27,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:44:27,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-13 17:44:27,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:44:27,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-11-13 17:44:27,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:44:27,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:44:27,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:44:27,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-13 17:44:27,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:44:27,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-11-13 17:44:27,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:44:27,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2021-11-13 17:44:27,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:44:27,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2021-11-13 17:44:27,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:44:27,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-11-13 17:44:27,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:44:27,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-13 17:44:27,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:44:27,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-11-13 17:44:27,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:44:27,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-11-13 17:44:27,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:44:27,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-11-13 17:44:27,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:44:27,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2021-11-13 17:44:27,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:44:27,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-13 17:44:27,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:44:27,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-11-13 17:44:27,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:44:27,878 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-13 17:44:27,878 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:44:27,878 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1117730264] [2021-11-13 17:44:27,879 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1117730264] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 17:44:27,879 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:44:27,879 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-13 17:44:27,879 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1152942888] [2021-11-13 17:44:27,879 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 17:44:27,881 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-13 17:44:27,881 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:44:27,881 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-13 17:44:27,881 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-13 17:44:27,882 INFO L87 Difference]: Start difference. First operand 22520 states and 31214 transitions. Second operand has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (18), 4 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2021-11-13 17:44:29,942 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:44:32,184 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.24s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:44:44,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:44:44,875 INFO L93 Difference]: Finished difference Result 23952 states and 33408 transitions. [2021-11-13 17:44:44,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-13 17:44:44,876 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (18), 4 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 114 [2021-11-13 17:44:44,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:44:44,957 INFO L225 Difference]: With dead ends: 23952 [2021-11-13 17:44:44,957 INFO L226 Difference]: Without dead ends: 23950 [2021-11-13 17:44:44,965 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2021-11-13 17:44:44,966 INFO L933 BasicCegarLoop]: 3156 mSDtfsCounter, 6460 mSDsluCounter, 1520 mSDsCounter, 0 mSdLazyCounter, 3726 mSolverCounterSat, 3559 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13346.95ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 6569 SdHoareTripleChecker+Valid, 4676 SdHoareTripleChecker+Invalid, 7287 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 51.98ms SdHoareTripleChecker+Time, 3559 IncrementalHoareTripleChecker+Valid, 3726 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15455.37ms IncrementalHoareTripleChecker+Time [2021-11-13 17:44:44,966 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6569 Valid, 4676 Invalid, 7287 Unknown, 0 Unchecked, 51.98ms Time], IncrementalHoareTripleChecker [3559 Valid, 3726 Invalid, 2 Unknown, 0 Unchecked, 15455.37ms Time] [2021-11-13 17:44:44,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23950 states. [2021-11-13 17:44:46,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23950 to 22518. [2021-11-13 17:44:46,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22518 states, 15279 states have (on average 1.2611427449440409) internal successors, (19269), 15909 states have internal predecessors, (19269), 5529 states have call successors, (5529), 1581 states have call predecessors, (5529), 1678 states have return successors, (6413), 5387 states have call predecessors, (6413), 5527 states have call successors, (6413) [2021-11-13 17:44:46,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22518 states to 22518 states and 31211 transitions. [2021-11-13 17:44:46,563 INFO L78 Accepts]: Start accepts. Automaton has 22518 states and 31211 transitions. Word has length 114 [2021-11-13 17:44:46,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:44:46,563 INFO L470 AbstractCegarLoop]: Abstraction has 22518 states and 31211 transitions. [2021-11-13 17:44:46,564 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (18), 4 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2021-11-13 17:44:46,564 INFO L276 IsEmpty]: Start isEmpty. Operand 22518 states and 31211 transitions. [2021-11-13 17:44:46,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2021-11-13 17:44:46,567 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:44:46,567 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:44:46,567 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-11-13 17:44:46,567 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_usb_gadget__class_registration_with_usb_gadgetErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 42 more)] === [2021-11-13 17:44:46,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:44:46,568 INFO L85 PathProgramCache]: Analyzing trace with hash 23645289, now seen corresponding path program 1 times [2021-11-13 17:44:46,568 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:44:46,568 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [761300040] [2021-11-13 17:44:46,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:44:46,569 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:44:46,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:44:46,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-13 17:44:46,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:44:46,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-13 17:44:46,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:44:46,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-13 17:44:46,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:44:46,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-11-13 17:44:46,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:44:46,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:44:46,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:44:46,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-13 