./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 35987657 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 0.2.2-?-3598765 [2022-07-21 15:37:44,926 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-21 15:37:44,928 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-21 15:37:44,959 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-21 15:37:44,960 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-21 15:37:44,961 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-21 15:37:44,964 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-21 15:37:44,966 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-21 15:37:44,967 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-21 15:37:44,970 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-21 15:37:44,976 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-21 15:37:44,977 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-21 15:37:44,978 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-21 15:37:44,979 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-21 15:37:44,980 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-21 15:37:44,984 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-21 15:37:44,984 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-21 15:37:44,985 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-21 15:37:44,986 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-21 15:37:44,990 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-21 15:37:44,991 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-21 15:37:44,992 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-21 15:37:44,993 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-21 15:37:44,994 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-21 15:37:44,995 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-21 15:37:45,000 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-21 15:37:45,000 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-21 15:37:45,000 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-21 15:37:45,001 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-21 15:37:45,001 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-21 15:37:45,002 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-21 15:37:45,002 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-21 15:37:45,003 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-21 15:37:45,004 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-21 15:37:45,005 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-21 15:37:45,006 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-21 15:37:45,006 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-21 15:37:45,006 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-21 15:37:45,006 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-21 15:37:45,007 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-21 15:37:45,007 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-21 15:37:45,008 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-21 15:37:45,014 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-21 15:37:45,038 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-21 15:37:45,039 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-21 15:37:45,039 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-21 15:37:45,039 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-21 15:37:45,040 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-21 15:37:45,040 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-21 15:37:45,040 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-21 15:37:45,040 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-21 15:37:45,041 INFO L138 SettingsManager]: * Use SBE=true [2022-07-21 15:37:45,041 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-21 15:37:45,041 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-21 15:37:45,042 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-21 15:37:45,042 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-21 15:37:45,042 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-21 15:37:45,042 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-21 15:37:45,042 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-21 15:37:45,042 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-21 15:37:45,043 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-21 15:37:45,043 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-21 15:37:45,043 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-21 15:37:45,043 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-21 15:37:45,043 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 15:37:45,043 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-21 15:37:45,044 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-21 15:37:45,044 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-21 15:37:45,044 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-21 15:37:45,044 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-21 15:37:45,044 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-21 15:37:45,044 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-21 15:37:45,044 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-21 15:37:45,045 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:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e8c1c69a9209f2e1e672b4301b3aeef542d8617026686dc57b4ac44c2de1cbfb [2022-07-21 15:37:45,277 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-21 15:37:45,302 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-21 15:37:45,304 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-21 15:37:45,304 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-21 15:37:45,305 INFO L275 PluginConnector]: CDTParser initialized [2022-07-21 15:37:45,306 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i [2022-07-21 15:37:45,355 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/08d7dc0f9/2932aa78337641cd8cba9d4ee2edb4cc/FLAG9931b145c [2022-07-21 15:37:46,092 INFO L306 CDTParser]: Found 1 translation units. [2022-07-21 15:37:46,093 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i [2022-07-21 15:37:46,143 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/08d7dc0f9/2932aa78337641cd8cba9d4ee2edb4cc/FLAG9931b145c [2022-07-21 15:37:46,382 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/08d7dc0f9/2932aa78337641cd8cba9d4ee2edb4cc [2022-07-21 15:37:46,384 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-21 15:37:46,385 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-21 15:37:46,387 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-21 15:37:46,387 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-21 15:37:46,389 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-21 15:37:46,389 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 03:37:46" (1/1) ... [2022-07-21 15:37:46,390 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4802fbc6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:37:46, skipping insertion in model container [2022-07-21 15:37:46,390 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 03:37:46" (1/1) ... [2022-07-21 15:37:46,411 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-21 15:37:46,541 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-21 15:37:49,566 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[489935,489948] [2022-07-21 15:37:49,569 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[490080,490093] [2022-07-21 15:37:49,570 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[490226,490239] [2022-07-21 15:37:49,571 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[490391,490404] [2022-07-21 15:37:49,572 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[490549,490562] [2022-07-21 15:37:49,580 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[490707,490720] [2022-07-21 15:37:49,580 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[490865,490878] [2022-07-21 15:37:49,581 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[491025,491038] [2022-07-21 15:37:49,581 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[491184,491197] [2022-07-21 15:37:49,581 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[491323,491336] [2022-07-21 15:37:49,582 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[491465,491478] [2022-07-21 15:37:49,582 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[491614,491627] [2022-07-21 15:37:49,582 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[491753,491766] [2022-07-21 15:37:49,583 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[491908,491921] [2022-07-21 15:37:49,583 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[492068,492081] [2022-07-21 15:37:49,586 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[492219,492232] [2022-07-21 15:37:49,586 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[492370,492383] [2022-07-21 15:37:49,586 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[492522,492535] [2022-07-21 15:37:49,587 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[492671,492684] [2022-07-21 15:37:49,587 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[492819,492832] [2022-07-21 15:37:49,587 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[492976,492989] [2022-07-21 15:37:49,588 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[493125,493138] [2022-07-21 15:37:49,589 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[493281,493294] [2022-07-21 15:37:49,589 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[493434,493447] [2022-07-21 15:37:49,590 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[493580,493593] [2022-07-21 15:37:49,591 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[493723,493736] [2022-07-21 15:37:49,591 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[493875,493888] [2022-07-21 15:37:49,591 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[494021,494034] [2022-07-21 15:37:49,592 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[494166,494179] [2022-07-21 15:37:49,592 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[494320,494333] [2022-07-21 15:37:49,594 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[494471,494484] [2022-07-21 15:37:49,594 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[494626,494639] [2022-07-21 15:37:49,594 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[494778,494791] [2022-07-21 15:37:49,594 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[494933,494946] [2022-07-21 15:37:49,595 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[495097,495110] [2022-07-21 15:37:49,595 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[495253,495266] [2022-07-21 15:37:49,596 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[495417,495430] [2022-07-21 15:37:49,596 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[495559,495572] [2022-07-21 15:37:49,596 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[495717,495730] [2022-07-21 15:37:49,597 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[495884,495897] [2022-07-21 15:37:49,597 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[496043,496056] [2022-07-21 15:37:49,597 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[496202,496215] [2022-07-21 15:37:49,597 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[496351,496364] [2022-07-21 15:37:49,598 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[496498,496511] [2022-07-21 15:37:49,598 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[496637,496650] [2022-07-21 15:37:49,599 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[496800,496813] [2022-07-21 15:37:49,599 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[496966,496979] [2022-07-21 15:37:49,600 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[497130,497143] [2022-07-21 15:37:49,600 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[497295,497308] [2022-07-21 15:37:49,600 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[497460,497473] [2022-07-21 15:37:49,600 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[497626,497639] [2022-07-21 15:37:49,601 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[497791,497804] [2022-07-21 15:37:49,601 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[497958,497971] [2022-07-21 15:37:49,601 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[498118,498131] [2022-07-21 15:37:49,602 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[498280,498293] [2022-07-21 15:37:49,602 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[498439,498452] [2022-07-21 15:37:49,602 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[498585,498598] [2022-07-21 15:37:49,602 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[498728,498741] [2022-07-21 15:37:49,603 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[498872,498885] [2022-07-21 15:37:49,603 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[499015,499028] [2022-07-21 15:37:49,603 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[499159,499172] [2022-07-21 15:37:49,604 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[499300,499313] [2022-07-21 15:37:49,604 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[499438,499451] [2022-07-21 15:37:49,605 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[499596,499609] [2022-07-21 15:37:49,605 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[499755,499768] [2022-07-21 15:37:49,605 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[499911,499924] [2022-07-21 15:37:49,606 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[500060,500073] [2022-07-21 15:37:49,606 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[500212,500225] [2022-07-21 15:37:49,606 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[500363,500376] [2022-07-21 15:37:49,607 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[500512,500525] [2022-07-21 15:37:49,607 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[500664,500677] [2022-07-21 15:37:49,607 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[500812,500825] [2022-07-21 15:37:49,608 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[500965,500978] [2022-07-21 15:37:49,608 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[501116,501129] [2022-07-21 15:37:49,608 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[501266,501279] [2022-07-21 15:37:49,608 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[501413,501426] [2022-07-21 15:37:49,609 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[501564,501577] [2022-07-21 15:37:49,609 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[501715,501728] [2022-07-21 15:37:49,610 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[501863,501876] [2022-07-21 15:37:49,610 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[502029,502042] [2022-07-21 15:37:49,611 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[502198,502211] [2022-07-21 15:37:49,611 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[502365,502378] [2022-07-21 15:37:49,611 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[502533,502546] [2022-07-21 15:37:49,612 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[502683,502696] [2022-07-21 15:37:49,612 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[502830,502843] [2022-07-21 15:37:49,612 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[502991,503004] [2022-07-21 15:37:49,612 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[503161,503174] [2022-07-21 15:37:49,613 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[503323,503336] [2022-07-21 15:37:49,638 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 15:37:49,674 INFO L203 MainTranslator]: Completed pre-run [2022-07-21 15:37:49,955 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[489935,489948] [2022-07-21 15:37:49,957 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[490080,490093] [2022-07-21 15:37:49,961 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[490226,490239] [2022-07-21 15:37:49,961 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[490391,490404] [2022-07-21 15:37:49,961 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[490549,490562] [2022-07-21 15:37:49,962 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[490707,490720] [2022-07-21 15:37:49,962 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[490865,490878] [2022-07-21 15:37:49,963 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[491025,491038] [2022-07-21 15:37:49,963 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[491184,491197] [2022-07-21 15:37:49,963 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[491323,491336] [2022-07-21 15:37:49,964 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[491465,491478] [2022-07-21 15:37:49,964 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[491614,491627] [2022-07-21 15:37:49,967 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[491753,491766] [2022-07-21 15:37:49,967 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[491908,491921] [2022-07-21 15:37:49,967 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[492068,492081] [2022-07-21 15:37:49,967 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[492219,492232] [2022-07-21 15:37:49,968 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[492370,492383] [2022-07-21 15:37:49,968 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[492522,492535] [2022-07-21 15:37:49,968 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[492671,492684] [2022-07-21 15:37:49,968 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[492819,492832] [2022-07-21 15:37:49,969 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[492976,492989] [2022-07-21 15:37:49,969 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[493125,493138] [2022-07-21 15:37:49,969 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[493281,493294] [2022-07-21 15:37:49,969 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[493434,493447] [2022-07-21 15:37:49,970 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[493580,493593] [2022-07-21 15:37:49,970 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[493723,493736] [2022-07-21 15:37:49,970 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[493875,493888] [2022-07-21 15:37:49,970 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[494021,494034] [2022-07-21 15:37:49,971 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[494166,494179] [2022-07-21 15:37:49,971 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[494320,494333] [2022-07-21 15:37:49,971 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[494471,494484] [2022-07-21 15:37:49,971 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[494626,494639] [2022-07-21 15:37:49,972 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[494778,494791] [2022-07-21 15:37:49,972 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[494933,494946] [2022-07-21 15:37:49,972 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[495097,495110] [2022-07-21 15:37:49,973 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[495253,495266] [2022-07-21 15:37:49,973 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[495417,495430] [2022-07-21 15:37:49,973 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[495559,495572] [2022-07-21 15:37:49,973 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[495717,495730] [2022-07-21 15:37:49,974 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[495884,495897] [2022-07-21 15:37:49,975 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[496043,496056] [2022-07-21 15:37:49,975 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[496202,496215] [2022-07-21 15:37:49,975 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[496351,496364] [2022-07-21 15:37:49,975 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[496498,496511] [2022-07-21 15:37:49,976 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[496637,496650] [2022-07-21 15:37:49,976 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[496800,496813] [2022-07-21 15:37:49,976 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[496966,496979] [2022-07-21 15:37:49,976 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[497130,497143] [2022-07-21 15:37:49,977 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[497295,497308] [2022-07-21 15:37:49,977 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[497460,497473] [2022-07-21 15:37:49,977 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[497626,497639] [2022-07-21 15:37:49,977 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[497791,497804] [2022-07-21 15:37:49,978 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[497958,497971] [2022-07-21 15:37:49,978 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[498118,498131] [2022-07-21 15:37:49,978 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[498280,498293] [2022-07-21 15:37:49,978 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[498439,498452] [2022-07-21 15:37:49,979 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[498585,498598] [2022-07-21 15:37:49,979 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[498728,498741] [2022-07-21 15:37:49,979 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[498872,498885] [2022-07-21 15:37:49,979 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[499015,499028] [2022-07-21 15:37:49,980 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[499159,499172] [2022-07-21 15:37:49,981 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[499300,499313] [2022-07-21 15:37:49,982 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[499438,499451] [2022-07-21 15:37:49,983 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[499596,499609] [2022-07-21 15:37:49,984 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[499755,499768] [2022-07-21 15:37:49,986 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[499911,499924] [2022-07-21 15:37:49,986 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[500060,500073] [2022-07-21 15:37:49,987 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[500212,500225] [2022-07-21 15:37:49,987 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[500363,500376] [2022-07-21 15:37:49,988 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[500512,500525] [2022-07-21 15:37:49,988 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[500664,500677] [2022-07-21 15:37:49,988 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[500812,500825] [2022-07-21 15:37:49,992 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[500965,500978] [2022-07-21 15:37:49,992 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[501116,501129] [2022-07-21 15:37:49,993 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[501266,501279] [2022-07-21 15:37:49,993 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[501413,501426] [2022-07-21 15:37:49,993 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[501564,501577] [2022-07-21 15:37:49,993 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[501715,501728] [2022-07-21 15:37:49,994 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[501863,501876] [2022-07-21 15:37:49,995 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[502029,502042] [2022-07-21 15:37:49,995 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[502198,502211] [2022-07-21 15:37:49,995 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[502365,502378] [2022-07-21 15:37:49,996 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[502533,502546] [2022-07-21 15:37:49,996 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[502683,502696] [2022-07-21 15:37:49,996 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[502830,502843] [2022-07-21 15:37:49,996 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[502991,503004] [2022-07-21 15:37:49,997 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[503161,503174] [2022-07-21 15:37:49,997 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i[503323,503336] [2022-07-21 15:37:50,000 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 15:37:50,214 INFO L208 MainTranslator]: Completed translation [2022-07-21 15:37:50,214 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:37:50 WrapperNode [2022-07-21 15:37:50,215 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-21 15:37:50,215 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-21 15:37:50,216 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-21 15:37:50,216 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-21 15:37:50,220 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:37:50" (1/1) ... [2022-07-21 15:37:50,308 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:37:50" (1/1) ... [2022-07-21 15:37:50,487 INFO L137 Inliner]: procedures = 776, calls = 2915, calls flagged for inlining = 349, calls inlined = 276, statements flattened = 7326 [2022-07-21 15:37:50,488 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-21 15:37:50,489 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-21 15:37:50,489 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-21 15:37:50,489 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-21 15:37:50,495 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:37:50" (1/1) ... [2022-07-21 15:37:50,495 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:37:50" (1/1) ... [2022-07-21 15:37:50,553 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:37:50" (1/1) ... [2022-07-21 15:37:50,558 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:37:50" (1/1) ... [2022-07-21 15:37:50,661 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:37:50" (1/1) ... [2022-07-21 15:37:50,682 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:37:50" (1/1) ... [2022-07-21 