./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c3fed411 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--usb--class--cdc-wdm.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 6fbcf05da5228307460c10a1ab2d8431ff74359811f7e2c9b55e8eaa9db8f14c --- Real Ultimate output --- This is Ultimate 0.2.2-tmp.no-commuhash-c3fed41 [2021-12-18 16:12:07,340 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-18 16:12:07,361 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-18 16:12:07,396 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-18 16:12:07,397 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-18 16:12:07,400 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-18 16:12:07,401 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-18 16:12:07,405 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-18 16:12:07,406 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-18 16:12:07,408 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-18 16:12:07,409 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-18 16:12:07,411 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-18 16:12:07,411 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-18 16:12:07,415 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-18 16:12:07,417 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-18 16:12:07,418 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-18 16:12:07,422 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-18 16:12:07,423 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-18 16:12:07,424 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-18 16:12:07,425 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-18 16:12:07,425 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-18 16:12:07,427 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-18 16:12:07,427 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-18 16:12:07,428 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-18 16:12:07,430 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-18 16:12:07,433 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-18 16:12:07,433 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-18 16:12:07,434 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-18 16:12:07,435 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-18 16:12:07,435 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-18 16:12:07,436 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-18 16:12:07,436 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-18 16:12:07,437 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-18 16:12:07,438 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-18 16:12:07,439 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-18 16:12:07,439 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-18 16:12:07,440 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-18 16:12:07,440 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-18 16:12:07,440 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-18 16:12:07,441 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-18 16:12:07,441 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-18 16:12:07,442 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-18 16:12:07,461 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-18 16:12:07,467 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-18 16:12:07,467 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-18 16:12:07,467 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-18 16:12:07,468 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-18 16:12:07,468 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-18 16:12:07,469 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-18 16:12:07,469 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-18 16:12:07,469 INFO L138 SettingsManager]: * Use SBE=true [2021-12-18 16:12:07,469 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-18 16:12:07,470 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-18 16:12:07,470 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-18 16:12:07,470 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-18 16:12:07,470 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-18 16:12:07,470 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-18 16:12:07,471 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-18 16:12:07,471 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-18 16:12:07,471 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-18 16:12:07,471 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-18 16:12:07,471 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-18 16:12:07,471 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-18 16:12:07,472 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-18 16:12:07,472 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-18 16:12:07,472 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-18 16:12:07,472 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-18 16:12:07,472 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-18 16:12:07,472 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-18 16:12:07,472 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-18 16:12:07,473 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-18 16:12:07,473 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-18 16:12:07,473 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-18 16:12:07,473 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6fbcf05da5228307460c10a1ab2d8431ff74359811f7e2c9b55e8eaa9db8f14c [2021-12-18 16:12:07,637 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-18 16:12:07,650 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-18 16:12:07,652 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-18 16:12:07,653 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-18 16:12:07,653 INFO L275 PluginConnector]: CDTParser initialized [2021-12-18 16:12:07,654 INFO L432 ainManager$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--usb--class--cdc-wdm.ko.cil.i [2021-12-18 16:12:07,690 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0a53e5f2f/7b6010e5e80c4be48817a8757380fb4d/FLAG780147206 [2021-12-18 16:12:08,200 INFO L306 CDTParser]: Found 1 translation units. [2021-12-18 16:12:08,200 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i [2021-12-18 16:12:08,233 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0a53e5f2f/7b6010e5e80c4be48817a8757380fb4d/FLAG780147206 [2021-12-18 16:12:08,429 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0a53e5f2f/7b6010e5e80c4be48817a8757380fb4d [2021-12-18 16:12:08,430 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-18 16:12:08,431 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-18 16:12:08,433 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-18 16:12:08,433 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-18 16:12:08,435 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-18 16:12:08,436 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 04:12:08" (1/1) ... [2021-12-18 16:12:08,437 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3e9b335e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 04:12:08, skipping insertion in model container [2021-12-18 16:12:08,438 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 04:12:08" (1/1) ... [2021-12-18 16:12:08,443 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-18 16:12:08,542 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-18 16:12:10,164 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--usb--class--cdc-wdm.ko.cil.i[307309,307322] [2021-12-18 16:12:10,167 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--usb--class--cdc-wdm.ko.cil.i[307454,307467] [2021-12-18 16:12:10,168 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--usb--class--cdc-wdm.ko.cil.i[307600,307613] [2021-12-18 16:12:10,169 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--usb--class--cdc-wdm.ko.cil.i[307765,307778] [2021-12-18 16:12:10,169 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--usb--class--cdc-wdm.ko.cil.i[307923,307936] [2021-12-18 16:12:10,170 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--usb--class--cdc-wdm.ko.cil.i[308081,308094] [2021-12-18 16:12:10,173 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--usb--class--cdc-wdm.ko.cil.i[308239,308252] [2021-12-18 16:12:10,174 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--usb--class--cdc-wdm.ko.cil.i[308399,308412] [2021-12-18 16:12:10,174 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--usb--class--cdc-wdm.ko.cil.i[308558,308571] [2021-12-18 16:12:10,176 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--usb--class--cdc-wdm.ko.cil.i[308697,308710] [2021-12-18 16:12:10,176 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--usb--class--cdc-wdm.ko.cil.i[308839,308852] [2021-12-18 16:12:10,177 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--usb--class--cdc-wdm.ko.cil.i[308988,309001] [2021-12-18 16:12:10,177 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--usb--class--cdc-wdm.ko.cil.i[309127,309140] [2021-12-18 16:12:10,178 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--usb--class--cdc-wdm.ko.cil.i[309282,309295] [2021-12-18 16:12:10,178 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--usb--class--cdc-wdm.ko.cil.i[309442,309455] [2021-12-18 16:12:10,178 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--usb--class--cdc-wdm.ko.cil.i[309593,309606] [2021-12-18 16:12:10,179 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--usb--class--cdc-wdm.ko.cil.i[309744,309757] [2021-12-18 16:12:10,179 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--usb--class--cdc-wdm.ko.cil.i[309896,309909] [2021-12-18 16:12:10,180 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--usb--class--cdc-wdm.ko.cil.i[310045,310058] [2021-12-18 16:12:10,180 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--usb--class--cdc-wdm.ko.cil.i[310193,310206] [2021-12-18 16:12:10,180 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--usb--class--cdc-wdm.ko.cil.i[310350,310363] [2021-12-18 16:12:10,180 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--usb--class--cdc-wdm.ko.cil.i[310499,310512] [2021-12-18 16:12:10,181 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--usb--class--cdc-wdm.ko.cil.i[310655,310668] [2021-12-18 16:12:10,181 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--usb--class--cdc-wdm.ko.cil.i[310808,310821] [2021-12-18 16:12:10,182 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--usb--class--cdc-wdm.ko.cil.i[310954,310967] [2021-12-18 16:12:10,183 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--usb--class--cdc-wdm.ko.cil.i[311097,311110] [2021-12-18 16:12:10,183 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--usb--class--cdc-wdm.ko.cil.i[311249,311262] [2021-12-18 16:12:10,183 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--usb--class--cdc-wdm.ko.cil.i[311395,311408] [2021-12-18 16:12:10,183 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--usb--class--cdc-wdm.ko.cil.i[311540,311553] [2021-12-18 16:12:10,184 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--usb--class--cdc-wdm.ko.cil.i[311694,311707] [2021-12-18 16:12:10,185 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--usb--class--cdc-wdm.ko.cil.i[311845,311858] [2021-12-18 16:12:10,185 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--usb--class--cdc-wdm.ko.cil.i[312000,312013] [2021-12-18 16:12:10,186 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--usb--class--cdc-wdm.ko.cil.i[312152,312165] [2021-12-18 16:12:10,186 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--usb--class--cdc-wdm.ko.cil.i[312307,312320] [2021-12-18 16:12:10,187 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--usb--class--cdc-wdm.ko.cil.i[312471,312484] [2021-12-18 16:12:10,187 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--usb--class--cdc-wdm.ko.cil.i[312627,312640] [2021-12-18 16:12:10,187 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--usb--class--cdc-wdm.ko.cil.i[312791,312804] [2021-12-18 16:12:10,188 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--usb--class--cdc-wdm.ko.cil.i[312933,312946] [2021-12-18 16:12:10,188 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--usb--class--cdc-wdm.ko.cil.i[313091,313104] [2021-12-18 16:12:10,188 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--usb--class--cdc-wdm.ko.cil.i[313258,313271] [2021-12-18 16:12:10,188 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--usb--class--cdc-wdm.ko.cil.i[313417,313430] [2021-12-18 16:12:10,189 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--usb--class--cdc-wdm.ko.cil.i[313576,313589] [2021-12-18 16:12:10,189 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--usb--class--cdc-wdm.ko.cil.i[313725,313738] [2021-12-18 16:12:10,189 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--usb--class--cdc-wdm.ko.cil.i[313872,313885] [2021-12-18 16:12:10,189 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--usb--class--cdc-wdm.ko.cil.i[314011,314024] [2021-12-18 16:12:10,190 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--usb--class--cdc-wdm.ko.cil.i[314174,314187] [2021-12-18 16:12:10,190 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--usb--class--cdc-wdm.ko.cil.i[314340,314353] [2021-12-18 16:12:10,191 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--usb--class--cdc-wdm.ko.cil.i[314504,314517] [2021-12-18 16:12:10,191 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--usb--class--cdc-wdm.ko.cil.i[314669,314682] [2021-12-18 16:12:10,192 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--usb--class--cdc-wdm.ko.cil.i[314834,314847] [2021-12-18 16:12:10,192 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--usb--class--cdc-wdm.ko.cil.i[315000,315013] [2021-12-18 16:12:10,192 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--usb--class--cdc-wdm.ko.cil.i[315165,315178] [2021-12-18 16:12:10,193 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--usb--class--cdc-wdm.ko.cil.i[315332,315345] [2021-12-18 16:12:10,193 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--usb--class--cdc-wdm.ko.cil.i[315492,315505] [2021-12-18 16:12:10,193 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--usb--class--cdc-wdm.ko.cil.i[315654,315667] [2021-12-18 16:12:10,194 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--usb--class--cdc-wdm.ko.cil.i[315813,315826] [2021-12-18 16:12:10,194 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--usb--class--cdc-wdm.ko.cil.i[315959,315972] [2021-12-18 16:12:10,194 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--usb--class--cdc-wdm.ko.cil.i[316102,316115] [2021-12-18 16:12:10,195 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--usb--class--cdc-wdm.ko.cil.i[316246,316259] [2021-12-18 16:12:10,195 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--usb--class--cdc-wdm.ko.cil.i[316389,316402] [2021-12-18 16:12:10,195 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--usb--class--cdc-wdm.ko.cil.i[316533,316546] [2021-12-18 16:12:10,196 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--usb--class--cdc-wdm.ko.cil.i[316674,316687] [2021-12-18 16:12:10,196 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--usb--class--cdc-wdm.ko.cil.i[316812,316825] [2021-12-18 16:12:10,196 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--usb--class--cdc-wdm.ko.cil.i[316970,316983] [2021-12-18 16:12:10,197 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--usb--class--cdc-wdm.ko.cil.i[317129,317142] [2021-12-18 16:12:10,197 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--usb--class--cdc-wdm.ko.cil.i[317285,317298] [2021-12-18 16:12:10,197 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--usb--class--cdc-wdm.ko.cil.i[317434,317447] [2021-12-18 16:12:10,197 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--usb--class--cdc-wdm.ko.cil.i[317586,317599] [2021-12-18 16:12:10,198 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--usb--class--cdc-wdm.ko.cil.i[317737,317750] [2021-12-18 16:12:10,198 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--usb--class--cdc-wdm.ko.cil.i[317886,317899] [2021-12-18 16:12:10,198 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--usb--class--cdc-wdm.ko.cil.i[318038,318051] [2021-12-18 16:12:10,199 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--usb--class--cdc-wdm.ko.cil.i[318186,318199] [2021-12-18 16:12:10,199 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--usb--class--cdc-wdm.ko.cil.i[318339,318352] [2021-12-18 16:12:10,200 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--usb--class--cdc-wdm.ko.cil.i[318490,318503] [2021-12-18 16:12:10,200 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--usb--class--cdc-wdm.ko.cil.i[318640,318653] [2021-12-18 16:12:10,200 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--usb--class--cdc-wdm.ko.cil.i[318787,318800] [2021-12-18 16:12:10,200 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--usb--class--cdc-wdm.ko.cil.i[318938,318951] [2021-12-18 16:12:10,201 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--usb--class--cdc-wdm.ko.cil.i[319089,319102] [2021-12-18 16:12:10,201 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--usb--class--cdc-wdm.ko.cil.i[319237,319250] [2021-12-18 16:12:10,201 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--usb--class--cdc-wdm.ko.cil.i[319403,319416] [2021-12-18 16:12:10,202 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--usb--class--cdc-wdm.ko.cil.i[319572,319585] [2021-12-18 16:12:10,202 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--usb--class--cdc-wdm.ko.cil.i[319739,319752] [2021-12-18 16:12:10,202 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--usb--class--cdc-wdm.ko.cil.i[319907,319920] [2021-12-18 16:12:10,202 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--usb--class--cdc-wdm.ko.cil.i[320057,320070] [2021-12-18 16:12:10,203 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--usb--class--cdc-wdm.ko.cil.i[320204,320217] [2021-12-18 16:12:10,203 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--usb--class--cdc-wdm.ko.cil.i[320365,320378] [2021-12-18 16:12:10,204 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--usb--class--cdc-wdm.ko.cil.i[320535,320548] [2021-12-18 16:12:10,204 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--usb--class--cdc-wdm.ko.cil.i[320697,320710] [2021-12-18 16:12:10,211 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-18 16:12:10,237 INFO L203 MainTranslator]: Completed pre-run [2021-12-18 16:12:10,412 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--usb--class--cdc-wdm.ko.cil.i[307309,307322] [2021-12-18 16:12:10,413 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--usb--class--cdc-wdm.ko.cil.i[307454,307467] [2021-12-18 16:12:10,413 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--usb--class--cdc-wdm.ko.cil.i[307600,307613] [2021-12-18 16:12:10,413 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--usb--class--cdc-wdm.ko.cil.i[307765,307778] [2021-12-18 16:12:10,414 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--usb--class--cdc-wdm.ko.cil.i[307923,307936] [2021-12-18 16:12:10,417 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--usb--class--cdc-wdm.ko.cil.i[308081,308094] [2021-12-18 16:12:10,417 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--usb--class--cdc-wdm.ko.cil.i[308239,308252] [2021-12-18 16:12:10,418 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--usb--class--cdc-wdm.ko.cil.i[308399,308412] [2021-12-18 16:12:10,418 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--usb--class--cdc-wdm.ko.cil.i[308558,308571] [2021-12-18 16:12:10,419 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--usb--class--cdc-wdm.ko.cil.i[308697,308710] [2021-12-18 16:12:10,419 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--usb--class--cdc-wdm.ko.cil.i[308839,308852] [2021-12-18 16:12:10,420 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--usb--class--cdc-wdm.ko.cil.i[308988,309001] [2021-12-18 16:12:10,420 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--usb--class--cdc-wdm.ko.cil.i[309127,309140] [2021-12-18 16:12:10,420 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--usb--class--cdc-wdm.ko.cil.i[309282,309295] [2021-12-18 16:12:10,421 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--usb--class--cdc-wdm.ko.cil.i[309442,309455] [2021-12-18 16:12:10,421 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--usb--class--cdc-wdm.ko.cil.i[309593,309606] [2021-12-18 16:12:10,421 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--usb--class--cdc-wdm.ko.cil.i[309744,309757] [2021-12-18 16:12:10,421 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--usb--class--cdc-wdm.ko.cil.i[309896,309909] [2021-12-18 16:12:10,422 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--usb--class--cdc-wdm.ko.cil.i[310045,310058] [2021-12-18 16:12:10,422 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--usb--class--cdc-wdm.ko.cil.i[310193,310206] [2021-12-18 16:12:10,422 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--usb--class--cdc-wdm.ko.cil.i[310350,310363] [2021-12-18 16:12:10,422 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--usb--class--cdc-wdm.ko.cil.i[310499,310512] [2021-12-18 16:12:10,423 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--usb--class--cdc-wdm.ko.cil.i[310655,310668] [2021-12-18 16:12:10,423 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--usb--class--cdc-wdm.ko.cil.i[310808,310821] [2021-12-18 16:12:10,424 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--usb--class--cdc-wdm.ko.cil.i[310954,310967] [2021-12-18 16:12:10,425 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--usb--class--cdc-wdm.ko.cil.i[311097,311110] [2021-12-18 16:12:10,425 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--usb--class--cdc-wdm.ko.cil.i[311249,311262] [2021-12-18 16:12:10,425 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--usb--class--cdc-wdm.ko.cil.i[311395,311408] [2021-12-18 16:12:10,425 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--usb--class--cdc-wdm.ko.cil.i[311540,311553] [2021-12-18 16:12:10,426 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--usb--class--cdc-wdm.ko.cil.i[311694,311707] [2021-12-18 16:12:10,426 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--usb--class--cdc-wdm.ko.cil.i[311845,311858] [2021-12-18 16:12:10,426 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--usb--class--cdc-wdm.ko.cil.i[312000,312013] [2021-12-18 16:12:10,426 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--usb--class--cdc-wdm.ko.cil.i[312152,312165] [2021-12-18 16:12:10,427 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--usb--class--cdc-wdm.ko.cil.i[312307,312320] [2021-12-18 16:12:10,427 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--usb--class--cdc-wdm.ko.cil.i[312471,312484] [2021-12-18 16:12:10,427 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--usb--class--cdc-wdm.ko.cil.i[312627,312640] [2021-12-18 16:12:10,428 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--usb--class--cdc-wdm.ko.cil.i[312791,312804] [2021-12-18 16:12:10,428 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--usb--class--cdc-wdm.ko.cil.i[312933,312946] [2021-12-18 16:12:10,428 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--usb--class--cdc-wdm.ko.cil.i[313091,313104] [2021-12-18 16:12:10,428 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--usb--class--cdc-wdm.ko.cil.i[313258,313271] [2021-12-18 16:12:10,430 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--usb--class--cdc-wdm.ko.cil.i[313417,313430] [2021-12-18 16:12:10,430 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--usb--class--cdc-wdm.ko.cil.i[313576,313589] [2021-12-18 16:12:10,430 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--usb--class--cdc-wdm.ko.cil.i[313725,313738] [2021-12-18 16:12:10,430 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--usb--class--cdc-wdm.ko.cil.i[313872,313885] [2021-12-18 16:12:10,431 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--usb--class--cdc-wdm.ko.cil.i[314011,314024] [2021-12-18 16:12:10,431 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--usb--class--cdc-wdm.ko.cil.i[314174,314187] [2021-12-18 16:12:10,431 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--usb--class--cdc-wdm.ko.cil.i[314340,314353] [2021-12-18 16:12:10,434 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--usb--class--cdc-wdm.ko.cil.i[314504,314517] [2021-12-18 16:12:10,435 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--usb--class--cdc-wdm.ko.cil.i[314669,314682] [2021-12-18 16:12:10,435 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--usb--class--cdc-wdm.ko.cil.i[314834,314847] [2021-12-18 16:12:10,436 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--usb--class--cdc-wdm.ko.cil.i[315000,315013] [2021-12-18 16:12:10,436 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--usb--class--cdc-wdm.ko.cil.i[315165,315178] [2021-12-18 16:12:10,437 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--usb--class--cdc-wdm.ko.cil.i[315332,315345] [2021-12-18 16:12:10,437 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--usb--class--cdc-wdm.ko.cil.i[315492,315505] [2021-12-18 16:12:10,438 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--usb--class--cdc-wdm.ko.cil.i[315654,315667] [2021-12-18 16:12:10,438 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--usb--class--cdc-wdm.ko.cil.i[315813,315826] [2021-12-18 16:12:10,438 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--usb--class--cdc-wdm.ko.cil.i[315959,315972] [2021-12-18 16:12:10,439 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--usb--class--cdc-wdm.ko.cil.i[316102,316115] [2021-12-18 16:12:10,439 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--usb--class--cdc-wdm.ko.cil.i[316246,316259] [2021-12-18 16:12:10,439 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--usb--class--cdc-wdm.ko.cil.i[316389,316402] [2021-12-18 16:12:10,467 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--usb--class--cdc-wdm.ko.cil.i[316533,316546] [2021-12-18 16:12:10,468 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--usb--class--cdc-wdm.ko.cil.i[316674,316687] [2021-12-18 16:12:10,468 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--usb--class--cdc-wdm.ko.cil.i[316812,316825] [2021-12-18 16:12:10,468 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--usb--class--cdc-wdm.ko.cil.i[316970,316983] [2021-12-18 16:12:10,468 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--usb--class--cdc-wdm.ko.cil.i[317129,317142] [2021-12-18 16:12:10,468 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--usb--class--cdc-wdm.ko.cil.i[317285,317298] [2021-12-18 16:12:10,469 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--usb--class--cdc-wdm.ko.cil.i[317434,317447] [2021-12-18 16:12:10,469 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--usb--class--cdc-wdm.ko.cil.i[317586,317599] [2021-12-18 16:12:10,469 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--usb--class--cdc-wdm.ko.cil.i[317737,317750] [2021-12-18 16:12:10,469 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--usb--class--cdc-wdm.ko.cil.i[317886,317899] [2021-12-18 16:12:10,469 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--usb--class--cdc-wdm.ko.cil.i[318038,318051] [2021-12-18 16:12:10,470 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--usb--class--cdc-wdm.ko.cil.i[318186,318199] [2021-12-18 16:12:10,470 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--usb--class--cdc-wdm.ko.cil.i[318339,318352] [2021-12-18 16:12:10,470 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--usb--class--cdc-wdm.ko.cil.i[318490,318503] [2021-12-18 16:12:10,470 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--usb--class--cdc-wdm.ko.cil.i[318640,318653] [2021-12-18 16:12:10,470 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--usb--class--cdc-wdm.ko.cil.i[318787,318800] [2021-12-18 16:12:10,471 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--usb--class--cdc-wdm.ko.cil.i[318938,318951] [2021-12-18 16:12:10,471 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--usb--class--cdc-wdm.ko.cil.i[319089,319102] [2021-12-18 16:12:10,471 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--usb--class--cdc-wdm.ko.cil.i[319237,319250] [2021-12-18 16:12:10,471 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--usb--class--cdc-wdm.ko.cil.i[319403,319416] [2021-12-18 16:12:10,471 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--usb--class--cdc-wdm.ko.cil.i[319572,319585] [2021-12-18 16:12:10,472 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--usb--class--cdc-wdm.ko.cil.i[319739,319752] [2021-12-18 16:12:10,472 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--usb--class--cdc-wdm.ko.cil.i[319907,319920] [2021-12-18 16:12:10,472 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--usb--class--cdc-wdm.ko.cil.i[320057,320070] [2021-12-18 16:12:10,472 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--usb--class--cdc-wdm.ko.cil.i[320204,320217] [2021-12-18 16:12:10,472 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--usb--class--cdc-wdm.ko.cil.i[320365,320378] [2021-12-18 16:12:10,473 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--usb--class--cdc-wdm.ko.cil.i[320535,320548] [2021-12-18 16:12:10,473 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--usb--class--cdc-wdm.ko.cil.i[320697,320710] [2021-12-18 16:12:10,474 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-18 16:12:10,583 INFO L208 MainTranslator]: Completed translation [2021-12-18 16:12:10,584 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 04:12:10 WrapperNode [2021-12-18 16:12:10,584 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-18 16:12:10,585 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-18 16:12:10,585 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-18 16:12:10,585 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-18 16:12:10,590 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 04:12:10" (1/1) ... [2021-12-18 16:12:10,657 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 04:12:10" (1/1) ... [2021-12-18 16:12:10,744 INFO L137 Inliner]: procedures = 592, calls = 1771, calls flagged for inlining = 263, calls inlined = 169, statements flattened = 3167 [2021-12-18 16:12:10,745 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-18 16:12:10,745 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-18 16:12:10,745 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-18 16:12:10,746 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-18 16:12:10,753 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 04:12:10" (1/1) ... [2021-12-18 16:12:10,754 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 04:12:10" (1/1) ... [2021-12-18 16:12:10,778 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 04:12:10" (1/1) ... [2021-12-18 16:12:10,779 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 04:12:10" (1/1) ... [2021-12-18 16:12:10,826 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 04:12:10" (1/1) ... [2021-12-18 16:12:10,834 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 04:12:10" (1/1) ... [2021-12-18 16:12:10,845 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 04:12:10" (1/1) ... [2021-12-18 16:12:10,865 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-18 16:12:10,866 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-18 16:12:10,866 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-18 16:12:10,866 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-18 16:12:10,870 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 04:12:10" (1/1) ... [2021-12-18 16:12:10,877 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-18 16:12:10,886 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-18 16:12:10,900 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) [2021-12-18 16:12:10,929 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 [2021-12-18 16:12:10,949 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_coherent_check_final_state [2021-12-18 16:12:10,950 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_coherent_check_final_state [2021-12-18 16:12:10,950 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-12-18 16:12:10,950 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-12-18 16:12:10,950 INFO L130 BoogieDeclarations]: Found specification of procedure recover_from_urb_loss [2021-12-18 16:12:10,951 INFO L138 BoogieDeclarations]: Found implementation of procedure recover_from_urb_loss [2021-12-18 16:12:10,951 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_control_urb [2021-12-18 16:12:10,951 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_control_urb [2021-12-18 16:12:10,951 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-18 16:12:10,951 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-18 16:12:10,951 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_mmc_sdio_func_check_final_state [2021-12-18 16:12:10,951 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_mmc_sdio_func_check_final_state [2021-12-18 16:12:10,952 INFO L130 BoogieDeclarations]: Found specification of procedure __might_sleep [2021-12-18 16:12:10,952 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_sleep [2021-12-18 16:12:10,952 INFO L130 BoogieDeclarations]: Found specification of procedure usb_autopm_get_interface [2021-12-18 16:12:10,952 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_autopm_get_interface [2021-12-18 16:12:10,952 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-12-18 16:12:10,952 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-12-18 16:12:10,952 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2021-12-18 16:12:10,952 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2021-12-18 16:12:10,952 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_arch_io_check_final_state [2021-12-18 16:12:10,952 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_arch_io_check_final_state [2021-12-18 16:12:10,953 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_module_check_final_state [2021-12-18 16:12:10,953 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_module_check_final_state [2021-12-18 16:12:10,953 INFO L130 BoogieDeclarations]: Found specification of procedure wdm_ioctl [2021-12-18 16:12:10,953 INFO L138 BoogieDeclarations]: Found implementation of procedure wdm_ioctl [2021-12-18 16:12:10,953 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-12-18 16:12:10,953 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-12-18 16:12:10,953 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_spinlock_spin_unlock_iuspin_of_wdm_device [2021-12-18 16:12:10,953 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_spinlock_spin_unlock_iuspin_of_wdm_device [2021-12-18 16:12:10,953 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-12-18 16:12:10,954 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-12-18 16:12:10,954 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_queue_check_final_state [2021-12-18 16:12:10,954 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_queue_check_final_state [2021-12-18 16:12:10,954 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-18 16:12:10,954 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_work_sync [2021-12-18 16:12:10,954 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_work_sync [2021-12-18 16:12:10,954 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2021-12-18 16:12:10,954 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2021-12-18 16:12:10,954 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2021-12-18 16:12:10,955 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2021-12-18 16:12:10,955 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_request_check_final_state [2021-12-18 16:12:10,955 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_request_check_final_state [2021-12-18 16:12:10,955 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2021-12-18 16:12:10,955 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2021-12-18 16:12:10,955 INFO L130 BoogieDeclarations]: Found specification of procedure schedule [2021-12-18 16:12:10,955 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule [2021-12-18 16:12:10,955 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2021-12-18 16:12:10,955 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2021-12-18 16:12:10,956 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~int [2021-12-18 16:12:10,956 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~int [2021-12-18 16:12:10,956 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-12-18 16:12:10,956 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_in_interrupt_context [2021-12-18 16:12:10,956 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_in_interrupt_context [2021-12-18 16:12:10,956 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-12-18 16:12:10,957 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-12-18 16:12:10,957 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irq_111 [2021-12-18 16:12:10,957 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irq_111 [2021-12-18 16:12:10,957 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_bh_check_final_state [2021-12-18 16:12:10,957 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_bh_check_final_state [2021-12-18 16:12:10,957 INFO L130 BoogieDeclarations]: Found specification of procedure usb_autopm_put_interface [2021-12-18 16:12:10,957 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_autopm_put_interface [2021-12-18 16:12:10,957 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-18 16:12:10,957 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_genhd_check_final_state [2021-12-18 16:12:10,958 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_genhd_check_final_state [2021-12-18 16:12:10,958 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_after_alloc [2021-12-18 16:12:10,958 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_after_alloc [2021-12-18 16:12:10,958 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_register_reset_error_counter [2021-12-18 16:12:10,958 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_register_reset_error_counter [2021-12-18 16:12:10,958 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2021-12-18 16:12:10,958 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2021-12-18 16:12:10,958 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_lock_wlock_of_wdm_device [2021-12-18 16:12:10,959 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_lock_wlock_of_wdm_device [2021-12-18 16:12:10,961 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2021-12-18 16:12:10,961 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2021-12-18 16:12:10,961 INFO L130 BoogieDeclarations]: Found specification of procedure kill_urbs [2021-12-18 16:12:10,961 INFO L138 BoogieDeclarations]: Found implementation of procedure kill_urbs [2021-12-18 16:12:10,961 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_to_wait_event [2021-12-18 16:12:10,961 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_to_wait_event [2021-12-18 16:12:10,962 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_lib_idr_check_final_state [2021-12-18 16:12:10,962 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_lib_idr_check_final_state [2021-12-18 16:12:10,962 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2021-12-18 16:12:10,966 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2021-12-18 16:12:10,966 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_srcu_check_final_state [2021-12-18 16:12:10,966 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_srcu_check_final_state [2021-12-18 16:12:10,966 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-18 16:12:10,966 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_spinlock_spin_lock_iuspin_of_wdm_device [2021-12-18 16:12:10,966 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_spinlock_spin_lock_iuspin_of_wdm_device [2021-12-18 16:12:10,966 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-18 16:12:10,967 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-12-18 16:12:10,967 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-12-18 16:12:10,967 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-18 16:12:10,967 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2021-12-18 16:12:10,967 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2021-12-18 16:12:10,967 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2021-12-18 16:12:10,967 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2021-12-18 16:12:10,967 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_alloc_irq_check_alloc_flags [2021-12-18 16:12:10,967 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_alloc_irq_check_alloc_flags [2021-12-18 16:12:10,967 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_register_reset_error_counter [2021-12-18 16:12:10,968 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_register_reset_error_counter [2021-12-18 16:12:10,968 INFO L130 BoogieDeclarations]: Found specification of procedure wdm_find_device [2021-12-18 16:12:10,968 INFO L138 BoogieDeclarations]: Found implementation of procedure wdm_find_device [2021-12-18 16:12:10,968 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2021-12-18 16:12:10,968 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2021-12-18 16:12:10,968 INFO L130 BoogieDeclarations]: Found specification of procedure interface_to_usbdev [2021-12-18 16:12:10,968 INFO L138 BoogieDeclarations]: Found implementation of procedure interface_to_usbdev [2021-12-18 16:12:10,969 INFO L130 BoogieDeclarations]: Found specification of procedure finish_wait [2021-12-18 16:12:10,969 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_wait [2021-12-18 16:12:10,969 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-18 16:12:10,969 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-18 16:12:10,969 INFO L130 BoogieDeclarations]: Found specification of procedure usb_translate_errors [2021-12-18 16:12:10,969 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_translate_errors [2021-12-18 16:12:10,969 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-12-18 16:12:10,969 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-12-18 16:12:10,969 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-12-18 16:12:10,969 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-12-18 16:12:10,970 INFO L130 BoogieDeclarations]: Found specification of procedure wdm_create [2021-12-18 16:12:10,970 INFO L138 BoogieDeclarations]: Found implementation of procedure wdm_create [2021-12-18 16:12:10,970 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_128 [2021-12-18 16:12:10,970 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_128 [2021-12-18 16:12:10,970 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_sock_check_final_state [2021-12-18 16:12:10,970 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_sock_check_final_state [2021-12-18 16:12:10,970 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_urb_usb_free_urb [2021-12-18 16:12:10,971 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_urb_usb_free_urb [2021-12-18 16:12:10,971 INFO L130 BoogieDeclarations]: Found specification of procedure clear_wdm_read_flag [2021-12-18 16:12:10,971 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_wdm_read_flag [2021-12-18 16:12:10,971 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_gadget_check_final_state [2021-12-18 16:12:10,971 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_gadget_check_final_state [2021-12-18 16:12:10,971 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-18 16:12:10,971 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-12-18 16:12:10,971 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-12-18 16:12:10,971 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_fs_sysfs_check_final_state [2021-12-18 16:12:10,972 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_fs_sysfs_check_final_state [2021-12-18 16:12:10,972 INFO L130 BoogieDeclarations]: Found specification of procedure wdm_disconnect [2021-12-18 16:12:10,972 INFO L138 BoogieDeclarations]: Found implementation of procedure wdm_disconnect [2021-12-18 16:12:10,972 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-18 16:12:10,972 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-18 16:12:10,972 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_lock_wdm_mutex [2021-12-18 16:12:10,972 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_lock_wdm_mutex [2021-12-18 16:12:10,972 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2021-12-18 16:12:10,972 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2021-12-18 16:12:10,972 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2021-12-18 16:12:10,973 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2021-12-18 16:12:10,973 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_rtnetlink_check_final_state [2021-12-18 16:12:10,973 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_rtnetlink_check_final_state [2021-12-18 16:12:10,973 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_unlock_rlock_of_wdm_device [2021-12-18 16:12:10,973 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_unlock_rlock_of_wdm_device [2021-12-18 16:12:10,973 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-12-18 16:12:10,973 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-12-18 16:12:10,973 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-12-18 16:12:10,973 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-12-18 16:12:10,973 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_alloc_usb_lock_check_alloc_flags [2021-12-18 16:12:10,974 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_alloc_usb_lock_check_alloc_flags [2021-12-18 16:12:10,974 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_urb_usb_alloc_urb [2021-12-18 16:12:10,974 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_urb_usb_alloc_urb [2021-12-18 16:12:10,974 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_check_final_state [2021-12-18 16:12:10,974 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_check_final_state [2021-12-18 16:12:10,974 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2021-12-18 16:12:10,974 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2021-12-18 16:12:10,974 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_urb_check_final_state [2021-12-18 16:12:10,974 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_urb_check_final_state [2021-12-18 16:12:10,974 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_linux_kernel_locking_spinlock_spin_lock [2021-12-18 16:12:10,975 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_linux_kernel_locking_spinlock_spin_lock [2021-12-18 16:12:10,975 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2021-12-18 16:12:10,975 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2021-12-18 16:12:10,975 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-12-18 16:12:10,975 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-12-18 16:12:10,975 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_unlock_wdm_mutex [2021-12-18 16:12:10,975 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_unlock_wdm_mutex [2021-12-18 16:12:10,975 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_rwlock_check_final_state [2021-12-18 16:12:10,975 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_rwlock_check_final_state [2021-12-18 16:12:10,975 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-12-18 16:12:10,976 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-12-18 16:12:10,976 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2021-12-18 16:12:10,976 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2021-12-18 16:12:10,976 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-18 16:12:10,976 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_fs_char_dev_check_final_state [2021-12-18 16:12:10,976 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_fs_char_dev_check_final_state [2021-12-18 16:12:10,976 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-18 16:12:10,976 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-18 16:12:10,976 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_95 [2021-12-18 16:12:10,976 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_95 [2021-12-18 16:12:10,976 INFO L130 BoogieDeclarations]: Found specification of procedure wdm_resume [2021-12-18 16:12:10,977 INFO L138 BoogieDeclarations]: Found implementation of procedure wdm_resume [2021-12-18 16:12:10,977 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_drivers_base_class_check_final_state [2021-12-18 16:12:10,977 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_drivers_base_class_check_final_state [2021-12-18 16:12:10,977 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_96 [2021-12-18 16:12:10,977 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_96 [2021-12-18 16:12:10,977 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_lock_rlock_of_wdm_device [2021-12-18 16:12:10,977 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_lock_rlock_of_wdm_device [2021-12-18 16:12:10,977 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2021-12-18 16:12:10,977 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2021-12-18 16:12:10,977 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-12-18 16:12:10,978 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-12-18 16:12:10,978 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_sched_check_final_state [2021-12-18 16:12:10,978 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_sched_check_final_state [2021-12-18 16:12:10,978 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2021-12-18 16:12:10,978 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2021-12-18 16:12:10,978 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-18 16:12:10,979 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_unlock_wlock_of_wdm_device [2021-12-18 16:12:10,980 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_unlock_wlock_of_wdm_device [2021-12-18 16:12:10,980 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_irq_110 [2021-12-18 16:12:10,980 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_irq_110 [2021-12-18 16:12:11,445 INFO L236 CfgBuilder]: Building ICFG [2021-12-18 16:12:11,447 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-18 16:12:11,521 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-12-18 16:12:13,807 INFO L277 CfgBuilder]: Performing block encoding [2021-12-18 16:12:13,823 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-18 16:12:13,823 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-18 16:12:13,827 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 04:12:13 BoogieIcfgContainer [2021-12-18 16:12:13,827 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-18 16:12:13,828 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-18 16:12:13,828 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-18 16:12:13,831 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-18 16:12:13,831 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.12 04:12:08" (1/3) ... [2021-12-18 16:12:13,832 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3328be32 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 04:12:13, skipping insertion in model container [2021-12-18 16:12:13,832 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 04:12:10" (2/3) ... [2021-12-18 16:12:13,832 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3328be32 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 04:12:13, skipping insertion in model container [2021-12-18 16:12:13,832 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 04:12:13" (3/3) ... [2021-12-18 16:12:13,833 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.0-rc1---drivers--usb--class--cdc-wdm.ko.cil.i [2021-12-18 16:12:13,838 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-18 16:12:13,838 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 30 error locations. [2021-12-18 16:12:13,880 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-18 16:12:13,884 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-18 16:12:13,885 INFO L340 AbstractCegarLoop]: Starting to check reachability of 30 error locations. [2021-12-18 16:12:13,911 INFO L276 IsEmpty]: Start isEmpty. Operand has 1343 states, 834 states have (on average 1.2470023980815348) internal successors, (1040), 886 states have internal predecessors, (1040), 384 states have call successors, (384), 95 states have call predecessors, (384), 94 states have return successors, (379), 377 states have call predecessors, (379), 379 states have call successors, (379) [2021-12-18 16:12:13,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2021-12-18 16:12:13,917 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 16:12:13,917 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 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] [2021-12-18 16:12:13,918 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_linux_arch_io_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2021-12-18 16:12:13,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 16:12:13,921 INFO L85 PathProgramCache]: Analyzing trace with hash 821102898, now seen corresponding path program 1 times [2021-12-18 16:12:13,927 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 16:12:13,927 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1547430949] [2021-12-18 16:12:13,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 16:12:13,928 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 16:12:14,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:14,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 16:12:14,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:14,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-18 16:12:14,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:14,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-12-18 16:12:14,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:14,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-18 16:12:14,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:14,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-18 16:12:14,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:14,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-18 16:12:14,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:14,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-12-18 16:12:14,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:14,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:12:14,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:14,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-12-18 16:12:14,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:14,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-18 16:12:14,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:14,483 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-12-18 16:12:14,484 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 16:12:14,484 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1547430949] [2021-12-18 16:12:14,484 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1547430949] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 16:12:14,485 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 16:12:14,485 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-18 16:12:14,486 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1636379645] [2021-12-18 16:12:14,488 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 16:12:14,492 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 16:12:14,492 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 16:12:14,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 16:12:14,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-18 16:12:14,529 INFO L87 Difference]: Start difference. First operand has 1343 states, 834 states have (on average 1.2470023980815348) internal successors, (1040), 886 states have internal predecessors, (1040), 384 states have call successors, (384), 95 states have call predecessors, (384), 94 states have return successors, (379), 377 states have call predecessors, (379), 379 states have call successors, (379) Second operand has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (11), 4 states have call predecessors, (11), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2021-12-18 16:12:17,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 16:12:17,132 INFO L93 Difference]: Finished difference Result 2623 states and 3670 transitions. [2021-12-18 16:12:17,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-18 16:12:17,134 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 4 states have internal predecessors, (37), 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 71 [2021-12-18 16:12:17,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 16:12:17,148 INFO L225 Difference]: With dead ends: 2623 [2021-12-18 16:12:17,149 INFO L226 Difference]: Without dead ends: 1325 [2021-12-18 16:12:17,163 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2021-12-18 16:12:17,165 INFO L933 BasicCegarLoop]: 1633 mSDtfsCounter, 2286 mSDsluCounter, 2063 mSDsCounter, 0 mSdLazyCounter, 1288 mSolverCounterSat, 1298 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2523 SdHoareTripleChecker+Valid, 3696 SdHoareTripleChecker+Invalid, 2586 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1298 IncrementalHoareTripleChecker+Valid, 1288 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2021-12-18 16:12:17,166 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2523 Valid, 3696 Invalid, 2586 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1298 Valid, 1288 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2021-12-18 16:12:17,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1325 states. [2021-12-18 16:12:17,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1325 to 1325. [2021-12-18 16:12:17,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1325 states, 824 states have (on average 1.2063106796116505) internal successors, (994), 871 states have internal predecessors, (994), 379 states have call successors, (379), 94 states have call predecessors, (379), 93 states have return successors, (377), 375 states have call predecessors, (377), 377 states have call successors, (377) [2021-12-18 16:12:17,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1325 states to 1325 states and 1750 transitions. [2021-12-18 16:12:17,252 INFO L78 Accepts]: Start accepts. Automaton has 1325 states and 1750 transitions. Word has length 71 [2021-12-18 16:12:17,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 16:12:17,253 INFO L470 AbstractCegarLoop]: Abstraction has 1325 states and 1750 transitions. [2021-12-18 16:12:17,253 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (11), 4 states have call predecessors, (11), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2021-12-18 16:12:17,253 INFO L276 IsEmpty]: Start isEmpty. Operand 1325 states and 1750 transitions. [2021-12-18 16:12:17,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2021-12-18 16:12:17,255 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 16:12:17,256 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 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] [2021-12-18 16:12:17,256 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-18 16:12:17,256 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_linux_block_genhd_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2021-12-18 16:12:17,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 16:12:17,257 INFO L85 PathProgramCache]: Analyzing trace with hash -1010288334, now seen corresponding path program 1 times [2021-12-18 16:12:17,257 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 16:12:17,257 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [624668046] [2021-12-18 16:12:17,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 16:12:17,257 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 16:12:17,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:17,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 16:12:17,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:17,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-18 16:12:17,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:17,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-12-18 16:12:17,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:17,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-18 16:12:17,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:17,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-18 16:12:17,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:17,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-18 16:12:17,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:17,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-12-18 16:12:17,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:17,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:12:17,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:17,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-12-18 16:12:17,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:17,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-18 16:12:17,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:17,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-18 16:12:17,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:17,489 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-12-18 16:12:17,490 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 16:12:17,490 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [624668046] [2021-12-18 16:12:17,490 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [624668046] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 16:12:17,490 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 16:12:17,490 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-18 16:12:17,490 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1148185619] [2021-12-18 16:12:17,490 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 16:12:17,491 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 16:12:17,492 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 16:12:17,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 16:12:17,492 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-18 16:12:17,492 INFO L87 Difference]: Start difference. First operand 1325 states and 1750 transitions. Second operand has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (12), 4 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2021-12-18 16:12:19,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 16:12:19,869 INFO L93 Difference]: Finished difference Result 1325 states and 1750 transitions. [2021-12-18 16:12:19,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-18 16:12:19,869 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 4 states have internal predecessors, (41), 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 77 [2021-12-18 16:12:19,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 16:12:19,876 INFO L225 Difference]: With dead ends: 1325 [2021-12-18 16:12:19,876 INFO L226 Difference]: Without dead ends: 1323 [2021-12-18 16:12:19,877 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2021-12-18 16:12:19,878 INFO L933 BasicCegarLoop]: 1613 mSDtfsCounter, 2252 mSDsluCounter, 2041 mSDsCounter, 0 mSdLazyCounter, 1276 mSolverCounterSat, 1288 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2486 SdHoareTripleChecker+Valid, 3654 SdHoareTripleChecker+Invalid, 2564 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1288 IncrementalHoareTripleChecker+Valid, 1276 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2021-12-18 16:12:19,878 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2486 Valid, 3654 Invalid, 2564 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1288 Valid, 1276 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2021-12-18 16:12:19,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1323 states. [2021-12-18 16:12:19,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1323 to 1323. [2021-12-18 16:12:19,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1323 states, 823 states have (on average 1.2053462940461726) internal successors, (992), 869 states have internal predecessors, (992), 379 states have call successors, (379), 94 states have call predecessors, (379), 93 states have return successors, (377), 375 states have call predecessors, (377), 377 states have call successors, (377) [2021-12-18 16:12:19,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1323 states to 1323 states and 1748 transitions. [2021-12-18 16:12:19,941 INFO L78 Accepts]: Start accepts. Automaton has 1323 states and 1748 transitions. Word has length 77 [2021-12-18 16:12:19,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 16:12:19,943 INFO L470 AbstractCegarLoop]: Abstraction has 1323 states and 1748 transitions. [2021-12-18 16:12:19,944 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (12), 4 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2021-12-18 16:12:19,944 INFO L276 IsEmpty]: Start isEmpty. Operand 1323 states and 1748 transitions. [2021-12-18 16:12:19,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2021-12-18 16:12:19,948 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 16:12:19,949 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 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] [2021-12-18 16:12:19,949 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-18 16:12:19,949 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_linux_block_queue_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2021-12-18 16:12:19,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 16:12:19,950 INFO L85 PathProgramCache]: Analyzing trace with hash -679234807, now seen corresponding path program 1 times [2021-12-18 16:12:19,950 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 16:12:19,950 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [371723768] [2021-12-18 16:12:19,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 16:12:19,951 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 16:12:20,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:20,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 16:12:20,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:20,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-18 16:12:20,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:20,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-12-18 16:12:20,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:20,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-18 16:12:20,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:20,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-18 16:12:20,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:20,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-18 16:12:20,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:20,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-12-18 16:12:20,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:20,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:12:20,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:20,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-12-18 16:12:20,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:20,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-18 16:12:20,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:20,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-18 16:12:20,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:20,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-18 16:12:20,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:20,218 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-12-18 16:12:20,218 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 16:12:20,218 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [371723768] [2021-12-18 16:12:20,218 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [371723768] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 16:12:20,218 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 16:12:20,219 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-18 16:12:20,219 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1182966753] [2021-12-18 16:12:20,219 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 16:12:20,219 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 16:12:20,219 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 16:12:20,220 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 16:12:20,220 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-18 16:12:20,221 INFO L87 Difference]: Start difference. First operand 1323 states and 1748 transitions. Second operand has 6 states, 6 states have (on average 7.5) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (13), 4 states have call predecessors, (13), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-12-18 16:12:22,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 16:12:22,548 INFO L93 Difference]: Finished difference Result 1323 states and 1748 transitions. [2021-12-18 16:12:22,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-18 16:12:22,549 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (13), 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 83 [2021-12-18 16:12:22,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 16:12:22,555 INFO L225 Difference]: With dead ends: 1323 [2021-12-18 16:12:22,555 INFO L226 Difference]: Without dead ends: 1321 [2021-12-18 16:12:22,556 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2021-12-18 16:12:22,556 INFO L933 BasicCegarLoop]: 1611 mSDtfsCounter, 2246 mSDsluCounter, 2041 mSDsCounter, 0 mSdLazyCounter, 1274 mSolverCounterSat, 1288 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2479 SdHoareTripleChecker+Valid, 3652 SdHoareTripleChecker+Invalid, 2562 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1288 IncrementalHoareTripleChecker+Valid, 1274 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2021-12-18 16:12:22,557 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2479 Valid, 3652 Invalid, 2562 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1288 Valid, 1274 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2021-12-18 16:12:22,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1321 states. [2021-12-18 16:12:22,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1321 to 1321. [2021-12-18 16:12:22,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1321 states, 822 states have (on average 1.2043795620437956) internal successors, (990), 867 states have internal predecessors, (990), 379 states have call successors, (379), 94 states have call predecessors, (379), 93 states have return successors, (377), 375 states have call predecessors, (377), 377 states have call successors, (377) [2021-12-18 16:12:22,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1321 states to 1321 states and 1746 transitions. [2021-12-18 16:12:22,615 INFO L78 Accepts]: Start accepts. Automaton has 1321 states and 1746 transitions. Word has length 83 [2021-12-18 16:12:22,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 16:12:22,617 INFO L470 AbstractCegarLoop]: Abstraction has 1321 states and 1746 transitions. [2021-12-18 16:12:22,617 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (13), 4 states have call predecessors, (13), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-12-18 16:12:22,617 INFO L276 IsEmpty]: Start isEmpty. Operand 1321 states and 1746 transitions. [2021-12-18 16:12:22,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2021-12-18 16:12:22,619 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 16:12:22,620 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 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] [2021-12-18 16:12:22,620 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-18 16:12:22,620 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_linux_block_request_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2021-12-18 16:12:22,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 16:12:22,620 INFO L85 PathProgramCache]: Analyzing trace with hash -472975165, now seen corresponding path program 1 times [2021-12-18 16:12:22,620 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 16:12:22,621 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [503098965] [2021-12-18 16:12:22,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 16:12:22,621 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 16:12:22,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:22,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 16:12:22,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:22,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-18 16:12:22,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:22,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-12-18 16:12:22,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:22,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-18 16:12:22,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:22,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-18 16:12:22,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:22,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-18 16:12:22,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:22,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-12-18 16:12:22,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:22,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:12:22,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:22,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-12-18 16:12:22,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:22,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-18 16:12:22,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:22,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-18 16:12:22,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:22,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-18 16:12:22,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:22,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-12-18 16:12:22,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:22,806 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-12-18 16:12:22,806 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 16:12:22,806 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [503098965] [2021-12-18 16:12:22,806 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [503098965] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 16:12:22,806 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 16:12:22,807 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-18 16:12:22,807 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2027270667] [2021-12-18 16:12:22,807 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 16:12:22,807 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 16:12:22,807 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 16:12:22,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 16:12:22,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-18 16:12:22,808 INFO L87 Difference]: Start difference. First operand 1321 states and 1746 transitions. Second operand has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (14), 4 states have call predecessors, (14), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2021-12-18 16:12:24,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 16:12:24,982 INFO L93 Difference]: Finished difference Result 1321 states and 1746 transitions. [2021-12-18 16:12:24,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-18 16:12:24,982 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (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 89 [2021-12-18 16:12:24,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 16:12:24,988 INFO L225 Difference]: With dead ends: 1321 [2021-12-18 16:12:24,988 INFO L226 Difference]: Without dead ends: 1319 [2021-12-18 16:12:24,989 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2021-12-18 16:12:24,989 INFO L933 BasicCegarLoop]: 1609 mSDtfsCounter, 2240 mSDsluCounter, 2041 mSDsCounter, 0 mSdLazyCounter, 1272 mSolverCounterSat, 1288 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2472 SdHoareTripleChecker+Valid, 3650 SdHoareTripleChecker+Invalid, 2560 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1288 IncrementalHoareTripleChecker+Valid, 1272 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2021-12-18 16:12:24,990 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2472 Valid, 3650 Invalid, 2560 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1288 Valid, 1272 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2021-12-18 16:12:24,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1319 states. [2021-12-18 16:12:25,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1319 to 1319. [2021-12-18 16:12:25,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1319 states, 821 states have (on average 1.2034104750304506) internal successors, (988), 865 states have internal predecessors, (988), 379 states have call successors, (379), 94 states have call predecessors, (379), 93 states have return successors, (377), 375 states have call predecessors, (377), 377 states have call successors, (377) [2021-12-18 16:12:25,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1319 states to 1319 states and 1744 transitions. [2021-12-18 16:12:25,026 INFO L78 Accepts]: Start accepts. Automaton has 1319 states and 1744 transitions. Word has length 89 [2021-12-18 16:12:25,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 16:12:25,026 INFO L470 AbstractCegarLoop]: Abstraction has 1319 states and 1744 transitions. [2021-12-18 16:12:25,027 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (14), 4 states have call predecessors, (14), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2021-12-18 16:12:25,027 INFO L276 IsEmpty]: Start isEmpty. Operand 1319 states and 1744 transitions. [2021-12-18 16:12:25,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2021-12-18 16:12:25,027 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 16:12:25,028 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 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] [2021-12-18 16:12:25,028 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-18 16:12:25,028 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_linux_drivers_base_class_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2021-12-18 16:12:25,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 16:12:25,028 INFO L85 PathProgramCache]: Analyzing trace with hash -1464061347, now seen corresponding path program 1 times [2021-12-18 16:12:25,028 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 16:12:25,029 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [851809249] [2021-12-18 16:12:25,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 16:12:25,029 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 16:12:25,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:25,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 16:12:25,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:25,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-18 16:12:25,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:25,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-12-18 16:12:25,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:25,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-18 16:12:25,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:25,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-18 16:12:25,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:25,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-18 16:12:25,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:25,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-12-18 16:12:25,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:25,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:12:25,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:25,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-12-18 16:12:25,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:25,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-18 16:12:25,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:25,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-18 16:12:25,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:25,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-18 16:12:25,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:25,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-12-18 16:12:25,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:25,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-18 16:12:25,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:25,240 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-12-18 16:12:25,240 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 16:12:25,240 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [851809249] [2021-12-18 16:12:25,240 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [851809249] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 16:12:25,241 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 16:12:25,241 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-18 16:12:25,241 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [983091102] [2021-12-18 16:12:25,241 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 16:12:25,241 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 16:12:25,241 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 16:12:25,242 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 16:12:25,242 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-18 16:12:25,242 INFO L87 Difference]: Start difference. First operand 1319 states and 1744 transitions. Second operand has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (15), 4 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-12-18 16:12:27,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 16:12:27,464 INFO L93 Difference]: Finished difference Result 1319 states and 1744 transitions. [2021-12-18 16:12:27,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-18 16:12:27,464 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 4 states have internal predecessors, (53), 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 95 [2021-12-18 16:12:27,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 16:12:27,470 INFO L225 Difference]: With dead ends: 1319 [2021-12-18 16:12:27,470 INFO L226 Difference]: Without dead ends: 1317 [2021-12-18 16:12:27,471 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2021-12-18 16:12:27,471 INFO L933 BasicCegarLoop]: 1607 mSDtfsCounter, 2234 mSDsluCounter, 2041 mSDsCounter, 0 mSdLazyCounter, 1270 mSolverCounterSat, 1288 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2465 SdHoareTripleChecker+Valid, 3648 SdHoareTripleChecker+Invalid, 2558 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1288 IncrementalHoareTripleChecker+Valid, 1270 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2021-12-18 16:12:27,471 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2465 Valid, 3648 Invalid, 2558 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1288 Valid, 1270 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2021-12-18 16:12:27,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1317 states. [2021-12-18 16:12:27,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1317 to 1317. [2021-12-18 16:12:27,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1317 states, 820 states have (on average 1.2024390243902439) internal successors, (986), 863 states have internal predecessors, (986), 379 states have call successors, (379), 94 states have call predecessors, (379), 93 states have return successors, (377), 375 states have call predecessors, (377), 377 states have call successors, (377) [2021-12-18 16:12:27,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1317 states to 1317 states and 1742 transitions. [2021-12-18 16:12:27,509 INFO L78 Accepts]: Start accepts. Automaton has 1317 states and 1742 transitions. Word has length 95 [2021-12-18 16:12:27,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 16:12:27,509 INFO L470 AbstractCegarLoop]: Abstraction has 1317 states and 1742 transitions. [2021-12-18 16:12:27,509 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (15), 4 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-12-18 16:12:27,509 INFO L276 IsEmpty]: Start isEmpty. Operand 1317 states and 1742 transitions. [2021-12-18 16:12:27,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2021-12-18 16:12:27,510 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 16:12:27,510 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 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] [2021-12-18 16:12:27,510 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-18 16:12:27,511 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_linux_fs_char_dev_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2021-12-18 16:12:27,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 16:12:27,511 INFO L85 PathProgramCache]: Analyzing trace with hash 170587273, now seen corresponding path program 1 times [2021-12-18 16:12:27,511 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 16:12:27,511 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [682290795] [2021-12-18 16:12:27,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 16:12:27,511 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 16:12:27,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:27,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 16:12:27,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:27,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-18 16:12:27,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:27,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-12-18 16:12:27,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:27,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-18 16:12:27,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:27,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-18 16:12:27,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:27,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-18 16:12:27,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:27,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-12-18 16:12:27,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:27,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:12:27,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:27,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-12-18 16:12:27,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:27,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-18 16:12:27,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:27,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-18 16:12:27,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:27,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-18 16:12:27,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:27,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-12-18 16:12:27,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:27,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-18 16:12:27,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:27,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-18 16:12:27,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:27,704 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-12-18 16:12:27,704 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 16:12:27,704 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [682290795] [2021-12-18 16:12:27,704 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [682290795] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 16:12:27,704 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 16:12:27,704 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-18 16:12:27,705 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1892287809] [2021-12-18 16:12:27,705 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 16:12:27,705 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 16:12:27,706 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 16:12:27,706 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 16:12:27,706 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-18 16:12:27,706 INFO L87 Difference]: Start difference. First operand 1317 states and 1742 transitions. Second operand has 6 states, 6 states have (on average 9.5) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (16), 4 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2021-12-18 16:12:29,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 16:12:29,947 INFO L93 Difference]: Finished difference Result 1317 states and 1742 transitions. [2021-12-18 16:12:29,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-18 16:12:29,947 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 4 states have internal predecessors, (57), 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 101 [2021-12-18 16:12:29,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 16:12:29,952 INFO L225 Difference]: With dead ends: 1317 [2021-12-18 16:12:29,952 INFO L226 Difference]: Without dead ends: 1315 [2021-12-18 16:12:29,953 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2021-12-18 16:12:29,954 INFO L933 BasicCegarLoop]: 1605 mSDtfsCounter, 2228 mSDsluCounter, 2041 mSDsCounter, 0 mSdLazyCounter, 1268 mSolverCounterSat, 1288 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2458 SdHoareTripleChecker+Valid, 3646 SdHoareTripleChecker+Invalid, 2556 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1288 IncrementalHoareTripleChecker+Valid, 1268 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2021-12-18 16:12:29,954 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2458 Valid, 3646 Invalid, 2556 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1288 Valid, 1268 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2021-12-18 16:12:29,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1315 states. [2021-12-18 16:12:29,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1315 to 1315. [2021-12-18 16:12:29,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1315 states, 819 states have (on average 1.2014652014652014) internal successors, (984), 861 states have internal predecessors, (984), 379 states have call successors, (379), 94 states have call predecessors, (379), 93 states have return successors, (377), 375 states have call predecessors, (377), 377 states have call successors, (377) [2021-12-18 16:12:29,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1315 states to 1315 states and 1740 transitions. [2021-12-18 16:12:29,992 INFO L78 Accepts]: Start accepts. Automaton has 1315 states and 1740 transitions. Word has length 101 [2021-12-18 16:12:29,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 16:12:29,992 INFO L470 AbstractCegarLoop]: Abstraction has 1315 states and 1740 transitions. [2021-12-18 16:12:29,993 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (16), 4 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2021-12-18 16:12:29,993 INFO L276 IsEmpty]: Start isEmpty. Operand 1315 states and 1740 transitions. [2021-12-18 16:12:29,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2021-12-18 16:12:29,994 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 16:12:29,994 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 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] [2021-12-18 16:12:29,994 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-18 16:12:29,994 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2021-12-18 16:12:29,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 16:12:29,994 INFO L85 PathProgramCache]: Analyzing trace with hash 834064536, now seen corresponding path program 1 times [2021-12-18 16:12:29,995 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 16:12:29,995 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1007832192] [2021-12-18 16:12:29,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 16:12:29,995 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 16:12:30,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:30,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 16:12:30,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:30,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-18 16:12:30,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:30,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-12-18 16:12:30,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:30,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-18 16:12:30,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:30,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-18 16:12:30,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:30,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-18 16:12:30,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:30,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-12-18 16:12:30,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:30,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:12:30,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:30,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-12-18 16:12:30,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:30,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-18 16:12:30,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:30,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-18 16:12:30,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:30,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-18 16:12:30,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:30,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-12-18 16:12:30,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:30,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-18 16:12:30,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:30,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-18 16:12:30,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:30,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-12-18 16:12:30,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:30,151 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-12-18 16:12:30,151 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 16:12:30,151 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1007832192] [2021-12-18 16:12:30,151 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1007832192] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 16:12:30,152 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 16:12:30,152 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-18 16:12:30,152 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1865531076] [2021-12-18 16:12:30,152 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 16:12:30,152 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 16:12:30,152 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 16:12:30,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 16:12:30,153 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-18 16:12:30,154 INFO L87 Difference]: Start difference. First operand 1315 states and 1740 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, (17), 4 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-12-18 16:12:32,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 16:12:32,261 INFO L93 Difference]: Finished difference Result 1315 states and 1740 transitions. [2021-12-18 16:12:32,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-18 16:12:32,261 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, (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 107 [2021-12-18 16:12:32,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 16:12:32,266 INFO L225 Difference]: With dead ends: 1315 [2021-12-18 16:12:32,266 INFO L226 Difference]: Without dead ends: 1313 [2021-12-18 16:12:32,267 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2021-12-18 16:12:32,267 INFO L933 BasicCegarLoop]: 1603 mSDtfsCounter, 2222 mSDsluCounter, 2041 mSDsCounter, 0 mSdLazyCounter, 1266 mSolverCounterSat, 1288 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2451 SdHoareTripleChecker+Valid, 3644 SdHoareTripleChecker+Invalid, 2554 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1288 IncrementalHoareTripleChecker+Valid, 1266 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2021-12-18 16:12:32,267 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2451 Valid, 3644 Invalid, 2554 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1288 Valid, 1266 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2021-12-18 16:12:32,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1313 states. [2021-12-18 16:12:32,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1313 to 1313. [2021-12-18 16:12:32,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1313 states, 818 states have (on average 1.2004889975550121) internal successors, (982), 859 states have internal predecessors, (982), 379 states have call successors, (379), 94 states have call predecessors, (379), 93 states have return successors, (377), 375 states have call predecessors, (377), 377 states have call successors, (377) [2021-12-18 16:12:32,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1313 states to 1313 states and 1738 transitions. [2021-12-18 16:12:32,305 INFO L78 Accepts]: Start accepts. Automaton has 1313 states and 1738 transitions. Word has length 107 [2021-12-18 16:12:32,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 16:12:32,306 INFO L470 AbstractCegarLoop]: Abstraction has 1313 states and 1738 transitions. [2021-12-18 16:12:32,306 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (17), 4 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-12-18 16:12:32,306 INFO L276 IsEmpty]: Start isEmpty. Operand 1313 states and 1738 transitions. [2021-12-18 16:12:32,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-12-18 16:12:32,307 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 16:12:32,307 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 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] [2021-12-18 16:12:32,307 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-18 16:12:32,307 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_linux_kernel_locking_rwlock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2021-12-18 16:12:32,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 16:12:32,308 INFO L85 PathProgramCache]: Analyzing trace with hash 1937534816, now seen corresponding path program 1 times [2021-12-18 16:12:32,308 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 16:12:32,308 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [475542811] [2021-12-18 16:12:32,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 16:12:32,308 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 16:12:32,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:32,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 16:12:32,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:32,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-18 16:12:32,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:32,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-12-18 16:12:32,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:32,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-18 16:12:32,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:32,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-18 16:12:32,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:32,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-18 16:12:32,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:32,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-12-18 16:12:32,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:32,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:12:32,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:32,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-12-18 16:12:32,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:32,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-18 16:12:32,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:32,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-18 16:12:32,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:32,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-18 16:12:32,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:32,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-12-18 16:12:32,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:32,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-18 16:12:32,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:32,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-18 16:12:32,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:32,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-12-18 16:12:32,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:32,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-12-18 16:12:32,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:32,468 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-12-18 16:12:32,468 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 16:12:32,468 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [475542811] [2021-12-18 16:12:32,469 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [475542811] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 16:12:32,469 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 16:12:32,469 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-18 16:12:32,469 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1918785068] [2021-12-18 16:12:32,469 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 16:12:32,469 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 16:12:32,470 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 16:12:32,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 16:12:32,470 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-18 16:12:32,470 INFO L87 Difference]: Start difference. First operand 1313 states and 1738 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, (18), 4 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2021-12-18 16:12:34,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 16:12:34,625 INFO L93 Difference]: Finished difference Result 1313 states and 1738 transitions. [2021-12-18 16:12:34,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-18 16:12:34,626 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, (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 113 [2021-12-18 16:12:34,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 16:12:34,631 INFO L225 Difference]: With dead ends: 1313 [2021-12-18 16:12:34,631 INFO L226 Difference]: Without dead ends: 1311 [2021-12-18 16:12:34,632 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2021-12-18 16:12:34,632 INFO L933 BasicCegarLoop]: 1601 mSDtfsCounter, 2220 mSDsluCounter, 2041 mSDsCounter, 0 mSdLazyCounter, 1260 mSolverCounterSat, 1288 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2448 SdHoareTripleChecker+Valid, 3642 SdHoareTripleChecker+Invalid, 2548 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1288 IncrementalHoareTripleChecker+Valid, 1260 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2021-12-18 16:12:34,632 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2448 Valid, 3642 Invalid, 2548 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1288 Valid, 1260 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2021-12-18 16:12:34,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1311 states. [2021-12-18 16:12:34,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1311 to 1311. [2021-12-18 16:12:34,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1311 states, 817 states have (on average 1.1995104039167688) internal successors, (980), 857 states have internal predecessors, (980), 379 states have call successors, (379), 94 states have call predecessors, (379), 93 states have return successors, (377), 375 states have call predecessors, (377), 377 states have call successors, (377) [2021-12-18 16:12:34,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1311 states to 1311 states and 1736 transitions. [2021-12-18 16:12:34,672 INFO L78 Accepts]: Start accepts. Automaton has 1311 states and 1736 transitions. Word has length 113 [2021-12-18 16:12:34,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 16:12:34,672 INFO L470 AbstractCegarLoop]: Abstraction has 1311 states and 1736 transitions. [2021-12-18 16:12:34,672 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 4 states have internal predecessors, (65), 2 states have call successors, (18), 4 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2021-12-18 16:12:34,673 INFO L276 IsEmpty]: Start isEmpty. Operand 1311 states and 1736 transitions. [2021-12-18 16:12:34,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2021-12-18 16:12:34,674 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 16:12:34,674 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 16:12:34,674 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-18 16:12:34,674 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2021-12-18 16:12:34,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 16:12:34,675 INFO L85 PathProgramCache]: Analyzing trace with hash 1447935505, now seen corresponding path program 1 times [2021-12-18 16:12:34,675 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 16:12:34,675 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1831858408] [2021-12-18 16:12:34,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 16:12:34,675 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 16:12:34,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:34,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 16:12:34,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:34,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-18 16:12:34,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:34,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-12-18 16:12:34,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:34,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-18 16:12:34,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:34,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-12-18 16:12:34,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:34,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:12:34,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:34,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:12:34,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:34,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 16:12:34,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:34,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-18 16:12:34,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:34,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:12:34,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:34,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:12:34,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:34,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 16:12:34,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:34,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-12-18 16:12:34,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:34,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:12:34,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:34,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:12:34,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:34,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 16:12:34,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:34,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-12-18 16:12:34,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:34,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:12:34,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:34,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:12:34,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:34,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 16:12:34,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:34,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-12-18 16:12:34,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:34,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:12:34,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:34,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:12:34,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:34,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 16:12:34,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:34,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-12-18 16:12:34,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:34,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-12-18 16:12:34,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:34,922 INFO L134 CoverageAnalysis]: Checked inductivity of 377 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 377 trivial. 0 not checked. [2021-12-18 16:12:34,923 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 16:12:34,923 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1831858408] [2021-12-18 16:12:34,923 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1831858408] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 16:12:34,923 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 16:12:34,923 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-18 16:12:34,923 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [885931277] [2021-12-18 16:12:34,923 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 16:12:34,924 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 16:12:34,924 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 16:12:34,925 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 16:12:34,925 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-18 16:12:34,925 INFO L87 Difference]: Start difference. First operand 1311 states and 1736 transitions. Second operand has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 3 states have internal predecessors, (44), 2 states have call successors, (14), 4 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-12-18 16:12:37,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 16:12:37,512 INFO L93 Difference]: Finished difference Result 2436 states and 3207 transitions. [2021-12-18 16:12:37,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-18 16:12:37,512 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 3 states have internal predecessors, (44), 2 states have call successors, (14), 4 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 155 [2021-12-18 16:12:37,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 16:12:37,518 INFO L225 Difference]: With dead ends: 2436 [2021-12-18 16:12:37,518 INFO L226 Difference]: Without dead ends: 1321 [2021-12-18 16:12:37,521 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-12-18 16:12:37,522 INFO L933 BasicCegarLoop]: 1345 mSDtfsCounter, 2592 mSDsluCounter, 1381 mSDsCounter, 0 mSdLazyCounter, 1394 mSolverCounterSat, 1764 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2833 SdHoareTripleChecker+Valid, 2726 SdHoareTripleChecker+Invalid, 3158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1764 IncrementalHoareTripleChecker+Valid, 1394 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2021-12-18 16:12:37,522 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2833 Valid, 2726 Invalid, 3158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1764 Valid, 1394 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2021-12-18 16:12:37,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1321 states. [2021-12-18 16:12:37,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1321 to 1307. [2021-12-18 16:12:37,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1307 states, 814 states have (on average 1.1977886977886978) internal successors, (975), 853 states have internal predecessors, (975), 379 states have call successors, (379), 94 states have call predecessors, (379), 93 states have return successors, (377), 375 states have call predecessors, (377), 377 states have call successors, (377) [2021-12-18 16:12:37,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1307 states to 1307 states and 1731 transitions. [2021-12-18 16:12:37,572 INFO L78 Accepts]: Start accepts. Automaton has 1307 states and 1731 transitions. Word has length 155 [2021-12-18 16:12:37,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 16:12:37,572 INFO L470 AbstractCegarLoop]: Abstraction has 1307 states and 1731 transitions. [2021-12-18 16:12:37,572 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 3 states have internal predecessors, (44), 2 states have call successors, (14), 4 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-12-18 16:12:37,572 INFO L276 IsEmpty]: Start isEmpty. Operand 1307 states and 1731 transitions. [2021-12-18 16:12:37,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-12-18 16:12:37,574 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 16:12:37,574 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 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] [2021-12-18 16:12:37,574 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-12-18 16:12:37,574 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_linux_kernel_locking_rwlock_check_final_stateErr1ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2021-12-18 16:12:37,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 16:12:37,575 INFO L85 PathProgramCache]: Analyzing trace with hash -2044715357, now seen corresponding path program 1 times [2021-12-18 16:12:37,575 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 16:12:37,575 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1005937462] [2021-12-18 16:12:37,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 16:12:37,575 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 16:12:37,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:37,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 16:12:37,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:37,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-18 16:12:37,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:37,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-12-18 16:12:37,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:37,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-18 16:12:37,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:37,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-18 16:12:37,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:37,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-18 16:12:37,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:37,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-12-18 16:12:37,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:37,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:12:37,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:37,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-12-18 16:12:37,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:37,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-18 16:12:37,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:37,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-18 16:12:37,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:37,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-18 16:12:37,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:37,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-12-18 16:12:37,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:37,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-18 16:12:37,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:37,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-18 16:12:37,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:37,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-12-18 16:12:37,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:37,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-12-18 16:12:37,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:37,734 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-12-18 16:12:37,734 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 16:12:37,734 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1005937462] [2021-12-18 16:12:37,734 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1005937462] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 16:12:37,734 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 16:12:37,734 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-18 16:12:37,735 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1930216251] [2021-12-18 16:12:37,735 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 16:12:37,735 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 16:12:37,735 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 16:12:37,735 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 16:12:37,736 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-18 16:12:37,736 INFO L87 Difference]: Start difference. First operand 1307 states and 1731 transitions. Second operand has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (18), 4 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2021-12-18 16:12:39,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 16:12:39,906 INFO L93 Difference]: Finished difference Result 1307 states and 1731 transitions. [2021-12-18 16:12:39,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-18 16:12:39,906 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 4 states have internal predecessors, (67), 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 115 [2021-12-18 16:12:39,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 16:12:39,915 INFO L225 Difference]: With dead ends: 1307 [2021-12-18 16:12:39,915 INFO L226 Difference]: Without dead ends: 1305 [2021-12-18 16:12:39,916 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2021-12-18 16:12:39,916 INFO L933 BasicCegarLoop]: 1594 mSDtfsCounter, 2203 mSDsluCounter, 2027 mSDsCounter, 0 mSdLazyCounter, 1261 mSolverCounterSat, 1288 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2431 SdHoareTripleChecker+Valid, 3621 SdHoareTripleChecker+Invalid, 2549 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1288 IncrementalHoareTripleChecker+Valid, 1261 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2021-12-18 16:12:39,917 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2431 Valid, 3621 Invalid, 2549 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1288 Valid, 1261 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2021-12-18 16:12:39,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1305 states. [2021-12-18 16:12:39,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1305 to 1305. [2021-12-18 16:12:39,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1305 states, 813 states have (on average 1.1968019680196802) internal successors, (973), 851 states have internal predecessors, (973), 379 states have call successors, (379), 94 states have call predecessors, (379), 93 states have return successors, (377), 375 states have call predecessors, (377), 377 states have call successors, (377) [2021-12-18 16:12:39,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1305 states to 1305 states and 1729 transitions. [2021-12-18 16:12:39,974 INFO L78 Accepts]: Start accepts. Automaton has 1305 states and 1729 transitions. Word has length 115 [2021-12-18 16:12:39,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 16:12:39,975 INFO L470 AbstractCegarLoop]: Abstraction has 1305 states and 1729 transitions. [2021-12-18 16:12:39,975 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (18), 4 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2021-12-18 16:12:39,975 INFO L276 IsEmpty]: Start isEmpty. Operand 1305 states and 1729 transitions. [2021-12-18 16:12:39,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2021-12-18 16:12:39,976 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 16:12:39,976 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 16:12:39,977 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-12-18 16:12:39,977 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2021-12-18 16:12:39,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 16:12:39,977 INFO L85 PathProgramCache]: Analyzing trace with hash -287691040, now seen corresponding path program 1 times [2021-12-18 16:12:39,977 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 16:12:39,977 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1095020411] [2021-12-18 16:12:39,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 16:12:39,978 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 16:12:40,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:40,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 16:12:40,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:40,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-18 16:12:40,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:40,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-12-18 16:12:40,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:40,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-18 16:12:40,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:40,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-12-18 16:12:40,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:40,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:12:40,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:40,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:12:40,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:40,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 16:12:40,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:40,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-18 16:12:40,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:40,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:12:40,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:40,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:12:40,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:40,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 16:12:40,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:40,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-12-18 16:12:40,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:40,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:12:40,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:40,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:12:40,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:40,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 16:12:40,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:40,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-12-18 16:12:40,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:40,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:12:40,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:40,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:12:40,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:40,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 16:12:40,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:40,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-12-18 16:12:40,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:40,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:12:40,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:40,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:12:40,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:40,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 16:12:40,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:40,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-12-18 16:12:40,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:40,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-12-18 16:12:40,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:40,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-12-18 16:12:40,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:40,216 INFO L134 CoverageAnalysis]: Checked inductivity of 380 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 378 trivial. 0 not checked. [2021-12-18 16:12:40,216 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 16:12:40,216 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1095020411] [2021-12-18 16:12:40,216 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1095020411] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-18 16:12:40,216 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [799375593] [2021-12-18 16:12:40,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 16:12:40,217 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-18 16:12:40,217 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-18 16:12:40,218 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-18 16:12:40,231 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-18 16:12:40,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:40,745 INFO L263 TraceCheckSpWp]: Trace formula consists of 2056 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-18 16:12:40,756 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-18 16:12:40,964 INFO L134 CoverageAnalysis]: Checked inductivity of 380 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 377 trivial. 0 not checked. [2021-12-18 16:12:40,964 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-18 16:12:40,964 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [799375593] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 16:12:40,964 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-18 16:12:40,964 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2021-12-18 16:12:40,965 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1786373841] [2021-12-18 16:12:40,965 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 16:12:40,965 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-18 16:12:40,965 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 16:12:40,965 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-18 16:12:40,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2021-12-18 16:12:40,966 INFO L87 Difference]: Start difference. First operand 1305 states and 1729 transitions. Second operand has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2021-12-18 16:12:41,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 16:12:41,030 INFO L93 Difference]: Finished difference Result 2463 states and 3235 transitions. [2021-12-18 16:12:41,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-18 16:12:41,030 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 161 [2021-12-18 16:12:41,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 16:12:41,036 INFO L225 Difference]: With dead ends: 2463 [2021-12-18 16:12:41,036 INFO L226 Difference]: Without dead ends: 1357 [2021-12-18 16:12:41,039 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 219 GetRequests, 210 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2021-12-18 16:12:41,040 INFO L933 BasicCegarLoop]: 1788 mSDtfsCounter, 1707 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1707 SdHoareTripleChecker+Valid, 1855 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-18 16:12:41,040 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1707 Valid, 1855 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-18 16:12:41,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1357 states. [2021-12-18 16:12:41,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1357 to 1354. [2021-12-18 16:12:41,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1354 states, 842 states have (on average 1.1912114014251782) internal successors, (1003), 883 states have internal predecessors, (1003), 394 states have call successors, (394), 100 states have call predecessors, (394), 99 states have return successors, (392), 388 states have call predecessors, (392), 392 states have call successors, (392) [2021-12-18 16:12:41,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1354 states to 1354 states and 1789 transitions. [2021-12-18 16:12:41,109 INFO L78 Accepts]: Start accepts. Automaton has 1354 states and 1789 transitions. Word has length 161 [2021-12-18 16:12:41,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 16:12:41,110 INFO L470 AbstractCegarLoop]: Abstraction has 1354 states and 1789 transitions. [2021-12-18 16:12:41,110 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2021-12-18 16:12:41,111 INFO L276 IsEmpty]: Start isEmpty. Operand 1354 states and 1789 transitions. [2021-12-18 16:12:41,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2021-12-18 16:12:41,112 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 16:12:41,112 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 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] [2021-12-18 16:12:41,131 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2021-12-18 16:12:41,319 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2021-12-18 16:12:41,320 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_linux_kernel_module_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2021-12-18 16:12:41,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 16:12:41,320 INFO L85 PathProgramCache]: Analyzing trace with hash 1167838511, now seen corresponding path program 1 times [2021-12-18 16:12:41,320 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 16:12:41,320 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1462042826] [2021-12-18 16:12:41,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 16:12:41,321 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 16:12:41,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:41,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 16:12:41,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:41,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-18 16:12:41,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:41,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-12-18 16:12:41,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:41,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-18 16:12:41,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:41,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-18 16:12:41,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:41,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-18 16:12:41,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:41,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-12-18 16:12:41,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:41,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:12:41,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:41,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-12-18 16:12:41,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:41,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-18 16:12:41,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:41,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-18 16:12:41,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:41,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-18 16:12:41,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:41,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-12-18 16:12:41,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:41,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-18 16:12:41,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:41,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-18 16:12:41,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:41,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-12-18 16:12:41,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:41,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-12-18 16:12:41,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:41,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-12-18 16:12:41,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:41,503 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-12-18 16:12:41,503 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 16:12:41,503 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1462042826] [2021-12-18 16:12:41,503 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1462042826] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 16:12:41,504 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 16:12:41,504 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-18 16:12:41,504 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1234226150] [2021-12-18 16:12:41,504 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 16:12:41,504 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 16:12:41,504 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 16:12:41,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 16:12:41,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-18 16:12:41,505 INFO L87 Difference]: Start difference. First operand 1354 states and 1789 transitions. Second operand has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (19), 4 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-12-18 16:12:43,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 16:12:43,885 INFO L93 Difference]: Finished difference Result 1354 states and 1789 transitions. [2021-12-18 16:12:43,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-18 16:12:43,885 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 4 states have internal predecessors, (71), 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 121 [2021-12-18 16:12:43,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 16:12:43,891 INFO L225 Difference]: With dead ends: 1354 [2021-12-18 16:12:43,891 INFO L226 Difference]: Without dead ends: 1352 [2021-12-18 16:12:43,892 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2021-12-18 16:12:43,892 INFO L933 BasicCegarLoop]: 1587 mSDtfsCounter, 2194 mSDsluCounter, 2013 mSDsCounter, 0 mSdLazyCounter, 1258 mSolverCounterSat, 1288 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2421 SdHoareTripleChecker+Valid, 3600 SdHoareTripleChecker+Invalid, 2546 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1288 IncrementalHoareTripleChecker+Valid, 1258 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2021-12-18 16:12:43,892 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2421 Valid, 3600 Invalid, 2546 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1288 Valid, 1258 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2021-12-18 16:12:43,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1352 states. [2021-12-18 16:12:43,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1352 to 1352. [2021-12-18 16:12:43,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1352 states, 841 states have (on average 1.1902497027348395) internal successors, (1001), 881 states have internal predecessors, (1001), 394 states have call successors, (394), 100 states have call predecessors, (394), 99 states have return successors, (392), 388 states have call predecessors, (392), 392 states have call successors, (392) [2021-12-18 16:12:43,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1352 states to 1352 states and 1787 transitions. [2021-12-18 16:12:43,940 INFO L78 Accepts]: Start accepts. Automaton has 1352 states and 1787 transitions. Word has length 121 [2021-12-18 16:12:43,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 16:12:43,941 INFO L470 AbstractCegarLoop]: Abstraction has 1352 states and 1787 transitions. [2021-12-18 16:12:43,941 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (19), 4 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-12-18 16:12:43,941 INFO L276 IsEmpty]: Start isEmpty. Operand 1352 states and 1787 transitions. [2021-12-18 16:12:43,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2021-12-18 16:12:43,942 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 16:12:43,942 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2021-12-18 16:12:43,943 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-12-18 16:12:43,943 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2021-12-18 16:12:43,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 16:12:43,943 INFO L85 PathProgramCache]: Analyzing trace with hash -1431177485, now seen corresponding path program 1 times [2021-12-18 16:12:43,943 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 16:12:43,943 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [671134051] [2021-12-18 16:12:43,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 16:12:43,944 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 16:12:43,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:44,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 16:12:44,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:44,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-18 16:12:44,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:44,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-12-18 16:12:44,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:44,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-18 16:12:44,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:44,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-18 16:12:44,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:44,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-18 16:12:44,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:44,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-12-18 16:12:44,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:44,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:12:44,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:44,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-12-18 16:12:44,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:44,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-18 16:12:44,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:44,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-18 16:12:44,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:44,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-12-18 16:12:44,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:44,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:12:44,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:44,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:12:44,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:44,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 16:12:44,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:44,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-12-18 16:12:44,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:44,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:12:44,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:44,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:12:44,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:44,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 16:12:44,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:44,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-18 16:12:44,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:44,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:12:44,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:44,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:12:44,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:44,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 16:12:44,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:44,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-18 16:12:44,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:44,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-12-18 16:12:44,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:44,210 INFO L134 CoverageAnalysis]: Checked inductivity of 258 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 258 trivial. 0 not checked. [2021-12-18 16:12:44,210 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 16:12:44,210 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [671134051] [2021-12-18 16:12:44,210 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [671134051] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 16:12:44,210 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 16:12:44,210 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-18 16:12:44,210 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1379066805] [2021-12-18 16:12:44,211 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 16:12:44,211 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-18 16:12:44,211 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 16:12:44,211 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-18 16:12:44,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-12-18 16:12:44,212 INFO L87 Difference]: Start difference. First operand 1352 states and 1787 transitions. Second operand has 8 states, 8 states have (on average 6.5) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-12-18 16:12:47,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 16:12:47,897 INFO L93 Difference]: Finished difference Result 1585 states and 2030 transitions. [2021-12-18 16:12:47,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-12-18 16:12:47,897 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.5) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 153 [2021-12-18 16:12:47,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 16:12:47,903 INFO L225 Difference]: With dead ends: 1585 [2021-12-18 16:12:47,903 INFO L226 Difference]: Without dead ends: 1583 [2021-12-18 16:12:47,903 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=102, Invalid=204, Unknown=0, NotChecked=0, Total=306 [2021-12-18 16:12:47,904 INFO L933 BasicCegarLoop]: 1653 mSDtfsCounter, 2708 mSDsluCounter, 3751 mSDsCounter, 0 mSdLazyCounter, 2855 mSolverCounterSat, 1878 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2912 SdHoareTripleChecker+Valid, 5404 SdHoareTripleChecker+Invalid, 4733 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1878 IncrementalHoareTripleChecker+Valid, 2855 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2021-12-18 16:12:47,904 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2912 Valid, 5404 Invalid, 4733 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1878 Valid, 2855 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2021-12-18 16:12:47,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1583 states. [2021-12-18 16:12:47,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1583 to 1555. [2021-12-18 16:12:47,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1555 states, 973 states have (on average 1.1788283658787255) internal successors, (1147), 1013 states have internal predecessors, (1147), 426 states have call successors, (426), 139 states have call predecessors, (426), 138 states have return successors, (424), 420 states have call predecessors, (424), 424 states have call successors, (424) [2021-12-18 16:12:47,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1555 states to 1555 states and 1997 transitions. [2021-12-18 16:12:47,961 INFO L78 Accepts]: Start accepts. Automaton has 1555 states and 1997 transitions. Word has length 153 [2021-12-18 16:12:47,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 16:12:47,961 INFO L470 AbstractCegarLoop]: Abstraction has 1555 states and 1997 transitions. [2021-12-18 16:12:47,962 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.5) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-12-18 16:12:47,962 INFO L276 IsEmpty]: Start isEmpty. Operand 1555 states and 1997 transitions. [2021-12-18 16:12:47,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2021-12-18 16:12:47,963 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 16:12:47,963 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 16:12:47,963 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-12-18 16:12:47,963 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_linux_alloc_irq_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2021-12-18 16:12:47,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 16:12:47,964 INFO L85 PathProgramCache]: Analyzing trace with hash 762840808, now seen corresponding path program 1 times [2021-12-18 16:12:47,964 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 16:12:47,964 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1511714672] [2021-12-18 16:12:47,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 16:12:47,964 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 16:12:48,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:48,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 16:12:48,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:48,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-18 16:12:48,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:48,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-12-18 16:12:48,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:48,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-18 16:12:48,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:48,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-12-18 16:12:48,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:48,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:12:48,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:48,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:12:48,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:48,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 16:12:48,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:48,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-18 16:12:48,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:48,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:12:48,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:48,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:12:48,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:48,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 16:12:48,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:48,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-12-18 16:12:48,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:48,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:12:48,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:48,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:12:48,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:48,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 16:12:48,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:48,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-12-18 16:12:48,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:48,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:12:48,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:48,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:12:48,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:48,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 16:12:48,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:48,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-12-18 16:12:48,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:48,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:12:48,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:48,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:12:48,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:48,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 16:12:48,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:48,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-12-18 16:12:48,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:48,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-12-18 16:12:48,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:48,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-12-18 16:12:48,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:48,210 INFO L134 CoverageAnalysis]: Checked inductivity of 377 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 377 trivial. 0 not checked. [2021-12-18 16:12:48,211 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 16:12:48,211 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1511714672] [2021-12-18 16:12:48,211 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1511714672] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 16:12:48,211 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 16:12:48,211 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-18 16:12:48,211 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [326520130] [2021-12-18 16:12:48,212 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 16:12:48,212 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-18 16:12:48,213 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 16:12:48,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-18 16:12:48,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-18 16:12:48,213 INFO L87 Difference]: Start difference. First operand 1555 states and 1997 transitions. Second operand has 9 states, 9 states have (on average 5.555555555555555) internal successors, (50), 5 states have internal predecessors, (50), 2 states have call successors, (18), 5 states have call predecessors, (18), 2 states have return successors, (15), 3 states have call predecessors, (15), 2 states have call successors, (15) [2021-12-18 16:12:51,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 16:12:51,986 INFO L93 Difference]: Finished difference Result 3018 states and 3896 transitions. [2021-12-18 16:12:51,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-12-18 16:12:51,986 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.555555555555555) internal successors, (50), 5 states have internal predecessors, (50), 2 states have call successors, (18), 5 states have call predecessors, (18), 2 states have return successors, (15), 3 states have call predecessors, (15), 2 states have call successors, (15) Word has length 166 [2021-12-18 16:12:51,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 16:12:51,993 INFO L225 Difference]: With dead ends: 3018 [2021-12-18 16:12:51,993 INFO L226 Difference]: Without dead ends: 1569 [2021-12-18 16:12:51,997 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=72, Invalid=168, Unknown=0, NotChecked=0, Total=240 [2021-12-18 16:12:51,998 INFO L933 BasicCegarLoop]: 1578 mSDtfsCounter, 2551 mSDsluCounter, 4048 mSDsCounter, 0 mSdLazyCounter, 3638 mSolverCounterSat, 1767 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2784 SdHoareTripleChecker+Valid, 5626 SdHoareTripleChecker+Invalid, 5405 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1767 IncrementalHoareTripleChecker+Valid, 3638 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2021-12-18 16:12:51,998 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2784 Valid, 5626 Invalid, 5405 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1767 Valid, 3638 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2021-12-18 16:12:52,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1569 states. [2021-12-18 16:12:52,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1569 to 1555. [2021-12-18 16:12:52,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1555 states, 973 states have (on average 1.1767728674203495) internal successors, (1145), 1013 states have internal predecessors, (1145), 426 states have call successors, (426), 139 states have call predecessors, (426), 138 states have return successors, (424), 420 states have call predecessors, (424), 424 states have call successors, (424) [2021-12-18 16:12:52,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1555 states to 1555 states and 1995 transitions. [2021-12-18 16:12:52,061 INFO L78 Accepts]: Start accepts. Automaton has 1555 states and 1995 transitions. Word has length 166 [2021-12-18 16:12:52,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 16:12:52,063 INFO L470 AbstractCegarLoop]: Abstraction has 1555 states and 1995 transitions. [2021-12-18 16:12:52,063 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.555555555555555) internal successors, (50), 5 states have internal predecessors, (50), 2 states have call successors, (18), 5 states have call predecessors, (18), 2 states have return successors, (15), 3 states have call predecessors, (15), 2 states have call successors, (15) [2021-12-18 16:12:52,063 INFO L276 IsEmpty]: Start isEmpty. Operand 1555 states and 1995 transitions. [2021-12-18 16:12:52,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2021-12-18 16:12:52,065 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 16:12:52,065 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 16:12:52,065 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-12-18 16:12:52,065 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_linux_alloc_irq_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2021-12-18 16:12:52,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 16:12:52,065 INFO L85 PathProgramCache]: Analyzing trace with hash 762900390, now seen corresponding path program 1 times [2021-12-18 16:12:52,066 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 16:12:52,066 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1790820672] [2021-12-18 16:12:52,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 16:12:52,066 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 16:12:52,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:52,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 16:12:52,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:52,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-18 16:12:52,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:52,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-12-18 16:12:52,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:52,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-18 16:12:52,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:52,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-12-18 16:12:52,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:52,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:12:52,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:52,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:12:52,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:52,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 16:12:52,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:52,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-18 16:12:52,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:52,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:12:52,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:52,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:12:52,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:52,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 16:12:52,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:52,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-12-18 16:12:52,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:52,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:12:52,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:52,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:12:52,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:52,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 16:12:52,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:52,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-12-18 16:12:52,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:52,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:12:52,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:52,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:12:52,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:52,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 16:12:52,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:52,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-12-18 16:12:52,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:52,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:12:52,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:52,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:12:52,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:52,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 16:12:52,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:52,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-12-18 16:12:52,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:52,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-12-18 16:12:52,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:52,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-12-18 16:12:52,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:52,317 INFO L134 CoverageAnalysis]: Checked inductivity of 377 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 377 trivial. 0 not checked. [2021-12-18 16:12:52,317 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 16:12:52,317 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1790820672] [2021-12-18 16:12:52,317 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1790820672] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 16:12:52,317 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 16:12:52,317 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-18 16:12:52,317 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1146929873] [2021-12-18 16:12:52,317 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 16:12:52,318 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-18 16:12:52,318 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 16:12:52,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-18 16:12:52,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-18 16:12:52,318 INFO L87 Difference]: Start difference. First operand 1555 states and 1995 transitions. Second operand has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 4 states have internal predecessors, (50), 1 states have call successors, (18), 4 states have call predecessors, (18), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2021-12-18 16:12:55,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 16:12:55,392 INFO L93 Difference]: Finished difference Result 1569 states and 2019 transitions. [2021-12-18 16:12:55,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-18 16:12:55,393 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 4 states have internal predecessors, (50), 1 states have call successors, (18), 4 states have call predecessors, (18), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 166 [2021-12-18 16:12:55,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 16:12:55,403 INFO L225 Difference]: With dead ends: 1569 [2021-12-18 16:12:55,404 INFO L226 Difference]: Without dead ends: 1567 [2021-12-18 16:12:55,404 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2021-12-18 16:12:55,405 INFO L933 BasicCegarLoop]: 1577 mSDtfsCounter, 1364 mSDsluCounter, 3586 mSDsCounter, 0 mSdLazyCounter, 2371 mSolverCounterSat, 1482 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1364 SdHoareTripleChecker+Valid, 5163 SdHoareTripleChecker+Invalid, 3853 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1482 IncrementalHoareTripleChecker+Valid, 2371 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2021-12-18 16:12:55,405 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1364 Valid, 5163 Invalid, 3853 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1482 Valid, 2371 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2021-12-18 16:12:55,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1567 states. [2021-12-18 16:12:55,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1567 to 1553. [2021-12-18 16:12:55,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1553 states, 972 states have (on average 1.1748971193415638) internal successors, (1142), 1011 states have internal predecessors, (1142), 426 states have call successors, (426), 139 states have call predecessors, (426), 138 states have return successors, (424), 420 states have call predecessors, (424), 424 states have call successors, (424) [2021-12-18 16:12:55,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1553 states to 1553 states and 1992 transitions. [2021-12-18 16:12:55,461 INFO L78 Accepts]: Start accepts. Automaton has 1553 states and 1992 transitions. Word has length 166 [2021-12-18 16:12:55,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 16:12:55,462 INFO L470 AbstractCegarLoop]: Abstraction has 1553 states and 1992 transitions. [2021-12-18 16:12:55,462 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 4 states have internal predecessors, (50), 1 states have call successors, (18), 4 states have call predecessors, (18), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2021-12-18 16:12:55,462 INFO L276 IsEmpty]: Start isEmpty. Operand 1553 states and 1992 transitions. [2021-12-18 16:12:55,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2021-12-18 16:12:55,463 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 16:12:55,463 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 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] [2021-12-18 16:12:55,464 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-12-18 16:12:55,464 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_linux_kernel_rcu_update_lock_bh_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2021-12-18 16:12:55,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 16:12:55,464 INFO L85 PathProgramCache]: Analyzing trace with hash -318780407, now seen corresponding path program 1 times [2021-12-18 16:12:55,464 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 16:12:55,464 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [215830494] [2021-12-18 16:12:55,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 16:12:55,465 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 16:12:55,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:55,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 16:12:55,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:55,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-18 16:12:55,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:55,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-12-18 16:12:55,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:55,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-18 16:12:55,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:55,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-18 16:12:55,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:55,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-18 16:12:55,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:55,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-12-18 16:12:55,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:55,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:12:55,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:55,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-12-18 16:12:55,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:55,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-18 16:12:55,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:55,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-18 16:12:55,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:55,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-18 16:12:55,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:55,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-12-18 16:12:55,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:55,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-18 16:12:55,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:55,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-18 16:12:55,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:55,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-12-18 16:12:55,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:55,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-12-18 16:12:55,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:55,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-12-18 16:12:55,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:55,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-12-18 16:12:55,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:55,661 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-12-18 16:12:55,661 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 16:12:55,662 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [215830494] [2021-12-18 16:12:55,662 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [215830494] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 16:12:55,662 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 16:12:55,662 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-18 16:12:55,662 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [726016867] [2021-12-18 16:12:55,662 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 16:12:55,663 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 16:12:55,663 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 16:12:55,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 16:12:55,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-18 16:12:55,664 INFO L87 Difference]: Start difference. First operand 1553 states and 1992 transitions. Second operand has 6 states, 6 states have (on average 12.5) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (20), 4 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-12-18 16:12:57,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 16:12:57,750 INFO L93 Difference]: Finished difference Result 1553 states and 1992 transitions. [2021-12-18 16:12:57,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-18 16:12:57,750 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.5) internal successors, (75), 4 states have internal predecessors, (75), 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 127 [2021-12-18 16:12:57,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 16:12:57,756 INFO L225 Difference]: With dead ends: 1553 [2021-12-18 16:12:57,756 INFO L226 Difference]: Without dead ends: 1551 [2021-12-18 16:12:57,757 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2021-12-18 16:12:57,757 INFO L933 BasicCegarLoop]: 1582 mSDtfsCounter, 2179 mSDsluCounter, 2013 mSDsCounter, 0 mSdLazyCounter, 1253 mSolverCounterSat, 1288 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2405 SdHoareTripleChecker+Valid, 3595 SdHoareTripleChecker+Invalid, 2541 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1288 IncrementalHoareTripleChecker+Valid, 1253 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2021-12-18 16:12:57,757 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2405 Valid, 3595 Invalid, 2541 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1288 Valid, 1253 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2021-12-18 16:12:57,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1551 states. [2021-12-18 16:12:57,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1551 to 1551. [2021-12-18 16:12:57,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1551 states, 971 states have (on average 1.1740473738414006) internal successors, (1140), 1009 states have internal predecessors, (1140), 426 states have call successors, (426), 139 states have call predecessors, (426), 138 states have return successors, (424), 420 states have call predecessors, (424), 424 states have call successors, (424) [2021-12-18 16:12:57,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1551 states to 1551 states and 1990 transitions. [2021-12-18 16:12:57,815 INFO L78 Accepts]: Start accepts. Automaton has 1551 states and 1990 transitions. Word has length 127 [2021-12-18 16:12:57,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 16:12:57,815 INFO L470 AbstractCegarLoop]: Abstraction has 1551 states and 1990 transitions. [2021-12-18 16:12:57,815 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.5) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (20), 4 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-12-18 16:12:57,815 INFO L276 IsEmpty]: Start isEmpty. Operand 1551 states and 1990 transitions. [2021-12-18 16:12:57,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2021-12-18 16:12:57,817 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 16:12:57,817 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 16:12:57,817 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-12-18 16:12:57,817 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2021-12-18 16:12:57,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 16:12:57,818 INFO L85 PathProgramCache]: Analyzing trace with hash -1563561762, now seen corresponding path program 1 times [2021-12-18 16:12:57,818 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 16:12:57,818 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1192159319] [2021-12-18 16:12:57,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 16:12:57,818 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 16:12:57,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:57,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 16:12:57,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:57,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-18 16:12:57,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:57,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-12-18 16:12:57,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:57,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-18 16:12:57,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:57,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-12-18 16:12:57,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:57,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:12:57,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:57,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:12:57,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:57,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 16:12:57,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:57,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-18 16:12:57,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:57,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:12:57,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:57,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:12:57,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:57,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 16:12:57,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:57,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-12-18 16:12:57,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:57,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:12:57,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:57,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:12:57,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:57,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 16:12:57,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:57,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-12-18 16:12:57,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:57,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:12:57,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:57,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:12:57,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:57,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 16:12:57,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:57,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-12-18 16:12:57,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:57,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:12:57,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:58,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:12:58,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:58,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 16:12:58,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:58,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-12-18 16:12:58,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:58,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-12-18 16:12:58,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:58,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2021-12-18 16:12:58,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:58,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:12:58,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:12:58,065 INFO L134 CoverageAnalysis]: Checked inductivity of 377 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 377 trivial. 0 not checked. [2021-12-18 16:12:58,065 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 16:12:58,065 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1192159319] [2021-12-18 16:12:58,065 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1192159319] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 16:12:58,065 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 16:12:58,065 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-18 16:12:58,065 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [446904090] [2021-12-18 16:12:58,066 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 16:12:58,066 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 16:12:58,067 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 16:12:58,067 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 16:12:58,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-18 16:12:58,067 INFO L87 Difference]: Start difference. First operand 1551 states and 1990 transitions. Second operand has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 3 states have internal predecessors, (55), 2 states have call successors, (19), 5 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-12-18 16:13:00,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 16:13:00,629 INFO L93 Difference]: Finished difference Result 3004 states and 3875 transitions. [2021-12-18 16:13:00,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-18 16:13:00,629 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 3 states have internal predecessors, (55), 2 states have call successors, (19), 5 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 173 [2021-12-18 16:13:00,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 16:13:00,640 INFO L225 Difference]: With dead ends: 3004 [2021-12-18 16:13:00,640 INFO L226 Difference]: Without dead ends: 1559 [2021-12-18 16:13:00,644 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2021-12-18 16:13:00,644 INFO L933 BasicCegarLoop]: 1571 mSDtfsCounter, 2512 mSDsluCounter, 1412 mSDsCounter, 0 mSdLazyCounter, 1101 mSolverCounterSat, 1768 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2745 SdHoareTripleChecker+Valid, 2983 SdHoareTripleChecker+Invalid, 2869 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1768 IncrementalHoareTripleChecker+Valid, 1101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2021-12-18 16:13:00,644 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2745 Valid, 2983 Invalid, 2869 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1768 Valid, 1101 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2021-12-18 16:13:00,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1559 states. [2021-12-18 16:13:00,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1559 to 1545. [2021-12-18 16:13:00,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1545 states, 966 states have (on average 1.170807453416149) internal successors, (1131), 1003 states have internal predecessors, (1131), 426 states have call successors, (426), 139 states have call predecessors, (426), 138 states have return successors, (424), 420 states have call predecessors, (424), 424 states have call successors, (424) [2021-12-18 16:13:00,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1545 states to 1545 states and 1981 transitions. [2021-12-18 16:13:00,711 INFO L78 Accepts]: Start accepts. Automaton has 1545 states and 1981 transitions. Word has length 173 [2021-12-18 16:13:00,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 16:13:00,711 INFO L470 AbstractCegarLoop]: Abstraction has 1545 states and 1981 transitions. [2021-12-18 16:13:00,712 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 3 states have internal predecessors, (55), 2 states have call successors, (19), 5 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-12-18 16:13:00,712 INFO L276 IsEmpty]: Start isEmpty. Operand 1545 states and 1981 transitions. [2021-12-18 16:13:00,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2021-12-18 16:13:00,713 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 16:13:00,713 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2021-12-18 16:13:00,713 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-12-18 16:13:00,713 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2021-12-18 16:13:00,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 16:13:00,714 INFO L85 PathProgramCache]: Analyzing trace with hash 810533866, now seen corresponding path program 1 times [2021-12-18 16:13:00,714 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 16:13:00,714 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [175179871] [2021-12-18 16:13:00,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 16:13:00,714 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 16:13:00,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:00,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 16:13:00,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:00,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-18 16:13:00,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:00,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-12-18 16:13:00,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:00,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-18 16:13:00,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:00,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-18 16:13:00,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:00,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-18 16:13:00,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:00,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-12-18 16:13:00,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:00,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:13:00,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:00,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-12-18 16:13:00,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:00,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-18 16:13:00,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:00,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-18 16:13:00,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:00,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-12-18 16:13:00,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:00,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:13:00,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:00,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:13:00,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:00,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 16:13:00,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:00,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-12-18 16:13:00,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:00,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:13:00,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:00,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:13:00,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:00,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 16:13:00,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:00,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-18 16:13:00,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:00,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:13:00,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:00,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:13:00,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:00,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 16:13:00,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:00,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-18 16:13:00,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:00,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-12-18 16:13:00,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:00,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-12-18 16:13:00,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:00,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:13:00,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:00,922 INFO L134 CoverageAnalysis]: Checked inductivity of 258 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 258 trivial. 0 not checked. [2021-12-18 16:13:00,922 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 16:13:00,922 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [175179871] [2021-12-18 16:13:00,922 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [175179871] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 16:13:00,922 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 16:13:00,922 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-18 16:13:00,922 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1967585640] [2021-12-18 16:13:00,923 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 16:13:00,923 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-18 16:13:00,923 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 16:13:00,924 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-18 16:13:00,924 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-18 16:13:00,924 INFO L87 Difference]: Start difference. First operand 1545 states and 1981 transitions. Second operand has 9 states, 9 states have (on average 6.555555555555555) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (23), 7 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-12-18 16:13:04,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 16:13:04,681 INFO L93 Difference]: Finished difference Result 1587 states and 2029 transitions. [2021-12-18 16:13:04,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-18 16:13:04,681 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.555555555555555) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (23), 7 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 164 [2021-12-18 16:13:04,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 16:13:04,687 INFO L225 Difference]: With dead ends: 1587 [2021-12-18 16:13:04,687 INFO L226 Difference]: Without dead ends: 1585 [2021-12-18 16:13:04,688 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 55 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=137, Invalid=283, Unknown=0, NotChecked=0, Total=420 [2021-12-18 16:13:04,688 INFO L933 BasicCegarLoop]: 1574 mSDtfsCounter, 2988 mSDsluCounter, 4065 mSDsCounter, 0 mSdLazyCounter, 2693 mSolverCounterSat, 2265 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3208 SdHoareTripleChecker+Valid, 5639 SdHoareTripleChecker+Invalid, 4958 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2265 IncrementalHoareTripleChecker+Valid, 2693 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2021-12-18 16:13:04,688 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3208 Valid, 5639 Invalid, 4958 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2265 Valid, 2693 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2021-12-18 16:13:04,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1585 states. [2021-12-18 16:13:04,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1585 to 1569. [2021-12-18 16:13:04,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1569 states, 984 states have (on average 1.1697154471544715) internal successors, (1151), 1021 states have internal predecessors, (1151), 426 states have call successors, (426), 145 states have call predecessors, (426), 144 states have return successors, (424), 420 states have call predecessors, (424), 424 states have call successors, (424) [2021-12-18 16:13:04,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1569 states to 1569 states and 2001 transitions. [2021-12-18 16:13:04,748 INFO L78 Accepts]: Start accepts. Automaton has 1569 states and 2001 transitions. Word has length 164 [2021-12-18 16:13:04,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 16:13:04,749 INFO L470 AbstractCegarLoop]: Abstraction has 1569 states and 2001 transitions. [2021-12-18 16:13:04,749 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.555555555555555) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (23), 7 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-12-18 16:13:04,749 INFO L276 IsEmpty]: Start isEmpty. Operand 1569 states and 2001 transitions. [2021-12-18 16:13:04,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2021-12-18 16:13:04,750 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 16:13:04,750 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 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] [2021-12-18 16:13:04,750 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-12-18 16:13:04,750 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_linux_kernel_rcu_update_lock_sched_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2021-12-18 16:13:04,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 16:13:04,751 INFO L85 PathProgramCache]: Analyzing trace with hash -1959974059, now seen corresponding path program 1 times [2021-12-18 16:13:04,751 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 16:13:04,751 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1566729468] [2021-12-18 16:13:04,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 16:13:04,751 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 16:13:04,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:04,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 16:13:04,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:04,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-18 16:13:04,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:04,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-12-18 16:13:04,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:04,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-18 16:13:04,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:04,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-18 16:13:04,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:04,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-18 16:13:04,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:04,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-12-18 16:13:04,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:04,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:13:04,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:04,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-12-18 16:13:04,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:04,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-18 16:13:04,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:04,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-18 16:13:04,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:04,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-18 16:13:04,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:04,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-12-18 16:13:04,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:04,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-18 16:13:04,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:04,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-18 16:13:04,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:04,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-12-18 16:13:04,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:04,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-12-18 16:13:04,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:04,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-12-18 16:13:04,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:04,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-12-18 16:13:04,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:04,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2021-12-18 16:13:04,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:04,922 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-12-18 16:13:04,922 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 16:13:04,922 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1566729468] [2021-12-18 16:13:04,923 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1566729468] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 16:13:04,923 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 16:13:04,923 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-18 16:13:04,923 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1119497520] [2021-12-18 16:13:04,923 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 16:13:04,924 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 16:13:04,924 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 16:13:04,924 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 16:13:04,924 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-18 16:13:04,925 INFO L87 Difference]: Start difference. First operand 1569 states and 2001 transitions. Second operand has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 4 states have internal predecessors, (79), 2 states have call successors, (21), 4 states have call predecessors, (21), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-12-18 16:13:06,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 16:13:06,920 INFO L93 Difference]: Finished difference Result 1569 states and 2001 transitions. [2021-12-18 16:13:06,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-18 16:13:06,921 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 4 states have internal predecessors, (79), 2 states have call successors, (21), 4 states have call predecessors, (21), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 133 [2021-12-18 16:13:06,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 16:13:06,926 INFO L225 Difference]: With dead ends: 1569 [2021-12-18 16:13:06,927 INFO L226 Difference]: Without dead ends: 1567 [2021-12-18 16:13:06,927 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2021-12-18 16:13:06,928 INFO L933 BasicCegarLoop]: 1575 mSDtfsCounter, 2158 mSDsluCounter, 2013 mSDsCounter, 0 mSdLazyCounter, 1246 mSolverCounterSat, 1288 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2383 SdHoareTripleChecker+Valid, 3588 SdHoareTripleChecker+Invalid, 2534 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1288 IncrementalHoareTripleChecker+Valid, 1246 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2021-12-18 16:13:06,928 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2383 Valid, 3588 Invalid, 2534 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1288 Valid, 1246 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2021-12-18 16:13:06,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1567 states. [2021-12-18 16:13:06,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1567 to 1567. [2021-12-18 16:13:06,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1567 states, 983 states have (on average 1.1688708036622584) internal successors, (1149), 1019 states have internal predecessors, (1149), 426 states have call successors, (426), 145 states have call predecessors, (426), 144 states have return successors, (424), 420 states have call predecessors, (424), 424 states have call successors, (424) [2021-12-18 16:13:06,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1567 states to 1567 states and 1999 transitions. [2021-12-18 16:13:06,988 INFO L78 Accepts]: Start accepts. Automaton has 1567 states and 1999 transitions. Word has length 133 [2021-12-18 16:13:06,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 16:13:06,989 INFO L470 AbstractCegarLoop]: Abstraction has 1567 states and 1999 transitions. [2021-12-18 16:13:06,989 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 4 states have internal predecessors, (79), 2 states have call successors, (21), 4 states have call predecessors, (21), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-12-18 16:13:06,989 INFO L276 IsEmpty]: Start isEmpty. Operand 1567 states and 1999 transitions. [2021-12-18 16:13:06,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2021-12-18 16:13:06,990 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 16:13:06,990 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 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] [2021-12-18 16:13:06,990 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-12-18 16:13:06,991 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2021-12-18 16:13:06,991 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 16:13:06,991 INFO L85 PathProgramCache]: Analyzing trace with hash 2053208171, now seen corresponding path program 1 times [2021-12-18 16:13:06,991 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 16:13:06,992 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2120077301] [2021-12-18 16:13:06,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 16:13:06,992 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 16:13:07,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:07,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 16:13:07,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:07,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-18 16:13:07,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:07,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-12-18 16:13:07,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:07,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-18 16:13:07,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:07,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-18 16:13:07,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:07,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-18 16:13:07,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:07,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-12-18 16:13:07,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:07,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:13:07,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:07,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-12-18 16:13:07,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:07,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-18 16:13:07,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:07,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-18 16:13:07,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:07,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-18 16:13:07,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:07,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-12-18 16:13:07,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:07,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-18 16:13:07,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:07,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-18 16:13:07,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:07,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-12-18 16:13:07,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:07,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-12-18 16:13:07,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:07,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-12-18 16:13:07,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:07,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-12-18 16:13:07,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:07,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2021-12-18 16:13:07,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:07,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-12-18 16:13:07,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:07,149 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-12-18 16:13:07,149 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 16:13:07,150 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2120077301] [2021-12-18 16:13:07,150 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2120077301] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 16:13:07,150 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 16:13:07,150 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-18 16:13:07,150 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [217945609] [2021-12-18 16:13:07,150 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 16:13:07,150 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 16:13:07,151 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 16:13:07,151 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 16:13:07,151 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-18 16:13:07,151 INFO L87 Difference]: Start difference. First operand 1567 states and 1999 transitions. Second operand has 6 states, 6 states have (on average 13.833333333333334) internal successors, (83), 4 states have internal predecessors, (83), 2 states have call successors, (22), 4 states have call predecessors, (22), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-12-18 16:13:09,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 16:13:09,167 INFO L93 Difference]: Finished difference Result 1567 states and 1999 transitions. [2021-12-18 16:13:09,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-18 16:13:09,167 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.833333333333334) internal successors, (83), 4 states have internal predecessors, (83), 2 states have call successors, (22), 4 states have call predecessors, (22), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 139 [2021-12-18 16:13:09,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 16:13:09,173 INFO L225 Difference]: With dead ends: 1567 [2021-12-18 16:13:09,173 INFO L226 Difference]: Without dead ends: 1565 [2021-12-18 16:13:09,174 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2021-12-18 16:13:09,174 INFO L933 BasicCegarLoop]: 1573 mSDtfsCounter, 2152 mSDsluCounter, 2013 mSDsCounter, 0 mSdLazyCounter, 1244 mSolverCounterSat, 1288 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2376 SdHoareTripleChecker+Valid, 3586 SdHoareTripleChecker+Invalid, 2532 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1288 IncrementalHoareTripleChecker+Valid, 1244 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2021-12-18 16:13:09,174 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2376 Valid, 3586 Invalid, 2532 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1288 Valid, 1244 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2021-12-18 16:13:09,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1565 states. [2021-12-18 16:13:09,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1565 to 1565. [2021-12-18 16:13:09,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1565 states, 982 states have (on average 1.1680244399185336) internal successors, (1147), 1017 states have internal predecessors, (1147), 426 states have call successors, (426), 145 states have call predecessors, (426), 144 states have return successors, (424), 420 states have call predecessors, (424), 424 states have call successors, (424) [2021-12-18 16:13:09,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1565 states to 1565 states and 1997 transitions. [2021-12-18 16:13:09,235 INFO L78 Accepts]: Start accepts. Automaton has 1565 states and 1997 transitions. Word has length 139 [2021-12-18 16:13:09,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 16:13:09,236 INFO L470 AbstractCegarLoop]: Abstraction has 1565 states and 1997 transitions. [2021-12-18 16:13:09,236 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.833333333333334) internal successors, (83), 4 states have internal predecessors, (83), 2 states have call successors, (22), 4 states have call predecessors, (22), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-12-18 16:13:09,236 INFO L276 IsEmpty]: Start isEmpty. Operand 1565 states and 1997 transitions. [2021-12-18 16:13:09,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2021-12-18 16:13:09,237 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 16:13:09,238 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 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, 1, 1, 1] [2021-12-18 16:13:09,238 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-12-18 16:13:09,238 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ldv_linux_kernel_rcu_srcu_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2021-12-18 16:13:09,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 16:13:09,238 INFO L85 PathProgramCache]: Analyzing trace with hash -1485080845, now seen corresponding path program 1 times [2021-12-18 16:13:09,238 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 16:13:09,238 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [277702977] [2021-12-18 16:13:09,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 16:13:09,239 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 16:13:09,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:09,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 16:13:09,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:09,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-18 16:13:09,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:09,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-12-18 16:13:09,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:09,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-18 16:13:09,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:09,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-18 16:13:09,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:09,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-18 16:13:09,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:09,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-12-18 16:13:09,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:09,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:13:09,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:09,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-12-18 16:13:09,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:09,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-18 16:13:09,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:09,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-18 16:13:09,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:09,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-18 16:13:09,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:09,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-12-18 16:13:09,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:09,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-18 16:13:09,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:09,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-18 16:13:09,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:09,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-12-18 16:13:09,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:09,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-12-18 16:13:09,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:09,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-12-18 16:13:09,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:09,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-12-18 16:13:09,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:09,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2021-12-18 16:13:09,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:09,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-12-18 16:13:09,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:09,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-18 16:13:09,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:09,399 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-12-18 16:13:09,400 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 16:13:09,400 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [277702977] [2021-12-18 16:13:09,400 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [277702977] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 16:13:09,400 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 16:13:09,400 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-18 16:13:09,400 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1419642861] [2021-12-18 16:13:09,400 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 16:13:09,402 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 16:13:09,402 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 16:13:09,402 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 16:13:09,402 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-18 16:13:09,402 INFO L87 Difference]: Start difference. First operand 1565 states and 1997 transitions. Second operand has 6 states, 6 states have (on average 14.5) internal successors, (87), 4 states have internal predecessors, (87), 2 states have call successors, (23), 4 states have call predecessors, (23), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2021-12-18 16:13:11,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 16:13:11,528 INFO L93 Difference]: Finished difference Result 1565 states and 1997 transitions. [2021-12-18 16:13:11,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-18 16:13:11,528 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.5) internal successors, (87), 4 states have internal predecessors, (87), 2 states have call successors, (23), 4 states have call predecessors, (23), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 145 [2021-12-18 16:13:11,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 16:13:11,533 INFO L225 Difference]: With dead ends: 1565 [2021-12-18 16:13:11,534 INFO L226 Difference]: Without dead ends: 1563 [2021-12-18 16:13:11,534 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2021-12-18 16:13:11,538 INFO L933 BasicCegarLoop]: 1571 mSDtfsCounter, 2146 mSDsluCounter, 2013 mSDsCounter, 0 mSdLazyCounter, 1242 mSolverCounterSat, 1288 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2369 SdHoareTripleChecker+Valid, 3584 SdHoareTripleChecker+Invalid, 2530 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1288 IncrementalHoareTripleChecker+Valid, 1242 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2021-12-18 16:13:11,538 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2369 Valid, 3584 Invalid, 2530 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1288 Valid, 1242 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2021-12-18 16:13:11,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1563 states. [2021-12-18 16:13:11,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1563 to 1563. [2021-12-18 16:13:11,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1563 states, 981 states have (on average 1.1671763506625892) internal successors, (1145), 1015 states have internal predecessors, (1145), 426 states have call successors, (426), 145 states have call predecessors, (426), 144 states have return successors, (424), 420 states have call predecessors, (424), 424 states have call successors, (424) [2021-12-18 16:13:11,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1563 states to 1563 states and 1995 transitions. [2021-12-18 16:13:11,601 INFO L78 Accepts]: Start accepts. Automaton has 1563 states and 1995 transitions. Word has length 145 [2021-12-18 16:13:11,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 16:13:11,602 INFO L470 AbstractCegarLoop]: Abstraction has 1563 states and 1995 transitions. [2021-12-18 16:13:11,602 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.5) internal successors, (87), 4 states have internal predecessors, (87), 2 states have call successors, (23), 4 states have call predecessors, (23), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2021-12-18 16:13:11,602 INFO L276 IsEmpty]: Start isEmpty. Operand 1563 states and 1995 transitions. [2021-12-18 16:13:11,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2021-12-18 16:13:11,623 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 16:13:11,624 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 16:13:11,624 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-12-18 16:13:11,624 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ldv_linux_lib_idr_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2021-12-18 16:13:11,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 16:13:11,624 INFO L85 PathProgramCache]: Analyzing trace with hash -2138778281, now seen corresponding path program 1 times [2021-12-18 16:13:11,624 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 16:13:11,624 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1177671891] [2021-12-18 16:13:11,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 16:13:11,625 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 16:13:11,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:11,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 16:13:11,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:11,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-18 16:13:11,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:11,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-12-18 16:13:11,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:11,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-18 16:13:11,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:11,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-18 16:13:11,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:11,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-18 16:13:11,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:11,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-12-18 16:13:11,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:11,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:13:11,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:11,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-12-18 16:13:11,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:11,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-18 16:13:11,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:11,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-18 16:13:11,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:11,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-18 16:13:11,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:11,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-12-18 16:13:11,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:11,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-18 16:13:11,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:11,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-18 16:13:11,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:11,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-12-18 16:13:11,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:11,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-12-18 16:13:11,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:11,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-12-18 16:13:11,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:11,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-12-18 16:13:11,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:11,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2021-12-18 16:13:11,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:11,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-12-18 16:13:11,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:11,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-18 16:13:11,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:11,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-12-18 16:13:11,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:11,782 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-12-18 16:13:11,782 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 16:13:11,782 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1177671891] [2021-12-18 16:13:11,782 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1177671891] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 16:13:11,782 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 16:13:11,782 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-18 16:13:11,782 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1498992424] [2021-12-18 16:13:11,783 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 16:13:11,783 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 16:13:11,783 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 16:13:11,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 16:13:11,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-18 16:13:11,784 INFO L87 Difference]: Start difference. First operand 1563 states and 1995 transitions. Second operand has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (24), 4 states have call predecessors, (24), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2021-12-18 16:13:14,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 16:13:14,125 INFO L93 Difference]: Finished difference Result 1563 states and 1995 transitions. [2021-12-18 16:13:14,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-18 16:13:14,126 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (24), 4 states have call predecessors, (24), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 151 [2021-12-18 16:13:14,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 16:13:14,131 INFO L225 Difference]: With dead ends: 1563 [2021-12-18 16:13:14,132 INFO L226 Difference]: Without dead ends: 1561 [2021-12-18 16:13:14,132 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2021-12-18 16:13:14,133 INFO L933 BasicCegarLoop]: 1569 mSDtfsCounter, 2140 mSDsluCounter, 2013 mSDsCounter, 0 mSdLazyCounter, 1240 mSolverCounterSat, 1288 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2362 SdHoareTripleChecker+Valid, 3582 SdHoareTripleChecker+Invalid, 2528 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1288 IncrementalHoareTripleChecker+Valid, 1240 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2021-12-18 16:13:14,133 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2362 Valid, 3582 Invalid, 2528 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1288 Valid, 1240 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2021-12-18 16:13:14,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1561 states. [2021-12-18 16:13:14,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1561 to 1561. [2021-12-18 16:13:14,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1561 states, 980 states have (on average 1.166326530612245) internal successors, (1143), 1013 states have internal predecessors, (1143), 426 states have call successors, (426), 145 states have call predecessors, (426), 144 states have return successors, (424), 420 states have call predecessors, (424), 424 states have call successors, (424) [2021-12-18 16:13:14,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1561 states to 1561 states and 1993 transitions. [2021-12-18 16:13:14,199 INFO L78 Accepts]: Start accepts. Automaton has 1561 states and 1993 transitions. Word has length 151 [2021-12-18 16:13:14,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 16:13:14,200 INFO L470 AbstractCegarLoop]: Abstraction has 1561 states and 1993 transitions. [2021-12-18 16:13:14,200 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (24), 4 states have call predecessors, (24), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2021-12-18 16:13:14,200 INFO L276 IsEmpty]: Start isEmpty. Operand 1561 states and 1993 transitions. [2021-12-18 16:13:14,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2021-12-18 16:13:14,202 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 16:13:14,202 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 11, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2021-12-18 16:13:14,202 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-12-18 16:13:14,202 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2021-12-18 16:13:14,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 16:13:14,203 INFO L85 PathProgramCache]: Analyzing trace with hash 436294476, now seen corresponding path program 1 times [2021-12-18 16:13:14,203 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 16:13:14,203 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [81455359] [2021-12-18 16:13:14,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 16:13:14,203 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 16:13:14,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:14,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 16:13:14,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:14,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-18 16:13:14,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:14,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-12-18 16:13:14,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:14,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-18 16:13:14,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:14,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-18 16:13:14,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:14,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-18 16:13:14,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:14,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-12-18 16:13:14,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:14,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:13:14,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:14,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-12-18 16:13:14,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:14,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-18 16:13:14,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:14,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-18 16:13:14,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:14,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-12-18 16:13:14,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:14,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:13:14,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:14,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:13:14,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:14,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 16:13:14,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:14,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-12-18 16:13:14,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:14,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:13:14,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:14,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:13:14,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:14,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 16:13:14,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:14,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-18 16:13:14,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:14,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:13:14,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:14,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:13:14,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:14,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 16:13:14,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:14,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-18 16:13:14,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:14,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-12-18 16:13:14,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:14,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-12-18 16:13:14,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:14,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:13:14,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:14,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2021-12-18 16:13:14,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:14,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:13:14,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:14,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:13:14,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:14,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-18 16:13:14,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:14,405 INFO L134 CoverageAnalysis]: Checked inductivity of 298 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 298 trivial. 0 not checked. [2021-12-18 16:13:14,405 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 16:13:14,405 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [81455359] [2021-12-18 16:13:14,405 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [81455359] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 16:13:14,405 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 16:13:14,406 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-12-18 16:13:14,406 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1525880771] [2021-12-18 16:13:14,406 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 16:13:14,406 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-12-18 16:13:14,407 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 16:13:14,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-12-18 16:13:14,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-12-18 16:13:14,407 INFO L87 Difference]: Start difference. First operand 1561 states and 1993 transitions. Second operand has 10 states, 10 states have (on average 7.1) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (27), 8 states have call predecessors, (27), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2021-12-18 16:13:19,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 16:13:19,587 INFO L93 Difference]: Finished difference Result 1581 states and 2023 transitions. [2021-12-18 16:13:19,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-12-18 16:13:19,587 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.1) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (27), 8 states have call predecessors, (27), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 187 [2021-12-18 16:13:19,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 16:13:19,592 INFO L225 Difference]: With dead ends: 1581 [2021-12-18 16:13:19,593 INFO L226 Difference]: Without dead ends: 1579 [2021-12-18 16:13:19,594 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 64 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 110 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=183, Invalid=417, Unknown=0, NotChecked=0, Total=600 [2021-12-18 16:13:19,594 INFO L933 BasicCegarLoop]: 1565 mSDtfsCounter, 2266 mSDsluCounter, 5251 mSDsCounter, 0 mSdLazyCounter, 3897 mSolverCounterSat, 2518 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2266 SdHoareTripleChecker+Valid, 6816 SdHoareTripleChecker+Invalid, 6415 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2518 IncrementalHoareTripleChecker+Valid, 3897 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2021-12-18 16:13:19,594 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2266 Valid, 6816 Invalid, 6415 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2518 Valid, 3897 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time] [2021-12-18 16:13:19,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1579 states. [2021-12-18 16:13:19,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1579 to 1561. [2021-12-18 16:13:19,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1561 states, 980 states have (on average 1.1642857142857144) internal successors, (1141), 1013 states have internal predecessors, (1141), 426 states have call successors, (426), 145 states have call predecessors, (426), 144 states have return successors, (424), 420 states have call predecessors, (424), 424 states have call successors, (424) [2021-12-18 16:13:19,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1561 states to 1561 states and 1991 transitions. [2021-12-18 16:13:19,682 INFO L78 Accepts]: Start accepts. Automaton has 1561 states and 1991 transitions. Word has length 187 [2021-12-18 16:13:19,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 16:13:19,683 INFO L470 AbstractCegarLoop]: Abstraction has 1561 states and 1991 transitions. [2021-12-18 16:13:19,683 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.1) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (27), 8 states have call predecessors, (27), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2021-12-18 16:13:19,683 INFO L276 IsEmpty]: Start isEmpty. Operand 1561 states and 1991 transitions. [2021-12-18 16:13:19,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2021-12-18 16:13:19,684 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 16:13:19,685 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 16:13:19,685 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-12-18 16:13:19,685 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ldv_linux_mmc_sdio_func_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2021-12-18 16:13:19,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 16:13:19,685 INFO L85 PathProgramCache]: Analyzing trace with hash 223795412, now seen corresponding path program 1 times [2021-12-18 16:13:19,685 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 16:13:19,686 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2015805042] [2021-12-18 16:13:19,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 16:13:19,686 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 16:13:19,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:19,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 16:13:19,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:19,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-18 16:13:19,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:19,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-12-18 16:13:19,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:19,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-18 16:13:19,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:19,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-18 16:13:19,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:19,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-18 16:13:19,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:19,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-12-18 16:13:19,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:19,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:13:19,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:19,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-12-18 16:13:19,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:19,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-18 16:13:19,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:19,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-18 16:13:19,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:19,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-18 16:13:19,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:19,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-12-18 16:13:19,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:19,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-18 16:13:19,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:19,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-18 16:13:19,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:19,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-12-18 16:13:19,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:19,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-12-18 16:13:19,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:19,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-12-18 16:13:19,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:19,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-12-18 16:13:19,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:19,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2021-12-18 16:13:19,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:19,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-12-18 16:13:19,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:19,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-18 16:13:19,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:19,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-12-18 16:13:19,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:19,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-12-18 16:13:19,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:19,884 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-12-18 16:13:19,884 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 16:13:19,884 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2015805042] [2021-12-18 16:13:19,884 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2015805042] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 16:13:19,884 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 16:13:19,884 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-18 16:13:19,884 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1280037657] [2021-12-18 16:13:19,885 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 16:13:19,885 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 16:13:19,885 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 16:13:19,885 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 16:13:19,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-18 16:13:19,886 INFO L87 Difference]: Start difference. First operand 1561 states and 1991 transitions. Second operand has 6 states, 6 states have (on average 15.833333333333334) internal successors, (95), 4 states have internal predecessors, (95), 2 states have call successors, (25), 4 states have call predecessors, (25), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2021-12-18 16:13:22,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 16:13:22,167 INFO L93 Difference]: Finished difference Result 1561 states and 1991 transitions. [2021-12-18 16:13:22,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-18 16:13:22,167 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.833333333333334) internal successors, (95), 4 states have internal predecessors, (95), 2 states have call successors, (25), 4 states have call predecessors, (25), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 157 [2021-12-18 16:13:22,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 16:13:22,172 INFO L225 Difference]: With dead ends: 1561 [2021-12-18 16:13:22,172 INFO L226 Difference]: Without dead ends: 1559 [2021-12-18 16:13:22,172 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2021-12-18 16:13:22,173 INFO L933 BasicCegarLoop]: 1567 mSDtfsCounter, 2134 mSDsluCounter, 2013 mSDsCounter, 0 mSdLazyCounter, 1238 mSolverCounterSat, 1288 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2355 SdHoareTripleChecker+Valid, 3580 SdHoareTripleChecker+Invalid, 2526 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1288 IncrementalHoareTripleChecker+Valid, 1238 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2021-12-18 16:13:22,173 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2355 Valid, 3580 Invalid, 2526 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1288 Valid, 1238 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2021-12-18 16:13:22,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1559 states. [2021-12-18 16:13:22,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1559 to 1559. [2021-12-18 16:13:22,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1559 states, 979 states have (on average 1.163432073544433) internal successors, (1139), 1011 states have internal predecessors, (1139), 426 states have call successors, (426), 145 states have call predecessors, (426), 144 states have return successors, (424), 420 states have call predecessors, (424), 424 states have call successors, (424) [2021-12-18 16:13:22,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1559 states to 1559 states and 1989 transitions. [2021-12-18 16:13:22,262 INFO L78 Accepts]: Start accepts. Automaton has 1559 states and 1989 transitions. Word has length 157 [2021-12-18 16:13:22,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 16:13:22,262 INFO L470 AbstractCegarLoop]: Abstraction has 1559 states and 1989 transitions. [2021-12-18 16:13:22,262 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.833333333333334) internal successors, (95), 4 states have internal predecessors, (95), 2 states have call successors, (25), 4 states have call predecessors, (25), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2021-12-18 16:13:22,262 INFO L276 IsEmpty]: Start isEmpty. Operand 1559 states and 1989 transitions. [2021-12-18 16:13:22,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2021-12-18 16:13:22,264 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 16:13:22,264 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 16:13:22,264 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-12-18 16:13:22,264 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ldv_linux_net_rtnetlink_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2021-12-18 16:13:22,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 16:13:22,265 INFO L85 PathProgramCache]: Analyzing trace with hash -1886448964, now seen corresponding path program 1 times [2021-12-18 16:13:22,265 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 16:13:22,265 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1469274875] [2021-12-18 16:13:22,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 16:13:22,265 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 16:13:22,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:22,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 16:13:22,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:22,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-18 16:13:22,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:22,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-12-18 16:13:22,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:22,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-18 16:13:22,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:22,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-18 16:13:22,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:22,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-18 16:13:22,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:22,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-12-18 16:13:22,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:22,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:13:22,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:22,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-12-18 16:13:22,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:22,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-18 16:13:22,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:22,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-18 16:13:22,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:22,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-18 16:13:22,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:22,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-12-18 16:13:22,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:22,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-18 16:13:22,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:22,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-18 16:13:22,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:22,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-12-18 16:13:22,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:22,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-12-18 16:13:22,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:22,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-12-18 16:13:22,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:22,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-12-18 16:13:22,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:22,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2021-12-18 16:13:22,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:22,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-12-18 16:13:22,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:22,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-18 16:13:22,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:22,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-12-18 16:13:22,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:22,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-12-18 16:13:22,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:22,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-12-18 16:13:22,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:22,412 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-12-18 16:13:22,412 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 16:13:22,412 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1469274875] [2021-12-18 16:13:22,412 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1469274875] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 16:13:22,412 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 16:13:22,412 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-18 16:13:22,413 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [369397310] [2021-12-18 16:13:22,413 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 16:13:22,413 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 16:13:22,413 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 16:13:22,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 16:13:22,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-18 16:13:22,414 INFO L87 Difference]: Start difference. First operand 1559 states and 1989 transitions. Second operand has 6 states, 6 states have (on average 16.5) internal successors, (99), 4 states have internal predecessors, (99), 2 states have call successors, (26), 4 states have call predecessors, (26), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2021-12-18 16:13:24,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 16:13:24,558 INFO L93 Difference]: Finished difference Result 1559 states and 1989 transitions. [2021-12-18 16:13:24,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-18 16:13:24,558 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.5) internal successors, (99), 4 states have internal predecessors, (99), 2 states have call successors, (26), 4 states have call predecessors, (26), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 163 [2021-12-18 16:13:24,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 16:13:24,562 INFO L225 Difference]: With dead ends: 1559 [2021-12-18 16:13:24,563 INFO L226 Difference]: Without dead ends: 1557 [2021-12-18 16:13:24,563 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2021-12-18 16:13:24,563 INFO L933 BasicCegarLoop]: 1565 mSDtfsCounter, 2128 mSDsluCounter, 2013 mSDsCounter, 0 mSdLazyCounter, 1236 mSolverCounterSat, 1288 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2348 SdHoareTripleChecker+Valid, 3578 SdHoareTripleChecker+Invalid, 2524 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1288 IncrementalHoareTripleChecker+Valid, 1236 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2021-12-18 16:13:24,563 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2348 Valid, 3578 Invalid, 2524 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1288 Valid, 1236 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2021-12-18 16:13:24,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1557 states. [2021-12-18 16:13:24,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1557 to 1557. [2021-12-18 16:13:24,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1557 states, 978 states have (on average 1.1625766871165644) internal successors, (1137), 1009 states have internal predecessors, (1137), 426 states have call successors, (426), 145 states have call predecessors, (426), 144 states have return successors, (424), 420 states have call predecessors, (424), 424 states have call successors, (424) [2021-12-18 16:13:24,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1557 states to 1557 states and 1987 transitions. [2021-12-18 16:13:24,653 INFO L78 Accepts]: Start accepts. Automaton has 1557 states and 1987 transitions. Word has length 163 [2021-12-18 16:13:24,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 16:13:24,653 INFO L470 AbstractCegarLoop]: Abstraction has 1557 states and 1987 transitions. [2021-12-18 16:13:24,653 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.5) internal successors, (99), 4 states have internal predecessors, (99), 2 states have call successors, (26), 4 states have call predecessors, (26), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2021-12-18 16:13:24,654 INFO L276 IsEmpty]: Start isEmpty. Operand 1557 states and 1987 transitions. [2021-12-18 16:13:24,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2021-12-18 16:13:24,655 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 16:13:24,655 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 16:13:24,655 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-12-18 16:13:24,656 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ldv_linux_net_sock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2021-12-18 16:13:24,656 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 16:13:24,656 INFO L85 PathProgramCache]: Analyzing trace with hash 1399962434, now seen corresponding path program 1 times [2021-12-18 16:13:24,656 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 16:13:24,656 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [880143468] [2021-12-18 16:13:24,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 16:13:24,656 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 16:13:24,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:24,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 16:13:24,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:24,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-18 16:13:24,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:24,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-12-18 16:13:24,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:24,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-18 16:13:24,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:24,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-18 16:13:24,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:24,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-18 16:13:24,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:24,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-12-18 16:13:24,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:24,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:13:24,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:24,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-12-18 16:13:24,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:24,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-18 16:13:24,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:24,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-18 16:13:24,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:24,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-18 16:13:24,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:24,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-12-18 16:13:24,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:24,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-18 16:13:24,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:24,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-18 16:13:24,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:24,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-12-18 16:13:24,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:24,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-12-18 16:13:24,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:24,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-12-18 16:13:24,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:24,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-12-18 16:13:24,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:24,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2021-12-18 16:13:24,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:24,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-12-18 16:13:24,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:24,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-18 16:13:24,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:24,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-12-18 16:13:24,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:24,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-12-18 16:13:24,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:24,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-12-18 16:13:24,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:24,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2021-12-18 16:13:24,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:24,828 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-12-18 16:13:24,828 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 16:13:24,829 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [880143468] [2021-12-18 16:13:24,829 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [880143468] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 16:13:24,829 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 16:13:24,829 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-18 16:13:24,829 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [518347264] [2021-12-18 16:13:24,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 16:13:24,829 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 16:13:24,830 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 16:13:24,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 16:13:24,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-18 16:13:24,831 INFO L87 Difference]: Start difference. First operand 1557 states and 1987 transitions. Second operand has 6 states, 6 states have (on average 17.166666666666668) internal successors, (103), 4 states have internal predecessors, (103), 2 states have call successors, (27), 4 states have call predecessors, (27), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2021-12-18 16:13:27,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 16:13:27,222 INFO L93 Difference]: Finished difference Result 1557 states and 1987 transitions. [2021-12-18 16:13:27,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-18 16:13:27,223 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 17.166666666666668) internal successors, (103), 4 states have internal predecessors, (103), 2 states have call successors, (27), 4 states have call predecessors, (27), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 169 [2021-12-18 16:13:27,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 16:13:27,226 INFO L225 Difference]: With dead ends: 1557 [2021-12-18 16:13:27,226 INFO L226 Difference]: Without dead ends: 1555 [2021-12-18 16:13:27,226 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2021-12-18 16:13:27,227 INFO L933 BasicCegarLoop]: 1563 mSDtfsCounter, 2122 mSDsluCounter, 2013 mSDsCounter, 0 mSdLazyCounter, 1234 mSolverCounterSat, 1288 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2341 SdHoareTripleChecker+Valid, 3576 SdHoareTripleChecker+Invalid, 2522 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1288 IncrementalHoareTripleChecker+Valid, 1234 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2021-12-18 16:13:27,227 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2341 Valid, 3576 Invalid, 2522 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1288 Valid, 1234 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2021-12-18 16:13:27,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1555 states. [2021-12-18 16:13:27,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1555 to 1555. [2021-12-18 16:13:27,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1555 states, 977 states have (on average 1.1617195496417605) internal successors, (1135), 1007 states have internal predecessors, (1135), 426 states have call successors, (426), 145 states have call predecessors, (426), 144 states have return successors, (424), 420 states have call predecessors, (424), 424 states have call successors, (424) [2021-12-18 16:13:27,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1555 states to 1555 states and 1985 transitions. [2021-12-18 16:13:27,296 INFO L78 Accepts]: Start accepts. Automaton has 1555 states and 1985 transitions. Word has length 169 [2021-12-18 16:13:27,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 16:13:27,297 INFO L470 AbstractCegarLoop]: Abstraction has 1555 states and 1985 transitions. [2021-12-18 16:13:27,297 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 17.166666666666668) internal successors, (103), 4 states have internal predecessors, (103), 2 states have call successors, (27), 4 states have call predecessors, (27), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2021-12-18 16:13:27,297 INFO L276 IsEmpty]: Start isEmpty. Operand 1555 states and 1985 transitions. [2021-12-18 16:13:27,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2021-12-18 16:13:27,299 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 16:13:27,299 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 16:13:27,299 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-12-18 16:13:27,299 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2021-12-18 16:13:27,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 16:13:27,300 INFO L85 PathProgramCache]: Analyzing trace with hash -455654723, now seen corresponding path program 1 times [2021-12-18 16:13:27,300 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 16:13:27,300 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1201864924] [2021-12-18 16:13:27,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 16:13:27,300 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 16:13:27,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:27,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 16:13:27,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:27,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-18 16:13:27,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:27,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-12-18 16:13:27,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:27,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-18 16:13:27,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:27,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-18 16:13:27,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:27,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-18 16:13:27,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:27,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-12-18 16:13:27,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:27,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:13:27,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:27,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-12-18 16:13:27,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:27,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-18 16:13:27,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:27,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-18 16:13:27,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:27,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-18 16:13:27,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:27,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-12-18 16:13:27,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:27,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-18 16:13:27,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:27,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-18 16:13:27,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:27,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-12-18 16:13:27,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:27,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-12-18 16:13:27,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:27,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-12-18 16:13:27,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:27,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-12-18 16:13:27,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:27,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2021-12-18 16:13:27,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:27,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-12-18 16:13:27,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:27,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-18 16:13:27,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:27,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-12-18 16:13:27,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:27,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-12-18 16:13:27,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:27,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-12-18 16:13:27,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:27,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2021-12-18 16:13:27,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:27,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2021-12-18 16:13:27,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:27,457 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-12-18 16:13:27,457 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 16:13:27,457 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1201864924] [2021-12-18 16:13:27,457 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1201864924] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 16:13:27,457 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 16:13:27,457 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-18 16:13:27,458 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [952445892] [2021-12-18 16:13:27,458 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 16:13:27,458 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 16:13:27,458 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 16:13:27,458 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 16:13:27,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-18 16:13:27,459 INFO L87 Difference]: Start difference. First operand 1555 states and 1985 transitions. Second operand has 6 states, 6 states have (on average 17.833333333333332) internal successors, (107), 4 states have internal predecessors, (107), 2 states have call successors, (28), 4 states have call predecessors, (28), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2021-12-18 16:13:29,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 16:13:29,834 INFO L93 Difference]: Finished difference Result 1555 states and 1985 transitions. [2021-12-18 16:13:29,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-18 16:13:29,835 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 17.833333333333332) internal successors, (107), 4 states have internal predecessors, (107), 2 states have call successors, (28), 4 states have call predecessors, (28), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 175 [2021-12-18 16:13:29,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 16:13:29,839 INFO L225 Difference]: With dead ends: 1555 [2021-12-18 16:13:29,840 INFO L226 Difference]: Without dead ends: 1553 [2021-12-18 16:13:29,840 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2021-12-18 16:13:29,840 INFO L933 BasicCegarLoop]: 1561 mSDtfsCounter, 2116 mSDsluCounter, 2013 mSDsCounter, 0 mSdLazyCounter, 1232 mSolverCounterSat, 1288 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2334 SdHoareTripleChecker+Valid, 3574 SdHoareTripleChecker+Invalid, 2520 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1288 IncrementalHoareTripleChecker+Valid, 1232 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2021-12-18 16:13:29,840 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2334 Valid, 3574 Invalid, 2520 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1288 Valid, 1232 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2021-12-18 16:13:29,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1553 states. [2021-12-18 16:13:29,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1553 to 1553. [2021-12-18 16:13:29,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1553 states, 976 states have (on average 1.160860655737705) internal successors, (1133), 1005 states have internal predecessors, (1133), 426 states have call successors, (426), 145 states have call predecessors, (426), 144 states have return successors, (424), 420 states have call predecessors, (424), 424 states have call successors, (424) [2021-12-18 16:13:29,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1553 states to 1553 states and 1983 transitions. [2021-12-18 16:13:29,912 INFO L78 Accepts]: Start accepts. Automaton has 1553 states and 1983 transitions. Word has length 175 [2021-12-18 16:13:29,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 16:13:29,912 INFO L470 AbstractCegarLoop]: Abstraction has 1553 states and 1983 transitions. [2021-12-18 16:13:29,912 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 17.833333333333332) internal successors, (107), 4 states have internal predecessors, (107), 2 states have call successors, (28), 4 states have call predecessors, (28), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2021-12-18 16:13:29,912 INFO L276 IsEmpty]: Start isEmpty. Operand 1553 states and 1983 transitions. [2021-12-18 16:13:29,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2021-12-18 16:13:29,914 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 16:13:29,914 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1] [2021-12-18 16:13:29,914 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2021-12-18 16:13:29,915 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2021-12-18 16:13:29,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 16:13:29,915 INFO L85 PathProgramCache]: Analyzing trace with hash -1414320707, now seen corresponding path program 1 times [2021-12-18 16:13:29,915 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 16:13:29,915 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [799985024] [2021-12-18 16:13:29,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 16:13:29,915 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 16:13:29,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:30,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 16:13:30,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:30,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-18 16:13:30,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:30,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-12-18 16:13:30,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:30,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-18 16:13:30,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:30,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-18 16:13:30,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:30,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-18 16:13:30,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:30,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-12-18 16:13:30,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:30,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:13:30,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:30,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-12-18 16:13:30,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:30,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-18 16:13:30,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:30,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-18 16:13:30,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:30,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-12-18 16:13:30,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:30,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:13:30,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:30,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:13:30,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:30,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 16:13:30,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:30,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-12-18 16:13:30,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:30,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:13:30,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:30,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:13:30,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:30,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 16:13:30,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:30,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-18 16:13:30,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:30,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:13:30,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:30,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:13:30,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:30,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 16:13:30,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:30,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-18 16:13:30,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:30,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-12-18 16:13:30,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:30,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-12-18 16:13:30,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:30,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:13:30,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:30,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2021-12-18 16:13:30,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:30,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:13:30,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:30,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:13:30,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:30,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-18 16:13:30,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:30,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2021-12-18 16:13:30,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:30,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:13:30,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:30,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:13:30,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:30,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-18 16:13:30,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:30,176 INFO L134 CoverageAnalysis]: Checked inductivity of 342 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 342 trivial. 0 not checked. [2021-12-18 16:13:30,177 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 16:13:30,177 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [799985024] [2021-12-18 16:13:30,177 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [799985024] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 16:13:30,177 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 16:13:30,177 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-12-18 16:13:30,177 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [550463812] [2021-12-18 16:13:30,177 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 16:13:30,178 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-12-18 16:13:30,178 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 16:13:30,178 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-12-18 16:13:30,178 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-12-18 16:13:30,178 INFO L87 Difference]: Start difference. First operand 1553 states and 1983 transitions. Second operand has 10 states, 10 states have (on average 8.5) internal successors, (85), 4 states have internal predecessors, (85), 2 states have call successors, (31), 8 states have call predecessors, (31), 2 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2021-12-18 16:13:35,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 16:13:35,445 INFO L93 Difference]: Finished difference Result 1587 states and 2022 transitions. [2021-12-18 16:13:35,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-12-18 16:13:35,446 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 8.5) internal successors, (85), 4 states have internal predecessors, (85), 2 states have call successors, (31), 8 states have call predecessors, (31), 2 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) Word has length 212 [2021-12-18 16:13:35,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 16:13:35,450 INFO L225 Difference]: With dead ends: 1587 [2021-12-18 16:13:35,450 INFO L226 Difference]: Without dead ends: 1585 [2021-12-18 16:13:35,451 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 113 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=180, Invalid=420, Unknown=0, NotChecked=0, Total=600 [2021-12-18 16:13:35,451 INFO L933 BasicCegarLoop]: 1618 mSDtfsCounter, 2796 mSDsluCounter, 5145 mSDsCounter, 0 mSdLazyCounter, 4165 mSolverCounterSat, 2823 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2814 SdHoareTripleChecker+Valid, 6763 SdHoareTripleChecker+Invalid, 6988 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2823 IncrementalHoareTripleChecker+Valid, 4165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2021-12-18 16:13:35,451 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2814 Valid, 6763 Invalid, 6988 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2823 Valid, 4165 Invalid, 0 Unknown, 0 Unchecked, 5.0s Time] [2021-12-18 16:13:35,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1585 states. [2021-12-18 16:13:35,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1585 to 1557. [2021-12-18 16:13:35,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1557 states, 979 states have (on average 1.160367722165475) internal successors, (1136), 1008 states have internal predecessors, (1136), 426 states have call successors, (426), 146 states have call predecessors, (426), 145 states have return successors, (424), 420 states have call predecessors, (424), 424 states have call successors, (424) [2021-12-18 16:13:35,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1557 states to 1557 states and 1986 transitions. [2021-12-18 16:13:35,523 INFO L78 Accepts]: Start accepts. Automaton has 1557 states and 1986 transitions. Word has length 212 [2021-12-18 16:13:35,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 16:13:35,523 INFO L470 AbstractCegarLoop]: Abstraction has 1557 states and 1986 transitions. [2021-12-18 16:13:35,524 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.5) internal successors, (85), 4 states have internal predecessors, (85), 2 states have call successors, (31), 8 states have call predecessors, (31), 2 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2021-12-18 16:13:35,524 INFO L276 IsEmpty]: Start isEmpty. Operand 1557 states and 1986 transitions. [2021-12-18 16:13:35,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2021-12-18 16:13:35,525 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 16:13:35,526 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 16:13:35,526 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2021-12-18 16:13:35,526 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2021-12-18 16:13:35,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 16:13:35,526 INFO L85 PathProgramCache]: Analyzing trace with hash -472763115, now seen corresponding path program 1 times [2021-12-18 16:13:35,526 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 16:13:35,526 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1752451310] [2021-12-18 16:13:35,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 16:13:35,527 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 16:13:35,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:35,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 16:13:35,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:35,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-18 16:13:35,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:35,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-12-18 16:13:35,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:35,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-18 16:13:35,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:35,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-18 16:13:35,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:35,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-18 16:13:35,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:35,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-12-18 16:13:35,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:35,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:13:35,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:35,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-12-18 16:13:35,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:35,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-18 16:13:35,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:35,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-18 16:13:35,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:35,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-18 16:13:35,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:35,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-12-18 16:13:35,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:35,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-18 16:13:35,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:35,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-18 16:13:35,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:35,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-12-18 16:13:35,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:35,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-12-18 16:13:35,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:35,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-12-18 16:13:35,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:35,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-12-18 16:13:35,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:35,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2021-12-18 16:13:35,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:35,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-12-18 16:13:35,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:35,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-18 16:13:35,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:35,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-12-18 16:13:35,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:35,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-12-18 16:13:35,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:35,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-12-18 16:13:35,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:35,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2021-12-18 16:13:35,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:35,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2021-12-18 16:13:35,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:35,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2021-12-18 16:13:35,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:35,717 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-12-18 16:13:35,717 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 16:13:35,717 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1752451310] [2021-12-18 16:13:35,717 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1752451310] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 16:13:35,717 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 16:13:35,717 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-18 16:13:35,718 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1798969250] [2021-12-18 16:13:35,718 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 16:13:35,718 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 16:13:35,718 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 16:13:35,719 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 16:13:35,719 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-18 16:13:35,719 INFO L87 Difference]: Start difference. First operand 1557 states and 1986 transitions. Second operand has 6 states, 6 states have (on average 18.5) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (29), 4 states have call predecessors, (29), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2021-12-18 16:13:37,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 16:13:37,952 INFO L93 Difference]: Finished difference Result 1557 states and 1986 transitions. [2021-12-18 16:13:37,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-18 16:13:37,952 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 18.5) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (29), 4 states have call predecessors, (29), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 181 [2021-12-18 16:13:37,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 16:13:37,957 INFO L225 Difference]: With dead ends: 1557 [2021-12-18 16:13:37,957 INFO L226 Difference]: Without dead ends: 1555 [2021-12-18 16:13:37,958 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2021-12-18 16:13:37,968 INFO L933 BasicCegarLoop]: 1559 mSDtfsCounter, 2110 mSDsluCounter, 2013 mSDsCounter, 0 mSdLazyCounter, 1230 mSolverCounterSat, 1288 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2327 SdHoareTripleChecker+Valid, 3572 SdHoareTripleChecker+Invalid, 2518 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1288 IncrementalHoareTripleChecker+Valid, 1230 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2021-12-18 16:13:37,969 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2327 Valid, 3572 Invalid, 2518 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1288 Valid, 1230 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2021-12-18 16:13:37,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1555 states. [2021-12-18 16:13:38,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1555 to 1555. [2021-12-18 16:13:38,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1555 states, 978 states have (on average 1.1595092024539877) internal successors, (1134), 1006 states have internal predecessors, (1134), 426 states have call successors, (426), 146 states have call predecessors, (426), 145 states have return successors, (424), 420 states have call predecessors, (424), 424 states have call successors, (424) [2021-12-18 16:13:38,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1555 states to 1555 states and 1984 transitions. [2021-12-18 16:13:38,072 INFO L78 Accepts]: Start accepts. Automaton has 1555 states and 1984 transitions. Word has length 181 [2021-12-18 16:13:38,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 16:13:38,072 INFO L470 AbstractCegarLoop]: Abstraction has 1555 states and 1984 transitions. [2021-12-18 16:13:38,072 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 18.5) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (29), 4 states have call predecessors, (29), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2021-12-18 16:13:38,072 INFO L276 IsEmpty]: Start isEmpty. Operand 1555 states and 1984 transitions. [2021-12-18 16:13:38,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2021-12-18 16:13:38,074 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 16:13:38,074 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 16:13:38,074 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2021-12-18 16:13:38,075 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ldv_linux_usb_urb_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2021-12-18 16:13:38,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 16:13:38,076 INFO L85 PathProgramCache]: Analyzing trace with hash -1896480811, now seen corresponding path program 1 times [2021-12-18 16:13:38,076 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 16:13:38,076 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1316154273] [2021-12-18 16:13:38,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 16:13:38,076 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 16:13:38,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:38,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 16:13:38,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:38,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-18 16:13:38,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:38,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-12-18 16:13:38,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:38,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-18 16:13:38,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:38,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-18 16:13:38,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:38,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-18 16:13:38,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:38,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-12-18 16:13:38,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:38,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:13:38,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:38,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-12-18 16:13:38,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:38,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-18 16:13:38,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:38,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-18 16:13:38,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:38,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-18 16:13:38,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:38,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-12-18 16:13:38,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:38,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-18 16:13:38,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:38,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-18 16:13:38,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:38,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-12-18 16:13:38,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:38,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-12-18 16:13:38,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:38,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-12-18 16:13:38,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:38,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-12-18 16:13:38,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:38,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2021-12-18 16:13:38,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:38,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-12-18 16:13:38,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:38,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-18 16:13:38,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:38,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-12-18 16:13:38,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:38,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-12-18 16:13:38,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:38,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-12-18 16:13:38,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:38,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2021-12-18 16:13:38,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:38,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2021-12-18 16:13:38,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:38,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2021-12-18 16:13:38,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:38,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2021-12-18 16:13:38,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:38,245 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-12-18 16:13:38,245 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 16:13:38,245 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1316154273] [2021-12-18 16:13:38,245 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1316154273] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 16:13:38,246 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 16:13:38,246 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-18 16:13:38,246 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [638677969] [2021-12-18 16:13:38,246 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 16:13:38,246 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 16:13:38,246 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 16:13:38,247 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 16:13:38,247 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-18 16:13:38,247 INFO L87 Difference]: Start difference. First operand 1555 states and 1984 transitions. Second operand has 6 states, 6 states have (on average 19.166666666666668) internal successors, (115), 4 states have internal predecessors, (115), 2 states have call successors, (30), 4 states have call predecessors, (30), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2021-12-18 16:13:42,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 16:13:42,155 INFO L93 Difference]: Finished difference Result 2951 states and 3765 transitions. [2021-12-18 16:13:42,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-12-18 16:13:42,155 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 19.166666666666668) internal successors, (115), 4 states have internal predecessors, (115), 2 states have call successors, (30), 4 states have call predecessors, (30), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) Word has length 187 [2021-12-18 16:13:42,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 16:13:42,163 INFO L225 Difference]: With dead ends: 2951 [2021-12-18 16:13:42,163 INFO L226 Difference]: Without dead ends: 2796 [2021-12-18 16:13:42,166 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-12-18 16:13:42,167 INFO L933 BasicCegarLoop]: 1962 mSDtfsCounter, 2765 mSDsluCounter, 3356 mSDsCounter, 0 mSdLazyCounter, 2581 mSolverCounterSat, 2107 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2978 SdHoareTripleChecker+Valid, 5318 SdHoareTripleChecker+Invalid, 4688 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2107 IncrementalHoareTripleChecker+Valid, 2581 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2021-12-18 16:13:42,167 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2978 Valid, 5318 Invalid, 4688 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2107 Valid, 2581 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2021-12-18 16:13:42,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2796 states. [2021-12-18 16:13:42,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2796 to 2782. [2021-12-18 16:13:42,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2782 states, 1751 states have (on average 1.1633352370074244) internal successors, (2037), 1794 states have internal predecessors, (2037), 763 states have call successors, (763), 262 states have call predecessors, (763), 262 states have return successors, (775), 757 states have call predecessors, (775), 761 states have call successors, (775) [2021-12-18 16:13:42,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2782 states to 2782 states and 3575 transitions. [2021-12-18 16:13:42,309 INFO L78 Accepts]: Start accepts. Automaton has 2782 states and 3575 transitions. Word has length 187 [2021-12-18 16:13:42,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 16:13:42,310 INFO L470 AbstractCegarLoop]: Abstraction has 2782 states and 3575 transitions. [2021-12-18 16:13:42,310 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 19.166666666666668) internal successors, (115), 4 states have internal predecessors, (115), 2 states have call successors, (30), 4 states have call predecessors, (30), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2021-12-18 16:13:42,310 INFO L276 IsEmpty]: Start isEmpty. Operand 2782 states and 3575 transitions. [2021-12-18 16:13:42,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2021-12-18 16:13:42,311 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 16:13:42,312 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 16:13:42,312 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2021-12-18 16:13:42,312 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2021-12-18 16:13:42,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 16:13:42,312 INFO L85 PathProgramCache]: Analyzing trace with hash -1060801433, now seen corresponding path program 1 times [2021-12-18 16:13:42,312 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 16:13:42,313 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1440582611] [2021-12-18 16:13:42,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 16:13:42,313 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 16:13:42,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:42,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 16:13:42,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:42,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-18 16:13:42,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:42,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-12-18 16:13:42,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:42,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-18 16:13:42,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:42,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-18 16:13:42,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:42,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-18 16:13:42,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:42,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-12-18 16:13:42,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:42,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:13:42,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:42,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-12-18 16:13:42,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:42,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-18 16:13:42,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:42,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-18 16:13:42,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:42,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-12-18 16:13:42,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:42,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:13:42,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:42,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:13:42,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:42,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 16:13:42,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:42,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-12-18 16:13:42,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:42,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:13:42,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:42,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:13:42,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:42,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 16:13:42,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:42,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-18 16:13:42,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:42,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:13:42,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:42,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:13:42,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:42,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 16:13:42,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:42,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-18 16:13:42,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:42,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-12-18 16:13:42,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:42,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-12-18 16:13:42,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:42,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:13:42,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:42,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2021-12-18 16:13:42,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:42,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:13:42,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:42,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:13:42,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:42,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-18 16:13:42,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:42,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2021-12-18 16:13:42,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:42,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:13:42,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:42,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:13:42,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:42,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-18 16:13:42,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:42,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2021-12-18 16:13:42,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:42,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2021-12-18 16:13:42,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:42,594 INFO L134 CoverageAnalysis]: Checked inductivity of 344 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 342 trivial. 0 not checked. [2021-12-18 16:13:42,595 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 16:13:42,595 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1440582611] [2021-12-18 16:13:42,595 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1440582611] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 16:13:42,595 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 16:13:42,595 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-12-18 16:13:42,595 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [450045123] [2021-12-18 16:13:42,595 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 16:13:42,596 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-12-18 16:13:42,596 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 16:13:42,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-12-18 16:13:42,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-12-18 16:13:42,596 INFO L87 Difference]: Start difference. First operand 2782 states and 3575 transitions. Second operand has 10 states, 10 states have (on average 9.2) internal successors, (92), 5 states have internal predecessors, (92), 3 states have call successors, (33), 7 states have call predecessors, (33), 1 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) [2021-12-18 16:13:48,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 16:13:48,649 INFO L93 Difference]: Finished difference Result 5231 states and 6857 transitions. [2021-12-18 16:13:48,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-12-18 16:13:48,649 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 5 states have internal predecessors, (92), 3 states have call successors, (33), 7 states have call predecessors, (33), 1 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) Word has length 223 [2021-12-18 16:13:48,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 16:13:48,659 INFO L225 Difference]: With dead ends: 5231 [2021-12-18 16:13:48,659 INFO L226 Difference]: Without dead ends: 3504 [2021-12-18 16:13:48,664 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=86, Invalid=294, Unknown=0, NotChecked=0, Total=380 [2021-12-18 16:13:48,664 INFO L933 BasicCegarLoop]: 1696 mSDtfsCounter, 3030 mSDsluCounter, 5625 mSDsCounter, 0 mSdLazyCounter, 4259 mSolverCounterSat, 3597 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3030 SdHoareTripleChecker+Valid, 7321 SdHoareTripleChecker+Invalid, 7856 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3597 IncrementalHoareTripleChecker+Valid, 4259 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2021-12-18 16:13:48,665 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3030 Valid, 7321 Invalid, 7856 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3597 Valid, 4259 Invalid, 0 Unknown, 0 Unchecked, 5.7s Time] [2021-12-18 16:13:48,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3504 states. [2021-12-18 16:13:48,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3504 to 2790. [2021-12-18 16:13:48,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2790 states, 1757 states have (on average 1.1627774615822424) internal successors, (2043), 1800 states have internal predecessors, (2043), 765 states have call successors, (765), 262 states have call predecessors, (765), 262 states have return successors, (777), 759 states have call predecessors, (777), 763 states have call successors, (777) [2021-12-18 16:13:48,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2790 states to 2790 states and 3585 transitions. [2021-12-18 16:13:48,857 INFO L78 Accepts]: Start accepts. Automaton has 2790 states and 3585 transitions. Word has length 223 [2021-12-18 16:13:48,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 16:13:48,858 INFO L470 AbstractCegarLoop]: Abstraction has 2790 states and 3585 transitions. [2021-12-18 16:13:48,858 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 5 states have internal predecessors, (92), 3 states have call successors, (33), 7 states have call predecessors, (33), 1 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) [2021-12-18 16:13:48,858 INFO L276 IsEmpty]: Start isEmpty. Operand 2790 states and 3585 transitions. [2021-12-18 16:13:48,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2021-12-18 16:13:48,860 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 16:13:48,860 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 16:13:48,860 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2021-12-18 16:13:48,860 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2021-12-18 16:13:48,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 16:13:48,861 INFO L85 PathProgramCache]: Analyzing trace with hash -1603522296, now seen corresponding path program 1 times [2021-12-18 16:13:48,861 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 16:13:48,861 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1624314782] [2021-12-18 16:13:48,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 16:13:48,861 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 16:13:48,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:48,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 16:13:48,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:48,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-18 16:13:48,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:48,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-12-18 16:13:48,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:48,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-18 16:13:48,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:49,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-18 16:13:49,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:49,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-18 16:13:49,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:49,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-12-18 16:13:49,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:49,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:13:49,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:49,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-12-18 16:13:49,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:49,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-18 16:13:49,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:49,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-18 16:13:49,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:49,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-12-18 16:13:49,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:49,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:13:49,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:49,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:13:49,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:49,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 16:13:49,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:49,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-12-18 16:13:49,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:49,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:13:49,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:49,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:13:49,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:49,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 16:13:49,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:49,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-18 16:13:49,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:49,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:13:49,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:49,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:13:49,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:49,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 16:13:49,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:49,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-18 16:13:49,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:49,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-12-18 16:13:49,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:49,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-12-18 16:13:49,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:49,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:13:49,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:49,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2021-12-18 16:13:49,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:49,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:13:49,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:49,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:13:49,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:49,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-18 16:13:49,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:49,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2021-12-18 16:13:49,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:49,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:13:49,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:49,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:13:49,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:49,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-18 16:13:49,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:49,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2021-12-18 16:13:49,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:49,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2021-12-18 16:13:49,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:49,140 INFO L134 CoverageAnalysis]: Checked inductivity of 344 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 342 trivial. 0 not checked. [2021-12-18 16:13:49,140 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 16:13:49,140 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1624314782] [2021-12-18 16:13:49,140 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1624314782] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 16:13:49,141 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 16:13:49,141 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-12-18 16:13:49,141 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1594484282] [2021-12-18 16:13:49,141 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 16:13:49,141 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-12-18 16:13:49,141 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 16:13:49,142 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-12-18 16:13:49,142 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-12-18 16:13:49,142 INFO L87 Difference]: Start difference. First operand 2790 states and 3585 transitions. Second operand has 10 states, 10 states have (on average 9.4) internal successors, (94), 4 states have internal predecessors, (94), 2 states have call successors, (33), 8 states have call predecessors, (33), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2021-12-18 16:13:54,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 16:13:54,939 INFO L93 Difference]: Finished difference Result 4298 states and 5517 transitions. [2021-12-18 16:13:54,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-12-18 16:13:54,940 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.4) internal successors, (94), 4 states have internal predecessors, (94), 2 states have call successors, (33), 8 states have call predecessors, (33), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) Word has length 225 [2021-12-18 16:13:54,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 16:13:54,949 INFO L225 Difference]: With dead ends: 4298 [2021-12-18 16:13:54,950 INFO L226 Difference]: Without dead ends: 4296 [2021-12-18 16:13:54,951 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 171 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=234, Invalid=522, Unknown=0, NotChecked=0, Total=756 [2021-12-18 16:13:54,951 INFO L933 BasicCegarLoop]: 1772 mSDtfsCounter, 4272 mSDsluCounter, 5776 mSDsCounter, 0 mSdLazyCounter, 4090 mSolverCounterSat, 3849 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4480 SdHoareTripleChecker+Valid, 7548 SdHoareTripleChecker+Invalid, 7939 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3849 IncrementalHoareTripleChecker+Valid, 4090 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2021-12-18 16:13:54,952 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4480 Valid, 7548 Invalid, 7939 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3849 Valid, 4090 Invalid, 0 Unknown, 0 Unchecked, 5.3s Time] [2021-12-18 16:13:54,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4296 states. [2021-12-18 16:13:55,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4296 to 4240. [2021-12-18 16:13:55,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4240 states, 2677 states have (on average 1.173328352633545) internal successors, (3141), 2748 states have internal predecessors, (3141), 1141 states have call successors, (1141), 422 states have call predecessors, (1141), 416 states have return successors, (1154), 1119 states have call predecessors, (1154), 1139 states have call successors, (1154) [2021-12-18 16:13:55,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4240 states to 4240 states and 5436 transitions. [2021-12-18 16:13:55,180 INFO L78 Accepts]: Start accepts. Automaton has 4240 states and 5436 transitions. Word has length 225 [2021-12-18 16:13:55,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 16:13:55,180 INFO L470 AbstractCegarLoop]: Abstraction has 4240 states and 5436 transitions. [2021-12-18 16:13:55,180 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.4) internal successors, (94), 4 states have internal predecessors, (94), 2 states have call successors, (33), 8 states have call predecessors, (33), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2021-12-18 16:13:55,180 INFO L276 IsEmpty]: Start isEmpty. Operand 4240 states and 5436 transitions. [2021-12-18 16:13:55,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 239 [2021-12-18 16:13:55,182 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 16:13:55,182 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 16:13:55,183 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2021-12-18 16:13:55,183 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2021-12-18 16:13:55,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 16:13:55,184 INFO L85 PathProgramCache]: Analyzing trace with hash 1211749612, now seen corresponding path program 1 times [2021-12-18 16:13:55,184 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 16:13:55,184 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1462327234] [2021-12-18 16:13:55,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 16:13:55,184 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 16:13:55,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:55,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 16:13:55,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:55,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-18 16:13:55,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:55,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-12-18 16:13:55,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:55,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-18 16:13:55,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:55,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-18 16:13:55,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:55,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-18 16:13:55,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:55,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-12-18 16:13:55,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:55,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:13:55,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:55,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-12-18 16:13:55,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:55,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-18 16:13:55,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:55,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-18 16:13:55,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:55,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-12-18 16:13:55,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:55,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:13:55,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:55,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:13:55,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:55,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 16:13:55,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:55,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-12-18 16:13:55,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:55,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:13:55,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:55,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:13:55,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:55,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 16:13:55,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:55,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-18 16:13:55,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:55,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:13:55,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:55,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:13:55,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:55,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 16:13:55,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:55,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-18 16:13:55,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:55,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-12-18 16:13:55,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:55,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-12-18 16:13:55,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:55,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:13:55,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:55,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2021-12-18 16:13:55,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:55,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:13:55,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:55,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:13:55,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:55,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-18 16:13:55,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:55,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2021-12-18 16:13:55,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:55,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:13:55,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:55,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:13:55,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:55,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-18 16:13:55,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:55,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2021-12-18 16:13:55,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:55,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2021-12-18 16:13:55,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:55,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2021-12-18 16:13:55,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:55,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:13:55,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:13:55,464 INFO L134 CoverageAnalysis]: Checked inductivity of 346 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 346 trivial. 0 not checked. [2021-12-18 16:13:55,465 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 16:13:55,465 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1462327234] [2021-12-18 16:13:55,465 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1462327234] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 16:13:55,465 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 16:13:55,465 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-18 16:13:55,465 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [981957334] [2021-12-18 16:13:55,465 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 16:13:55,466 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-12-18 16:13:55,466 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 16:13:55,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-12-18 16:13:55,466 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2021-12-18 16:13:55,466 INFO L87 Difference]: Start difference. First operand 4240 states and 5436 transitions. Second operand has 11 states, 11 states have (on average 9.090909090909092) internal successors, (100), 4 states have internal predecessors, (100), 2 states have call successors, (35), 9 states have call predecessors, (35), 2 states have return successors, (33), 2 states have call predecessors, (33), 1 states have call successors, (33) [2021-12-18 16:14:02,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 16:14:02,950 INFO L93 Difference]: Finished difference Result 4320 states and 5539 transitions. [2021-12-18 16:14:02,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-12-18 16:14:02,950 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 9.090909090909092) internal successors, (100), 4 states have internal predecessors, (100), 2 states have call successors, (35), 9 states have call predecessors, (35), 2 states have return successors, (33), 2 states have call predecessors, (33), 1 states have call successors, (33) Word has length 238 [2021-12-18 16:14:02,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 16:14:02,960 INFO L225 Difference]: With dead ends: 4320 [2021-12-18 16:14:02,960 INFO L226 Difference]: Without dead ends: 4318 [2021-12-18 16:14:02,962 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 199 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=270, Invalid=660, Unknown=0, NotChecked=0, Total=930 [2021-12-18 16:14:02,962 INFO L933 BasicCegarLoop]: 2122 mSDtfsCounter, 3395 mSDsluCounter, 7682 mSDsCounter, 0 mSdLazyCounter, 5990 mSolverCounterSat, 3718 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3516 SdHoareTripleChecker+Valid, 9804 SdHoareTripleChecker+Invalid, 9708 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3718 IncrementalHoareTripleChecker+Valid, 5990 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.9s IncrementalHoareTripleChecker+Time [2021-12-18 16:14:02,962 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3516 Valid, 9804 Invalid, 9708 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3718 Valid, 5990 Invalid, 0 Unknown, 0 Unchecked, 6.9s Time] [2021-12-18 16:14:02,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4318 states. [2021-12-18 16:14:03,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4318 to 4254. [2021-12-18 16:14:03,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4254 states, 2687 states have (on average 1.1719389653889096) internal successors, (3149), 2758 states have internal predecessors, (3149), 1141 states have call successors, (1141), 424 states have call predecessors, (1141), 420 states have return successors, (1154), 1121 states have call predecessors, (1154), 1139 states have call successors, (1154) [2021-12-18 16:14:03,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4254 states to 4254 states and 5444 transitions. [2021-12-18 16:14:03,196 INFO L78 Accepts]: Start accepts. Automaton has 4254 states and 5444 transitions. Word has length 238 [2021-12-18 16:14:03,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 16:14:03,197 INFO L470 AbstractCegarLoop]: Abstraction has 4254 states and 5444 transitions. [2021-12-18 16:14:03,197 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 9.090909090909092) internal successors, (100), 4 states have internal predecessors, (100), 2 states have call successors, (35), 9 states have call predecessors, (35), 2 states have return successors, (33), 2 states have call predecessors, (33), 1 states have call successors, (33) [2021-12-18 16:14:03,197 INFO L276 IsEmpty]: Start isEmpty. Operand 4254 states and 5444 transitions. [2021-12-18 16:14:03,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 258 [2021-12-18 16:14:03,199 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 16:14:03,199 INFO L514 BasicCegarLoop]: trace histogram [16, 16, 16, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 16:14:03,200 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2021-12-18 16:14:03,200 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2021-12-18 16:14:03,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 16:14:03,200 INFO L85 PathProgramCache]: Analyzing trace with hash 969542739, now seen corresponding path program 1 times [2021-12-18 16:14:03,200 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 16:14:03,200 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [103927139] [2021-12-18 16:14:03,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 16:14:03,201 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 16:14:03,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:14:03,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 16:14:03,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:14:03,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-18 16:14:03,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:14:03,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-12-18 16:14:03,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:14:03,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-18 16:14:03,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:14:03,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-12-18 16:14:03,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:14:03,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:14:03,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:14:03,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:14:03,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:14:03,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 16:14:03,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:14:03,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-18 16:14:03,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:14:03,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:14:03,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:14:03,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:14:03,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:14:03,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 16:14:03,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:14:03,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-12-18 16:14:03,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:14:03,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:14:03,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:14:03,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:14:03,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:14:03,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 16:14:03,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:14:03,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-12-18 16:14:03,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:14:03,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:14:03,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:14:03,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:14:03,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:14:03,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 16:14:03,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:14:03,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-12-18 16:14:03,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:14:03,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:14:03,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:14:03,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:14:03,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:14:03,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 16:14:03,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:14:03,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-12-18 16:14:03,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:14:03,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-12-18 16:14:03,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:14:03,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-12-18 16:14:03,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:14:03,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2021-12-18 16:14:03,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:14:03,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2021-12-18 16:14:03,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:14:03,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:14:03,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:14:03,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2021-12-18 16:14:03,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:14:03,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2021-12-18 16:14:03,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:14:03,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2021-12-18 16:14:03,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:14:03,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2021-12-18 16:14:03,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:14:03,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2021-12-18 16:14:03,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:14:03,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:14:03,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:14:03,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:14:03,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:14:03,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:14:03,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:14:03,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-18 16:14:03,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:14:03,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-18 16:14:03,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:14:03,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:14:03,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:14:03,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:14:03,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:14:03,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-18 16:14:03,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:14:03,469 INFO L134 CoverageAnalysis]: Checked inductivity of 616 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 614 trivial. 0 not checked. [2021-12-18 16:14:03,469 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 16:14:03,469 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [103927139] [2021-12-18 16:14:03,469 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [103927139] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 16:14:03,469 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 16:14:03,469 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-12-18 16:14:03,469 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [246935179] [2021-12-18 16:14:03,469 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 16:14:03,470 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-12-18 16:14:03,470 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 16:14:03,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-12-18 16:14:03,470 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2021-12-18 16:14:03,471 INFO L87 Difference]: Start difference. First operand 4254 states and 5444 transitions. Second operand has 10 states, 10 states have (on average 8.9) internal successors, (89), 4 states have internal predecessors, (89), 2 states have call successors, (34), 8 states have call predecessors, (34), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2021-12-18 16:14:07,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 16:14:07,689 INFO L93 Difference]: Finished difference Result 4378 states and 5568 transitions. [2021-12-18 16:14:07,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-12-18 16:14:07,689 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 8.9) internal successors, (89), 4 states have internal predecessors, (89), 2 states have call successors, (34), 8 states have call predecessors, (34), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) Word has length 257 [2021-12-18 16:14:07,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 16:14:07,699 INFO L225 Difference]: With dead ends: 4378 [2021-12-18 16:14:07,699 INFO L226 Difference]: Without dead ends: 4376 [2021-12-18 16:14:07,700 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 87 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=136, Invalid=284, Unknown=0, NotChecked=0, Total=420 [2021-12-18 16:14:07,701 INFO L933 BasicCegarLoop]: 1554 mSDtfsCounter, 3144 mSDsluCounter, 4160 mSDsCounter, 0 mSdLazyCounter, 2702 mSolverCounterSat, 2688 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3334 SdHoareTripleChecker+Valid, 5714 SdHoareTripleChecker+Invalid, 5390 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2688 IncrementalHoareTripleChecker+Valid, 2702 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2021-12-18 16:14:07,701 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3334 Valid, 5714 Invalid, 5390 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2688 Valid, 2702 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2021-12-18 16:14:07,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4376 states. [2021-12-18 16:14:07,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4376 to 4332. [2021-12-18 16:14:07,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4332 states, 2742 states have (on average 1.1655725747629468) internal successors, (3196), 2812 states have internal predecessors, (3196), 1141 states have call successors, (1141), 448 states have call predecessors, (1141), 444 states have return successors, (1154), 1121 states have call predecessors, (1154), 1139 states have call successors, (1154) [2021-12-18 16:14:07,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4332 states to 4332 states and 5491 transitions. [2021-12-18 16:14:07,971 INFO L78 Accepts]: Start accepts. Automaton has 4332 states and 5491 transitions. Word has length 257 [2021-12-18 16:14:07,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 16:14:07,971 INFO L470 AbstractCegarLoop]: Abstraction has 4332 states and 5491 transitions. [2021-12-18 16:14:07,971 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.9) internal successors, (89), 4 states have internal predecessors, (89), 2 states have call successors, (34), 8 states have call predecessors, (34), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2021-12-18 16:14:07,971 INFO L276 IsEmpty]: Start isEmpty. Operand 4332 states and 5491 transitions. [2021-12-18 16:14:07,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 284 [2021-12-18 16:14:07,974 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 16:14:07,974 INFO L514 BasicCegarLoop]: trace histogram [18, 18, 18, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 16:14:07,974 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2021-12-18 16:14:07,974 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2021-12-18 16:14:07,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 16:14:07,974 INFO L85 PathProgramCache]: Analyzing trace with hash -156759213, now seen corresponding path program 1 times [2021-12-18 16:14:07,975 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 16:14:07,975 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2086322755] [2021-12-18 16:14:07,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 16:14:07,975 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 16:14:08,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:14:08,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 16:14:08,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:14:08,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-18 16:14:08,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:14:08,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-12-18 16:14:08,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:14:08,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-18 16:14:08,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:14:08,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-12-18 16:14:08,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:14:08,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:14:08,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:14:08,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:14:08,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:14:08,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 16:14:08,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:14:08,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-18 16:14:08,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:14:08,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:14:08,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:14:08,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:14:08,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:14:08,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 16:14:08,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:14:08,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-12-18 16:14:08,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:14:08,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:14:08,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:14:08,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:14:08,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:14:08,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 16:14:08,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:14:08,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-12-18 16:14:08,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:14:08,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:14:08,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:14:08,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:14:08,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:14:08,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 16:14:08,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:14:08,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-12-18 16:14:08,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:14:08,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:14:08,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:14:08,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:14:08,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:14:08,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 16:14:08,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:14:08,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-12-18 16:14:08,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:14:08,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-12-18 16:14:08,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:14:08,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-12-18 16:14:08,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:14:08,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2021-12-18 16:14:08,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:14:08,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2021-12-18 16:14:08,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:14:08,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:14:08,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:14:08,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2021-12-18 16:14:08,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:14:08,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2021-12-18 16:14:08,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:14:08,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2021-12-18 16:14:08,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:14:08,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2021-12-18 16:14:08,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:14:08,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2021-12-18 16:14:08,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:14:08,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:14:08,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:14:08,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:14:08,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:14:08,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 16:14:08,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:14:08,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2021-12-18 16:14:08,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:14:08,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:14:08,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:14:08,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:14:08,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:14:08,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:14:08,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:14:08,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-18 16:14:08,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:14:08,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-18 16:14:08,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:14:08,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:14:08,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:14:08,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:14:08,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:14:08,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-18 16:14:08,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:14:08,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 269 [2021-12-18 16:14:08,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:14:08,264 INFO L134 CoverageAnalysis]: Checked inductivity of 801 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 801 trivial. 0 not checked. [2021-12-18 16:14:08,265 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 16:14:08,265 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2086322755] [2021-12-18 16:14:08,265 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2086322755] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 16:14:08,265 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 16:14:08,265 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-12-18 16:14:08,265 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1791393792] [2021-12-18 16:14:08,265 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 16:14:08,266 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-12-18 16:14:08,266 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 16:14:08,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-12-18 16:14:08,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2021-12-18 16:14:08,266 INFO L87 Difference]: Start difference. First operand 4332 states and 5491 transitions. Second operand has 10 states, 10 states have (on average 9.4) internal successors, (94), 4 states have internal predecessors, (94), 2 states have call successors, (35), 8 states have call predecessors, (35), 1 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2021-12-18 16:14:13,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 16:14:13,923 INFO L93 Difference]: Finished difference Result 7273 states and 9178 transitions. [2021-12-18 16:14:13,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-12-18 16:14:13,924 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.4) internal successors, (94), 4 states have internal predecessors, (94), 2 states have call successors, (35), 8 states have call predecessors, (35), 1 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) Word has length 283 [2021-12-18 16:14:13,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 16:14:13,938 INFO L225 Difference]: With dead ends: 7273 [2021-12-18 16:14:13,938 INFO L226 Difference]: Without dead ends: 7271 [2021-12-18 16:14:13,941 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 102 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=175, Invalid=377, Unknown=0, NotChecked=0, Total=552 [2021-12-18 16:14:13,942 INFO L933 BasicCegarLoop]: 1907 mSDtfsCounter, 4580 mSDsluCounter, 5889 mSDsCounter, 0 mSdLazyCounter, 4072 mSolverCounterSat, 3977 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4790 SdHoareTripleChecker+Valid, 7796 SdHoareTripleChecker+Invalid, 8049 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3977 IncrementalHoareTripleChecker+Valid, 4072 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2021-12-18 16:14:13,942 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4790 Valid, 7796 Invalid, 8049 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3977 Valid, 4072 Invalid, 0 Unknown, 0 Unchecked, 5.0s Time] [2021-12-18 16:14:13,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7271 states. [2021-12-18 16:14:14,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7271 to 7156. [2021-12-18 16:14:14,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7156 states, 4580 states have (on average 1.1724890829694323) internal successors, (5370), 4711 states have internal predecessors, (5370), 1820 states have call successors, (1820), 759 states have call predecessors, (1820), 751 states have return successors, (1837), 1777 states have call predecessors, (1837), 1818 states have call successors, (1837) [2021-12-18 16:14:14,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7156 states to 7156 states and 9027 transitions. [2021-12-18 16:14:14,376 INFO L78 Accepts]: Start accepts. Automaton has 7156 states and 9027 transitions. Word has length 283 [2021-12-18 16:14:14,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 16:14:14,376 INFO L470 AbstractCegarLoop]: Abstraction has 7156 states and 9027 transitions. [2021-12-18 16:14:14,376 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.4) internal successors, (94), 4 states have internal predecessors, (94), 2 states have call successors, (35), 8 states have call predecessors, (35), 1 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2021-12-18 16:14:14,376 INFO L276 IsEmpty]: Start isEmpty. Operand 7156 states and 9027 transitions. [2021-12-18 16:14:14,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 302 [2021-12-18 16:14:14,379 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 16:14:14,380 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 14, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 16:14:14,380 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2021-12-18 16:14:14,380 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting ldv_linux_usb_urb_usb_free_urbErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2021-12-18 16:14:14,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 16:14:14,380 INFO L85 PathProgramCache]: Analyzing trace with hash -1715553, now seen corresponding path program 1 times [2021-12-18 16:14:14,380 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 16:14:14,381 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1310694547] [2021-12-18 16:14:14,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 16:14:14,381 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 16:14:14,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:14:14,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 16:14:14,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:14:14,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-18 16:14:14,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:14:14,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-12-18 16:14:14,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:14:14,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-18 16:14:14,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:14:14,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-12-18 16:14:14,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:14:14,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:14:14,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:14:14,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:14:14,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:14:14,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 16:14:14,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:14:14,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-18 16:14:14,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:14:14,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:14:14,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:14:14,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:14:14,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:14:14,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 16:14:14,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:14:14,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-12-18 16:14:14,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:14:14,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:14:14,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:14:14,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:14:14,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:14:14,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 16:14:14,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:14:14,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-12-18 16:14:14,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:14:14,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:14:14,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:14:14,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:14:14,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:14:14,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 16:14:14,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:14:14,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-12-18 16:14:14,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:14:14,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:14:14,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:14:14,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:14:14,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:14:14,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 16:14:14,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:14:14,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-12-18 16:14:14,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:14:14,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-12-18 16:14:14,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:14:14,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-12-18 16:14:14,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:14:14,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:14:14,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:14:14,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:14:14,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:14:14,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 16:14:14,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:14:14,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-12-18 16:14:14,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:14:14,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:14:14,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:14:14,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2021-12-18 16:14:14,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:14:14,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2021-12-18 16:14:14,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:14:14,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2021-12-18 16:14:14,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:14:14,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2021-12-18 16:14:14,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:14:14,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2021-12-18 16:14:14,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:14:14,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2021-12-18 16:14:14,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:14:14,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:14:14,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:14:14,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:14:14,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:14:14,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-18 16:14:14,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:14:14,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2021-12-18 16:14:14,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:14:14,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2021-12-18 16:14:14,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:14:14,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:14:14,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:14:14,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:14:14,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:14:14,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-18 16:14:14,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:14:14,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2021-12-18 16:14:14,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:14:14,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 276 [2021-12-18 16:14:14,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:14:14,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 281 [2021-12-18 16:14:14,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:14:14,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 286 [2021-12-18 16:14:14,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:14:14,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 291 [2021-12-18 16:14:14,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:14:14,775 INFO L134 CoverageAnalysis]: Checked inductivity of 519 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 519 trivial. 0 not checked. [2021-12-18 16:14:14,775 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 16:14:14,775 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1310694547] [2021-12-18 16:14:14,776 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1310694547] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 16:14:14,776 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 16:14:14,776 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2021-12-18 16:14:14,776 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [358884332] [2021-12-18 16:14:14,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 16:14:14,778 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2021-12-18 16:14:14,778 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 16:14:14,778 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-12-18 16:14:14,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=208, Unknown=0, NotChecked=0, Total=240 [2021-12-18 16:14:14,779 INFO L87 Difference]: Start difference. First operand 7156 states and 9027 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 8 states have internal predecessors, (117), 3 states have call successors, (42), 9 states have call predecessors, (42), 2 states have return successors, (39), 4 states have call predecessors, (39), 3 states have call successors, (39) [2021-12-18 16:14:23,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 16:14:23,113 INFO L93 Difference]: Finished difference Result 14297 states and 18035 transitions. [2021-12-18 16:14:23,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-12-18 16:14:23,113 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 8 states have internal predecessors, (117), 3 states have call successors, (42), 9 states have call predecessors, (42), 2 states have return successors, (39), 4 states have call predecessors, (39), 3 states have call successors, (39) Word has length 301 [2021-12-18 16:14:23,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 16:14:23,134 INFO L225 Difference]: With dead ends: 14297 [2021-12-18 16:14:23,134 INFO L226 Difference]: Without dead ends: 7271 [2021-12-18 16:14:23,149 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 141 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=216, Invalid=776, Unknown=0, NotChecked=0, Total=992 [2021-12-18 16:14:23,149 INFO L933 BasicCegarLoop]: 1524 mSDtfsCounter, 2409 mSDsluCounter, 9898 mSDsCounter, 0 mSdLazyCounter, 6304 mSolverCounterSat, 2942 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2409 SdHoareTripleChecker+Valid, 11422 SdHoareTripleChecker+Invalid, 9246 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2942 IncrementalHoareTripleChecker+Valid, 6304 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.5s IncrementalHoareTripleChecker+Time [2021-12-18 16:14:23,149 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2409 Valid, 11422 Invalid, 9246 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2942 Valid, 6304 Invalid, 0 Unknown, 0 Unchecked, 7.5s Time] [2021-12-18 16:14:23,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7271 states. [2021-12-18 16:14:23,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7271 to 7170. [2021-12-18 16:14:23,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7170 states, 4590 states have (on average 1.1721132897603486) internal successors, (5380), 4721 states have internal predecessors, (5380), 1822 states have call successors, (1822), 759 states have call predecessors, (1822), 753 states have return successors, (1842), 1780 states have call predecessors, (1842), 1820 states have call successors, (1842) [2021-12-18 16:14:23,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7170 states to 7170 states and 9044 transitions. [2021-12-18 16:14:23,624 INFO L78 Accepts]: Start accepts. Automaton has 7170 states and 9044 transitions. Word has length 301 [2021-12-18 16:14:23,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 16:14:23,624 INFO L470 AbstractCegarLoop]: Abstraction has 7170 states and 9044 transitions. [2021-12-18 16:14:23,625 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 8 states have internal predecessors, (117), 3 states have call successors, (42), 9 states have call predecessors, (42), 2 states have return successors, (39), 4 states have call predecessors, (39), 3 states have call successors, (39) [2021-12-18 16:14:23,625 INFO L276 IsEmpty]: Start isEmpty. Operand 7170 states and 9044 transitions. [2021-12-18 16:14:23,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 312 [2021-12-18 16:14:23,628 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 16:14:23,628 INFO L514 BasicCegarLoop]: trace histogram [19, 19, 19, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 16:14:23,628 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2021-12-18 16:14:23,628 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2021-12-18 16:14:23,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 16:14:23,629 INFO L85 PathProgramCache]: Analyzing trace with hash 275809966, now seen corresponding path program 1 times [2021-12-18 16:14:23,629 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 16:14:23,629 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [777200193] [2021-12-18 16:14:23,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 16:14:23,629 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 16:14:23,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:14:23,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 16:14:23,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:14:23,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-18 16:14:23,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:14:23,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-12-18 16:14:23,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:14:23,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-18 16:14:23,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:14:23,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-12-18 16:14:23,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:14:23,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:14:23,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:14:23,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:14:23,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:14:23,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 16:14:23,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:14:23,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-18 16:14:23,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:14:23,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:14:23,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:14:23,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:14:23,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:14:23,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 16:14:23,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:14:23,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-12-18 16:14:23,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:14:23,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:14:23,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:14:23,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:14:23,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:14:23,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 16:14:23,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:14:23,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-12-18 16:14:23,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:14:23,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:14:23,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:14:23,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:14:23,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:14:23,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 16:14:23,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:14:23,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-12-18 16:14:23,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:14:23,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:14:23,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:14:23,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:14:23,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:14:23,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 16:14:23,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:14:23,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-12-18 16:14:23,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:14:23,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-12-18 16:14:23,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:14:23,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-12-18 16:14:23,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:14:23,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2021-12-18 16:14:23,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:14:23,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2021-12-18 16:14:23,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:14:23,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:14:23,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:14:23,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2021-12-18 16:14:23,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:14:23,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2021-12-18 16:14:23,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:14:23,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2021-12-18 16:14:23,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:14:23,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2021-12-18 16:14:23,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:14:23,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2021-12-18 16:14:23,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:14:23,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:14:23,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:14:23,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:14:23,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:14:23,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 16:14:23,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:14:23,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2021-12-18 16:14:23,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:14:23,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:14:23,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:14:23,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:14:23,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:14:23,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:14:23,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:14:23,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-18 16:14:23,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:14:23,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-18 16:14:23,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:14:23,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:14:23,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:14:23,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:14:23,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:14:23,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-18 16:14:23,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:14:23,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 269 [2021-12-18 16:14:23,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:14:23,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 277 [2021-12-18 16:14:23,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:14:23,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:14:23,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:14:23,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-12-18 16:14:23,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:14:23,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-18 16:14:23,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:14:23,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 300 [2021-12-18 16:14:23,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:14:23,944 INFO L134 CoverageAnalysis]: Checked inductivity of 879 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 877 trivial. 0 not checked. [2021-12-18 16:14:23,944 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 16:14:23,944 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [777200193] [2021-12-18 16:14:23,945 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [777200193] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 16:14:23,945 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 16:14:23,945 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-18 16:14:23,945 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2135773560] [2021-12-18 16:14:23,945 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 16:14:23,946 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-12-18 16:14:23,946 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 16:14:23,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-12-18 16:14:23,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2021-12-18 16:14:23,948 INFO L87 Difference]: Start difference. First operand 7170 states and 9044 transitions. Second operand has 11 states, 11 states have (on average 9.545454545454545) internal successors, (105), 4 states have internal predecessors, (105), 3 states have call successors, (41), 9 states have call predecessors, (41), 2 states have return successors, (38), 2 states have call predecessors, (38), 3 states have call successors, (38) [2021-12-18 16:14:29,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 16:14:29,964 INFO L93 Difference]: Finished difference Result 7263 states and 9173 transitions. [2021-12-18 16:14:29,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-12-18 16:14:29,964 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 9.545454545454545) internal successors, (105), 4 states have internal predecessors, (105), 3 states have call successors, (41), 9 states have call predecessors, (41), 2 states have return successors, (38), 2 states have call predecessors, (38), 3 states have call successors, (38) Word has length 311 [2021-12-18 16:14:29,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 16:14:29,983 INFO L225 Difference]: With dead ends: 7263 [2021-12-18 16:14:29,983 INFO L226 Difference]: Without dead ends: 7261 [2021-12-18 16:14:29,987 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 109 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 97 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=182, Invalid=418, Unknown=0, NotChecked=0, Total=600 [2021-12-18 16:14:29,987 INFO L933 BasicCegarLoop]: 1545 mSDtfsCounter, 2258 mSDsluCounter, 5650 mSDsCounter, 0 mSdLazyCounter, 4361 mSolverCounterSat, 2525 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2270 SdHoareTripleChecker+Valid, 7195 SdHoareTripleChecker+Invalid, 6886 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2525 IncrementalHoareTripleChecker+Valid, 4361 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2021-12-18 16:14:29,987 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2270 Valid, 7195 Invalid, 6886 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2525 Valid, 4361 Invalid, 0 Unknown, 0 Unchecked, 5.4s Time] [2021-12-18 16:14:29,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7261 states. [2021-12-18 16:14:30,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7261 to 7168. [2021-12-18 16:14:30,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7168 states, 4589 states have (on average 1.16910002179124) internal successors, (5365), 4719 states have internal predecessors, (5365), 1822 states have call successors, (1822), 759 states have call predecessors, (1822), 753 states have return successors, (1842), 1780 states have call predecessors, (1842), 1820 states have call successors, (1842) [2021-12-18 16:14:30,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7168 states to 7168 states and 9029 transitions. [2021-12-18 16:14:30,469 INFO L78 Accepts]: Start accepts. Automaton has 7168 states and 9029 transitions. Word has length 311 [2021-12-18 16:14:30,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 16:14:30,470 INFO L470 AbstractCegarLoop]: Abstraction has 7168 states and 9029 transitions. [2021-12-18 16:14:30,470 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 9.545454545454545) internal successors, (105), 4 states have internal predecessors, (105), 3 states have call successors, (41), 9 states have call predecessors, (41), 2 states have return successors, (38), 2 states have call predecessors, (38), 3 states have call successors, (38) [2021-12-18 16:14:30,470 INFO L276 IsEmpty]: Start isEmpty. Operand 7168 states and 9029 transitions. [2021-12-18 16:14:30,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 323 [2021-12-18 16:14:30,474 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 16:14:30,474 INFO L514 BasicCegarLoop]: trace histogram [16, 16, 16, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 16:14:30,474 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2021-12-18 16:14:30,474 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting ldv_linux_usb_urb_usb_free_urbErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2021-12-18 16:14:30,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 16:14:30,475 INFO L85 PathProgramCache]: Analyzing trace with hash -533248846, now seen corresponding path program 1 times [2021-12-18 16:14:30,475 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 16:14:30,475 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1355877621] [2021-12-18 16:14:30,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 16:14:30,475 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 16:14:30,524 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-18 16:14:30,524 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1108956395] [2021-12-18 16:14:30,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 16:14:30,525 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-18 16:14:30,525 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-18 16:14:30,526 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-18 16:14:30,527 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-12-18 16:14:31,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:14:31,291 INFO L263 TraceCheckSpWp]: Trace formula consists of 2996 conjuncts, 8 conjunts are in the unsatisfiable core [2021-12-18 16:14:31,297 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-18 16:14:31,731 INFO L134 CoverageAnalysis]: Checked inductivity of 650 backedges. 121 proven. 0 refuted. 0 times theorem prover too weak. 529 trivial. 0 not checked. [2021-12-18 16:14:31,731 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-18 16:14:31,731 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 16:14:31,731 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1355877621] [2021-12-18 16:14:31,732 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-12-18 16:14:31,732 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1108956395] [2021-12-18 16:14:31,732 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1108956395] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 16:14:31,732 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 16:14:31,732 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-18 16:14:31,732 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1529964650] [2021-12-18 16:14:31,732 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 16:14:31,733 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 16:14:31,733 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 16:14:31,733 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 16:14:31,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-18 16:14:31,734 INFO L87 Difference]: Start difference. First operand 7168 states and 9029 transitions. Second operand has 6 states, 6 states have (on average 21.666666666666668) internal successors, (130), 6 states have internal predecessors, (130), 3 states have call successors, (46), 2 states have call predecessors, (46), 3 states have return successors, (43), 3 states have call predecessors, (43), 3 states have call successors, (43) [2021-12-18 16:14:32,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 16:14:32,697 INFO L93 Difference]: Finished difference Result 16897 states and 22075 transitions. [2021-12-18 16:14:32,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-18 16:14:32,697 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 21.666666666666668) internal successors, (130), 6 states have internal predecessors, (130), 3 states have call successors, (46), 2 states have call predecessors, (46), 3 states have return successors, (43), 3 states have call predecessors, (43), 3 states have call successors, (43) Word has length 322 [2021-12-18 16:14:32,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 16:14:32,723 INFO L225 Difference]: With dead ends: 16897 [2021-12-18 16:14:32,724 INFO L226 Difference]: Without dead ends: 9774 [2021-12-18 16:14:32,740 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 323 GetRequests, 317 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-12-18 16:14:32,741 INFO L933 BasicCegarLoop]: 1817 mSDtfsCounter, 676 mSDsluCounter, 6904 mSDsCounter, 0 mSdLazyCounter, 206 mSolverCounterSat, 318 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 676 SdHoareTripleChecker+Valid, 8721 SdHoareTripleChecker+Invalid, 524 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 318 IncrementalHoareTripleChecker+Valid, 206 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-12-18 16:14:32,741 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [676 Valid, 8721 Invalid, 524 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [318 Valid, 206 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-12-18 16:14:32,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9774 states. [2021-12-18 16:14:33,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9774 to 7136. [2021-12-18 16:14:33,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7136 states, 4572 states have (on average 1.1690726159230096) internal successors, (5345), 4699 states have internal predecessors, (5345), 1810 states have call successors, (1810), 756 states have call predecessors, (1810), 750 states have return successors, (1830), 1769 states have call predecessors, (1830), 1808 states have call successors, (1830) [2021-12-18 16:14:33,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7136 states to 7136 states and 8985 transitions. [2021-12-18 16:14:33,276 INFO L78 Accepts]: Start accepts. Automaton has 7136 states and 8985 transitions. Word has length 322 [2021-12-18 16:14:33,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 16:14:33,276 INFO L470 AbstractCegarLoop]: Abstraction has 7136 states and 8985 transitions. [2021-12-18 16:14:33,276 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 21.666666666666668) internal successors, (130), 6 states have internal predecessors, (130), 3 states have call successors, (46), 2 states have call predecessors, (46), 3 states have return successors, (43), 3 states have call predecessors, (43), 3 states have call successors, (43) [2021-12-18 16:14:33,276 INFO L276 IsEmpty]: Start isEmpty. Operand 7136 states and 8985 transitions. [2021-12-18 16:14:33,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 323 [2021-12-18 16:14:33,279 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 16:14:33,279 INFO L514 BasicCegarLoop]: trace histogram [16, 16, 16, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 16:14:33,305 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2021-12-18 16:14:33,491 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2021-12-18 16:14:33,492 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting ldv_linux_usb_urb_usb_free_urbErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2021-12-18 16:14:33,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 16:14:33,492 INFO L85 PathProgramCache]: Analyzing trace with hash -1176944588, now seen corresponding path program 1 times [2021-12-18 16:14:33,492 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 16:14:33,492 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1577315492] [2021-12-18 16:14:33,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 16:14:33,492 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 16:14:33,560 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-18 16:14:33,560 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2061614673] [2021-12-18 16:14:33,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 16:14:33,560 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-18 16:14:33,560 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-18 16:14:33,561 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-18 16:14:33,562 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-12-18 16:14:34,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:14:34,529 INFO L263 TraceCheckSpWp]: Trace formula consists of 2994 conjuncts, 34 conjunts are in the unsatisfiable core [2021-12-18 16:14:34,548 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-18 16:14:35,014 INFO L134 CoverageAnalysis]: Checked inductivity of 650 backedges. 336 proven. 3 refuted. 0 times theorem prover too weak. 311 trivial. 0 not checked. [2021-12-18 16:14:35,015 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-18 16:14:35,567 INFO L134 CoverageAnalysis]: Checked inductivity of 650 backedges. 18 proven. 51 refuted. 0 times theorem prover too weak. 581 trivial. 0 not checked. [2021-12-18 16:14:35,568 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 16:14:35,568 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1577315492] [2021-12-18 16:14:35,568 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-12-18 16:14:35,568 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2061614673] [2021-12-18 16:14:35,568 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2061614673] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-18 16:14:35,568 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-12-18 16:14:35,568 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 9 [2021-12-18 16:14:35,568 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [513792626] [2021-12-18 16:14:35,568 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-12-18 16:14:35,569 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-18 16:14:35,569 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 16:14:35,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-18 16:14:35,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-12-18 16:14:35,569 INFO L87 Difference]: Start difference. First operand 7136 states and 8985 transitions. Second operand has 9 states, 9 states have (on average 22.11111111111111) internal successors, (199), 8 states have internal predecessors, (199), 3 states have call successors, (85), 2 states have call predecessors, (85), 4 states have return successors, (83), 4 states have call predecessors, (83), 3 states have call successors, (83) [2021-12-18 16:14:36,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 16:14:36,508 INFO L93 Difference]: Finished difference Result 16868 states and 22041 transitions. [2021-12-18 16:14:36,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-18 16:14:36,509 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 22.11111111111111) internal successors, (199), 8 states have internal predecessors, (199), 3 states have call successors, (85), 2 states have call predecessors, (85), 4 states have return successors, (83), 4 states have call predecessors, (83), 3 states have call successors, (83) Word has length 322 [2021-12-18 16:14:36,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 16:14:36,538 INFO L225 Difference]: With dead ends: 16868 [2021-12-18 16:14:36,538 INFO L226 Difference]: Without dead ends: 9779 [2021-12-18 16:14:36,556 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 644 GetRequests, 632 SyntacticMatches, 3 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2021-12-18 16:14:36,557 INFO L933 BasicCegarLoop]: 2305 mSDtfsCounter, 447 mSDsluCounter, 15367 mSDsCounter, 0 mSdLazyCounter, 327 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 683 SdHoareTripleChecker+Valid, 17672 SdHoareTripleChecker+Invalid, 327 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 327 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-18 16:14:36,557 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [683 Valid, 17672 Invalid, 327 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 327 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-18 16:14:36,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9779 states. [2021-12-18 16:14:37,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9779 to 7136. [2021-12-18 16:14:37,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7136 states, 4572 states have (on average 1.168853893263342) internal successors, (5344), 4698 states have internal predecessors, (5344), 1810 states have call successors, (1810), 756 states have call predecessors, (1810), 750 states have return successors, (1830), 1769 states have call predecessors, (1830), 1808 states have call successors, (1830) [2021-12-18 16:14:37,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7136 states to 7136 states and 8984 transitions. [2021-12-18 16:14:37,082 INFO L78 Accepts]: Start accepts. Automaton has 7136 states and 8984 transitions. Word has length 322 [2021-12-18 16:14:37,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 16:14:37,083 INFO L470 AbstractCegarLoop]: Abstraction has 7136 states and 8984 transitions. [2021-12-18 16:14:37,083 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 22.11111111111111) internal successors, (199), 8 states have internal predecessors, (199), 3 states have call successors, (85), 2 states have call predecessors, (85), 4 states have return successors, (83), 4 states have call predecessors, (83), 3 states have call successors, (83) [2021-12-18 16:14:37,083 INFO L276 IsEmpty]: Start isEmpty. Operand 7136 states and 8984 transitions. [2021-12-18 16:14:37,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 327 [2021-12-18 16:14:37,088 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 16:14:37,088 INFO L514 BasicCegarLoop]: trace histogram [16, 16, 16, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 16:14:37,112 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2021-12-18 16:14:37,289 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-18 16:14:37,291 INFO L402 AbstractCegarLoop]: === Iteration 40 === Targeting ldv_linux_usb_urb_usb_free_urbErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2021-12-18 16:14:37,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 16:14:37,291 INFO L85 PathProgramCache]: Analyzing trace with hash -1636572303, now seen corresponding path program 1 times [2021-12-18 16:14:37,291 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 16:14:37,292 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1276672183] [2021-12-18 16:14:37,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 16:14:37,292 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 16:14:37,345 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-18 16:14:37,345 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1725478215] [2021-12-18 16:14:37,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 16:14:37,346 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-18 16:14:37,346 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-18 16:14:37,347 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-18 16:14:37,348 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-12-18 16:14:38,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:14:38,397 INFO L263 TraceCheckSpWp]: Trace formula consists of 3012 conjuncts, 40 conjunts are in the unsatisfiable core [2021-12-18 16:14:38,401 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-18 16:14:38,847 INFO L134 CoverageAnalysis]: Checked inductivity of 650 backedges. 251 proven. 3 refuted. 0 times theorem prover too weak. 396 trivial. 0 not checked. [2021-12-18 16:14:38,847 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-18 16:14:39,507 INFO L134 CoverageAnalysis]: Checked inductivity of 650 backedges. 6 proven. 63 refuted. 0 times theorem prover too weak. 581 trivial. 0 not checked. [2021-12-18 16:14:39,508 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 16:14:39,508 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1276672183] [2021-12-18 16:14:39,508 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-12-18 16:14:39,508 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1725478215] [2021-12-18 16:14:39,508 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1725478215] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-18 16:14:39,508 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-12-18 16:14:39,508 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 14 [2021-12-18 16:14:39,509 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [767136487] [2021-12-18 16:14:39,509 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-12-18 16:14:39,509 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-12-18 16:14:39,509 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 16:14:39,510 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-12-18 16:14:39,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2021-12-18 16:14:39,510 INFO L87 Difference]: Start difference. First operand 7136 states and 8984 transitions. Second operand has 14 states, 13 states have (on average 16.076923076923077) internal successors, (209), 12 states have internal predecessors, (209), 5 states have call successors, (91), 2 states have call predecessors, (91), 5 states have return successors, (90), 6 states have call predecessors, (90), 5 states have call successors, (90) [2021-12-18 16:14:40,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 16:14:40,800 INFO L93 Difference]: Finished difference Result 16873 states and 22047 transitions. [2021-12-18 16:14:40,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-18 16:14:40,800 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 16.076923076923077) internal successors, (209), 12 states have internal predecessors, (209), 5 states have call successors, (91), 2 states have call predecessors, (91), 5 states have return successors, (90), 6 states have call predecessors, (90), 5 states have call successors, (90) Word has length 326 [2021-12-18 16:14:40,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 16:14:40,823 INFO L225 Difference]: With dead ends: 16873 [2021-12-18 16:14:40,823 INFO L226 Difference]: Without dead ends: 9779 [2021-12-18 16:14:40,838 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 652 GetRequests, 637 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=196, Unknown=0, NotChecked=0, Total=240 [2021-12-18 16:14:40,838 INFO L933 BasicCegarLoop]: 2304 mSDtfsCounter, 901 mSDsluCounter, 19957 mSDsCounter, 0 mSdLazyCounter, 389 mSolverCounterSat, 240 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1140 SdHoareTripleChecker+Valid, 22261 SdHoareTripleChecker+Invalid, 629 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 240 IncrementalHoareTripleChecker+Valid, 389 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-12-18 16:14:40,839 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1140 Valid, 22261 Invalid, 629 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [240 Valid, 389 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-12-18 16:14:40,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9779 states. [2021-12-18 16:14:41,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9779 to 7136. [2021-12-18 16:14:41,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7136 states, 4572 states have (on average 1.1686351706036746) internal successors, (5343), 4697 states have internal predecessors, (5343), 1810 states have call successors, (1810), 756 states have call predecessors, (1810), 750 states have return successors, (1830), 1769 states have call predecessors, (1830), 1808 states have call successors, (1830) [2021-12-18 16:14:41,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7136 states to 7136 states and 8983 transitions. [2021-12-18 16:14:41,434 INFO L78 Accepts]: Start accepts. Automaton has 7136 states and 8983 transitions. Word has length 326 [2021-12-18 16:14:41,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 16:14:41,434 INFO L470 AbstractCegarLoop]: Abstraction has 7136 states and 8983 transitions. [2021-12-18 16:14:41,434 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 16.076923076923077) internal successors, (209), 12 states have internal predecessors, (209), 5 states have call successors, (91), 2 states have call predecessors, (91), 5 states have return successors, (90), 6 states have call predecessors, (90), 5 states have call successors, (90) [2021-12-18 16:14:41,434 INFO L276 IsEmpty]: Start isEmpty. Operand 7136 states and 8983 transitions. [2021-12-18 16:14:41,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 331 [2021-12-18 16:14:41,437 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 16:14:41,437 INFO L514 BasicCegarLoop]: trace histogram [16, 16, 16, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 16:14:41,461 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-12-18 16:14:41,638 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2021-12-18 16:14:41,639 INFO L402 AbstractCegarLoop]: === Iteration 41 === Targeting ldv_linux_usb_urb_usb_free_urbErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2021-12-18 16:14:41,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 16:14:41,639 INFO L85 PathProgramCache]: Analyzing trace with hash -1740522220, now seen corresponding path program 1 times [2021-12-18 16:14:41,639 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 16:14:41,639 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1461952624] [2021-12-18 16:14:41,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 16:14:41,640 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 16:14:41,689 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-18 16:14:41,689 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1345764525] [2021-12-18 16:14:41,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 16:14:41,689 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-18 16:14:41,690 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-18 16:14:41,690 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-18 16:14:41,691 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-12-18 16:23:19,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-18 16:23:19,812 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. Killed by 15