17:44:46,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:44:46,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-11-13 17:44:46,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:44:46,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2021-11-13 17:44:46,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:44:46,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2021-11-13 17:44:46,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:44:46,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-11-13 17:44:46,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:44:46,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-13 17:44:46,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:44:46,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-11-13 17:44:46,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:44:46,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-11-13 17:44:46,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:44:46,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-11-13 17:44:46,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:44:46,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2021-11-13 17:44:46,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:44:46,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-13 17:44:46,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:44:46,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-11-13 17:44:46,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:44:46,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-11-13 17:44:46,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:44:46,906 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-13 17:44:46,906 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:44:46,907 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [761300040] [2021-11-13 17:44:46,907 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [761300040] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 17:44:46,907 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:44:46,907 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-13 17:44:46,907 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1298822118] [2021-11-13 17:44:46,908 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 17:44:46,908 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-13 17:44:46,908 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:44:46,909 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-13 17:44:46,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-13 17:44:46,909 INFO L87 Difference]: Start difference. First operand 22518 states and 31211 transitions. Second operand has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 4 states have internal predecessors, (77), 2 states have call successors, (19), 4 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-11-13 17:44:48,969 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:44:51,253 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.28s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:45:13,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:45:13,634 INFO L93 Difference]: Finished difference Result 38437 states and 54407 transitions. [2021-11-13 17:45:13,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-13 17:45:13,644 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 4 states have internal predecessors, (77), 2 states have call successors, (19), 4 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 120 [2021-11-13 17:45:13,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:45:13,804 INFO L225 Difference]: With dead ends: 38437 [2021-11-13 17:45:13,804 INFO L226 Difference]: Without dead ends: 38435 [2021-11-13 17:45:13,822 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2021-11-13 17:45:13,823 INFO L933 BasicCegarLoop]: 3233 mSDtfsCounter, 8093 mSDsluCounter, 2592 mSDsCounter, 0 mSdLazyCounter, 7140 mSolverCounterSat, 4442 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20612.99ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 8240 SdHoareTripleChecker+Valid, 5825 SdHoareTripleChecker+Invalid, 11584 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 89.66ms SdHoareTripleChecker+Time, 4442 IncrementalHoareTripleChecker+Valid, 7140 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 24101.05ms IncrementalHoareTripleChecker+Time [2021-11-13 17:45:13,823 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8240 Valid, 5825 Invalid, 11584 Unknown, 0 Unchecked, 89.66ms Time], IncrementalHoareTripleChecker [4442 Valid, 7140 Invalid, 2 Unknown, 0 Unchecked, 24101.05ms Time] [2021-11-13 17:45:13,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38435 states. [2021-11-13 17:45:16,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38435 to 36560. [2021-11-13 17:45:16,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36560 states, 24824 states have (on average 1.2688124395746052) internal successors, (31497), 25870 states have internal predecessors, (31497), 8892 states have call successors, (8892), 2663 states have call predecessors, (8892), 2812 states have return successors, (11206), 8582 states have call predecessors, (11206), 8890 states have call successors, (11206) [2021-11-13 17:45:16,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36560 states to 36560 states and 51595 transitions. [2021-11-13 17:45:16,645 INFO L78 Accepts]: Start accepts. Automaton has 36560 states and 51595 transitions. Word has length 120 [2021-11-13 17:45:16,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:45:16,645 INFO L470 AbstractCegarLoop]: Abstraction has 36560 states and 51595 transitions. [2021-11-13 17:45:16,645 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 4 states have internal predecessors, (77), 2 states have call successors, (19), 4 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-11-13 17:45:16,646 INFO L276 IsEmpty]: Start isEmpty. Operand 36560 states and 51595 transitions. [2021-11-13 17:45:16,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2021-11-13 17:45:16,648 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:45:16,648 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:45:16,648 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-11-13 17:45:16,648 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ldv_linux_kernel_rcu_srcu_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_usb_gadget__class_registration_with_usb_gadgetErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 42 more)] === [2021-11-13 17:45:16,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:45:16,648 INFO L85 PathProgramCache]: Analyzing trace with hash -1376337525, now seen corresponding path program 1 times [2021-11-13 17:45:16,649 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:45:16,649 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [947472828] [2021-11-13 17:45:16,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:45:16,649 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:45:16,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:45:16,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-13 17:45:16,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:45:16,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-13 17:45:16,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:45:16,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-13 17:45:16,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:45:16,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-11-13 