15:37:50,711 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:37:50" (1/1) ... [2022-07-21 15:37:50,743 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-21 15:37:50,744 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-21 15:37:50,744 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-21 15:37:50,744 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-21 15:37:50,745 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:37:50" (1/1) ... [2022-07-21 15:37:50,750 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 15:37:50,757 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 15:37:50,769 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-21 15:37:50,776 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-21 15:37:50,795 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int_nonpositive [2022-07-21 15:37:50,795 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int_nonpositive [2022-07-21 15:37:50,795 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2022-07-21 15:37:50,796 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_skb [2022-07-21 15:37:50,796 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_skb [2022-07-21 15:37:50,796 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_head_init [2022-07-21 15:37:50,796 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_head_init [2022-07-21 15:37:50,796 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_shutdown_interface [2022-07-21 15:37:50,796 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_shutdown_interface [2022-07-21 15:37:50,796 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_destroy_interface [2022-07-21 15:37:50,796 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_destroy_interface [2022-07-21 15:37:50,796 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-07-21 15:37:50,797 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-07-21 15:37:50,797 INFO L130 BoogieDeclarations]: Found specification of procedure bpf_prog_destroy [2022-07-21 15:37:50,797 INFO L138 BoogieDeclarations]: Found implementation of procedure bpf_prog_destroy [2022-07-21 15:37:50,797 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_push [2022-07-21 15:37:50,797 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_push [2022-07-21 15:37:50,797 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_mmc_sdio_func_check_final_state [2022-07-21 15:37:50,797 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_mmc_sdio_func_check_final_state [2022-07-21 15:37:50,797 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-07-21 15:37:50,797 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-07-21 15:37:50,798 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_lib_idr__double_init [2022-07-21 15:37:50,798 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_lib_idr__double_init [2022-07-21 15:37:50,798 INFO L130 BoogieDeclarations]: Found specification of procedure skb_peek [2022-07-21 15:37:50,798 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_peek [2022-07-21 15:37:50,798 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_empty [2022-07-21 15:37:50,798 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_empty [2022-07-21 15:37:50,798 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_request_check_final_state [2022-07-21 15:37:50,798 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_request_check_final_state [2022-07-21 15:37:50,798 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_bh [2022-07-21 15:37:50,799 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_bh [2022-07-21 15:37:50,799 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-07-21 15:37:50,799 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-07-21 15:37:50,799 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_bh_check_final_state [2022-07-21 15:37:50,799 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_bh_check_final_state [2022-07-21 15:37:50,799 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-21 15:37:50,799 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_genhd_check_final_state [2022-07-21 15:37:50,799 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_genhd_check_final_state [2022-07-21 15:37:50,799 INFO L130 BoogieDeclarations]: Found specification of procedure skb_headroom [2022-07-21 15:37:50,800 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_headroom [2022-07-21 15:37:50,800 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_output_wakeup [2022-07-21 15:37:50,800 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_output_wakeup [2022-07-21 15:37:50,800 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2022-07-21 15:37:50,800 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2022-07-21 15:37:50,800 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_srcu_check_final_state [2022-07-21 15:37:50,800 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_srcu_check_final_state [2022-07-21 15:37:50,800 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_open [2022-07-21 15:37:50,800 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_open [2022-07-21 15:37:50,801 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-21 15:37:50,801 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2022-07-21 15:37:50,801 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2022-07-21 15:37:50,801 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-21 15:37:50,801 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_lib_idr__not_initialized [2022-07-21 15:37:50,801 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_lib_idr__not_initialized [2022-07-21 15:37:50,801 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_rwlock_read_unlock [2022-07-21 15:37:50,801 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_rwlock_read_unlock [2022-07-21 15:37:50,801 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-07-21 15:37:50,802 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-07-21 15:37:50,802 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-21 15:37:50,802 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-07-21 15:37:50,802 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2022-07-21 15:37:50,802 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2022-07-21 15:37:50,802 INFO L130 BoogieDeclarations]: Found specification of procedure skb_headlen [2022-07-21 15:37:50,802 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_headlen [2022-07-21 15:37:50,802 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2022-07-21 15:37:50,803 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2022-07-21 15:37:50,803 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_tail [2022-07-21 15:37:50,803 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_tail [2022-07-21 15:37:50,803 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2022-07-21 15:37:50,803 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2022-07-21 15:37:50,803 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_ioctl [2022-07-21 15:37:50,803 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_ioctl [2022-07-21 15:37:50,803 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_destroy_channel [2022-07-21 15:37:50,803 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_destroy_channel [2022-07-21 15:37:50,804 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_198 [2022-07-21 15:37:50,804 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_198 [2022-07-21 15:37:50,804 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-21 15:37:50,804 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-21 15:37:50,804 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-07-21 15:37:50,804 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-07-21 15:37:50,804 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-07-21 15:37:50,804 INFO L130 BoogieDeclarations]: Found specification of procedure skb_push [2022-07-21 15:37:50,804 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_push [2022-07-21 15:37:50,805 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_xmit_process [2022-07-21 15:37:50,805 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_xmit_process [2022-07-21 15:37:50,805 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_unlink [2022-07-21 15:37:50,805 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_unlink [2022-07-21 15:37:50,805 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2022-07-21 15:37:50,805 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2022-07-21 15:37:50,805 INFO L130 BoogieDeclarations]: Found specification of procedure put_unaligned_be16 [2022-07-21 15:37:50,805 INFO L138 BoogieDeclarations]: Found implementation of procedure put_unaligned_be16 [2022-07-21 15:37:50,805 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-07-21 15:37:50,806 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-07-21 15:37:50,806 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_sock_check_final_state [2022-07-21 15:37:50,806 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_sock_check_final_state [2022-07-21 15:37:50,806 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_gadget_check_final_state [2022-07-21 15:37:50,806 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_gadget_check_final_state [2022-07-21 15:37:50,806 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-21 15:37:50,806 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-07-21 15:37:50,806 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-07-21 15:37:50,807 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_fs_sysfs_check_final_state [2022-07-21 15:37:50,807 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_fs_sysfs_check_final_state [2022-07-21 15:37:50,807 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_drivers_base_class__double_registration [2022-07-21 15:37:50,807 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_drivers_base_class__double_registration [2022-07-21 15:37:50,807 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-21 15:37:50,807 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_send_frame [2022-07-21 15:37:50,807 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_send_frame [2022-07-21 15:37:50,807 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_receive_error [2022-07-21 15:37:50,807 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_receive_error [2022-07-21 15:37:50,807 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_find_unit [2022-07-21 15:37:50,808 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_find_unit [2022-07-21 15:37:50,808 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_module_module_put [2022-07-21 15:37:50,808 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_module_module_put [2022-07-21 15:37:50,808 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_lib_idr_idr_alloc_p [2022-07-21 15:37:50,808 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_lib_idr_idr_alloc_p [2022-07-21 15:37:50,808 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-07-21 15:37:50,808 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-07-21 15:37:50,808 INFO L130 BoogieDeclarations]: Found specification of procedure find_compressor [2022-07-21 15:37:50,808 INFO L138 BoogieDeclarations]: Found implementation of procedure find_compressor [2022-07-21 15:37:50,809 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_pernet [2022-07-21 15:37:50,809 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_pernet [2022-07-21 15:37:50,809 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-07-21 15:37:50,809 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-07-21 15:37:50,809 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_dev_init [2022-07-21 15:37:50,809 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_dev_init [2022-07-21 15:37:50,809 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2022-07-21 15:37:50,809 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2022-07-21 15:37:50,809 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_check_final_state [2022-07-21 15:37:50,810 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_check_final_state [2022-07-21 15:37:50,810 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_urb_check_final_state [2022-07-21 15:37:50,810 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_urb_check_final_state [2022-07-21 15:37:50,810 INFO L130 BoogieDeclarations]: Found specification of procedure slhc_free [2022-07-21 15:37:50,810 INFO L138 BoogieDeclarations]: Found implementation of procedure slhc_free [2022-07-21 15:37:50,810 INFO L130 BoogieDeclarations]: Found specification of procedure get_unaligned_be16 [2022-07-21 15:37:50,810 INFO L138 BoogieDeclarations]: Found implementation of procedure get_unaligned_be16 [2022-07-21 15:37:50,810 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2022-07-21 15:37:50,810 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2022-07-21 15:37:50,810 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-21 15:37:50,811 INFO L130 BoogieDeclarations]: Found specification of procedure skb_pull [2022-07-21 15:37:50,811 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_pull [2022-07-21 15:37:50,811 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-07-21 15:37:50,811 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-07-21 15:37:50,811 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_ccp_closed [2022-07-21 15:37:50,811 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_ccp_closed [2022-07-21 15:37:50,811 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec [2022-07-21 15:37:50,811 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec [2022-07-21 15:37:50,811 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2022-07-21 15:37:50,812 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2022-07-21 15:37:50,812 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_lock_all_ppp_mutex_of_ppp_net [2022-07-21 15:37:50,812 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_lock_all_ppp_mutex_of_ppp_net [2022-07-21 15:37:50,812 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_usb_gadget__chrdev_registration_with_usb_gadget [2022-07-21 15:37:50,812 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_usb_gadget__chrdev_registration_with_usb_gadget [2022-07-21 15:37:50,812 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_usb_gadget__class_registration_with_usb_gadget [2022-07-21 15:37:50,812 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_usb_gadget__class_registration_with_usb_gadget [2022-07-21 15:37:50,812 INFO L130 BoogieDeclarations]: Found specification of procedure find_comp_entry [2022-07-21 15:37:50,812 INFO L138 BoogieDeclarations]: Found implementation of procedure find_comp_entry [2022-07-21 15:37:50,813 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_coherent_check_final_state [2022-07-21 15:37:50,813 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_coherent_check_final_state [2022-07-21 15:37:50,813 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-07-21 15:37:50,813 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-07-21 15:37:50,813 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_chrdev_159 [2022-07-21 15:37:50,813 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_chrdev_159 [2022-07-21 15:37:50,813 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-21 15:37:50,813 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-21 15:37:50,813 INFO L130 BoogieDeclarations]: Found specification of procedure unit_find [2022-07-21 15:37:50,813 INFO L138 BoogieDeclarations]: Found implementation of procedure unit_find [2022-07-21 15:37:50,814 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_arch_io_check_final_state [2022-07-21 15:37:50,814 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_arch_io_check_final_state [2022-07-21 15:37:50,814 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_module_check_final_state [2022-07-21 15:37:50,814 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_module_check_final_state [2022-07-21 15:37:50,814 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-07-21 15:37:50,814 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-07-21 15:37:50,814 INFO L130 BoogieDeclarations]: Found specification of procedure get_filter [2022-07-21 15:37:50,814 INFO L138 BoogieDeclarations]: Found implementation of procedure get_filter [2022-07-21 15:37:50,814 INFO L130 BoogieDeclarations]: Found specification of procedure bpf_prog_create [2022-07-21 15:37:50,815 INFO L138 BoogieDeclarations]: Found implementation of procedure bpf_prog_create [2022-07-21 15:37:50,815 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-07-21 15:37:50,815 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-07-21 15:37:50,815 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec_and_test [2022-07-21 15:37:50,815 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec_and_test [2022-07-21 15:37:50,815 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2022-07-21 15:37:50,815 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2022-07-21 15:37:50,815 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-07-21 15:37:50,815 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-07-21 15:37:50,815 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_queue_check_final_state [2022-07-21 15:37:50,815 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_queue_check_final_state [2022-07-21 15:37:50,816 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-21 15:37:50,816 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_rwlock_write_unlock [2022-07-21 15:37:50,816 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_rwlock_write_unlock [2022-07-21 15:37:50,816 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2022-07-21 15:37:50,816 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2022-07-21 15:37:50,816 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_channel_push [2022-07-21 15:37:50,816 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_channel_push [2022-07-21 15:37:50,816 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-07-21 15:37:50,816 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-07-21 15:37:50,816 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_197 [2022-07-21 15:37:50,817 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_197 [2022-07-21 15:37:50,817 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-07-21 15:37:50,817 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2022-07-21 15:37:50,817 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2022-07-21 15:37:50,817 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_bh_153 [2022-07-21 15:37:50,817 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_bh_153 [2022-07-21 15:37:50,817 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-07-21 15:37:50,817 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-07-21 15:37:50,817 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-07-21 15:37:50,817 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_in_interrupt_context [2022-07-21 15:37:50,817 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_in_interrupt_context [2022-07-21 15:37:50,818 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_after_alloc [2022-07-21 15:37:50,818 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_after_alloc [2022-07-21 15:37:50,818 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_register_reset_error_counter [2022-07-21 15:37:50,818 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_register_reset_error_counter [2022-07-21 15:37:50,818 INFO L130 BoogieDeclarations]: Found specification of procedure skb_cloned [2022-07-21 15:37:50,818 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_cloned [2022-07-21 15:37:50,818 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_do_recv [2022-07-21 15:37:50,818 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_do_recv [2022-07-21 15:37:50,818 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_bh_166 [2022-07-21 15:37:50,818 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_bh_166 [2022-07-21 15:37:50,818 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_lib_idr__more_at_exit [2022-07-21 15:37:50,819 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_lib_idr__more_at_exit [2022-07-21 15:37:50,819 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2022-07-21 15:37:50,819 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2022-07-21 15:37:50,819 INFO L130 BoogieDeclarations]: Found specification of procedure proto_to_npindex [2022-07-21 15:37:50,819 INFO L138 BoogieDeclarations]: Found implementation of procedure proto_to_npindex [2022-07-21 15:37:50,819 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_bh_131 [2022-07-21 15:37:50,819 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_bh_131 [2022-07-21 15:37:50,819 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_bh_132 [2022-07-21 15:37:50,819 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_bh_132 [2022-07-21 15:37:50,819 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_fs_char_dev__double_registration [2022-07-21 15:37:50,820 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_fs_char_dev__double_registration [2022-07-21 15:37:50,820 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_lib_idr_check_final_state [2022-07-21 15:37:50,820 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_lib_idr_check_final_state [2022-07-21 15:37:50,820 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_purge [2022-07-21 15:37:50,820 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_purge [2022-07-21 15:37:50,820 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_unlock_ppp_mutex [2022-07-21 15:37:50,820 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_unlock_ppp_mutex [2022-07-21 15:37:50,820 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_lib_idr__destroyed_before_usage [2022-07-21 15:37:50,820 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_lib_idr__destroyed_before_usage [2022-07-21 15:37:50,820 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_rwlock_write_lock [2022-07-21 15:37:50,820 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_rwlock_write_lock [2022-07-21 15:37:50,821 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_init_net [2022-07-21 15:37:50,821 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_init_net [2022-07-21 15:37:50,821 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-07-21 15:37:50,821 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-07-21 15:37:50,821 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-07-21 15:37:50,821 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-07-21 15:37:50,821 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2022-07-21 15:37:50,821 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2022-07-21 15:37:50,821 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_register_reset_error_counter [2022-07-21 15:37:50,821 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_register_reset_error_counter [2022-07-21 15:37:50,822 INFO L130 BoogieDeclarations]: Found specification of procedure pskb_may_pull [2022-07-21 15:37:50,822 INFO L138 BoogieDeclarations]: Found implementation of procedure pskb_may_pull [2022-07-21 15:37:50,822 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_ccp_peek [2022-07-21 15:37:50,822 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_ccp_peek [2022-07-21 15:37:50,822 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_bh [2022-07-21 15:37:50,822 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_bh [2022-07-21 15:37:50,822 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~int~TO~int [2022-07-21 15:37:50,822 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~int~TO~int [2022-07-21 15:37:50,822 INFO L130 BoogieDeclarations]: Found specification of procedure skb_dequeue [2022-07-21 15:37:50,822 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_dequeue [2022-07-21 15:37:50,822 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-07-21 15:37:50,823 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-07-21 15:37:50,823 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-07-21 15:37:50,823 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_setup [2022-07-21 15:37:50,823 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_setup [2022-07-21 15:37:50,823 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-07-21 15:37:50,823 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-07-21 15:37:50,823 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2022-07-21 15:37:50,823 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2022-07-21 15:37:50,823 INFO L130 BoogieDeclarations]: Found specification of procedure init_ppp_file [2022-07-21 15:37:50,823 INFO L138 BoogieDeclarations]: Found implementation of procedure init_ppp_file [2022-07-21 15:37:50,824 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-07-21 15:37:50,824 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-07-21 15:37:50,824 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_release [2022-07-21 15:37:50,824 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_release [2022-07-21 15:37:50,824 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2022-07-21 15:37:50,824 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2022-07-21 15:37:50,824 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_unlock_all_ppp_mutex_of_ppp_net [2022-07-21 15:37:50,824 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_unlock_all_ppp_mutex_of_ppp_net [2022-07-21 15:37:50,824 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-21 15:37:50,824 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2022-07-21 15:37:50,824 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2022-07-21 15:37:50,825 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_bh_167 [2022-07-21 15:37:50,825 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_bh_167 [2022-07-21 15:37:50,825 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_rwlock_read_lock [2022-07-21 15:37:50,825 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_rwlock_read_lock [2022-07-21 15:37:50,825 INFO L130 BoogieDeclarations]: Found specification of procedure kfree_skb [2022-07-21 15:37:50,825 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree_skb [2022-07-21 15:37:50,825 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2022-07-21 15:37:50,825 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2022-07-21 15:37:50,825 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_rtnetlink_check_final_state [2022-07-21 15:37:50,825 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_rtnetlink_check_final_state [2022-07-21 15:37:50,826 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_bh_154 [2022-07-21 15:37:50,826 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_bh_154 [2022-07-21 15:37:50,826 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-07-21 15:37:50,826 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-07-21 15:37:50,826 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_pernet_device [2022-07-21 15:37:50,826 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_pernet_device [2022-07-21 15:37:50,826 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_disconnect_channel [2022-07-21 15:37:50,826 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_disconnect_channel [2022-07-21 15:37:50,826 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_lock_ppp_mutex [2022-07-21 15:37:50,826 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_lock_ppp_mutex [2022-07-21 15:37:50,826 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2022-07-21 15:37:50,827 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2022-07-21 15:37:50,827 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-07-21 15:37:50,827 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-07-21 15:37:50,827 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_bh_133 [2022-07-21 15:37:50,827 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_bh_133 [2022-07-21 15:37:50,827 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_exit_net [2022-07-21 15:37:50,827 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_exit_net [2022-07-21 15:37:50,827 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_bh_134 [2022-07-21 15:37:50,827 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_bh_134 [2022-07-21 15:37:50,827 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_unregister_channel [2022-07-21 15:37:50,828 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_unregister_channel [2022-07-21 15:37:50,828 INFO L130 BoogieDeclarations]: Found specification of procedure net_generic [2022-07-21 15:37:50,828 INFO L138 BoogieDeclarations]: Found implementation of procedure net_generic [2022-07-21 15:37:50,828 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_rwlock_check_final_state [2022-07-21 15:37:50,828 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_rwlock_check_final_state [2022-07-21 15:37:50,828 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-07-21 15:37:50,828 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-07-21 15:37:50,828 INFO L130 BoogieDeclarations]: Found specification of procedure unit_put [2022-07-21 15:37:50,828 INFO L138 BoogieDeclarations]: Found implementation of procedure unit_put [2022-07-21 15:37:50,828 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_receive_nonmp_frame [2022-07-21 15:37:50,828 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_receive_nonmp_frame [2022-07-21 15:37:50,829 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_fs_char_dev_check_final_state [2022-07-21 15:37:50,829 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_fs_char_dev_check_final_state [2022-07-21 15:37:50,829 INFO L130 BoogieDeclarations]: Found specification of procedure net_ratelimit [2022-07-21 15:37:50,829 INFO L138 BoogieDeclarations]: Found implementation of procedure net_ratelimit [2022-07-21 15:37:50,829 INFO L130 BoogieDeclarations]: Found specification of procedure dev_alloc_skb [2022-07-21 15:37:50,829 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_alloc_skb [2022-07-21 15:37:50,829 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_drivers_base_class_check_final_state [2022-07-21 15:37:50,829 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_drivers_base_class_check_final_state [2022-07-21 15:37:50,829 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2022-07-21 15:37:50,829 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2022-07-21 15:37:50,830 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2022-07-21 15:37:50,830 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2022-07-21 15:37:50,830 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~$Pointer$ [2022-07-21 15:37:50,830 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~$Pointer$ [2022-07-21 15:37:50,830 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2022-07-21 15:37:50,830 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2022-07-21 15:37:50,830 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_long_read [2022-07-21 15:37:50,830 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_long_read [2022-07-21 15:37:50,830 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-07-21 15:37:50,830 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-07-21 15:37:50,830 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_sched_check_final_state [2022-07-21 15:37:50,831 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_sched_check_final_state [2022-07-21 15:37:50,831 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_register_net_channel [2022-07-21 15:37:50,831 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_register_net_channel [2022-07-21 15:37:50,831 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_mp_explode [2022-07-21 15:37:50,831 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_mp_explode [2022-07-21 15:37:50,831 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-07-21 15:37:50,831 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-07-21 15:37:50,831 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_poll [2022-07-21 15:37:50,831 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_poll [2022-07-21 15:37:50,831 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-21 15:37:50,832 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2022-07-21 15:37:50,832 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2022-07-21 15:37:51,578 INFO L234 CfgBuilder]: Building ICFG [2022-07-21 15:37:51,583 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-21 15:37:51,727 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-07-21 15:37:54,614 INFO L275 CfgBuilder]: Performing block encoding [2022-07-21 15:37:54,641 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-21 15:37:54,643 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2022-07-21 15:37:54,646 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 03:37:54 BoogieIcfgContainer [2022-07-21 15:37:54,646 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-21 15:37:54,647 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-21 15:37:54,648 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-21 15:37:54,649 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-21 15:37:54,650 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 03:37:46" (1/3) ... [2022-07-21 15:37:54,650 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ccc62ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 03:37:54, skipping insertion in model container [2022-07-21 15:37:54,650 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:37:50" (2/3) ... [2022-07-21 15:37:54,651 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ccc62ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 03:37:54, skipping insertion in model container [2022-07-21 15:37:54,651 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 03:37:54" (3/3) ... [2022-07-21 15:37:54,652 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.0-rc1---drivers--net--ppp--ppp_generic.ko.cil.i [2022-07-21 15:37:54,661 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-21 15:37:54,661 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 44 error locations. [2022-07-21 15:37:54,730 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-21 15:37:54,734 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=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, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@31e3ab8d, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@8b0be0f [2022-07-21 15:37:54,734 INFO L358 AbstractCegarLoop]: Starting to check reachability of 44 error locations. [2022-07-21 15:37:54,742 INFO L276 IsEmpty]: Start isEmpty. Operand has 2688 states, 1812 states have (on average 1.3344370860927153) internal successors, (2418), 1931 states have internal predecessors, (2418), 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) [2022-07-21 15:37:54,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-07-21 15:37:54,747 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 15:37:54,748 INFO L195 NwaCegarLoop]: 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] [2022-07-21 15:37:54,748 INFO L420 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)] === [2022-07-21 15:37:54,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 15:37:54,751 INFO L85 PathProgramCache]: Analyzing trace with hash -557576269, now seen corresponding path program 1 times [2022-07-21 15:37:54,757 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 15:37:54,757 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [751528264] [2022-07-21 15:37:54,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 15:37:54,758 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 15:37:55,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:37:55,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 15:37:55,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:37:55,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-21 15:37:55,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:37:55,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 15:37:55,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:37:55,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 15:37:55,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:37:55,212 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-07-21 15:37:55,213 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 15:37:55,213 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [751528264] [2022-07-21 15:37:55,213 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [751528264] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 15:37:55,213 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 15:37:55,213 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-21 15:37:55,214 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1073530210] [2022-07-21 15:37:55,215 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 15:37:55,217 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 15:37:55,217 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 15:37:55,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 15:37:55,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-21 15:37:55,239 INFO L87 Difference]: Start difference. First operand has 2688 states, 1812 states have (on average 1.3344370860927153) internal successors, (2418), 1931 states have internal predecessors, (2418), 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) [2022-07-21 15:37:55,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 15:37:55,570 INFO L93 Difference]: Finished difference Result 7914 states and 11535 transitions. [2022-07-21 15:37:55,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-21 15:37:55,574 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 [2022-07-21 15:37:55,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 15:37:55,612 INFO L225 Difference]: With dead ends: 7914 [2022-07-21 15:37:55,613 INFO L226 Difference]: Without dead ends: 5221 [2022-07-21 15:37:55,639 INFO L412 NwaCegarLoop]: 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 [2022-07-21 15:37:55,643 INFO L413 NwaCegarLoop]: 6719 mSDtfsCounter, 3604 mSDsluCounter, 16942 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3605 SdHoareTripleChecker+Valid, 23661 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-21 15:37:55,643 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3605 Valid, 23661 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 15:37:55,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5221 states. [2022-07-21 15:37:55,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5221 to 5128. [2022-07-21 15:37:55,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5128 states, 3478 states have (on average 1.288671650373778) internal successors, (4482), 3665 states have internal predecessors, (4482), 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) [2022-07-21 15:37:55,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5128 states to 5128 states and 7030 transitions. [2022-07-21 15:37:55,874 INFO L78 Accepts]: Start accepts. Automaton has 5128 states and 7030 transitions. Word has length 34 [2022-07-21 15:37:55,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 15:37:55,874 INFO L495 AbstractCegarLoop]: Abstraction has 5128 states and 7030 transitions. [2022-07-21 15:37:55,875 INFO L496 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) [2022-07-21 15:37:55,875 INFO L276 IsEmpty]: Start isEmpty. Operand 5128 states and 7030 transitions. [2022-07-21 15:37:55,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-07-21 15:37:55,877 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 15:37:55,877 INFO L195 NwaCegarLoop]: 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] [2022-07-21 15:37:55,877 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-21 15:37:55,877 INFO L420 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)] === [2022-07-21 15:37:55,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 15:37:55,878 INFO L85 PathProgramCache]: Analyzing trace with hash -969627705, now seen corresponding path program 1 times [2022-07-21 15:37:55,878 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 15:37:55,878 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1806396708] [2022-07-21 15:37:55,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 15:37:55,878 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 15:37:55,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:37:56,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 15:37:56,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:37:56,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-21 15:37:56,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:37:56,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 15:37:56,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:37:56,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 15:37:56,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:37:56,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-21 15:37:56,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:37:56,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 15:37:56,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:37:56,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 15:37:56,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:37:56,105 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-07-21 15:37:56,105 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 15:37:56,105 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1806396708] [2022-07-21 15:37:56,105 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1806396708] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 15:37:56,105 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 15:37:56,105 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-21 15:37:56,106 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1724760440] [2022-07-21 15:37:56,106 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 15:37:56,107 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 15:37:56,107 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 15:37:56,107 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 15:37:56,107 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-21 15:37:56,107 INFO L87 Difference]: Start difference. First operand 5128 states and 7030 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) [2022-07-21 15:37:56,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 15:37:56,234 INFO L93 Difference]: Finished difference Result 5128 states and 7030 transitions. [2022-07-21 15:37:56,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-21 15:37:56,234 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 [2022-07-21 15:37:56,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 15:37:56,257 INFO L225 Difference]: With dead ends: 5128 [2022-07-21 15:37:56,258 INFO L226 Difference]: Without dead ends: 5126 [2022-07-21 15:37:56,260 INFO L412 NwaCegarLoop]: 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 [2022-07-21 15:37:56,261 INFO L413 NwaCegarLoop]: 3591 mSDtfsCounter, 3584 mSDsluCounter, 7179 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3585 SdHoareTripleChecker+Valid, 10770 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-21 15:37:56,261 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3585 Valid, 10770 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 15:37:56,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5126 states. [2022-07-21 15:37:56,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5126 to 5126. [2022-07-21 15:37:56,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5126 states, 3477 states have (on average 1.288179465056083) internal successors, (4479), 3663 states have internal predecessors, (4479), 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) [2022-07-21 15:37:56,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5126 states to 5126 states and 7027 transitions. [2022-07-21 15:37:56,427 INFO L78 Accepts]: Start accepts. Automaton has 5126 states and 7027 transitions. Word has length 53 [2022-07-21 15:37:56,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 15:37:56,427 INFO L495 AbstractCegarLoop]: Abstraction has 5126 states and 7027 transitions. [2022-07-21 15:37:56,427 INFO L496 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) [2022-07-21 15:37:56,428 INFO L276 IsEmpty]: Start isEmpty. Operand 5126 states and 7027 transitions. [2022-07-21 15:37:56,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-07-21 15:37:56,429 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 15:37:56,429 INFO L195 NwaCegarLoop]: 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] [2022-07-21 15:37:56,429 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-21 15:37:56,430 INFO L420 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)] === [2022-07-21 15:37:56,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 15:37:56,430 INFO L85 PathProgramCache]: Analyzing trace with hash -66606166, now seen corresponding path program 1 times [2022-07-21 15:37:56,430 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 15:37:56,430 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1443351114] [2022-07-21 15:37:56,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 15:37:56,431 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 15:37:56,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:37:56,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 15:37:56,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:37:56,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-21 15:37:56,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:37:56,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 15:37:56,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:37:56,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-21 15:37:56,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:37:56,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 15:37:56,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:37:56,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-21 15:37:56,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:37:56,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-07-21 15:37:56,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:37:56,653 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-07-21 15:37:56,654 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 15:37:56,654 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1443351114] [2022-07-21 15:37:56,654 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1443351114] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 15:37:56,654 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 15:37:56,654 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-21 15:37:56,654 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [324338659] [2022-07-21 15:37:56,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 15:37:56,655 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-21 15:37:56,655 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 15:37:56,655 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-21 15:37:56,655 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-21 15:37:56,655 INFO L87 Difference]: Start difference. First operand 5126 states and 7027 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) [2022-07-21 15:38:03,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 15:38:03,170 INFO L93 Difference]: Finished difference Result 5484 states and 7555 transitions. [2022-07-21 15:38:03,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-21 15:38:03,170 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 [2022-07-21 15:38:03,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 15:38:03,190 INFO L225 Difference]: With dead ends: 5484 [2022-07-21 15:38:03,190 INFO L226 Difference]: Without dead ends: 5482 [2022-07-21 15:38:03,191 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2022-07-21 15:38:03,192 INFO L413 NwaCegarLoop]: 3140 mSDtfsCounter, 6728 mSDsluCounter, 838 mSDsCounter, 0 mSdLazyCounter, 4394 mSolverCounterSat, 3595 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6847 SdHoareTripleChecker+Valid, 3978 SdHoareTripleChecker+Invalid, 7989 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3595 IncrementalHoareTripleChecker+Valid, 4394 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2022-07-21 15:38:03,192 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6847 Valid, 3978 Invalid, 7989 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3595 Valid, 4394 Invalid, 0 Unknown, 0 Unchecked, 6.2s Time] [2022-07-21 15:38:03,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5482 states. [2022-07-21 15:38:03,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5482 to 5124. [2022-07-21 15:38:03,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5124 states, 3476 states have (on average 1.287686996547756) internal successors, (4476), 3661 states have internal predecessors, (4476), 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) [2022-07-21 15:38:03,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5124 states to 5124 states and 7024 transitions. [2022-07-21 15:38:03,348 INFO L78 Accepts]: Start accepts. Automaton has 5124 states and 7024 transitions. Word has length 52 [2022-07-21 15:38:03,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 15:38:03,350 INFO L495 AbstractCegarLoop]: Abstraction has 5124 states and 7024 transitions. [2022-07-21 15:38:03,350 INFO L496 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) [2022-07-21 15:38:03,350 INFO L276 IsEmpty]: Start isEmpty. Operand 5124 states and 7024 transitions. [2022-07-21 15:38:03,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-07-21 15:38:03,356 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 15:38:03,356 INFO L195 NwaCegarLoop]: 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] [2022-07-21 15:38:03,356 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-21 15:38:03,357 INFO L420 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)] === [2022-07-21 15:38:03,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 15:38:03,357 INFO L85 PathProgramCache]: Analyzing trace with hash 1401725819, now seen corresponding path program 1 times [2022-07-21 15:38:03,357 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 15:38:03,357 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1510718085] [2022-07-21 15:38:03,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 15:38:03,357 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 15:38:03,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:38:03,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 15:38:03,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:38:03,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-21 15:38:03,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:38:03,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 15:38:03,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:38:03,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-21 15:38:03,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:38:03,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 15:38:03,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:38:03,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-21 15:38:03,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:38:03,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-07-21 15:38:03,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:38:03,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-07-21 15:38:03,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:38:03,570 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-07-21 15:38:03,570 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 15:38:03,570 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1510718085] [2022-07-21 15:38:03,570 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1510718085] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 15:38:03,570 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 15:38:03,570 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-21 15:38:03,571 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1778050403] [2022-07-21 15:38:03,571 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 15:38:03,571 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-21 15:38:03,571 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 15:38:03,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-21 15:38:03,572 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-21 15:38:03,572 INFO L87 Difference]: Start difference. First operand 5124 states and 7024 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) [2022-07-21 15:38:08,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 15:38:08,904 INFO L93 Difference]: Finished difference Result 5482 states and 7552 transitions. [2022-07-21 15:38:08,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-21 15:38:08,904 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 [2022-07-21 15:38:08,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 15:38:08,924 INFO L225 Difference]: With dead ends: 5482 [2022-07-21 15:38:08,924 INFO L226 Difference]: Without dead ends: 5480 [2022-07-21 15:38:08,926 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2022-07-21 15:38:08,926 INFO L413 NwaCegarLoop]: 3153 mSDtfsCounter, 6706 mSDsluCounter, 838 mSDsCounter, 0 mSdLazyCounter, 4407 mSolverCounterSat, 3574 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6824 SdHoareTripleChecker+Valid, 3991 SdHoareTripleChecker+Invalid, 7981 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3574 IncrementalHoareTripleChecker+Valid, 4407 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2022-07-21 15:38:08,926 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6824 Valid, 3991 Invalid, 7981 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3574 Valid, 4407 Invalid, 0 Unknown, 0 Unchecked, 5.1s Time] [2022-07-21 15:38:08,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5480 states. [2022-07-21 15:38:09,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5480 to 5122. [2022-07-21 15:38:09,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5122 states, 3475 states have (on average 1.2871942446043165) internal successors, (4473), 3659 states have internal predecessors, (4473), 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) [2022-07-21 15:38:09,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5122 states to 5122 states and 7021 transitions. [2022-07-21 15:38:09,101 INFO L78 Accepts]: Start accepts. Automaton has 5122 states and 7021 transitions. Word has length 58 [2022-07-21 15:38:09,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 15:38:09,101 INFO L495 AbstractCegarLoop]: Abstraction has 5122 states and 7021 transitions. [2022-07-21 15:38:09,102 INFO L496 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) [2022-07-21 15:38:09,102 INFO L276 IsEmpty]: Start isEmpty. Operand 5122 states and 7021 transitions. [2022-07-21 15:38:09,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-07-21 15:38:09,103 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 15:38:09,103 INFO L195 NwaCegarLoop]: 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] [2022-07-21 15:38:09,104 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-21 15:38:09,104 INFO L420 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)] === [2022-07-21 15:38:09,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 15:38:09,104 INFO L85 PathProgramCache]: Analyzing trace with hash 69306552, now seen corresponding path program 1 times [2022-07-21 15:38:09,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 15:38:09,105 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2029063744] [2022-07-21 15:38:09,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 15:38:09,105 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 15:38:09,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:38:09,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 15:38:09,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:38:09,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-21 15:38:09,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:38:09,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 15:38:09,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:38:09,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-21 15:38:09,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:38:09,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 15:38:09,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:38:09,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-21 15:38:09,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:38:09,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-07-21 15:38:09,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:38:09,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-07-21 15:38:09,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:38:09,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-07-21 15:38:09,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:38:09,281 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-07-21 15:38:09,281 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 15:38:09,281 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2029063744] [2022-07-21 15:38:09,282 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2029063744] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 15:38:09,282 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 15:38:09,282 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-21 15:38:09,282 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [411754048] [2022-07-21 15:38:09,282 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 15:38:09,283 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-21 15:38:09,283 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 15:38:09,284 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-21 15:38:09,284 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-21 15:38:09,284 INFO L87 Difference]: Start difference. First operand 5122 states and 7021 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) [2022-07-21 15:38:14,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 15:38:14,613 INFO L93 Difference]: Finished difference Result 5480 states and 7549 transitions. [2022-07-21 15:38:14,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-21 15:38:14,614 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 [2022-07-21 15:38:14,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 15:38:14,645 INFO L225 Difference]: With dead ends: 5480 [2022-07-21 15:38:14,645 INFO L226 Difference]: Without dead ends: 5478 [2022-07-21 15:38:14,647 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2022-07-21 15:38:14,648 INFO L413 NwaCegarLoop]: 3114 mSDtfsCounter, 6758 mSDsluCounter, 838 mSDsCounter, 0 mSdLazyCounter, 4368 mSolverCounterSat, 3598 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6875 SdHoareTripleChecker+Valid, 3952 SdHoareTripleChecker+Invalid, 7966 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3598 IncrementalHoareTripleChecker+Valid, 4368 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2022-07-21 15:38:14,648 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6875 Valid, 3952 Invalid, 7966 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3598 Valid, 4368 Invalid, 0 Unknown, 0 Unchecked, 5.1s Time] [2022-07-21 15:38:14,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5478 states. [2022-07-21 15:38:14,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5478 to 5120. [2022-07-21 15:38:14,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5120 states, 3474 states have (on average 1.2867012089810017) internal successors, (4470), 3657 states have internal predecessors, (4470), 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) [2022-07-21 15:38:14,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5120 states to 5120 states and 7018 transitions. [2022-07-21 15:38:14,799 INFO L78 Accepts]: Start accepts. Automaton has 5120 states and 7018 transitions. Word has length 64 [2022-07-21 15:38:14,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 15:38:14,799 INFO L495 AbstractCegarLoop]: Abstraction has 5120 states and 7018 transitions. [2022-07-21 15:38:14,799 INFO L496 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) [2022-07-21 15:38:14,800 INFO L276 IsEmpty]: Start isEmpty. Operand 5120 states and 7018 transitions. [2022-07-21 15:38:14,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-07-21 15:38:14,801 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 15:38:14,801 INFO L195 NwaCegarLoop]: 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] [2022-07-21 15:38:14,801 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-21 15:38:14,801 INFO L420 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)] === [2022-07-21 15:38:14,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 15:38:14,802 INFO L85 PathProgramCache]: Analyzing trace with hash -556843342, now seen corresponding path program 1 times [2022-07-21 15:38:14,802 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 15:38:14,803 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1411596213] [2022-07-21 15:38:14,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 15:38:14,803 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 15:38:14,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:38:14,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 15:38:14,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:38:14,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-21 15:38:14,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:38:14,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 15:38:14,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:38:14,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-21 15:38:14,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:38:14,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 15:38:14,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:38:14,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-21 15:38:14,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:38:14,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-07-21 15:38:14,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:38:14,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-21 15:38:14,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:38:14,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-07-21 15:38:14,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:38:14,969 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-07-21 15:38:14,969 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 15:38:14,969 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1411596213] [2022-07-21 15:38:14,970 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1411596213] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 15:38:14,970 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 15:38:14,970 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-21 15:38:14,970 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1973005894] [2022-07-21 15:38:14,970 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 15:38:14,970 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-21 15:38:14,970 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 15:38:14,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-21 15:38:14,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-07-21 15:38:14,971 INFO L87 Difference]: Start difference. First operand 5120 states and 7018 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) [2022-07-21 15:38:24,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 15:38:24,445 INFO L93 Difference]: Finished difference Result 6474 states and 8694 transitions. [2022-07-21 15:38:24,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-21 15:38:24,445 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 [2022-07-21 15:38:24,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 15:38:24,465 INFO L225 Difference]: With dead ends: 6474 [2022-07-21 15:38:24,465 INFO L226 Difference]: Without dead ends: 6265 [2022-07-21 15:38:24,469 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=58, Invalid=182, Unknown=0, NotChecked=0, Total=240 [2022-07-21 15:38:24,469 INFO L413 NwaCegarLoop]: 3181 mSDtfsCounter, 5148 mSDsluCounter, 1844 mSDsCounter, 0 mSdLazyCounter, 14966 mSolverCounterSat, 2728 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5267 SdHoareTripleChecker+Valid, 5025 SdHoareTripleChecker+Invalid, 17694 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2728 IncrementalHoareTripleChecker+Valid, 14966 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.1s IncrementalHoareTripleChecker+Time [2022-07-21 15:38:24,469 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5267 Valid, 5025 Invalid, 17694 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2728 Valid, 14966 Invalid, 0 Unknown, 0 Unchecked, 9.1s Time] [2022-07-21 15:38:24,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6265 states. [2022-07-21 15:38:24,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6265 to 5498. [2022-07-21 15:38:24,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5498 states, 3733 states have (on average 1.2777926600589338) internal successors, (4770), 3924 states have internal predecessors, (4770), 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) [2022-07-21 15:38:24,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5498 states to 5498 states and 7482 transitions. [2022-07-21 15:38:24,668 INFO L78 Accepts]: Start accepts. Automaton has 5498 states and 7482 transitions. Word has length 66 [2022-07-21 15:38:24,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 15:38:24,669 INFO L495 AbstractCegarLoop]: Abstraction has 5498 states and 7482 transitions. [2022-07-21 15:38:24,669 INFO L496 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) [2022-07-21 15:38:24,669 INFO L276 IsEmpty]: Start isEmpty. Operand 5498 states and 7482 transitions. [2022-07-21 15:38:24,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2022-07-21 15:38:24,670 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 15:38:24,670 INFO L195 NwaCegarLoop]: 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] [2022-07-21 15:38:24,670 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-21 15:38:24,670 INFO L420 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)] === [2022-07-21 15:38:24,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 15:38:24,671 INFO L85 PathProgramCache]: Analyzing trace with hash -1292387120, now seen corresponding path program 1 times [2022-07-21 15:38:24,671 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 15:38:24,671 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [689106607] [2022-07-21 15:38:24,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 15:38:24,672 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 15:38:24,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:38:24,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 15:38:24,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:38:24,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-21 15:38:24,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:38:24,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 15:38:24,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:38:24,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-21 15:38:24,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:38:24,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 15:38:24,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:38:24,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-21 15:38:24,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:38:24,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-07-21 15:38:24,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:38:24,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-07-21 15:38:24,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:38:24,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-07-21 15:38:24,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:38:24,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-07-21 15:38:24,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:38:24,826 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-07-21 15:38:24,826 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 15:38:24,826 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [689106607] [2022-07-21 15:38:24,826 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [689106607] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 15:38:24,826 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 15:38:24,826 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-21 15:38:24,827 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1950252374] [2022-07-21 15:38:24,827 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 15:38:24,827 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-21 15:38:24,827 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 15:38:24,827 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-21 15:38:24,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-21 15:38:24,828 INFO L87 Difference]: Start difference. First operand 5498 states and 7482 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) [2022-07-21 15:38:30,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 15:38:30,124 INFO L93 Difference]: Finished difference Result 5856 states and 8010 transitions. [2022-07-21 15:38:30,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-21 15:38:30,124 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 [2022-07-21 15:38:30,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 15:38:30,138 INFO L225 Difference]: With dead ends: 5856 [2022-07-21 15:38:30,138 INFO L226 Difference]: Without dead ends: 5854 [2022-07-21 15:38:30,140 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2022-07-21 15:38:30,140 INFO L413 NwaCegarLoop]: 3184 mSDtfsCounter, 6626 mSDsluCounter, 838 mSDsCounter, 0 mSdLazyCounter, 4438 mSolverCounterSat, 3571 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6742 SdHoareTripleChecker+Valid, 4022 SdHoareTripleChecker+Invalid, 8009 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3571 IncrementalHoareTripleChecker+Valid, 4438 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2022-07-21 15:38:30,140 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6742 Valid, 4022 Invalid, 8009 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3571 Valid, 4438 Invalid, 0 Unknown, 0 Unchecked, 5.0s Time] [2022-07-21 15:38:30,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5854 states. [2022-07-21 15:38:30,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5854 to 5496. [2022-07-21 15:38:30,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5496 states, 3732 states have (on average 1.277331189710611) internal successors, (4767), 3922 states have internal predecessors, (4767), 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) [2022-07-21 15:38:30,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5496 states to 5496 states and 7479 transitions. [2022-07-21 15:38:30,306 INFO L78 Accepts]: Start accepts. Automaton has 5496 states and 7479 transitions. Word has length 70 [2022-07-21 15:38:30,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 15:38:30,307 INFO L495 AbstractCegarLoop]: Abstraction has 5496 states and 7479 transitions. [2022-07-21 15:38:30,307 INFO L496 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) [2022-07-21 15:38:30,307 INFO L276 IsEmpty]: Start isEmpty. Operand 5496 states and 7479 transitions. [2022-07-21 15:38:30,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2022-07-21 15:38:30,308 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 15:38:30,308 INFO L195 NwaCegarLoop]: 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] [2022-07-21 15:38:30,308 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-07-21 15:38:30,308 INFO L420 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)] === [2022-07-21 15:38:30,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 15:38:30,309 INFO L85 PathProgramCache]: Analyzing trace with hash 390811223, now seen corresponding path program 1 times [2022-07-21 15:38:30,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 15:38:30,309 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1206384537] [2022-07-21 15:38:30,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 15:38:30,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 15:38:30,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:38:30,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 15:38:30,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:38:30,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-21 15:38:30,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:38:30,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 15:38:30,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:38:30,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-21 15:38:30,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:38:30,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 15:38:30,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:38:30,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-21 15:38:30,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:38:30,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-07-21 15:38:30,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:38:30,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-21 15:38:30,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:38:30,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-07-21 15:38:30,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:38:30,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-07-21 15:38:30,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:38:30,485 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-07-21 15:38:30,485 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 15:38:30,485 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1206384537] [2022-07-21 15:38:30,485 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1206384537] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 15:38:30,485 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 15:38:30,485 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-21 15:38:30,486 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1300372724] [2022-07-21 15:38:30,486 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 15:38:30,486 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-21 15:38:30,486 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 15:38:30,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-21 15:38:30,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-07-21 15:38:30,487 INFO L87 Difference]: Start difference. First operand 5496 states and 7479 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) [2022-07-21 15:38:40,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 15:38:40,288 INFO L93 Difference]: Finished difference Result 6451 states and 8666 transitions. [2022-07-21 15:38:40,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-21 15:38:40,289 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 [2022-07-21 15:38:40,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 15:38:40,306 INFO L225 Difference]: With dead ends: 6451 [2022-07-21 15:38:40,307 INFO L226 Difference]: Without dead ends: 6244 [2022-07-21 15:38:40,310 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=58, Invalid=182, Unknown=0, NotChecked=0, Total=240 [2022-07-21 15:38:40,310 INFO L413 NwaCegarLoop]: 3207 mSDtfsCounter, 5103 mSDsluCounter, 1847 mSDsCounter, 0 mSdLazyCounter, 15072 mSolverCounterSat, 2723 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5221 SdHoareTripleChecker+Valid, 5054 SdHoareTripleChecker+Invalid, 17795 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2723 IncrementalHoareTripleChecker+Valid, 15072 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.4s IncrementalHoareTripleChecker+Time [2022-07-21 15:38:40,310 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5221 Valid, 5054 Invalid, 17795 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2723 Valid, 15072 Invalid, 0 Unknown, 0 Unchecked, 9.4s Time] [2022-07-21 15:38:40,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6244 states. [2022-07-21 15:38:40,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6244 to 5496. [2022-07-21 15:38:40,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5496 states, 3732 states have (on average 1.2770632368703108) internal successors, (4766), 3922 states have internal predecessors, (4766), 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) [2022-07-21 15:38:40,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5496 states to 5496 states and 7478 transitions. [2022-07-21 15:38:40,485 INFO L78 Accepts]: Start accepts. Automaton has 5496 states and 7478 transitions. Word has length 72 [2022-07-21 15:38:40,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 15:38:40,485 INFO L495 AbstractCegarLoop]: Abstraction has 5496 states and 7478 transitions. [2022-07-21 15:38:40,485 INFO L496 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) [2022-07-21 15:38:40,486 INFO L276 IsEmpty]: Start isEmpty. Operand 5496 states and 7478 transitions. [2022-07-21 15:38:40,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2022-07-21 15:38:40,490 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 15:38:40,490 INFO L195 NwaCegarLoop]: 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] [2022-07-21 15:38:40,490 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-07-21 15:38:40,490 INFO L420 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)] === [2022-07-21 15:38:40,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 15:38:40,491 INFO L85 PathProgramCache]: Analyzing trace with hash -2129148711, now seen corresponding path program 1 times [2022-07-21 15:38:40,491 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 15:38:40,491 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1670407566] [2022-07-21 15:38:40,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 15:38:40,491 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 15:38:40,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:38:40,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 15:38:40,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:38:40,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-21 15:38:40,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:38:40,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 15:38:40,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:38:40,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-21 15:38:40,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:38:40,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 15:38:40,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:38:40,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-21 15:38:40,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:38:40,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-07-21 15:38:40,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:38:40,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-21 15:38:40,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:38:40,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-07-21 15:38:40,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:38:40,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-07-21 15:38:40,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:38:40,866 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-07-21 15:38:40,866 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 15:38:40,866 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1670407566] [2022-07-21 15:38:40,867 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1670407566] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 15:38:40,867 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 15:38:40,867 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-07-21 15:38:40,867 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2133377651] [2022-07-21 15:38:40,867 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 15:38:40,868 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-07-21 15:38:40,868 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 15:38:40,868 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-07-21 15:38:40,868 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-07-21 15:38:40,869 INFO L87 Difference]: Start difference. First operand 5496 states and 7478 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) [2022-07-21 15:39:05,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 15:39:05,526 INFO L93 Difference]: Finished difference Result 6635 states and 8931 transitions. [2022-07-21 15:39:05,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-07-21 15:39:05,527 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 [2022-07-21 15:39:05,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 15:39:05,542 INFO L225 Difference]: With dead ends: 6635 [2022-07-21 15:39:05,542 INFO L226 Difference]: Without dead ends: 5959 [2022-07-21 15:39:05,546 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=141, Invalid=729, Unknown=0, NotChecked=0, Total=870 [2022-07-21 15:39:05,547 INFO L413 NwaCegarLoop]: 3154 mSDtfsCounter, 4241 mSDsluCounter, 5048 mSDsCounter, 0 mSdLazyCounter, 45154 mSolverCounterSat, 2658 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4307 SdHoareTripleChecker+Valid, 8202 SdHoareTripleChecker+Invalid, 47812 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2658 IncrementalHoareTripleChecker+Valid, 45154 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 23.9s IncrementalHoareTripleChecker+Time [2022-07-21 15:39:05,548 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4307 Valid, 8202 Invalid, 47812 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2658 Valid, 45154 Invalid, 0 Unknown, 0 Unchecked, 23.9s Time] [2022-07-21 15:39:05,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5959 states. [2022-07-21 15:39:05,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5959 to 5548. [2022-07-21 15:39:05,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5548 states, 3766 states have (on average 1.2745618693574083) internal successors, (4800), 3954 states have internal predecessors, (4800), 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) [2022-07-21 15:39:05,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5548 states to 5548 states and 7548 transitions. [2022-07-21 15:39:05,715 INFO L78 Accepts]: Start accepts. Automaton has 5548 states and 7548 transitions. Word has length 72 [2022-07-21 15:39:05,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 15:39:05,715 INFO L495 AbstractCegarLoop]: Abstraction has 5548 states and 7548 transitions. [2022-07-21 15:39:05,715 INFO L496 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) [2022-07-21 15:39:05,716 INFO L276 IsEmpty]: Start isEmpty. Operand 5548 states and 7548 transitions. [2022-07-21 15:39:05,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-07-21 15:39:05,716 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 15:39:05,717 INFO L195 NwaCegarLoop]: 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] [2022-07-21 15:39:05,717 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-07-21 15:39:05,717 INFO L420 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)] === [2022-07-21 15:39:05,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 15:39:05,717 INFO L85 PathProgramCache]: Analyzing trace with hash -990300831, now seen corresponding path program 1 times [2022-07-21 15:39:05,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 15:39:05,717 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1659869368] [2022-07-21 15:39:05,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 15:39:05,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 15:39:05,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:39:05,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 15:39:05,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:39:05,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-21 15:39:05,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:39:05,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 15:39:05,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:39:05,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-21 15:39:05,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:39:05,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 15:39:05,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:39:05,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-21 15:39:05,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:39:05,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-07-21 15:39:05,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:39:05,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-07-21 15:39:05,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:39:05,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-07-21 15:39:05,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:39:05,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-07-21 15:39:05,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:39:05,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-21 15:39:05,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:39:05,866 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-07-21 15:39:05,866 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 15:39:05,866 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1659869368] [2022-07-21 15:39:05,866 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1659869368] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 15:39:05,867 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 15:39:05,867 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-21 15:39:05,867 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [931939579] [2022-07-21 15:39:05,867 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 15:39:05,867 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-21 15:39:05,867 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 15:39:05,868 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-21 15:39:05,868 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-21 15:39:05,868 INFO L87 Difference]: Start difference. First operand 5548 states and 7548 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) [2022-07-21 15:39:11,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 15:39:11,693 INFO L93 Difference]: Finished difference Result 6938 states and 9271 transitions. [2022-07-21 15:39:11,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-21 15:39:11,696 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 [2022-07-21 15:39:11,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 15:39:11,718 INFO L225 Difference]: With dead ends: 6938 [2022-07-21 15:39:11,718 INFO L226 Difference]: Without dead ends: 6936 [2022-07-21 15:39:11,722 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2022-07-21 15:39:11,722 INFO L413 NwaCegarLoop]: 3388 mSDtfsCounter, 7006 mSDsluCounter, 1200 mSDsCounter, 0 mSdLazyCounter, 5041 mSolverCounterSat, 3686 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7121 SdHoareTripleChecker+Valid, 4588 SdHoareTripleChecker+Invalid, 8727 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3686 IncrementalHoareTripleChecker+Valid, 5041 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2022-07-21 15:39:11,723 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7121 Valid, 4588 Invalid, 8727 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3686 Valid, 5041 Invalid, 0 Unknown, 0 Unchecked, 5.5s Time] [2022-07-21 15:39:11,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6936 states. [2022-07-21 15:39:11,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6936 to 6311. [2022-07-21 15:39:11,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6311 states, 4290 states have (on average 1.2564102564102564) internal successors, (5390), 4490 states have internal predecessors, (5390), 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) [2022-07-21 15:39:11,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6311 states to 6311 states and 8448 transitions. [2022-07-21 15:39:11,936 INFO L78 Accepts]: Start accepts. Automaton has 6311 states and 8448 transitions. Word has length 76 [2022-07-21 15:39:11,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 15:39:11,937 INFO L495 AbstractCegarLoop]: Abstraction has 6311 states and 8448 transitions. [2022-07-21 15:39:11,937 INFO L496 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) [2022-07-21 15:39:11,937 INFO L276 IsEmpty]: Start isEmpty. Operand 6311 states and 8448 transitions. [2022-07-21 15:39:11,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-07-21 15:39:11,939 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 15:39:11,939 INFO L195 NwaCegarLoop]: 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] [2022-07-21 15:39:11,939 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-07-21 15:39:11,940 INFO L420 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)] === [2022-07-21 15:39:11,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 15:39:11,940 INFO L85 PathProgramCache]: Analyzing trace with hash -1133077380, now seen corresponding path program 1 times [2022-07-21 15:39:11,940 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 15:39:11,940 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2098901895] [2022-07-21 15:39:11,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 15:39:11,941 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 15:39:11,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:39:12,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 15:39:12,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:39:12,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-21 15:39:12,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:39:12,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 15:39:12,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:39:12,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-21 15:39:12,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:39:12,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 15:39:12,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:39:12,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-21 15:39:12,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:39:12,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-07-21 15:39:12,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:39:12,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-07-21 15:39:12,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:39:12,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-07-21 15:39:12,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:39:12,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-07-21 15:39:12,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:39:12,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-21 15:39:12,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:39:12,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-07-21 15:39:12,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:39:12,093 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-07-21 15:39:12,093 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 15:39:12,093 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2098901895] [2022-07-21 15:39:12,093 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2098901895] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 15:39:12,093 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 15:39:12,093 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-21 15:39:12,093 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1646278302] [2022-07-21 15:39:12,094 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 15:39:12,094 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-21 15:39:12,094 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 15:39:12,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-21 15:39:12,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-21 15:39:12,095 INFO L87 Difference]: Start difference. First operand 6311 states and 8448 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) [2022-07-21 15:39:22,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 15:39:22,550 INFO L93 Difference]: Finished difference Result 6833 states and 9123 transitions. [2022-07-21 15:39:22,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-21 15:39:22,550 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 [2022-07-21 15:39:22,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 15:39:22,569 INFO L225 Difference]: With dead ends: 6833 [2022-07-21 15:39:22,569 INFO L226 Difference]: Without dead ends: 6831 [2022-07-21 15:39:22,572 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2022-07-21 15:39:22,572 INFO L413 NwaCegarLoop]: 3266 mSDtfsCounter, 10812 mSDsluCounter, 1136 mSDsCounter, 0 mSdLazyCounter, 9217 mSolverCounterSat, 5949 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10968 SdHoareTripleChecker+Valid, 4402 SdHoareTripleChecker+Invalid, 15166 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5949 IncrementalHoareTripleChecker+Valid, 9217 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.0s IncrementalHoareTripleChecker+Time [2022-07-21 15:39:22,572 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10968 Valid, 4402 Invalid, 15166 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5949 Valid, 9217 Invalid, 0 Unknown, 0 Unchecked, 10.0s Time] [2022-07-21 15:39:22,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6831 states. [2022-07-21 15:39:22,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6831 to 6311. [2022-07-21 15:39:22,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6311 states, 4290 states have (on average 1.2561771561771562) internal successors, (5389), 4490 states have internal predecessors, (5389), 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) [2022-07-21 15:39:22,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6311 states to 6311 states and 8447 transitions. [2022-07-21 15:39:22,775 INFO L78 Accepts]: Start accepts. Automaton has 6311 states and 8447 transitions. Word has length 82 [2022-07-21 15:39:22,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 15:39:22,776 INFO L495 AbstractCegarLoop]: Abstraction has 6311 states and 8447 transitions. [2022-07-21 15:39:22,776 INFO L496 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) [2022-07-21 15:39:22,776 INFO L276 IsEmpty]: Start isEmpty. Operand 6311 states and 8447 transitions. [2022-07-21 15:39:22,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2022-07-21 15:39:22,777 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 15:39:22,777 INFO L195 NwaCegarLoop]: 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] [2022-07-21 15:39:22,777 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-07-21 15:39:22,777 INFO L420 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)] === [2022-07-21 15:39:22,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 15:39:22,778 INFO L85 PathProgramCache]: Analyzing trace with hash 1470553012, now seen corresponding path program 1 times [2022-07-21 15:39:22,778 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 15:39:22,778 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [504702842] [2022-07-21 15:39:22,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 15:39:22,778 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 15:39:22,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:39:22,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 15:39:22,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:39:22,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-21 15:39:22,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:39:22,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 15:39:22,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:39:22,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-21 15:39:22,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:39:22,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 15:39:22,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:39:22,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-21 15:39:22,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:39:22,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-07-21 15:39:22,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:39:22,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-07-21 15:39:22,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:39:22,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-07-21 15:39:22,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:39:22,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-07-21 15:39:22,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:39:22,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-21 15:39:22,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:39:22,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-07-21 15:39:22,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:39:22,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-21 15:39:22,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:39:22,923 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-07-21 15:39:22,924 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 15:39:22,924 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [504702842] [2022-07-21 15:39:22,924 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [504702842] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 15:39:22,924 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 15:39:22,924 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-21 15:39:22,924 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1862810222] [2022-07-21 15:39:22,924 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 15:39:22,925 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-21 15:39:22,925 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 15:39:22,925 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-21 15:39:22,925 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-21 15:39:22,926 INFO L87 Difference]: Start difference. First operand 6311 states and 8447 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) [2022-07-21 15:39:28,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 15:39:28,253 INFO L93 Difference]: Finished difference Result 6669 states and 8975 transitions. [2022-07-21 15:39:28,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-21 15:39:28,254 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 [2022-07-21 15:39:28,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 15:39:28,270 INFO L225 Difference]: With dead ends: 6669 [2022-07-21 15:39:28,270 INFO L226 Difference]: Without dead ends: 6667 [2022-07-21 15:39:28,273 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2022-07-21 15:39:28,274 INFO L413 NwaCegarLoop]: 3173 mSDtfsCounter, 6630 mSDsluCounter, 838 mSDsCounter, 0 mSdLazyCounter, 4427 mSolverCounterSat, 3583 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6743 SdHoareTripleChecker+Valid, 4011 SdHoareTripleChecker+Invalid, 8010 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3583 IncrementalHoareTripleChecker+Valid, 4427 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2022-07-21 15:39:28,274 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6743 Valid, 4011 Invalid, 8010 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3583 Valid, 4427 Invalid, 0 Unknown, 0 Unchecked, 5.0s Time] [2022-07-21 15:39:28,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6667 states. [2022-07-21 15:39:28,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6667 to 6309. [2022-07-21 15:39:28,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6309 states, 4289 states have (on average 1.2557705758918163) internal successors, (5386), 4488 states have internal predecessors, (5386), 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) [2022-07-21 15:39:28,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6309 states to 6309 states and 8444 transitions. [2022-07-21 15:39:28,486 INFO L78 Accepts]: Start accepts. Automaton has 6309 states and 8444 transitions. Word has length 88 [2022-07-21 15:39:28,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 15:39:28,486 INFO L495 AbstractCegarLoop]: Abstraction has 6309 states and 8444 transitions. [2022-07-21 15:39:28,486 INFO L496 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) [2022-07-21 15:39:28,486 INFO L276 IsEmpty]: Start isEmpty. Operand 6309 states and 8444 transitions. [2022-07-21 15:39:28,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2022-07-21 15:39:28,488 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 15:39:28,488 INFO L195 NwaCegarLoop]: 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] [2022-07-21 15:39:28,488 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-07-21 15:39:28,489 INFO L420 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)] === [2022-07-21 15:39:28,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 15:39:28,489 INFO L85 PathProgramCache]: Analyzing trace with hash -1697529068, now seen corresponding path program 1 times [2022-07-21 15:39:28,489 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 15:39:28,489 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1203987947] [2022-07-21 15:39:28,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 15:39:28,490 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 15:39:28,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:39:28,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 15:39:28,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:39:28,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-21 15:39:28,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:39:28,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 15:39:28,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:39:28,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-21 15:39:28,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:39:28,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 15:39:28,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:39:28,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-21 15:39:28,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:39:28,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-07-21 15:39:28,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:39:28,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-07-21 15:39:28,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:39:28,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-07-21 15:39:28,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:39:28,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-07-21 15:39:28,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:39:28,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-21 15:39:28,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:39:28,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-07-21 15:39:28,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:39:28,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-21 15:39:28,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:39:28,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-07-21 15:39:28,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:39:28,692 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-07-21 15:39:28,693 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 15:39:28,693 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1203987947] [2022-07-21 15:39:28,693 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1203987947] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 15:39:28,693 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 15:39:28,693 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-21 15:39:28,693 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [579388697] [2022-07-21 15:39:28,693 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 15:39:28,694 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-21 15:39:28,694 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 15:39:28,694 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-21 15:39:28,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-21 15:39:28,694 INFO L87 Difference]: Start difference. First operand 6309 states and 8444 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) [2022-07-21 15:39:39,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 15:39:39,401 INFO L93 Difference]: Finished difference Result 11830 states and 15980 transitions. [2022-07-21 15:39:39,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-21 15:39:39,401 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 [2022-07-21 15:39:39,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 15:39:39,438 INFO L225 Difference]: With dead ends: 11830 [2022-07-21 15:39:39,438 INFO L226 Difference]: Without dead ends: 11828 [2022-07-21 15:39:39,443 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2022-07-21 15:39:39,445 INFO L413 NwaCegarLoop]: 3301 mSDtfsCounter, 9723 mSDsluCounter, 1145 mSDsCounter, 0 mSdLazyCounter, 9180 mSolverCounterSat, 5506 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9876 SdHoareTripleChecker+Valid, 4446 SdHoareTripleChecker+Invalid, 14686 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5506 IncrementalHoareTripleChecker+Valid, 9180 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.2s IncrementalHoareTripleChecker+Time [2022-07-21 15:39:39,445 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9876 Valid, 4446 Invalid, 14686 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5506 Valid, 9180 Invalid, 0 Unknown, 0 Unchecked, 10.2s Time] [2022-07-21 15:39:39,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11828 states. [2022-07-21 15:39:39,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11828 to 10877. [2022-07-21 15:39:39,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10877 states, 7390 states have (on average 1.2543978349120433) internal successors, (9270), 7687 states have internal predecessors, (9270), 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) [2022-07-21 15:39:39,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10877 states to 10877 states and 14664 transitions. [2022-07-21 15:39:39,889 INFO L78 Accepts]: Start accepts. Automaton has 10877 states and 14664 transitions. Word has length 94 [2022-07-21 15:39:39,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 15:39:39,889 INFO L495 AbstractCegarLoop]: Abstraction has 10877 states and 14664 transitions. [2022-07-21 15:39:39,889 INFO L496 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) [2022-07-21 15:39:39,889 INFO L276 IsEmpty]: Start isEmpty. Operand 10877 states and 14664 transitions. [2022-07-21 15:39:39,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-07-21 15:39:39,890 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 15:39:39,891 INFO L195 NwaCegarLoop]: 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] [2022-07-21 15:39:39,892 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-07-21 15:39:39,892 INFO L420 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)] === [2022-07-21 15:39:39,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 15:39:39,893 INFO L85 PathProgramCache]: Analyzing trace with hash 478715272, now seen corresponding path program 1 times [2022-07-21 15:39:39,893 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 15:39:39,894 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1976643024] [2022-07-21 15:39:39,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 15:39:39,895 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 15:39:39,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:39:40,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 15:39:40,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:39:40,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-21 15:39:40,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:39:40,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 15:39:40,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:39:40,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 15:39:40,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:39:40,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-21 15:39:40,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:39:40,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 15:39:40,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:39:40,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 15:39:40,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:39:40,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-07-21 15:39:40,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:39:40,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-21 15:39:40,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:39:40,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-07-21 15:39:40,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:39:40,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-07-21 15:39:40,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:39:40,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 15:39:40,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:39:40,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-07-21 15:39:40,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:39:40,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-07-21 15:39:40,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:39:40,094 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2022-07-21 15:39:40,094 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 15:39:40,094 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1976643024] [2022-07-21 15:39:40,094 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1976643024] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 15:39:40,094 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 15:39:40,094 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-21 15:39:40,094 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2056899965] [2022-07-21 15:39:40,095 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 15:39:40,095 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-07-21 15:39:40,095 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 15:39:40,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-07-21 15:39:40,096 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2022-07-21 15:39:40,096 INFO L87 Difference]: Start difference. First operand 10877 states and 14664 transitions. Second operand has 11 states, 11 states have (on average 4.090909090909091) internal successors, (45), 10 states have internal predecessors, (45), 4 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2022-07-21 15:39:47,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 15:39:47,306 INFO L93 Difference]: Finished difference Result 14084 states and 19363 transitions. [2022-07-21 15:39:47,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-21 15:39:47,306 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.090909090909091) internal successors, (45), 10 states have internal predecessors, (45), 4 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) Word has length 99 [2022-07-21 15:39:47,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 15:39:47,340 INFO L225 Difference]: With dead ends: 14084 [2022-07-21 15:39:47,340 INFO L226 Difference]: Without dead ends: 12430 [2022-07-21 15:39:47,351 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=89, Invalid=217, Unknown=0, NotChecked=0, Total=306 [2022-07-21 15:39:47,352 INFO L413 NwaCegarLoop]: 3771 mSDtfsCounter, 2134 mSDsluCounter, 21599 mSDsCounter, 0 mSdLazyCounter, 12498 mSolverCounterSat, 1334 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2396 SdHoareTripleChecker+Valid, 25370 SdHoareTripleChecker+Invalid, 13832 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1334 IncrementalHoareTripleChecker+Valid, 12498 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2022-07-21 15:39:47,352 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2396 Valid, 25370 Invalid, 13832 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1334 Valid, 12498 Invalid, 0 Unknown, 0 Unchecked, 6.6s Time] [2022-07-21 15:39:47,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12430 states. [2022-07-21 15:39:47,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12430 to 10796. [2022-07-21 15:39:47,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10796 states, 7335 states have (on average 1.2530334014996591) internal successors, (9191), 7632 states have internal predecessors, (9191), 2632 states have call successors, (2632), 783 states have call predecessors, (2632), 792 states have return successors, (2759), 2538 states have call predecessors, (2759), 2630 states have call successors, (2759) [2022-07-21 15:39:47,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10796 states to 10796 states and 14582 transitions. [2022-07-21 15:39:47,874 INFO L78 Accepts]: Start accepts. Automaton has 10796 states and 14582 transitions. Word has length 99 [2022-07-21 15:39:47,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 15:39:47,885 INFO L495 AbstractCegarLoop]: Abstraction has 10796 states and 14582 transitions. [2022-07-21 15:39:47,885 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 4.090909090909091) internal successors, (45), 10 states have internal predecessors, (45), 4 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2022-07-21 15:39:47,885 INFO L276 IsEmpty]: Start isEmpty. Operand 10796 states and 14582 transitions. [2022-07-21 15:39:47,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-07-21 15:39:47,886 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 15:39:47,886 INFO L195 NwaCegarLoop]: 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] [2022-07-21 15:39:47,886 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-07-21 15:39:47,886 INFO L420 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)] === [2022-07-21 15:39:47,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 15:39:47,887 INFO L85 PathProgramCache]: Analyzing trace with hash 762298967, now seen corresponding path program 1 times [2022-07-21 15:39:47,887 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 15:39:47,887 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1730353230] [2022-07-21 15:39:47,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 15:39:47,887 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 15:39:47,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:39:47,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 15:39:47,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:39:47,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-21 15:39:47,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:39:47,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 15:39:47,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:39:47,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-21 15:39:47,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:39:47,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 15:39:47,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:39:47,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-21 15:39:47,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:39:47,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-07-21 15:39:47,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:39:47,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-07-21 15:39:48,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:39:48,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-07-21 15:39:48,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:39:48,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-07-21 15:39:48,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:39:48,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-21 15:39:48,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:39:48,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-07-21 15:39:48,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:39:48,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-21 15:39:48,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:39:48,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-07-21 15:39:48,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:39:48,029 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-07-21 15:39:48,030 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 15:39:48,030 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1730353230] [2022-07-21 15:39:48,030 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1730353230] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 15:39:48,030 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 15:39:48,030 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-21 15:39:48,030 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2078522991] [2022-07-21 15:39:48,030 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 15:39:48,031 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-21 15:39:48,031 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 15:39:48,031 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-21 15:39:48,031 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-21 15:39:48,031 INFO L87 Difference]: Start difference. First operand 10796 states and 14582 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) [2022-07-21 15:39:53,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 15:39:53,642 INFO L93 Difference]: Finished difference Result 11752 states and 15904 transitions. [2022-07-21 15:39:53,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-21 15:39:53,642 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 [2022-07-21 15:39:53,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 15:39:53,669 INFO L225 Difference]: With dead ends: 11752 [2022-07-21 15:39:53,669 INFO L226 Difference]: Without dead ends: 11750 [2022-07-21 15:39:53,674 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2022-07-21 15:39:53,675 INFO L413 NwaCegarLoop]: 3122 mSDtfsCounter, 6765 mSDsluCounter, 838 mSDsCounter, 0 mSdLazyCounter, 4504 mSolverCounterSat, 3636 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6872 SdHoareTripleChecker+Valid, 3960 SdHoareTripleChecker+Invalid, 8140 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3636 IncrementalHoareTripleChecker+Valid, 4504 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2022-07-21 15:39:53,675 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6872 Valid, 3960 Invalid, 8140 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3636 Valid, 4504 Invalid, 0 Unknown, 0 Unchecked, 5.1s Time] [2022-07-21 15:39:53,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11750 states. [2022-07-21 15:39:54,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11750 to 11030. [2022-07-21 15:39:54,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11030 states, 7478 states have (on average 1.2487296068467504) internal successors, (9338), 7774 states have internal predecessors, (9338), 2680 states have call successors, (2680), 827 states have call predecessors, (2680), 836 states have return successors, (2807), 2586 states have call predecessors, (2807), 2678 states have call successors, (2807) [2022-07-21 15:39:54,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11030 states to 11030 states and 14825 transitions. [2022-07-21 15:39:54,154 INFO L78 Accepts]: Start accepts. Automaton has 11030 states and 14825 transitions. Word has length 96 [2022-07-21 15:39:54,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 15:39:54,159 INFO L495 AbstractCegarLoop]: Abstraction has 11030 states and 14825 transitions. [2022-07-21 15:39:54,159 INFO L496 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) [2022-07-21 15:39:54,159 INFO L276 IsEmpty]: Start isEmpty. Operand 11030 states and 14825 transitions. [2022-07-21 15:39:54,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2022-07-21 15:39:54,160 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 15:39:54,160 INFO L195 NwaCegarLoop]: 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] [2022-07-21 15:39:54,160 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-07-21 15:39:54,160 INFO L420 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)] === [2022-07-21 15:39:54,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 15:39:54,161 INFO L85 PathProgramCache]: Analyzing trace with hash 1936689382, now seen corresponding path program 1 times [2022-07-21 15:39:54,161 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 15:39:54,161 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [251444642] [2022-07-21 15:39:54,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 15:39:54,161 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 15:39:54,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:39:54,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 15:39:54,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:39:54,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-21 15:39:54,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:39:54,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 15:39:54,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:39:54,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-21 15:39:54,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:39:54,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 15:39:54,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:39:54,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-21 15:39:54,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:39:54,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-07-21 15:39:54,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:39:54,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-07-21 15:39:54,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:39:54,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-07-21 15:39:54,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:39:54,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-07-21 15:39:54,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:39:54,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-21 15:39:54,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:39:54,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-07-21 15:39:54,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:39:54,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-21 15:39:54,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:39:54,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-07-21 15:39:54,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:39:54,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-21 15:39:54,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:39:54,321 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-07-21 15:39:54,321 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 15:39:54,322 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [251444642] [2022-07-21 15:39:54,323 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [251444642] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 15:39:54,323 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 15:39:54,323 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-21 15:39:54,323 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [765186180] [2022-07-21 15:39:54,323 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 15:39:54,324 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-21 15:39:54,324 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 15:39:54,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-21 15:39:54,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-21 15:39:54,325 INFO L87 Difference]: Start difference. First operand 11030 states and 14825 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) [2022-07-21 15:40:05,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 15:40:05,781 INFO L93 Difference]: Finished difference Result 22733 states and 31150 transitions. [2022-07-21 15:40:05,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-21 15:40:05,782 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 [2022-07-21 15:40:05,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 15:40:05,833 INFO L225 Difference]: With dead ends: 22733 [2022-07-21 15:40:05,833 INFO L226 Difference]: Without dead ends: 22731 [2022-07-21 15:40:05,841 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2022-07-21 15:40:05,841 INFO L413 NwaCegarLoop]: 3267 mSDtfsCounter, 10843 mSDsluCounter, 1145 mSDsCounter, 0 mSdLazyCounter, 9266 mSolverCounterSat, 6066 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10995 SdHoareTripleChecker+Valid, 4412 SdHoareTripleChecker+Invalid, 15332 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6066 IncrementalHoareTripleChecker+Valid, 9266 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.4s IncrementalHoareTripleChecker+Time [2022-07-21 15:40:05,841 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10995 Valid, 4412 Invalid, 15332 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6066 Valid, 9266 Invalid, 0 Unknown, 0 Unchecked, 10.4s Time] [2022-07-21 15:40:05,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22731 states. [2022-07-21 15:40:06,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22731 to 21081. [2022-07-21 15:40:06,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21081 states, 14310 states have (on average 1.253109713487072) internal successors, (17932), 14850 states have internal predecessors, (17932), 5153 states have call successors, (5153), 1559 states have call predecessors, (5153), 1582 states have return successors, (5667), 4979 states have call predecessors, (5667), 5151 states have call successors, (5667) [2022-07-21 15:40:06,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21081 states to 21081 states and 28752 transitions. [2022-07-21 15:40:06,709 INFO L78 Accepts]: Start accepts. Automaton has 21081 states and 28752 transitions. Word has length 102 [2022-07-21 15:40:06,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 15:40:06,709 INFO L495 AbstractCegarLoop]: Abstraction has 21081 states and 28752 transitions. [2022-07-21 15:40:06,709 INFO L496 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) [2022-07-21 15:40:06,709 INFO L276 IsEmpty]: Start isEmpty. Operand 21081 states and 28752 transitions. [2022-07-21 15:40:06,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-07-21 15:40:06,711 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 15:40:06,711 INFO L195 NwaCegarLoop]: 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, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 15:40:06,711 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-07-21 15:40:06,711 INFO L420 AbstractCegarLoop]: === Iteration 17 === 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)] === [2022-07-21 15:40:06,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 15:40:06,712 INFO L85 PathProgramCache]: Analyzing trace with hash -106955744, now seen corresponding path program 1 times [2022-07-21 15:40:06,712 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 15:40:06,712 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [982181064] [2022-07-21 15:40:06,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 15:40:06,712 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 15:40:06,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:40:06,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 15:40:06,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:40:06,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-21 15:40:06,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:40:06,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 15:40:06,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:40:06,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 15:40:06,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:40:06,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-21 15:40:06,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:40:06,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-07-21 15:40:06,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:40:06,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 15:40:06,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:40:06,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 15:40:06,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:40:06,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-21 15:40:06,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:40:06,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-07-21 15:40:06,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:40:06,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-07-21 15:40:06,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:40:06,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-21 15:40:06,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:40:06,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 15:40:06,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:40:06,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-07-21 15:40:06,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:40:06,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-07-21 15:40:06,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:40:06,866 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2022-07-21 15:40:06,866 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 15:40:06,866 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [982181064] [2022-07-21 15:40:06,866 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [982181064] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 15:40:06,867 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 15:40:06,867 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-21 15:40:06,867 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1956553460] [2022-07-21 15:40:06,867 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 15:40:06,867 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-21 15:40:06,867 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 15:40:06,868 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-21 15:40:06,868 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-21 15:40:06,868 INFO L87 Difference]: Start difference. First operand 21081 states and 28752 transitions. Second operand has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-07-21 15:40:11,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 15:40:11,827 INFO L93 Difference]: Finished difference Result 24541 states and 34538 transitions. [2022-07-21 15:40:11,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-21 15:40:11,828 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (14), 3 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 106 [2022-07-21 15:40:11,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 15:40:11,880 INFO L225 Difference]: With dead ends: 24541 [2022-07-21 15:40:11,880 INFO L226 Difference]: Without dead ends: 24539 [2022-07-21 15:40:11,887 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-07-21 15:40:11,888 INFO L413 NwaCegarLoop]: 3751 mSDtfsCounter, 4873 mSDsluCounter, 6704 mSDsCounter, 0 mSdLazyCounter, 4421 mSolverCounterSat, 1682 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5302 SdHoareTripleChecker+Valid, 10455 SdHoareTripleChecker+Invalid, 6103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1682 IncrementalHoareTripleChecker+Valid, 4421 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2022-07-21 15:40:11,888 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5302 Valid, 10455 Invalid, 6103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1682 Valid, 4421 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2022-07-21 15:40:11,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24539 states. [2022-07-21 15:40:12,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24539 to 22435. [2022-07-21 15:40:12,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22435 states, 15299 states have (on average 1.2641349107784823) internal successors, (19340), 15918 states have internal predecessors, (19340), 5445 states have call successors, (5445), 1559 states have call predecessors, (5445), 1656 states have return successors, (6326), 5307 states have call predecessors, (6326), 5443 states have call successors, (6326) [2022-07-21 15:40:12,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22435 states to 22435 states and 31111 transitions. [2022-07-21 15:40:12,849 INFO L78 Accepts]: Start accepts. Automaton has 22435 states and 31111 transitions. Word has length 106 [2022-07-21 15:40:12,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 15:40:12,850 INFO L495 AbstractCegarLoop]: Abstraction has 22435 states and 31111 transitions. [2022-07-21 15:40:12,850 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-07-21 15:40:12,850 INFO L276 IsEmpty]: Start isEmpty. Operand 22435 states and 31111 transitions. [2022-07-21 15:40:12,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2022-07-21 15:40:12,851 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 15:40:12,851 INFO L195 NwaCegarLoop]: 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] [2022-07-21 15:40:12,851 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-07-21 15:40:12,851 INFO L420 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)] === [2022-07-21 15:40:12,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 15:40:12,852 INFO L85 PathProgramCache]: Analyzing trace with hash -753317812, now seen corresponding path program 1 times [2022-07-21 15:40:12,852 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 15:40:12,852 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [41179724] [2022-07-21 15:40:12,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 15:40:12,852 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 15:40:12,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:40:12,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 15:40:12,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:40:12,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-21 15:40:12,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:40:12,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 15:40:12,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:40:12,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-21 15:40:12,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:40:12,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 15:40:12,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:40:12,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-21 15:40:12,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:40:12,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-07-21 15:40:12,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:40:12,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-07-21 15:40:12,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:40:12,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-07-21 15:40:12,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:40:12,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-07-21 15:40:12,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:40:12,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-21 15:40:12,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:40:12,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-07-21 15:40:12,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:40:12,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-21 15:40:12,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:40:13,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-07-21 15:40:13,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:40:13,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-21 15:40:13,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:40:13,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-21 15:40:13,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:40:13,021 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-07-21 15:40:13,021 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 15:40:13,021 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [41179724] [2022-07-21 15:40:13,022 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [41179724] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 15:40:13,022 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 15:40:13,022 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-21 15:40:13,022 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [253621991] [2022-07-21 15:40:13,022 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 15:40:13,023 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-21 15:40:13,023 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 15:40:13,023 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-21 15:40:13,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-21 15:40:13,023 INFO L87 Difference]: Start difference. First operand 22435 states and 31111 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) [2022-07-21 15:40:19,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 15:40:19,836 INFO L93 Difference]: Finished difference Result 23867 states and 33305 transitions. [2022-07-21 15:40:19,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-21 15:40:19,837 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 [2022-07-21 15:40:19,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 15:40:19,903 INFO L225 Difference]: With dead ends: 23867 [2022-07-21 15:40:19,903 INFO L226 Difference]: Without dead ends: 23865 [2022-07-21 15:40:19,916 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2022-07-21 15:40:19,917 INFO L413 NwaCegarLoop]: 3130 mSDtfsCounter, 6690 mSDsluCounter, 838 mSDsCounter, 0 mSdLazyCounter, 4384 mSolverCounterSat, 3577 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6800 SdHoareTripleChecker+Valid, 3968 SdHoareTripleChecker+Invalid, 7961 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3577 IncrementalHoareTripleChecker+Valid, 4384 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2022-07-21 15:40:19,917 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6800 Valid, 3968 Invalid, 7961 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3577 Valid, 4384 Invalid, 0 Unknown, 0 Unchecked, 5.9s Time] [2022-07-21 15:40:19,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23865 states. [2022-07-21 15:40:21,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23865 to 22433. [2022-07-21 15:40:21,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22433 states, 15298 states have (on average 1.264021440711204) internal successors, (19337), 15916 states have internal predecessors, (19337), 5445 states have call successors, (5445), 1559 states have call predecessors, (5445), 1656 states have return successors, (6326), 5307 states have call predecessors, (6326), 5443 states have call successors, (6326) [2022-07-21 15:40:21,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22433 states to 22433 states and 31108 transitions. [2022-07-21 15:40:21,144 INFO L78 Accepts]: Start accepts. Automaton has 22433 states and 31108 transitions. Word has length 108 [2022-07-21 15:40:21,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 15:40:21,145 INFO L495 AbstractCegarLoop]: Abstraction has 22433 states and 31108 transitions. [2022-07-21 15:40:21,145 INFO L496 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) [2022-07-21 15:40:21,145 INFO L276 IsEmpty]: Start isEmpty. Operand 22433 states and 31108 transitions. [2022-07-21 15:40:21,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-07-21 15:40:21,146 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 15:40:21,146 INFO L195 NwaCegarLoop]: 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] [2022-07-21 15:40:21,147 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-07-21 15:40:21,147 INFO L420 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)] === [2022-07-21 15:40:21,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 15:40:21,147 INFO L85 PathProgramCache]: Analyzing trace with hash 585604035, now seen corresponding path program 1 times [2022-07-21 15:40:21,147 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 15:40:21,147 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [876287800] [2022-07-21 15:40:21,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 15:40:21,148 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 15:40:21,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:40:21,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 15:40:21,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:40:21,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-21 15:40:21,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:40:21,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 15:40:21,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:40:21,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-21 15:40:21,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:40:21,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 15:40:21,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:40:21,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-21 15:40:21,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:40:21,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-07-21 15:40:21,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:40:21,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-07-21 15:40:21,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:40:21,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-07-21 15:40:21,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:40:21,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-07-21 15:40:21,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:40:21,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-21 15:40:21,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:40:21,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-07-21 15:40:21,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:40:21,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-21 15:40:21,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:40:21,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-07-21 15:40:21,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:40:21,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-21 15:40:21,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:40:21,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-21 15:40:21,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:40:21,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-21 15:40:21,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:40:21,357 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-07-21 15:40:21,357 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 15:40:21,357 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [876287800] [2022-07-21 15:40:21,357 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [876287800] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 15:40:21,358 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 15:40:21,358 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-21 15:40:21,358 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1319403133] [2022-07-21 15:40:21,358 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 15:40:21,359 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-21 15:40:21,359 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 15:40:21,359 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-21 15:40:21,360 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-21 15:40:21,360 INFO L87 Difference]: Start difference. First operand 22433 states and 31108 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) [2022-07-21 15:40:28,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 15:40:28,060 INFO L93 Difference]: Finished difference Result 23865 states and 33302 transitions. [2022-07-21 15:40:28,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-21 15:40:28,060 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 [2022-07-21 15:40:28,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 15:40:28,118 INFO L225 Difference]: With dead ends: 23865 [2022-07-21 15:40:28,118 INFO L226 Difference]: Without dead ends: 23863 [2022-07-21 15:40:28,127 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2022-07-21 15:40:28,128 INFO L413 NwaCegarLoop]: 3176 mSDtfsCounter, 6594 mSDsluCounter, 838 mSDsCounter, 0 mSdLazyCounter, 4430 mSolverCounterSat, 3568 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6703 SdHoareTripleChecker+Valid, 4014 SdHoareTripleChecker+Invalid, 7998 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3568 IncrementalHoareTripleChecker+Valid, 4430 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2022-07-21 15:40:28,128 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6703 Valid, 4014 Invalid, 7998 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3568 Valid, 4430 Invalid, 0 Unknown, 0 Unchecked, 5.6s Time] [2022-07-21 15:40:28,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23863 states. [2022-07-21 15:40:29,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23863 to 22431. [2022-07-21 15:40:29,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22431 states, 15297 states have (on average 1.2639079558083284) internal successors, (19334), 15914 states have internal predecessors, (19334), 5445 states have call successors, (5445), 1559 states have call predecessors, (5445), 1656 states have return successors, (6326), 5307 states have call predecessors, (6326), 5443 states have call successors, (6326) [2022-07-21 15:40:29,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22431 states to 22431 states and 31105 transitions. [2022-07-21 15:40:29,201 INFO L78 Accepts]: Start accepts. Automaton has 22431 states and 31105 transitions. Word has length 114 [2022-07-21 15:40:29,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 15:40:29,201 INFO L495 AbstractCegarLoop]: Abstraction has 22431 states and 31105 transitions. [2022-07-21 15:40:29,201 INFO L496 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) [2022-07-21 15:40:29,201 INFO L276 IsEmpty]: Start isEmpty. Operand 22431 states and 31105 transitions. [2022-07-21 15:40:29,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2022-07-21 15:40:29,202 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 15:40:29,202 INFO L195 NwaCegarLoop]: 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] [2022-07-21 15:40:29,203 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-07-21 15:40:29,203 INFO L420 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)] === [2022-07-21 15:40:29,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 15:40:29,203 INFO L85 PathProgramCache]: Analyzing trace with hash -1365025461, now seen corresponding path program 1 times [2022-07-21 15:40:29,203 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 15:40:29,203 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [192826332] [2022-07-21 15:40:29,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 15:40:29,204 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 15:40:29,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:40:29,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 15:40:29,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:40:29,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-21 15:40:29,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:40:29,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 15:40:29,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:40:29,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-21 15:40:29,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:40:29,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 15:40:29,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:40:29,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-21 15:40:29,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:40:29,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-07-21 15:40:29,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:40:29,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-07-21 15:40:29,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:40:29,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-07-21 15:40:29,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:40:29,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-07-21 15:40:29,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:40:29,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-21 15:40:29,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:40:29,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-07-21 15:40:29,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:40:29,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-21 15:40:29,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:40:29,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-07-21 15:40:29,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:40:29,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-21 15:40:29,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:40:29,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-21 15:40:29,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:40:29,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-21 15:40:29,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:40:29,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-07-21 15:40:29,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:40:29,369 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-07-21 15:40:29,369 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 15:40:29,369 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [192826332] [2022-07-21 15:40:29,369 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [192826332] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 15:40:29,369 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 15:40:29,369 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-21 15:40:29,369 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [405571046] [2022-07-21 15:40:29,369 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 15:40:29,370 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-21 15:40:29,370 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 15:40:29,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-21 15:40:29,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-21 15:40:29,371 INFO L87 Difference]: Start difference. First operand 22431 states and 31105 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) [2022-07-21 15:40:40,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 15:40:40,315 INFO L93 Difference]: Finished difference Result 38286 states and 54219 transitions. [2022-07-21 15:40:40,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-21 15:40:40,315 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 [2022-07-21 15:40:40,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 15:40:40,434 INFO L225 Difference]: With dead ends: 38286 [2022-07-21 15:40:40,435 INFO L226 Difference]: Without dead ends: 38284 [2022-07-21 15:40:40,452 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2022-07-21 15:40:40,453 INFO L413 NwaCegarLoop]: 3385 mSDtfsCounter, 8170 mSDsluCounter, 1225 mSDsCounter, 0 mSdLazyCounter, 8830 mSolverCounterSat, 4398 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8317 SdHoareTripleChecker+Valid, 4610 SdHoareTripleChecker+Invalid, 13228 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4398 IncrementalHoareTripleChecker+Valid, 8830 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.3s IncrementalHoareTripleChecker+Time [2022-07-21 15:40:40,453 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8317 Valid, 4610 Invalid, 13228 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4398 Valid, 8830 Invalid, 0 Unknown, 0 Unchecked, 9.3s Time] [2022-07-21 15:40:40,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38284 states. [2022-07-21 15:40:41,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38284 to 36407. [2022-07-21 15:40:41,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36407 states, 24862 states have (on average 1.2714182286219935) internal successors, (31610), 25883 states have internal predecessors, (31610), 8744 states have call successors, (8744), 2619 states have call predecessors, (8744), 2768 states have return successors, (11053), 8442 states have call predecessors, (11053), 8742 states have call successors, (11053) [2022-07-21 15:40:42,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36407 states to 36407 states and 51407 transitions. [2022-07-21 15:40:42,149 INFO L78 Accepts]: Start accepts. Automaton has 36407 states and 51407 transitions. Word has length 120 [2022-07-21 15:40:42,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 15:40:42,149 INFO L495 AbstractCegarLoop]: Abstraction has 36407 states and 51407 transitions. [2022-07-21 15:40:42,149 INFO L496 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) [2022-07-21 15:40:42,149 INFO L276 IsEmpty]: Start isEmpty. Operand 36407 states and 51407 transitions. [2022-07-21 15:40:42,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2022-07-21 15:40:42,151 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 15:40:42,151 INFO L195 NwaCegarLoop]: 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, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 15:40:42,151 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-07-21 15:40:42,151 INFO L420 AbstractCegarLoop]: === Iteration 21 === 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)] === [2022-07-21 15:40:42,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 15:40:42,151 INFO L85 PathProgramCache]: Analyzing trace with hash -1657794054, now seen corresponding path program 1 times [2022-07-21 15:40:42,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 15:40:42,152 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1247346221] [2022-07-21 15:40:42,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 15:40:42,152 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 15:40:42,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:40:42,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 15:40:42,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:40:42,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-21 15:40:42,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:40:42,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 15:40:42,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:40:42,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 15:40:42,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:40:42,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-21 15:40:42,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:40:42,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-07-21 15:40:42,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:40:42,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 15:40:42,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:40:42,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 15:40:42,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:40:42,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-21 15:40:42,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:40:42,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-07-21 15:40:42,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:40:42,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-07-21 15:40:42,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:40:42,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-21 15:40:42,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:40:42,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 15:40:42,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:40:42,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-07-21 15:40:42,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:40:42,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-07-21 15:40:42,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:40:42,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-21 15:40:42,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:40:42,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-07-21 15:40:42,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:40:42,342 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2022-07-21 15:40:42,342 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 15:40:42,342 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1247346221] [2022-07-21 15:40:42,342 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1247346221] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 15:40:42,342 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 15:40:42,342 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-21 15:40:42,343 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1333939189] [2022-07-21 15:40:42,343 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 15:40:42,343 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-21 15:40:42,344 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 15:40:42,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-21 15:40:42,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-21 15:40:42,345 INFO L87 Difference]: Start difference. First operand 36407 states and 51407 transitions. Second operand has 6 states, 6 states have (on average 9.0) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-07-21 15:40:48,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 15:40:48,169 INFO L93 Difference]: Finished difference Result 39111 states and 56458 transitions. [2022-07-21 15:40:48,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-21 15:40:48,170 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (16), 3 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 119 [2022-07-21 15:40:48,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 15:40:48,308 INFO L225 Difference]: With dead ends: 39111 [2022-07-21 15:40:48,308 INFO L226 Difference]: Without dead ends: 39109 [2022-07-21 15:40:48,332 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-07-21 15:40:48,333 INFO L413 NwaCegarLoop]: 3606 mSDtfsCounter, 4617 mSDsluCounter, 6522 mSDsCounter, 0 mSdLazyCounter, 3683 mSolverCounterSat, 1610 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5032 SdHoareTripleChecker+Valid, 10128 SdHoareTripleChecker+Invalid, 5293 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1610 IncrementalHoareTripleChecker+Valid, 3683 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2022-07-21 15:40:48,333 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5032 Valid, 10128 Invalid, 5293 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1610 Valid, 3683 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2022-07-21 15:40:48,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39109 states. [2022-07-21 15:40:49,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39109 to 36619. [2022-07-21 15:40:49,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36619 states, 25013 states have (on average 1.2715387998240915) internal successors, (31805), 26049 states have internal predecessors, (31805), 8784 states have call successors, (8784), 2619 states have call predecessors, (8784), 2790 states have return successors, (11172), 8492 states have call predecessors, (11172), 8782 states have call successors, (11172) [2022-07-21 15:40:50,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36619 states to 36619 states and 51761 transitions. [2022-07-21 15:40:50,082 INFO L78 Accepts]: Start accepts. Automaton has 36619 states and 51761 transitions. Word has length 119 [2022-07-21 15:40:50,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 15:40:50,082 INFO L495 AbstractCegarLoop]: Abstraction has 36619 states and 51761 transitions. [2022-07-21 15:40:50,082 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-07-21 15:40:50,083 INFO L276 IsEmpty]: Start isEmpty. Operand 36619 states and 51761 transitions. [2022-07-21 15:40:50,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2022-07-21 15:40:50,084 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 15:40:50,084 INFO L195 NwaCegarLoop]: 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] [2022-07-21 15:40:50,084 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-07-21 15:40:50,084 INFO L420 AbstractCegarLoop]: === Iteration 22 === 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)] === [2022-07-21 15:40:50,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 15:40:50,085 INFO L85 PathProgramCache]: Analyzing trace with hash 1132288611, now seen corresponding path program 1 times [2022-07-21 15:40:50,085 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 15:40:50,085 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [112175227] [2022-07-21 15:40:50,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 15:40:50,085 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 15:40:50,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:40:50,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 15:40:50,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:40:50,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-21 15:40:50,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:40:50,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 15:40:50,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:40:50,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-21 15:40:50,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:40:50,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 15:40:50,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:40:50,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-21 15:40:50,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:40:50,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-07-21 15:40:50,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:40:50,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-07-21 15:40:50,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:40:50,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-07-21 15:40:50,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:40:50,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-07-21 15:40:50,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:40:50,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-21 15:40:50,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:40:50,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-07-21 15:40:50,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:40:50,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-21 15:40:50,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:40:50,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-07-21 15:40:50,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:40:50,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-21 15:40:50,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:40:50,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-21 15:40:50,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:40:50,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-21 15:40:50,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:40:50,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-07-21 15:40:50,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:40:50,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-07-21 15:40:50,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:40:50,271 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-07-21 15:40:50,271 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 15:40:50,271 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [112175227] [2022-07-21 15:40:50,271 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [112175227] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 15:40:50,271 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 15:40:50,271 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-21 15:40:50,272 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [774410707] [2022-07-21 15:40:50,272 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 15:40:50,272 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-21 15:40:50,272 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 15:40:50,273 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-21 15:40:50,273 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-21 15:40:50,273 INFO L87 Difference]: Start difference. First operand 36619 states and 51761 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) [2022-07-21 15:40:58,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 15:40:58,235 INFO L93 Difference]: Finished difference Result 38051 states and 54009 transitions. [2022-07-21 15:40:58,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-21 15:40:58,237 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 [2022-07-21 15:40:58,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 15:40:58,362 INFO L225 Difference]: With dead ends: 38051 [2022-07-21 15:40:58,363 INFO L226 Difference]: Without dead ends: 38049 [2022-07-21 15:40:58,381 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2022-07-21 15:40:58,381 INFO L413 NwaCegarLoop]: 3131 mSDtfsCounter, 6654 mSDsluCounter, 838 mSDsCounter, 0 mSdLazyCounter, 4385 mSolverCounterSat, 3583 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6761 SdHoareTripleChecker+Valid, 3969 SdHoareTripleChecker+Invalid, 7968 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3583 IncrementalHoareTripleChecker+Valid, 4385 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2022-07-21 15:40:58,382 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6761 Valid, 3969 Invalid, 7968 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3583 Valid, 4385 Invalid, 0 Unknown, 0 Unchecked, 6.1s Time] [2022-07-21 15:40:58,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38049 states. [2022-07-21 15:40:59,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38049 to 36617. [2022-07-21 15:41:00,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36617 states, 25012 states have (on average 1.2714696945466175) internal successors, (31802), 26047 states have internal predecessors, (31802), 8784 states have call successors, (8784), 2619 states have call predecessors, (8784), 2790 states have return successors, (11172), 8492 states have call predecessors, (11172), 8782 states have call successors, (11172) [2022-07-21 15:41:00,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36617 states to 36617 states and 51758 transitions. [2022-07-21 15:41:00,170 INFO L78 Accepts]: Start accepts. Automaton has 36617 states and 51758 transitions. Word has length 126 [2022-07-21 15:41:00,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 15:41:00,170 INFO L495 AbstractCegarLoop]: Abstraction has 36617 states and 51758 transitions. [2022-07-21 15:41:00,170 INFO L496 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) [2022-07-21 15:41:00,171 INFO L276 IsEmpty]: Start isEmpty. Operand 36617 states and 51758 transitions. [2022-07-21 15:41:00,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2022-07-21 15:41:00,174 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 15:41:00,174 INFO L195 NwaCegarLoop]: 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] [2022-07-21 15:41:00,174 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-07-21 15:41:00,175 INFO L420 AbstractCegarLoop]: === Iteration 23 === 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)] === [2022-07-21 15:41:00,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 15:41:00,175 INFO L85 PathProgramCache]: Analyzing trace with hash -1450549279, now seen corresponding path program 1 times [2022-07-21 15:41:00,176 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 15:41:00,176 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [672402566] [2022-07-21 15:41:00,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 15:41:00,177 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 15:41:00,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:41:00,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 15:41:00,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:41:00,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-21 15:41:00,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:41:00,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 15:41:00,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:41:00,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-21 15:41:00,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:41:00,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 15:41:00,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:41:00,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-21 15:41:00,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:41:00,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-07-21 15:41:00,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:41:00,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-07-21 15:41:00,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:41:00,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-07-21 15:41:00,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:41:00,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-07-21 15:41:00,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:41:00,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-21 15:41:00,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:41:00,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-07-21 15:41:00,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:41:00,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-21 15:41:00,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:41:00,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-07-21 15:41:00,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:41:00,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-21 15:41:00,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:41:00,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-21 15:41:00,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:41:00,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-21 15:41:00,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:41:00,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-07-21 15:41:00,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:41:00,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-07-21 15:41:00,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:41:00,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-07-21 15:41:00,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:41:00,408 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-07-21 15:41:00,408 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 15:41:00,408 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [672402566] [2022-07-21 15:41:00,408 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [672402566] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 15:41:00,408 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 15:41:00,408 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-21 15:41:00,409 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1342253389] [2022-07-21 15:41:00,409 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 15:41:00,410 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-21 15:41:00,410 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 15:41:00,410 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-21 15:41:00,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-21 15:41:00,411 INFO L87 Difference]: Start difference. First operand 36617 states and 51758 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) [2022-07-21 15:41:15,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 15:41:15,168 INFO L93 Difference]: Finished difference Result 55423 states and 79463 transitions. [2022-07-21 15:41:15,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-07-21 15:41:15,169 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 [2022-07-21 15:41:15,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 15:41:15,379 INFO L225 Difference]: With dead ends: 55423 [2022-07-21 15:41:15,380 INFO L226 Difference]: Without dead ends: 55421 [2022-07-21 15:41:15,417 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=72, Invalid=138, Unknown=0, NotChecked=0, Total=210 [2022-07-21 15:41:15,417 INFO L413 NwaCegarLoop]: 3271 mSDtfsCounter, 8895 mSDsluCounter, 1509 mSDsCounter, 0 mSdLazyCounter, 12750 mSolverCounterSat, 5000 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9042 SdHoareTripleChecker+Valid, 4780 SdHoareTripleChecker+Invalid, 17750 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 5000 IncrementalHoareTripleChecker+Valid, 12750 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.2s IncrementalHoareTripleChecker+Time [2022-07-21 15:41:15,417 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9042 Valid, 4780 Invalid, 17750 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [5000 Valid, 12750 Invalid, 0 Unknown, 0 Unchecked, 12.2s Time] [2022-07-21 15:41:15,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55421 states. [2022-07-21 15:41:18,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55421 to 53774. [2022-07-21 15:41:18,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53774 states, 36590 states have (on average 1.266138289150041) internal successors, (46328), 38071 states have internal predecessors, (46328), 12977 states have call successors, (12977), 3949 states have call predecessors, (12977), 4176 states have return successors, (17644), 12537 states have call predecessors, (17644), 12975 states have call successors, (17644) [2022-07-21 15:41:18,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53774 states to 53774 states and 76949 transitions. [2022-07-21 15:41:18,336 INFO L78 Accepts]: Start accepts. Automaton has 53774 states and 76949 transitions. Word has length 133 [2022-07-21 15:41:18,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 15:41:18,337 INFO L495 AbstractCegarLoop]: Abstraction has 53774 states and 76949 transitions. [2022-07-21 15:41:18,337 INFO L496 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) [2022-07-21 15:41:18,337 INFO L276 IsEmpty]: Start isEmpty. Operand 53774 states and 76949 transitions. [2022-07-21 15:41:18,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2022-07-21 15:41:18,338 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 15:41:18,338 INFO L195 NwaCegarLoop]: 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] [2022-07-21 15:41:18,339 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-07-21 15:41:18,339 INFO L420 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)] === [2022-07-21 15:41:18,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 15:41:18,339 INFO L85 PathProgramCache]: Analyzing trace with hash 2144491224, now seen corresponding path program 1 times [2022-07-21 15:41:18,339 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 15:41:18,339 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1782618332] [2022-07-21 15:41:18,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 15:41:18,339 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 15:41:18,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:41:18,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 15:41:18,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:41:18,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-21 15:41:18,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:41:18,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 15:41:18,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:41:18,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-21 15:41:18,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:41:18,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 15:41:18,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:41:18,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-21 15:41:18,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:41:18,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-07-21 15:41:18,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:41:18,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-07-21 15:41:18,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:41:18,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-07-21 15:41:18,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:41:18,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-07-21 15:41:18,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:41:18,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-21 15:41:18,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:41:18,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-07-21 15:41:18,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:41:18,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-21 15:41:18,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:41:18,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-07-21 15:41:18,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:41:18,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-21 15:41:18,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:41:18,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-21 15:41:18,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:41:18,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-21 15:41:18,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:41:18,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-07-21 15:41:18,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:41:18,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-07-21 15:41:18,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:41:18,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-07-21 15:41:18,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:41:18,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2022-07-21 15:41:18,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:41:18,500 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-07-21 15:41:18,501 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 15:41:18,501 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1782618332] [2022-07-21 15:41:18,501 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1782618332] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 15:41:18,501 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 15:41:18,501 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-21 15:41:18,501 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [631406959] [2022-07-21 15:41:18,501 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 15:41:18,502 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-21 15:41:18,502 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 15:41:18,503 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-21 15:41:18,503 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-21 15:41:18,503 INFO L87 Difference]: Start difference. First operand 53774 states and 76949 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) [2022-07-21 15:41:36,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 15:41:36,514 INFO L93 Difference]: Finished difference Result 79957 states and 116694 transitions. [2022-07-21 15:41:36,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-07-21 15:41:36,514 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 [2022-07-21 15:41:36,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted.