./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--video--fbdev--udlfb.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--video--fbdev--udlfb.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 81dbe8069ce4dfce1c2f5ecd6b7071863ebf3cc1894dcf2fe187946b9d9f58fb --- Real Ultimate output --- This is Ultimate 0.2.2-tmp.no-commuhash-c3fed41 [2021-12-18 16:24:09,494 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-18 16:24:09,496 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-18 16:24:09,553 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-18 16:24:09,556 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-18 16:24:09,557 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-18 16:24:09,558 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-18 16:24:09,561 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-18 16:24:09,565 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-18 16:24:09,565 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-18 16:24:09,567 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-18 16:24:09,572 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-18 16:24:09,573 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-18 16:24:09,576 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-18 16:24:09,577 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-18 16:24:09,579 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-18 16:24:09,580 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-18 16:24:09,584 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-18 16:24:09,585 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-18 16:24:09,586 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-18 16:24:09,589 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-18 16:24:09,590 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-18 16:24:09,591 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-18 16:24:09,592 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-18 16:24:09,594 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-18 16:24:09,598 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-18 16:24:09,598 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-18 16:24:09,599 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-18 16:24:09,600 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-18 16:24:09,601 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-18 16:24:09,601 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-18 16:24:09,602 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-18 16:24:09,603 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-18 16:24:09,604 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-18 16:24:09,605 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-18 16:24:09,605 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-18 16:24:09,606 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-18 16:24:09,606 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-18 16:24:09,607 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-18 16:24:09,607 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-18 16:24:09,608 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-18 16:24:09,610 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-18 16:24:09,637 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-18 16:24:09,637 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-18 16:24:09,638 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-18 16:24:09,638 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-18 16:24:09,639 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-18 16:24:09,639 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-18 16:24:09,640 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-18 16:24:09,640 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-18 16:24:09,640 INFO L138 SettingsManager]: * Use SBE=true [2021-12-18 16:24:09,640 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-18 16:24:09,641 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-18 16:24:09,641 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-18 16:24:09,641 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-18 16:24:09,641 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-18 16:24:09,642 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-18 16:24:09,642 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-18 16:24:09,642 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-18 16:24:09,642 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-18 16:24:09,642 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-18 16:24:09,643 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-18 16:24:09,643 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-18 16:24:09,643 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-18 16:24:09,643 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-18 16:24:09,643 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-18 16:24:09,643 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-18 16:24:09,644 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-18 16:24:09,644 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-18 16:24:09,644 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-18 16:24:09,644 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-18 16:24:09,644 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-18 16:24:09,645 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-18 16:24:09,645 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 81dbe8069ce4dfce1c2f5ecd6b7071863ebf3cc1894dcf2fe187946b9d9f58fb [2021-12-18 16:24:09,844 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-18 16:24:09,866 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-18 16:24:09,868 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-18 16:24:09,870 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-18 16:24:09,871 INFO L275 PluginConnector]: CDTParser initialized [2021-12-18 16:24:09,872 INFO L432 ainManager$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--video--fbdev--udlfb.ko.cil.i [2021-12-18 16:24:09,934 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ab1fd9e9a/0efc39c625fe4737b08d851d315549a8/FLAGc6032930f [2021-12-18 16:24:10,683 INFO L306 CDTParser]: Found 1 translation units. [2021-12-18 16:24:10,684 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i [2021-12-18 16:24:10,735 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ab1fd9e9a/0efc39c625fe4737b08d851d315549a8/FLAGc6032930f [2021-12-18 16:24:10,919 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ab1fd9e9a/0efc39c625fe4737b08d851d315549a8 [2021-12-18 16:24:10,921 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-18 16:24:10,922 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-18 16:24:10,923 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-18 16:24:10,923 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-18 16:24:10,929 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-18 16:24:10,930 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 04:24:10" (1/1) ... [2021-12-18 16:24:10,931 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@77970ad8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 04:24:10, skipping insertion in model container [2021-12-18 16:24:10,931 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 04:24:10" (1/1) ... [2021-12-18 16:24:10,937 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-18 16:24:11,048 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-18 16:24:13,482 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[375016,375029] [2021-12-18 16:24:13,485 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[375161,375174] [2021-12-18 16:24:13,486 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[375307,375320] [2021-12-18 16:24:13,486 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[375472,375485] [2021-12-18 16:24:13,486 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[375630,375643] [2021-12-18 16:24:13,487 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[375788,375801] [2021-12-18 16:24:13,487 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[375946,375959] [2021-12-18 16:24:13,488 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[376106,376119] [2021-12-18 16:24:13,488 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[376265,376278] [2021-12-18 16:24:13,488 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[376404,376417] [2021-12-18 16:24:13,489 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[376546,376559] [2021-12-18 16:24:13,489 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[376695,376708] [2021-12-18 16:24:13,490 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[376834,376847] [2021-12-18 16:24:13,490 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[376989,377002] [2021-12-18 16:24:13,490 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[377149,377162] [2021-12-18 16:24:13,491 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[377300,377313] [2021-12-18 16:24:13,495 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[377451,377464] [2021-12-18 16:24:13,496 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[377603,377616] [2021-12-18 16:24:13,496 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[377752,377765] [2021-12-18 16:24:13,496 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[377900,377913] [2021-12-18 16:24:13,497 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[378057,378070] [2021-12-18 16:24:13,497 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[378206,378219] [2021-12-18 16:24:13,498 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[378362,378375] [2021-12-18 16:24:13,498 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[378515,378528] [2021-12-18 16:24:13,503 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[378661,378674] [2021-12-18 16:24:13,504 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[378804,378817] [2021-12-18 16:24:13,504 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[378956,378969] [2021-12-18 16:24:13,505 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[379102,379115] [2021-12-18 16:24:13,505 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[379247,379260] [2021-12-18 16:24:13,506 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[379401,379414] [2021-12-18 16:24:13,507 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[379552,379565] [2021-12-18 16:24:13,508 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[379707,379720] [2021-12-18 16:24:13,508 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[379859,379872] [2021-12-18 16:24:13,508 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[380014,380027] [2021-12-18 16:24:13,509 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[380178,380191] [2021-12-18 16:24:13,509 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[380334,380347] [2021-12-18 16:24:13,510 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[380498,380511] [2021-12-18 16:24:13,511 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[380640,380653] [2021-12-18 16:24:13,511 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[380798,380811] [2021-12-18 16:24:13,512 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[380965,380978] [2021-12-18 16:24:13,512 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[381124,381137] [2021-12-18 16:24:13,513 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[381283,381296] [2021-12-18 16:24:13,513 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[381432,381445] [2021-12-18 16:24:13,513 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[381579,381592] [2021-12-18 16:24:13,514 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[381718,381731] [2021-12-18 16:24:13,514 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[381881,381894] [2021-12-18 16:24:13,514 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[382047,382060] [2021-12-18 16:24:13,516 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[382211,382224] [2021-12-18 16:24:13,516 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[382376,382389] [2021-12-18 16:24:13,516 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[382541,382554] [2021-12-18 16:24:13,517 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[382707,382720] [2021-12-18 16:24:13,518 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[382872,382885] [2021-12-18 16:24:13,518 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[383039,383052] [2021-12-18 16:24:13,519 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[383199,383212] [2021-12-18 16:24:13,519 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[383361,383374] [2021-12-18 16:24:13,519 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[383520,383533] [2021-12-18 16:24:13,520 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[383666,383679] [2021-12-18 16:24:13,520 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[383809,383822] [2021-12-18 16:24:13,520 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[383953,383966] [2021-12-18 16:24:13,521 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[384096,384109] [2021-12-18 16:24:13,521 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[384240,384253] [2021-12-18 16:24:13,522 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[384381,384394] [2021-12-18 16:24:13,522 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[384519,384532] [2021-12-18 16:24:13,523 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[384677,384690] [2021-12-18 16:24:13,523 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[384836,384849] [2021-12-18 16:24:13,524 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[384992,385005] [2021-12-18 16:24:13,524 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[385141,385154] [2021-12-18 16:24:13,524 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[385293,385306] [2021-12-18 16:24:13,525 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[385444,385457] [2021-12-18 16:24:13,525 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[385593,385606] [2021-12-18 16:24:13,526 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[385745,385758] [2021-12-18 16:24:13,526 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[385893,385906] [2021-12-18 16:24:13,526 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[386046,386059] [2021-12-18 16:24:13,527 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[386197,386210] [2021-12-18 16:24:13,527 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[386347,386360] [2021-12-18 16:24:13,527 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[386494,386507] [2021-12-18 16:24:13,528 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[386645,386658] [2021-12-18 16:24:13,528 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[386796,386809] [2021-12-18 16:24:13,529 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[386944,386957] [2021-12-18 16:24:13,529 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[387110,387123] [2021-12-18 16:24:13,530 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[387279,387292] [2021-12-18 16:24:13,531 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[387446,387459] [2021-12-18 16:24:13,531 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[387614,387627] [2021-12-18 16:24:13,532 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[387764,387777] [2021-12-18 16:24:13,532 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[387911,387924] [2021-12-18 16:24:13,533 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[388072,388085] [2021-12-18 16:24:13,533 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[388242,388255] [2021-12-18 16:24:13,533 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[388404,388417] [2021-12-18 16:24:13,549 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-18 16:24:13,593 INFO L203 MainTranslator]: Completed pre-run [2021-12-18 16:24:13,849 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[375016,375029] [2021-12-18 16:24:13,850 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[375161,375174] [2021-12-18 16:24:13,850 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[375307,375320] [2021-12-18 16:24:13,851 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[375472,375485] [2021-12-18 16:24:13,851 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[375630,375643] [2021-12-18 16:24:13,852 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[375788,375801] [2021-12-18 16:24:13,853 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[375946,375959] [2021-12-18 16:24:13,853 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[376106,376119] [2021-12-18 16:24:13,854 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[376265,376278] [2021-12-18 16:24:13,855 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[376404,376417] [2021-12-18 16:24:13,855 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[376546,376559] [2021-12-18 16:24:13,856 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[376695,376708] [2021-12-18 16:24:13,856 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[376834,376847] [2021-12-18 16:24:13,857 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[376989,377002] [2021-12-18 16:24:13,857 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[377149,377162] [2021-12-18 16:24:13,857 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[377300,377313] [2021-12-18 16:24:13,858 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[377451,377464] [2021-12-18 16:24:13,858 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[377603,377616] [2021-12-18 16:24:13,858 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[377752,377765] [2021-12-18 16:24:13,859 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[377900,377913] [2021-12-18 16:24:13,859 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[378057,378070] [2021-12-18 16:24:13,860 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[378206,378219] [2021-12-18 16:24:13,860 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[378362,378375] [2021-12-18 16:24:13,861 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[378515,378528] [2021-12-18 16:24:13,861 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[378661,378674] [2021-12-18 16:24:13,861 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[378804,378817] [2021-12-18 16:24:13,861 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[378956,378969] [2021-12-18 16:24:13,862 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[379102,379115] [2021-12-18 16:24:13,862 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[379247,379260] [2021-12-18 16:24:13,862 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[379401,379414] [2021-12-18 16:24:13,863 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[379552,379565] [2021-12-18 16:24:13,863 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[379707,379720] [2021-12-18 16:24:13,864 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[379859,379872] [2021-12-18 16:24:13,864 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[380014,380027] [2021-12-18 16:24:13,864 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[380178,380191] [2021-12-18 16:24:13,865 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[380334,380347] [2021-12-18 16:24:13,865 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[380498,380511] [2021-12-18 16:24:13,865 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[380640,380653] [2021-12-18 16:24:13,866 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[380798,380811] [2021-12-18 16:24:13,866 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[380965,380978] [2021-12-18 16:24:13,867 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[381124,381137] [2021-12-18 16:24:13,868 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[381283,381296] [2021-12-18 16:24:13,868 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[381432,381445] [2021-12-18 16:24:13,868 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[381579,381592] [2021-12-18 16:24:13,869 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[381718,381731] [2021-12-18 16:24:13,869 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[381881,381894] [2021-12-18 16:24:13,869 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[382047,382060] [2021-12-18 16:24:13,870 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[382211,382224] [2021-12-18 16:24:13,873 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[382376,382389] [2021-12-18 16:24:13,874 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[382541,382554] [2021-12-18 16:24:13,874 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[382707,382720] [2021-12-18 16:24:13,874 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[382872,382885] [2021-12-18 16:24:13,875 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[383039,383052] [2021-12-18 16:24:13,875 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[383199,383212] [2021-12-18 16:24:13,875 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[383361,383374] [2021-12-18 16:24:13,876 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[383520,383533] [2021-12-18 16:24:13,876 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[383666,383679] [2021-12-18 16:24:13,877 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[383809,383822] [2021-12-18 16:24:13,877 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[383953,383966] [2021-12-18 16:24:13,878 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[384096,384109] [2021-12-18 16:24:13,881 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[384240,384253] [2021-12-18 16:24:13,882 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[384381,384394] [2021-12-18 16:24:13,882 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[384519,384532] [2021-12-18 16:24:13,885 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[384677,384690] [2021-12-18 16:24:13,885 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[384836,384849] [2021-12-18 16:24:13,885 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[384992,385005] [2021-12-18 16:24:13,886 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[385141,385154] [2021-12-18 16:24:13,886 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[385293,385306] [2021-12-18 16:24:13,887 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[385444,385457] [2021-12-18 16:24:13,888 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[385593,385606] [2021-12-18 16:24:13,888 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[385745,385758] [2021-12-18 16:24:13,888 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[385893,385906] [2021-12-18 16:24:13,892 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[386046,386059] [2021-12-18 16:24:13,893 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[386197,386210] [2021-12-18 16:24:13,893 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[386347,386360] [2021-12-18 16:24:13,893 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[386494,386507] [2021-12-18 16:24:13,893 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[386645,386658] [2021-12-18 16:24:13,894 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[386796,386809] [2021-12-18 16:24:13,895 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[386944,386957] [2021-12-18 16:24:13,895 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[387110,387123] [2021-12-18 16:24:13,896 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[387279,387292] [2021-12-18 16:24:13,896 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[387446,387459] [2021-12-18 16:24:13,897 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[387614,387627] [2021-12-18 16:24:13,897 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[387764,387777] [2021-12-18 16:24:13,897 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[387911,387924] [2021-12-18 16:24:13,898 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[388072,388085] [2021-12-18 16:24:13,898 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[388242,388255] [2021-12-18 16:24:13,898 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[388404,388417] [2021-12-18 16:24:13,902 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-18 16:24:14,114 INFO L208 MainTranslator]: Completed translation [2021-12-18 16:24:14,115 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 04:24:14 WrapperNode [2021-12-18 16:24:14,115 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-18 16:24:14,116 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-18 16:24:14,116 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-18 16:24:14,116 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-18 16:24:14,122 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 04:24:14" (1/1) ... [2021-12-18 16:24:14,223 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 04:24:14" (1/1) ... [2021-12-18 16:24:14,414 INFO L137 Inliner]: procedures = 635, calls = 2105, calls flagged for inlining = 297, calls inlined = 221, statements flattened = 4947 [2021-12-18 16:24:14,414 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-18 16:24:14,415 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-18 16:24:14,415 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-18 16:24:14,415 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-18 16:24:14,422 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 04:24:14" (1/1) ... [2021-12-18 16:24:14,423 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 04:24:14" (1/1) ... [2021-12-18 16:24:14,445 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 04:24:14" (1/1) ... [2021-12-18 16:24:14,446 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 04:24:14" (1/1) ... [2021-12-18 16:24:14,553 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 04:24:14" (1/1) ... [2021-12-18 16:24:14,575 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 04:24:14" (1/1) ... [2021-12-18 16:24:14,605 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 04:24:14" (1/1) ... [2021-12-18 16:24:14,635 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-18 16:24:14,636 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-18 16:24:14,636 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-18 16:24:14,636 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-18 16:24:14,638 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 04:24:14" (1/1) ... [2021-12-18 16:24:14,647 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-18 16:24:14,655 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-18 16:24:14,666 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 16:24:14,692 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 16:24:14,716 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2021-12-18 16:24:14,716 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2021-12-18 16:24:14,716 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_urb_completion [2021-12-18 16:24:14,717 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_urb_completion [2021-12-18 16:24:14,717 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_coherent_check_final_state [2021-12-18 16:24:14,717 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_coherent_check_final_state [2021-12-18 16:24:14,717 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-12-18 16:24:14,717 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-12-18 16:24:14,717 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_free_framebuffer_work [2021-12-18 16:24:14,717 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_free_framebuffer_work [2021-12-18 16:24:14,717 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dummy_resourceless_instance_callback_5_23 [2021-12-18 16:24:14,718 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dummy_resourceless_instance_callback_5_23 [2021-12-18 16:24:14,718 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-18 16:24:14,718 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-18 16:24:14,718 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_mmc_sdio_func_check_final_state [2021-12-18 16:24:14,718 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_mmc_sdio_func_check_final_state [2021-12-18 16:24:14,718 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-12-18 16:24:14,718 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-12-18 16:24:14,720 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_lock_lock_of_fb_info [2021-12-18 16:24:14,720 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_lock_lock_of_fb_info [2021-12-18 16:24:14,720 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_arch_io_check_final_state [2021-12-18 16:24:14,720 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_arch_io_check_final_state [2021-12-18 16:24:14,720 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_module_check_final_state [2021-12-18 16:24:14,720 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_module_check_final_state [2021-12-18 16:24:14,720 INFO L130 BoogieDeclarations]: Found specification of procedure metrics_reset_store [2021-12-18 16:24:14,721 INFO L138 BoogieDeclarations]: Found implementation of procedure metrics_reset_store [2021-12-18 16:24:14,721 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-12-18 16:24:14,721 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-12-18 16:24:14,721 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-12-18 16:24:14,721 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_spinlock_spin_lock_lock_of_urb_list [2021-12-18 16:24:14,721 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_spinlock_spin_lock_lock_of_urb_list [2021-12-18 16:24:14,721 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-12-18 16:24:14,721 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-12-18 16:24:14,722 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_queue_check_final_state [2021-12-18 16:24:14,722 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_queue_check_final_state [2021-12-18 16:24:14,722 INFO L130 BoogieDeclarations]: Found specification of procedure fb_add_videomode [2021-12-18 16:24:14,722 INFO L138 BoogieDeclarations]: Found implementation of procedure fb_add_videomode [2021-12-18 16:24:14,722 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-18 16:24:14,722 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_add [2021-12-18 16:24:14,722 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_add [2021-12-18 16:24:14,722 INFO L130 BoogieDeclarations]: Found specification of procedure fb_edid_to_monspecs [2021-12-18 16:24:14,723 INFO L138 BoogieDeclarations]: Found implementation of procedure fb_edid_to_monspecs [2021-12-18 16:24:14,723 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2021-12-18 16:24:14,723 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2021-12-18 16:24:14,723 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_setup_modes [2021-12-18 16:24:14,723 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_setup_modes [2021-12-18 16:24:14,723 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_request_check_final_state [2021-12-18 16:24:14,723 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_request_check_final_state [2021-12-18 16:24:14,723 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-12-18 16:24:14,724 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2021-12-18 16:24:14,724 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2021-12-18 16:24:14,724 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_vidreg_lock [2021-12-18 16:24:14,724 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_vidreg_lock [2021-12-18 16:24:14,724 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2021-12-18 16:24:14,724 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2021-12-18 16:24:14,783 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-12-18 16:24:14,783 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_in_interrupt_context [2021-12-18 16:24:14,783 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_in_interrupt_context [2021-12-18 16:24:14,783 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-12-18 16:24:14,783 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-12-18 16:24:14,783 INFO L130 BoogieDeclarations]: Found specification of procedure kref_get [2021-12-18 16:24:14,783 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_get [2021-12-18 16:24:14,783 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_bh_check_final_state [2021-12-18 16:24:14,784 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_bh_check_final_state [2021-12-18 16:24:14,784 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-18 16:24:14,784 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_genhd_check_final_state [2021-12-18 16:24:14,784 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_genhd_check_final_state [2021-12-18 16:24:14,784 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_after_alloc [2021-12-18 16:24:14,784 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_after_alloc [2021-12-18 16:24:14,784 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_free_framebuffer [2021-12-18 16:24:14,784 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_free_framebuffer [2021-12-18 16:24:14,784 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-12-18 16:24:14,784 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-12-18 16:24:14,784 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_register_reset_error_counter [2021-12-18 16:24:14,784 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_register_reset_error_counter [2021-12-18 16:24:14,785 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_var_color_format [2021-12-18 16:24:14,785 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_var_color_format [2021-12-18 16:24:14,785 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2021-12-18 16:24:14,785 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2021-12-18 16:24:14,785 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2021-12-18 16:24:14,785 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2021-12-18 16:24:14,785 INFO L130 BoogieDeclarations]: Found specification of procedure vfree [2021-12-18 16:24:14,785 INFO L138 BoogieDeclarations]: Found implementation of procedure vfree [2021-12-18 16:24:14,785 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2021-12-18 16:24:14,785 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2021-12-18 16:24:14,785 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_lib_idr_check_final_state [2021-12-18 16:24:14,785 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_lib_idr_check_final_state [2021-12-18 16:24:14,785 INFO L130 BoogieDeclarations]: Found specification of procedure kref_put [2021-12-18 16:24:14,785 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_put [2021-12-18 16:24:14,786 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_srcu_check_final_state [2021-12-18 16:24:14,786 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_srcu_check_final_state [2021-12-18 16:24:14,786 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-18 16:24:14,786 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_set_register_16 [2021-12-18 16:24:14,786 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_set_register_16 [2021-12-18 16:24:14,786 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-18 16:24:14,786 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-12-18 16:24:14,786 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-12-18 16:24:14,786 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-18 16:24:14,786 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-12-18 16:24:14,786 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-12-18 16:24:14,786 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2021-12-18 16:24:14,786 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2021-12-18 16:24:14,787 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_set_register [2021-12-18 16:24:14,787 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_set_register [2021-12-18 16:24:14,787 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-12-18 16:24:14,787 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-12-18 16:24:14,787 INFO L130 BoogieDeclarations]: Found specification of procedure usb_control_msg [2021-12-18 16:24:14,790 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_control_msg [2021-12-18 16:24:14,791 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_alloc_irq_check_alloc_flags [2021-12-18 16:24:14,791 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_alloc_irq_check_alloc_flags [2021-12-18 16:24:14,791 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_init_framebuffer_work [2021-12-18 16:24:14,791 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_init_framebuffer_work [2021-12-18 16:24:14,791 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2021-12-18 16:24:14,791 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2021-12-18 16:24:14,791 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-12-18 16:24:14,791 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-12-18 16:24:14,791 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_register_reset_error_counter [2021-12-18 16:24:14,791 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_register_reset_error_counter [2021-12-18 16:24:14,791 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_delayed_work [2021-12-18 16:24:14,791 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_delayed_work [2021-12-18 16:24:14,791 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_struct_fb_ops_dummy_resourceless_instance_5 [2021-12-18 16:24:14,791 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_struct_fb_ops_dummy_resourceless_instance_5 [2021-12-18 16:24:14,792 INFO L130 BoogieDeclarations]: Found specification of procedure interface_to_usbdev [2021-12-18 16:24:14,792 INFO L138 BoogieDeclarations]: Found implementation of procedure interface_to_usbdev [2021-12-18 16:24:14,792 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-18 16:24:14,792 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-18 16:24:14,792 INFO L130 BoogieDeclarations]: Found specification of procedure kref_sub [2021-12-18 16:24:14,792 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_sub [2021-12-18 16:24:14,792 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_submit_urb [2021-12-18 16:24:14,792 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_submit_urb [2021-12-18 16:24:14,792 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-12-18 16:24:14,792 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-18 16:24:14,792 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-12-18 16:24:14,792 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-12-18 16:24:14,792 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-12-18 16:24:14,792 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-12-18 16:24:14,793 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_vidreg_unlock [2021-12-18 16:24:14,793 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_vidreg_unlock [2021-12-18 16:24:14,793 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_ops_check_var [2021-12-18 16:24:14,793 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_ops_check_var [2021-12-18 16:24:14,793 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_is_valid_mode [2021-12-18 16:24:14,793 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_is_valid_mode [2021-12-18 16:24:14,793 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_set_register_lfsr16 [2021-12-18 16:24:14,793 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_set_register_lfsr16 [2021-12-18 16:24:14,793 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2021-12-18 16:24:14,793 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2021-12-18 16:24:14,793 INFO L130 BoogieDeclarations]: Found specification of procedure fb_destroy_modelist [2021-12-18 16:24:14,793 INFO L138 BoogieDeclarations]: Found implementation of procedure fb_destroy_modelist [2021-12-18 16:24:14,793 INFO L130 BoogieDeclarations]: Found specification of procedure list_del_init [2021-12-18 16:24:14,793 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del_init [2021-12-18 16:24:14,794 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2021-12-18 16:24:14,794 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2021-12-18 16:24:14,794 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-12-18 16:24:14,794 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-12-18 16:24:14,794 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_ops_release [2021-12-18 16:24:14,794 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_ops_release [2021-12-18 16:24:14,794 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_get_urb [2021-12-18 16:24:14,794 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_get_urb [2021-12-18 16:24:14,794 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_register_framebuffer_103 [2021-12-18 16:24:14,794 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_register_framebuffer_103 [2021-12-18 16:24:14,794 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_set_video_mode [2021-12-18 16:24:14,794 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_set_video_mode [2021-12-18 16:24:14,794 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_sock_check_final_state [2021-12-18 16:24:14,794 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_sock_check_final_state [2021-12-18 16:24:14,795 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_urb_usb_free_urb [2021-12-18 16:24:14,795 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_urb_usb_free_urb [2021-12-18 16:24:14,795 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_ops_blank [2021-12-18 16:24:14,795 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_ops_blank [2021-12-18 16:24:14,795 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_gadget_check_final_state [2021-12-18 16:24:14,797 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_gadget_check_final_state [2021-12-18 16:24:14,797 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-18 16:24:14,797 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-12-18 16:24:14,797 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-12-18 16:24:14,797 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_fs_sysfs_check_final_state [2021-12-18 16:24:14,797 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_fs_sysfs_check_final_state [2021-12-18 16:24:14,797 INFO L130 BoogieDeclarations]: Found specification of procedure get_cycles [2021-12-18 16:24:14,798 INFO L138 BoogieDeclarations]: Found implementation of procedure get_cycles [2021-12-18 16:24:14,798 INFO L130 BoogieDeclarations]: Found specification of procedure up [2021-12-18 16:24:14,798 INFO L138 BoogieDeclarations]: Found implementation of procedure up [2021-12-18 16:24:14,798 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-18 16:24:14,798 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_107 [2021-12-18 16:24:14,798 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_107 [2021-12-18 16:24:14,798 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-18 16:24:14,798 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2021-12-18 16:24:14,799 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2021-12-18 16:24:14,799 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2021-12-18 16:24:14,799 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2021-12-18 16:24:14,799 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_rtnetlink_check_final_state [2021-12-18 16:24:14,799 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_rtnetlink_check_final_state [2021-12-18 16:24:14,799 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_intfdata [2021-12-18 16:24:14,799 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_intfdata [2021-12-18 16:24:14,800 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-12-18 16:24:14,800 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-12-18 16:24:14,800 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2021-12-18 16:24:14,800 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2021-12-18 16:24:14,800 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-12-18 16:24:14,800 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-12-18 16:24:14,800 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_alloc_usb_lock_check_alloc_flags [2021-12-18 16:24:14,801 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_alloc_usb_lock_check_alloc_flags [2021-12-18 16:24:14,801 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_check_final_state [2021-12-18 16:24:14,802 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_check_final_state [2021-12-18 16:24:14,802 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2021-12-18 16:24:14,802 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2021-12-18 16:24:14,803 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_urb_check_final_state [2021-12-18 16:24:14,803 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_urb_check_final_state [2021-12-18 16:24:14,803 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_nonatomic [2021-12-18 16:24:14,803 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_nonatomic [2021-12-18 16:24:14,803 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_linux_kernel_locking_spinlock_spin_lock [2021-12-18 16:24:14,803 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_linux_kernel_locking_spinlock_spin_lock [2021-12-18 16:24:14,804 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2021-12-18 16:24:14,805 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2021-12-18 16:24:14,805 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_rwlock_check_final_state [2021-12-18 16:24:14,805 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_rwlock_check_final_state [2021-12-18 16:24:14,805 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-12-18 16:24:14,805 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-12-18 16:24:14,805 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2021-12-18 16:24:14,805 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2021-12-18 16:24:14,806 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_handle_damage [2021-12-18 16:24:14,806 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_handle_damage [2021-12-18 16:24:14,806 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-18 16:24:14,806 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_render_hline [2021-12-18 16:24:14,806 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_render_hline [2021-12-18 16:24:14,806 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_usb_disconnect [2021-12-18 16:24:14,806 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_usb_disconnect [2021-12-18 16:24:14,806 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_fs_char_dev_check_final_state [2021-12-18 16:24:14,807 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_fs_char_dev_check_final_state [2021-12-18 16:24:14,807 INFO L130 BoogieDeclarations]: Found specification of procedure edid_show [2021-12-18 16:24:14,807 INFO L138 BoogieDeclarations]: Found implementation of procedure edid_show [2021-12-18 16:24:14,807 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-18 16:24:14,807 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-18 16:24:14,807 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_drivers_base_class_check_final_state [2021-12-18 16:24:14,807 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_drivers_base_class_check_final_state [2021-12-18 16:24:14,808 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_blanking [2021-12-18 16:24:14,808 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_blanking [2021-12-18 16:24:14,808 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-12-18 16:24:14,808 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-12-18 16:24:14,808 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_sched_check_final_state [2021-12-18 16:24:14,808 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_sched_check_final_state [2021-12-18 16:24:14,808 INFO L130 BoogieDeclarations]: Found specification of procedure init_timer_key [2021-12-18 16:24:14,809 INFO L138 BoogieDeclarations]: Found implementation of procedure init_timer_key [2021-12-18 16:24:14,809 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dispatch_register_13_2 [2021-12-18 16:24:14,809 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dispatch_register_13_2 [2021-12-18 16:24:14,809 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_register_framebuffer [2021-12-18 16:24:14,809 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_register_framebuffer [2021-12-18 16:24:14,809 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_ops_set_par [2021-12-18 16:24:14,809 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_ops_set_par [2021-12-18 16:24:14,809 INFO L130 BoogieDeclarations]: Found specification of procedure delayed_work_timer_fn [2021-12-18 16:24:14,810 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-18 16:24:14,810 INFO L130 BoogieDeclarations]: Found specification of procedure edid_store [2021-12-18 16:24:14,810 INFO L138 BoogieDeclarations]: Found implementation of procedure edid_store [2021-12-18 16:24:15,572 INFO L236 CfgBuilder]: Building ICFG [2021-12-18 16:24:15,577 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-18 16:24:15,812 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-12-18 16:24:26,463 INFO L277 CfgBuilder]: Performing block encoding [2021-12-18 16:24:26,484 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-18 16:24:26,485 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-18 16:24:26,489 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 04:24:26 BoogieIcfgContainer [2021-12-18 16:24:26,489 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-18 16:24:26,490 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-18 16:24:26,490 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-18 16:24:26,493 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-18 16:24:26,493 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.12 04:24:10" (1/3) ... [2021-12-18 16:24:26,494 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7440698 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 04:24:26, skipping insertion in model container [2021-12-18 16:24:26,494 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 04:24:14" (2/3) ... [2021-12-18 16:24:26,494 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7440698 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 04:24:26, skipping insertion in model container [2021-12-18 16:24:26,494 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 04:24:26" (3/3) ... [2021-12-18 16:24:26,495 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i [2021-12-18 16:24:26,499 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-18 16:24:26,499 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 33 error locations. [2021-12-18 16:24:26,555 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-18 16:24:26,569 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 16:24:26,569 INFO L340 AbstractCegarLoop]: Starting to check reachability of 33 error locations. [2021-12-18 16:24:26,615 INFO L276 IsEmpty]: Start isEmpty. Operand has 1732 states, 1156 states have (on average 1.2655709342560553) internal successors, (1463), 1233 states have internal predecessors, (1463), 427 states have call successors, (427), 116 states have call predecessors, (427), 115 states have return successors, (419), 405 states have call predecessors, (419), 419 states have call successors, (419) [2021-12-18 16:24:26,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2021-12-18 16:24:26,624 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 16:24:26,625 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 16:24:26,625 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 31 more)] === [2021-12-18 16:24:26,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 16:24:26,630 INFO L85 PathProgramCache]: Analyzing trace with hash -102829175, now seen corresponding path program 1 times [2021-12-18 16:24:26,637 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 16:24:26,638 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1428503086] [2021-12-18 16:24:26,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 16:24:26,639 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 16:24:26,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:24:27,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 16:24:27,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:24:27,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-18 16:24:27,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:24:27,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-12-18 16:24:27,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:24:27,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-18 16:24:27,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:24:27,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-18 16:24:27,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:24:27,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-18 16:24:27,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:24:27,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-12-18 16:24:27,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:24:27,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:24:27,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:24:27,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-12-18 16:24:27,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:24:27,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-18 16:24:27,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:24:27,312 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 16:24:27,312 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 16:24:27,312 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1428503086] [2021-12-18 16:24:27,313 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1428503086] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 16:24:27,313 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 16:24:27,313 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-18 16:24:27,314 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [951788689] [2021-12-18 16:24:27,315 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 16:24:27,318 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 16:24:27,318 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 16:24:27,338 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 16:24:27,339 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-18 16:24:27,344 INFO L87 Difference]: Start difference. First operand has 1732 states, 1156 states have (on average 1.2655709342560553) internal successors, (1463), 1233 states have internal predecessors, (1463), 427 states have call successors, (427), 116 states have call predecessors, (427), 115 states have return successors, (419), 405 states have call predecessors, (419), 419 states have call successors, (419) 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 16:24:30,799 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:24:33,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 16:24:33,513 INFO L93 Difference]: Finished difference Result 3414 states and 4675 transitions. [2021-12-18 16:24:33,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-18 16:24:33,515 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 16:24:33,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 16:24:33,542 INFO L225 Difference]: With dead ends: 3414 [2021-12-18 16:24:33,542 INFO L226 Difference]: Without dead ends: 1711 [2021-12-18 16:24:33,560 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 16:24:33,563 INFO L933 BasicCegarLoop]: 2028 mSDtfsCounter, 3766 mSDsluCounter, 1603 mSDsCounter, 0 mSdLazyCounter, 1931 mSolverCounterSat, 1805 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3938 SdHoareTripleChecker+Valid, 3631 SdHoareTripleChecker+Invalid, 3736 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1805 IncrementalHoareTripleChecker+Valid, 1931 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2021-12-18 16:24:33,563 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3938 Valid, 3631 Invalid, 3736 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1805 Valid, 1931 Invalid, 0 Unknown, 0 Unchecked, 5.8s Time] [2021-12-18 16:24:33,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1711 states. [2021-12-18 16:24:33,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1711 to 1711. [2021-12-18 16:24:33,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1711 states, 1146 states have (on average 1.2286212914485166) internal successors, (1408), 1215 states have internal predecessors, (1408), 419 states have call successors, (419), 115 states have call predecessors, (419), 114 states have return successors, (417), 403 states have call predecessors, (417), 417 states have call successors, (417) [2021-12-18 16:24:33,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1711 states to 1711 states and 2244 transitions. [2021-12-18 16:24:33,736 INFO L78 Accepts]: Start accepts. Automaton has 1711 states and 2244 transitions. Word has length 71 [2021-12-18 16:24:33,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 16:24:33,738 INFO L470 AbstractCegarLoop]: Abstraction has 1711 states and 2244 transitions. [2021-12-18 16:24:33,738 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 16:24:33,739 INFO L276 IsEmpty]: Start isEmpty. Operand 1711 states and 2244 transitions. [2021-12-18 16:24:33,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2021-12-18 16:24:33,742 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 16:24:33,743 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 16:24:33,743 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-18 16:24:33,743 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 31 more)] === [2021-12-18 16:24:33,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 16:24:33,744 INFO L85 PathProgramCache]: Analyzing trace with hash 1907593015, now seen corresponding path program 1 times [2021-12-18 16:24:33,744 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 16:24:33,744 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1338023732] [2021-12-18 16:24:33,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 16:24:33,745 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 16:24:33,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:24:33,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 16:24:33,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:24:33,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-18 16:24:33,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:24:33,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-12-18 16:24:33,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:24:33,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-18 16:24:33,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:24:33,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-18 16:24:33,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:24:33,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-18 16:24:34,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:24:34,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-12-18 16:24:34,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:24:34,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:24:34,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:24:34,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-12-18 16:24:34,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:24:34,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-18 16:24:34,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:24:34,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-18 16:24:34,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:24:34,085 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 16:24:34,085 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 16:24:34,086 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1338023732] [2021-12-18 16:24:34,086 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1338023732] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 16:24:34,086 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 16:24:34,086 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-18 16:24:34,086 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1678902616] [2021-12-18 16:24:34,086 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 16:24:34,087 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 16:24:34,088 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 16:24:34,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 16:24:34,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-18 16:24:34,089 INFO L87 Difference]: Start difference. First operand 1711 states and 2244 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 16:24:38,570 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:24:41,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 16:24:41,066 INFO L93 Difference]: Finished difference Result 1711 states and 2244 transitions. [2021-12-18 16:24:41,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-18 16:24:41,067 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 16:24:41,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 16:24:41,078 INFO L225 Difference]: With dead ends: 1711 [2021-12-18 16:24:41,078 INFO L226 Difference]: Without dead ends: 1709 [2021-12-18 16:24:41,079 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 16:24:41,080 INFO L933 BasicCegarLoop]: 2002 mSDtfsCounter, 3725 mSDsluCounter, 1572 mSDsCounter, 0 mSdLazyCounter, 1917 mSolverCounterSat, 1788 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3894 SdHoareTripleChecker+Valid, 3574 SdHoareTripleChecker+Invalid, 3706 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1788 IncrementalHoareTripleChecker+Valid, 1917 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.8s IncrementalHoareTripleChecker+Time [2021-12-18 16:24:41,080 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3894 Valid, 3574 Invalid, 3706 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1788 Valid, 1917 Invalid, 1 Unknown, 0 Unchecked, 6.8s Time] [2021-12-18 16:24:41,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1709 states. [2021-12-18 16:24:41,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1709 to 1709. [2021-12-18 16:24:41,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1709 states, 1145 states have (on average 1.227947598253275) internal successors, (1406), 1213 states have internal predecessors, (1406), 419 states have call successors, (419), 115 states have call predecessors, (419), 114 states have return successors, (417), 403 states have call predecessors, (417), 417 states have call successors, (417) [2021-12-18 16:24:41,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1709 states to 1709 states and 2242 transitions. [2021-12-18 16:24:41,148 INFO L78 Accepts]: Start accepts. Automaton has 1709 states and 2242 transitions. Word has length 77 [2021-12-18 16:24:41,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 16:24:41,149 INFO L470 AbstractCegarLoop]: Abstraction has 1709 states and 2242 transitions. [2021-12-18 16:24:41,149 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 16:24:41,149 INFO L276 IsEmpty]: Start isEmpty. Operand 1709 states and 2242 transitions. [2021-12-18 16:24:41,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2021-12-18 16:24:41,151 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 16:24:41,151 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 16:24:41,151 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-18 16:24:41,151 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 31 more)] === [2021-12-18 16:24:41,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 16:24:41,152 INFO L85 PathProgramCache]: Analyzing trace with hash 1415725826, now seen corresponding path program 1 times [2021-12-18 16:24:41,152 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 16:24:41,152 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1493878573] [2021-12-18 16:24:41,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 16:24:41,153 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 16:24:41,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:24:41,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 16:24:41,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:24:41,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-18 16:24:41,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:24:41,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-12-18 16:24:41,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:24:41,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-18 16:24:41,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:24:41,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-18 16:24:41,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:24:41,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-18 16:24:41,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:24:41,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-12-18 16:24:41,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:24:41,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:24:41,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:24:41,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-12-18 16:24:41,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:24:41,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-18 16:24:41,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:24:41,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-18 16:24:41,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:24:41,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-18 16:24:41,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:24:41,519 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 16:24:41,519 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 16:24:41,519 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1493878573] [2021-12-18 16:24:41,519 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1493878573] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 16:24:41,519 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 16:24:41,519 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-18 16:24:41,520 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2144183457] [2021-12-18 16:24:41,520 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 16:24:41,520 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 16:24:41,520 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 16:24:41,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 16:24:41,522 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-18 16:24:41,522 INFO L87 Difference]: Start difference. First operand 1709 states and 2242 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 16:24:45,573 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:24:47,665 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-12-18 16:24:50,753 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:24:52,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 16:24:52,330 INFO L93 Difference]: Finished difference Result 1709 states and 2242 transitions. [2021-12-18 16:24:52,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-18 16:24:52,330 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 16:24:52,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 16:24:52,339 INFO L225 Difference]: With dead ends: 1709 [2021-12-18 16:24:52,340 INFO L226 Difference]: Without dead ends: 1707 [2021-12-18 16:24:52,341 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 16:24:52,341 INFO L933 BasicCegarLoop]: 2000 mSDtfsCounter, 3719 mSDsluCounter, 1572 mSDsCounter, 0 mSdLazyCounter, 1913 mSolverCounterSat, 1788 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3887 SdHoareTripleChecker+Valid, 3572 SdHoareTripleChecker+Invalid, 3704 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1788 IncrementalHoareTripleChecker+Valid, 1913 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.6s IncrementalHoareTripleChecker+Time [2021-12-18 16:24:52,342 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3887 Valid, 3572 Invalid, 3704 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1788 Valid, 1913 Invalid, 3 Unknown, 0 Unchecked, 10.6s Time] [2021-12-18 16:24:52,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1707 states. [2021-12-18 16:24:52,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1707 to 1707. [2021-12-18 16:24:52,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1707 states, 1144 states have (on average 1.2272727272727273) internal successors, (1404), 1211 states have internal predecessors, (1404), 419 states have call successors, (419), 115 states have call predecessors, (419), 114 states have return successors, (417), 403 states have call predecessors, (417), 417 states have call successors, (417) [2021-12-18 16:24:52,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1707 states to 1707 states and 2240 transitions. [2021-12-18 16:24:52,405 INFO L78 Accepts]: Start accepts. Automaton has 1707 states and 2240 transitions. Word has length 83 [2021-12-18 16:24:52,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 16:24:52,406 INFO L470 AbstractCegarLoop]: Abstraction has 1707 states and 2240 transitions. [2021-12-18 16:24:52,406 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 16:24:52,406 INFO L276 IsEmpty]: Start isEmpty. Operand 1707 states and 2240 transitions. [2021-12-18 16:24:52,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2021-12-18 16:24:52,408 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 16:24:52,408 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 16:24:52,408 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-18 16:24:52,408 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 31 more)] === [2021-12-18 16:24:52,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 16:24:52,409 INFO L85 PathProgramCache]: Analyzing trace with hash 382932028, now seen corresponding path program 1 times [2021-12-18 16:24:52,409 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 16:24:52,409 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [84099135] [2021-12-18 16:24:52,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 16:24:52,409 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 16:24:52,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:24:52,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 16:24:52,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:24:52,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-18 16:24:52,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:24:52,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-12-18 16:24:52,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:24:52,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-18 16:24:52,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:24:52,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-18 16:24:52,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:24:52,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-18 16:24:52,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:24:52,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-12-18 16:24:52,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:24:52,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:24:52,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:24:52,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-12-18 16:24:52,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:24:52,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-18 16:24:52,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:24:52,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-18 16:24:52,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:24:52,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-18 16:24:52,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:24:52,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-12-18 16:24:52,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:24:52,671 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 16:24:52,671 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 16:24:52,671 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [84099135] [2021-12-18 16:24:52,671 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [84099135] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 16:24:52,671 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 16:24:52,671 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-18 16:24:52,672 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [3262896] [2021-12-18 16:24:52,672 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 16:24:52,672 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 16:24:52,672 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 16:24:52,673 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 16:24:52,673 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-18 16:24:52,673 INFO L87 Difference]: Start difference. First operand 1707 states and 2240 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 16:24:56,717 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:24:59,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 16:24:59,015 INFO L93 Difference]: Finished difference Result 1707 states and 2240 transitions. [2021-12-18 16:24:59,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-18 16:24:59,016 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 16:24:59,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 16:24:59,025 INFO L225 Difference]: With dead ends: 1707 [2021-12-18 16:24:59,025 INFO L226 Difference]: Without dead ends: 1705 [2021-12-18 16:24:59,026 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 16:24:59,027 INFO L933 BasicCegarLoop]: 1998 mSDtfsCounter, 3713 mSDsluCounter, 1572 mSDsCounter, 0 mSdLazyCounter, 1913 mSolverCounterSat, 1788 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3880 SdHoareTripleChecker+Valid, 3570 SdHoareTripleChecker+Invalid, 3702 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1788 IncrementalHoareTripleChecker+Valid, 1913 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2021-12-18 16:24:59,027 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3880 Valid, 3570 Invalid, 3702 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1788 Valid, 1913 Invalid, 1 Unknown, 0 Unchecked, 6.2s Time] [2021-12-18 16:24:59,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1705 states. [2021-12-18 16:24:59,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1705 to 1705. [2021-12-18 16:24:59,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1705 states, 1143 states have (on average 1.226596675415573) internal successors, (1402), 1209 states have internal predecessors, (1402), 419 states have call successors, (419), 115 states have call predecessors, (419), 114 states have return successors, (417), 403 states have call predecessors, (417), 417 states have call successors, (417) [2021-12-18 16:24:59,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1705 states to 1705 states and 2238 transitions. [2021-12-18 16:24:59,092 INFO L78 Accepts]: Start accepts. Automaton has 1705 states and 2238 transitions. Word has length 89 [2021-12-18 16:24:59,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 16:24:59,093 INFO L470 AbstractCegarLoop]: Abstraction has 1705 states and 2238 transitions. [2021-12-18 16:24:59,093 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 16:24:59,094 INFO L276 IsEmpty]: Start isEmpty. Operand 1705 states and 2238 transitions. [2021-12-18 16:24:59,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2021-12-18 16:24:59,095 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 16:24:59,095 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 16:24:59,095 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-18 16:24:59,095 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 31 more)] === [2021-12-18 16:24:59,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 16:24:59,096 INFO L85 PathProgramCache]: Analyzing trace with hash -1498612451, now seen corresponding path program 1 times [2021-12-18 16:24:59,096 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 16:24:59,096 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1228421024] [2021-12-18 16:24:59,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 16:24:59,097 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 16:24:59,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:24:59,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 16:24:59,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:24:59,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-18 16:24:59,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:24:59,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-12-18 16:24:59,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:24:59,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-18 16:24:59,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:24:59,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-18 16:24:59,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:24:59,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-18 16:24:59,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:24:59,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-12-18 16:24:59,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:24:59,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:24:59,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:24:59,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-12-18 16:24:59,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:24:59,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-18 16:24:59,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:24:59,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-18 16:24:59,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:24:59,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-18 16:24:59,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:24:59,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-12-18 16:24:59,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:24:59,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-18 16:24:59,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:24:59,418 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 16:24:59,418 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 16:24:59,418 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1228421024] [2021-12-18 16:24:59,419 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1228421024] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 16:24:59,419 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 16:24:59,419 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-18 16:24:59,419 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1936279296] [2021-12-18 16:24:59,419 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 16:24:59,421 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 16:24:59,421 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 16:24:59,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 16:24:59,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-18 16:24:59,422 INFO L87 Difference]: Start difference. First operand 1705 states and 2238 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 16:25:03,418 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:25:05,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 16:25:05,620 INFO L93 Difference]: Finished difference Result 1705 states and 2238 transitions. [2021-12-18 16:25:05,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-18 16:25:05,621 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 16:25:05,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 16:25:05,629 INFO L225 Difference]: With dead ends: 1705 [2021-12-18 16:25:05,629 INFO L226 Difference]: Without dead ends: 1703 [2021-12-18 16:25:05,630 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 16:25:05,631 INFO L933 BasicCegarLoop]: 1996 mSDtfsCounter, 3707 mSDsluCounter, 1572 mSDsCounter, 0 mSdLazyCounter, 1911 mSolverCounterSat, 1788 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3873 SdHoareTripleChecker+Valid, 3568 SdHoareTripleChecker+Invalid, 3700 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1788 IncrementalHoareTripleChecker+Valid, 1911 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2021-12-18 16:25:05,631 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3873 Valid, 3568 Invalid, 3700 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1788 Valid, 1911 Invalid, 1 Unknown, 0 Unchecked, 6.1s Time] [2021-12-18 16:25:05,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1703 states. [2021-12-18 16:25:05,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1703 to 1703. [2021-12-18 16:25:05,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1703 states, 1142 states have (on average 1.2259194395796849) internal successors, (1400), 1207 states have internal predecessors, (1400), 419 states have call successors, (419), 115 states have call predecessors, (419), 114 states have return successors, (417), 403 states have call predecessors, (417), 417 states have call successors, (417) [2021-12-18 16:25:05,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1703 states to 1703 states and 2236 transitions. [2021-12-18 16:25:05,694 INFO L78 Accepts]: Start accepts. Automaton has 1703 states and 2236 transitions. Word has length 95 [2021-12-18 16:25:05,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 16:25:05,694 INFO L470 AbstractCegarLoop]: Abstraction has 1703 states and 2236 transitions. [2021-12-18 16:25:05,694 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 16:25:05,695 INFO L276 IsEmpty]: Start isEmpty. Operand 1703 states and 2236 transitions. [2021-12-18 16:25:05,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2021-12-18 16:25:05,696 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 16:25:05,696 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 16:25:05,696 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-18 16:25:05,696 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 31 more)] === [2021-12-18 16:25:05,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 16:25:05,697 INFO L85 PathProgramCache]: Analyzing trace with hash -650245583, now seen corresponding path program 1 times [2021-12-18 16:25:05,697 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 16:25:05,697 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1751448756] [2021-12-18 16:25:05,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 16:25:05,697 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 16:25:05,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:25:05,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 16:25:05,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:25:05,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-18 16:25:05,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:25:05,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-12-18 16:25:05,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:25:05,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-18 16:25:05,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:25:05,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-18 16:25:05,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:25:05,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-18 16:25:05,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:25:05,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-12-18 16:25:05,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:25:05,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:25:05,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:25:05,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-12-18 16:25:05,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:25:05,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-18 16:25:05,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:25:05,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-18 16:25:05,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:25:05,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-18 16:25:05,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:25:05,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-12-18 16:25:05,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:25:05,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-18 16:25:05,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:25:05,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-18 16:25:05,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:25:05,967 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 16:25:05,967 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 16:25:05,967 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1751448756] [2021-12-18 16:25:05,967 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1751448756] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 16:25:05,967 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 16:25:05,967 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-18 16:25:05,968 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2074307476] [2021-12-18 16:25:05,968 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 16:25:05,968 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 16:25:05,968 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 16:25:05,968 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 16:25:05,969 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-18 16:25:05,969 INFO L87 Difference]: Start difference. First operand 1703 states and 2236 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 16:25:09,756 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:25:11,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 16:25:11,888 INFO L93 Difference]: Finished difference Result 1703 states and 2236 transitions. [2021-12-18 16:25:11,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-18 16:25:11,888 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 16:25:11,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 16:25:11,897 INFO L225 Difference]: With dead ends: 1703 [2021-12-18 16:25:11,897 INFO L226 Difference]: Without dead ends: 1701 [2021-12-18 16:25:11,898 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 16:25:11,899 INFO L933 BasicCegarLoop]: 1994 mSDtfsCounter, 3701 mSDsluCounter, 1572 mSDsCounter, 0 mSdLazyCounter, 1909 mSolverCounterSat, 1788 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3866 SdHoareTripleChecker+Valid, 3566 SdHoareTripleChecker+Invalid, 3698 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1788 IncrementalHoareTripleChecker+Valid, 1909 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2021-12-18 16:25:11,899 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3866 Valid, 3566 Invalid, 3698 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1788 Valid, 1909 Invalid, 1 Unknown, 0 Unchecked, 5.8s Time] [2021-12-18 16:25:11,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1701 states. [2021-12-18 16:25:11,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1701 to 1701. [2021-12-18 16:25:11,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1701 states, 1141 states have (on average 1.2252410166520595) internal successors, (1398), 1205 states have internal predecessors, (1398), 419 states have call successors, (419), 115 states have call predecessors, (419), 114 states have return successors, (417), 403 states have call predecessors, (417), 417 states have call successors, (417) [2021-12-18 16:25:11,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1701 states to 1701 states and 2234 transitions. [2021-12-18 16:25:11,959 INFO L78 Accepts]: Start accepts. Automaton has 1701 states and 2234 transitions. Word has length 101 [2021-12-18 16:25:11,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 16:25:11,959 INFO L470 AbstractCegarLoop]: Abstraction has 1701 states and 2234 transitions. [2021-12-18 16:25:11,959 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 16:25:11,959 INFO L276 IsEmpty]: Start isEmpty. Operand 1701 states and 2234 transitions. [2021-12-18 16:25:11,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2021-12-18 16:25:11,960 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 16:25:11,961 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 16:25:11,961 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-18 16:25:11,961 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 31 more)] === [2021-12-18 16:25:11,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 16:25:11,961 INFO L85 PathProgramCache]: Analyzing trace with hash -670377695, now seen corresponding path program 1 times [2021-12-18 16:25:11,962 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 16:25:11,962 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1718896135] [2021-12-18 16:25:11,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 16:25:11,962 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 16:25:12,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:25:12,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 16:25:12,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:25:12,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-18 16:25:12,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:25:12,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-12-18 16:25:12,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:25:12,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-18 16:25:12,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:25:12,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-18 16:25:12,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:25:12,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-18 16:25:12,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:25:12,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-12-18 16:25:12,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:25:12,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:25:12,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:25:12,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-12-18 16:25:12,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:25:12,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-18 16:25:12,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:25:12,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-18 16:25:12,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:25:12,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-18 16:25:12,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:25:12,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-12-18 16:25:12,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:25:12,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-18 16:25:12,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:25:12,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-18 16:25:12,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:25:12,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-12-18 16:25:12,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:25:12,228 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 16:25:12,228 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 16:25:12,228 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1718896135] [2021-12-18 16:25:12,228 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1718896135] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 16:25:12,229 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 16:25:12,229 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-18 16:25:12,229 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [672379141] [2021-12-18 16:25:12,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 16:25:12,229 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 16:25:12,230 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 16:25:12,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 16:25:12,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-18 16:25:12,230 INFO L87 Difference]: Start difference. First operand 1701 states and 2234 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 16:25:16,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 16:25:16,488 INFO L93 Difference]: Finished difference Result 1701 states and 2234 transitions. [2021-12-18 16:25:16,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-18 16:25:16,488 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 16:25:16,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 16:25:16,496 INFO L225 Difference]: With dead ends: 1701 [2021-12-18 16:25:16,496 INFO L226 Difference]: Without dead ends: 1699 [2021-12-18 16:25:16,497 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 16:25:16,498 INFO L933 BasicCegarLoop]: 1992 mSDtfsCounter, 3695 mSDsluCounter, 1572 mSDsCounter, 0 mSdLazyCounter, 1908 mSolverCounterSat, 1788 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3859 SdHoareTripleChecker+Valid, 3564 SdHoareTripleChecker+Invalid, 3696 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1788 IncrementalHoareTripleChecker+Valid, 1908 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2021-12-18 16:25:16,498 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3859 Valid, 3564 Invalid, 3696 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1788 Valid, 1908 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2021-12-18 16:25:16,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1699 states. [2021-12-18 16:25:16,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1699 to 1699. [2021-12-18 16:25:16,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1699 states, 1140 states have (on average 1.224561403508772) internal successors, (1396), 1203 states have internal predecessors, (1396), 419 states have call successors, (419), 115 states have call predecessors, (419), 114 states have return successors, (417), 403 states have call predecessors, (417), 417 states have call successors, (417) [2021-12-18 16:25:16,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1699 states to 1699 states and 2232 transitions. [2021-12-18 16:25:16,559 INFO L78 Accepts]: Start accepts. Automaton has 1699 states and 2232 transitions. Word has length 107 [2021-12-18 16:25:16,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 16:25:16,560 INFO L470 AbstractCegarLoop]: Abstraction has 1699 states and 2232 transitions. [2021-12-18 16:25:16,560 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 16:25:16,560 INFO L276 IsEmpty]: Start isEmpty. Operand 1699 states and 2232 transitions. [2021-12-18 16:25:16,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-12-18 16:25:16,562 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 16:25:16,562 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 16:25:16,562 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-18 16:25:16,562 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 31 more)] === [2021-12-18 16:25:16,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 16:25:16,563 INFO L85 PathProgramCache]: Analyzing trace with hash -322919627, now seen corresponding path program 1 times [2021-12-18 16:25:16,563 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 16:25:16,563 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1275616868] [2021-12-18 16:25:16,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 16:25:16,563 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 16:25:16,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:25:16,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 16:25:16,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:25:16,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-18 16:25:16,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:25:16,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-12-18 16:25:16,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:25:16,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-18 16:25:16,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:25:16,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-18 16:25:16,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:25:16,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-18 16:25:16,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:25:16,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-12-18 16:25:16,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:25:16,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:25:16,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:25:16,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-12-18 16:25:16,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:25:16,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-18 16:25:16,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:25:16,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-18 16:25:16,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:25:16,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-18 16:25:16,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:25:16,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-12-18 16:25:16,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:25:16,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-18 16:25:16,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:25:16,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-18 16:25:16,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:25:16,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-12-18 16:25:16,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:25:16,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-12-18 16:25:16,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:25:16,845 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 16:25:16,846 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 16:25:16,846 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1275616868] [2021-12-18 16:25:16,846 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1275616868] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 16:25:16,846 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 16:25:16,846 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-18 16:25:16,846 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [840328942] [2021-12-18 16:25:16,846 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 16:25:16,847 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 16:25:16,847 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 16:25:16,847 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 16:25:16,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-18 16:25:16,848 INFO L87 Difference]: Start difference. First operand 1699 states and 2232 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 16:25:20,667 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:25:22,913 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-12-18 16:25:25,821 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:25:27,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 16:25:27,180 INFO L93 Difference]: Finished difference Result 1699 states and 2232 transitions. [2021-12-18 16:25:27,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-18 16:25:27,180 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 16:25:27,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 16:25:27,188 INFO L225 Difference]: With dead ends: 1699 [2021-12-18 16:25:27,188 INFO L226 Difference]: Without dead ends: 1697 [2021-12-18 16:25:27,189 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 16:25:27,190 INFO L933 BasicCegarLoop]: 1990 mSDtfsCounter, 3693 mSDsluCounter, 1572 mSDsCounter, 0 mSdLazyCounter, 1899 mSolverCounterSat, 1788 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3856 SdHoareTripleChecker+Valid, 3562 SdHoareTripleChecker+Invalid, 3690 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1788 IncrementalHoareTripleChecker+Valid, 1899 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.2s IncrementalHoareTripleChecker+Time [2021-12-18 16:25:27,190 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3856 Valid, 3562 Invalid, 3690 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1788 Valid, 1899 Invalid, 3 Unknown, 0 Unchecked, 10.2s Time] [2021-12-18 16:25:27,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1697 states. [2021-12-18 16:25:27,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1697 to 1697. [2021-12-18 16:25:27,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1697 states, 1139 states have (on average 1.2238805970149254) internal successors, (1394), 1201 states have internal predecessors, (1394), 419 states have call successors, (419), 115 states have call predecessors, (419), 114 states have return successors, (417), 403 states have call predecessors, (417), 417 states have call successors, (417) [2021-12-18 16:25:27,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1697 states to 1697 states and 2230 transitions. [2021-12-18 16:25:27,290 INFO L78 Accepts]: Start accepts. Automaton has 1697 states and 2230 transitions. Word has length 113 [2021-12-18 16:25:27,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 16:25:27,290 INFO L470 AbstractCegarLoop]: Abstraction has 1697 states and 2230 transitions. [2021-12-18 16:25:27,291 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 16:25:27,291 INFO L276 IsEmpty]: Start isEmpty. Operand 1697 states and 2230 transitions. [2021-12-18 16:25:27,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-12-18 16:25:27,294 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 16:25:27,294 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 16:25:27,294 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-18 16:25:27,294 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_linux_kernel_locking_rwlock_check_final_stateErr1ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-12-18 16:25:27,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 16:25:27,295 INFO L85 PathProgramCache]: Analyzing trace with hash -1087978120, now seen corresponding path program 1 times [2021-12-18 16:25:27,296 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 16:25:27,296 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [191487875] [2021-12-18 16:25:27,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 16:25:27,296 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 16:25:27,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:25:27,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 16:25:27,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:25:27,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-18 16:25:27,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:25:27,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-12-18 16:25:27,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:25:27,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-18 16:25:27,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:25:27,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-18 16:25:27,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:25:27,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-18 16:25:27,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:25:27,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-12-18 16:25:27,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:25:27,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:25:27,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:25:27,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-12-18 16:25:27,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:25:27,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-18 16:25:27,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:25:27,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-18 16:25:27,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:25:27,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-18 16:25:27,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:25:27,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-12-18 16:25:27,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:25:27,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-18 16:25:27,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:25:27,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-18 16:25:27,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:25:27,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-12-18 16:25:27,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:25:27,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-12-18 16:25:27,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:25:27,542 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 16:25:27,542 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 16:25:27,542 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [191487875] [2021-12-18 16:25:27,542 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [191487875] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 16:25:27,542 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 16:25:27,542 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-18 16:25:27,543 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [899895501] [2021-12-18 16:25:27,543 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 16:25:27,543 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 16:25:27,544 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 16:25:27,544 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 16:25:27,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-18 16:25:27,544 INFO L87 Difference]: Start difference. First operand 1697 states and 2230 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 16:25:32,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 16:25:32,645 INFO L93 Difference]: Finished difference Result 1697 states and 2230 transitions. [2021-12-18 16:25:32,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-18 16:25:32,646 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 16:25:32,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 16:25:32,653 INFO L225 Difference]: With dead ends: 1697 [2021-12-18 16:25:32,653 INFO L226 Difference]: Without dead ends: 1695 [2021-12-18 16:25:32,653 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 16:25:32,654 INFO L933 BasicCegarLoop]: 1988 mSDtfsCounter, 3681 mSDsluCounter, 1572 mSDsCounter, 0 mSdLazyCounter, 1904 mSolverCounterSat, 1788 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3844 SdHoareTripleChecker+Valid, 3560 SdHoareTripleChecker+Invalid, 3692 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1788 IncrementalHoareTripleChecker+Valid, 1904 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2021-12-18 16:25:32,654 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3844 Valid, 3560 Invalid, 3692 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1788 Valid, 1904 Invalid, 0 Unknown, 0 Unchecked, 5.0s Time] [2021-12-18 16:25:32,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1695 states. [2021-12-18 16:25:32,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1695 to 1695. [2021-12-18 16:25:32,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1695 states, 1138 states have (on average 1.2231985940246046) internal successors, (1392), 1199 states have internal predecessors, (1392), 419 states have call successors, (419), 115 states have call predecessors, (419), 114 states have return successors, (417), 403 states have call predecessors, (417), 417 states have call successors, (417) [2021-12-18 16:25:32,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1695 states to 1695 states and 2228 transitions. [2021-12-18 16:25:32,735 INFO L78 Accepts]: Start accepts. Automaton has 1695 states and 2228 transitions. Word has length 115 [2021-12-18 16:25:32,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 16:25:32,736 INFO L470 AbstractCegarLoop]: Abstraction has 1695 states and 2228 transitions. [2021-12-18 16:25:32,737 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 16:25:32,737 INFO L276 IsEmpty]: Start isEmpty. Operand 1695 states and 2228 transitions. [2021-12-18 16:25:32,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2021-12-18 16:25:32,738 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 16:25:32,739 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 16:25:32,739 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-12-18 16:25:32,739 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_linux_kernel_module_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-12-18 16:25:32,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 16:25:32,739 INFO L85 PathProgramCache]: Analyzing trace with hash -1016330362, now seen corresponding path program 1 times [2021-12-18 16:25:32,740 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 16:25:32,740 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1468692654] [2021-12-18 16:25:32,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 16:25:32,740 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 16:25:32,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:25:32,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 16:25:32,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:25:32,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-18 16:25:32,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:25:32,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-12-18 16:25:32,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:25:32,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-18 16:25:32,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:25:32,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-18 16:25:32,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:25:32,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-18 16:25:32,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:25:32,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-12-18 16:25:32,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:25:32,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:25:32,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:25:32,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-12-18 16:25:32,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:25:32,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-18 16:25:32,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:25:32,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-18 16:25:32,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:25:32,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-18 16:25:32,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:25:32,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-12-18 16:25:32,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:25:32,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-18 16:25:32,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:25:32,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-18 16:25:32,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:25:32,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-12-18 16:25:32,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:25:32,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-12-18 16:25:32,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:25:32,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-12-18 16:25:32,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:25:32,999 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 16:25:33,000 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 16:25:33,000 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1468692654] [2021-12-18 16:25:33,000 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1468692654] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 16:25:33,000 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 16:25:33,000 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-18 16:25:33,001 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1527523423] [2021-12-18 16:25:33,001 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 16:25:33,001 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 16:25:33,001 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 16:25:33,002 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 16:25:33,002 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-18 16:25:33,002 INFO L87 Difference]: Start difference. First operand 1695 states and 2228 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 16:25:36,898 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:25:39,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 16:25:39,068 INFO L93 Difference]: Finished difference Result 1695 states and 2228 transitions. [2021-12-18 16:25:39,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-18 16:25:39,068 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 16:25:39,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 16:25:39,075 INFO L225 Difference]: With dead ends: 1695 [2021-12-18 16:25:39,075 INFO L226 Difference]: Without dead ends: 1693 [2021-12-18 16:25:39,076 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 16:25:39,076 INFO L933 BasicCegarLoop]: 1986 mSDtfsCounter, 3677 mSDsluCounter, 1572 mSDsCounter, 0 mSdLazyCounter, 1901 mSolverCounterSat, 1788 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3839 SdHoareTripleChecker+Valid, 3558 SdHoareTripleChecker+Invalid, 3690 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1788 IncrementalHoareTripleChecker+Valid, 1901 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2021-12-18 16:25:39,077 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3839 Valid, 3558 Invalid, 3690 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1788 Valid, 1901 Invalid, 1 Unknown, 0 Unchecked, 5.9s Time] [2021-12-18 16:25:39,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1693 states. [2021-12-18 16:25:39,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1693 to 1693. [2021-12-18 16:25:39,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1693 states, 1137 states have (on average 1.2225153913808267) internal successors, (1390), 1197 states have internal predecessors, (1390), 419 states have call successors, (419), 115 states have call predecessors, (419), 114 states have return successors, (417), 403 states have call predecessors, (417), 417 states have call successors, (417) [2021-12-18 16:25:39,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1693 states to 1693 states and 2226 transitions. [2021-12-18 16:25:39,142 INFO L78 Accepts]: Start accepts. Automaton has 1693 states and 2226 transitions. Word has length 121 [2021-12-18 16:25:39,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 16:25:39,144 INFO L470 AbstractCegarLoop]: Abstraction has 1693 states and 2226 transitions. [2021-12-18 16:25:39,144 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 16:25:39,144 INFO L276 IsEmpty]: Start isEmpty. Operand 1693 states and 2226 transitions. [2021-12-18 16:25:39,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2021-12-18 16:25:39,146 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 16:25:39,146 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] [2021-12-18 16:25:39,146 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-12-18 16:25:39,147 INFO L402 AbstractCegarLoop]: === Iteration 11 === 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 31 more)] === [2021-12-18 16:25:39,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 16:25:39,147 INFO L85 PathProgramCache]: Analyzing trace with hash -627043363, now seen corresponding path program 1 times [2021-12-18 16:25:39,147 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 16:25:39,147 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1578830026] [2021-12-18 16:25:39,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 16:25:39,148 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 16:25:39,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:25:39,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 16:25:39,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:25:39,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-18 16:25:39,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:25:39,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-12-18 16:25:39,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:25:39,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-18 16:25:39,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:25:39,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-12-18 16:25:39,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:25:39,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:25:39,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:25:39,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:25:39,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:25:39,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 16:25:39,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:25:39,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-18 16:25:39,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:25:39,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:25:39,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:25:39,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:25:39,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:25:39,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 16:25:39,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:25:39,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-12-18 16:25:39,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:25:39,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:25:39,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:25:39,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:25:39,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:25:39,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 16:25:39,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:25:39,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-12-18 16:25:39,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:25:39,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:25:39,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:25:39,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:25:39,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:25:39,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 16:25:39,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:25:39,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-12-18 16:25:39,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:25:39,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:25:39,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:25:39,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:25:39,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:25:39,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 16:25:39,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:25:39,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-12-18 16:25:39,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:25:39,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-12-18 16:25:39,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:25:39,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-12-18 16:25:39,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:25:39,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2021-12-18 16:25:39,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:25:39,632 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 16:25:39,632 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 16:25:39,632 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1578830026] [2021-12-18 16:25:39,632 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1578830026] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 16:25:39,632 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 16:25:39,633 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-18 16:25:39,633 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1567971092] [2021-12-18 16:25:39,633 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 16:25:39,633 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-18 16:25:39,633 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 16:25:39,634 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-18 16:25:39,634 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-18 16:25:39,635 INFO L87 Difference]: Start difference. First operand 1693 states and 2226 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, (19), 5 states have call predecessors, (19), 2 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) [2021-12-18 16:25:47,008 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:25:49,258 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:25:54,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 16:25:54,996 INFO L93 Difference]: Finished difference Result 3500 states and 4695 transitions. [2021-12-18 16:25:54,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-12-18 16:25:54,996 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, (19), 5 states have call predecessors, (19), 2 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) Word has length 168 [2021-12-18 16:25:54,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 16:25:55,008 INFO L225 Difference]: With dead ends: 3500 [2021-12-18 16:25:55,009 INFO L226 Difference]: Without dead ends: 1847 [2021-12-18 16:25:55,017 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=91, Invalid=215, Unknown=0, NotChecked=0, Total=306 [2021-12-18 16:25:55,018 INFO L933 BasicCegarLoop]: 1979 mSDtfsCounter, 4680 mSDsluCounter, 3202 mSDsCounter, 0 mSdLazyCounter, 6080 mSolverCounterSat, 2623 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4859 SdHoareTripleChecker+Valid, 5181 SdHoareTripleChecker+Invalid, 8705 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2623 IncrementalHoareTripleChecker+Valid, 6080 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.0s IncrementalHoareTripleChecker+Time [2021-12-18 16:25:55,018 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4859 Valid, 5181 Invalid, 8705 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2623 Valid, 6080 Invalid, 2 Unknown, 0 Unchecked, 15.0s Time] [2021-12-18 16:25:55,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1847 states. [2021-12-18 16:25:55,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1847 to 1693. [2021-12-18 16:25:55,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1693 states, 1137 states have (on average 1.2216358839050132) internal successors, (1389), 1197 states have internal predecessors, (1389), 419 states have call successors, (419), 115 states have call predecessors, (419), 114 states have return successors, (417), 403 states have call predecessors, (417), 417 states have call successors, (417) [2021-12-18 16:25:55,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1693 states to 1693 states and 2225 transitions. [2021-12-18 16:25:55,104 INFO L78 Accepts]: Start accepts. Automaton has 1693 states and 2225 transitions. Word has length 168 [2021-12-18 16:25:55,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 16:25:55,105 INFO L470 AbstractCegarLoop]: Abstraction has 1693 states and 2225 transitions. [2021-12-18 16:25:55,105 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, (19), 5 states have call predecessors, (19), 2 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) [2021-12-18 16:25:55,105 INFO L276 IsEmpty]: Start isEmpty. Operand 1693 states and 2225 transitions. [2021-12-18 16:25:55,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2021-12-18 16:25:55,107 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 16:25:55,107 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] [2021-12-18 16:25:55,107 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-12-18 16:25:55,108 INFO L402 AbstractCegarLoop]: === Iteration 12 === 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 31 more)] === [2021-12-18 16:25:55,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 16:25:55,108 INFO L85 PathProgramCache]: Analyzing trace with hash -626983781, now seen corresponding path program 1 times [2021-12-18 16:25:55,108 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 16:25:55,108 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [702885166] [2021-12-18 16:25:55,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 16:25:55,109 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 16:25:55,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:25:55,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 16:25:55,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:25:55,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-18 16:25:55,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:25:55,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-12-18 16:25:55,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:25:55,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-18 16:25:55,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:25:55,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-12-18 16:25:55,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:25:55,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:25:55,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:25:55,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:25:55,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:25:55,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 16:25:55,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:25:55,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-18 16:25:55,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:25:55,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:25:55,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:25:55,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:25:55,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:25:55,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 16:25:55,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:25:55,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-12-18 16:25:55,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:25:55,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:25:55,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:25:55,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:25:55,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:25:55,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 16:25:55,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:25:55,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-12-18 16:25:55,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:25:55,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:25:55,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:25:55,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:25:55,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:25:55,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 16:25:55,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:25:55,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-12-18 16:25:55,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:25:55,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:25:55,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:25:55,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:25:55,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:25:55,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 16:25:55,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:25:55,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-12-18 16:25:55,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:25:55,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-12-18 16:25:55,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:25:55,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-12-18 16:25:55,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:25:55,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2021-12-18 16:25:55,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:25:55,445 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 16:25:55,445 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 16:25:55,445 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [702885166] [2021-12-18 16:25:55,446 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [702885166] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 16:25:55,446 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 16:25:55,446 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-18 16:25:55,446 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1687603225] [2021-12-18 16:25:55,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 16:25:55,446 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-18 16:25:55,447 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 16:25:55,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-18 16:25:55,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-18 16:25:55,447 INFO L87 Difference]: Start difference. First operand 1693 states and 2225 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, (19), 4 states have call predecessors, (19), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2021-12-18 16:26:00,558 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:26:02,777 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:26:04,991 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-12-18 16:26:09,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 16:26:09,580 INFO L93 Difference]: Finished difference Result 1847 states and 2461 transitions. [2021-12-18 16:26:09,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-18 16:26:09,581 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, (19), 4 states have call predecessors, (19), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 168 [2021-12-18 16:26:09,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 16:26:09,591 INFO L225 Difference]: With dead ends: 1847 [2021-12-18 16:26:09,591 INFO L226 Difference]: Without dead ends: 1845 [2021-12-18 16:26:09,592 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 57 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 16:26:09,592 INFO L933 BasicCegarLoop]: 1977 mSDtfsCounter, 3031 mSDsluCounter, 2870 mSDsCounter, 0 mSdLazyCounter, 4134 mSolverCounterSat, 2056 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3031 SdHoareTripleChecker+Valid, 4847 SdHoareTripleChecker+Invalid, 6193 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2056 IncrementalHoareTripleChecker+Valid, 4134 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.9s IncrementalHoareTripleChecker+Time [2021-12-18 16:26:09,593 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3031 Valid, 4847 Invalid, 6193 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2056 Valid, 4134 Invalid, 3 Unknown, 0 Unchecked, 13.9s Time] [2021-12-18 16:26:09,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1845 states. [2021-12-18 16:26:09,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1845 to 1691. [2021-12-18 16:26:09,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1691 states, 1136 states have (on average 1.220950704225352) internal successors, (1387), 1195 states have internal predecessors, (1387), 419 states have call successors, (419), 115 states have call predecessors, (419), 114 states have return successors, (417), 403 states have call predecessors, (417), 417 states have call successors, (417) [2021-12-18 16:26:09,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1691 states to 1691 states and 2223 transitions. [2021-12-18 16:26:09,679 INFO L78 Accepts]: Start accepts. Automaton has 1691 states and 2223 transitions. Word has length 168 [2021-12-18 16:26:09,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 16:26:09,680 INFO L470 AbstractCegarLoop]: Abstraction has 1691 states and 2223 transitions. [2021-12-18 16:26:09,680 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, (19), 4 states have call predecessors, (19), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2021-12-18 16:26:09,681 INFO L276 IsEmpty]: Start isEmpty. Operand 1691 states and 2223 transitions. [2021-12-18 16:26:09,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2021-12-18 16:26:09,682 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 16:26:09,682 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 16:26:09,683 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-12-18 16:26:09,683 INFO L402 AbstractCegarLoop]: === Iteration 13 === 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 31 more)] === [2021-12-18 16:26:09,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 16:26:09,683 INFO L85 PathProgramCache]: Analyzing trace with hash -1865319984, now seen corresponding path program 1 times [2021-12-18 16:26:09,683 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 16:26:09,683 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [796354964] [2021-12-18 16:26:09,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 16:26:09,684 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 16:26:09,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:26:09,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 16:26:09,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:26:09,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-18 16:26:09,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:26:09,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-12-18 16:26:09,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:26:09,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-18 16:26:09,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:26:09,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-18 16:26:09,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:26:09,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-18 16:26:09,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:26:09,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-12-18 16:26:09,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:26:09,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:26:09,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:26:09,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-12-18 16:26:09,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:26:09,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-18 16:26:09,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:26:09,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-18 16:26:09,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:26:09,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-18 16:26:09,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:26:09,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-12-18 16:26:09,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:26:09,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-18 16:26:09,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:26:09,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-18 16:26:09,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:26:09,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-12-18 16:26:09,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:26:09,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-12-18 16:26:09,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:26:09,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-12-18 16:26:09,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:26:09,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-12-18 16:26:09,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:26:09,934 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 16:26:09,934 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 16:26:09,935 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [796354964] [2021-12-18 16:26:09,935 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [796354964] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 16:26:09,935 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 16:26:09,935 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-18 16:26:09,935 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1848216052] [2021-12-18 16:26:09,935 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 16:26:09,936 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 16:26:09,936 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 16:26:09,936 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 16:26:09,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-18 16:26:09,937 INFO L87 Difference]: Start difference. First operand 1691 states and 2223 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 16:26:14,159 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:26:16,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 16:26:16,786 INFO L93 Difference]: Finished difference Result 1691 states and 2223 transitions. [2021-12-18 16:26:16,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-18 16:26:16,787 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 16:26:16,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 16:26:16,795 INFO L225 Difference]: With dead ends: 1691 [2021-12-18 16:26:16,800 INFO L226 Difference]: Without dead ends: 1689 [2021-12-18 16:26:16,801 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 16:26:16,810 INFO L933 BasicCegarLoop]: 1981 mSDtfsCounter, 3662 mSDsluCounter, 1572 mSDsCounter, 0 mSdLazyCounter, 1896 mSolverCounterSat, 1788 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3823 SdHoareTripleChecker+Valid, 3553 SdHoareTripleChecker+Invalid, 3685 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1788 IncrementalHoareTripleChecker+Valid, 1896 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.7s IncrementalHoareTripleChecker+Time [2021-12-18 16:26:16,812 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3823 Valid, 3553 Invalid, 3685 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1788 Valid, 1896 Invalid, 1 Unknown, 0 Unchecked, 6.7s Time] [2021-12-18 16:26:16,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1689 states. [2021-12-18 16:26:16,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1689 to 1689. [2021-12-18 16:26:16,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1689 states, 1135 states have (on average 1.2202643171806167) internal successors, (1385), 1193 states have internal predecessors, (1385), 419 states have call successors, (419), 115 states have call predecessors, (419), 114 states have return successors, (417), 403 states have call predecessors, (417), 417 states have call successors, (417) [2021-12-18 16:26:16,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1689 states to 1689 states and 2221 transitions. [2021-12-18 16:26:16,899 INFO L78 Accepts]: Start accepts. Automaton has 1689 states and 2221 transitions. Word has length 127 [2021-12-18 16:26:16,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 16:26:16,899 INFO L470 AbstractCegarLoop]: Abstraction has 1689 states and 2221 transitions. [2021-12-18 16:26:16,899 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 16:26:16,900 INFO L276 IsEmpty]: Start isEmpty. Operand 1689 states and 2221 transitions. [2021-12-18 16:26:16,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2021-12-18 16:26:16,902 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 16:26:16,902 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 16:26:16,902 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-12-18 16:26:16,902 INFO L402 AbstractCegarLoop]: === Iteration 14 === 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 31 more)] === [2021-12-18 16:26:16,902 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 16:26:16,903 INFO L85 PathProgramCache]: Analyzing trace with hash -1121057282, now seen corresponding path program 1 times [2021-12-18 16:26:16,903 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 16:26:16,903 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1354679404] [2021-12-18 16:26:16,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 16:26:16,903 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 16:26:17,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:26:17,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 16:26:17,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:26:17,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-18 16:26:17,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:26:17,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-12-18 16:26:17,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:26:17,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-18 16:26:17,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:26:17,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-18 16:26:17,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:26:17,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-18 16:26:17,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:26:17,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-12-18 16:26:17,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:26:17,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:26:17,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:26:17,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-12-18 16:26:17,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:26:17,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-18 16:26:17,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:26:17,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-18 16:26:17,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:26:17,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-12-18 16:26:17,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:26:17,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:26:17,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:26:17,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:26:17,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:26:17,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 16:26:17,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:26:17,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-12-18 16:26:17,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:26:17,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-18 16:26:17,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:26:17,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:26:17,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:26:17,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:26:17,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:26:17,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 16:26:17,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:26:17,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-12-18 16:26:17,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:26:17,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-12-18 16:26:17,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:26:17,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:26:17,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:26:17,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:26:17,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:26:17,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 16:26:17,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:26:17,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2021-12-18 16:26:17,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:26:17,629 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 16:26:17,629 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 16:26:17,629 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1354679404] [2021-12-18 16:26:17,630 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1354679404] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 16:26:17,630 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 16:26:17,630 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-18 16:26:17,630 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [91623383] [2021-12-18 16:26:17,630 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 16:26:17,631 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-18 16:26:17,631 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 16:26:17,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-18 16:26:17,632 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-12-18 16:26:17,632 INFO L87 Difference]: Start difference. First operand 1689 states and 2221 transitions. Second operand has 8 states, 8 states have (on average 7.375) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (24), 6 states have call predecessors, (24), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-12-18 16:26:22,162 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:26:24,724 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:26:26,807 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:26:29,101 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-12-18 16:26:31,222 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-12-18 16:26:33,350 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-12-18 16:26:35,790 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:26:37,905 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:26:41,301 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:26:43,942 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:26:46,301 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:26:48,424 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:26:50,536 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:26:53,225 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-12-18 16:26:59,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 16:26:59,687 INFO L93 Difference]: Finished difference Result 3533 states and 4737 transitions. [2021-12-18 16:26:59,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-12-18 16:26:59,688 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.375) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (24), 6 states have call predecessors, (24), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 164 [2021-12-18 16:26:59,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 16:26:59,705 INFO L225 Difference]: With dead ends: 3533 [2021-12-18 16:26:59,706 INFO L226 Difference]: Without dead ends: 3531 [2021-12-18 16:26:59,707 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=107, Invalid=235, Unknown=0, NotChecked=0, Total=342 [2021-12-18 16:26:59,708 INFO L933 BasicCegarLoop]: 2623 mSDtfsCounter, 6641 mSDsluCounter, 4123 mSDsCounter, 0 mSdLazyCounter, 7954 mSolverCounterSat, 4275 mSolverCounterUnsat, 13 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 39.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6805 SdHoareTripleChecker+Valid, 6746 SdHoareTripleChecker+Invalid, 12242 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4275 IncrementalHoareTripleChecker+Valid, 7954 IncrementalHoareTripleChecker+Invalid, 13 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 41.6s IncrementalHoareTripleChecker+Time [2021-12-18 16:26:59,708 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6805 Valid, 6746 Invalid, 12242 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4275 Valid, 7954 Invalid, 13 Unknown, 0 Unchecked, 41.6s Time] [2021-12-18 16:26:59,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3531 states. [2021-12-18 16:26:59,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3531 to 3235. [2021-12-18 16:26:59,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3235 states, 2212 states have (on average 1.232368896925859) internal successors, (2726), 2320 states have internal predecessors, (2726), 769 states have call successors, (769), 205 states have call predecessors, (769), 233 states have return successors, (890), 752 states have call predecessors, (890), 767 states have call successors, (890) [2021-12-18 16:26:59,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3235 states to 3235 states and 4385 transitions. [2021-12-18 16:26:59,909 INFO L78 Accepts]: Start accepts. Automaton has 3235 states and 4385 transitions. Word has length 164 [2021-12-18 16:26:59,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 16:26:59,909 INFO L470 AbstractCegarLoop]: Abstraction has 3235 states and 4385 transitions. [2021-12-18 16:26:59,909 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.375) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (24), 6 states have call predecessors, (24), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-12-18 16:26:59,910 INFO L276 IsEmpty]: Start isEmpty. Operand 3235 states and 4385 transitions. [2021-12-18 16:26:59,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2021-12-18 16:26:59,912 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 16:26:59,912 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, 1, 1] [2021-12-18 16:26:59,912 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-12-18 16:26:59,912 INFO L402 AbstractCegarLoop]: === Iteration 15 === 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 31 more)] === [2021-12-18 16:26:59,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 16:26:59,912 INFO L85 PathProgramCache]: Analyzing trace with hash -1249236169, now seen corresponding path program 1 times [2021-12-18 16:26:59,913 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 16:26:59,913 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [113514266] [2021-12-18 16:26:59,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 16:26:59,913 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 16:26:59,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:27:00,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 16:27:00,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:27:00,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-18 16:27:00,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:27:00,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-12-18 16:27:00,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:27:00,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-18 16:27:00,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:27:00,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-12-18 16:27:00,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:27:00,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:27:00,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:27:00,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:27:00,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:27:00,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 16:27:00,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:27:00,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-18 16:27:00,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:27:00,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:27:00,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:27:00,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:27:00,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:27:00,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 16:27:00,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:27:00,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-12-18 16:27:00,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:27:00,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:27:00,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:27:00,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:27:00,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:27:00,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 16:27:00,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:27:00,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-12-18 16:27:00,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:27:00,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:27:00,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:27:00,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:27:00,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:27:00,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 16:27:00,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:27:00,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-12-18 16:27:00,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:27:00,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:27:00,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:27:00,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:27:00,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:27:00,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 16:27:00,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:27:00,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-12-18 16:27:00,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:27:00,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-12-18 16:27:00,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:27:00,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-12-18 16:27:00,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:27:00,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-12-18 16:27:00,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:27:00,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:27:00,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:27:00,226 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 16:27:00,227 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 16:27:00,227 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [113514266] [2021-12-18 16:27:00,227 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [113514266] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 16:27:00,227 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 16:27:00,227 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-18 16:27:00,227 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1447248456] [2021-12-18 16:27:00,227 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 16:27:00,228 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 16:27:00,228 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 16:27:00,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 16:27:00,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-18 16:27:00,229 INFO L87 Difference]: Start difference. First operand 3235 states and 4385 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, (20), 5 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2021-12-18 16:27:03,997 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:27:06,984 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:27:08,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 16:27:08,739 INFO L93 Difference]: Finished difference Result 6504 states and 9029 transitions. [2021-12-18 16:27:08,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-18 16:27:08,739 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, (20), 5 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 175 [2021-12-18 16:27:08,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 16:27:08,755 INFO L225 Difference]: With dead ends: 6504 [2021-12-18 16:27:08,755 INFO L226 Difference]: Without dead ends: 3309 [2021-12-18 16:27:08,770 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-12-18 16:27:08,770 INFO L933 BasicCegarLoop]: 1972 mSDtfsCounter, 4650 mSDsluCounter, 1019 mSDsCounter, 0 mSdLazyCounter, 1475 mSolverCounterSat, 2610 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4830 SdHoareTripleChecker+Valid, 2991 SdHoareTripleChecker+Invalid, 4087 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2610 IncrementalHoareTripleChecker+Valid, 1475 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.3s IncrementalHoareTripleChecker+Time [2021-12-18 16:27:08,770 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4830 Valid, 2991 Invalid, 4087 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2610 Valid, 1475 Invalid, 2 Unknown, 0 Unchecked, 8.3s Time] [2021-12-18 16:27:08,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3309 states. [2021-12-18 16:27:08,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3309 to 3229. [2021-12-18 16:27:08,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3229 states, 2207 states have (on average 1.2310829179882192) internal successors, (2717), 2314 states have internal predecessors, (2717), 769 states have call successors, (769), 205 states have call predecessors, (769), 233 states have return successors, (890), 752 states have call predecessors, (890), 767 states have call successors, (890) [2021-12-18 16:27:08,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3229 states to 3229 states and 4376 transitions. [2021-12-18 16:27:08,937 INFO L78 Accepts]: Start accepts. Automaton has 3229 states and 4376 transitions. Word has length 175 [2021-12-18 16:27:08,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 16:27:08,938 INFO L470 AbstractCegarLoop]: Abstraction has 3229 states and 4376 transitions. [2021-12-18 16:27:08,938 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, (20), 5 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2021-12-18 16:27:08,938 INFO L276 IsEmpty]: Start isEmpty. Operand 3229 states and 4376 transitions. [2021-12-18 16:27:08,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2021-12-18 16:27:08,940 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 16:27:08,940 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 16:27:08,940 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-12-18 16:27:08,941 INFO L402 AbstractCegarLoop]: === Iteration 16 === 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 31 more)] === [2021-12-18 16:27:08,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 16:27:08,941 INFO L85 PathProgramCache]: Analyzing trace with hash -780709977, now seen corresponding path program 1 times [2021-12-18 16:27:08,941 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 16:27:08,941 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [758131198] [2021-12-18 16:27:08,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 16:27:08,942 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 16:27:08,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:27:09,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 16:27:09,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:27:09,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-18 16:27:09,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:27:09,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-12-18 16:27:09,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:27:09,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-18 16:27:09,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:27:09,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-18 16:27:09,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:27:09,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-18 16:27:09,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:27:09,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-12-18 16:27:09,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:27:09,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:27:09,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:27:09,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-12-18 16:27:09,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:27:09,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-18 16:27:09,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:27:09,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-18 16:27:09,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:27:09,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-18 16:27:09,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:27:09,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-12-18 16:27:09,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:27:09,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-18 16:27:09,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:27:09,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-18 16:27:09,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:27:09,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-12-18 16:27:09,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:27:09,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-12-18 16:27:09,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:27:09,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-12-18 16:27:09,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:27:09,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-12-18 16:27:09,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:27:09,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2021-12-18 16:27:09,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:27:09,198 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 16:27:09,199 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 16:27:09,199 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [758131198] [2021-12-18 16:27:09,200 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [758131198] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 16:27:09,201 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 16:27:09,201 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-18 16:27:09,201 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1697238816] [2021-12-18 16:27:09,201 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 16:27:09,202 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 16:27:09,202 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 16:27:09,202 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 16:27:09,202 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-18 16:27:09,203 INFO L87 Difference]: Start difference. First operand 3229 states and 4376 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 16:27:12,661 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:27:15,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 16:27:15,494 INFO L93 Difference]: Finished difference Result 3229 states and 4376 transitions. [2021-12-18 16:27:15,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-18 16:27:15,494 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 16:27:15,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 16:27:15,504 INFO L225 Difference]: With dead ends: 3229 [2021-12-18 16:27:15,504 INFO L226 Difference]: Without dead ends: 3227 [2021-12-18 16:27:15,505 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 16:27:15,505 INFO L933 BasicCegarLoop]: 1974 mSDtfsCounter, 3641 mSDsluCounter, 1572 mSDsCounter, 0 mSdLazyCounter, 1889 mSolverCounterSat, 1788 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3801 SdHoareTripleChecker+Valid, 3546 SdHoareTripleChecker+Invalid, 3678 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1788 IncrementalHoareTripleChecker+Valid, 1889 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2021-12-18 16:27:15,506 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3801 Valid, 3546 Invalid, 3678 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1788 Valid, 1889 Invalid, 1 Unknown, 0 Unchecked, 6.1s Time] [2021-12-18 16:27:15,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3227 states. [2021-12-18 16:27:15,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3227 to 3227. [2021-12-18 16:27:15,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3227 states, 2206 states have (on average 1.2307343608340888) internal successors, (2715), 2312 states have internal predecessors, (2715), 769 states have call successors, (769), 205 states have call predecessors, (769), 233 states have return successors, (890), 752 states have call predecessors, (890), 767 states have call successors, (890) [2021-12-18 16:27:15,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3227 states to 3227 states and 4374 transitions. [2021-12-18 16:27:15,686 INFO L78 Accepts]: Start accepts. Automaton has 3227 states and 4374 transitions. Word has length 133 [2021-12-18 16:27:15,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 16:27:15,687 INFO L470 AbstractCegarLoop]: Abstraction has 3227 states and 4374 transitions. [2021-12-18 16:27:15,687 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 16:27:15,687 INFO L276 IsEmpty]: Start isEmpty. Operand 3227 states and 4374 transitions. [2021-12-18 16:27:15,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2021-12-18 16:27:15,689 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 16:27:15,690 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 16:27:15,690 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-12-18 16:27:15,690 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-12-18 16:27:15,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 16:27:15,690 INFO L85 PathProgramCache]: Analyzing trace with hash -320903054, now seen corresponding path program 1 times [2021-12-18 16:27:15,691 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 16:27:15,691 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1509131845] [2021-12-18 16:27:15,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 16:27:15,691 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 16:27:15,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:27:15,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 16:27:15,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:27:15,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-18 16:27:15,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:27:15,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-12-18 16:27:15,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:27:15,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-18 16:27:15,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:27:15,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-18 16:27:15,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:27:15,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-18 16:27:15,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:27:15,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-12-18 16:27:15,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:27:15,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:27:15,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:27:15,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-12-18 16:27:15,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:27:15,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-18 16:27:15,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:27:15,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-18 16:27:15,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:27:15,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-18 16:27:15,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:27:15,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-12-18 16:27:15,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:27:15,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-18 16:27:15,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:27:15,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-18 16:27:15,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:27:15,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-12-18 16:27:15,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:27:15,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-12-18 16:27:15,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:27:15,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-12-18 16:27:15,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:27:15,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-12-18 16:27:15,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:27:15,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2021-12-18 16:27:15,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:27:15,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-12-18 16:27:15,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:27:15,920 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 16:27:15,920 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 16:27:15,921 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1509131845] [2021-12-18 16:27:15,921 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1509131845] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 16:27:15,921 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 16:27:15,921 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-18 16:27:15,921 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1001058606] [2021-12-18 16:27:15,921 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 16:27:15,923 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 16:27:15,923 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 16:27:15,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 16:27:15,923 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-18 16:27:15,923 INFO L87 Difference]: Start difference. First operand 3227 states and 4374 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 16:27:19,557 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:27:21,615 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-12-18 16:27:23,762 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-12-18 16:27:26,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 16:27:26,599 INFO L93 Difference]: Finished difference Result 3227 states and 4374 transitions. [2021-12-18 16:27:26,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-18 16:27:26,600 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 16:27:26,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 16:27:26,611 INFO L225 Difference]: With dead ends: 3227 [2021-12-18 16:27:26,611 INFO L226 Difference]: Without dead ends: 3225 [2021-12-18 16:27:26,613 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 16:27:26,614 INFO L933 BasicCegarLoop]: 1972 mSDtfsCounter, 3635 mSDsluCounter, 1572 mSDsCounter, 0 mSdLazyCounter, 1885 mSolverCounterSat, 1788 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3794 SdHoareTripleChecker+Valid, 3544 SdHoareTripleChecker+Invalid, 3676 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1788 IncrementalHoareTripleChecker+Valid, 1885 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.5s IncrementalHoareTripleChecker+Time [2021-12-18 16:27:26,614 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3794 Valid, 3544 Invalid, 3676 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1788 Valid, 1885 Invalid, 3 Unknown, 0 Unchecked, 10.5s Time] [2021-12-18 16:27:26,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3225 states. [2021-12-18 16:27:26,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3225 to 3225. [2021-12-18 16:27:26,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3225 states, 2205 states have (on average 1.2303854875283446) internal successors, (2713), 2310 states have internal predecessors, (2713), 769 states have call successors, (769), 205 states have call predecessors, (769), 233 states have return successors, (890), 752 states have call predecessors, (890), 767 states have call successors, (890) [2021-12-18 16:27:26,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3225 states to 3225 states and 4372 transitions. [2021-12-18 16:27:26,784 INFO L78 Accepts]: Start accepts. Automaton has 3225 states and 4372 transitions. Word has length 139 [2021-12-18 16:27:26,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 16:27:26,785 INFO L470 AbstractCegarLoop]: Abstraction has 3225 states and 4372 transitions. [2021-12-18 16:27:26,785 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 16:27:26,785 INFO L276 IsEmpty]: Start isEmpty. Operand 3225 states and 4372 transitions. [2021-12-18 16:27:26,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2021-12-18 16:27:26,787 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 16:27:26,788 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 16:27:26,788 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-12-18 16:27:26,789 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_linux_kernel_rcu_srcu_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-12-18 16:27:26,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 16:27:26,789 INFO L85 PathProgramCache]: Analyzing trace with hash -1606082082, now seen corresponding path program 1 times [2021-12-18 16:27:26,789 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 16:27:26,790 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [592163276] [2021-12-18 16:27:26,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 16:27:26,790 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 16:27:26,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:27:26,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 16:27:26,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:27:26,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-18 16:27:26,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:27:26,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-12-18 16:27:26,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:27:26,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-18 16:27:26,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:27:26,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-18 16:27:26,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:27:26,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-18 16:27:26,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:27:26,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-12-18 16:27:26,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:27:26,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:27:26,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:27:26,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-12-18 16:27:26,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:27:26,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-18 16:27:26,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:27:26,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-18 16:27:26,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:27:27,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-18 16:27:27,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:27:27,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-12-18 16:27:27,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:27:27,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-18 16:27:27,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:27:27,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-18 16:27:27,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:27:27,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-12-18 16:27:27,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:27:27,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-12-18 16:27:27,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:27:27,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-12-18 16:27:27,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:27:27,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-12-18 16:27:27,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:27:27,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2021-12-18 16:27:27,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:27:27,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-12-18 16:27:27,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:27:27,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-18 16:27:27,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:27:27,069 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 16:27:27,069 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 16:27:27,069 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [592163276] [2021-12-18 16:27:27,069 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [592163276] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 16:27:27,069 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 16:27:27,070 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-18 16:27:27,070 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [936680050] [2021-12-18 16:27:27,070 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 16:27:27,071 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 16:27:27,071 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 16:27:27,072 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 16:27:27,072 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-18 16:27:27,072 INFO L87 Difference]: Start difference. First operand 3225 states and 4372 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 16:27:31,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 16:27:31,979 INFO L93 Difference]: Finished difference Result 3225 states and 4372 transitions. [2021-12-18 16:27:31,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-18 16:27:31,979 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 16:27:31,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 16:27:31,993 INFO L225 Difference]: With dead ends: 3225 [2021-12-18 16:27:31,993 INFO L226 Difference]: Without dead ends: 3223 [2021-12-18 16:27:31,994 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 16:27:31,995 INFO L933 BasicCegarLoop]: 1970 mSDtfsCounter, 3629 mSDsluCounter, 1572 mSDsCounter, 0 mSdLazyCounter, 1886 mSolverCounterSat, 1788 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3787 SdHoareTripleChecker+Valid, 3542 SdHoareTripleChecker+Invalid, 3674 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1788 IncrementalHoareTripleChecker+Valid, 1886 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2021-12-18 16:27:31,995 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3787 Valid, 3542 Invalid, 3674 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1788 Valid, 1886 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2021-12-18 16:27:31,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3223 states. [2021-12-18 16:27:32,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3223 to 3223. [2021-12-18 16:27:32,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3223 states, 2204 states have (on average 1.2300362976406534) internal successors, (2711), 2308 states have internal predecessors, (2711), 769 states have call successors, (769), 205 states have call predecessors, (769), 233 states have return successors, (890), 752 states have call predecessors, (890), 767 states have call successors, (890) [2021-12-18 16:27:32,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3223 states to 3223 states and 4370 transitions. [2021-12-18 16:27:32,152 INFO L78 Accepts]: Start accepts. Automaton has 3223 states and 4370 transitions. Word has length 145 [2021-12-18 16:27:32,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 16:27:32,153 INFO L470 AbstractCegarLoop]: Abstraction has 3223 states and 4370 transitions. [2021-12-18 16:27:32,153 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 16:27:32,153 INFO L276 IsEmpty]: Start isEmpty. Operand 3223 states and 4370 transitions. [2021-12-18 16:27:32,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2021-12-18 16:27:32,155 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 16:27:32,156 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 16:27:32,156 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-12-18 16:27:32,156 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_linux_lib_idr_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-12-18 16:27:32,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 16:27:32,156 INFO L85 PathProgramCache]: Analyzing trace with hash -998073270, now seen corresponding path program 1 times [2021-12-18 16:27:32,156 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 16:27:32,157 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1800056999] [2021-12-18 16:27:32,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 16:27:32,157 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 16:27:32,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:27:32,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 16:27:32,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:27:32,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-18 16:27:32,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:27:32,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-12-18 16:27:32,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:27:32,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-18 16:27:32,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:27:32,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-18 16:27:32,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:27:32,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-18 16:27:32,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:27:32,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-12-18 16:27:32,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:27:32,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:27:32,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:27:32,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-12-18 16:27:32,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:27:32,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-18 16:27:32,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:27:32,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-18 16:27:32,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:27:32,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-18 16:27:32,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:27:32,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-12-18 16:27:32,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:27:32,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-18 16:27:32,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:27:32,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-18 16:27:32,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:27:32,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-12-18 16:27:32,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:27:32,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-12-18 16:27:32,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:27:32,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-12-18 16:27:32,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:27:32,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-12-18 16:27:32,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:27:32,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2021-12-18 16:27:32,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:27:32,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-12-18 16:27:32,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:27:32,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-18 16:27:32,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:27:32,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-12-18 16:27:32,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:27:32,397 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 16:27:32,398 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 16:27:32,398 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1800056999] [2021-12-18 16:27:32,398 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1800056999] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 16:27:32,398 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 16:27:32,398 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-18 16:27:32,398 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [34812573] [2021-12-18 16:27:32,398 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 16:27:32,400 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 16:27:32,400 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 16:27:32,400 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 16:27:32,400 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-18 16:27:32,400 INFO L87 Difference]: Start difference. First operand 3223 states and 4370 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 16:27:35,937 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:27:37,989 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-12-18 16:27:40,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 16:27:40,852 INFO L93 Difference]: Finished difference Result 3223 states and 4370 transitions. [2021-12-18 16:27:40,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-18 16:27:40,853 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 16:27:40,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 16:27:40,863 INFO L225 Difference]: With dead ends: 3223 [2021-12-18 16:27:40,863 INFO L226 Difference]: Without dead ends: 3221 [2021-12-18 16:27:40,864 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 16:27:40,865 INFO L933 BasicCegarLoop]: 1968 mSDtfsCounter, 3623 mSDsluCounter, 1572 mSDsCounter, 0 mSdLazyCounter, 1882 mSolverCounterSat, 1788 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3780 SdHoareTripleChecker+Valid, 3540 SdHoareTripleChecker+Invalid, 3672 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1788 IncrementalHoareTripleChecker+Valid, 1882 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.2s IncrementalHoareTripleChecker+Time [2021-12-18 16:27:40,865 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3780 Valid, 3540 Invalid, 3672 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1788 Valid, 1882 Invalid, 2 Unknown, 0 Unchecked, 8.2s Time] [2021-12-18 16:27:40,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3221 states. [2021-12-18 16:27:41,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3221 to 3221. [2021-12-18 16:27:41,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3221 states, 2203 states have (on average 1.2296867907399) internal successors, (2709), 2306 states have internal predecessors, (2709), 769 states have call successors, (769), 205 states have call predecessors, (769), 233 states have return successors, (890), 752 states have call predecessors, (890), 767 states have call successors, (890) [2021-12-18 16:27:41,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3221 states to 3221 states and 4368 transitions. [2021-12-18 16:27:41,077 INFO L78 Accepts]: Start accepts. Automaton has 3221 states and 4368 transitions. Word has length 151 [2021-12-18 16:27:41,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 16:27:41,077 INFO L470 AbstractCegarLoop]: Abstraction has 3221 states and 4368 transitions. [2021-12-18 16:27:41,078 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 16:27:41,078 INFO L276 IsEmpty]: Start isEmpty. Operand 3221 states and 4368 transitions. [2021-12-18 16:27:41,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2021-12-18 16:27:41,080 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 16:27:41,080 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 16:27:41,081 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-12-18 16:27:41,081 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ldv_linux_mmc_sdio_func_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-12-18 16:27:41,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 16:27:41,081 INFO L85 PathProgramCache]: Analyzing trace with hash 1852829728, now seen corresponding path program 1 times [2021-12-18 16:27:41,081 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 16:27:41,081 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [332870015] [2021-12-18 16:27:41,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 16:27:41,082 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 16:27:41,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:27:41,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 16:27:41,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:27:41,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-18 16:27:41,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:27:41,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-12-18 16:27:41,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:27:41,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-18 16:27:41,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:27:41,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-18 16:27:41,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:27:41,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-18 16:27:41,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:27:41,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-12-18 16:27:41,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:27:41,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:27:41,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:27:41,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-12-18 16:27:41,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:27:41,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-18 16:27:41,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:27:41,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-18 16:27:41,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:27:41,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-18 16:27:41,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:27:41,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-12-18 16:27:41,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:27:41,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-18 16:27:41,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:27:41,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-18 16:27:41,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:27:41,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-12-18 16:27:41,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:27:41,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-12-18 16:27:41,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:27:41,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-12-18 16:27:41,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:27:41,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-12-18 16:27:41,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:27:41,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2021-12-18 16:27:41,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:27:41,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-12-18 16:27:41,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:27:41,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-18 16:27:41,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:27:41,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-12-18 16:27:41,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:27:41,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-12-18 16:27:41,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:27:41,372 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 16:27:41,372 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 16:27:41,372 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [332870015] [2021-12-18 16:27:41,372 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [332870015] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 16:27:41,372 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 16:27:41,372 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-18 16:27:41,373 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1998202192] [2021-12-18 16:27:41,373 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 16:27:41,373 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 16:27:41,373 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 16:27:41,374 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 16:27:41,374 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-18 16:27:41,377 INFO L87 Difference]: Start difference. First operand 3221 states and 4368 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 16:27:44,927 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:27:46,976 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-12-18 16:27:49,117 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-12-18 16:27:51,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 16:27:51,953 INFO L93 Difference]: Finished difference Result 3221 states and 4368 transitions. [2021-12-18 16:27:51,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-18 16:27:51,953 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 16:27:51,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 16:27:51,964 INFO L225 Difference]: With dead ends: 3221 [2021-12-18 16:27:51,965 INFO L226 Difference]: Without dead ends: 3219 [2021-12-18 16:27:51,966 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 16:27:51,967 INFO L933 BasicCegarLoop]: 1966 mSDtfsCounter, 3617 mSDsluCounter, 1572 mSDsCounter, 0 mSdLazyCounter, 1879 mSolverCounterSat, 1788 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3773 SdHoareTripleChecker+Valid, 3538 SdHoareTripleChecker+Invalid, 3670 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1788 IncrementalHoareTripleChecker+Valid, 1879 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.3s IncrementalHoareTripleChecker+Time [2021-12-18 16:27:51,967 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3773 Valid, 3538 Invalid, 3670 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1788 Valid, 1879 Invalid, 3 Unknown, 0 Unchecked, 10.3s Time] [2021-12-18 16:27:51,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3219 states. [2021-12-18 16:27:52,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3219 to 3219. [2021-12-18 16:27:52,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3219 states, 2202 states have (on average 1.229336966394187) internal successors, (2707), 2304 states have internal predecessors, (2707), 769 states have call successors, (769), 205 states have call predecessors, (769), 233 states have return successors, (890), 752 states have call predecessors, (890), 767 states have call successors, (890) [2021-12-18 16:27:52,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3219 states to 3219 states and 4366 transitions. [2021-12-18 16:27:52,187 INFO L78 Accepts]: Start accepts. Automaton has 3219 states and 4366 transitions. Word has length 157 [2021-12-18 16:27:52,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 16:27:52,187 INFO L470 AbstractCegarLoop]: Abstraction has 3219 states and 4366 transitions. [2021-12-18 16:27:52,187 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 16:27:52,187 INFO L276 IsEmpty]: Start isEmpty. Operand 3219 states and 4366 transitions. [2021-12-18 16:27:52,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2021-12-18 16:27:52,190 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 16:27:52,190 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 16:27:52,190 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-12-18 16:27:52,191 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ldv_linux_net_rtnetlink_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-12-18 16:27:52,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 16:27:52,191 INFO L85 PathProgramCache]: Analyzing trace with hash -668325059, now seen corresponding path program 1 times [2021-12-18 16:27:52,191 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 16:27:52,191 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1361175103] [2021-12-18 16:27:52,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 16:27:52,192 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 16:27:52,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:27:52,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 16:27:52,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:27:52,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-18 16:27:52,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:27:52,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-12-18 16:27:52,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:27:52,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-18 16:27:52,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:27:52,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-18 16:27:52,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:27:52,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-18 16:27:52,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:27:52,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-12-18 16:27:52,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:27:52,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:27:52,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:27:52,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-12-18 16:27:52,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:27:52,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-18 16:27:52,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:27:52,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-18 16:27:52,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:27:52,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-18 16:27:52,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:27:52,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-12-18 16:27:52,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:27:52,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-18 16:27:52,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:27:52,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-18 16:27:52,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:27:52,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-12-18 16:27:52,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:27:52,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-12-18 16:27:52,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:27:52,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-12-18 16:27:52,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:27:52,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-12-18 16:27:52,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:27:52,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2021-12-18 16:27:52,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:27:52,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-12-18 16:27:52,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:27:52,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-18 16:27:52,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:27:52,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-12-18 16:27:52,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:27:52,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-12-18 16:27:52,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:27:52,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-12-18 16:27:52,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:27:52,437 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 16:27:52,437 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 16:27:52,437 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1361175103] [2021-12-18 16:27:52,438 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1361175103] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 16:27:52,438 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 16:27:52,438 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-18 16:27:52,438 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1494992636] [2021-12-18 16:27:52,438 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 16:27:52,439 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 16:27:52,439 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 16:27:52,440 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 16:27:52,440 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-18 16:27:52,440 INFO L87 Difference]: Start difference. First operand 3219 states and 4366 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 16:27:56,571 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-12-18 16:27:59,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 16:27:59,309 INFO L93 Difference]: Finished difference Result 3219 states and 4366 transitions. [2021-12-18 16:27:59,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-18 16:27:59,310 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 16:27:59,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 16:27:59,320 INFO L225 Difference]: With dead ends: 3219 [2021-12-18 16:27:59,320 INFO L226 Difference]: Without dead ends: 3217 [2021-12-18 16:27:59,322 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 16:27:59,323 INFO L933 BasicCegarLoop]: 1964 mSDtfsCounter, 3611 mSDsluCounter, 1572 mSDsCounter, 0 mSdLazyCounter, 1879 mSolverCounterSat, 1788 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3766 SdHoareTripleChecker+Valid, 3536 SdHoareTripleChecker+Invalid, 3668 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1788 IncrementalHoareTripleChecker+Valid, 1879 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2021-12-18 16:27:59,323 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3766 Valid, 3536 Invalid, 3668 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1788 Valid, 1879 Invalid, 1 Unknown, 0 Unchecked, 6.6s Time] [2021-12-18 16:27:59,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3217 states. [2021-12-18 16:27:59,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3217 to 3217. [2021-12-18 16:27:59,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3217 states, 2201 states have (on average 1.2289868241708315) internal successors, (2705), 2302 states have internal predecessors, (2705), 769 states have call successors, (769), 205 states have call predecessors, (769), 233 states have return successors, (890), 752 states have call predecessors, (890), 767 states have call successors, (890) [2021-12-18 16:27:59,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3217 states to 3217 states and 4364 transitions. [2021-12-18 16:27:59,512 INFO L78 Accepts]: Start accepts. Automaton has 3217 states and 4364 transitions. Word has length 163 [2021-12-18 16:27:59,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 16:27:59,513 INFO L470 AbstractCegarLoop]: Abstraction has 3217 states and 4364 transitions. [2021-12-18 16:27:59,513 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 16:27:59,513 INFO L276 IsEmpty]: Start isEmpty. Operand 3217 states and 4364 transitions. [2021-12-18 16:27:59,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2021-12-18 16:27:59,517 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 16:27:59,517 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 7, 7, 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, 1, 1, 1] [2021-12-18 16:27:59,517 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-12-18 16:27:59,517 INFO L402 AbstractCegarLoop]: === Iteration 22 === 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 31 more)] === [2021-12-18 16:27:59,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 16:27:59,518 INFO L85 PathProgramCache]: Analyzing trace with hash -1216103827, now seen corresponding path program 1 times [2021-12-18 16:27:59,518 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 16:27:59,518 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1104789896] [2021-12-18 16:27:59,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 16:27:59,518 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 16:27:59,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:27:59,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 16:27:59,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:27:59,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-18 16:27:59,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:27:59,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-12-18 16:27:59,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:27:59,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-18 16:27:59,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:27:59,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-18 16:27:59,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:27:59,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-18 16:27:59,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:27:59,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-12-18 16:27:59,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:27:59,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:27:59,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:27:59,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-12-18 16:27:59,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:27:59,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-18 16:27:59,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:27:59,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-18 16:27:59,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:27:59,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-12-18 16:27:59,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:27:59,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:27:59,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:27:59,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:27:59,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:27:59,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 16:27:59,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:27:59,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-12-18 16:27:59,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:27:59,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-18 16:27:59,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:27:59,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:27:59,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:27:59,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:27:59,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:27:59,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 16:27:59,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:27:59,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-12-18 16:27:59,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:27:59,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-12-18 16:27:59,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:27:59,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:27:59,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:27:59,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:27:59,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:27:59,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 16:27:59,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:27:59,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2021-12-18 16:27:59,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:27:59,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2021-12-18 16:27:59,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:27:59,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:27:59,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:27:59,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:27:59,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:27:59,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:27:59,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:27:59,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 16:27:59,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:27:59,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-18 16:27:59,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:27:59,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:27:59,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:27:59,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-18 16:27:59,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:27:59,876 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 276 trivial. 0 not checked. [2021-12-18 16:27:59,876 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 16:27:59,877 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1104789896] [2021-12-18 16:27:59,877 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1104789896] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 16:27:59,877 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 16:27:59,877 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-18 16:27:59,877 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1120662697] [2021-12-18 16:27:59,877 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 16:27:59,878 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-18 16:27:59,878 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 16:27:59,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-18 16:27:59,879 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-18 16:27:59,879 INFO L87 Difference]: Start difference. First operand 3217 states and 4364 transitions. Second operand has 7 states, 7 states have (on average 12.714285714285714) internal successors, (89), 4 states have internal predecessors, (89), 2 states have call successors, (31), 5 states have call predecessors, (31), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) [2021-12-18 16:28:04,547 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:28:05,785 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:28:07,815 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:28:09,904 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:28:13,712 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:28:15,613 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:28:17,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 16:28:17,944 INFO L93 Difference]: Finished difference Result 6390 states and 8774 transitions. [2021-12-18 16:28:17,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-18 16:28:17,946 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.714285714285714) internal successors, (89), 4 states have internal predecessors, (89), 2 states have call successors, (31), 5 states have call predecessors, (31), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) Word has length 211 [2021-12-18 16:28:17,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 16:28:17,958 INFO L225 Difference]: With dead ends: 6390 [2021-12-18 16:28:17,958 INFO L226 Difference]: Without dead ends: 3319 [2021-12-18 16:28:17,968 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2021-12-18 16:28:17,969 INFO L933 BasicCegarLoop]: 1957 mSDtfsCounter, 3000 mSDsluCounter, 2867 mSDsCounter, 0 mSdLazyCounter, 4114 mSolverCounterSat, 2072 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3000 SdHoareTripleChecker+Valid, 4824 SdHoareTripleChecker+Invalid, 6189 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2072 IncrementalHoareTripleChecker+Valid, 4114 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.7s IncrementalHoareTripleChecker+Time [2021-12-18 16:28:17,969 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3000 Valid, 4824 Invalid, 6189 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2072 Valid, 4114 Invalid, 3 Unknown, 0 Unchecked, 17.7s Time] [2021-12-18 16:28:17,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3319 states. [2021-12-18 16:28:18,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3319 to 3223. [2021-12-18 16:28:18,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3223 states, 2207 states have (on average 1.228364295423652) internal successors, (2711), 2308 states have internal predecessors, (2711), 769 states have call successors, (769), 205 states have call predecessors, (769), 233 states have return successors, (890), 752 states have call predecessors, (890), 767 states have call successors, (890) [2021-12-18 16:28:18,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3223 states to 3223 states and 4370 transitions. [2021-12-18 16:28:18,157 INFO L78 Accepts]: Start accepts. Automaton has 3223 states and 4370 transitions. Word has length 211 [2021-12-18 16:28:18,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 16:28:18,158 INFO L470 AbstractCegarLoop]: Abstraction has 3223 states and 4370 transitions. [2021-12-18 16:28:18,158 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.714285714285714) internal successors, (89), 4 states have internal predecessors, (89), 2 states have call successors, (31), 5 states have call predecessors, (31), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) [2021-12-18 16:28:18,158 INFO L276 IsEmpty]: Start isEmpty. Operand 3223 states and 4370 transitions. [2021-12-18 16:28:18,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2021-12-18 16:28:18,162 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 16:28:18,162 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 7, 7, 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, 1, 1, 1] [2021-12-18 16:28:18,162 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-12-18 16:28:18,162 INFO L402 AbstractCegarLoop]: === Iteration 23 === 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 31 more)] === [2021-12-18 16:28:18,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 16:28:18,163 INFO L85 PathProgramCache]: Analyzing trace with hash -2025450453, now seen corresponding path program 1 times [2021-12-18 16:28:18,163 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 16:28:18,163 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1132089077] [2021-12-18 16:28:18,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 16:28:18,163 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 16:28:18,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:28:18,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 16:28:18,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:28:18,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-18 16:28:18,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:28:18,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-12-18 16:28:18,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:28:18,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-18 16:28:18,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:28:18,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-18 16:28:18,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:28:18,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-18 16:28:18,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:28:18,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-12-18 16:28:18,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:28:18,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:28:18,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:28:18,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-12-18 16:28:18,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:28:18,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-18 16:28:18,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:28:18,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-18 16:28:18,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:28:18,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-12-18 16:28:18,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:28:18,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:28:18,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:28:18,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:28:18,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:28:18,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 16:28:18,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:28:18,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-12-18 16:28:18,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:28:18,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-18 16:28:18,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:28:18,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:28:18,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:28:18,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:28:18,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:28:18,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 16:28:18,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:28:18,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-12-18 16:28:18,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:28:18,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-12-18 16:28:18,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:28:18,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:28:18,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:28:18,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:28:18,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:28:18,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 16:28:18,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:28:18,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2021-12-18 16:28:18,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:28:18,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2021-12-18 16:28:18,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:28:18,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:28:18,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:28:18,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:28:18,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:28:18,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:28:18,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:28:18,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 16:28:18,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:28:18,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-18 16:28:18,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:28:18,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:28:18,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:28:18,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-18 16:28:18,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:28:18,679 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 276 trivial. 0 not checked. [2021-12-18 16:28:18,679 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 16:28:18,679 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1132089077] [2021-12-18 16:28:18,679 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1132089077] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 16:28:18,680 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 16:28:18,680 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-18 16:28:18,681 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1188443538] [2021-12-18 16:28:18,681 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 16:28:18,682 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-18 16:28:18,682 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 16:28:18,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-18 16:28:18,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-12-18 16:28:18,682 INFO L87 Difference]: Start difference. First operand 3223 states and 4370 transitions. Second operand has 8 states, 8 states have (on average 11.125) internal successors, (89), 5 states have internal predecessors, (89), 3 states have call successors, (31), 5 states have call predecessors, (31), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2021-12-18 16:28:23,705 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:28:26,777 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:28:28,879 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:28:30,985 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:28:35,037 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:28:37,805 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:28:39,836 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:28:41,872 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:28:47,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 16:28:47,293 INFO L93 Difference]: Finished difference Result 6399 states and 8765 transitions. [2021-12-18 16:28:47,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-18 16:28:47,294 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.125) internal successors, (89), 5 states have internal predecessors, (89), 3 states have call successors, (31), 5 states have call predecessors, (31), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 211 [2021-12-18 16:28:47,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 16:28:47,305 INFO L225 Difference]: With dead ends: 6399 [2021-12-18 16:28:47,305 INFO L226 Difference]: Without dead ends: 3322 [2021-12-18 16:28:47,316 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=157, Unknown=0, NotChecked=0, Total=210 [2021-12-18 16:28:47,317 INFO L933 BasicCegarLoop]: 1972 mSDtfsCounter, 2959 mSDsluCounter, 3690 mSDsCounter, 0 mSdLazyCounter, 5608 mSolverCounterSat, 2067 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 26.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2959 SdHoareTripleChecker+Valid, 5662 SdHoareTripleChecker+Invalid, 7682 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2067 IncrementalHoareTripleChecker+Valid, 5608 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 28.2s IncrementalHoareTripleChecker+Time [2021-12-18 16:28:47,317 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2959 Valid, 5662 Invalid, 7682 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2067 Valid, 5608 Invalid, 7 Unknown, 0 Unchecked, 28.2s Time] [2021-12-18 16:28:47,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3322 states. [2021-12-18 16:28:47,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3322 to 3240. [2021-12-18 16:28:47,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3240 states, 2221 states have (on average 1.2273750562809544) internal successors, (2726), 2324 states have internal predecessors, (2726), 770 states have call successors, (770), 205 states have call predecessors, (770), 235 states have return successors, (895), 753 states have call predecessors, (895), 768 states have call successors, (895) [2021-12-18 16:28:47,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3240 states to 3240 states and 4391 transitions. [2021-12-18 16:28:47,504 INFO L78 Accepts]: Start accepts. Automaton has 3240 states and 4391 transitions. Word has length 211 [2021-12-18 16:28:47,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 16:28:47,504 INFO L470 AbstractCegarLoop]: Abstraction has 3240 states and 4391 transitions. [2021-12-18 16:28:47,505 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.125) internal successors, (89), 5 states have internal predecessors, (89), 3 states have call successors, (31), 5 states have call predecessors, (31), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2021-12-18 16:28:47,505 INFO L276 IsEmpty]: Start isEmpty. Operand 3240 states and 4391 transitions. [2021-12-18 16:28:47,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2021-12-18 16:28:47,508 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 16:28:47,508 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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] [2021-12-18 16:28:47,508 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-12-18 16:28:47,509 INFO L402 AbstractCegarLoop]: === Iteration 24 === 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 31 more)] === [2021-12-18 16:28:47,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 16:28:47,509 INFO L85 PathProgramCache]: Analyzing trace with hash -1245480085, now seen corresponding path program 1 times [2021-12-18 16:28:47,509 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 16:28:47,509 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1083780643] [2021-12-18 16:28:47,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 16:28:47,510 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 16:28:47,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:28:47,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 16:28:47,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:28:47,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-18 16:28:47,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:28:47,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-12-18 16:28:47,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:28:47,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-18 16:28:47,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:28:47,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-12-18 16:28:47,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:28:47,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:28:47,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:28:47,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:28:47,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:28:47,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 16:28:47,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:28:47,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-18 16:28:47,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:28:47,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:28:47,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:28:47,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:28:47,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:28:47,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 16:28:47,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:28:47,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-12-18 16:28:47,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:28:47,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:28:47,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:28:47,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:28:47,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:28:47,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 16:28:47,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:28:47,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-12-18 16:28:47,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:28:47,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:28:47,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:28:47,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:28:47,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:28:47,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 16:28:47,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:28:47,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-12-18 16:28:47,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:28:47,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:28:47,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:28:47,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:28:47,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:28:47,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 16:28:47,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:28:47,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-12-18 16:28:47,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:28:47,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-12-18 16:28:47,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:28:47,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-12-18 16:28:47,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:28:47,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-12-18 16:28:47,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:28:47,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:28:47,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:28:47,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:28:47,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:28:47,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:28:47,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:28:47,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 16:28:47,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:28:47,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-18 16:28:47,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:28:47,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:28:47,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:28:47,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-12-18 16:28:47,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:28:47,832 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 383 trivial. 0 not checked. [2021-12-18 16:28:47,832 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 16:28:47,832 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1083780643] [2021-12-18 16:28:47,832 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1083780643] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 16:28:47,832 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 16:28:47,832 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-18 16:28:47,832 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [198863385] [2021-12-18 16:28:47,833 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 16:28:47,833 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-18 16:28:47,833 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 16:28:47,834 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-18 16:28:47,834 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-12-18 16:28:47,834 INFO L87 Difference]: Start difference. First operand 3240 states and 4391 transitions. Second operand has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 3 states have internal predecessors, (75), 2 states have call successors, (23), 5 states have call predecessors, (23), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2021-12-18 16:28:52,338 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:28:55,891 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:28:57,941 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:29:02,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 16:29:02,197 INFO L93 Difference]: Finished difference Result 6564 states and 8941 transitions. [2021-12-18 16:29:02,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-18 16:29:02,198 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 3 states have internal predecessors, (75), 2 states have call successors, (23), 5 states have call predecessors, (23), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 206 [2021-12-18 16:29:02,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 16:29:02,226 INFO L225 Difference]: With dead ends: 6564 [2021-12-18 16:29:02,226 INFO L226 Difference]: Without dead ends: 3484 [2021-12-18 16:29:02,247 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2021-12-18 16:29:02,248 INFO L933 BasicCegarLoop]: 1741 mSDtfsCounter, 4683 mSDsluCounter, 1222 mSDsCounter, 0 mSdLazyCounter, 3015 mSolverCounterSat, 2812 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4872 SdHoareTripleChecker+Valid, 2963 SdHoareTripleChecker+Invalid, 5830 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2812 IncrementalHoareTripleChecker+Valid, 3015 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.0s IncrementalHoareTripleChecker+Time [2021-12-18 16:29:02,248 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4872 Valid, 2963 Invalid, 5830 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2812 Valid, 3015 Invalid, 3 Unknown, 0 Unchecked, 14.0s Time] [2021-12-18 16:29:02,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3484 states. [2021-12-18 16:29:02,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3484 to 3234. [2021-12-18 16:29:02,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3234 states, 2216 states have (on average 1.2260830324909748) internal successors, (2717), 2318 states have internal predecessors, (2717), 770 states have call successors, (770), 205 states have call predecessors, (770), 235 states have return successors, (895), 753 states have call predecessors, (895), 768 states have call successors, (895) [2021-12-18 16:29:02,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3234 states to 3234 states and 4382 transitions. [2021-12-18 16:29:02,656 INFO L78 Accepts]: Start accepts. Automaton has 3234 states and 4382 transitions. Word has length 206 [2021-12-18 16:29:02,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 16:29:02,657 INFO L470 AbstractCegarLoop]: Abstraction has 3234 states and 4382 transitions. [2021-12-18 16:29:02,657 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 3 states have internal predecessors, (75), 2 states have call successors, (23), 5 states have call predecessors, (23), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2021-12-18 16:29:02,657 INFO L276 IsEmpty]: Start isEmpty. Operand 3234 states and 4382 transitions. [2021-12-18 16:29:02,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2021-12-18 16:29:02,660 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 16:29:02,661 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 16:29:02,661 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-12-18 16:29:02,661 INFO L402 AbstractCegarLoop]: === Iteration 25 === 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 31 more)] === [2021-12-18 16:29:02,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 16:29:02,661 INFO L85 PathProgramCache]: Analyzing trace with hash -1679691383, now seen corresponding path program 1 times [2021-12-18 16:29:02,662 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 16:29:02,662 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2087463027] [2021-12-18 16:29:02,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 16:29:02,662 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 16:29:02,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:29:02,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 16:29:02,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:29:02,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-18 16:29:02,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:29:02,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-12-18 16:29:02,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:29:02,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-18 16:29:02,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:29:02,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-18 16:29:02,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:29:02,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-18 16:29:02,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:29:02,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-12-18 16:29:02,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:29:02,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:29:02,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:29:02,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-12-18 16:29:02,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:29:02,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-18 16:29:02,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:29:02,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-18 16:29:02,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:29:02,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-18 16:29:02,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:29:02,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-12-18 16:29:02,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:29:02,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-18 16:29:02,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:29:02,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-18 16:29:03,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:29:03,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-12-18 16:29:03,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:29:03,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-12-18 16:29:03,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:29:03,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-12-18 16:29:03,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:29:03,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-12-18 16:29:03,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:29:03,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2021-12-18 16:29:03,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:29:03,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-12-18 16:29:03,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:29:03,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-18 16:29:03,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:29:03,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-12-18 16:29:03,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:29:03,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-12-18 16:29:03,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:29:03,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-12-18 16:29:03,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:29:03,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2021-12-18 16:29:03,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:29:03,128 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 16:29:03,128 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 16:29:03,128 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2087463027] [2021-12-18 16:29:03,128 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2087463027] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 16:29:03,128 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 16:29:03,129 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-18 16:29:03,129 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1226388223] [2021-12-18 16:29:03,129 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 16:29:03,129 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 16:29:03,129 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 16:29:03,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 16:29:03,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-18 16:29:03,130 INFO L87 Difference]: Start difference. First operand 3234 states and 4382 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 16:29:07,545 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.75s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:29:09,651 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-12-18 16:29:12,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 16:29:12,624 INFO L93 Difference]: Finished difference Result 3234 states and 4382 transitions. [2021-12-18 16:29:12,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-18 16:29:12,625 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 16:29:12,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 16:29:12,634 INFO L225 Difference]: With dead ends: 3234 [2021-12-18 16:29:12,634 INFO L226 Difference]: Without dead ends: 3232 [2021-12-18 16:29:12,635 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2021-12-18 16:29:12,636 INFO L933 BasicCegarLoop]: 1957 mSDtfsCounter, 3600 mSDsluCounter, 1558 mSDsCounter, 0 mSdLazyCounter, 1876 mSolverCounterSat, 1788 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3754 SdHoareTripleChecker+Valid, 3515 SdHoareTripleChecker+Invalid, 3665 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1788 IncrementalHoareTripleChecker+Valid, 1876 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.2s IncrementalHoareTripleChecker+Time [2021-12-18 16:29:12,636 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3754 Valid, 3515 Invalid, 3665 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1788 Valid, 1876 Invalid, 1 Unknown, 0 Unchecked, 9.2s Time] [2021-12-18 16:29:12,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3232 states. [2021-12-18 16:29:12,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3232 to 3232. [2021-12-18 16:29:12,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3232 states, 2215 states have (on average 1.2257336343115124) internal successors, (2715), 2316 states have internal predecessors, (2715), 770 states have call successors, (770), 205 states have call predecessors, (770), 235 states have return successors, (895), 753 states have call predecessors, (895), 768 states have call successors, (895) [2021-12-18 16:29:12,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3232 states to 3232 states and 4380 transitions. [2021-12-18 16:29:12,884 INFO L78 Accepts]: Start accepts. Automaton has 3232 states and 4380 transitions. Word has length 169 [2021-12-18 16:29:12,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 16:29:12,885 INFO L470 AbstractCegarLoop]: Abstraction has 3232 states and 4380 transitions. [2021-12-18 16:29:12,886 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 16:29:12,886 INFO L276 IsEmpty]: Start isEmpty. Operand 3232 states and 4380 transitions. [2021-12-18 16:29:12,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2021-12-18 16:29:12,889 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 16:29:12,889 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 16:29:12,889 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-12-18 16:29:12,889 INFO L402 AbstractCegarLoop]: === Iteration 26 === 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 31 more)] === [2021-12-18 16:29:12,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 16:29:12,890 INFO L85 PathProgramCache]: Analyzing trace with hash -894887494, now seen corresponding path program 1 times [2021-12-18 16:29:12,890 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 16:29:12,890 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [57954126] [2021-12-18 16:29:12,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 16:29:12,890 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 16:29:12,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:29:13,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 16:29:13,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:29:13,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-18 16:29:13,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:29:13,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-12-18 16:29:13,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:29:13,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-18 16:29:13,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:29:13,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-12-18 16:29:13,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:29:13,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:29:13,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:29:13,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:29:13,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:29:13,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 16:29:13,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:29:13,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-18 16:29:13,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:29:13,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:29:13,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:29:13,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:29:13,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:29:13,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 16:29:13,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:29:13,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-12-18 16:29:13,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:29:13,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:29:13,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:29:13,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:29:13,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:29:13,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 16:29:13,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:29:13,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-12-18 16:29:13,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:29:13,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:29:13,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:29:13,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:29:13,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:29:13,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 16:29:13,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:29:13,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-12-18 16:29:13,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:29:13,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:29:13,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:29:13,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:29:13,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:29:13,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 16:29:13,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:29:13,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-12-18 16:29:13,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:29:13,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-12-18 16:29:13,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:29:13,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-12-18 16:29:13,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:29:13,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-12-18 16:29:13,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:29:13,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:29:13,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:29:13,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:29:13,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:29:13,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:29:13,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:29:13,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 16:29:13,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:29:13,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-18 16:29:13,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:29:13,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:29:13,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:29:13,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-12-18 16:29:13,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:29:13,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2021-12-18 16:29:13,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:29:13,264 INFO L134 CoverageAnalysis]: Checked inductivity of 386 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 384 trivial. 0 not checked. [2021-12-18 16:29:13,264 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 16:29:13,265 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [57954126] [2021-12-18 16:29:13,265 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [57954126] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-18 16:29:13,265 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1015128789] [2021-12-18 16:29:13,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 16:29:13,265 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-18 16:29:13,265 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-18 16:29:13,271 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 16:29:13,315 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 16:29:14,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:29:14,232 INFO L263 TraceCheckSpWp]: Trace formula consists of 2286 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-18 16:29:14,245 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-18 16:29:14,553 INFO L134 CoverageAnalysis]: Checked inductivity of 386 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 377 trivial. 0 not checked. [2021-12-18 16:29:14,554 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-18 16:29:14,554 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1015128789] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 16:29:14,554 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-18 16:29:14,554 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [10] total 11 [2021-12-18 16:29:14,554 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1779929010] [2021-12-18 16:29:14,554 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 16:29:14,555 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-18 16:29:14,555 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 16:29:14,555 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-18 16:29:14,555 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2021-12-18 16:29:14,555 INFO L87 Difference]: Start difference. First operand 3232 states and 4380 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2021-12-18 16:29:14,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 16:29:14,741 INFO L93 Difference]: Finished difference Result 6348 states and 8567 transitions. [2021-12-18 16:29:14,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-18 16:29:14,741 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 212 [2021-12-18 16:29:14,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 16:29:14,751 INFO L225 Difference]: With dead ends: 6348 [2021-12-18 16:29:14,751 INFO L226 Difference]: Without dead ends: 3282 [2021-12-18 16:29:14,762 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 288 GetRequests, 278 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2021-12-18 16:29:14,762 INFO L933 BasicCegarLoop]: 2256 mSDtfsCounter, 2124 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2124 SdHoareTripleChecker+Valid, 2323 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 16:29:14,763 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2124 Valid, 2323 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-18 16:29:14,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3282 states. [2021-12-18 16:29:15,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3282 to 3279. [2021-12-18 16:29:15,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3279 states, 2242 states have (on average 1.2225691347011596) internal successors, (2741), 2346 states have internal predecessors, (2741), 785 states have call successors, (785), 211 states have call predecessors, (785), 241 states have return successors, (910), 766 states have call predecessors, (910), 783 states have call successors, (910) [2021-12-18 16:29:15,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3279 states to 3279 states and 4436 transitions. [2021-12-18 16:29:15,040 INFO L78 Accepts]: Start accepts. Automaton has 3279 states and 4436 transitions. Word has length 212 [2021-12-18 16:29:15,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 16:29:15,040 INFO L470 AbstractCegarLoop]: Abstraction has 3279 states and 4436 transitions. [2021-12-18 16:29:15,040 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2021-12-18 16:29:15,041 INFO L276 IsEmpty]: Start isEmpty. Operand 3279 states and 4436 transitions. [2021-12-18 16:29:15,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2021-12-18 16:29:15,043 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 16:29:15,044 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 16:29:15,082 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-12-18 16:29:15,258 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,SelfDestructingSolverStorable25 [2021-12-18 16:29:15,259 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 31 more)] === [2021-12-18 16:29:15,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 16:29:15,260 INFO L85 PathProgramCache]: Analyzing trace with hash -1290330868, now seen corresponding path program 1 times [2021-12-18 16:29:15,260 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 16:29:15,260 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [729873799] [2021-12-18 16:29:15,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 16:29:15,260 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 16:29:15,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:29:15,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 16:29:15,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:29:15,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-18 16:29:15,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:29:15,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-12-18 16:29:15,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:29:15,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-18 16:29:15,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:29:15,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-18 16:29:15,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:29:15,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-18 16:29:15,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:29:15,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-12-18 16:29:15,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:29:15,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:29:15,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:29:15,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-12-18 16:29:15,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:29:15,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-18 16:29:15,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:29:15,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-18 16:29:15,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:29:15,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-18 16:29:15,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:29:15,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-12-18 16:29:15,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:29:15,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-18 16:29:15,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:29:15,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-18 16:29:15,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:29:15,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-12-18 16:29:15,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:29:15,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-12-18 16:29:15,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:29:15,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-12-18 16:29:15,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:29:15,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-12-18 16:29:15,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:29:15,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2021-12-18 16:29:15,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:29:15,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-12-18 16:29:15,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:29:15,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-18 16:29:15,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:29:15,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-12-18 16:29:15,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:29:15,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-12-18 16:29:15,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:29:15,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-12-18 16:29:15,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:29:15,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2021-12-18 16:29:15,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:29:15,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2021-12-18 16:29:15,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:29:15,543 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 16:29:15,544 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 16:29:15,544 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [729873799] [2021-12-18 16:29:15,544 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [729873799] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 16:29:15,544 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 16:29:15,544 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-18 16:29:15,544 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1985075577] [2021-12-18 16:29:15,544 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 16:29:15,545 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 16:29:15,545 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 16:29:15,546 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 16:29:15,546 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-18 16:29:15,546 INFO L87 Difference]: Start difference. First operand 3279 states and 4436 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 16:29:19,092 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:29:21,225 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-12-18 16:29:29,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 16:29:29,807 INFO L93 Difference]: Finished difference Result 6422 states and 8769 transitions. [2021-12-18 16:29:29,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-18 16:29:29,808 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 16:29:29,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 16:29:29,842 INFO L225 Difference]: With dead ends: 6422 [2021-12-18 16:29:29,855 INFO L226 Difference]: Without dead ends: 6420 [2021-12-18 16:29:29,860 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2021-12-18 16:29:29,861 INFO L933 BasicCegarLoop]: 2127 mSDtfsCounter, 5661 mSDsluCounter, 2542 mSDsCounter, 0 mSdLazyCounter, 3964 mSolverCounterSat, 3080 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5811 SdHoareTripleChecker+Valid, 4669 SdHoareTripleChecker+Invalid, 7045 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3080 IncrementalHoareTripleChecker+Valid, 3964 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.7s IncrementalHoareTripleChecker+Time [2021-12-18 16:29:29,863 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5811 Valid, 4669 Invalid, 7045 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3080 Valid, 3964 Invalid, 1 Unknown, 0 Unchecked, 13.7s Time] [2021-12-18 16:29:29,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6420 states. [2021-12-18 16:29:30,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6420 to 6385. [2021-12-18 16:29:30,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6385 states, 4371 states have (on average 1.222603523221231) internal successors, (5344), 4563 states have internal predecessors, (5344), 1529 states have call successors, (1529), 413 states have call predecessors, (1529), 474 states have return successors, (1865), 1493 states have call predecessors, (1865), 1527 states have call successors, (1865) [2021-12-18 16:29:30,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6385 states to 6385 states and 8738 transitions. [2021-12-18 16:29:30,484 INFO L78 Accepts]: Start accepts. Automaton has 6385 states and 8738 transitions. Word has length 175 [2021-12-18 16:29:30,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 16:29:30,485 INFO L470 AbstractCegarLoop]: Abstraction has 6385 states and 8738 transitions. [2021-12-18 16:29:30,485 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 16:29:30,485 INFO L276 IsEmpty]: Start isEmpty. Operand 6385 states and 8738 transitions. [2021-12-18 16:29:30,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2021-12-18 16:29:30,488 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 16:29:30,489 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 16:29:30,489 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2021-12-18 16:29:30,489 INFO L402 AbstractCegarLoop]: === Iteration 28 === 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 31 more)] === [2021-12-18 16:29:30,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 16:29:30,490 INFO L85 PathProgramCache]: Analyzing trace with hash 70262302, now seen corresponding path program 1 times [2021-12-18 16:29:30,490 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 16:29:30,490 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [76482404] [2021-12-18 16:29:30,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 16:29:30,490 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 16:29:30,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:29:30,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 16:29:30,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:29:30,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-18 16:29:30,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:29:30,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-12-18 16:29:30,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:29:30,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-18 16:29:30,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:29:30,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-18 16:29:30,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:29:30,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-18 16:29:30,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:29:30,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-12-18 16:29:30,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:29:30,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:29:30,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:29:30,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-12-18 16:29:30,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:29:30,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-18 16:29:30,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:29:30,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-18 16:29:30,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:29:30,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-18 16:29:30,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:29:30,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-12-18 16:29:30,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:29:30,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-18 16:29:30,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:29:30,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-18 16:29:30,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:29:30,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-12-18 16:29:30,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:29:30,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-12-18 16:29:30,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:29:30,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-12-18 16:29:30,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:29:30,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-12-18 16:29:30,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:29:30,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2021-12-18 16:29:30,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:29:30,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-12-18 16:29:30,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:29:30,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-18 16:29:30,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:29:30,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-12-18 16:29:30,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:29:30,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-12-18 16:29:30,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:29:30,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-12-18 16:29:30,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:29:30,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2021-12-18 16:29:30,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:29:30,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2021-12-18 16:29:30,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:29:30,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2021-12-18 16:29:30,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:29:30,936 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 16:29:30,936 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 16:29:30,937 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [76482404] [2021-12-18 16:29:30,937 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [76482404] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 16:29:30,937 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 16:29:30,937 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-18 16:29:30,937 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1175714418] [2021-12-18 16:29:30,937 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 16:29:30,938 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 16:29:30,938 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 16:29:30,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 16:29:30,938 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-18 16:29:30,938 INFO L87 Difference]: Start difference. First operand 6385 states and 8738 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 16:29:34,753 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:29:38,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 16:29:38,700 INFO L93 Difference]: Finished difference Result 6385 states and 8738 transitions. [2021-12-18 16:29:38,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-18 16:29:38,700 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 16:29:38,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 16:29:38,714 INFO L225 Difference]: With dead ends: 6385 [2021-12-18 16:29:38,714 INFO L226 Difference]: Without dead ends: 6383 [2021-12-18 16:29:38,716 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 16:29:38,717 INFO L933 BasicCegarLoop]: 1950 mSDtfsCounter, 3589 mSDsluCounter, 1544 mSDsCounter, 0 mSdLazyCounter, 1873 mSolverCounterSat, 1788 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3741 SdHoareTripleChecker+Valid, 3494 SdHoareTripleChecker+Invalid, 3662 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1788 IncrementalHoareTripleChecker+Valid, 1873 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.2s IncrementalHoareTripleChecker+Time [2021-12-18 16:29:38,717 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3741 Valid, 3494 Invalid, 3662 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1788 Valid, 1873 Invalid, 1 Unknown, 0 Unchecked, 7.2s Time] [2021-12-18 16:29:38,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6383 states. [2021-12-18 16:29:39,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6383 to 6383. [2021-12-18 16:29:39,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6383 states, 4370 states have (on average 1.222425629290618) internal successors, (5342), 4561 states have internal predecessors, (5342), 1529 states have call successors, (1529), 413 states have call predecessors, (1529), 474 states have return successors, (1865), 1493 states have call predecessors, (1865), 1527 states have call successors, (1865) [2021-12-18 16:29:39,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6383 states to 6383 states and 8736 transitions. [2021-12-18 16:29:39,168 INFO L78 Accepts]: Start accepts. Automaton has 6383 states and 8736 transitions. Word has length 181 [2021-12-18 16:29:39,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 16:29:39,169 INFO L470 AbstractCegarLoop]: Abstraction has 6383 states and 8736 transitions. [2021-12-18 16:29:39,169 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 16:29:39,169 INFO L276 IsEmpty]: Start isEmpty. Operand 6383 states and 8736 transitions. [2021-12-18 16:29:39,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 290 [2021-12-18 16:29:39,173 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 16:29:39,173 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 14, 9, 9, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:29:39,174 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2021-12-18 16:29:39,174 INFO L402 AbstractCegarLoop]: === Iteration 29 === 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 31 more)] === [2021-12-18 16:29:39,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 16:29:39,175 INFO L85 PathProgramCache]: Analyzing trace with hash -71222668, now seen corresponding path program 1 times [2021-12-18 16:29:39,175 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 16:29:39,175 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1864515450] [2021-12-18 16:29:39,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 16:29:39,175 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 16:29:39,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:29:39,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 16:29:39,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:29:39,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-18 16:29:39,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:29:39,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-12-18 16:29:39,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:29:39,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-18 16:29:39,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:29:39,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-18 16:29:39,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:29:39,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-18 16:29:39,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:29:39,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-12-18 16:29:39,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:29:39,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:29:39,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:29:39,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-12-18 16:29:39,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:29:39,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-18 16:29:39,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:29:39,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-18 16:29:39,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:29:39,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-12-18 16:29:39,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:29:39,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:29:39,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:29:39,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:29:39,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:29:39,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 16:29:39,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:29:39,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-12-18 16:29:39,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:29:39,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2021-12-18 16:29:39,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:29:39,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:29:39,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:29:39,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:29:39,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:29:39,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 16:29:39,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:29:39,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-12-18 16:29:39,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:29:39,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2021-12-18 16:29:39,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:29:39,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:29:39,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:29:39,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:29:39,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:29:39,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 16:29:39,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:29:39,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2021-12-18 16:29:39,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:29:39,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2021-12-18 16:29:39,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:29:39,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:29:39,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:29:39,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:29:39,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:29:39,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 16:29:39,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:29:39,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2021-12-18 16:29:39,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:29:39,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2021-12-18 16:29:39,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:29:39,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:29:39,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:29:39,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:29:39,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:29:39,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 16:29:39,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:29:39,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2021-12-18 16:29:39,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:29:39,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2021-12-18 16:29:39,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:29:39,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 16:29:39,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:29:39,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:29:39,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:29:39,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:29:39,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:29:39,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:29:39,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:29:39,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 16:29:39,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:29:39,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-18 16:29:39,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:29:39,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:29:39,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:29:39,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-18 16:29:39,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:29:39,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 274 [2021-12-18 16:29:39,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:29:39,833 INFO L134 CoverageAnalysis]: Checked inductivity of 582 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 582 trivial. 0 not checked. [2021-12-18 16:29:39,833 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 16:29:39,833 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1864515450] [2021-12-18 16:29:39,833 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1864515450] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 16:29:39,833 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 16:29:39,834 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-18 16:29:39,834 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [449502663] [2021-12-18 16:29:39,834 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 16:29:39,834 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-18 16:29:39,834 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 16:29:39,835 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-18 16:29:39,835 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2021-12-18 16:29:39,835 INFO L87 Difference]: Start difference. First operand 6383 states and 8736 transitions. Second operand has 9 states, 9 states have (on average 12.444444444444445) internal successors, (112), 4 states have internal predecessors, (112), 2 states have call successors, (40), 7 states have call predecessors, (40), 1 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) [2021-12-18 16:29:45,275 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:29:47,765 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:29:49,965 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:29:52,127 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-12-18 16:29:54,272 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-12-18 16:29:58,511 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:30:00,550 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:30:06,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 16:30:06,143 INFO L93 Difference]: Finished difference Result 6925 states and 9599 transitions. [2021-12-18 16:30:06,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-12-18 16:30:06,144 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.444444444444445) internal successors, (112), 4 states have internal predecessors, (112), 2 states have call successors, (40), 7 states have call predecessors, (40), 1 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) Word has length 289 [2021-12-18 16:30:06,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 16:30:06,163 INFO L225 Difference]: With dead ends: 6925 [2021-12-18 16:30:06,163 INFO L226 Difference]: Without dead ends: 6923 [2021-12-18 16:30:06,165 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 96 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=109, Invalid=233, Unknown=0, NotChecked=0, Total=342 [2021-12-18 16:30:06,166 INFO L933 BasicCegarLoop]: 1881 mSDtfsCounter, 4633 mSDsluCounter, 3145 mSDsCounter, 0 mSdLazyCounter, 5445 mSolverCounterSat, 2805 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 24.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4792 SdHoareTripleChecker+Valid, 5026 SdHoareTripleChecker+Invalid, 8257 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2805 IncrementalHoareTripleChecker+Valid, 5445 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 25.5s IncrementalHoareTripleChecker+Time [2021-12-18 16:30:06,166 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4792 Valid, 5026 Invalid, 8257 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2805 Valid, 5445 Invalid, 7 Unknown, 0 Unchecked, 25.5s Time] [2021-12-18 16:30:06,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6923 states. [2021-12-18 16:30:06,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6923 to 6429. [2021-12-18 16:30:06,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6429 states, 4403 states have (on average 1.2198501022030435) internal successors, (5371), 4593 states have internal predecessors, (5371), 1529 states have call successors, (1529), 427 states have call predecessors, (1529), 488 states have return successors, (1865), 1493 states have call predecessors, (1865), 1527 states have call successors, (1865) [2021-12-18 16:30:06,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6429 states to 6429 states and 8765 transitions. [2021-12-18 16:30:06,603 INFO L78 Accepts]: Start accepts. Automaton has 6429 states and 8765 transitions. Word has length 289 [2021-12-18 16:30:06,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 16:30:06,604 INFO L470 AbstractCegarLoop]: Abstraction has 6429 states and 8765 transitions. [2021-12-18 16:30:06,604 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.444444444444445) internal successors, (112), 4 states have internal predecessors, (112), 2 states have call successors, (40), 7 states have call predecessors, (40), 1 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) [2021-12-18 16:30:06,604 INFO L276 IsEmpty]: Start isEmpty. Operand 6429 states and 8765 transitions. [2021-12-18 16:30:06,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2021-12-18 16:30:06,608 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 16:30:06,609 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 16:30:06,609 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2021-12-18 16:30:06,609 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 31 more)] === [2021-12-18 16:30:06,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 16:30:06,609 INFO L85 PathProgramCache]: Analyzing trace with hash -25657894, now seen corresponding path program 1 times [2021-12-18 16:30:06,610 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 16:30:06,610 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [275434496] [2021-12-18 16:30:06,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 16:30:06,610 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 16:30:06,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:30:06,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 16:30:06,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:30:06,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-18 16:30:06,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:30:06,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-12-18 16:30:06,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:30:06,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-18 16:30:06,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:30:06,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-18 16:30:06,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:30:06,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-18 16:30:06,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:30:06,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-12-18 16:30:06,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:30:06,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:30:06,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:30:06,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-12-18 16:30:06,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:30:06,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-18 16:30:06,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:30:06,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-18 16:30:06,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:30:06,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-18 16:30:06,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:30:06,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-12-18 16:30:06,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:30:06,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-18 16:30:06,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:30:06,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-18 16:30:06,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:30:06,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-12-18 16:30:06,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:30:06,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-12-18 16:30:06,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:30:06,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-12-18 16:30:06,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:30:06,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-12-18 16:30:06,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:30:06,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2021-12-18 16:30:06,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:30:06,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-12-18 16:30:06,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:30:06,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-18 16:30:06,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:30:06,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-12-18 16:30:06,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:30:06,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-12-18 16:30:06,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:30:06,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-12-18 16:30:06,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:30:06,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2021-12-18 16:30:06,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:30:06,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2021-12-18 16:30:06,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:30:07,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2021-12-18 16:30:07,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:30:07,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2021-12-18 16:30:07,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:30:07,039 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 16:30:07,040 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 16:30:07,040 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [275434496] [2021-12-18 16:30:07,040 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [275434496] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 16:30:07,040 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 16:30:07,040 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-18 16:30:07,040 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [738102474] [2021-12-18 16:30:07,040 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 16:30:07,041 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 16:30:07,041 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 16:30:07,041 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 16:30:07,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-18 16:30:07,042 INFO L87 Difference]: Start difference. First operand 6429 states and 8765 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 16:30:10,861 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.62s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:30:12,921 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-12-18 16:30:21,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 16:30:21,286 INFO L93 Difference]: Finished difference Result 12722 states and 17605 transitions. [2021-12-18 16:30:21,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-12-18 16:30:21,286 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 16:30:21,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 16:30:21,317 INFO L225 Difference]: With dead ends: 12722 [2021-12-18 16:30:21,317 INFO L226 Difference]: Without dead ends: 12533 [2021-12-18 16:30:21,324 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 16:30:21,325 INFO L933 BasicCegarLoop]: 2181 mSDtfsCounter, 5556 mSDsluCounter, 2572 mSDsCounter, 0 mSdLazyCounter, 4003 mSolverCounterSat, 3052 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5703 SdHoareTripleChecker+Valid, 4753 SdHoareTripleChecker+Invalid, 7056 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3052 IncrementalHoareTripleChecker+Valid, 4003 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.3s IncrementalHoareTripleChecker+Time [2021-12-18 16:30:21,325 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5703 Valid, 4753 Invalid, 7056 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3052 Valid, 4003 Invalid, 1 Unknown, 0 Unchecked, 13.3s Time] [2021-12-18 16:30:21,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12533 states. [2021-12-18 16:30:22,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12533 to 12509. [2021-12-18 16:30:22,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12509 states, 8582 states have (on average 1.221510137497087) internal successors, (10483), 8942 states have internal predecessors, (10483), 2971 states have call successors, (2971), 825 states have call predecessors, (2971), 947 states have return successors, (3905), 2905 states have call predecessors, (3905), 2967 states have call successors, (3905) [2021-12-18 16:30:22,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12509 states to 12509 states and 17359 transitions. [2021-12-18 16:30:22,222 INFO L78 Accepts]: Start accepts. Automaton has 12509 states and 17359 transitions. Word has length 187 [2021-12-18 16:30:22,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 16:30:22,222 INFO L470 AbstractCegarLoop]: Abstraction has 12509 states and 17359 transitions. [2021-12-18 16:30:22,222 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 16:30:22,222 INFO L276 IsEmpty]: Start isEmpty. Operand 12509 states and 17359 transitions. [2021-12-18 16:30:22,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2021-12-18 16:30:22,227 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 16:30:22,227 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 7, 7, 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, 1, 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 16:30:22,227 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2021-12-18 16:30:22,227 INFO L402 AbstractCegarLoop]: === Iteration 31 === 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 31 more)] === [2021-12-18 16:30:22,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 16:30:22,228 INFO L85 PathProgramCache]: Analyzing trace with hash -1524638335, now seen corresponding path program 1 times [2021-12-18 16:30:22,228 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 16:30:22,228 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [65253390] [2021-12-18 16:30:22,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 16:30:22,228 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 16:30:22,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:30:22,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 16:30:22,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:30:22,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-18 16:30:22,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:30:22,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-12-18 16:30:22,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:30:22,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-18 16:30:22,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:30:22,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-18 16:30:22,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:30:22,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-18 16:30:22,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:30:22,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-12-18 16:30:22,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:30:22,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:30:22,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:30:22,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-12-18 16:30:22,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:30:22,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-18 16:30:22,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:30:22,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-18 16:30:22,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:30:22,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-12-18 16:30:22,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:30:22,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:30:22,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:30:22,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:30:22,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:30:22,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 16:30:22,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:30:22,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-12-18 16:30:22,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:30:22,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-18 16:30:22,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:30:22,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:30:22,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:30:22,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:30:22,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:30:22,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 16:30:22,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:30:22,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-12-18 16:30:22,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:30:22,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-12-18 16:30:22,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:30:22,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:30:22,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:30:22,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:30:22,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:30:22,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 16:30:22,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:30:22,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2021-12-18 16:30:22,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:30:22,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2021-12-18 16:30:22,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:30:22,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:30:22,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:30:22,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:30:22,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:30:22,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:30:22,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:30:22,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 16:30:22,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:30:22,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-18 16:30:22,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:30:22,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:30:22,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:30:22,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-18 16:30:22,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:30:22,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2021-12-18 16:30:22,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:30:22,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2021-12-18 16:30:22,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:30:22,533 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 276 trivial. 0 not checked. [2021-12-18 16:30:22,533 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 16:30:22,534 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [65253390] [2021-12-18 16:30:22,534 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [65253390] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 16:30:22,534 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 16:30:22,534 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-18 16:30:22,534 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1054694658] [2021-12-18 16:30:22,534 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 16:30:22,535 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-18 16:30:22,535 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 16:30:22,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-18 16:30:22,535 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-12-18 16:30:22,535 INFO L87 Difference]: Start difference. First operand 12509 states and 17359 transitions. Second operand has 8 states, 8 states have (on average 13.375) internal successors, (107), 4 states have internal predecessors, (107), 3 states have call successors, (33), 6 states have call predecessors, (33), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2021-12-18 16:30:26,973 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:30:32,174 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:30:34,294 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:30:36,438 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-12-18 16:30:38,547 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-12-18 16:30:42,335 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:30:44,382 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:30:51,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 16:30:51,287 INFO L93 Difference]: Finished difference Result 28068 states and 40848 transitions. [2021-12-18 16:30:51,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-12-18 16:30:51,288 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 13.375) internal successors, (107), 4 states have internal predecessors, (107), 3 states have call successors, (33), 6 states have call predecessors, (33), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) Word has length 233 [2021-12-18 16:30:51,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 16:30:51,334 INFO L225 Difference]: With dead ends: 28068 [2021-12-18 16:30:51,334 INFO L226 Difference]: Without dead ends: 15963 [2021-12-18 16:30:51,379 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=80, Invalid=226, Unknown=0, NotChecked=0, Total=306 [2021-12-18 16:30:51,380 INFO L933 BasicCegarLoop]: 1917 mSDtfsCounter, 4444 mSDsluCounter, 3125 mSDsCounter, 0 mSdLazyCounter, 5862 mSolverCounterSat, 3281 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 25.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4444 SdHoareTripleChecker+Valid, 5042 SdHoareTripleChecker+Invalid, 9150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3281 IncrementalHoareTripleChecker+Valid, 5862 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 27.4s IncrementalHoareTripleChecker+Time [2021-12-18 16:30:51,380 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4444 Valid, 5042 Invalid, 9150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3281 Valid, 5862 Invalid, 7 Unknown, 0 Unchecked, 27.4s Time] [2021-12-18 16:30:51,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15963 states. [2021-12-18 16:30:52,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15963 to 13685. [2021-12-18 16:30:52,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13685 states, 9518 states have (on average 1.2417524690060937) internal successors, (11819), 9910 states have internal predecessors, (11819), 3179 states have call successors, (3179), 825 states have call predecessors, (3179), 979 states have return successors, (4233), 3113 states have call predecessors, (4233), 3175 states have call successors, (4233) [2021-12-18 16:30:52,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13685 states to 13685 states and 19231 transitions. [2021-12-18 16:30:52,430 INFO L78 Accepts]: Start accepts. Automaton has 13685 states and 19231 transitions. Word has length 233 [2021-12-18 16:30:52,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 16:30:52,431 INFO L470 AbstractCegarLoop]: Abstraction has 13685 states and 19231 transitions. [2021-12-18 16:30:52,431 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 13.375) internal successors, (107), 4 states have internal predecessors, (107), 3 states have call successors, (33), 6 states have call predecessors, (33), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2021-12-18 16:30:52,431 INFO L276 IsEmpty]: Start isEmpty. Operand 13685 states and 19231 transitions. [2021-12-18 16:30:52,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2021-12-18 16:30:52,456 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 16:30:52,457 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 7, 7, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 16:30:52,457 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2021-12-18 16:30:52,457 INFO L402 AbstractCegarLoop]: === Iteration 32 === 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 31 more)] === [2021-12-18 16:30:52,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 16:30:52,458 INFO L85 PathProgramCache]: Analyzing trace with hash 1895830170, now seen corresponding path program 1 times [2021-12-18 16:30:52,458 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 16:30:52,458 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [218259177] [2021-12-18 16:30:52,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 16:30:52,458 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 16:30:52,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:30:52,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 16:30:52,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:30:52,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-18 16:30:52,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:30:52,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-12-18 16:30:52,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:30:52,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-18 16:30:52,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:30:52,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-18 16:30:52,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:30:52,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-18 16:30:52,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:30:52,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-12-18 16:30:52,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:30:52,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:30:52,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:30:52,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-12-18 16:30:52,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:30:52,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-18 16:30:52,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:30:52,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-18 16:30:52,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:30:52,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-12-18 16:30:52,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:30:52,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:30:52,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:30:52,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:30:52,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:30:52,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 16:30:52,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:30:52,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-12-18 16:30:52,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:30:52,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-18 16:30:52,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:30:52,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:30:52,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:30:52,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:30:52,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:30:52,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 16:30:52,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:30:52,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-12-18 16:30:52,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:30:52,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-12-18 16:30:52,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:30:52,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:30:52,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:30:52,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:30:52,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:30:52,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 16:30:52,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:30:52,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2021-12-18 16:30:52,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:30:52,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2021-12-18 16:30:52,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:30:52,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:30:52,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:30:53,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-12-18 16:30:53,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:30:53,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:30:53,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:30:53,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:30:53,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:30:53,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:30:53,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:30:53,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 16:30:53,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:30:53,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-18 16:30:53,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:30:53,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:30:53,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:30:53,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-18 16:30:53,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:30:53,089 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 276 trivial. 0 not checked. [2021-12-18 16:30:53,090 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 16:30:53,090 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [218259177] [2021-12-18 16:30:53,090 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [218259177] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 16:30:53,090 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 16:30:53,090 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-18 16:30:53,090 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1811460546] [2021-12-18 16:30:53,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 16:30:53,091 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-18 16:30:53,091 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 16:30:53,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-18 16:30:53,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-18 16:30:53,092 INFO L87 Difference]: Start difference. First operand 13685 states and 19231 transitions. Second operand has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 4 states have internal predecessors, (96), 2 states have call successors, (33), 6 states have call predecessors, (33), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2021-12-18 16:30:58,051 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:31:03,648 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:31:07,804 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:31:10,384 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:31:27,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 16:31:27,119 INFO L93 Difference]: Finished difference Result 16882 states and 24031 transitions. [2021-12-18 16:31:27,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-12-18 16:31:27,120 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 4 states have internal predecessors, (96), 2 states have call successors, (33), 6 states have call predecessors, (33), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) Word has length 222 [2021-12-18 16:31:27,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 16:31:27,167 INFO L225 Difference]: With dead ends: 16882 [2021-12-18 16:31:27,167 INFO L226 Difference]: Without dead ends: 16880 [2021-12-18 16:31:27,175 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=139, Invalid=323, Unknown=0, NotChecked=0, Total=462 [2021-12-18 16:31:27,176 INFO L933 BasicCegarLoop]: 3348 mSDtfsCounter, 7642 mSDsluCounter, 5480 mSDsCounter, 0 mSdLazyCounter, 11562 mSolverCounterSat, 5532 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 30.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7768 SdHoareTripleChecker+Valid, 8828 SdHoareTripleChecker+Invalid, 17097 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 5532 IncrementalHoareTripleChecker+Valid, 11562 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 32.6s IncrementalHoareTripleChecker+Time [2021-12-18 16:31:27,176 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7768 Valid, 8828 Invalid, 17097 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [5532 Valid, 11562 Invalid, 3 Unknown, 0 Unchecked, 32.6s Time] [2021-12-18 16:31:27,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16880 states. [2021-12-18 16:31:28,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16880 to 15453. [2021-12-18 16:31:28,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15453 states, 10854 states have (on average 1.248111295374977) internal successors, (13547), 11256 states have internal predecessors, (13547), 3535 states have call successors, (3535), 829 states have call predecessors, (3535), 1055 states have return successors, (4823), 3545 states have call predecessors, (4823), 3531 states have call successors, (4823) [2021-12-18 16:31:28,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15453 states to 15453 states and 21905 transitions. [2021-12-18 16:31:28,473 INFO L78 Accepts]: Start accepts. Automaton has 15453 states and 21905 transitions. Word has length 222 [2021-12-18 16:31:28,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 16:31:28,474 INFO L470 AbstractCegarLoop]: Abstraction has 15453 states and 21905 transitions. [2021-12-18 16:31:28,474 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 4 states have internal predecessors, (96), 2 states have call successors, (33), 6 states have call predecessors, (33), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2021-12-18 16:31:28,474 INFO L276 IsEmpty]: Start isEmpty. Operand 15453 states and 21905 transitions. [2021-12-18 16:31:28,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 283 [2021-12-18 16:31:28,478 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 16:31:28,478 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 8, 8, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 16:31:28,478 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2021-12-18 16:31:28,479 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 31 more)] === [2021-12-18 16:31:28,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 16:31:28,479 INFO L85 PathProgramCache]: Analyzing trace with hash -754536956, now seen corresponding path program 1 times [2021-12-18 16:31:28,479 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 16:31:28,479 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [386583861] [2021-12-18 16:31:28,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 16:31:28,480 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 16:31:28,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:31:28,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 16:31:28,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:31:28,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-18 16:31:28,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:31:28,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-12-18 16:31:28,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:31:28,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-18 16:31:28,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:31:28,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-18 16:31:28,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:31:28,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-18 16:31:28,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:31:28,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-12-18 16:31:28,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:31:28,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:31:28,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:31:28,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-12-18 16:31:28,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:31:28,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-18 16:31:28,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:31:28,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-18 16:31:28,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:31:28,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-12-18 16:31:28,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:31:28,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:31:28,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:31:28,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:31:28,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:31:28,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 16:31:28,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:31:28,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-12-18 16:31:28,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:31:28,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-18 16:31:28,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:31:28,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:31:28,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:31:28,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:31:28,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:31:28,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 16:31:28,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:31:28,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-12-18 16:31:28,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:31:28,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-12-18 16:31:28,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:31:28,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:31:28,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:31:28,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:31:28,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:31:28,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 16:31:28,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:31:28,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2021-12-18 16:31:28,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:31:28,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2021-12-18 16:31:28,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:31:28,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:31:28,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:31:28,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:31:28,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:31:28,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:31:28,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:31:28,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 16:31:28,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:31:28,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-18 16:31:28,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:31:28,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:31:28,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:31:28,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-18 16:31:28,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:31:28,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2021-12-18 16:31:28,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:31:28,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2021-12-18 16:31:28,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:31:28,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2021-12-18 16:31:28,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:31:29,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:31:29,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:31:29,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:31:29,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:31:29,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:31:29,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:31:29,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 16:31:29,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:31:29,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-18 16:31:29,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:31:29,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:31:29,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:31:29,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-18 16:31:29,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:31:29,034 INFO L134 CoverageAnalysis]: Checked inductivity of 335 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 328 trivial. 0 not checked. [2021-12-18 16:31:29,034 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 16:31:29,034 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [386583861] [2021-12-18 16:31:29,034 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [386583861] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-18 16:31:29,034 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1597274409] [2021-12-18 16:31:29,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 16:31:29,035 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-18 16:31:29,035 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-18 16:31:29,040 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 16:31:29,041 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 16:31:29,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:31:29,963 INFO L263 TraceCheckSpWp]: Trace formula consists of 2488 conjuncts, 6 conjunts are in the unsatisfiable core [2021-12-18 16:31:29,971 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-18 16:31:30,414 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2021-12-18 16:31:30,494 INFO L134 CoverageAnalysis]: Checked inductivity of 335 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 335 trivial. 0 not checked. [2021-12-18 16:31:30,495 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-18 16:31:30,495 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1597274409] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 16:31:30,495 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-18 16:31:30,495 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 15 [2021-12-18 16:31:30,495 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [691049426] [2021-12-18 16:31:30,495 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 16:31:30,496 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-18 16:31:30,496 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 16:31:30,496 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-18 16:31:30,496 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=183, Unknown=0, NotChecked=0, Total=210 [2021-12-18 16:31:30,497 INFO L87 Difference]: Start difference. First operand 15453 states and 21905 transitions. Second operand has 5 states, 5 states have (on average 22.8) internal successors, (114), 5 states have internal predecessors, (114), 2 states have call successors, (34), 2 states have call predecessors, (34), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2021-12-18 16:31:34,096 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.59s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:31:36,125 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:31:38,219 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:31:42,641 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:31:44,680 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:31:46,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 16:31:46,938 INFO L93 Difference]: Finished difference Result 30906 states and 44985 transitions. [2021-12-18 16:31:46,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-18 16:31:46,939 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.8) internal successors, (114), 5 states have internal predecessors, (114), 2 states have call successors, (34), 2 states have call predecessors, (34), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 282 [2021-12-18 16:31:46,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 16:31:46,980 INFO L225 Difference]: With dead ends: 30906 [2021-12-18 16:31:46,980 INFO L226 Difference]: Without dead ends: 15857 [2021-12-18 16:31:47,107 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 379 GetRequests, 365 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=31, Invalid=209, Unknown=0, NotChecked=0, Total=240 [2021-12-18 16:31:47,108 INFO L933 BasicCegarLoop]: 2208 mSDtfsCounter, 33 mSDsluCounter, 6214 mSDsCounter, 0 mSdLazyCounter, 433 mSolverCounterSat, 2 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 8422 SdHoareTripleChecker+Invalid, 439 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 433 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.3s IncrementalHoareTripleChecker+Time [2021-12-18 16:31:47,108 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [38 Valid, 8422 Invalid, 439 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 433 Invalid, 4 Unknown, 0 Unchecked, 15.3s Time] [2021-12-18 16:31:47,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15857 states. [2021-12-18 16:31:48,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15857 to 15477. [2021-12-18 16:31:48,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15477 states, 10878 states have (on average 1.2475638904210333) internal successors, (13571), 11280 states have internal predecessors, (13571), 3535 states have call successors, (3535), 829 states have call predecessors, (3535), 1055 states have return successors, (4823), 3545 states have call predecessors, (4823), 3531 states have call successors, (4823) [2021-12-18 16:31:48,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15477 states to 15477 states and 21929 transitions. [2021-12-18 16:31:48,110 INFO L78 Accepts]: Start accepts. Automaton has 15477 states and 21929 transitions. Word has length 282 [2021-12-18 16:31:48,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 16:31:48,110 INFO L470 AbstractCegarLoop]: Abstraction has 15477 states and 21929 transitions. [2021-12-18 16:31:48,110 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.8) internal successors, (114), 5 states have internal predecessors, (114), 2 states have call successors, (34), 2 states have call predecessors, (34), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2021-12-18 16:31:48,111 INFO L276 IsEmpty]: Start isEmpty. Operand 15477 states and 21929 transitions. [2021-12-18 16:31:48,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 284 [2021-12-18 16:31:48,115 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 16:31:48,115 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 8, 8, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 16:31:48,145 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 16:31:48,343 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,SelfDestructingSolverStorable32 [2021-12-18 16:31:48,343 INFO L402 AbstractCegarLoop]: === Iteration 34 === 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 31 more)] === [2021-12-18 16:31:48,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 16:31:48,344 INFO L85 PathProgramCache]: Analyzing trace with hash -1841366335, now seen corresponding path program 1 times [2021-12-18 16:31:48,344 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 16:31:48,344 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [849994932] [2021-12-18 16:31:48,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 16:31:48,344 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 16:31:48,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:31:48,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 16:31:48,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:31:48,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-18 16:31:48,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:31:48,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-12-18 16:31:48,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:31:48,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-18 16:31:48,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:31:48,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-18 16:31:48,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:31:48,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-18 16:31:48,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:31:48,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-12-18 16:31:48,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:31:48,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:31:48,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:31:48,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-12-18 16:31:48,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:31:48,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-18 16:31:48,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:31:48,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-18 16:31:48,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:31:48,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-12-18 16:31:48,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:31:48,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:31:48,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:31:48,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:31:48,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:31:48,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 16:31:48,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:31:48,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-12-18 16:31:48,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:31:48,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-18 16:31:48,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:31:48,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:31:48,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:31:48,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:31:48,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:31:48,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 16:31:48,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:31:48,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-12-18 16:31:48,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:31:48,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-12-18 16:31:48,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:31:48,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:31:48,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:31:48,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:31:48,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:31:48,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 16:31:48,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:31:48,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2021-12-18 16:31:48,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:31:48,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2021-12-18 16:31:48,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:31:48,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:31:48,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:31:48,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:31:48,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:31:48,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:31:48,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:31:48,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 16:31:48,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:31:48,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-18 16:31:48,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:31:48,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:31:48,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:31:48,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-18 16:31:48,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:31:48,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2021-12-18 16:31:48,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:31:48,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2021-12-18 16:31:48,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:31:48,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2021-12-18 16:31:48,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:31:48,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:31:48,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:31:48,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:31:48,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:31:48,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:31:48,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:31:48,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 16:31:48,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:31:48,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-18 16:31:48,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:31:48,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:31:48,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:31:48,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-18 16:31:48,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:31:48,913 INFO L134 CoverageAnalysis]: Checked inductivity of 335 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 328 trivial. 0 not checked. [2021-12-18 16:31:48,913 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 16:31:48,914 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [849994932] [2021-12-18 16:31:48,914 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [849994932] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-18 16:31:48,914 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1128602955] [2021-12-18 16:31:48,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 16:31:48,914 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-18 16:31:48,914 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-18 16:31:48,915 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 16:31:48,917 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 16:31:49,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:31:49,854 INFO L263 TraceCheckSpWp]: Trace formula consists of 2490 conjuncts, 6 conjunts are in the unsatisfiable core [2021-12-18 16:31:49,859 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-18 16:31:50,244 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2021-12-18 16:31:50,309 INFO L134 CoverageAnalysis]: Checked inductivity of 335 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 335 trivial. 0 not checked. [2021-12-18 16:31:50,309 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-18 16:31:50,310 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1128602955] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 16:31:50,310 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-18 16:31:50,310 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 15 [2021-12-18 16:31:50,310 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [248558014] [2021-12-18 16:31:50,310 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 16:31:50,311 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-18 16:31:50,311 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 16:31:50,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-18 16:31:50,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=183, Unknown=0, NotChecked=0, Total=210 [2021-12-18 16:31:50,311 INFO L87 Difference]: Start difference. First operand 15477 states and 21929 transitions. Second operand has 5 states, 5 states have (on average 23.0) internal successors, (115), 5 states have internal predecessors, (115), 2 states have call successors, (34), 2 states have call predecessors, (34), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2021-12-18 16:31:56,166 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:31:58,323 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:32:00,358 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:32:02,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 16:32:02,794 INFO L93 Difference]: Finished difference Result 30978 states and 45057 transitions. [2021-12-18 16:32:02,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-18 16:32:02,795 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.0) internal successors, (115), 5 states have internal predecessors, (115), 2 states have call successors, (34), 2 states have call predecessors, (34), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 283 [2021-12-18 16:32:02,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 16:32:02,853 INFO L225 Difference]: With dead ends: 30978 [2021-12-18 16:32:02,853 INFO L226 Difference]: Without dead ends: 15905 [2021-12-18 16:32:02,900 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 380 GetRequests, 366 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=31, Invalid=209, Unknown=0, NotChecked=0, Total=240 [2021-12-18 16:32:02,901 INFO L933 BasicCegarLoop]: 2213 mSDtfsCounter, 35 mSDsluCounter, 6224 mSDsCounter, 0 mSdLazyCounter, 439 mSolverCounterSat, 2 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 8437 SdHoareTripleChecker+Invalid, 443 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 439 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.4s IncrementalHoareTripleChecker+Time [2021-12-18 16:32:02,901 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [40 Valid, 8437 Invalid, 443 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 439 Invalid, 2 Unknown, 0 Unchecked, 11.4s Time] [2021-12-18 16:32:02,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15905 states. [2021-12-18 16:32:03,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15905 to 15501. [2021-12-18 16:32:03,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15501 states, 10902 states have (on average 1.2470188956154833) internal successors, (13595), 11304 states have internal predecessors, (13595), 3535 states have call successors, (3535), 829 states have call predecessors, (3535), 1055 states have return successors, (4823), 3545 states have call predecessors, (4823), 3531 states have call successors, (4823) [2021-12-18 16:32:03,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15501 states to 15501 states and 21953 transitions. [2021-12-18 16:32:03,810 INFO L78 Accepts]: Start accepts. Automaton has 15501 states and 21953 transitions. Word has length 283 [2021-12-18 16:32:03,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 16:32:03,811 INFO L470 AbstractCegarLoop]: Abstraction has 15501 states and 21953 transitions. [2021-12-18 16:32:03,811 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.0) internal successors, (115), 5 states have internal predecessors, (115), 2 states have call successors, (34), 2 states have call predecessors, (34), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2021-12-18 16:32:03,811 INFO L276 IsEmpty]: Start isEmpty. Operand 15501 states and 21953 transitions. [2021-12-18 16:32:03,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 285 [2021-12-18 16:32:03,815 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 16:32:03,816 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 8, 8, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 16:32:03,847 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-12-18 16:32:04,043 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-18 16:32:04,043 INFO L402 AbstractCegarLoop]: === Iteration 35 === 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 31 more)] === [2021-12-18 16:32:04,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 16:32:04,044 INFO L85 PathProgramCache]: Analyzing trace with hash -538514795, now seen corresponding path program 1 times [2021-12-18 16:32:04,044 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 16:32:04,044 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1038267794] [2021-12-18 16:32:04,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 16:32:04,044 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 16:32:04,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:04,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 16:32:04,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:04,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-18 16:32:04,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:04,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-12-18 16:32:04,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:04,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-18 16:32:04,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:04,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-18 16:32:04,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:04,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-18 16:32:04,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:04,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-12-18 16:32:04,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:04,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:32:04,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:04,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-12-18 16:32:04,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:04,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-18 16:32:04,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:04,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-18 16:32:04,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:04,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-12-18 16:32:04,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:04,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:32:04,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:04,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:32:04,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:04,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 16:32:04,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:04,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-12-18 16:32:04,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:04,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-18 16:32:04,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:04,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:32:04,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:04,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:32:04,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:04,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 16:32:04,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:04,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-12-18 16:32:04,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:04,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-12-18 16:32:04,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:04,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:32:04,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:04,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:32:04,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:04,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 16:32:04,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:04,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2021-12-18 16:32:04,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:04,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2021-12-18 16:32:04,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:04,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:32:04,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:04,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:32:04,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:04,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:32:04,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:04,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 16:32:04,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:04,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-18 16:32:04,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:04,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:32:04,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:04,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-18 16:32:04,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:04,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2021-12-18 16:32:04,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:04,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2021-12-18 16:32:04,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:04,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2021-12-18 16:32:04,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:04,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:32:04,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:04,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:32:04,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:04,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:32:04,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:04,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 16:32:04,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:04,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-18 16:32:04,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:04,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:32:04,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:04,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-18 16:32:04,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:04,607 INFO L134 CoverageAnalysis]: Checked inductivity of 335 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 328 trivial. 0 not checked. [2021-12-18 16:32:04,607 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 16:32:04,607 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1038267794] [2021-12-18 16:32:04,607 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1038267794] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-18 16:32:04,608 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [803070706] [2021-12-18 16:32:04,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 16:32:04,608 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-18 16:32:04,608 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-18 16:32:04,612 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 16:32:04,612 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 16:32:05,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:05,447 INFO L263 TraceCheckSpWp]: Trace formula consists of 2497 conjuncts, 10 conjunts are in the unsatisfiable core [2021-12-18 16:32:05,451 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-18 16:32:05,927 INFO L134 CoverageAnalysis]: Checked inductivity of 335 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 335 trivial. 0 not checked. [2021-12-18 16:32:05,927 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-18 16:32:05,927 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [803070706] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 16:32:05,927 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-18 16:32:05,927 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 15 [2021-12-18 16:32:05,927 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1537207804] [2021-12-18 16:32:05,927 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 16:32:05,928 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-18 16:32:05,928 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 16:32:05,928 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-18 16:32:05,928 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=183, Unknown=0, NotChecked=0, Total=210 [2021-12-18 16:32:05,928 INFO L87 Difference]: Start difference. First operand 15501 states and 21953 transitions. Second operand has 5 states, 4 states have (on average 29.0) internal successors, (116), 4 states have internal predecessors, (116), 4 states have call successors, (34), 3 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 16:32:06,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 16:32:06,957 INFO L93 Difference]: Finished difference Result 25329 states and 35345 transitions. [2021-12-18 16:32:06,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-18 16:32:06,959 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 29.0) internal successors, (116), 4 states have internal predecessors, (116), 4 states have call successors, (34), 3 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 284 [2021-12-18 16:32:06,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 16:32:07,002 INFO L225 Difference]: With dead ends: 25329 [2021-12-18 16:32:07,002 INFO L226 Difference]: Without dead ends: 17817 [2021-12-18 16:32:07,023 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 381 GetRequests, 367 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=31, Invalid=209, Unknown=0, NotChecked=0, Total=240 [2021-12-18 16:32:07,024 INFO L933 BasicCegarLoop]: 2235 mSDtfsCounter, 288 mSDsluCounter, 6679 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 309 SdHoareTripleChecker+Valid, 8914 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-18 16:32:07,024 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [309 Valid, 8914 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-18 16:32:07,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17817 states. [2021-12-18 16:32:08,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17817 to 16977. [2021-12-18 16:32:08,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16977 states, 12018 states have (on average 1.2540356132467965) internal successors, (15071), 12456 states have internal predecessors, (15071), 3879 states have call successors, (3879), 837 states have call predecessors, (3879), 1071 states have return successors, (5176), 3885 states have call predecessors, (5176), 3875 states have call successors, (5176) [2021-12-18 16:32:08,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16977 states to 16977 states and 24126 transitions. [2021-12-18 16:32:08,171 INFO L78 Accepts]: Start accepts. Automaton has 16977 states and 24126 transitions. Word has length 284 [2021-12-18 16:32:08,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 16:32:08,172 INFO L470 AbstractCegarLoop]: Abstraction has 16977 states and 24126 transitions. [2021-12-18 16:32:08,172 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 29.0) internal successors, (116), 4 states have internal predecessors, (116), 4 states have call successors, (34), 3 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 16:32:08,172 INFO L276 IsEmpty]: Start isEmpty. Operand 16977 states and 24126 transitions. [2021-12-18 16:32:08,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 258 [2021-12-18 16:32:08,176 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 16:32:08,177 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 13, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 16:32:08,199 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2021-12-18 16:32:08,379 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-18 16:32:08,379 INFO L402 AbstractCegarLoop]: === Iteration 36 === 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 31 more)] === [2021-12-18 16:32:08,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 16:32:08,380 INFO L85 PathProgramCache]: Analyzing trace with hash 1716628245, now seen corresponding path program 1 times [2021-12-18 16:32:08,380 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 16:32:08,380 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1330074134] [2021-12-18 16:32:08,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 16:32:08,380 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 16:32:08,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:08,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 16:32:08,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:08,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-18 16:32:08,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:08,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-12-18 16:32:08,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:08,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-18 16:32:08,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:08,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-12-18 16:32:08,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:08,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:32:08,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:08,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:32:08,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:08,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 16:32:08,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:08,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-18 16:32:08,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:08,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:32:08,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:08,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:32:08,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:08,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 16:32:08,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:08,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-12-18 16:32:08,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:08,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:32:08,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:08,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:32:08,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:08,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 16:32:08,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:08,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-12-18 16:32:08,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:08,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:32:08,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:08,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:32:08,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:08,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 16:32:08,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:08,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-12-18 16:32:08,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:08,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:32:08,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:08,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:32:08,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:08,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 16:32:08,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:08,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-12-18 16:32:08,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:08,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-12-18 16:32:08,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:08,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-12-18 16:32:08,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:08,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-12-18 16:32:08,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:08,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:32:08,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:08,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:32:08,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:08,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:32:08,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:08,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 16:32:08,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:08,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-18 16:32:08,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:08,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:32:08,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:08,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-12-18 16:32:08,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:08,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2021-12-18 16:32:08,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:08,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2021-12-18 16:32:08,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:08,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2021-12-18 16:32:08,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:08,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-12-18 16:32:08,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:08,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-18 16:32:08,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:08,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2021-12-18 16:32:08,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:08,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2021-12-18 16:32:08,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:08,746 INFO L134 CoverageAnalysis]: Checked inductivity of 434 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 434 trivial. 0 not checked. [2021-12-18 16:32:08,747 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 16:32:08,747 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1330074134] [2021-12-18 16:32:08,747 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1330074134] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 16:32:08,747 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 16:32:08,747 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-18 16:32:08,748 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1963580085] [2021-12-18 16:32:08,748 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 16:32:08,749 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-18 16:32:08,749 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 16:32:08,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-18 16:32:08,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-12-18 16:32:08,749 INFO L87 Difference]: Start difference. First operand 16977 states and 24126 transitions. Second operand has 8 states, 7 states have (on average 14.428571428571429) internal successors, (101), 3 states have internal predecessors, (101), 3 states have call successors, (36), 7 states have call predecessors, (36), 1 states have return successors, (30), 2 states have call predecessors, (30), 3 states have call successors, (30) [2021-12-18 16:32:12,864 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:32:15,849 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.49s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:32:16,964 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:32:18,988 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:32:21,690 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:32:24,338 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:32:26,390 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:32:36,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 16:32:36,647 INFO L93 Difference]: Finished difference Result 41857 states and 61948 transitions. [2021-12-18 16:32:36,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-18 16:32:36,648 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 14.428571428571429) internal successors, (101), 3 states have internal predecessors, (101), 3 states have call successors, (36), 7 states have call predecessors, (36), 1 states have return successors, (30), 2 states have call predecessors, (30), 3 states have call successors, (30) Word has length 257 [2021-12-18 16:32:36,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 16:32:36,717 INFO L225 Difference]: With dead ends: 41857 [2021-12-18 16:32:36,717 INFO L226 Difference]: Without dead ends: 25283 [2021-12-18 16:32:36,749 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=73, Invalid=167, Unknown=0, NotChecked=0, Total=240 [2021-12-18 16:32:36,750 INFO L933 BasicCegarLoop]: 2262 mSDtfsCounter, 5275 mSDsluCounter, 3316 mSDsCounter, 0 mSdLazyCounter, 5891 mSolverCounterSat, 3990 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 24.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5422 SdHoareTripleChecker+Valid, 5578 SdHoareTripleChecker+Invalid, 9886 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3990 IncrementalHoareTripleChecker+Valid, 5891 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 25.9s IncrementalHoareTripleChecker+Time [2021-12-18 16:32:36,750 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5422 Valid, 5578 Invalid, 9886 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3990 Valid, 5891 Invalid, 5 Unknown, 0 Unchecked, 25.9s Time] [2021-12-18 16:32:36,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25283 states. [2021-12-18 16:32:37,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25283 to 19972. [2021-12-18 16:32:37,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19972 states, 14245 states have (on average 1.2534924534924534) internal successors, (17856), 14731 states have internal predecessors, (17856), 4431 states have call successors, (4431), 837 states have call predecessors, (4431), 1287 states have return successors, (6818), 4623 states have call predecessors, (6818), 4427 states have call successors, (6818) [2021-12-18 16:32:38,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19972 states to 19972 states and 29105 transitions. [2021-12-18 16:32:38,067 INFO L78 Accepts]: Start accepts. Automaton has 19972 states and 29105 transitions. Word has length 257 [2021-12-18 16:32:38,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 16:32:38,067 INFO L470 AbstractCegarLoop]: Abstraction has 19972 states and 29105 transitions. [2021-12-18 16:32:38,067 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 14.428571428571429) internal successors, (101), 3 states have internal predecessors, (101), 3 states have call successors, (36), 7 states have call predecessors, (36), 1 states have return successors, (30), 2 states have call predecessors, (30), 3 states have call successors, (30) [2021-12-18 16:32:38,067 INFO L276 IsEmpty]: Start isEmpty. Operand 19972 states and 29105 transitions. [2021-12-18 16:32:38,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 291 [2021-12-18 16:32:38,071 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 16:32:38,071 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 8, 8, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 16:32:38,071 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2021-12-18 16:32:38,071 INFO L402 AbstractCegarLoop]: === Iteration 37 === 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 31 more)] === [2021-12-18 16:32:38,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 16:32:38,072 INFO L85 PathProgramCache]: Analyzing trace with hash -1708661830, now seen corresponding path program 1 times [2021-12-18 16:32:38,072 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 16:32:38,072 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1464169796] [2021-12-18 16:32:38,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 16:32:38,072 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 16:32:38,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:38,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 16:32:38,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:38,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-18 16:32:38,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:38,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-12-18 16:32:38,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:38,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-18 16:32:38,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:38,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-18 16:32:38,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:38,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-18 16:32:38,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:38,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-12-18 16:32:38,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:38,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:32:38,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:38,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-12-18 16:32:38,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:38,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-18 16:32:38,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:38,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-18 16:32:38,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:38,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-12-18 16:32:38,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:38,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:32:38,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:38,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:32:38,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:38,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 16:32:38,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:38,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-12-18 16:32:38,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:38,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-18 16:32:38,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:38,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:32:38,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:38,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:32:38,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:38,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 16:32:38,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:38,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-12-18 16:32:38,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:38,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-12-18 16:32:38,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:38,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:32:38,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:38,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:32:38,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:38,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 16:32:38,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:38,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2021-12-18 16:32:38,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:38,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2021-12-18 16:32:38,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:38,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:32:38,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:38,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:32:38,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:38,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:32:38,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:38,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 16:32:38,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:38,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-18 16:32:38,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:38,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:32:38,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:38,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-18 16:32:38,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:38,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2021-12-18 16:32:38,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:38,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2021-12-18 16:32:38,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:38,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2021-12-18 16:32:38,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:38,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:32:38,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:38,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:32:38,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:38,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:32:38,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:38,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 16:32:38,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:38,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-18 16:32:38,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:38,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:32:38,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:38,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-18 16:32:38,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:38,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 269 [2021-12-18 16:32:38,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:38,723 INFO L134 CoverageAnalysis]: Checked inductivity of 335 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 328 trivial. 0 not checked. [2021-12-18 16:32:38,723 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 16:32:38,724 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1464169796] [2021-12-18 16:32:38,724 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1464169796] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-18 16:32:38,724 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1164697492] [2021-12-18 16:32:38,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 16:32:38,724 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-18 16:32:38,725 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-18 16:32:38,725 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 16:32:38,730 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 16:32:39,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:39,644 INFO L263 TraceCheckSpWp]: Trace formula consists of 2521 conjuncts, 29 conjunts are in the unsatisfiable core [2021-12-18 16:32:39,653 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-18 16:32:40,445 INFO L134 CoverageAnalysis]: Checked inductivity of 335 backedges. 150 proven. 0 refuted. 0 times theorem prover too weak. 185 trivial. 0 not checked. [2021-12-18 16:32:40,445 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-18 16:32:40,445 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1164697492] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 16:32:40,445 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-18 16:32:40,446 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [12] total 28 [2021-12-18 16:32:40,446 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1914734525] [2021-12-18 16:32:40,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 16:32:40,446 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-12-18 16:32:40,446 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 16:32:40,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-12-18 16:32:40,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=703, Unknown=0, NotChecked=0, Total=756 [2021-12-18 16:32:40,447 INFO L87 Difference]: Start difference. First operand 19972 states and 29105 transitions. Second operand has 18 states, 17 states have (on average 7.529411764705882) internal successors, (128), 17 states have internal predecessors, (128), 7 states have call successors, (35), 2 states have call predecessors, (35), 4 states have return successors, (32), 7 states have call predecessors, (32), 7 states have call successors, (32) [2021-12-18 16:32:42,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 16:32:42,652 INFO L93 Difference]: Finished difference Result 39877 states and 58116 transitions. [2021-12-18 16:32:42,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-12-18 16:32:42,654 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 7.529411764705882) internal successors, (128), 17 states have internal predecessors, (128), 7 states have call successors, (35), 2 states have call predecessors, (35), 4 states have return successors, (32), 7 states have call predecessors, (32), 7 states have call successors, (32) Word has length 290 [2021-12-18 16:32:42,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 16:32:42,719 INFO L225 Difference]: With dead ends: 39877 [2021-12-18 16:32:42,720 INFO L226 Difference]: Without dead ends: 19919 [2021-12-18 16:32:42,775 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 400 GetRequests, 362 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=192, Invalid=1368, Unknown=0, NotChecked=0, Total=1560 [2021-12-18 16:32:42,776 INFO L933 BasicCegarLoop]: 2158 mSDtfsCounter, 68 mSDsluCounter, 34485 mSDsCounter, 0 mSdLazyCounter, 632 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 36643 SdHoareTripleChecker+Invalid, 689 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 632 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-12-18 16:32:42,776 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [68 Valid, 36643 Invalid, 689 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 632 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-12-18 16:32:42,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19919 states. [2021-12-18 16:32:44,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19919 to 19919. [2021-12-18 16:32:44,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19919 states, 14213 states have (on average 1.253781749102934) internal successors, (17820), 14695 states have internal predecessors, (17820), 4416 states have call successors, (4416), 831 states have call predecessors, (4416), 1281 states have return successors, (6803), 4610 states have call predecessors, (6803), 4412 states have call successors, (6803) [2021-12-18 16:32:44,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19919 states to 19919 states and 29039 transitions. [2021-12-18 16:32:44,282 INFO L78 Accepts]: Start accepts. Automaton has 19919 states and 29039 transitions. Word has length 290 [2021-12-18 16:32:44,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 16:32:44,283 INFO L470 AbstractCegarLoop]: Abstraction has 19919 states and 29039 transitions. [2021-12-18 16:32:44,283 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 7.529411764705882) internal successors, (128), 17 states have internal predecessors, (128), 7 states have call successors, (35), 2 states have call predecessors, (35), 4 states have return successors, (32), 7 states have call predecessors, (32), 7 states have call successors, (32) [2021-12-18 16:32:44,283 INFO L276 IsEmpty]: Start isEmpty. Operand 19919 states and 29039 transitions. [2021-12-18 16:32:44,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 291 [2021-12-18 16:32:44,287 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 16:32:44,287 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 8, 8, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 16:32:44,313 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2021-12-18 16:32:44,499 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2021-12-18 16:32:44,500 INFO L402 AbstractCegarLoop]: === Iteration 38 === 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 31 more)] === [2021-12-18 16:32:44,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 16:32:44,500 INFO L85 PathProgramCache]: Analyzing trace with hash -1492621508, now seen corresponding path program 1 times [2021-12-18 16:32:44,500 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 16:32:44,500 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [676200939] [2021-12-18 16:32:44,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 16:32:44,500 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 16:32:44,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:44,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 16:32:44,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:44,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-18 16:32:44,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:44,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-12-18 16:32:44,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:44,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-18 16:32:44,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:44,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-18 16:32:44,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:44,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-18 16:32:44,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:44,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-12-18 16:32:44,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:44,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:32:44,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:44,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-12-18 16:32:44,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:44,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-18 16:32:44,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:44,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-18 16:32:44,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:44,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-12-18 16:32:44,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:44,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:32:44,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:44,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:32:44,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:44,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 16:32:44,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:44,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-12-18 16:32:44,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:44,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-18 16:32:44,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:44,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:32:44,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:44,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:32:44,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:44,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 16:32:44,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:44,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-12-18 16:32:44,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:44,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-12-18 16:32:44,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:44,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:32:44,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:44,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:32:44,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:44,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 16:32:44,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:44,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2021-12-18 16:32:44,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:44,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2021-12-18 16:32:44,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:44,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:32:44,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:44,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:32:44,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:44,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:32:44,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:44,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 16:32:44,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:44,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-18 16:32:44,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:44,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:32:44,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:44,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-18 16:32:44,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:44,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2021-12-18 16:32:44,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:44,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2021-12-18 16:32:44,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:44,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2021-12-18 16:32:44,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:44,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:32:44,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:44,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:32:44,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:44,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:32:44,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:44,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 16:32:44,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:44,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-18 16:32:44,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:44,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:32:44,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:44,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-18 16:32:44,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:44,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 269 [2021-12-18 16:32:44,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:44,976 INFO L134 CoverageAnalysis]: Checked inductivity of 335 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 328 trivial. 0 not checked. [2021-12-18 16:32:44,977 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 16:32:44,977 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [676200939] [2021-12-18 16:32:44,977 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [676200939] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-18 16:32:44,977 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2044129309] [2021-12-18 16:32:44,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 16:32:44,977 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-18 16:32:44,978 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-18 16:32:44,980 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-18 16:32:44,981 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-12-18 16:32:45,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:45,863 INFO L263 TraceCheckSpWp]: Trace formula consists of 2519 conjuncts, 9 conjunts are in the unsatisfiable core [2021-12-18 16:32:45,867 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-18 16:32:46,291 INFO L134 CoverageAnalysis]: Checked inductivity of 335 backedges. 103 proven. 0 refuted. 0 times theorem prover too weak. 232 trivial. 0 not checked. [2021-12-18 16:32:46,291 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-18 16:32:46,292 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2044129309] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 16:32:46,292 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-18 16:32:46,292 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [12] total 16 [2021-12-18 16:32:46,292 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1163768073] [2021-12-18 16:32:46,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 16:32:46,292 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 16:32:46,293 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 16:32:46,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 16:32:46,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2021-12-18 16:32:46,293 INFO L87 Difference]: Start difference. First operand 19919 states and 29039 transitions. Second operand has 6 states, 6 states have (on average 21.333333333333332) internal successors, (128), 6 states have internal predecessors, (128), 3 states have call successors, (35), 2 states have call predecessors, (35), 3 states have return successors, (32), 3 states have call predecessors, (32), 3 states have call successors, (32) [2021-12-18 16:32:48,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 16:32:48,070 INFO L93 Difference]: Finished difference Result 21700 states and 31382 transitions. [2021-12-18 16:32:48,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-18 16:32:48,071 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 21.333333333333332) internal successors, (128), 6 states have internal predecessors, (128), 3 states have call successors, (35), 2 states have call predecessors, (35), 3 states have return successors, (32), 3 states have call predecessors, (32), 3 states have call successors, (32) Word has length 290 [2021-12-18 16:32:48,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 16:32:48,121 INFO L225 Difference]: With dead ends: 21700 [2021-12-18 16:32:48,121 INFO L226 Difference]: Without dead ends: 19919 [2021-12-18 16:32:48,133 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 390 GetRequests, 374 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-12-18 16:32:48,133 INFO L933 BasicCegarLoop]: 2163 mSDtfsCounter, 612 mSDsluCounter, 7659 mSDsCounter, 0 mSdLazyCounter, 138 mSolverCounterSat, 352 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 612 SdHoareTripleChecker+Valid, 9822 SdHoareTripleChecker+Invalid, 490 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 352 IncrementalHoareTripleChecker+Valid, 138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-12-18 16:32:48,133 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [612 Valid, 9822 Invalid, 490 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [352 Valid, 138 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-12-18 16:32:48,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19919 states. [2021-12-18 16:32:49,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19919 to 19917. [2021-12-18 16:32:49,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19917 states, 14212 states have (on average 1.2537292428933295) internal successors, (17818), 14694 states have internal predecessors, (17818), 4415 states have call successors, (4415), 831 states have call predecessors, (4415), 1281 states have return successors, (6802), 4609 states have call predecessors, (6802), 4411 states have call successors, (6802) [2021-12-18 16:32:49,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19917 states to 19917 states and 29035 transitions. [2021-12-18 16:32:49,620 INFO L78 Accepts]: Start accepts. Automaton has 19917 states and 29035 transitions. Word has length 290 [2021-12-18 16:32:49,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 16:32:49,620 INFO L470 AbstractCegarLoop]: Abstraction has 19917 states and 29035 transitions. [2021-12-18 16:32:49,620 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 21.333333333333332) internal successors, (128), 6 states have internal predecessors, (128), 3 states have call successors, (35), 2 states have call predecessors, (35), 3 states have return successors, (32), 3 states have call predecessors, (32), 3 states have call successors, (32) [2021-12-18 16:32:49,621 INFO L276 IsEmpty]: Start isEmpty. Operand 19917 states and 29035 transitions. [2021-12-18 16:32:49,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 317 [2021-12-18 16:32:49,623 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 16:32:49,623 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 13, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 16:32:49,645 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2021-12-18 16:32:49,823 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2021-12-18 16:32:49,824 INFO L402 AbstractCegarLoop]: === Iteration 39 === 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 31 more)] === [2021-12-18 16:32:49,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 16:32:49,824 INFO L85 PathProgramCache]: Analyzing trace with hash 1750881302, now seen corresponding path program 1 times [2021-12-18 16:32:49,824 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 16:32:49,824 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [934498989] [2021-12-18 16:32:49,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 16:32:49,824 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 16:32:49,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:49,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 16:32:49,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:49,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-18 16:32:49,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:49,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-12-18 16:32:49,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:49,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-18 16:32:49,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:49,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-12-18 16:32:49,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:49,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:32:49,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:49,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:32:49,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:50,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 16:32:50,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:50,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-18 16:32:50,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:50,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:32:50,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:50,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:32:50,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:50,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 16:32:50,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:50,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-12-18 16:32:50,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:50,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:32:50,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:50,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:32:50,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:50,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 16:32:50,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:50,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-12-18 16:32:50,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:50,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:32:50,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:50,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:32:50,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:50,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 16:32:50,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:50,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-12-18 16:32:50,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:50,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:32:50,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:50,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:32:50,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:50,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 16:32:50,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:50,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-12-18 16:32:50,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:50,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-12-18 16:32:50,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:50,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-12-18 16:32:50,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:50,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-12-18 16:32:50,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:50,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:32:50,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:50,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:32:50,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:50,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:32:50,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:50,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 16:32:50,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:50,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-18 16:32:50,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:50,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:32:50,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:50,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-12-18 16:32:50,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:50,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2021-12-18 16:32:50,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:50,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2021-12-18 16:32:50,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:50,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2021-12-18 16:32:50,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:50,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:32:50,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:50,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:32:50,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:50,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:32:50,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:50,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 16:32:50,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:50,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-18 16:32:50,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:50,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:32:50,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:50,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-12-18 16:32:50,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:50,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2021-12-18 16:32:50,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:50,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 269 [2021-12-18 16:32:50,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:50,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 285 [2021-12-18 16:32:50,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:50,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-12-18 16:32:50,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:50,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-18 16:32:50,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:50,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 299 [2021-12-18 16:32:50,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:50,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 304 [2021-12-18 16:32:50,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:32:50,553 INFO L134 CoverageAnalysis]: Checked inductivity of 483 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 483 trivial. 0 not checked. [2021-12-18 16:32:50,567 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 16:32:50,567 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [934498989] [2021-12-18 16:32:50,568 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [934498989] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 16:32:50,568 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 16:32:50,568 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-18 16:32:50,568 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2031543549] [2021-12-18 16:32:50,568 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 16:32:50,570 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-12-18 16:32:50,570 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 16:32:50,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-12-18 16:32:50,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2021-12-18 16:32:50,571 INFO L87 Difference]: Start difference. First operand 19917 states and 29035 transitions. Second operand has 11 states, 10 states have (on average 11.2) internal successors, (112), 5 states have internal predecessors, (112), 3 states have call successors, (39), 8 states have call predecessors, (39), 1 states have return successors, (33), 2 states have call predecessors, (33), 3 states have call successors, (33) [2021-12-18 16:32:54,481 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:32:56,513 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:33:03,526 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:33:06,815 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:33:08,461 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.64s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:33:09,605 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:33:21,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 16:33:21,470 INFO L93 Difference]: Finished difference Result 45372 states and 70263 transitions. [2021-12-18 16:33:21,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-18 16:33:21,470 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 11.2) internal successors, (112), 5 states have internal predecessors, (112), 3 states have call successors, (39), 8 states have call predecessors, (39), 1 states have return successors, (33), 2 states have call predecessors, (33), 3 states have call successors, (33) Word has length 316 [2021-12-18 16:33:21,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 16:33:21,554 INFO L225 Difference]: With dead ends: 45372 [2021-12-18 16:33:21,554 INFO L226 Difference]: Without dead ends: 25805 [2021-12-18 16:33:21,618 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=143, Invalid=409, Unknown=0, NotChecked=0, Total=552 [2021-12-18 16:33:21,619 INFO L933 BasicCegarLoop]: 1935 mSDtfsCounter, 6589 mSDsluCounter, 4358 mSDsCounter, 0 mSdLazyCounter, 9267 mSolverCounterSat, 5365 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 26.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6589 SdHoareTripleChecker+Valid, 6293 SdHoareTripleChecker+Invalid, 14635 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 5365 IncrementalHoareTripleChecker+Valid, 9267 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 28.6s IncrementalHoareTripleChecker+Time [2021-12-18 16:33:21,619 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6589 Valid, 6293 Invalid, 14635 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [5365 Valid, 9267 Invalid, 3 Unknown, 0 Unchecked, 28.6s Time] [2021-12-18 16:33:21,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25805 states. [2021-12-18 16:33:23,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25805 to 19941. [2021-12-18 16:33:23,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19941 states, 14236 states have (on average 1.2533014891823546) internal successors, (17842), 14718 states have internal predecessors, (17842), 4415 states have call successors, (4415), 831 states have call predecessors, (4415), 1281 states have return successors, (6802), 4609 states have call predecessors, (6802), 4411 states have call successors, (6802) [2021-12-18 16:33:23,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19941 states to 19941 states and 29059 transitions. [2021-12-18 16:33:23,442 INFO L78 Accepts]: Start accepts. Automaton has 19941 states and 29059 transitions. Word has length 316 [2021-12-18 16:33:23,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 16:33:23,442 INFO L470 AbstractCegarLoop]: Abstraction has 19941 states and 29059 transitions. [2021-12-18 16:33:23,442 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 11.2) internal successors, (112), 5 states have internal predecessors, (112), 3 states have call successors, (39), 8 states have call predecessors, (39), 1 states have return successors, (33), 2 states have call predecessors, (33), 3 states have call successors, (33) [2021-12-18 16:33:23,443 INFO L276 IsEmpty]: Start isEmpty. Operand 19941 states and 29059 transitions. [2021-12-18 16:33:23,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 317 [2021-12-18 16:33:23,444 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 16:33:23,445 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 13, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 16:33:23,445 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2021-12-18 16:33:23,445 INFO L402 AbstractCegarLoop]: === Iteration 40 === 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 31 more)] === [2021-12-18 16:33:23,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 16:33:23,445 INFO L85 PathProgramCache]: Analyzing trace with hash 1999027796, now seen corresponding path program 1 times [2021-12-18 16:33:23,446 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 16:33:23,446 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [998801590] [2021-12-18 16:33:23,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 16:33:23,446 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 16:33:23,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:33:23,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 16:33:23,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:33:23,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-18 16:33:23,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:33:23,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-12-18 16:33:23,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:33:23,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-18 16:33:23,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:33:23,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-12-18 16:33:23,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:33:23,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:33:23,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:33:23,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:33:23,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:33:23,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 16:33:23,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:33:23,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-18 16:33:23,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:33:23,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:33:23,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:33:23,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:33:23,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:33:23,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 16:33:23,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:33:23,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-12-18 16:33:23,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:33:23,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:33:23,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:33:23,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:33:23,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:33:23,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 16:33:23,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:33:23,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-12-18 16:33:23,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:33:23,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:33:23,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:33:23,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:33:23,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:33:23,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 16:33:23,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:33:23,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-12-18 16:33:23,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:33:23,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:33:23,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:33:23,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:33:23,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:33:23,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 16:33:23,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:33:23,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-12-18 16:33:23,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:33:23,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-12-18 16:33:23,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:33:23,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-12-18 16:33:23,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:33:23,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-12-18 16:33:23,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:33:23,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:33:23,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:33:23,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:33:23,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:33:23,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:33:23,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:33:23,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 16:33:23,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:33:23,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-18 16:33:23,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:33:23,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:33:23,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:33:23,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-12-18 16:33:23,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:33:23,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2021-12-18 16:33:23,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:33:23,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2021-12-18 16:33:23,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:33:24,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2021-12-18 16:33:24,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:33:24,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:33:24,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:33:24,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:33:24,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:33:24,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:33:24,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:33:24,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 16:33:24,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:33:24,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-18 16:33:24,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:33:24,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:33:24,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:33:24,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-12-18 16:33:24,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:33:24,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2021-12-18 16:33:24,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:33:24,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 269 [2021-12-18 16:33:24,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:33:24,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 285 [2021-12-18 16:33:24,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:33:24,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-12-18 16:33:24,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:33:24,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-18 16:33:24,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:33:24,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 299 [2021-12-18 16:33:24,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:33:24,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 304 [2021-12-18 16:33:24,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:33:24,090 INFO L134 CoverageAnalysis]: Checked inductivity of 483 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 483 trivial. 0 not checked. [2021-12-18 16:33:24,090 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 16:33:24,090 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [998801590] [2021-12-18 16:33:24,090 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [998801590] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 16:33:24,090 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 16:33:24,091 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-18 16:33:24,091 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2139819445] [2021-12-18 16:33:24,091 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 16:33:24,091 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-12-18 16:33:24,092 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 16:33:24,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-12-18 16:33:24,092 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2021-12-18 16:33:24,092 INFO L87 Difference]: Start difference. First operand 19941 states and 29059 transitions. Second operand has 11 states, 10 states have (on average 11.2) internal successors, (112), 4 states have internal predecessors, (112), 3 states have call successors, (39), 9 states have call predecessors, (39), 2 states have return successors, (33), 2 states have call predecessors, (33), 3 states have call successors, (33) [2021-12-18 16:33:28,349 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:33:30,393 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:33:34,247 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:33:36,362 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:33:42,872 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:33:47,224 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:33:48,601 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:33:54,676 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-12-18 16:34:02,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 16:34:02,867 INFO L93 Difference]: Finished difference Result 25773 states and 39261 transitions. [2021-12-18 16:34:02,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-12-18 16:34:02,868 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 11.2) internal successors, (112), 4 states have internal predecessors, (112), 3 states have call successors, (39), 9 states have call predecessors, (39), 2 states have return successors, (33), 2 states have call predecessors, (33), 3 states have call successors, (33) Word has length 316 [2021-12-18 16:34:02,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 16:34:03,104 INFO L225 Difference]: With dead ends: 25773 [2021-12-18 16:34:03,104 INFO L226 Difference]: Without dead ends: 25771 [2021-12-18 16:34:03,112 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 129 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=205, Invalid=497, Unknown=0, NotChecked=0, Total=702 [2021-12-18 16:34:03,112 INFO L933 BasicCegarLoop]: 1917 mSDtfsCounter, 6869 mSDsluCounter, 3925 mSDsCounter, 0 mSdLazyCounter, 9531 mSolverCounterSat, 5473 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 34.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6869 SdHoareTripleChecker+Valid, 5842 SdHoareTripleChecker+Invalid, 15010 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 5473 IncrementalHoareTripleChecker+Valid, 9531 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 36.6s IncrementalHoareTripleChecker+Time [2021-12-18 16:34:03,113 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6869 Valid, 5842 Invalid, 15010 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [5473 Valid, 9531 Invalid, 6 Unknown, 0 Unchecked, 36.6s Time] [2021-12-18 16:34:03,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25771 states. [2021-12-18 16:34:04,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25771 to 19939. [2021-12-18 16:34:04,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19939 states, 14235 states have (on average 1.2527572883737268) internal successors, (17833), 14716 states have internal predecessors, (17833), 4415 states have call successors, (4415), 831 states have call predecessors, (4415), 1281 states have return successors, (6802), 4609 states have call predecessors, (6802), 4411 states have call successors, (6802) [2021-12-18 16:34:04,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19939 states to 19939 states and 29050 transitions. [2021-12-18 16:34:04,786 INFO L78 Accepts]: Start accepts. Automaton has 19939 states and 29050 transitions. Word has length 316 [2021-12-18 16:34:04,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 16:34:04,786 INFO L470 AbstractCegarLoop]: Abstraction has 19939 states and 29050 transitions. [2021-12-18 16:34:04,786 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 11.2) internal successors, (112), 4 states have internal predecessors, (112), 3 states have call successors, (39), 9 states have call predecessors, (39), 2 states have return successors, (33), 2 states have call predecessors, (33), 3 states have call successors, (33) [2021-12-18 16:34:04,786 INFO L276 IsEmpty]: Start isEmpty. Operand 19939 states and 29050 transitions. [2021-12-18 16:34:04,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 321 [2021-12-18 16:34:04,788 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 16:34:04,789 INFO L514 BasicCegarLoop]: trace histogram [16, 16, 16, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:34:04,789 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2021-12-18 16:34:04,789 INFO L402 AbstractCegarLoop]: === Iteration 41 === Targeting dlfb_usb_disconnectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-12-18 16:34:04,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 16:34:04,789 INFO L85 PathProgramCache]: Analyzing trace with hash -735441554, now seen corresponding path program 1 times [2021-12-18 16:34:04,789 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 16:34:04,789 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [126183990] [2021-12-18 16:34:04,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 16:34:04,789 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 16:34:04,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:34:05,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 16:34:05,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:34:05,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-18 16:34:05,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:34:05,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-12-18 16:34:05,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:34:05,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-18 16:34:05,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:34:05,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-12-18 16:34:05,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:34:05,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:34:05,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:34:05,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:34:05,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:34:05,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 16:34:05,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:34:05,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-18 16:34:05,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:34:05,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:34:05,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:34:05,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:34:05,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:34:05,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 16:34:05,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:34:05,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-12-18 16:34:05,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:34:05,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:34:05,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:34:05,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:34:05,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:34:05,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 16:34:05,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:34:05,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-12-18 16:34:05,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:34:05,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:34:05,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:34:05,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:34:05,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:34:05,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 16:34:05,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:34:05,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-12-18 16:34:05,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:34:05,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:34:05,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:34:05,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:34:05,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:34:05,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 16:34:05,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:34:05,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-12-18 16:34:05,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:34:05,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-12-18 16:34:05,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:34:05,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-12-18 16:34:05,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:34:05,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-12-18 16:34:05,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:34:05,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:34:05,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:34:05,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:34:05,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:34:05,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:34:05,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:34:05,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 16:34:05,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:34:05,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-18 16:34:05,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:34:05,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:34:05,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:34:05,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-12-18 16:34:05,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:34:05,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2021-12-18 16:34:05,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:34:05,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2021-12-18 16:34:05,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:34:05,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2021-12-18 16:34:05,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:34:05,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:34:05,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:34:05,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2021-12-18 16:34:05,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:34:05,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2021-12-18 16:34:05,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:34:05,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2021-12-18 16:34:05,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:34:05,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2021-12-18 16:34:05,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:34:05,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2021-12-18 16:34:05,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:34:05,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2021-12-18 16:34:05,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:34:05,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2021-12-18 16:34:05,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:34:05,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-12-18 16:34:05,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:34:05,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-18 16:34:05,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:34:05,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 284 [2021-12-18 16:34:05,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:34:05,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 289 [2021-12-18 16:34:05,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:34:05,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 16:34:05,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:34:05,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 298 [2021-12-18 16:34:05,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:34:05,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:34:05,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:34:05,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:34:05,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:34:05,632 INFO L134 CoverageAnalysis]: Checked inductivity of 626 backedges. 6 proven. 67 refuted. 0 times theorem prover too weak. 553 trivial. 0 not checked. [2021-12-18 16:34:05,632 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 16:34:05,633 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [126183990] [2021-12-18 16:34:05,633 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [126183990] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-18 16:34:05,633 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [674900525] [2021-12-18 16:34:05,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 16:34:05,633 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-18 16:34:05,633 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-18 16:34:05,639 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-18 16:34:05,640 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-12-18 16:34:06,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:34:06,643 INFO L263 TraceCheckSpWp]: Trace formula consists of 2802 conjuncts, 23 conjunts are in the unsatisfiable core [2021-12-18 16:34:06,649 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-18 16:34:07,500 INFO L134 CoverageAnalysis]: Checked inductivity of 626 backedges. 163 proven. 0 refuted. 0 times theorem prover too weak. 463 trivial. 0 not checked. [2021-12-18 16:34:07,501 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-18 16:34:07,501 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [674900525] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 16:34:07,501 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-18 16:34:07,501 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [16] total 27 [2021-12-18 16:34:07,501 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1584030162] [2021-12-18 16:34:07,501 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 16:34:07,502 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-12-18 16:34:07,502 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 16:34:07,502 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-12-18 16:34:07,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=647, Unknown=0, NotChecked=0, Total=702 [2021-12-18 16:34:07,502 INFO L87 Difference]: Start difference. First operand 19939 states and 29050 transitions. Second operand has 15 states, 14 states have (on average 9.857142857142858) internal successors, (138), 14 states have internal predecessors, (138), 7 states have call successors, (43), 2 states have call predecessors, (43), 4 states have return successors, (42), 7 states have call predecessors, (42), 7 states have call successors, (42) [2021-12-18 16:34:10,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 16:34:10,361 INFO L93 Difference]: Finished difference Result 41029 states and 59758 transitions. [2021-12-18 16:34:10,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-18 16:34:10,362 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 9.857142857142858) internal successors, (138), 14 states have internal predecessors, (138), 7 states have call successors, (43), 2 states have call predecessors, (43), 4 states have return successors, (42), 7 states have call predecessors, (42), 7 states have call successors, (42) Word has length 320 [2021-12-18 16:34:10,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 16:34:10,456 INFO L225 Difference]: With dead ends: 41029 [2021-12-18 16:34:10,456 INFO L226 Difference]: Without dead ends: 21608 [2021-12-18 16:34:10,521 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 444 GetRequests, 409 SyntacticMatches, 1 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=134, Invalid=1126, Unknown=0, NotChecked=0, Total=1260 [2021-12-18 16:34:10,522 INFO L933 BasicCegarLoop]: 2267 mSDtfsCounter, 1587 mSDsluCounter, 28071 mSDsCounter, 0 mSdLazyCounter, 493 mSolverCounterSat, 980 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1750 SdHoareTripleChecker+Valid, 30338 SdHoareTripleChecker+Invalid, 1473 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 980 IncrementalHoareTripleChecker+Valid, 493 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2021-12-18 16:34:10,522 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1750 Valid, 30338 Invalid, 1473 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [980 Valid, 493 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2021-12-18 16:34:10,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21608 states. [2021-12-18 16:34:12,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21608 to 19887. [2021-12-18 16:34:12,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19887 states, 14195 states have (on average 1.251497005988024) internal successors, (17765), 14672 states have internal predecessors, (17765), 4407 states have call successors, (4407), 827 states have call predecessors, (4407), 1277 states have return successors, (6759), 4605 states have call predecessors, (6759), 4403 states have call successors, (6759) [2021-12-18 16:34:12,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19887 states to 19887 states and 28931 transitions. [2021-12-18 16:34:12,294 INFO L78 Accepts]: Start accepts. Automaton has 19887 states and 28931 transitions. Word has length 320 [2021-12-18 16:34:12,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 16:34:12,295 INFO L470 AbstractCegarLoop]: Abstraction has 19887 states and 28931 transitions. [2021-12-18 16:34:12,295 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 9.857142857142858) internal successors, (138), 14 states have internal predecessors, (138), 7 states have call successors, (43), 2 states have call predecessors, (43), 4 states have return successors, (42), 7 states have call predecessors, (42), 7 states have call successors, (42) [2021-12-18 16:34:12,295 INFO L276 IsEmpty]: Start isEmpty. Operand 19887 states and 28931 transitions. [2021-12-18 16:34:12,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 352 [2021-12-18 16:34:12,298 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 16:34:12,298 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 14, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 16:34:12,329 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-12-18 16:34:12,511 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-18 16:34:12,512 INFO L402 AbstractCegarLoop]: === Iteration 42 === Targeting dlfb_usb_disconnectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-12-18 16:34:12,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 16:34:12,512 INFO L85 PathProgramCache]: Analyzing trace with hash 1907911823, now seen corresponding path program 1 times [2021-12-18 16:34:12,512 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 16:34:12,512 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1737286803] [2021-12-18 16:34:12,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 16:34:12,512 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 16:34:12,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:34:12,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 16:34:12,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:34:12,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-18 16:34:12,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:34:12,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-12-18 16:34:12,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:34:12,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-18 16:34:12,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:34:12,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-12-18 16:34:12,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:34:12,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:34:12,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:34:12,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:34:12,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:34:12,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 16:34:12,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:34:12,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-18 16:34:12,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:34:12,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:34:12,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:34:12,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:34:12,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:34:12,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 16:34:12,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:34:12,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-12-18 16:34:12,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:34:12,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:34:12,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:34:12,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:34:12,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:34:12,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 16:34:12,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:34:12,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-12-18 16:34:12,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:34:12,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:34:12,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:34:12,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:34:12,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:34:12,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 16:34:12,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:34:12,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-12-18 16:34:12,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:34:12,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:34:12,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:34:12,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:34:12,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:34:12,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 16:34:12,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:34:12,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-12-18 16:34:12,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:34:12,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-12-18 16:34:12,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:34:12,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-12-18 16:34:12,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:34:12,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-12-18 16:34:12,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:34:12,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:34:12,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:34:12,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:34:12,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:34:12,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:34:12,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:34:12,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 16:34:12,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:34:12,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-18 16:34:12,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:34:12,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:34:12,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:34:12,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-12-18 16:34:12,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:34:12,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2021-12-18 16:34:12,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:34:12,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2021-12-18 16:34:12,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:34:12,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2021-12-18 16:34:12,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:34:12,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:34:12,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:34:12,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:34:12,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:34:12,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:34:12,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:34:12,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 16:34:12,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:34:12,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-18 16:34:12,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:34:12,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:34:12,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:34:12,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-12-18 16:34:12,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:34:12,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2021-12-18 16:34:12,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:34:12,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 269 [2021-12-18 16:34:12,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:34:12,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 285 [2021-12-18 16:34:12,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:34:12,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 291 [2021-12-18 16:34:12,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:34:12,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 301 [2021-12-18 16:34:12,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:34:12,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-12-18 16:34:12,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:34:12,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-18 16:34:12,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:34:12,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 315 [2021-12-18 16:34:12,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:34:12,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 320 [2021-12-18 16:34:12,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:34:12,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 16:34:12,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:34:12,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 329 [2021-12-18 16:34:12,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:34:13,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:34:13,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:34:13,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:34:13,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:34:13,008 INFO L134 CoverageAnalysis]: Checked inductivity of 538 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 538 trivial. 0 not checked. [2021-12-18 16:34:13,008 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 16:34:13,009 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1737286803] [2021-12-18 16:34:13,009 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1737286803] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 16:34:13,009 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 16:34:13,009 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-12-18 16:34:13,009 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [170751007] [2021-12-18 16:34:13,009 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 16:34:13,010 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-12-18 16:34:13,010 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 16:34:13,010 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-12-18 16:34:13,011 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=132, Unknown=0, NotChecked=0, Total=156 [2021-12-18 16:34:13,011 INFO L87 Difference]: Start difference. First operand 19887 states and 28931 transitions. Second operand has 13 states, 12 states have (on average 11.0) internal successors, (132), 5 states have internal predecessors, (132), 5 states have call successors, (43), 11 states have call predecessors, (43), 1 states have return successors, (39), 3 states have call predecessors, (39), 4 states have call successors, (39) [2021-12-18 16:34:17,107 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:34:19,157 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:34:22,363 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:34:24,338 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.97s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:34:29,179 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:34:34,910 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:34:36,610 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:34:37,912 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:34:40,380 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.65s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:34:43,650 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:34:45,691 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:34:47,299 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.61s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:34:50,787 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:34:52,817 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:34:55,192 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-12-18 16:34:57,318 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-12-18 16:34:59,441 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-12-18 16:35:01,557 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-12-18 16:35:03,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 16:35:03,330 INFO L93 Difference]: Finished difference Result 30921 states and 44400 transitions. [2021-12-18 16:35:03,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-12-18 16:35:03,331 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 11.0) internal successors, (132), 5 states have internal predecessors, (132), 5 states have call successors, (43), 11 states have call predecessors, (43), 1 states have return successors, (39), 3 states have call predecessors, (39), 4 states have call successors, (39) Word has length 351 [2021-12-18 16:35:03,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 16:35:03,365 INFO L225 Difference]: With dead ends: 30921 [2021-12-18 16:35:03,365 INFO L226 Difference]: Without dead ends: 11564 [2021-12-18 16:35:03,407 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 189 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=249, Invalid=743, Unknown=0, NotChecked=0, Total=992 [2021-12-18 16:35:03,408 INFO L933 BasicCegarLoop]: 1558 mSDtfsCounter, 3973 mSDsluCounter, 5794 mSDsCounter, 0 mSdLazyCounter, 7842 mSolverCounterSat, 3455 mSolverCounterUnsat, 12 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 46.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3973 SdHoareTripleChecker+Valid, 7352 SdHoareTripleChecker+Invalid, 11309 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3455 IncrementalHoareTripleChecker+Valid, 7842 IncrementalHoareTripleChecker+Invalid, 12 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 49.0s IncrementalHoareTripleChecker+Time [2021-12-18 16:35:03,408 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3973 Valid, 7352 Invalid, 11309 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3455 Valid, 7842 Invalid, 12 Unknown, 0 Unchecked, 49.0s Time] [2021-12-18 16:35:03,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11564 states. [2021-12-18 16:35:04,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11564 to 8840. [2021-12-18 16:35:04,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8840 states, 5971 states have (on average 1.197119410484006) internal successors, (7148), 6187 states have internal predecessors, (7148), 2201 states have call successors, (2201), 643 states have call predecessors, (2201), 660 states have return successors, (2269), 2132 states have call predecessors, (2269), 2197 states have call successors, (2269) [2021-12-18 16:35:04,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8840 states to 8840 states and 11618 transitions. [2021-12-18 16:35:04,097 INFO L78 Accepts]: Start accepts. Automaton has 8840 states and 11618 transitions. Word has length 351 [2021-12-18 16:35:04,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 16:35:04,098 INFO L470 AbstractCegarLoop]: Abstraction has 8840 states and 11618 transitions. [2021-12-18 16:35:04,098 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 11.0) internal successors, (132), 5 states have internal predecessors, (132), 5 states have call successors, (43), 11 states have call predecessors, (43), 1 states have return successors, (39), 3 states have call predecessors, (39), 4 states have call successors, (39) [2021-12-18 16:35:04,098 INFO L276 IsEmpty]: Start isEmpty. Operand 8840 states and 11618 transitions. [2021-12-18 16:35:04,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 431 [2021-12-18 16:35:04,102 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 16:35:04,102 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 14, 7, 7, 7, 7, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2021-12-18 16:35:04,102 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2021-12-18 16:35:04,103 INFO L402 AbstractCegarLoop]: === Iteration 43 === 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 31 more)] === [2021-12-18 16:35:04,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 16:35:04,103 INFO L85 PathProgramCache]: Analyzing trace with hash -1525935161, now seen corresponding path program 1 times [2021-12-18 16:35:04,103 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 16:35:04,103 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1914904853] [2021-12-18 16:35:04,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 16:35:04,104 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 16:35:04,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:35:04,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 16:35:04,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:35:04,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-18 16:35:04,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:35:04,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-12-18 16:35:04,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:35:04,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-18 16:35:04,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:35:04,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-12-18 16:35:04,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:35:04,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:35:04,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:35:04,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:35:04,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:35:04,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 16:35:04,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:35:04,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-18 16:35:04,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:35:04,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:35:04,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:35:04,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:35:04,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:35:04,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 16:35:04,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:35:04,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-12-18 16:35:04,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:35:04,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:35:04,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:35:04,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:35:04,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:35:04,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 16:35:04,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:35:04,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-12-18 16:35:04,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:35:04,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:35:04,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:35:04,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:35:04,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:35:04,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 16:35:04,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:35:04,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-12-18 16:35:04,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:35:04,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:35:04,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:35:04,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:35:04,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:35:04,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 16:35:04,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:35:04,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-12-18 16:35:04,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:35:04,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-12-18 16:35:04,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:35:04,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-12-18 16:35:04,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:35:04,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-12-18 16:35:04,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:35:04,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:35:04,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:35:04,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:35:04,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:35:04,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:35:04,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:35:04,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 16:35:04,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:35:04,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-18 16:35:04,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:35:04,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:35:04,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:35:04,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-12-18 16:35:04,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:35:04,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2021-12-18 16:35:04,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:35:04,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2021-12-18 16:35:04,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:35:04,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2021-12-18 16:35:04,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:35:04,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:35:04,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:35:04,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:35:04,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:35:04,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:35:04,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:35:04,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 16:35:04,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:35:04,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-18 16:35:04,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:35:04,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:35:04,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:35:04,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-12-18 16:35:04,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:35:04,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 262 [2021-12-18 16:35:04,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:35:04,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 267 [2021-12-18 16:35:04,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:35:04,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:35:04,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:35:04,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:35:04,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:35:04,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:35:04,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:35:04,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 16:35:04,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:35:04,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-18 16:35:04,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:35:04,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:35:04,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:35:04,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-12-18 16:35:04,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:35:04,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 313 [2021-12-18 16:35:04,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:35:04,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 318 [2021-12-18 16:35:04,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:35:04,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 322 [2021-12-18 16:35:04,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:35:04,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2021-12-18 16:35:04,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:35:04,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 332 [2021-12-18 16:35:04,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:35:04,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:35:04,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:35:04,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 345 [2021-12-18 16:35:04,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:35:04,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 350 [2021-12-18 16:35:04,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:35:04,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 355 [2021-12-18 16:35:04,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:35:04,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:35:04,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:35:04,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 368 [2021-12-18 16:35:04,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:35:04,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 376 [2021-12-18 16:35:04,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:35:04,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:35:04,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:35:04,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 389 [2021-12-18 16:35:04,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:35:04,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 394 [2021-12-18 16:35:04,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:35:04,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 399 [2021-12-18 16:35:04,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:35:04,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:35:04,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:35:04,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 412 [2021-12-18 16:35:04,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:35:04,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 420 [2021-12-18 16:35:04,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:35:04,643 INFO L134 CoverageAnalysis]: Checked inductivity of 811 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 811 trivial. 0 not checked. [2021-12-18 16:35:04,643 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 16:35:04,643 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1914904853] [2021-12-18 16:35:04,644 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1914904853] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 16:35:04,644 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 16:35:04,644 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-12-18 16:35:04,644 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1592159769] [2021-12-18 16:35:04,644 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 16:35:04,645 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-12-18 16:35:04,645 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 16:35:04,646 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-12-18 16:35:04,646 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2021-12-18 16:35:04,646 INFO L87 Difference]: Start difference. First operand 8840 states and 11618 transitions. Second operand has 10 states, 10 states have (on average 12.2) internal successors, (122), 4 states have internal predecessors, (122), 2 states have call successors, (45), 8 states have call predecessors, (45), 1 states have return successors, (44), 2 states have call predecessors, (44), 2 states have call successors, (44) [2021-12-18 16:35:08,182 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:35:10,235 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:35:12,271 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:35:15,396 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:35:17,522 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:35:25,683 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.85s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:35:27,518 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.83s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:35:29,581 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:35:31,252 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.67s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:35:33,642 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:35:35,972 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-12-18 16:35:38,166 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.19s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-12-18 16:35:40,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 16:35:40,286 INFO L93 Difference]: Finished difference Result 19814 states and 26738 transitions. [2021-12-18 16:35:40,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-18 16:35:40,287 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 12.2) internal successors, (122), 4 states have internal predecessors, (122), 2 states have call successors, (45), 8 states have call predecessors, (45), 1 states have return successors, (44), 2 states have call predecessors, (44), 2 states have call successors, (44) Word has length 430 [2021-12-18 16:35:40,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 16:35:40,319 INFO L225 Difference]: With dead ends: 19814 [2021-12-18 16:35:40,320 INFO L226 Difference]: Without dead ends: 11051 [2021-12-18 16:35:40,339 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 146 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=68, Invalid=204, Unknown=0, NotChecked=0, Total=272 [2021-12-18 16:35:40,339 INFO L933 BasicCegarLoop]: 1927 mSDtfsCounter, 3339 mSDsluCounter, 4543 mSDsCounter, 0 mSdLazyCounter, 5338 mSolverCounterSat, 2706 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 32.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3430 SdHoareTripleChecker+Valid, 6470 SdHoareTripleChecker+Invalid, 8053 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2706 IncrementalHoareTripleChecker+Valid, 5338 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 34.4s IncrementalHoareTripleChecker+Time [2021-12-18 16:35:40,339 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3430 Valid, 6470 Invalid, 8053 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2706 Valid, 5338 Invalid, 9 Unknown, 0 Unchecked, 34.4s Time] [2021-12-18 16:35:40,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11051 states. [2021-12-18 16:35:41,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11051 to 8842. [2021-12-18 16:35:41,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8842 states, 5973 states have (on average 1.1970534069981584) internal successors, (7150), 6189 states have internal predecessors, (7150), 2201 states have call successors, (2201), 643 states have call predecessors, (2201), 660 states have return successors, (2269), 2132 states have call predecessors, (2269), 2197 states have call successors, (2269) [2021-12-18 16:35:41,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8842 states to 8842 states and 11620 transitions. [2021-12-18 16:35:41,166 INFO L78 Accepts]: Start accepts. Automaton has 8842 states and 11620 transitions. Word has length 430 [2021-12-18 16:35:41,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 16:35:41,168 INFO L470 AbstractCegarLoop]: Abstraction has 8842 states and 11620 transitions. [2021-12-18 16:35:41,168 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 12.2) internal successors, (122), 4 states have internal predecessors, (122), 2 states have call successors, (45), 8 states have call predecessors, (45), 1 states have return successors, (44), 2 states have call predecessors, (44), 2 states have call successors, (44) [2021-12-18 16:35:41,168 INFO L276 IsEmpty]: Start isEmpty. Operand 8842 states and 11620 transitions. [2021-12-18 16:35:41,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 444 [2021-12-18 16:35:41,199 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 16:35:41,200 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 14, 7, 7, 7, 7, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 16:35:41,200 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2021-12-18 16:35:41,200 INFO L402 AbstractCegarLoop]: === Iteration 44 === 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 31 more)] === [2021-12-18 16:35:41,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 16:35:41,201 INFO L85 PathProgramCache]: Analyzing trace with hash 1526511189, now seen corresponding path program 1 times [2021-12-18 16:35:41,201 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 16:35:41,201 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1039599302] [2021-12-18 16:35:41,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 16:35:41,201 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 16:35:41,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:35:41,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 16:35:41,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:35:41,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-18 16:35:41,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:35:41,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-12-18 16:35:41,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:35:41,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-18 16:35:41,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:35:41,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-12-18 16:35:41,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:35:41,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:35:41,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:35:41,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:35:41,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:35:41,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 16:35:41,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:35:41,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-18 16:35:41,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:35:41,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:35:41,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:35:41,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:35:41,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:35:41,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 16:35:41,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:35:41,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-12-18 16:35:41,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:35:41,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:35:41,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:35:41,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:35:41,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:35:41,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 16:35:41,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:35:41,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-12-18 16:35:41,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:35:41,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:35:41,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:35:41,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:35:41,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:35:41,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 16:35:41,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:35:41,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-12-18 16:35:41,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:35:41,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:35:41,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:35:41,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:35:41,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:35:41,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 16:35:41,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:35:41,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-12-18 16:35:41,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:35:41,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-12-18 16:35:41,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:35:41,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-12-18 16:35:41,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:35:41,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-12-18 16:35:41,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:35:41,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:35:41,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:35:41,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:35:41,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:35:41,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:35:41,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:35:41,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 16:35:41,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:35:41,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-18 16:35:41,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:35:41,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:35:41,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:35:41,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-12-18 16:35:41,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:35:41,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2021-12-18 16:35:41,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:35:41,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2021-12-18 16:35:41,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:35:41,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2021-12-18 16:35:41,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:35:41,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:35:41,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:35:41,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:35:41,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:35:41,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:35:41,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:35:41,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 16:35:41,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:35:41,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-18 16:35:41,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:35:41,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:35:41,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:35:41,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-12-18 16:35:41,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:35:41,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2021-12-18 16:35:41,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:35:41,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 264 [2021-12-18 16:35:41,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:35:41,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 275 [2021-12-18 16:35:41,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:35:41,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 280 [2021-12-18 16:35:41,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:35:41,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:35:41,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:35:41,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:35:41,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:35:41,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:35:41,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:35:41,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 16:35:41,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:35:41,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-18 16:35:41,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:35:41,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:35:41,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:35:41,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-12-18 16:35:41,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:35:41,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 326 [2021-12-18 16:35:41,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:35:41,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 331 [2021-12-18 16:35:41,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:35:41,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2021-12-18 16:35:41,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:35:41,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 340 [2021-12-18 16:35:41,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:35:41,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 345 [2021-12-18 16:35:41,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:35:41,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:35:41,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:35:41,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 358 [2021-12-18 16:35:41,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:35:41,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 363 [2021-12-18 16:35:41,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:35:41,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 368 [2021-12-18 16:35:41,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:35:41,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:35:41,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:35:41,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 381 [2021-12-18 16:35:41,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:35:41,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 389 [2021-12-18 16:35:41,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:35:41,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:35:41,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:35:41,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 402 [2021-12-18 16:35:41,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:35:41,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 407 [2021-12-18 16:35:41,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:35:41,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 412 [2021-12-18 16:35:41,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:35:41,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:35:41,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:35:41,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2021-12-18 16:35:41,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:35:41,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 433 [2021-12-18 16:35:41,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:35:41,934 INFO L134 CoverageAnalysis]: Checked inductivity of 817 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 817 trivial. 0 not checked. [2021-12-18 16:35:41,934 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 16:35:41,934 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1039599302] [2021-12-18 16:35:41,934 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1039599302] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 16:35:41,935 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 16:35:41,935 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-18 16:35:41,935 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [728382639] [2021-12-18 16:35:41,935 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 16:35:41,935 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-18 16:35:41,936 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 16:35:41,936 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-18 16:35:41,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2021-12-18 16:35:41,936 INFO L87 Difference]: Start difference. First operand 8842 states and 11620 transitions. Second operand has 9 states, 9 states have (on average 14.11111111111111) internal successors, (127), 3 states have internal predecessors, (127), 3 states have call successors, (47), 8 states have call predecessors, (47), 1 states have return successors, (46), 3 states have call predecessors, (46), 3 states have call successors, (46) [2021-12-18 16:35:46,263 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:35:48,309 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:35:50,357 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:35:52,403 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:35:55,411 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:35:57,553 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:36:00,539 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:36:02,699 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:36:09,079 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:36:11,285 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 16:36:13,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 16:36:13,244 INFO L93 Difference]: Finished difference Result 19085 states and 25559 transitions. [2021-12-18 16:36:13,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-12-18 16:36:13,245 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 14.11111111111111) internal successors, (127), 3 states have internal predecessors, (127), 3 states have call successors, (47), 8 states have call predecessors, (47), 1 states have return successors, (46), 3 states have call predecessors, (46), 3 states have call successors, (46) Word has length 443 [2021-12-18 16:36:13,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 16:36:13,276 INFO L225 Difference]: With dead ends: 19085 [2021-12-18 16:36:13,276 INFO L226 Difference]: Without dead ends: 10323 [2021-12-18 16:36:13,291 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 163 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=76, Invalid=164, Unknown=0, NotChecked=0, Total=240 [2021-12-18 16:36:13,292 INFO L933 BasicCegarLoop]: 1536 mSDtfsCounter, 3868 mSDsluCounter, 1882 mSDsCounter, 0 mSdLazyCounter, 3351 mSolverCounterSat, 2546 mSolverCounterUnsat, 10 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 28.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4046 SdHoareTripleChecker+Valid, 3418 SdHoareTripleChecker+Invalid, 5907 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2546 IncrementalHoareTripleChecker+Valid, 3351 IncrementalHoareTripleChecker+Invalid, 10 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 30.0s IncrementalHoareTripleChecker+Time [2021-12-18 16:36:13,292 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4046 Valid, 3418 Invalid, 5907 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2546 Valid, 3351 Invalid, 10 Unknown, 0 Unchecked, 30.0s Time] [2021-12-18 16:36:13,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10323 states. [2021-12-18 16:36:14,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10323 to 8842. [2021-12-18 16:36:14,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8842 states, 5973 states have (on average 1.1968859869412356) internal successors, (7149), 6189 states have internal predecessors, (7149), 2201 states have call successors, (2201), 643 states have call predecessors, (2201), 660 states have return successors, (2269), 2132 states have call predecessors, (2269), 2197 states have call successors, (2269) [2021-12-18 16:36:14,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8842 states to 8842 states and 11619 transitions. [2021-12-18 16:36:14,111 INFO L78 Accepts]: Start accepts. Automaton has 8842 states and 11619 transitions. Word has length 443 [2021-12-18 16:36:14,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 16:36:14,111 INFO L470 AbstractCegarLoop]: Abstraction has 8842 states and 11619 transitions. [2021-12-18 16:36:14,111 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 14.11111111111111) internal successors, (127), 3 states have internal predecessors, (127), 3 states have call successors, (47), 8 states have call predecessors, (47), 1 states have return successors, (46), 3 states have call predecessors, (46), 3 states have call successors, (46) [2021-12-18 16:36:14,111 INFO L276 IsEmpty]: Start isEmpty. Operand 8842 states and 11619 transitions. [2021-12-18 16:36:14,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 444 [2021-12-18 16:36:14,115 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 16:36:14,115 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 14, 7, 7, 7, 7, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 16:36:14,115 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2021-12-18 16:36:14,115 INFO L402 AbstractCegarLoop]: === Iteration 45 === 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 31 more)] === [2021-12-18 16:36:14,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 16:36:14,116 INFO L85 PathProgramCache]: Analyzing trace with hash 158050579, now seen corresponding path program 1 times [2021-12-18 16:36:14,116 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 16:36:14,116 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1456577130] [2021-12-18 16:36:14,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 16:36:14,116 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 16:36:14,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:36:14,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 16:36:14,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:36:14,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-18 16:36:14,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:36:14,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-12-18 16:36:14,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:36:14,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-18 16:36:14,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:36:14,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-12-18 16:36:14,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:36:14,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:36:14,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:36:14,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:36:14,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:36:14,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 16:36:14,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:36:14,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-18 16:36:14,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:36:14,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:36:14,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:36:14,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:36:14,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:36:14,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 16:36:14,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:36:14,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-12-18 16:36:14,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:36:14,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:36:14,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:36:14,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:36:14,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:36:14,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 16:36:14,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:36:14,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-12-18 16:36:14,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:36:14,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:36:14,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:36:14,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:36:14,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:36:14,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 16:36:14,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:36:14,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-12-18 16:36:14,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:36:14,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:36:14,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:36:14,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 16:36:14,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:36:14,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 16:36:14,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:36:14,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-12-18 16:36:14,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:36:14,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-12-18 16:36:14,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:36:14,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-12-18 16:36:14,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:36:14,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-12-18 16:36:14,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:36:14,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:36:14,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:36:14,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:36:14,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:36:14,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:36:14,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:36:14,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 16:36:14,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:36:14,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-18 16:36:14,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:36:14,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:36:14,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:36:14,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-12-18 16:36:14,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:36:14,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2021-12-18 16:36:14,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:36:14,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2021-12-18 16:36:14,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:36:14,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2021-12-18 16:36:14,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:36:14,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:36:14,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:36:14,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:36:14,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:36:14,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:36:14,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:36:14,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 16:36:14,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:36:14,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-18 16:36:14,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:36:14,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:36:14,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:36:14,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-12-18 16:36:14,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:36:14,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2021-12-18 16:36:14,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:36:14,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 264 [2021-12-18 16:36:14,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:36:14,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 275 [2021-12-18 16:36:14,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:36:14,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 280 [2021-12-18 16:36:14,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:36:14,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:36:14,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:36:14,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:36:14,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:36:14,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:36:14,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:36:14,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 16:36:14,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:36:14,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-18 16:36:14,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:36:14,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:36:14,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:36:14,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-12-18 16:36:14,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:36:14,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 326 [2021-12-18 16:36:14,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:36:14,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 331 [2021-12-18 16:36:14,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:36:14,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2021-12-18 16:36:14,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:36:14,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 340 [2021-12-18 16:36:14,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:36:14,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 345 [2021-12-18 16:36:14,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:36:14,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:36:14,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:36:14,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 358 [2021-12-18 16:36:14,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:36:14,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 363 [2021-12-18 16:36:14,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:36:14,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 368 [2021-12-18 16:36:14,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:36:14,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:36:14,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:36:14,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 381 [2021-12-18 16:36:14,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:36:14,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 389 [2021-12-18 16:36:14,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:36:14,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:36:14,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:36:14,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 402 [2021-12-18 16:36:14,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:36:14,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 407 [2021-12-18 16:36:14,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:36:14,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 412 [2021-12-18 16:36:14,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:36:14,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 16:36:14,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:36:14,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2021-12-18 16:36:14,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:36:14,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 433 [2021-12-18 16:36:14,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:36:14,978 INFO L134 CoverageAnalysis]: Checked inductivity of 817 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 799 trivial. 0 not checked. [2021-12-18 16:36:14,978 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 16:36:14,979 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1456577130] [2021-12-18 16:36:14,979 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1456577130] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-18 16:36:14,979 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [794159144] [2021-12-18 16:36:14,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 16:36:14,979 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-18 16:36:14,979 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-18 16:36:14,980 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-18 16:36:14,981 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-12-18 16:36:16,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:36:16,219 INFO L263 TraceCheckSpWp]: Trace formula consists of 3521 conjuncts, 89 conjunts are in the unsatisfiable core [2021-12-18 16:36:16,231 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-18 16:36:16,968 INFO L134 CoverageAnalysis]: Checked inductivity of 817 backedges. 277 proven. 0 refuted. 0 times theorem prover too weak. 540 trivial. 0 not checked. [2021-12-18 16:36:16,968 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-18 16:36:16,968 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [794159144] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 16:36:16,968 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-18 16:36:16,968 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [16] total 16 [2021-12-18 16:36:16,969 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [590646002] [2021-12-18 16:36:16,969 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 16:36:16,970 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-12-18 16:36:16,970 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 16:36:16,970 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-12-18 16:36:16,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=208, Unknown=0, NotChecked=0, Total=240 [2021-12-18 16:36:16,971 INFO L87 Difference]: Start difference. First operand 8842 states and 11619 transitions. Second operand has 10 states, 10 states have (on average 16.2) internal successors, (162), 8 states have internal predecessors, (162), 3 states have call successors, (54), 2 states have call predecessors, (54), 4 states have return successors, (53), 5 states have call predecessors, (53), 3 states have call successors, (53) [2021-12-18 16:36:18,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 16:36:18,051 INFO L93 Difference]: Finished difference Result 18053 states and 23787 transitions. [2021-12-18 16:36:18,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-12-18 16:36:18,052 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 16.2) internal successors, (162), 8 states have internal predecessors, (162), 3 states have call successors, (54), 2 states have call predecessors, (54), 4 states have return successors, (53), 5 states have call predecessors, (53), 3 states have call successors, (53) Word has length 443 [2021-12-18 16:36:18,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 16:36:18,083 INFO L225 Difference]: With dead ends: 18053 [2021-12-18 16:36:18,084 INFO L226 Difference]: Without dead ends: 9252 [2021-12-18 16:36:18,108 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 607 GetRequests, 587 SyntacticMatches, 2 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=50, Invalid=330, Unknown=0, NotChecked=0, Total=380 [2021-12-18 16:36:18,109 INFO L933 BasicCegarLoop]: 1798 mSDtfsCounter, 149 mSDsluCounter, 14287 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 230 SdHoareTripleChecker+Valid, 16085 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-18 16:36:18,109 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [230 Valid, 16085 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-18 16:36:18,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9252 states. [2021-12-18 16:36:18,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9252 to 8853. [2021-12-18 16:36:18,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8853 states, 5981 states have (on average 1.1966226383547902) internal successors, (7157), 6197 states have internal predecessors, (7157), 2202 states have call successors, (2202), 643 states have call predecessors, (2202), 662 states have return successors, (2275), 2135 states have call predecessors, (2275), 2198 states have call successors, (2275) [2021-12-18 16:36:18,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8853 states to 8853 states and 11634 transitions. [2021-12-18 16:36:18,951 INFO L78 Accepts]: Start accepts. Automaton has 8853 states and 11634 transitions. Word has length 443 [2021-12-18 16:36:18,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 16:36:18,952 INFO L470 AbstractCegarLoop]: Abstraction has 8853 states and 11634 transitions. [2021-12-18 16:36:18,952 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 16.2) internal successors, (162), 8 states have internal predecessors, (162), 3 states have call successors, (54), 2 states have call predecessors, (54), 4 states have return successors, (53), 5 states have call predecessors, (53), 3 states have call successors, (53) [2021-12-18 16:36:18,952 INFO L276 IsEmpty]: Start isEmpty. Operand 8853 states and 11634 transitions. [2021-12-18 16:36:18,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 507 [2021-12-18 16:36:18,956 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 16:36:18,956 INFO L514 BasicCegarLoop]: trace histogram [20, 20, 20, 10, 10, 7, 7, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 16:36:18,980 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-12-18 16:36:19,156 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable44 [2021-12-18 16:36:19,157 INFO L402 AbstractCegarLoop]: === Iteration 46 === 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 31 more)] === [2021-12-18 16:36:19,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 16:36:19,157 INFO L85 PathProgramCache]: Analyzing trace with hash 1841672706, now seen corresponding path program 1 times [2021-12-18 16:36:19,157 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 16:36:19,157 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [145348619] [2021-12-18 16:36:19,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 16:36:19,158 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 16:36:19,229 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-18 16:36:19,229 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [662822200] [2021-12-18 16:36:19,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 16:36:19,230 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-18 16:36:19,230 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-18 16:36:19,230 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-18 16:36:19,232 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-12-18 16:36:20,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:36:20,907 INFO L263 TraceCheckSpWp]: Trace formula consists of 3737 conjuncts, 40 conjunts are in the unsatisfiable core [2021-12-18 16:36:20,915 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-18 16:36:22,142 INFO L134 CoverageAnalysis]: Checked inductivity of 1315 backedges. 351 proven. 3 refuted. 0 times theorem prover too weak. 961 trivial. 0 not checked. [2021-12-18 16:36:22,142 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-18 16:36:23,782 INFO L134 CoverageAnalysis]: Checked inductivity of 1315 backedges. 6 proven. 75 refuted. 0 times theorem prover too weak. 1234 trivial. 0 not checked. [2021-12-18 16:36:23,783 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 16:36:23,783 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [145348619] [2021-12-18 16:36:23,783 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-12-18 16:36:23,783 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [662822200] [2021-12-18 16:36:23,783 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [662822200] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-18 16:36:23,783 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-12-18 16:36:23,783 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 14 [2021-12-18 16:36:23,783 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [238847383] [2021-12-18 16:36:23,784 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-12-18 16:36:23,784 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-12-18 16:36:23,784 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 16:36:23,785 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-12-18 16:36:23,785 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2021-12-18 16:36:23,785 INFO L87 Difference]: Start difference. First operand 8853 states and 11634 transitions. Second operand has 14 states, 13 states have (on average 16.384615384615383) internal successors, (213), 12 states have internal predecessors, (213), 5 states have call successors, (101), 2 states have call predecessors, (101), 5 states have return successors, (102), 6 states have call predecessors, (102), 5 states have call successors, (102) [2021-12-18 16:36:25,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 16:36:25,046 INFO L93 Difference]: Finished difference Result 17687 states and 23242 transitions. [2021-12-18 16:36:25,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-18 16:36:25,047 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 16.384615384615383) internal successors, (213), 12 states have internal predecessors, (213), 5 states have call successors, (101), 2 states have call predecessors, (101), 5 states have return successors, (102), 6 states have call predecessors, (102), 5 states have call successors, (102) Word has length 506 [2021-12-18 16:36:25,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 16:36:25,071 INFO L225 Difference]: With dead ends: 17687 [2021-12-18 16:36:25,071 INFO L226 Difference]: Without dead ends: 8853 [2021-12-18 16:36:25,092 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1012 GetRequests, 997 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=44, Invalid=196, Unknown=0, NotChecked=0, Total=240 [2021-12-18 16:36:25,093 INFO L933 BasicCegarLoop]: 1703 mSDtfsCounter, 603 mSDsluCounter, 14811 mSDsCounter, 0 mSdLazyCounter, 231 mSolverCounterSat, 175 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 777 SdHoareTripleChecker+Valid, 16514 SdHoareTripleChecker+Invalid, 406 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 175 IncrementalHoareTripleChecker+Valid, 231 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-12-18 16:36:25,093 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [777 Valid, 16514 Invalid, 406 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [175 Valid, 231 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-12-18 16:36:25,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8853 states. [2021-12-18 16:36:25,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8853 to 8853. [2021-12-18 16:36:25,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8853 states, 5981 states have (on average 1.1964554422337401) internal successors, (7156), 6196 states have internal predecessors, (7156), 2202 states have call successors, (2202), 643 states have call predecessors, (2202), 662 states have return successors, (2275), 2135 states have call predecessors, (2275), 2198 states have call successors, (2275) [2021-12-18 16:36:25,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8853 states to 8853 states and 11633 transitions. [2021-12-18 16:36:25,783 INFO L78 Accepts]: Start accepts. Automaton has 8853 states and 11633 transitions. Word has length 506 [2021-12-18 16:36:25,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 16:36:25,783 INFO L470 AbstractCegarLoop]: Abstraction has 8853 states and 11633 transitions. [2021-12-18 16:36:25,783 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 16.384615384615383) internal successors, (213), 12 states have internal predecessors, (213), 5 states have call successors, (101), 2 states have call predecessors, (101), 5 states have return successors, (102), 6 states have call predecessors, (102), 5 states have call successors, (102) [2021-12-18 16:36:25,783 INFO L276 IsEmpty]: Start isEmpty. Operand 8853 states and 11633 transitions. [2021-12-18 16:36:25,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 469 [2021-12-18 16:36:25,787 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 16:36:25,787 INFO L514 BasicCegarLoop]: trace histogram [16, 16, 16, 8, 8, 7, 7, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 16:36:25,818 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2021-12-18 16:36:25,988 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable45 [2021-12-18 16:36:25,988 INFO L402 AbstractCegarLoop]: === Iteration 47 === 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 31 more)] === [2021-12-18 16:36:25,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 16:36:25,988 INFO L85 PathProgramCache]: Analyzing trace with hash 1731623799, now seen corresponding path program 1 times [2021-12-18 16:36:25,988 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 16:36:25,989 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [84655661] [2021-12-18 16:36:25,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 16:36:25,989 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 16:36:26,054 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-18 16:36:26,054 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [869971855] [2021-12-18 16:36:26,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 16:36:26,055 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-18 16:36:26,055 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-18 16:36:26,056 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-18 16:36:26,066 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-12-18 16:36:27,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:36:27,776 INFO L263 TraceCheckSpWp]: Trace formula consists of 3611 conjuncts, 89 conjunts are in the unsatisfiable core [2021-12-18 16:36:27,783 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-18 16:36:28,445 INFO L134 CoverageAnalysis]: Checked inductivity of 954 backedges. 340 proven. 0 refuted. 0 times theorem prover too weak. 614 trivial. 0 not checked. [2021-12-18 16:36:28,446 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-18 16:36:28,446 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 16:36:28,446 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [84655661] [2021-12-18 16:36:28,446 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-12-18 16:36:28,446 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [869971855] [2021-12-18 16:36:28,446 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [869971855] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 16:36:28,446 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 16:36:28,446 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-12-18 16:36:28,446 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [992593373] [2021-12-18 16:36:28,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 16:36:28,447 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-12-18 16:36:28,447 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 16:36:28,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-12-18 16:36:28,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-12-18 16:36:28,447 INFO L87 Difference]: Start difference. First operand 8853 states and 11633 transitions. Second operand has 10 states, 10 states have (on average 17.6) internal successors, (176), 8 states have internal predecessors, (176), 3 states have call successors, (60), 2 states have call predecessors, (60), 4 states have return successors, (60), 5 states have call predecessors, (60), 3 states have call successors, (60) [2021-12-18 16:36:29,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 16:36:29,269 INFO L93 Difference]: Finished difference Result 18061 states and 23795 transitions. [2021-12-18 16:36:29,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-12-18 16:36:29,271 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 17.6) internal successors, (176), 8 states have internal predecessors, (176), 3 states have call successors, (60), 2 states have call predecessors, (60), 4 states have return successors, (60), 5 states have call predecessors, (60), 3 states have call successors, (60) Word has length 468 [2021-12-18 16:36:29,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 16:36:29,292 INFO L225 Difference]: With dead ends: 18061 [2021-12-18 16:36:29,292 INFO L226 Difference]: Without dead ends: 9260 [2021-12-18 16:36:29,311 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 470 GetRequests, 459 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2021-12-18 16:36:29,311 INFO L933 BasicCegarLoop]: 2024 mSDtfsCounter, 153 mSDsluCounter, 15956 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 233 SdHoareTripleChecker+Valid, 17980 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-18 16:36:29,311 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [233 Valid, 17980 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-18 16:36:29,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9260 states. [2021-12-18 16:36:30,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9260 to 8855. [2021-12-18 16:36:30,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8855 states, 5983 states have (on average 1.196389771017884) internal successors, (7158), 6197 states have internal predecessors, (7158), 2202 states have call successors, (2202), 643 states have call predecessors, (2202), 662 states have return successors, (2275), 2136 states have call predecessors, (2275), 2198 states have call successors, (2275) [2021-12-18 16:36:30,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8855 states to 8855 states and 11635 transitions. [2021-12-18 16:36:30,114 INFO L78 Accepts]: Start accepts. Automaton has 8855 states and 11635 transitions. Word has length 468 [2021-12-18 16:36:30,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 16:36:30,115 INFO L470 AbstractCegarLoop]: Abstraction has 8855 states and 11635 transitions. [2021-12-18 16:36:30,115 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 17.6) internal successors, (176), 8 states have internal predecessors, (176), 3 states have call successors, (60), 2 states have call predecessors, (60), 4 states have return successors, (60), 5 states have call predecessors, (60), 3 states have call successors, (60) [2021-12-18 16:36:30,116 INFO L276 IsEmpty]: Start isEmpty. Operand 8855 states and 11635 transitions. [2021-12-18 16:36:30,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 511 [2021-12-18 16:36:30,121 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 16:36:30,122 INFO L514 BasicCegarLoop]: trace histogram [20, 20, 20, 10, 10, 7, 7, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 16:36:30,170 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2021-12-18 16:36:30,326 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable46 [2021-12-18 16:36:30,326 INFO L402 AbstractCegarLoop]: === Iteration 48 === 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 31 more)] === [2021-12-18 16:36:30,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 16:36:30,327 INFO L85 PathProgramCache]: Analyzing trace with hash 1017853669, now seen corresponding path program 1 times [2021-12-18 16:36:30,327 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 16:36:30,327 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [922601116] [2021-12-18 16:36:30,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 16:36:30,327 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 16:36:30,457 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-18 16:36:30,468 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1421994535] [2021-12-18 16:36:30,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 16:36:30,468 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-18 16:36:30,468 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-18 16:36:30,487 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-18 16:36:30,554 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2021-12-18 16:36:32,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:36:32,854 INFO L263 TraceCheckSpWp]: Trace formula consists of 3755 conjuncts, 48 conjunts are in the unsatisfiable core [2021-12-18 16:36:32,860 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-18 16:36:33,658 INFO L134 CoverageAnalysis]: Checked inductivity of 1315 backedges. 481 proven. 3 refuted. 0 times theorem prover too weak. 831 trivial. 0 not checked. [2021-12-18 16:36:33,658 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-18 16:36:34,810 INFO L134 CoverageAnalysis]: Checked inductivity of 1315 backedges. 18 proven. 63 refuted. 0 times theorem prover too weak. 1234 trivial. 0 not checked. [2021-12-18 16:36:34,810 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 16:36:34,810 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [922601116] [2021-12-18 16:36:34,810 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-12-18 16:36:34,810 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1421994535] [2021-12-18 16:36:34,810 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1421994535] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-18 16:36:34,810 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-12-18 16:36:34,810 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 14 [2021-12-18 16:36:34,810 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [24476775] [2021-12-18 16:36:34,810 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-12-18 16:36:34,811 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-12-18 16:36:34,811 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 16:36:34,811 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-12-18 16:36:34,812 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2021-12-18 16:36:34,812 INFO L87 Difference]: Start difference. First operand 8855 states and 11635 transitions. Second operand has 14 states, 13 states have (on average 16.53846153846154) internal successors, (215), 12 states have internal predecessors, (215), 5 states have call successors, (101), 2 states have call predecessors, (101), 5 states have return successors, (102), 6 states have call predecessors, (102), 5 states have call successors, (102) [2021-12-18 16:36:35,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 16:36:35,853 INFO L93 Difference]: Finished difference Result 17686 states and 23237 transitions. [2021-12-18 16:36:35,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-18 16:36:35,854 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 16.53846153846154) internal successors, (215), 12 states have internal predecessors, (215), 5 states have call successors, (101), 2 states have call predecessors, (101), 5 states have return successors, (102), 6 states have call predecessors, (102), 5 states have call successors, (102) Word has length 510 [2021-12-18 16:36:35,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 16:36:35,889 INFO L225 Difference]: With dead ends: 17686 [2021-12-18 16:36:35,889 INFO L226 Difference]: Without dead ends: 8855 [2021-12-18 16:36:35,915 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1020 GetRequests, 1005 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=44, Invalid=196, Unknown=0, NotChecked=0, Total=240 [2021-12-18 16:36:35,916 INFO L933 BasicCegarLoop]: 1702 mSDtfsCounter, 301 mSDsluCounter, 14366 mSDsCounter, 0 mSdLazyCounter, 205 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 473 SdHoareTripleChecker+Valid, 16068 SdHoareTripleChecker+Invalid, 207 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 205 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-18 16:36:35,916 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [473 Valid, 16068 Invalid, 207 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 205 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-18 16:36:35,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8855 states. [2021-12-18 16:36:36,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8855 to 8855. [2021-12-18 16:36:36,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8855 states, 5983 states have (on average 1.1962226307872306) internal successors, (7157), 6196 states have internal predecessors, (7157), 2202 states have call successors, (2202), 643 states have call predecessors, (2202), 662 states have return successors, (2275), 2136 states have call predecessors, (2275), 2198 states have call successors, (2275) [2021-12-18 16:36:36,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8855 states to 8855 states and 11634 transitions. [2021-12-18 16:36:36,564 INFO L78 Accepts]: Start accepts. Automaton has 8855 states and 11634 transitions. Word has length 510 [2021-12-18 16:36:36,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 16:36:36,564 INFO L470 AbstractCegarLoop]: Abstraction has 8855 states and 11634 transitions. [2021-12-18 16:36:36,564 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 16.53846153846154) internal successors, (215), 12 states have internal predecessors, (215), 5 states have call successors, (101), 2 states have call predecessors, (101), 5 states have return successors, (102), 6 states have call predecessors, (102), 5 states have call successors, (102) [2021-12-18 16:36:36,564 INFO L276 IsEmpty]: Start isEmpty. Operand 8855 states and 11634 transitions. [2021-12-18 16:36:36,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 494 [2021-12-18 16:36:36,568 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 16:36:36,568 INFO L514 BasicCegarLoop]: trace histogram [18, 18, 18, 9, 9, 7, 7, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-12-18 16:36:36,599 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2021-12-18 16:36:36,769 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable47 [2021-12-18 16:36:36,770 INFO L402 AbstractCegarLoop]: === Iteration 49 === 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 31 more)] === [2021-12-18 16:36:36,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 16:36:36,770 INFO L85 PathProgramCache]: Analyzing trace with hash -2065886939, now seen corresponding path program 1 times [2021-12-18 16:36:36,770 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 16:36:36,770 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1328592793] [2021-12-18 16:36:36,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 16:36:36,771 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 16:36:36,905 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-18 16:36:36,906 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [829984588] [2021-12-18 16:36:36,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 16:36:36,906 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-18 16:36:36,906 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-18 16:36:36,907 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-18 16:36:36,908 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2021-12-18 16:36:38,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:36:38,691 INFO L263 TraceCheckSpWp]: Trace formula consists of 3701 conjuncts, 45 conjunts are in the unsatisfiable core [2021-12-18 16:36:38,697 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-18 16:36:39,412 INFO L134 CoverageAnalysis]: Checked inductivity of 1123 backedges. 320 proven. 0 refuted. 0 times theorem prover too weak. 803 trivial. 0 not checked. [2021-12-18 16:36:39,412 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-18 16:36:39,412 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 16:36:39,413 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1328592793] [2021-12-18 16:36:39,413 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-12-18 16:36:39,413 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [829984588] [2021-12-18 16:36:39,413 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [829984588] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 16:36:39,413 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 16:36:39,413 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-12-18 16:36:39,413 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1289846271] [2021-12-18 16:36:39,413 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 16:36:39,414 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-12-18 16:36:39,414 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 16:36:39,415 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-12-18 16:36:39,415 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-12-18 16:36:39,415 INFO L87 Difference]: Start difference. First operand 8855 states and 11634 transitions. Second operand has 10 states, 10 states have (on average 16.4) internal successors, (164), 8 states have internal predecessors, (164), 3 states have call successors, (55), 2 states have call predecessors, (55), 4 states have return successors, (55), 5 states have call predecessors, (55), 3 states have call successors, (55) [2021-12-18 16:36:40,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 16:36:40,379 INFO L93 Difference]: Finished difference Result 19579 states and 26128 transitions. [2021-12-18 16:36:40,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-12-18 16:36:40,384 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 16.4) internal successors, (164), 8 states have internal predecessors, (164), 3 states have call successors, (55), 2 states have call predecessors, (55), 4 states have return successors, (55), 5 states have call predecessors, (55), 3 states have call successors, (55) Word has length 493 [2021-12-18 16:36:40,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 16:36:40,416 INFO L225 Difference]: With dead ends: 19579 [2021-12-18 16:36:40,416 INFO L226 Difference]: Without dead ends: 10812 [2021-12-18 16:36:40,436 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 495 GetRequests, 484 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2021-12-18 16:36:40,436 INFO L933 BasicCegarLoop]: 2202 mSDtfsCounter, 216 mSDsluCounter, 17257 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 353 SdHoareTripleChecker+Valid, 19459 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-18 16:36:40,437 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [353 Valid, 19459 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-18 16:36:40,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10812 states. [2021-12-18 16:36:41,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10812 to 8890. [2021-12-18 16:36:41,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8890 states, 6009 states have (on average 1.1953736062572808) internal successors, (7183), 6221 states have internal predecessors, (7183), 2205 states have call successors, (2205), 643 states have call predecessors, (2205), 668 states have return successors, (2287), 2146 states have call predecessors, (2287), 2201 states have call successors, (2287) [2021-12-18 16:36:41,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8890 states to 8890 states and 11675 transitions. [2021-12-18 16:36:41,223 INFO L78 Accepts]: Start accepts. Automaton has 8890 states and 11675 transitions. Word has length 493 [2021-12-18 16:36:41,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 16:36:41,223 INFO L470 AbstractCegarLoop]: Abstraction has 8890 states and 11675 transitions. [2021-12-18 16:36:41,224 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 16.4) internal successors, (164), 8 states have internal predecessors, (164), 3 states have call successors, (55), 2 states have call predecessors, (55), 4 states have return successors, (55), 5 states have call predecessors, (55), 3 states have call successors, (55) [2021-12-18 16:36:41,224 INFO L276 IsEmpty]: Start isEmpty. Operand 8890 states and 11675 transitions. [2021-12-18 16:36:41,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 515 [2021-12-18 16:36:41,227 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 16:36:41,228 INFO L514 BasicCegarLoop]: trace histogram [20, 20, 20, 10, 10, 7, 7, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 16:36:41,261 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2021-12-18 16:36:41,428 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable48 [2021-12-18 16:36:41,429 INFO L402 AbstractCegarLoop]: === Iteration 50 === 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 31 more)] === [2021-12-18 16:36:41,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 16:36:41,429 INFO L85 PathProgramCache]: Analyzing trace with hash -507987998, now seen corresponding path program 1 times [2021-12-18 16:36:41,429 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 16:36:41,429 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1627412184] [2021-12-18 16:36:41,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 16:36:41,430 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 16:36:41,493 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-18 16:36:41,493 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1977660771] [2021-12-18 16:36:41,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 16:36:41,494 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-18 16:36:41,494 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-18 16:36:41,495 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-18 16:36:41,500 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2021-12-18 16:36:42,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 16:36:42,858 INFO L263 TraceCheckSpWp]: Trace formula consists of 3773 conjuncts, 38 conjunts are in the unsatisfiable core [2021-12-18 16:36:42,864 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-18 16:36:43,669 INFO L134 CoverageAnalysis]: Checked inductivity of 1318 backedges. 194 proven. 0 refuted. 0 times theorem prover too weak. 1124 trivial. 0 not checked. [2021-12-18 16:36:43,669 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-18 16:36:43,669 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 16:36:43,669 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1627412184] [2021-12-18 16:36:43,669 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-12-18 16:36:43,669 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1977660771] [2021-12-18 16:36:43,669 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1977660771] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 16:36:43,669 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 16:36:43,670 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-18 16:36:43,670 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1126157877] [2021-12-18 16:36:43,670 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 16:36:43,670 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-18 16:36:43,670 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 16:36:43,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-18 16:36:43,671 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-18 16:36:43,671 INFO L87 Difference]: Start difference. First operand 8890 states and 11675 transitions. Second operand has 9 states, 9 states have (on average 17.666666666666668) internal successors, (159), 8 states have internal predecessors, (159), 3 states have call successors, (55), 2 states have call predecessors, (55), 3 states have return successors, (54), 4 states have call predecessors, (54), 3 states have call successors, (54) [2021-12-18 16:36:45,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 16:36:45,529 INFO L93 Difference]: Finished difference Result 19666 states and 26285 transitions. [2021-12-18 16:36:45,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-18 16:36:45,530 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 17.666666666666668) internal successors, (159), 8 states have internal predecessors, (159), 3 states have call successors, (55), 2 states have call predecessors, (55), 3 states have return successors, (54), 4 states have call predecessors, (54), 3 states have call successors, (54) Word has length 514 [2021-12-18 16:36:45,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 16:36:45,571 INFO L225 Difference]: With dead ends: 19666 [2021-12-18 16:36:45,571 INFO L226 Difference]: Without dead ends: 10864 [2021-12-18 16:36:45,598 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 517 GetRequests, 506 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2021-12-18 16:36:45,599 INFO L933 BasicCegarLoop]: 2211 mSDtfsCounter, 1057 mSDsluCounter, 13717 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 699 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1057 SdHoareTripleChecker+Valid, 15928 SdHoareTripleChecker+Invalid, 750 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 699 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-12-18 16:36:45,599 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1057 Valid, 15928 Invalid, 750 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [699 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-12-18 16:36:45,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10864 states. [2021-12-18 16:36:46,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10864 to 8942. [2021-12-18 16:36:46,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8942 states, 6041 states have (on average 1.1943386856480716) internal successors, (7215), 6253 states have internal predecessors, (7215), 2221 states have call successors, (2221), 643 states have call predecessors, (2221), 672 states have return successors, (2327), 2166 states have call predecessors, (2327), 2217 states have call successors, (2327) [2021-12-18 16:36:46,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8942 states to 8942 states and 11763 transitions. [2021-12-18 16:36:46,675 INFO L78 Accepts]: Start accepts. Automaton has 8942 states and 11763 transitions. Word has length 514 [2021-12-18 16:36:46,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 16:36:46,675 INFO L470 AbstractCegarLoop]: Abstraction has 8942 states and 11763 transitions. [2021-12-18 16:36:46,676 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 17.666666666666668) internal successors, (159), 8 states have internal predecessors, (159), 3 states have call successors, (55), 2 states have call predecessors, (55), 3 states have return successors, (54), 4 states have call predecessors, (54), 3 states have call successors, (54) [2021-12-18 16:36:46,676 INFO L276 IsEmpty]: Start isEmpty. Operand 8942 states and 11763 transitions. [2021-12-18 16:36:46,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 531 [2021-12-18 16:36:46,684 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 16:36:46,685 INFO L514 BasicCegarLoop]: trace histogram [22, 22, 22, 11, 11, 7, 7, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 16:36:46,722 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2021-12-18 16:36:46,904 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable49 [2021-12-18 16:36:46,905 INFO L402 AbstractCegarLoop]: === Iteration 51 === 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 31 more)] === [2021-12-18 16:36:46,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 16:36:46,906 INFO L85 PathProgramCache]: Analyzing trace with hash 1090430060, now seen corresponding path program 1 times [2021-12-18 16:36:46,906 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 16:36:46,906 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [94307990] [2021-12-18 16:36:46,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 16:36:46,906 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 16:36:46,984 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-18 16:36:46,984 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [178589431] [2021-12-18 16:36:46,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 16:36:46,985 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-18 16:36:46,985 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-18 16:36:46,986 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-18 16:36:46,986 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process Killed by 15