17:45:16,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:45:16,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:45:16,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:45:16,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-13 17:45:16,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:45:16,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-11-13 17:45:16,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:45:16,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2021-11-13 17:45:16,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:45:16,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2021-11-13 17:45:16,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:45:16,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-11-13 17:45:16,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:45:16,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-13 17:45:16,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:45:16,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-11-13 17:45:16,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:45:16,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-11-13 17:45:16,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:45:16,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-11-13 17:45:16,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:45:16,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2021-11-13 17:45:16,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:45:16,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-13 17:45:17,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:45:17,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-11-13 17:45:17,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:45:17,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-11-13 17:45:17,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:45:17,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-11-13 17:45:17,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:45:17,049 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-13 17:45:17,049 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:45:17,049 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [947472828] [2021-11-13 17:45:17,050 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [947472828] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 17:45:17,050 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:45:17,050 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-13 17:45:17,050 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2549497] [2021-11-13 17:45:17,051 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 17:45:17,052 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-13 17:45:17,052 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:45:17,053 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-13 17:45:17,053 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-13 17:45:17,053 INFO L87 Difference]: Start difference. First operand 36560 states and 51595 transitions. Second operand has 6 states, 6 states have (on average 13.5) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (20), 4 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-11-13 17:45:19,124 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:45:21,392 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.27s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:45:34,159 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:45:37,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:45:37,107 INFO L93 Difference]: Finished difference Result 37992 states and 53843 transitions. [2021-11-13 17:45:37,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-13 17:45:37,107 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.5) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (20), 4 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 126 [2021-11-13 17:45:37,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:45:37,229 INFO L225 Difference]: With dead ends: 37992 [2021-11-13 17:45:37,229 INFO L226 Difference]: Without dead ends: 37990 [2021-11-13 17:45:37,242 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2021-11-13 17:45:37,243 INFO L933 BasicCegarLoop]: 3136 mSDtfsCounter, 6484 mSDsluCounter, 1517 mSDsCounter, 0 mSdLazyCounter, 3709 mSolverCounterSat, 3568 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15033.88ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 6591 SdHoareTripleChecker+Valid, 4653 SdHoareTripleChecker+Invalid, 7279 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 53.46ms SdHoareTripleChecker+Time, 3568 IncrementalHoareTripleChecker+Valid, 3709 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17473.99ms IncrementalHoareTripleChecker+Time [2021-11-13 17:45:37,244 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6591 Valid, 4653 Invalid, 7279 Unknown, 0 Unchecked, 53.46ms Time], IncrementalHoareTripleChecker [3568 Valid, 3709 Invalid, 2 Unknown, 0 Unchecked, 17473.99ms Time] [2021-11-13 17:45:37,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37990 states. [2021-11-13 17:45:39,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37990 to 36558. [2021-11-13 17:45:39,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36558 states, 24823 states have (on average 1.2687426983039922) internal successors, (31494), 25868 states have internal predecessors, (31494), 8892 states have call successors, (8892), 2663 states have call predecessors, (8892), 2812 states have return successors, (11206), 8582 states have call predecessors, (11206), 8890 states have call successors, (11206) [2021-11-13 17:45:39,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36558 states to 36558 states and 51592 transitions. [2021-11-13 17:45:39,914 INFO L78 Accepts]: Start accepts. Automaton has 36558 states and 51592 transitions. Word has length 126 [2021-11-13 17:45:39,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:45:39,915 INFO L470 AbstractCegarLoop]: Abstraction has 36558 states and 51592 transitions. [2021-11-13 17:45:39,916 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.5) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (20), 4 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-11-13 17:45:39,916 INFO L276 IsEmpty]: Start isEmpty. Operand 36558 states and 51592 transitions. [2021-11-13 17:45:39,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2021-11-13 17:45:39,919 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:45:39,919 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:45:39,920 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-11-13 17:45:39,920 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ldv_assert_linux_lib_idr__more_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_usb_gadget__class_registration_with_usb_gadgetErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 42 more)] === [2021-11-13 17:45:39,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:45:39,920 INFO L85 PathProgramCache]: Analyzing trace with hash -1653222452, now seen corresponding path program 1 times [2021-11-13 17:45:39,920 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:45:39,921 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1590436224] [2021-11-13 17:45:39,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:45:39,921 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:45:40,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:45:40,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-13 17:45:40,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:45:40,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-13 17:45:40,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:45:40,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-13 17:45:40,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:45:40,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-11-13 17:45:40,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:45:40,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:45:40,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:45:40,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-13 17:45:40,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:45:40,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-11-13 17:45:40,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:45:40,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2021-11-13 17:45:40,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:45:40,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2021-11-13 17:45:40,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:45:40,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-11-13 17:45:40,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:45:40,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-13 17:45:40,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:45:40,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-11-13 17:45:40,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:45:40,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-11-13 17:45:40,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:45:40,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-11-13 17:45:40,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:45:40,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2021-11-13 17:45:40,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:45:40,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-13 17:45:40,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:45:40,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-11-13 17:45:40,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:45:40,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-11-13 17:45:40,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:45:40,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-11-13 17:45:40,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:45:40,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-11-13 17:45:40,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:45:40,541 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-13 17:45:40,542 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:45:40,542 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1590436224] [2021-11-13 17:45:40,542 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1590436224] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 17:45:40,542 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:45:40,543 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-13 17:45:40,543 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1678126789] [2021-11-13 17:45:40,543 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 17:45:40,545 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-13 17:45:40,545 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:45:40,546 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-13 17:45:40,546 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-13 17:45:40,546 INFO L87 Difference]: Start difference. First operand 36558 states and 51592 transitions. Second operand has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 4 states have internal predecessors, (85), 2 states have call successors, (22), 5 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-11-13 17:45:42,618 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:45:44,925 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.31s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:46:10,291 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:46:15,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:46:15,195 INFO L93 Difference]: Finished difference Result 55400 states and 79356 transitions. [2021-11-13 17:46:15,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-13 17:46:15,198 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 4 states have internal predecessors, (85), 2 states have call successors, (22), 5 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 133 [2021-11-13 17:46:15,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:46:15,411 INFO L225 Difference]: With dead ends: 55400 [2021-11-13 17:46:15,411 INFO L226 Difference]: Without dead ends: 55398 [2021-11-13 17:46:15,430 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=72, Invalid=138, Unknown=0, NotChecked=0, Total=210 [2021-11-13 17:46:15,431 INFO L933 BasicCegarLoop]: 3259 mSDtfsCounter, 8738 mSDsluCounter, 3746 mSDsCounter, 0 mSdLazyCounter, 10475 mSolverCounterSat, 4984 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 26708.88ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 8885 SdHoareTripleChecker+Valid, 7005 SdHoareTripleChecker+Invalid, 15461 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 112.48ms SdHoareTripleChecker+Time, 4984 IncrementalHoareTripleChecker+Valid, 10475 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 30831.90ms IncrementalHoareTripleChecker+Time [2021-11-13 17:46:15,432 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8885 Valid, 7005 Invalid, 15461 Unknown, 0 Unchecked, 112.48ms Time], IncrementalHoareTripleChecker [4984 Valid, 10475 Invalid, 2 Unknown, 0 Unchecked, 30831.90ms Time] [2021-11-13 17:46:15,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55398 states. [2021-11-13 17:46:19,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55398 to 53751. [2021-11-13 17:46:19,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53751 states, 36361 states have (on average 1.263991639393856) internal successors, (45960), 37862 states have internal predecessors, (45960), 13149 states have call successors, (13149), 4009 states have call predecessors, (13149), 4210 states have return successors, (17733), 12685 states have call predecessors, (17733), 13147 states have call successors, (17733) [2021-11-13 17:46:19,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53751 states to 53751 states and 76842 transitions. [2021-11-13 17:46:19,423 INFO L78 Accepts]: Start accepts. Automaton has 53751 states and 76842 transitions. Word has length 133 [2021-11-13 17:46:19,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:46:19,424 INFO L470 AbstractCegarLoop]: Abstraction has 53751 states and 76842 transitions. [2021-11-13 17:46:19,424 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 4 states have internal predecessors, (85), 2 states have call successors, (22), 5 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-11-13 17:46:19,425 INFO L276 IsEmpty]: Start isEmpty. Operand 53751 states and 76842 transitions. [2021-11-13 17:46:19,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2021-11-13 17:46:19,428 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:46:19,428 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 4, 4, 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] [2021-11-13 17:46:19,429 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-11-13 17:46:19,429 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ldv_unregister_chrdev_159Err0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_usb_gadget__class_registration_with_usb_gadgetErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 42 more)] === [2021-11-13 17:46:19,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:46:19,429 INFO L85 PathProgramCache]: Analyzing trace with hash 1145051688, now seen corresponding path program 1 times [2021-11-13 17:46:19,430 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:46:19,430 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [3702503] [2021-11-13 17:46:19,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:46:19,430 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:46:19,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:46:20,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-13 17:46:20,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:46:20,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-11-13 17:46:20,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:46:20,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:46:20,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:46:20,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 17:46:20,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:46:20,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-11-13 17:46:20,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:46:20,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:46:20,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:46:20,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 17:46:20,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:46:20,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-11-13 17:46:20,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:46:20,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-13 17:46:20,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:46:20,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-11-13 17:46:20,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:46:20,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-11-13 17:46:20,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:46:20,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:46:20,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:46:20,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-11-13 17:46:20,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:46:20,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-11-13 17:46:20,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:46:20,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-11-13 17:46:20,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:46:20,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-13 17:46:20,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:46:20,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-11-13 17:46:20,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:46:20,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-11-13 17:46:20,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:46:20,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:46:20,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:46:20,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2021-11-13 17:46:20,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:46:20,463 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 138 trivial. 0 not checked. [2021-11-13 17:46:20,463 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:46:20,464 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [3702503] [2021-11-13 17:46:20,464 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [3702503] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-13 17:46:20,464 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [504394220] [2021-11-13 17:46:20,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:46:20,464 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 17:46:20,465 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c55d79ca-6b20-436e-bfb3-3d2a45e8c03b/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 17:46:20,467 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c55d79ca-6b20-436e-bfb3-3d2a45e8c03b/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-13 17:46:20,471 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c55d79ca-6b20-436e-bfb3-3d2a45e8c03b/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-13 17:46:21,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:46:21,564 INFO L263 TraceCheckSpWp]: Trace formula consists of 2414 conjuncts, 41 conjunts are in the unsatisfiable core [2021-11-13 17:46:21,582 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 17:46:22,239 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 69 proven. 0 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2021-11-13 17:46:22,240 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-13 17:46:22,240 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [504394220] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 17:46:22,240 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-13 17:46:22,240 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [9] total 17 [2021-11-13 17:46:22,241 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1343199438] [2021-11-13 17:46:22,241 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 17:46:22,242 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-13 17:46:22,242 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:46:22,242 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-13 17:46:22,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2021-11-13 17:46:22,243 INFO L87 Difference]: Start difference. First operand 53751 states and 76842 transitions. Second operand has 10 states, 10 states have (on average 7.1) internal successors, (71), 10 states have internal predecessors, (71), 4 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (18), 4 states have call predecessors, (18), 4 states have call successors, (18) [2021-11-13 17:46:26,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:46:26,503 INFO L93 Difference]: Finished difference Result 60149 states and 84580 transitions. [2021-11-13 17:46:26,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-13 17:46:26,504 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.1) internal successors, (71), 10 states have internal predecessors, (71), 4 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (18), 4 states have call predecessors, (18), 4 states have call successors, (18) Word has length 140 [2021-11-13 17:46:26,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:46:26,735 INFO L225 Difference]: With dead ends: 60149 [2021-11-13 17:46:26,736 INFO L226 Difference]: Without dead ends: 53316 [2021-11-13 17:46:26,780 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 193 GetRequests, 171 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=101, Invalid=451, Unknown=0, NotChecked=0, Total=552 [2021-11-13 17:46:26,781 INFO L933 BasicCegarLoop]: 3830 mSDtfsCounter, 754 mSDsluCounter, 29509 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 449 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 295.99ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 779 SdHoareTripleChecker+Valid, 33339 SdHoareTripleChecker+Invalid, 520 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 37.55ms SdHoareTripleChecker+Time, 449 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 408.55ms IncrementalHoareTripleChecker+Time [2021-11-13 17:46:26,781 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [779 Valid, 33339 Invalid, 520 Unknown, 0 Unchecked, 37.55ms Time], IncrementalHoareTripleChecker [449 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 408.55ms Time] [2021-11-13 17:46:26,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53316 states. [2021-11-13 17:46:30,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53316 to 52990. [2021-11-13 17:46:30,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52990 states, 35872 states have (on average 1.2653880463871543) internal successors, (45392), 37335 states have internal predecessors, (45392), 12937 states have call successors, (12937), 3949 states have call predecessors, (12937), 4150 states have return successors, (17513), 12485 states have call predecessors, (17513), 12935 states have call successors, (17513) [2021-11-13 17:46:30,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52990 states to 52990 states and 75842 transitions. [2021-11-13 17:46:30,969 INFO L78 Accepts]: Start accepts. Automaton has 52990 states and 75842 transitions. Word has length 140 [2021-11-13 17:46:30,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:46:30,970 INFO L470 AbstractCegarLoop]: Abstraction has 52990 states and 75842 transitions. [2021-11-13 17:46:30,970 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.1) internal successors, (71), 10 states have internal predecessors, (71), 4 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (18), 4 states have call predecessors, (18), 4 states have call successors, (18) [2021-11-13 17:46:30,970 INFO L276 IsEmpty]: Start isEmpty. Operand 52990 states and 75842 transitions. [2021-11-13 17:46:30,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2021-11-13 17:46:30,973 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:46:30,973 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:46:31,023 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c55d79ca-6b20-436e-bfb3-3d2a45e8c03b/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-13 17:46:31,199 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c55d79ca-6b20-436e-bfb3-3d2a45e8c03b/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 17:46:31,199 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ldv_assert_linux_lib_idr__more_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_usb_gadget__class_registration_with_usb_gadgetErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 42 more)] === [2021-11-13 17:46:31,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:46:31,200 INFO L85 PathProgramCache]: Analyzing trace with hash 232907863, now seen corresponding path program 1 times [2021-11-13 17:46:31,200 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:46:31,200 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [382544885] [2021-11-13 17:46:31,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:46:31,200 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:46:31,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:46:31,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-13 17:46:31,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:46:31,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-13 17:46:31,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:46:31,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-13 17:46:31,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:46:31,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-11-13 17:46:31,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:46:31,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:46:31,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:46:31,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-13 17:46:31,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:46:31,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-11-13 17:46:31,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:46:31,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2021-11-13 17:46:31,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:46:31,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2021-11-13 17:46:31,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:46:31,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-11-13 17:46:31,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:46:31,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-13 17:46:31,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:46:31,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-11-13 17:46:31,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:46:31,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-11-13 17:46:31,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:46:31,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-11-13 17:46:31,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:46:31,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2021-11-13 17:46:31,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:46:31,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-13 17:46:31,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:46:31,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-11-13 17:46:31,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:46:31,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-11-13 17:46:31,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:46:31,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-11-13 17:46:31,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:46:31,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-11-13 17:46:31,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:46:31,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-11-13 17:46:31,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:46:31,625 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-13 17:46:31,625 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:46:31,625 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [382544885] [2021-11-13 17:46:31,626 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [382544885] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 17:46:31,626 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:46:31,626 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-13 17:46:31,626 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1432425775] [2021-11-13 17:46:31,626 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 17:46:31,627 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-13 17:46:31,627 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:46:31,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-13 17:46:31,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-13 17:46:31,628 INFO L87 Difference]: Start difference. First operand 52990 states and 75842 transitions. Second operand has 7 states, 7 states have (on average 12.571428571428571) internal successors, (88), 4 states have internal predecessors, (88), 2 states have call successors, (23), 5 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-11-13 17:46:33,684 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:46:35,945 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.26s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:47:14,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:47:14,537 INFO L93 Difference]: Finished difference Result 78955 states and 115293 transitions. [2021-11-13 17:47:14,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-13 17:47:14,543 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.571428571428571) internal successors, (88), 4 states have internal predecessors, (88), 2 states have call successors, (23), 5 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 138 [2021-11-13 17:47:14,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:47:14,867 INFO L225 Difference]: With dead ends: 78955 [2021-11-13 17:47:14,867 INFO L226 Difference]: Without dead ends: 78953 [2021-11-13 17:47:14,897 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=72, Invalid=138, Unknown=0, NotChecked=0, Total=210 [2021-11-13 17:47:14,897 INFO L933 BasicCegarLoop]: 3307 mSDtfsCounter, 10473 mSDsluCounter, 3863 mSDsCounter, 0 mSdLazyCounter, 11208 mSolverCounterSat, 6018 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 30596.71ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 10618 SdHoareTripleChecker+Valid, 7170 SdHoareTripleChecker+Invalid, 17228 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 162.70ms SdHoareTripleChecker+Time, 6018 IncrementalHoareTripleChecker+Valid, 11208 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 36157.08ms IncrementalHoareTripleChecker+Time [2021-11-13 17:47:14,898 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10618 Valid, 7170 Invalid, 17228 Unknown, 0 Unchecked, 162.70ms Time], IncrementalHoareTripleChecker [6018 Valid, 11208 Invalid, 2 Unknown, 0 Unchecked, 36157.08ms Time] [2021-11-13 17:47:14,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78953 states. [2021-11-13 17:47:20,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78953 to 75230. [2021-11-13 17:47:20,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75230 states, 51065 states have (on average 1.2647801821208264) internal successors, (64586), 53168 states have internal predecessors, (64586), 18319 states have call successors, (18319), 5560 states have call predecessors, (18319), 5815 states have return successors, (26600), 17623 states have call predecessors, (26600), 18317 states have call successors, (26600) [2021-11-13 17:47:20,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75230 states to 75230 states and 109505 transitions. [2021-11-13 17:47:20,947 INFO L78 Accepts]: Start accepts. Automaton has 75230 states and 109505 transitions. Word has length 138 [2021-11-13 17:47:20,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:47:20,947 INFO L470 AbstractCegarLoop]: Abstraction has 75230 states and 109505 transitions. [2021-11-13 17:47:20,948 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.571428571428571) internal successors, (88), 4 states have internal predecessors, (88), 2 states have call successors, (23), 5 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-11-13 17:47:20,948 INFO L276 IsEmpty]: Start isEmpty. Operand 75230 states and 109505 transitions. [2021-11-13 17:47:20,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2021-11-13 17:47:20,951 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:47:20,951 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:47:20,952 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-11-13 17:47:20,952 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ldv_linux_mmc_sdio_func_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_usb_gadget__class_registration_with_usb_gadgetErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 42 more)] === [2021-11-13 17:47:20,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:47:20,953 INFO L85 PathProgramCache]: Analyzing trace with hash 1438024972, now seen corresponding path program 1 times [2021-11-13 17:47:20,953 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:47:20,953 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [970803270] [2021-11-13 17:47:20,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:47:20,953 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:47:21,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:47:21,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-13 17:47:21,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:47:21,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-13 17:47:21,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:47:21,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-13 17:47:21,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:47:21,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-11-13 17:47:21,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:47:21,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:47:21,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:47:21,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-13 17:47:21,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:47:21,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-11-13 17:47:21,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:47:21,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2021-11-13 17:47:21,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:47:21,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2021-11-13 17:47:21,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:47:21,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-11-13 17:47:21,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:47:21,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-13 17:47:21,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:47:21,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-11-13 17:47:21,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:47:21,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-11-13 17:47:21,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:47:21,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-11-13 17:47:21,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:47:21,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2021-11-13 17:47:21,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:47:21,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-13 17:47:21,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:47:21,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-11-13 17:47:21,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:47:21,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-11-13 17:47:21,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:47:21,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-11-13 17:47:21,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:47:21,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-11-13 17:47:21,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:47:21,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2021-11-13 17:47:21,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:47:21,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-11-13 17:47:21,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:47:21,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-11-13 17:47:21,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:47:21,764 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-11-13 17:47:21,764 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:47:21,765 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [970803270] [2021-11-13 17:47:21,765 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [970803270] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 17:47:21,765 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:47:21,765 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-13 17:47:21,765 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1222404902] [2021-11-13 17:47:21,765 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 17:47:21,766 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-13 17:47:21,766 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:47:21,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-13 17:47:21,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-13 17:47:21,766 INFO L87 Difference]: Start difference. First operand 75230 states and 109505 transitions. Second operand has 6 states, 6 states have (on average 14.833333333333334) internal successors, (89), 4 states have internal predecessors, (89), 2 states have call successors, (24), 4 states have call predecessors, (24), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2021-11-13 17:47:23,829 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:47:26,115 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.29s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:47:43,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:47:43,644 INFO L93 Difference]: Finished difference Result 78094 states and 114317 transitions. [2021-11-13 17:47:43,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-13 17:47:43,645 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.833333333333334) internal successors, (89), 4 states have internal predecessors, (89), 2 states have call successors, (24), 4 states have call predecessors, (24), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 145 [2021-11-13 17:47:43,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:47:43,961 INFO L225 Difference]: With dead ends: 78094 [2021-11-13 17:47:43,961 INFO L226 Difference]: Without dead ends: 78092 [2021-11-13 17:47:43,990 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2021-11-13 17:47:43,990 INFO L933 BasicCegarLoop]: 3097 mSDtfsCounter, 6552 mSDsluCounter, 1517 mSDsCounter, 0 mSdLazyCounter, 3670 mSolverCounterSat, 3568 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14071.66ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 6657 SdHoareTripleChecker+Valid, 4614 SdHoareTripleChecker+Invalid, 7240 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 54.02ms SdHoareTripleChecker+Time, 3568 IncrementalHoareTripleChecker+Valid, 3670 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16653.48ms IncrementalHoareTripleChecker+Time [2021-11-13 17:47:43,991 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6657 Valid, 4614 Invalid, 7240 Unknown, 0 Unchecked, 54.02ms Time], IncrementalHoareTripleChecker [3568 Valid, 3670 Invalid, 2 Unknown, 0 Unchecked, 16653.48ms Time] [2021-11-13 17:47:44,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78092 states. [2021-11-13 17:47:49,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78092 to 75228. [2021-11-13 17:47:49,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75228 states, 51064 states have (on average 1.264746200845997) internal successors, (64583), 53166 states have internal predecessors, (64583), 18319 states have call successors, (18319), 5560 states have call predecessors, (18319), 5815 states have return successors, (26600), 17623 states have call predecessors, (26600), 18317 states have call successors, (26600) [2021-11-13 17:47:49,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75228 states to 75228 states and 109502 transitions. [2021-11-13 17:47:49,981 INFO L78 Accepts]: Start accepts. Automaton has 75228 states and 109502 transitions. Word has length 145 [2021-11-13 17:47:49,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:47:49,981 INFO L470 AbstractCegarLoop]: Abstraction has 75228 states and 109502 transitions. [2021-11-13 17:47:49,981 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.833333333333334) internal successors, (89), 4 states have internal predecessors, (89), 2 states have call successors, (24), 4 states have call predecessors, (24), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2021-11-13 17:47:49,982 INFO L276 IsEmpty]: Start isEmpty. Operand 75228 states and 109502 transitions. [2021-11-13 17:47:49,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2021-11-13 17:47:49,985 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:47:49,985 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 4, 4, 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] [2021-11-13 17:47:49,985 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-11-13 17:47:49,986 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ldv_unregister_chrdev_159Err0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_usb_gadget__class_registration_with_usb_gadgetErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 42 more)] === [2021-11-13 17:47:49,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:47:49,986 INFO L85 PathProgramCache]: Analyzing trace with hash -1258330100, now seen corresponding path program 1 times [2021-11-13 17:47:49,986 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:47:49,987 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1385425255] [2021-11-13 17:47:49,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:47:49,987 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:47:50,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:47:50,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-13 17:47:50,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:47:50,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-11-13 17:47:50,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:47:50,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:47:50,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:47:50,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 17:47:50,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:47:50,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-11-13 17:47:50,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:47:50,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2021-11-13 17:47:50,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:47:50,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:47:50,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:47:50,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 17:47:50,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:47:50,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-13 17:47:50,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:47:50,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2021-11-13 17:47:50,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:47:50,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2021-11-13 17:47:50,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:47:50,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-13 17:47:50,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:47:50,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:47:50,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:47:50,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-13 17:47:50,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:47:50,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-11-13 17:47:50,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:47:50,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-11-13 17:47:50,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:47:50,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-11-13 17:47:50,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:47:50,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-11-13 17:47:50,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:47:50,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-11-13 17:47:50,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:47:50,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:47:50,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:47:50,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-11-13 17:47:50,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:47:50,670 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 140 trivial. 0 not checked. [2021-11-13 17:47:50,671 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:47:50,671 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1385425255] [2021-11-13 17:47:50,671 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1385425255] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 17:47:50,671 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:47:50,671 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-13 17:47:50,672 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1301408393] [2021-11-13 17:47:50,672 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 17:47:50,672 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-13 17:47:50,672 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:47:50,673 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-13 17:47:50,673 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-13 17:47:50,674 INFO L87 Difference]: Start difference. First operand 75228 states and 109502 transitions. Second operand has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-11-13 17:47:52,731 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:47:55,020 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.29s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []