./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--md--raid456.ko.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dcd2a3c-8aab-4309-ac70-28e089da6371/bin/utaipan-eEHZpOm5b7/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dcd2a3c-8aab-4309-ac70-28e089da6371/bin/utaipan-eEHZpOm5b7/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dcd2a3c-8aab-4309-ac70-28e089da6371/bin/utaipan-eEHZpOm5b7/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dcd2a3c-8aab-4309-ac70-28e089da6371/bin/utaipan-eEHZpOm5b7/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dcd2a3c-8aab-4309-ac70-28e089da6371/bin/utaipan-eEHZpOm5b7/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dcd2a3c-8aab-4309-ac70-28e089da6371/bin/utaipan-eEHZpOm5b7 --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 Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 44a365b0a9ab0c087a7fd95686a95a7a3d5f7a279cab683ec4e216584d2b370f --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-11-25 20:01:28,201 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-25 20:01:28,205 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-25 20:01:28,272 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-25 20:01:28,273 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-25 20:01:28,279 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-25 20:01:28,281 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-25 20:01:28,286 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-25 20:01:28,289 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-25 20:01:28,296 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-25 20:01:28,298 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-25 20:01:28,300 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-25 20:01:28,301 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-25 20:01:28,304 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-25 20:01:28,306 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-25 20:01:28,312 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-25 20:01:28,316 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-25 20:01:28,317 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-25 20:01:28,320 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-25 20:01:28,330 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-25 20:01:28,332 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-25 20:01:28,334 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-25 20:01:28,338 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-25 20:01:28,339 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-25 20:01:28,346 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-25 20:01:28,347 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-25 20:01:28,347 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-25 20:01:28,348 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-25 20:01:28,349 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-25 20:01:28,350 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-25 20:01:28,351 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-25 20:01:28,352 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-25 20:01:28,353 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-25 20:01:28,357 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-25 20:01:28,359 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-25 20:01:28,360 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-25 20:01:28,361 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-25 20:01:28,361 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-25 20:01:28,362 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-25 20:01:28,363 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-25 20:01:28,364 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-25 20:01:28,365 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dcd2a3c-8aab-4309-ac70-28e089da6371/bin/utaipan-eEHZpOm5b7/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-25 20:01:28,419 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-25 20:01:28,419 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-25 20:01:28,427 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-25 20:01:28,428 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-25 20:01:28,429 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-25 20:01:28,429 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-25 20:01:28,430 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-25 20:01:28,430 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-25 20:01:28,430 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-25 20:01:28,431 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-25 20:01:28,432 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-25 20:01:28,432 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-25 20:01:28,433 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-25 20:01:28,433 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-25 20:01:28,433 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-25 20:01:28,434 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-25 20:01:28,434 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-25 20:01:28,434 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-25 20:01:28,436 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-25 20:01:28,436 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-25 20:01:28,437 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-25 20:01:28,437 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-25 20:01:28,437 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-25 20:01:28,437 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-25 20:01:28,438 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-25 20:01:28,438 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-25 20:01:28,438 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-25 20:01:28,439 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-25 20:01:28,439 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-25 20:01:28,439 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 20:01:28,440 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-25 20:01:28,440 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-25 20:01:28,441 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-25 20:01:28,441 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-25 20:01:28,441 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-25 20:01:28,442 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-25 20:01:28,442 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-25 20:01:28,442 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-25 20:01:28,442 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dcd2a3c-8aab-4309-ac70-28e089da6371/bin/utaipan-eEHZpOm5b7/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dcd2a3c-8aab-4309-ac70-28e089da6371/bin/utaipan-eEHZpOm5b7 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 44a365b0a9ab0c087a7fd95686a95a7a3d5f7a279cab683ec4e216584d2b370f [2021-11-25 20:01:28,830 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-25 20:01:28,875 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-25 20:01:28,878 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-25 20:01:28,880 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-25 20:01:28,880 INFO L275 PluginConnector]: CDTParser initialized [2021-11-25 20:01:28,882 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dcd2a3c-8aab-4309-ac70-28e089da6371/bin/utaipan-eEHZpOm5b7/../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i [2021-11-25 20:01:28,984 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dcd2a3c-8aab-4309-ac70-28e089da6371/bin/utaipan-eEHZpOm5b7/data/387f64b30/4d9322b9c0a14f4184b2ea75ab0e4051/FLAG605b3a59e [2021-11-25 20:01:30,478 INFO L306 CDTParser]: Found 1 translation units. [2021-11-25 20:01:30,479 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dcd2a3c-8aab-4309-ac70-28e089da6371/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i [2021-11-25 20:01:30,589 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dcd2a3c-8aab-4309-ac70-28e089da6371/bin/utaipan-eEHZpOm5b7/data/387f64b30/4d9322b9c0a14f4184b2ea75ab0e4051/FLAG605b3a59e [2021-11-25 20:01:30,981 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dcd2a3c-8aab-4309-ac70-28e089da6371/bin/utaipan-eEHZpOm5b7/data/387f64b30/4d9322b9c0a14f4184b2ea75ab0e4051 [2021-11-25 20:01:30,993 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-25 20:01:30,995 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-25 20:01:30,997 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-25 20:01:30,997 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-25 20:01:31,003 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-25 20:01:31,004 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:01:30" (1/1) ... [2021-11-25 20:01:31,005 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c21b559 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:01:31, skipping insertion in model container [2021-11-25 20:01:31,006 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:01:30" (1/1) ... [2021-11-25 20:01:31,015 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-25 20:01:31,333 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-25 20:01:42,845 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dcd2a3c-8aab-4309-ac70-28e089da6371/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[773190,773203] [2021-11-25 20:01:42,848 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dcd2a3c-8aab-4309-ac70-28e089da6371/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[773335,773348] [2021-11-25 20:01:42,849 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dcd2a3c-8aab-4309-ac70-28e089da6371/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[773481,773494] [2021-11-25 20:01:42,849 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dcd2a3c-8aab-4309-ac70-28e089da6371/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[773646,773659] [2021-11-25 20:01:42,850 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dcd2a3c-8aab-4309-ac70-28e089da6371/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[773804,773817] [2021-11-25 20:01:42,850 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dcd2a3c-8aab-4309-ac70-28e089da6371/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[773962,773975] [2021-11-25 20:01:42,851 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dcd2a3c-8aab-4309-ac70-28e089da6371/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[774120,774133] [2021-11-25 20:01:42,851 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dcd2a3c-8aab-4309-ac70-28e089da6371/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[774280,774293] [2021-11-25 20:01:42,852 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dcd2a3c-8aab-4309-ac70-28e089da6371/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[774439,774452] [2021-11-25 20:01:42,852 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dcd2a3c-8aab-4309-ac70-28e089da6371/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[774578,774591] [2021-11-25 20:01:42,853 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dcd2a3c-8aab-4309-ac70-28e089da6371/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[774720,774733] [2021-11-25 20:01:42,854 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dcd2a3c-8aab-4309-ac70-28e089da6371/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[774869,774882] [2021-11-25 20:01:42,854 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dcd2a3c-8aab-4309-ac70-28e089da6371/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[775008,775021] [2021-11-25 20:01:42,855 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dcd2a3c-8aab-4309-ac70-28e089da6371/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[775163,775176] [2021-11-25 20:01:42,855 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dcd2a3c-8aab-4309-ac70-28e089da6371/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[775323,775336] [2021-11-25 20:01:42,856 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dcd2a3c-8aab-4309-ac70-28e089da6371/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[775474,775487] [2021-11-25 20:01:42,857 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dcd2a3c-8aab-4309-ac70-28e089da6371/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[775625,775638] [2021-11-25 20:01:42,857 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dcd2a3c-8aab-4309-ac70-28e089da6371/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[775777,775790] [2021-11-25 20:01:42,858 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dcd2a3c-8aab-4309-ac70-28e089da6371/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[775926,775939] [2021-11-25 20:01:42,858 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dcd2a3c-8aab-4309-ac70-28e089da6371/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[776074,776087] [2021-11-25 20:01:42,859 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dcd2a3c-8aab-4309-ac70-28e089da6371/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[776231,776244] [2021-11-25 20:01:42,860 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dcd2a3c-8aab-4309-ac70-28e089da6371/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[776380,776393] [2021-11-25 20:01:42,860 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dcd2a3c-8aab-4309-ac70-28e089da6371/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[776536,776549] [2021-11-25 20:01:42,861 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dcd2a3c-8aab-4309-ac70-28e089da6371/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[776689,776702] [2021-11-25 20:01:42,861 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dcd2a3c-8aab-4309-ac70-28e089da6371/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[776835,776848] [2021-11-25 20:01:42,862 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dcd2a3c-8aab-4309-ac70-28e089da6371/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[776978,776991] [2021-11-25 20:01:42,863 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dcd2a3c-8aab-4309-ac70-28e089da6371/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[777130,777143] [2021-11-25 20:01:42,863 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dcd2a3c-8aab-4309-ac70-28e089da6371/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[777276,777289] [2021-11-25 20:01:42,864 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dcd2a3c-8aab-4309-ac70-28e089da6371/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[777421,777434] [2021-11-25 20:01:42,864 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dcd2a3c-8aab-4309-ac70-28e089da6371/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[777575,777588] [2021-11-25 20:01:42,865 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dcd2a3c-8aab-4309-ac70-28e089da6371/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[777726,777739] [2021-11-25 20:01:42,865 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dcd2a3c-8aab-4309-ac70-28e089da6371/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[777881,777894] [2021-11-25 20:01:42,866 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dcd2a3c-8aab-4309-ac70-28e089da6371/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[778033,778046] [2021-11-25 20:01:42,867 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dcd2a3c-8aab-4309-ac70-28e089da6371/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[778188,778201] [2021-11-25 20:01:42,867 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dcd2a3c-8aab-4309-ac70-28e089da6371/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[778352,778365] [2021-11-25 20:01:42,868 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dcd2a3c-8aab-4309-ac70-28e089da6371/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[778508,778521] [2021-11-25 20:01:42,868 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dcd2a3c-8aab-4309-ac70-28e089da6371/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[778672,778685] [2021-11-25 20:01:42,869 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dcd2a3c-8aab-4309-ac70-28e089da6371/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[778814,778827] [2021-11-25 20:01:42,869 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dcd2a3c-8aab-4309-ac70-28e089da6371/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[778972,778985] [2021-11-25 20:01:42,870 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dcd2a3c-8aab-4309-ac70-28e089da6371/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[779139,779152] [2021-11-25 20:01:42,871 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dcd2a3c-8aab-4309-ac70-28e089da6371/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[779298,779311] [2021-11-25 20:01:42,871 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dcd2a3c-8aab-4309-ac70-28e089da6371/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[779457,779470] [2021-11-25 20:01:42,872 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dcd2a3c-8aab-4309-ac70-28e089da6371/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[779606,779619] [2021-11-25 20:01:42,872 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dcd2a3c-8aab-4309-ac70-28e089da6371/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[779753,779766] [2021-11-25 20:01:42,873 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dcd2a3c-8aab-4309-ac70-28e089da6371/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[779892,779905] [2021-11-25 20:01:42,873 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dcd2a3c-8aab-4309-ac70-28e089da6371/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[780055,780068] [2021-11-25 20:01:42,874 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dcd2a3c-8aab-4309-ac70-28e089da6371/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[780221,780234] [2021-11-25 20:01:42,875 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dcd2a3c-8aab-4309-ac70-28e089da6371/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[780385,780398] [2021-11-25 20:01:42,875 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dcd2a3c-8aab-4309-ac70-28e089da6371/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[780550,780563] [2021-11-25 20:01:42,876 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dcd2a3c-8aab-4309-ac70-28e089da6371/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[780715,780728] [2021-11-25 20:01:42,876 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dcd2a3c-8aab-4309-ac70-28e089da6371/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[780881,780894] [2021-11-25 20:01:42,877 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dcd2a3c-8aab-4309-ac70-28e089da6371/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[781046,781059] [2021-11-25 20:01:42,877 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dcd2a3c-8aab-4309-ac70-28e089da6371/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[781213,781226] [2021-11-25 20:01:42,878 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dcd2a3c-8aab-4309-ac70-28e089da6371/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[781373,781386] [2021-11-25 20:01:42,879 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dcd2a3c-8aab-4309-ac70-28e089da6371/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[781535,781548] [2021-11-25 20:01:42,879 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dcd2a3c-8aab-4309-ac70-28e089da6371/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[781694,781707] [2021-11-25 20:01:42,880 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dcd2a3c-8aab-4309-ac70-28e089da6371/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[781840,781853] [2021-11-25 20:01:42,880 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dcd2a3c-8aab-4309-ac70-28e089da6371/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[781983,781996] [2021-11-25 20:01:42,881 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dcd2a3c-8aab-4309-ac70-28e089da6371/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[782127,782140] [2021-11-25 20:01:42,881 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dcd2a3c-8aab-4309-ac70-28e089da6371/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[782270,782283] [2021-11-25 20:01:42,882 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dcd2a3c-8aab-4309-ac70-28e089da6371/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[782414,782427] [2021-11-25 20:01:42,883 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dcd2a3c-8aab-4309-ac70-28e089da6371/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[782555,782568] [2021-11-25 20:01:42,883 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dcd2a3c-8aab-4309-ac70-28e089da6371/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[782693,782706] [2021-11-25 20:01:42,884 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dcd2a3c-8aab-4309-ac70-28e089da6371/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[782851,782864] [2021-11-25 20:01:42,884 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dcd2a3c-8aab-4309-ac70-28e089da6371/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[783010,783023] [2021-11-25 20:01:42,885 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dcd2a3c-8aab-4309-ac70-28e089da6371/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[783166,783179] [2021-11-25 20:01:42,885 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dcd2a3c-8aab-4309-ac70-28e089da6371/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[783315,783328] [2021-11-25 20:01:42,886 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dcd2a3c-8aab-4309-ac70-28e089da6371/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[783467,783480] [2021-11-25 20:01:42,886 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dcd2a3c-8aab-4309-ac70-28e089da6371/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[783618,783631] [2021-11-25 20:01:42,887 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dcd2a3c-8aab-4309-ac70-28e089da6371/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[783767,783780] [2021-11-25 20:01:42,888 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dcd2a3c-8aab-4309-ac70-28e089da6371/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[783919,783932] [2021-11-25 20:01:42,888 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dcd2a3c-8aab-4309-ac70-28e089da6371/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[784067,784080] [2021-11-25 20:01:42,889 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dcd2a3c-8aab-4309-ac70-28e089da6371/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[784220,784233] [2021-11-25 20:01:42,889 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dcd2a3c-8aab-4309-ac70-28e089da6371/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[784371,784384] [2021-11-25 20:01:42,890 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dcd2a3c-8aab-4309-ac70-28e089da6371/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[784521,784534] [2021-11-25 20:01:42,890 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dcd2a3c-8aab-4309-ac70-28e089da6371/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[784668,784681] [2021-11-25 20:01:42,891 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dcd2a3c-8aab-4309-ac70-28e089da6371/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[784819,784832] [2021-11-25 20:01:42,891 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dcd2a3c-8aab-4309-ac70-28e089da6371/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[784970,784983] [2021-11-25 20:01:42,892 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dcd2a3c-8aab-4309-ac70-28e089da6371/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[785118,785131] [2021-11-25 20:01:42,892 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dcd2a3c-8aab-4309-ac70-28e089da6371/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[785284,785297] [2021-11-25 20:01:42,893 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dcd2a3c-8aab-4309-ac70-28e089da6371/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[785453,785466] [2021-11-25 20:01:42,893 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dcd2a3c-8aab-4309-ac70-28e089da6371/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[785620,785633] [2021-11-25 20:01:42,894 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dcd2a3c-8aab-4309-ac70-28e089da6371/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[785788,785801] [2021-11-25 20:01:42,895 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dcd2a3c-8aab-4309-ac70-28e089da6371/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[785938,785951] [2021-11-25 20:01:42,895 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dcd2a3c-8aab-4309-ac70-28e089da6371/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[786085,786098] [2021-11-25 20:01:42,896 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dcd2a3c-8aab-4309-ac70-28e089da6371/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[786246,786259] [2021-11-25 20:01:42,896 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dcd2a3c-8aab-4309-ac70-28e089da6371/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[786416,786429] [2021-11-25 20:01:42,897 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dcd2a3c-8aab-4309-ac70-28e089da6371/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[786578,786591] [2021-11-25 20:01:42,929 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 20:01:42,956 INFO L203 MainTranslator]: Completed pre-run [2021-11-25 20:01:44,021 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dcd2a3c-8aab-4309-ac70-28e089da6371/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[773190,773203] [2021-11-25 20:01:44,027 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dcd2a3c-8aab-4309-ac70-28e089da6371/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[773335,773348] [2021-11-25 20:01:44,028 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dcd2a3c-8aab-4309-ac70-28e089da6371/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[773481,773494] [2021-11-25 20:01:44,028 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dcd2a3c-8aab-4309-ac70-28e089da6371/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[773646,773659] [2021-11-25 20:01:44,029 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dcd2a3c-8aab-4309-ac70-28e089da6371/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[773804,773817] [2021-11-25 20:01:44,029 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dcd2a3c-8aab-4309-ac70-28e089da6371/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[773962,773975] [2021-11-25 20:01:44,030 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dcd2a3c-8aab-4309-ac70-28e089da6371/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[774120,774133] [2021-11-25 20:01:44,030 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dcd2a3c-8aab-4309-ac70-28e089da6371/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[774280,774293] [2021-11-25 20:01:44,030 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dcd2a3c-8aab-4309-ac70-28e089da6371/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[774439,774452] [2021-11-25 20:01:44,031 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dcd2a3c-8aab-4309-ac70-28e089da6371/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[774578,774591] [2021-11-25 20:01:44,033 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dcd2a3c-8aab-4309-ac70-28e089da6371/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[774720,774733] [2021-11-25 20:01:44,033 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dcd2a3c-8aab-4309-ac70-28e089da6371/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[774869,774882] [2021-11-25 20:01:44,034 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dcd2a3c-8aab-4309-ac70-28e089da6371/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[775008,775021] [2021-11-25 20:01:44,034 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dcd2a3c-8aab-4309-ac70-28e089da6371/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[775163,775176] [2021-11-25 20:01:44,035 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dcd2a3c-8aab-4309-ac70-28e089da6371/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[775323,775336] [2021-11-25 20:01:44,035 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dcd2a3c-8aab-4309-ac70-28e089da6371/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[775474,775487] [2021-11-25 20:01:44,036 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dcd2a3c-8aab-4309-ac70-28e089da6371/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[775625,775638] [2021-11-25 20:01:44,085 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dcd2a3c-8aab-4309-ac70-28e089da6371/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[775777,775790] [2021-11-25 20:01:44,086 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dcd2a3c-8aab-4309-ac70-28e089da6371/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[775926,775939] [2021-11-25 20:01:44,086 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dcd2a3c-8aab-4309-ac70-28e089da6371/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[776074,776087] [2021-11-25 20:01:44,086 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dcd2a3c-8aab-4309-ac70-28e089da6371/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[776231,776244] [2021-11-25 20:01:44,087 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dcd2a3c-8aab-4309-ac70-28e089da6371/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[776380,776393] [2021-11-25 20:01:44,087 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dcd2a3c-8aab-4309-ac70-28e089da6371/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[776536,776549] [2021-11-25 20:01:44,088 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dcd2a3c-8aab-4309-ac70-28e089da6371/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[776689,776702] [2021-11-25 20:01:44,088 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dcd2a3c-8aab-4309-ac70-28e089da6371/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[776835,776848] [2021-11-25 20:01:44,088 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dcd2a3c-8aab-4309-ac70-28e089da6371/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[776978,776991] [2021-11-25 20:01:44,089 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dcd2a3c-8aab-4309-ac70-28e089da6371/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[777130,777143] [2021-11-25 20:01:44,089 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dcd2a3c-8aab-4309-ac70-28e089da6371/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[777276,777289] [2021-11-25 20:01:44,090 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dcd2a3c-8aab-4309-ac70-28e089da6371/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[777421,777434] [2021-11-25 20:01:44,090 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dcd2a3c-8aab-4309-ac70-28e089da6371/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[777575,777588] [2021-11-25 20:01:44,090 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dcd2a3c-8aab-4309-ac70-28e089da6371/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[777726,777739] [2021-11-25 20:01:44,091 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dcd2a3c-8aab-4309-ac70-28e089da6371/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[777881,777894] [2021-11-25 20:01:44,091 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dcd2a3c-8aab-4309-ac70-28e089da6371/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[778033,778046] [2021-11-25 20:01:44,092 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dcd2a3c-8aab-4309-ac70-28e089da6371/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[778188,778201] [2021-11-25 20:01:44,092 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dcd2a3c-8aab-4309-ac70-28e089da6371/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[778352,778365] [2021-11-25 20:01:44,092 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dcd2a3c-8aab-4309-ac70-28e089da6371/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[778508,778521] [2021-11-25 20:01:44,093 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dcd2a3c-8aab-4309-ac70-28e089da6371/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[778672,778685] [2021-11-25 20:01:44,093 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dcd2a3c-8aab-4309-ac70-28e089da6371/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[778814,778827] [2021-11-25 20:01:44,094 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dcd2a3c-8aab-4309-ac70-28e089da6371/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[778972,778985] [2021-11-25 20:01:44,094 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dcd2a3c-8aab-4309-ac70-28e089da6371/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[779139,779152] [2021-11-25 20:01:44,094 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dcd2a3c-8aab-4309-ac70-28e089da6371/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[779298,779311] [2021-11-25 20:01:44,095 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dcd2a3c-8aab-4309-ac70-28e089da6371/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[779457,779470] [2021-11-25 20:01:44,095 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dcd2a3c-8aab-4309-ac70-28e089da6371/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[779606,779619] [2021-11-25 20:01:44,096 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dcd2a3c-8aab-4309-ac70-28e089da6371/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[779753,779766] [2021-11-25 20:01:44,096 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dcd2a3c-8aab-4309-ac70-28e089da6371/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[779892,779905] [2021-11-25 20:01:44,096 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dcd2a3c-8aab-4309-ac70-28e089da6371/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[780055,780068] [2021-11-25 20:01:44,099 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dcd2a3c-8aab-4309-ac70-28e089da6371/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[780221,780234] [2021-11-25 20:01:44,100 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dcd2a3c-8aab-4309-ac70-28e089da6371/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[780385,780398] [2021-11-25 20:01:44,102 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dcd2a3c-8aab-4309-ac70-28e089da6371/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[780550,780563] [2021-11-25 20:01:44,103 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dcd2a3c-8aab-4309-ac70-28e089da6371/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[780715,780728] [2021-11-25 20:01:44,103 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dcd2a3c-8aab-4309-ac70-28e089da6371/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[780881,780894] [2021-11-25 20:01:44,103 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dcd2a3c-8aab-4309-ac70-28e089da6371/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[781046,781059] [2021-11-25 20:01:44,104 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dcd2a3c-8aab-4309-ac70-28e089da6371/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[781213,781226] [2021-11-25 20:01:44,105 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dcd2a3c-8aab-4309-ac70-28e089da6371/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[781373,781386] [2021-11-25 20:01:44,107 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dcd2a3c-8aab-4309-ac70-28e089da6371/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[781535,781548] [2021-11-25 20:01:44,108 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dcd2a3c-8aab-4309-ac70-28e089da6371/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[781694,781707] [2021-11-25 20:01:44,113 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dcd2a3c-8aab-4309-ac70-28e089da6371/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[781840,781853] [2021-11-25 20:01:44,113 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dcd2a3c-8aab-4309-ac70-28e089da6371/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[781983,781996] [2021-11-25 20:01:44,114 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dcd2a3c-8aab-4309-ac70-28e089da6371/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[782127,782140] [2021-11-25 20:01:44,115 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dcd2a3c-8aab-4309-ac70-28e089da6371/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[782270,782283] [2021-11-25 20:01:44,116 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dcd2a3c-8aab-4309-ac70-28e089da6371/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[782414,782427] [2021-11-25 20:01:44,118 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dcd2a3c-8aab-4309-ac70-28e089da6371/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[782555,782568] [2021-11-25 20:01:44,118 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dcd2a3c-8aab-4309-ac70-28e089da6371/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[782693,782706] [2021-11-25 20:01:44,119 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dcd2a3c-8aab-4309-ac70-28e089da6371/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[782851,782864] [2021-11-25 20:01:44,125 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dcd2a3c-8aab-4309-ac70-28e089da6371/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[783010,783023] [2021-11-25 20:01:44,131 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dcd2a3c-8aab-4309-ac70-28e089da6371/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[783166,783179] [2021-11-25 20:01:44,132 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dcd2a3c-8aab-4309-ac70-28e089da6371/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[783315,783328] [2021-11-25 20:01:44,133 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dcd2a3c-8aab-4309-ac70-28e089da6371/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[783467,783480] [2021-11-25 20:01:44,133 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dcd2a3c-8aab-4309-ac70-28e089da6371/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[783618,783631] [2021-11-25 20:01:44,134 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dcd2a3c-8aab-4309-ac70-28e089da6371/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[783767,783780] [2021-11-25 20:01:44,134 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dcd2a3c-8aab-4309-ac70-28e089da6371/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[783919,783932] [2021-11-25 20:01:44,134 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dcd2a3c-8aab-4309-ac70-28e089da6371/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[784067,784080] [2021-11-25 20:01:44,135 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dcd2a3c-8aab-4309-ac70-28e089da6371/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[784220,784233] [2021-11-25 20:01:44,135 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dcd2a3c-8aab-4309-ac70-28e089da6371/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[784371,784384] [2021-11-25 20:01:44,136 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dcd2a3c-8aab-4309-ac70-28e089da6371/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[784521,784534] [2021-11-25 20:01:44,136 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dcd2a3c-8aab-4309-ac70-28e089da6371/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[784668,784681] [2021-11-25 20:01:44,137 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dcd2a3c-8aab-4309-ac70-28e089da6371/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[784819,784832] [2021-11-25 20:01:44,137 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dcd2a3c-8aab-4309-ac70-28e089da6371/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[784970,784983] [2021-11-25 20:01:44,139 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dcd2a3c-8aab-4309-ac70-28e089da6371/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[785118,785131] [2021-11-25 20:01:44,140 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dcd2a3c-8aab-4309-ac70-28e089da6371/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[785284,785297] [2021-11-25 20:01:44,140 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dcd2a3c-8aab-4309-ac70-28e089da6371/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[785453,785466] [2021-11-25 20:01:44,141 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dcd2a3c-8aab-4309-ac70-28e089da6371/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[785620,785633] [2021-11-25 20:01:44,142 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dcd2a3c-8aab-4309-ac70-28e089da6371/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[785788,785801] [2021-11-25 20:01:44,142 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dcd2a3c-8aab-4309-ac70-28e089da6371/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[785938,785951] [2021-11-25 20:01:44,143 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dcd2a3c-8aab-4309-ac70-28e089da6371/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[786085,786098] [2021-11-25 20:01:44,143 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dcd2a3c-8aab-4309-ac70-28e089da6371/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[786246,786259] [2021-11-25 20:01:44,144 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dcd2a3c-8aab-4309-ac70-28e089da6371/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[786416,786429] [2021-11-25 20:01:44,144 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dcd2a3c-8aab-4309-ac70-28e089da6371/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[786578,786591] [2021-11-25 20:01:44,153 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 20:01:44,658 INFO L208 MainTranslator]: Completed translation [2021-11-25 20:01:44,658 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:01:44 WrapperNode [2021-11-25 20:01:44,659 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-25 20:01:44,660 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-25 20:01:44,660 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-25 20:01:44,660 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-25 20:01:44,669 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:01:44" (1/1) ... [2021-11-25 20:01:44,999 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:01:44" (1/1) ... [2021-11-25 20:01:45,408 INFO L137 Inliner]: procedures = 931, calls = 6987, calls flagged for inlining = 417, calls inlined = 280, statements flattened = 10912 [2021-11-25 20:01:45,409 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-25 20:01:45,410 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-25 20:01:45,410 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-25 20:01:45,410 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-25 20:01:45,421 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:01:44" (1/1) ... [2021-11-25 20:01:45,422 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:01:44" (1/1) ... [2021-11-25 20:01:45,587 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:01:44" (1/1) ... [2021-11-25 20:01:45,588 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:01:44" (1/1) ... [2021-11-25 20:01:45,834 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:01:44" (1/1) ... [2021-11-25 20:01:45,886 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:01:44" (1/1) ... [2021-11-25 20:01:45,970 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:01:44" (1/1) ... [2021-11-25 20:01:46,065 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-25 20:01:46,066 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-25 20:01:46,067 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-25 20:01:46,067 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-25 20:01:46,068 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:01:44" (1/1) ... [2021-11-25 20:01:46,078 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 20:01:46,092 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dcd2a3c-8aab-4309-ac70-28e089da6371/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 20:01:46,107 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dcd2a3c-8aab-4309-ac70-28e089da6371/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-25 20:01:46,125 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dcd2a3c-8aab-4309-ac70-28e089da6371/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-25 20:01:46,167 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int_nonpositive [2021-11-25 20:01:46,168 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int_nonpositive [2021-11-25 20:01:46,168 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_thread_groups [2021-11-25 20:01:46,169 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_thread_groups [2021-11-25 20:01:46,169 INFO L130 BoogieDeclarations]: Found specification of procedure bio_endio [2021-11-25 20:01:46,169 INFO L138 BoogieDeclarations]: Found implementation of procedure bio_endio [2021-11-25 20:01:46,170 INFO L130 BoogieDeclarations]: Found specification of procedure kmem_cache_create [2021-11-25 20:01:46,170 INFO L138 BoogieDeclarations]: Found implementation of procedure kmem_cache_create [2021-11-25 20:01:46,170 INFO L130 BoogieDeclarations]: Found specification of procedure sync_request [2021-11-25 20:01:46,170 INFO L138 BoogieDeclarations]: Found implementation of procedure sync_request [2021-11-25 20:01:46,170 INFO L130 BoogieDeclarations]: Found specification of procedure get_active_stripe [2021-11-25 20:01:46,172 INFO L138 BoogieDeclarations]: Found implementation of procedure get_active_stripe [2021-11-25 20:01:46,173 INFO L130 BoogieDeclarations]: Found specification of procedure variable_test_bit [2021-11-25 20:01:46,173 INFO L138 BoogieDeclarations]: Found implementation of procedure variable_test_bit [2021-11-25 20:01:46,173 INFO L130 BoogieDeclarations]: Found specification of procedure raid5_remove_disk [2021-11-25 20:01:46,173 INFO L138 BoogieDeclarations]: Found implementation of procedure raid5_remove_disk [2021-11-25 20:01:46,173 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_mmc_sdio_func_check_final_state [2021-11-25 20:01:46,174 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_mmc_sdio_func_check_final_state [2021-11-25 20:01:46,174 INFO L130 BoogieDeclarations]: Found specification of procedure __might_sleep [2021-11-25 20:01:46,174 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_sleep [2021-11-25 20:01:46,174 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-11-25 20:01:46,174 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-11-25 20:01:46,175 INFO L130 BoogieDeclarations]: Found specification of procedure bdevname [2021-11-25 20:01:46,175 INFO L138 BoogieDeclarations]: Found implementation of procedure bdevname [2021-11-25 20:01:46,175 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_irq_restore [2021-11-25 20:01:46,175 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_irq_restore [2021-11-25 20:01:46,175 INFO L130 BoogieDeclarations]: Found specification of procedure __clear_bit [2021-11-25 20:01:46,175 INFO L138 BoogieDeclarations]: Found implementation of procedure __clear_bit [2021-11-25 20:01:46,176 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2021-11-25 20:01:46,176 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2021-11-25 20:01:46,176 INFO L130 BoogieDeclarations]: Found specification of procedure __preempt_count_sub [2021-11-25 20:01:46,176 INFO L138 BoogieDeclarations]: Found implementation of procedure __preempt_count_sub [2021-11-25 20:01:46,176 INFO L130 BoogieDeclarations]: Found specification of procedure arch_irqs_disabled_flags [2021-11-25 20:01:46,177 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_irqs_disabled_flags [2021-11-25 20:01:46,177 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-11-25 20:01:46,177 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-11-25 20:01:46,177 INFO L130 BoogieDeclarations]: Found specification of procedure read_seqcount_begin [2021-11-25 20:01:46,178 INFO L138 BoogieDeclarations]: Found implementation of procedure read_seqcount_begin [2021-11-25 20:01:46,178 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_102 [2021-11-25 20:01:46,178 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_102 [2021-11-25 20:01:46,178 INFO L130 BoogieDeclarations]: Found specification of procedure __cpu_to_node [2021-11-25 20:01:46,178 INFO L138 BoogieDeclarations]: Found implementation of procedure __cpu_to_node [2021-11-25 20:01:46,178 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2021-11-25 20:01:46,179 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2021-11-25 20:01:46,180 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_request_check_final_state [2021-11-25 20:01:46,180 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_request_check_final_state [2021-11-25 20:01:46,180 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2021-11-25 20:01:46,181 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2021-11-25 20:01:46,181 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_md_personality [2021-11-25 20:01:46,182 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_md_personality [2021-11-25 20:01:46,182 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-11-25 20:01:46,182 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-11-25 20:01:46,182 INFO L130 BoogieDeclarations]: Found specification of procedure lock_device_hash_lock [2021-11-25 20:01:46,183 INFO L138 BoogieDeclarations]: Found implementation of procedure lock_device_hash_lock [2021-11-25 20:01:46,183 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_bh_check_final_state [2021-11-25 20:01:46,183 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_bh_check_final_state [2021-11-25 20:01:46,183 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-25 20:01:46,183 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_genhd_check_final_state [2021-11-25 20:01:46,183 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_genhd_check_final_state [2021-11-25 20:01:46,184 INFO L130 BoogieDeclarations]: Found specification of procedure stripe_operations_active [2021-11-25 20:01:46,184 INFO L138 BoogieDeclarations]: Found implementation of procedure stripe_operations_active [2021-11-25 20:01:46,184 INFO L130 BoogieDeclarations]: Found specification of procedure free_scratch_buffer [2021-11-25 20:01:46,184 INFO L138 BoogieDeclarations]: Found implementation of procedure free_scratch_buffer [2021-11-25 20:01:46,184 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irq_122 [2021-11-25 20:01:46,186 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irq_122 [2021-11-25 20:01:46,190 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-11-25 20:01:46,190 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-11-25 20:01:46,190 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_to_wait_event [2021-11-25 20:01:46,191 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_to_wait_event [2021-11-25 20:01:46,191 INFO L130 BoogieDeclarations]: Found specification of procedure raid5_congested [2021-11-25 20:01:46,191 INFO L138 BoogieDeclarations]: Found implementation of procedure raid5_congested [2021-11-25 20:01:46,191 INFO L130 BoogieDeclarations]: Found specification of procedure put_online_cpus [2021-11-25 20:01:46,191 INFO L138 BoogieDeclarations]: Found implementation of procedure put_online_cpus [2021-11-25 20:01:46,192 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irq_137 [2021-11-25 20:01:46,192 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irq_137 [2021-11-25 20:01:46,195 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_srcu_check_final_state [2021-11-25 20:01:46,195 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_srcu_check_final_state [2021-11-25 20:01:46,196 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock [2021-11-25 20:01:46,196 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock [2021-11-25 20:01:46,196 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-25 20:01:46,196 INFO L130 BoogieDeclarations]: Found specification of procedure revalidate_disk [2021-11-25 20:01:46,196 INFO L138 BoogieDeclarations]: Found implementation of procedure revalidate_disk [2021-11-25 20:01:46,196 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2021-11-25 20:01:46,197 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2021-11-25 20:01:46,197 INFO L130 BoogieDeclarations]: Found specification of procedure stripe_set_idx [2021-11-25 20:01:46,197 INFO L138 BoogieDeclarations]: Found implementation of procedure stripe_set_idx [2021-11-25 20:01:46,197 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-25 20:01:46,197 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-11-25 20:01:46,197 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-11-25 20:01:46,198 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-25 20:01:46,198 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-25 20:01:46,198 INFO L130 BoogieDeclarations]: Found specification of procedure compute_blocknr [2021-11-25 20:01:46,198 INFO L138 BoogieDeclarations]: Found implementation of procedure compute_blocknr [2021-11-25 20:01:46,198 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2021-11-25 20:01:46,198 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2021-11-25 20:01:46,199 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_spinlock_spin_unlock_device_lock_of_r5conf [2021-11-25 20:01:46,199 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_spinlock_spin_unlock_device_lock_of_r5conf [2021-11-25 20:01:46,199 INFO L130 BoogieDeclarations]: Found specification of procedure raid5_wakeup_stripe_thread [2021-11-25 20:01:46,199 INFO L138 BoogieDeclarations]: Found implementation of procedure raid5_wakeup_stripe_thread [2021-11-25 20:01:46,199 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock_sched_notrace [2021-11-25 20:01:46,199 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock_sched_notrace [2021-11-25 20:01:46,200 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_md_register_thread [2021-11-25 20:01:46,200 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_md_register_thread [2021-11-25 20:01:46,200 INFO L130 BoogieDeclarations]: Found specification of procedure kmem_cache_zalloc [2021-11-25 20:01:46,200 INFO L138 BoogieDeclarations]: Found implementation of procedure kmem_cache_zalloc [2021-11-25 20:01:46,200 INFO L130 BoogieDeclarations]: Found specification of procedure read_seqcount_retry [2021-11-25 20:01:46,201 INFO L138 BoogieDeclarations]: Found implementation of procedure read_seqcount_retry [2021-11-25 20:01:46,201 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_176 [2021-11-25 20:01:46,201 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_176 [2021-11-25 20:01:46,201 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2021-11-25 20:01:46,201 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2021-11-25 20:01:46,201 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-11-25 20:01:46,202 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-11-25 20:01:46,202 INFO L130 BoogieDeclarations]: Found specification of procedure release_stripe [2021-11-25 20:01:46,202 INFO L138 BoogieDeclarations]: Found implementation of procedure release_stripe [2021-11-25 20:01:46,202 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2021-11-25 20:01:46,203 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2021-11-25 20:01:46,203 INFO L130 BoogieDeclarations]: Found specification of procedure disk_devt [2021-11-25 20:01:46,203 INFO L138 BoogieDeclarations]: Found implementation of procedure disk_devt [2021-11-25 20:01:46,203 INFO L130 BoogieDeclarations]: Found specification of procedure make_request [2021-11-25 20:01:46,204 INFO L138 BoogieDeclarations]: Found implementation of procedure make_request [2021-11-25 20:01:46,204 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2021-11-25 20:01:46,204 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2021-11-25 20:01:46,204 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irq_103 [2021-11-25 20:01:46,205 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irq_103 [2021-11-25 20:01:46,205 INFO L130 BoogieDeclarations]: Found specification of procedure finish_wait [2021-11-25 20:01:46,205 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_wait [2021-11-25 20:01:46,205 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-25 20:01:46,205 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-25 20:01:46,205 INFO L130 BoogieDeclarations]: Found specification of procedure bdev_get_queue [2021-11-25 20:01:46,206 INFO L138 BoogieDeclarations]: Found implementation of procedure bdev_get_queue [2021-11-25 20:01:46,206 INFO L130 BoogieDeclarations]: Found specification of procedure raid5_start_reshape [2021-11-25 20:01:46,206 INFO L138 BoogieDeclarations]: Found implementation of procedure raid5_start_reshape [2021-11-25 20:01:46,206 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2021-11-25 20:01:46,206 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2021-11-25 20:01:46,206 INFO L130 BoogieDeclarations]: Found specification of procedure sysfs_notify_dirent_safe [2021-11-25 20:01:46,207 INFO L138 BoogieDeclarations]: Found implementation of procedure sysfs_notify_dirent_safe [2021-11-25 20:01:46,207 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2021-11-25 20:01:46,207 INFO L130 BoogieDeclarations]: Found specification of procedure mddev_lock [2021-11-25 20:01:46,207 INFO L138 BoogieDeclarations]: Found implementation of procedure mddev_lock [2021-11-25 20:01:46,207 INFO L130 BoogieDeclarations]: Found specification of procedure list_del_init [2021-11-25 20:01:46,207 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del_init [2021-11-25 20:01:46,208 INFO L130 BoogieDeclarations]: Found specification of procedure trace_hardirqs_on [2021-11-25 20:01:46,208 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_hardirqs_on [2021-11-25 20:01:46,208 INFO L130 BoogieDeclarations]: Found specification of procedure write_seqcount_end [2021-11-25 20:01:46,208 INFO L138 BoogieDeclarations]: Found implementation of procedure write_seqcount_end [2021-11-25 20:01:46,208 INFO L130 BoogieDeclarations]: Found specification of procedure set_capacity [2021-11-25 20:01:46,208 INFO L138 BoogieDeclarations]: Found implementation of procedure set_capacity [2021-11-25 20:01:46,209 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-25 20:01:46,209 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-25 20:01:46,209 INFO L130 BoogieDeclarations]: Found specification of procedure raid5_resize [2021-11-25 20:01:46,209 INFO L138 BoogieDeclarations]: Found implementation of procedure raid5_resize [2021-11-25 20:01:46,209 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_128 [2021-11-25 20:01:46,209 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_128 [2021-11-25 20:01:46,210 INFO L130 BoogieDeclarations]: Found specification of procedure trace_block_bio_remap [2021-11-25 20:01:46,210 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_block_bio_remap [2021-11-25 20:01:46,210 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_sock_check_final_state [2021-11-25 20:01:46,210 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_sock_check_final_state [2021-11-25 20:01:46,210 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_for_read_section [2021-11-25 20:01:46,211 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_for_read_section [2021-11-25 20:01:46,211 INFO L130 BoogieDeclarations]: Found specification of procedure ERR_PTR [2021-11-25 20:01:46,211 INFO L138 BoogieDeclarations]: Found implementation of procedure ERR_PTR [2021-11-25 20:01:46,211 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock_sched_held [2021-11-25 20:01:46,211 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock_sched_held [2021-11-25 20:01:46,211 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_gadget_check_final_state [2021-11-25 20:01:46,212 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_gadget_check_final_state [2021-11-25 20:01:46,212 INFO L130 BoogieDeclarations]: Found specification of procedure run [2021-11-25 20:01:46,212 INFO L138 BoogieDeclarations]: Found implementation of procedure run [2021-11-25 20:01:46,212 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-25 20:01:46,212 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-11-25 20:01:46,212 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-11-25 20:01:46,213 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_fs_sysfs_check_final_state [2021-11-25 20:01:46,213 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_fs_sysfs_check_final_state [2021-11-25 20:01:46,213 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-25 20:01:46,213 INFO L130 BoogieDeclarations]: Found specification of procedure put_page [2021-11-25 20:01:46,213 INFO L138 BoogieDeclarations]: Found implementation of procedure put_page [2021-11-25 20:01:46,213 INFO L130 BoogieDeclarations]: Found specification of procedure drop_one_stripe [2021-11-25 20:01:46,214 INFO L138 BoogieDeclarations]: Found implementation of procedure drop_one_stripe [2021-11-25 20:01:46,214 INFO L130 BoogieDeclarations]: Found specification of procedure bio_put [2021-11-25 20:01:46,214 INFO L138 BoogieDeclarations]: Found implementation of procedure bio_put [2021-11-25 20:01:46,214 INFO L130 BoogieDeclarations]: Found specification of procedure raid5_add_disk [2021-11-25 20:01:46,214 INFO L138 BoogieDeclarations]: Found implementation of procedure raid5_add_disk [2021-11-25 20:01:46,214 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2021-11-25 20:01:46,215 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2021-11-25 20:01:46,215 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work_on [2021-11-25 20:01:46,215 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work_on [2021-11-25 20:01:46,215 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2021-11-25 20:01:46,215 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2021-11-25 20:01:46,215 INFO L130 BoogieDeclarations]: Found specification of procedure shrink_buffers [2021-11-25 20:01:46,216 INFO L138 BoogieDeclarations]: Found implementation of procedure shrink_buffers [2021-11-25 20:01:46,216 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-11-25 20:01:46,216 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-11-25 20:01:46,216 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_spinlock_spin_unlock_stripe_lock_of_stripe_head [2021-11-25 20:01:46,216 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_spinlock_spin_unlock_stripe_lock_of_stripe_head [2021-11-25 20:01:46,216 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2021-11-25 20:01:46,217 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2021-11-25 20:01:46,217 INFO L130 BoogieDeclarations]: Found specification of procedure mdname [2021-11-25 20:01:46,217 INFO L138 BoogieDeclarations]: Found implementation of procedure mdname [2021-11-25 20:01:46,217 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_check_final_state [2021-11-25 20:01:46,217 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_check_final_state [2021-11-25 20:01:46,218 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_urb_check_final_state [2021-11-25 20:01:46,218 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_urb_check_final_state [2021-11-25 20:01:46,219 INFO L130 BoogieDeclarations]: Found specification of procedure mddev_suspend [2021-11-25 20:01:46,219 INFO L138 BoogieDeclarations]: Found implementation of procedure mddev_suspend [2021-11-25 20:01:46,219 INFO L130 BoogieDeclarations]: Found specification of procedure free_conf [2021-11-25 20:01:46,220 INFO L138 BoogieDeclarations]: Found implementation of procedure free_conf [2021-11-25 20:01:46,220 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-11-25 20:01:46,220 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-11-25 20:01:46,220 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_cmpxchg [2021-11-25 20:01:46,220 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_cmpxchg [2021-11-25 20:01:46,220 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock_held [2021-11-25 20:01:46,221 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock_held [2021-11-25 20:01:46,221 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-25 20:01:46,221 INFO L130 BoogieDeclarations]: Found specification of procedure grow_one_stripe [2021-11-25 20:01:46,221 INFO L138 BoogieDeclarations]: Found implementation of procedure grow_one_stripe [2021-11-25 20:01:46,221 INFO L130 BoogieDeclarations]: Found specification of procedure rdev_dec_pending [2021-11-25 20:01:46,221 INFO L138 BoogieDeclarations]: Found implementation of procedure rdev_dec_pending [2021-11-25 20:01:46,222 INFO L130 BoogieDeclarations]: Found specification of procedure mddev_resume [2021-11-25 20:01:46,222 INFO L138 BoogieDeclarations]: Found implementation of procedure mddev_resume [2021-11-25 20:01:46,222 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2021-11-25 20:01:46,222 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2021-11-25 20:01:46,222 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-25 20:01:46,222 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-25 20:01:46,222 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_spinlock_spin_lock_stripe_lock_of_stripe_head [2021-11-25 20:01:46,223 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_spinlock_spin_lock_stripe_lock_of_stripe_head [2021-11-25 20:01:46,223 INFO L130 BoogieDeclarations]: Found specification of procedure kmem_cache_destroy [2021-11-25 20:01:46,223 INFO L138 BoogieDeclarations]: Found implementation of procedure kmem_cache_destroy [2021-11-25 20:01:46,223 INFO L130 BoogieDeclarations]: Found specification of procedure get_online_cpus [2021-11-25 20:01:46,223 INFO L138 BoogieDeclarations]: Found implementation of procedure get_online_cpus [2021-11-25 20:01:46,223 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_101 [2021-11-25 20:01:46,224 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_101 [2021-11-25 20:01:46,224 INFO L130 BoogieDeclarations]: Found specification of procedure cpumask_next [2021-11-25 20:01:46,224 INFO L138 BoogieDeclarations]: Found implementation of procedure cpumask_next [2021-11-25 20:01:46,224 INFO L130 BoogieDeclarations]: Found specification of procedure __preempt_count_add [2021-11-25 20:01:46,224 INFO L138 BoogieDeclarations]: Found implementation of procedure __preempt_count_add [2021-11-25 20:01:46,224 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_add_unless [2021-11-25 20:01:46,225 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_add_unless [2021-11-25 20:01:46,225 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_scratch_buffer [2021-11-25 20:01:46,225 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_scratch_buffer [2021-11-25 20:01:46,225 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec [2021-11-25 20:01:46,225 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec [2021-11-25 20:01:46,225 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_register_md_personality [2021-11-25 20:01:46,226 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_register_md_personality [2021-11-25 20:01:46,226 INFO L130 BoogieDeclarations]: Found specification of procedure cpumask_check [2021-11-25 20:01:46,226 INFO L138 BoogieDeclarations]: Found implementation of procedure cpumask_check [2021-11-25 20:01:46,226 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2021-11-25 20:01:46,226 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2021-11-25 20:01:46,226 INFO L130 BoogieDeclarations]: Found specification of procedure static_key_false [2021-11-25 20:01:46,227 INFO L138 BoogieDeclarations]: Found implementation of procedure static_key_false [2021-11-25 20:01:46,227 INFO L130 BoogieDeclarations]: Found specification of procedure bitmap_startwrite [2021-11-25 20:01:46,227 INFO L138 BoogieDeclarations]: Found implementation of procedure bitmap_startwrite [2021-11-25 20:01:46,227 INFO L130 BoogieDeclarations]: Found specification of procedure kstrtoul [2021-11-25 20:01:46,227 INFO L138 BoogieDeclarations]: Found implementation of procedure kstrtoul [2021-11-25 20:01:46,227 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_to_wait [2021-11-25 20:01:46,228 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_to_wait [2021-11-25 20:01:46,228 INFO L130 BoogieDeclarations]: Found specification of procedure raid45_takeover_raid0 [2021-11-25 20:01:46,228 INFO L138 BoogieDeclarations]: Found implementation of procedure raid45_takeover_raid0 [2021-11-25 20:01:46,228 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2021-11-25 20:01:46,228 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2021-11-25 20:01:46,228 INFO L130 BoogieDeclarations]: Found specification of procedure sysfs_notify [2021-11-25 20:01:46,229 INFO L138 BoogieDeclarations]: Found implementation of procedure sysfs_notify [2021-11-25 20:01:46,229 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_coherent_check_final_state [2021-11-25 20:01:46,229 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_coherent_check_final_state [2021-11-25 20:01:46,229 INFO L130 BoogieDeclarations]: Found specification of procedure raid5_finish_reshape [2021-11-25 20:01:46,229 INFO L138 BoogieDeclarations]: Found implementation of procedure raid5_finish_reshape [2021-11-25 20:01:46,229 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-25 20:01:46,230 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-25 20:01:46,230 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2021-11-25 20:01:46,230 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2021-11-25 20:01:46,230 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-25 20:01:46,230 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-25 20:01:46,230 INFO L130 BoogieDeclarations]: Found specification of procedure bitmap_start_sync [2021-11-25 20:01:46,231 INFO L138 BoogieDeclarations]: Found implementation of procedure bitmap_start_sync [2021-11-25 20:01:46,231 INFO L130 BoogieDeclarations]: Found specification of procedure raid5_check_reshape [2021-11-25 20:01:46,231 INFO L138 BoogieDeclarations]: Found implementation of procedure raid5_check_reshape [2021-11-25 20:01:46,231 INFO L130 BoogieDeclarations]: Found specification of procedure lock_release [2021-11-25 20:01:46,231 INFO L138 BoogieDeclarations]: Found implementation of procedure lock_release [2021-11-25 20:01:46,231 INFO L130 BoogieDeclarations]: Found specification of procedure setup_conf [2021-11-25 20:01:46,231 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_conf [2021-11-25 20:01:46,232 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_arch_io_check_final_state [2021-11-25 20:01:46,232 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_arch_io_check_final_state [2021-11-25 20:01:46,232 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_module_check_final_state [2021-11-25 20:01:46,232 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_module_check_final_state [2021-11-25 20:01:46,232 INFO L130 BoogieDeclarations]: Found specification of procedure scribble_len [2021-11-25 20:01:46,232 INFO L138 BoogieDeclarations]: Found implementation of procedure scribble_len [2021-11-25 20:01:46,233 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-11-25 20:01:46,233 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-11-25 20:01:46,233 INFO L130 BoogieDeclarations]: Found specification of procedure add_stripe_bio [2021-11-25 20:01:46,233 INFO L138 BoogieDeclarations]: Found implementation of procedure add_stripe_bio [2021-11-25 20:01:46,233 INFO L130 BoogieDeclarations]: Found specification of procedure bio_init [2021-11-25 20:01:46,233 INFO L138 BoogieDeclarations]: Found implementation of procedure bio_init [2021-11-25 20:01:46,234 INFO L130 BoogieDeclarations]: Found specification of procedure generic_make_request [2021-11-25 20:01:46,234 INFO L138 BoogieDeclarations]: Found implementation of procedure generic_make_request [2021-11-25 20:01:46,234 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_pages [2021-11-25 20:01:46,234 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_pages [2021-11-25 20:01:46,234 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-11-25 20:01:46,234 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-11-25 20:01:46,235 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec_and_test [2021-11-25 20:01:46,235 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec_and_test [2021-11-25 20:01:46,235 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_175 [2021-11-25 20:01:46,235 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_175 [2021-11-25 20:01:46,235 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-25 20:01:46,235 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-25 20:01:46,236 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_queue_check_final_state [2021-11-25 20:01:46,236 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_queue_check_final_state [2021-11-25 20:01:46,236 INFO L130 BoogieDeclarations]: Found specification of procedure md_write_end [2021-11-25 20:01:46,236 INFO L138 BoogieDeclarations]: Found implementation of procedure md_write_end [2021-11-25 20:01:46,236 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-25 20:01:46,236 INFO L130 BoogieDeclarations]: Found specification of procedure is_badblock [2021-11-25 20:01:46,237 INFO L138 BoogieDeclarations]: Found implementation of procedure is_badblock [2021-11-25 20:01:46,237 INFO L130 BoogieDeclarations]: Found specification of procedure md_set_array_sectors [2021-11-25 20:01:46,237 INFO L138 BoogieDeclarations]: Found implementation of procedure md_set_array_sectors [2021-11-25 20:01:46,237 INFO L130 BoogieDeclarations]: Found specification of procedure raid5_dec_bi_active_stripes [2021-11-25 20:01:46,237 INFO L138 BoogieDeclarations]: Found implementation of procedure raid5_dec_bi_active_stripes [2021-11-25 20:01:46,237 INFO L130 BoogieDeclarations]: Found specification of procedure register_md_personality [2021-11-25 20:01:46,238 INFO L138 BoogieDeclarations]: Found implementation of procedure register_md_personality [2021-11-25 20:01:46,238 INFO L130 BoogieDeclarations]: Found specification of procedure schedule [2021-11-25 20:01:46,238 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule [2021-11-25 20:01:46,238 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2021-11-25 20:01:46,238 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2021-11-25 20:01:46,239 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_in_interrupt_context [2021-11-25 20:01:46,239 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_in_interrupt_context [2021-11-25 20:01:46,239 INFO L130 BoogieDeclarations]: Found specification of procedure get_start_sect [2021-11-25 20:01:46,239 INFO L138 BoogieDeclarations]: Found implementation of procedure get_start_sect [2021-11-25 20:01:46,239 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_after_alloc [2021-11-25 20:01:46,239 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_after_alloc [2021-11-25 20:01:46,239 INFO L130 BoogieDeclarations]: Found specification of procedure print_raid5_conf [2021-11-25 20:01:46,240 INFO L138 BoogieDeclarations]: Found implementation of procedure print_raid5_conf [2021-11-25 20:01:46,240 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_register_reset_error_counter [2021-11-25 20:01:46,240 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_register_reset_error_counter [2021-11-25 20:01:46,240 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2021-11-25 20:01:46,240 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2021-11-25 20:01:46,241 INFO L130 BoogieDeclarations]: Found specification of procedure status [2021-11-25 20:01:46,241 INFO L138 BoogieDeclarations]: Found implementation of procedure status [2021-11-25 20:01:46,241 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2021-11-25 20:01:46,241 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2021-11-25 20:01:46,241 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_lib_idr_check_final_state [2021-11-25 20:01:46,241 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_lib_idr_check_final_state [2021-11-25 20:01:46,242 INFO L130 BoogieDeclarations]: Found specification of procedure md_wakeup_thread [2021-11-25 20:01:46,242 INFO L138 BoogieDeclarations]: Found implementation of procedure md_wakeup_thread [2021-11-25 20:01:46,242 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_irq_save [2021-11-25 20:01:46,242 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_irq_save [2021-11-25 20:01:46,242 INFO L130 BoogieDeclarations]: Found specification of procedure raid5_inc_bi_active_stripes [2021-11-25 20:01:46,242 INFO L138 BoogieDeclarations]: Found implementation of procedure raid5_inc_bi_active_stripes [2021-11-25 20:01:46,243 INFO L130 BoogieDeclarations]: Found specification of procedure disk_stack_limits [2021-11-25 20:01:46,243 INFO L138 BoogieDeclarations]: Found implementation of procedure disk_stack_limits [2021-11-25 20:01:46,243 INFO L130 BoogieDeclarations]: Found specification of procedure remove_hash [2021-11-25 20:01:46,243 INFO L138 BoogieDeclarations]: Found implementation of procedure remove_hash [2021-11-25 20:01:46,243 INFO L130 BoogieDeclarations]: Found specification of procedure stripe_hash [2021-11-25 20:01:46,243 INFO L138 BoogieDeclarations]: Found implementation of procedure stripe_hash [2021-11-25 20:01:46,244 INFO L130 BoogieDeclarations]: Found specification of procedure release_inactive_stripe_list [2021-11-25 20:01:46,244 INFO L138 BoogieDeclarations]: Found implementation of procedure release_inactive_stripe_list [2021-11-25 20:01:46,244 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_register_reset_error_counter [2021-11-25 20:01:46,244 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_register_reset_error_counter [2021-11-25 20:01:46,244 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2021-11-25 20:01:46,244 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2021-11-25 20:01:46,245 INFO L130 BoogieDeclarations]: Found specification of procedure write_seqcount_begin [2021-11-25 20:01:46,245 INFO L138 BoogieDeclarations]: Found implementation of procedure write_seqcount_begin [2021-11-25 20:01:46,245 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_save_flags [2021-11-25 20:01:46,245 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_save_flags [2021-11-25 20:01:46,245 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_spinlock_spin_lock_device_lock_of_r5conf [2021-11-25 20:01:46,245 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_spinlock_spin_lock_device_lock_of_r5conf [2021-11-25 20:01:46,246 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_irq_disable [2021-11-25 20:01:46,246 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_irq_disable [2021-11-25 20:01:46,246 INFO L130 BoogieDeclarations]: Found specification of procedure __cmpxchg_wrong_size [2021-11-25 20:01:46,246 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_md_personality [2021-11-25 20:01:46,246 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_md_personality [2021-11-25 20:01:46,246 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-25 20:01:46,247 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-25 20:01:46,247 INFO L130 BoogieDeclarations]: Found specification of procedure raid5_size [2021-11-25 20:01:46,247 INFO L138 BoogieDeclarations]: Found implementation of procedure raid5_size [2021-11-25 20:01:46,247 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-11-25 20:01:46,247 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-11-25 20:01:46,247 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock_try [2021-11-25 20:01:46,248 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock_try [2021-11-25 20:01:46,248 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_sub_return [2021-11-25 20:01:46,248 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_sub_return [2021-11-25 20:01:46,248 INFO L130 BoogieDeclarations]: Found specification of procedure raid5_spare_active [2021-11-25 20:01:46,248 INFO L138 BoogieDeclarations]: Found implementation of procedure raid5_spare_active [2021-11-25 20:01:46,249 INFO L130 BoogieDeclarations]: Found specification of procedure md_allow_write [2021-11-25 20:01:46,249 INFO L138 BoogieDeclarations]: Found implementation of procedure md_allow_write [2021-11-25 20:01:46,249 INFO L130 BoogieDeclarations]: Found specification of procedure lock_all_device_hash_locks_irq [2021-11-25 20:01:46,249 INFO L138 BoogieDeclarations]: Found implementation of procedure lock_all_device_hash_locks_irq [2021-11-25 20:01:46,249 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2021-11-25 20:01:46,249 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2021-11-25 20:01:46,250 INFO L130 BoogieDeclarations]: Found specification of procedure unlock_device_hash_lock [2021-11-25 20:01:46,250 INFO L138 BoogieDeclarations]: Found implementation of procedure unlock_device_hash_lock [2021-11-25 20:01:46,250 INFO L130 BoogieDeclarations]: Found specification of procedure md_register_thread [2021-11-25 20:01:46,250 INFO L138 BoogieDeclarations]: Found implementation of procedure md_register_thread [2021-11-25 20:01:46,250 INFO L130 BoogieDeclarations]: Found specification of procedure check_stripe_cache [2021-11-25 20:01:46,250 INFO L138 BoogieDeclarations]: Found implementation of procedure check_stripe_cache [2021-11-25 20:01:46,251 INFO L130 BoogieDeclarations]: Found specification of procedure trace_hardirqs_off [2021-11-25 20:01:46,251 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_hardirqs_off [2021-11-25 20:01:46,251 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_spinlock_spin_lock_NOT_ARG_SIGN [2021-11-25 20:01:46,251 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_spinlock_spin_lock_NOT_ARG_SIGN [2021-11-25 20:01:46,251 INFO L130 BoogieDeclarations]: Found specification of procedure raid5_quiesce [2021-11-25 20:01:46,251 INFO L138 BoogieDeclarations]: Found implementation of procedure raid5_quiesce [2021-11-25 20:01:46,252 INFO L130 BoogieDeclarations]: Found specification of procedure raid5_store_stripe_cache_size [2021-11-25 20:01:46,252 INFO L138 BoogieDeclarations]: Found implementation of procedure raid5_store_stripe_cache_size [2021-11-25 20:01:46,252 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_unlock_sched_notrace [2021-11-25 20:01:46,252 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_unlock_sched_notrace [2021-11-25 20:01:46,252 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-25 20:01:46,252 INFO L130 BoogieDeclarations]: Found specification of procedure raid5_compute_sector [2021-11-25 20:01:46,253 INFO L138 BoogieDeclarations]: Found implementation of procedure raid5_compute_sector [2021-11-25 20:01:46,253 INFO L130 BoogieDeclarations]: Found specification of procedure trace_block_bio_complete [2021-11-25 20:01:46,253 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_block_bio_complete [2021-11-25 20:01:46,253 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_rtnetlink_check_final_state [2021-11-25 20:01:46,253 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_rtnetlink_check_final_state [2021-11-25 20:01:46,253 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-11-25 20:01:46,254 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-11-25 20:01:46,254 INFO L130 BoogieDeclarations]: Found specification of procedure do_release_stripe [2021-11-25 20:01:46,254 INFO L138 BoogieDeclarations]: Found implementation of procedure do_release_stripe [2021-11-25 20:01:46,254 INFO L130 BoogieDeclarations]: Found specification of procedure raid5_mergeable_bvec [2021-11-25 20:01:46,254 INFO L138 BoogieDeclarations]: Found implementation of procedure raid5_mergeable_bvec [2021-11-25 20:01:46,255 INFO L130 BoogieDeclarations]: Found specification of procedure check_reshape [2021-11-25 20:01:46,255 INFO L138 BoogieDeclarations]: Found implementation of procedure check_reshape [2021-11-25 20:01:46,255 INFO L130 BoogieDeclarations]: Found specification of procedure get_free_stripe [2021-11-25 20:01:46,255 INFO L138 BoogieDeclarations]: Found implementation of procedure get_free_stripe [2021-11-25 20:01:46,255 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2021-11-25 20:01:46,255 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2021-11-25 20:01:46,256 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_irq_100 [2021-11-25 20:01:46,256 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_irq_100 [2021-11-25 20:01:46,256 INFO L130 BoogieDeclarations]: Found specification of procedure r5_next_bio [2021-11-25 20:01:46,256 INFO L138 BoogieDeclarations]: Found implementation of procedure r5_next_bio [2021-11-25 20:01:46,256 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_linux_kernel_locking_spinlock_spin_lock [2021-11-25 20:01:46,256 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_linux_kernel_locking_spinlock_spin_lock [2021-11-25 20:01:46,257 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_rwlock_check_final_state [2021-11-25 20:01:46,257 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_rwlock_check_final_state [2021-11-25 20:01:46,257 INFO L130 BoogieDeclarations]: Found specification of procedure only_parity [2021-11-25 20:01:46,257 INFO L138 BoogieDeclarations]: Found implementation of procedure only_parity [2021-11-25 20:01:46,257 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-11-25 20:01:46,257 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-11-25 20:01:46,257 INFO L130 BoogieDeclarations]: Found specification of procedure mddev_unlock [2021-11-25 20:01:46,258 INFO L138 BoogieDeclarations]: Found implementation of procedure mddev_unlock [2021-11-25 20:01:46,258 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_fs_char_dev_check_final_state [2021-11-25 20:01:46,258 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_fs_char_dev_check_final_state [2021-11-25 20:01:46,258 INFO L130 BoogieDeclarations]: Found specification of procedure is_power_of_2 [2021-11-25 20:01:46,258 INFO L138 BoogieDeclarations]: Found implementation of procedure is_power_of_2 [2021-11-25 20:01:46,258 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_spinlock_spin_unlock_NOT_ARG_SIGN [2021-11-25 20:01:46,259 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_spinlock_spin_unlock_NOT_ARG_SIGN [2021-11-25 20:01:46,259 INFO L130 BoogieDeclarations]: Found specification of procedure release_stripe_plug [2021-11-25 20:01:46,259 INFO L138 BoogieDeclarations]: Found implementation of procedure release_stripe_plug [2021-11-25 20:01:46,259 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_drivers_base_class_check_final_state [2021-11-25 20:01:46,259 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_drivers_base_class_check_final_state [2021-11-25 20:01:46,259 INFO L130 BoogieDeclarations]: Found specification of procedure has_failed [2021-11-25 20:01:46,260 INFO L138 BoogieDeclarations]: Found implementation of procedure has_failed [2021-11-25 20:01:46,260 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2021-11-25 20:01:46,260 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2021-11-25 20:01:46,260 INFO L130 BoogieDeclarations]: Found specification of procedure unlock_all_device_hash_locks_irq [2021-11-25 20:01:46,260 INFO L138 BoogieDeclarations]: Found implementation of procedure unlock_all_device_hash_locks_irq [2021-11-25 20:01:46,260 INFO L130 BoogieDeclarations]: Found specification of procedure lock_acquire [2021-11-25 20:01:46,261 INFO L138 BoogieDeclarations]: Found implementation of procedure lock_acquire [2021-11-25 20:01:46,261 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2021-11-25 20:01:46,261 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2021-11-25 20:01:46,261 INFO L130 BoogieDeclarations]: Found specification of procedure raid5_free [2021-11-25 20:01:46,261 INFO L138 BoogieDeclarations]: Found implementation of procedure raid5_free [2021-11-25 20:01:46,261 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_rcu_suspicious [2021-11-25 20:01:46,262 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_rcu_suspicious [2021-11-25 20:01:46,262 INFO L130 BoogieDeclarations]: Found specification of procedure calc_degraded [2021-11-25 20:01:46,262 INFO L138 BoogieDeclarations]: Found implementation of procedure calc_degraded [2021-11-25 20:01:46,262 INFO L130 BoogieDeclarations]: Found specification of procedure algorithm_valid_raid6 [2021-11-25 20:01:46,262 INFO L138 BoogieDeclarations]: Found implementation of procedure algorithm_valid_raid6 [2021-11-25 20:01:46,262 INFO L130 BoogieDeclarations]: Found specification of procedure algorithm_valid_raid5 [2021-11-25 20:01:46,263 INFO L138 BoogieDeclarations]: Found implementation of procedure algorithm_valid_raid5 [2021-11-25 20:01:46,263 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-11-25 20:01:46,263 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-11-25 20:01:46,263 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_irq_136 [2021-11-25 20:01:46,263 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_irq_136 [2021-11-25 20:01:46,263 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_add_return [2021-11-25 20:01:46,264 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_add_return [2021-11-25 20:01:46,264 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_sched_check_final_state [2021-11-25 20:01:46,264 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_sched_check_final_state [2021-11-25 20:01:46,264 INFO L130 BoogieDeclarations]: Found specification of procedure error [2021-11-25 20:01:46,264 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2021-11-25 20:01:46,264 INFO L130 BoogieDeclarations]: Found specification of procedure kmem_cache_free [2021-11-25 20:01:46,265 INFO L138 BoogieDeclarations]: Found implementation of procedure kmem_cache_free [2021-11-25 20:01:46,265 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2021-11-25 20:01:46,265 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2021-11-25 20:01:46,265 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_irq_121 [2021-11-25 20:01:46,265 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_irq_121 [2021-11-25 20:01:46,265 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_unlock [2021-11-25 20:01:46,266 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_unlock [2021-11-25 20:01:46,266 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-25 20:01:47,894 INFO L236 CfgBuilder]: Building ICFG [2021-11-25 20:01:47,899 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-25 20:01:48,336 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-25 20:02:03,331 INFO L277 CfgBuilder]: Performing block encoding [2021-11-25 20:02:07,291 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-25 20:02:07,291 INFO L301 CfgBuilder]: Removed 10 assume(true) statements. [2021-11-25 20:02:07,301 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:02:07 BoogieIcfgContainer [2021-11-25 20:02:07,301 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-25 20:02:07,304 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-25 20:02:07,304 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-25 20:02:07,308 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-25 20:02:07,308 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 08:01:30" (1/3) ... [2021-11-25 20:02:07,309 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7fea3b6a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 08:02:07, skipping insertion in model container [2021-11-25 20:02:07,310 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:01:44" (2/3) ... [2021-11-25 20:02:07,310 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7fea3b6a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 08:02:07, skipping insertion in model container [2021-11-25 20:02:07,310 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:02:07" (3/3) ... [2021-11-25 20:02:07,312 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.0-rc1---drivers--md--raid456.ko.cil.i [2021-11-25 20:02:07,319 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-25 20:02:07,319 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 33 error locations. [2021-11-25 20:02:07,407 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-25 20:02:07,418 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=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-25 20:02:07,419 INFO L340 AbstractCegarLoop]: Starting to check reachability of 33 error locations. [2021-11-25 20:02:07,533 INFO L276 IsEmpty]: Start isEmpty. Operand has 3334 states, 1918 states have (on average 1.3415015641293013) internal successors, (2573), 2076 states have internal predecessors, (2573), 1149 states have call successors, (1149), 234 states have call predecessors, (1149), 233 states have return successors, (1141), 1120 states have call predecessors, (1141), 1141 states have call successors, (1141) [2021-11-25 20:02:07,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-11-25 20:02:07,542 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:02:07,543 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-11-25 20:02:07,543 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_linux_arch_io_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-25 20:02:07,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:02:07,550 INFO L85 PathProgramCache]: Analyzing trace with hash -1054182976, now seen corresponding path program 1 times [2021-11-25 20:02:07,561 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:02:07,562 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [686308721] [2021-11-25 20:02:07,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:02:07,563 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:02:08,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:02:08,543 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-25 20:02:08,543 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:02:08,544 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [686308721] [2021-11-25 20:02:08,544 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [686308721] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:02:08,545 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:02:08,545 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 20:02:08,547 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1809695826] [2021-11-25 20:02:08,548 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:02:08,556 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 20:02:08,558 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:02:08,605 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 20:02:08,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 20:02:08,619 INFO L87 Difference]: Start difference. First operand has 3334 states, 1918 states have (on average 1.3415015641293013) internal successors, (2573), 2076 states have internal predecessors, (2573), 1149 states have call successors, (1149), 234 states have call predecessors, (1149), 233 states have return successors, (1141), 1120 states have call predecessors, (1141), 1141 states have call successors, (1141) Second operand has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-11-25 20:02:11,462 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 20:02:14,162 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:02:16,854 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 20:02:19,721 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 20:02:20,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:02:20,600 INFO L93 Difference]: Finished difference Result 6657 states and 9979 transitions. [2021-11-25 20:02:20,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 20:02:20,605 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 38 [2021-11-25 20:02:20,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:02:20,681 INFO L225 Difference]: With dead ends: 6657 [2021-11-25 20:02:20,681 INFO L226 Difference]: Without dead ends: 3318 [2021-11-25 20:02:20,737 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 20:02:20,742 INFO L933 BasicCegarLoop]: 4294 mSDtfsCounter, 4795 mSDsluCounter, 4829 mSDsCounter, 0 mSdLazyCounter, 1059 mSolverCounterSat, 0 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4805 SdHoareTripleChecker+Valid, 8593 SdHoareTripleChecker+Invalid, 1063 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1059 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.2s IncrementalHoareTripleChecker+Time [2021-11-25 20:02:20,744 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4805 Valid, 8593 Invalid, 1063 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 1059 Invalid, 4 Unknown, 0 Unchecked, 11.2s Time] [2021-11-25 20:02:20,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3318 states. [2021-11-25 20:02:21,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3318 to 3318. [2021-11-25 20:02:21,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3318 states, 1912 states have (on average 1.3206066945606694) internal successors, (2525), 2062 states have internal predecessors, (2525), 1141 states have call successors, (1141), 234 states have call predecessors, (1141), 233 states have return successors, (1139), 1118 states have call predecessors, (1139), 1139 states have call successors, (1139) [2021-11-25 20:02:21,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3318 states to 3318 states and 4805 transitions. [2021-11-25 20:02:21,243 INFO L78 Accepts]: Start accepts. Automaton has 3318 states and 4805 transitions. Word has length 38 [2021-11-25 20:02:21,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:02:21,245 INFO L470 AbstractCegarLoop]: Abstraction has 3318 states and 4805 transitions. [2021-11-25 20:02:21,245 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-11-25 20:02:21,245 INFO L276 IsEmpty]: Start isEmpty. Operand 3318 states and 4805 transitions. [2021-11-25 20:02:21,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2021-11-25 20:02:21,262 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:02:21,262 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-11-25 20:02:21,263 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-25 20:02:21,263 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_linux_block_genhd_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-25 20:02:21,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:02:21,267 INFO L85 PathProgramCache]: Analyzing trace with hash 1222401184, now seen corresponding path program 1 times [2021-11-25 20:02:21,267 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:02:21,267 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1656472805] [2021-11-25 20:02:21,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:02:21,268 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:02:21,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:02:21,646 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-25 20:02:21,646 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:02:21,647 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1656472805] [2021-11-25 20:02:21,647 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1656472805] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:02:21,647 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:02:21,647 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 20:02:21,648 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2025017979] [2021-11-25 20:02:21,648 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:02:21,649 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 20:02:21,650 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:02:21,650 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 20:02:21,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 20:02:21,651 INFO L87 Difference]: Start difference. First operand 3318 states and 4805 transitions. Second operand has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2021-11-25 20:02:24,319 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 [] [2021-11-25 20:02:27,079 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:02:29,764 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 20:02:32,268 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 20:02:33,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:02:33,545 INFO L93 Difference]: Finished difference Result 4151 states and 5911 transitions. [2021-11-25 20:02:33,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 20:02:33,546 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 43 [2021-11-25 20:02:33,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:02:33,588 INFO L225 Difference]: With dead ends: 4151 [2021-11-25 20:02:33,588 INFO L226 Difference]: Without dead ends: 4149 [2021-11-25 20:02:33,593 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 20:02:33,594 INFO L933 BasicCegarLoop]: 4692 mSDtfsCounter, 4726 mSDsluCounter, 6377 mSDsCounter, 0 mSdLazyCounter, 1216 mSolverCounterSat, 0 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4743 SdHoareTripleChecker+Valid, 10393 SdHoareTripleChecker+Invalid, 1220 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1216 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.5s IncrementalHoareTripleChecker+Time [2021-11-25 20:02:33,594 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4743 Valid, 10393 Invalid, 1220 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 1216 Invalid, 4 Unknown, 0 Unchecked, 11.5s Time] [2021-11-25 20:02:33,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4149 states. [2021-11-25 20:02:33,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4149 to 4131. [2021-11-25 20:02:33,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4131 states, 2359 states have (on average 1.3064857990674015) internal successors, (3082), 2541 states have internal predecessors, (3082), 1406 states have call successors, (1406), 336 states have call predecessors, (1406), 335 states have return successors, (1404), 1372 states have call predecessors, (1404), 1404 states have call successors, (1404) [2021-11-25 20:02:33,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4131 states to 4131 states and 5892 transitions. [2021-11-25 20:02:33,949 INFO L78 Accepts]: Start accepts. Automaton has 4131 states and 5892 transitions. Word has length 43 [2021-11-25 20:02:33,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:02:33,951 INFO L470 AbstractCegarLoop]: Abstraction has 4131 states and 5892 transitions. [2021-11-25 20:02:33,951 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2021-11-25 20:02:33,952 INFO L276 IsEmpty]: Start isEmpty. Operand 4131 states and 5892 transitions. [2021-11-25 20:02:33,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-11-25 20:02:33,962 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:02:33,962 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-11-25 20:02:33,962 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-25 20:02:33,964 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_linux_block_queue_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-25 20:02:33,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:02:33,965 INFO L85 PathProgramCache]: Analyzing trace with hash 797800105, now seen corresponding path program 1 times [2021-11-25 20:02:33,965 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:02:33,965 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1201236007] [2021-11-25 20:02:33,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:02:33,966 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:02:34,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:02:34,569 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-25 20:02:34,569 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:02:34,570 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1201236007] [2021-11-25 20:02:34,570 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1201236007] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:02:34,570 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:02:34,570 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 20:02:34,570 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1500824676] [2021-11-25 20:02:34,571 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:02:34,571 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 20:02:34,571 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:02:34,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 20:02:34,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 20:02:34,573 INFO L87 Difference]: Start difference. First operand 4131 states and 5892 transitions. Second operand has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-11-25 20:02:37,734 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 [] [2021-11-25 20:02:40,263 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 20:02:42,746 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 20:02:44,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:02:44,024 INFO L93 Difference]: Finished difference Result 4149 states and 5909 transitions. [2021-11-25 20:02:44,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 20:02:44,025 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 48 [2021-11-25 20:02:44,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:02:44,064 INFO L225 Difference]: With dead ends: 4149 [2021-11-25 20:02:44,065 INFO L226 Difference]: Without dead ends: 4147 [2021-11-25 20:02:44,069 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 20:02:44,070 INFO L933 BasicCegarLoop]: 4690 mSDtfsCounter, 4732 mSDsluCounter, 6370 mSDsCounter, 0 mSdLazyCounter, 1217 mSolverCounterSat, 0 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4747 SdHoareTripleChecker+Valid, 10384 SdHoareTripleChecker+Invalid, 1220 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1217 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.1s IncrementalHoareTripleChecker+Time [2021-11-25 20:02:44,071 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4747 Valid, 10384 Invalid, 1220 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 1217 Invalid, 3 Unknown, 0 Unchecked, 9.1s Time] [2021-11-25 20:02:44,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4147 states. [2021-11-25 20:02:44,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4147 to 4129. [2021-11-25 20:02:44,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4129 states, 2358 states have (on average 1.306191687871077) internal successors, (3080), 2539 states have internal predecessors, (3080), 1406 states have call successors, (1406), 336 states have call predecessors, (1406), 335 states have return successors, (1404), 1372 states have call predecessors, (1404), 1404 states have call successors, (1404) [2021-11-25 20:02:44,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4129 states to 4129 states and 5890 transitions. [2021-11-25 20:02:44,387 INFO L78 Accepts]: Start accepts. Automaton has 4129 states and 5890 transitions. Word has length 48 [2021-11-25 20:02:44,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:02:44,388 INFO L470 AbstractCegarLoop]: Abstraction has 4129 states and 5890 transitions. [2021-11-25 20:02:44,389 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-11-25 20:02:44,390 INFO L276 IsEmpty]: Start isEmpty. Operand 4129 states and 5890 transitions. [2021-11-25 20:02:44,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-11-25 20:02:44,392 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:02:44,393 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-11-25 20:02:44,393 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-25 20:02:44,394 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_linux_block_request_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-25 20:02:44,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:02:44,394 INFO L85 PathProgramCache]: Analyzing trace with hash -871618365, now seen corresponding path program 1 times [2021-11-25 20:02:44,394 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:02:44,395 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [146027611] [2021-11-25 20:02:44,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:02:44,395 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:02:44,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:02:44,755 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-25 20:02:44,755 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:02:44,756 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [146027611] [2021-11-25 20:02:44,756 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [146027611] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:02:44,756 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:02:44,756 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 20:02:44,756 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [249186801] [2021-11-25 20:02:44,757 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:02:44,757 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 20:02:44,757 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:02:44,758 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 20:02:44,758 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 20:02:44,759 INFO L87 Difference]: Start difference. First operand 4129 states and 5890 transitions. Second operand has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2021-11-25 20:02:47,777 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:02:49,719 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 20:02:52,726 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 20:02:54,931 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 20:02:56,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:02:56,057 INFO L93 Difference]: Finished difference Result 4147 states and 5907 transitions. [2021-11-25 20:02:56,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 20:02:56,058 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 53 [2021-11-25 20:02:56,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:02:56,100 INFO L225 Difference]: With dead ends: 4147 [2021-11-25 20:02:56,100 INFO L226 Difference]: Without dead ends: 4145 [2021-11-25 20:02:56,104 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 20:02:56,105 INFO L933 BasicCegarLoop]: 4688 mSDtfsCounter, 4727 mSDsluCounter, 6374 mSDsCounter, 0 mSdLazyCounter, 1218 mSolverCounterSat, 0 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4738 SdHoareTripleChecker+Valid, 10385 SdHoareTripleChecker+Invalid, 1221 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1218 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.0s IncrementalHoareTripleChecker+Time [2021-11-25 20:02:56,106 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4738 Valid, 10385 Invalid, 1221 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1218 Invalid, 3 Unknown, 0 Unchecked, 11.0s Time] [2021-11-25 20:02:56,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4145 states. [2021-11-25 20:02:56,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4145 to 4127. [2021-11-25 20:02:56,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4127 states, 2357 states have (on average 1.305897327110734) internal successors, (3078), 2537 states have internal predecessors, (3078), 1406 states have call successors, (1406), 336 states have call predecessors, (1406), 335 states have return successors, (1404), 1372 states have call predecessors, (1404), 1404 states have call successors, (1404) [2021-11-25 20:02:56,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4127 states to 4127 states and 5888 transitions. [2021-11-25 20:02:56,403 INFO L78 Accepts]: Start accepts. Automaton has 4127 states and 5888 transitions. Word has length 53 [2021-11-25 20:02:56,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:02:56,404 INFO L470 AbstractCegarLoop]: Abstraction has 4127 states and 5888 transitions. [2021-11-25 20:02:56,404 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2021-11-25 20:02:56,404 INFO L276 IsEmpty]: Start isEmpty. Operand 4127 states and 5888 transitions. [2021-11-25 20:02:56,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-11-25 20:02:56,406 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:02:56,406 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-11-25 20:02:56,406 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-25 20:02:56,407 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_linux_drivers_base_class_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-25 20:02:56,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:02:56,407 INFO L85 PathProgramCache]: Analyzing trace with hash 2025891630, now seen corresponding path program 1 times [2021-11-25 20:02:56,408 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:02:56,408 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [708527284] [2021-11-25 20:02:56,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:02:56,408 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:02:56,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:02:56,904 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-25 20:02:56,904 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:02:56,904 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [708527284] [2021-11-25 20:02:56,904 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [708527284] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:02:56,905 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:02:56,905 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 20:02:56,905 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [138814787] [2021-11-25 20:02:56,905 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:02:56,906 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 20:02:56,906 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:02:56,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 20:02:56,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 20:02:56,907 INFO L87 Difference]: Start difference. First operand 4127 states and 5888 transitions. Second operand has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2021-11-25 20:02:59,389 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 20:03:01,989 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:03:04,566 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 20:03:06,944 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 20:03:07,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:03:07,974 INFO L93 Difference]: Finished difference Result 4154 states and 5913 transitions. [2021-11-25 20:03:07,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 20:03:07,974 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 58 [2021-11-25 20:03:07,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:03:08,013 INFO L225 Difference]: With dead ends: 4154 [2021-11-25 20:03:08,013 INFO L226 Difference]: Without dead ends: 4152 [2021-11-25 20:03:08,017 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 20:03:08,018 INFO L933 BasicCegarLoop]: 4686 mSDtfsCounter, 4688 mSDsluCounter, 6404 mSDsCounter, 0 mSdLazyCounter, 1229 mSolverCounterSat, 0 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4708 SdHoareTripleChecker+Valid, 10403 SdHoareTripleChecker+Invalid, 1233 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1229 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.8s IncrementalHoareTripleChecker+Time [2021-11-25 20:03:08,018 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4708 Valid, 10403 Invalid, 1233 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1229 Invalid, 4 Unknown, 0 Unchecked, 10.8s Time] [2021-11-25 20:03:08,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4152 states. [2021-11-25 20:03:08,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4152 to 4131. [2021-11-25 20:03:08,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4131 states, 2359 states have (on average 1.305214073760068) internal successors, (3079), 2538 states have internal predecessors, (3079), 1406 states have call successors, (1406), 339 states have call predecessors, (1406), 338 states have return successors, (1404), 1372 states have call predecessors, (1404), 1404 states have call successors, (1404) [2021-11-25 20:03:08,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4131 states to 4131 states and 5889 transitions. [2021-11-25 20:03:08,316 INFO L78 Accepts]: Start accepts. Automaton has 4131 states and 5889 transitions. Word has length 58 [2021-11-25 20:03:08,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:03:08,316 INFO L470 AbstractCegarLoop]: Abstraction has 4131 states and 5889 transitions. [2021-11-25 20:03:08,317 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2021-11-25 20:03:08,317 INFO L276 IsEmpty]: Start isEmpty. Operand 4131 states and 5889 transitions. [2021-11-25 20:03:08,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-11-25 20:03:08,321 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:03:08,321 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-11-25 20:03:08,321 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-25 20:03:08,321 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_linux_fs_char_dev_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-25 20:03:08,322 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:03:08,323 INFO L85 PathProgramCache]: Analyzing trace with hash -1189215320, now seen corresponding path program 1 times [2021-11-25 20:03:08,323 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:03:08,323 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [374510851] [2021-11-25 20:03:08,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:03:08,323 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:03:08,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:03:08,672 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-25 20:03:08,673 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:03:08,673 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [374510851] [2021-11-25 20:03:08,673 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [374510851] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:03:08,673 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:03:08,673 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 20:03:08,673 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1408102031] [2021-11-25 20:03:08,673 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:03:08,674 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 20:03:08,674 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:03:08,674 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 20:03:08,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 20:03:08,674 INFO L87 Difference]: Start difference. First operand 4131 states and 5889 transitions. Second operand has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-11-25 20:03:11,152 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 20:03:13,731 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:03:16,295 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 20:03:18,666 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 20:03:19,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:03:19,639 INFO L93 Difference]: Finished difference Result 4149 states and 5906 transitions. [2021-11-25 20:03:19,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 20:03:19,640 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 63 [2021-11-25 20:03:19,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:03:19,682 INFO L225 Difference]: With dead ends: 4149 [2021-11-25 20:03:19,682 INFO L226 Difference]: Without dead ends: 4147 [2021-11-25 20:03:19,686 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 20:03:19,688 INFO L933 BasicCegarLoop]: 4684 mSDtfsCounter, 4714 mSDsluCounter, 6369 mSDsCounter, 0 mSdLazyCounter, 1216 mSolverCounterSat, 0 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4731 SdHoareTripleChecker+Valid, 10377 SdHoareTripleChecker+Invalid, 1220 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1216 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.7s IncrementalHoareTripleChecker+Time [2021-11-25 20:03:19,689 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4731 Valid, 10377 Invalid, 1220 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1216 Invalid, 4 Unknown, 0 Unchecked, 10.7s Time] [2021-11-25 20:03:19,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4147 states. [2021-11-25 20:03:20,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4147 to 4129. [2021-11-25 20:03:20,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4129 states, 2358 states have (on average 1.3049194232400338) internal successors, (3077), 2536 states have internal predecessors, (3077), 1406 states have call successors, (1406), 339 states have call predecessors, (1406), 338 states have return successors, (1404), 1372 states have call predecessors, (1404), 1404 states have call successors, (1404) [2021-11-25 20:03:20,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4129 states to 4129 states and 5887 transitions. [2021-11-25 20:03:20,086 INFO L78 Accepts]: Start accepts. Automaton has 4129 states and 5887 transitions. Word has length 63 [2021-11-25 20:03:20,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:03:20,087 INFO L470 AbstractCegarLoop]: Abstraction has 4129 states and 5887 transitions. [2021-11-25 20:03:20,087 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-11-25 20:03:20,088 INFO L276 IsEmpty]: Start isEmpty. Operand 4129 states and 5887 transitions. [2021-11-25 20:03:20,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-11-25 20:03:20,089 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:03:20,090 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-11-25 20:03:20,090 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-25 20:03:20,090 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-25 20:03:20,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:03:20,091 INFO L85 PathProgramCache]: Analyzing trace with hash -1694009057, now seen corresponding path program 1 times [2021-11-25 20:03:20,091 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:03:20,091 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [639268089] [2021-11-25 20:03:20,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:03:20,092 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:03:20,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:03:20,367 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-25 20:03:20,367 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:03:20,368 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [639268089] [2021-11-25 20:03:20,368 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [639268089] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:03:20,368 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:03:20,368 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 20:03:20,368 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [905342906] [2021-11-25 20:03:20,369 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:03:20,369 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 20:03:20,370 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:03:20,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 20:03:20,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 20:03:20,371 INFO L87 Difference]: Start difference. First operand 4129 states and 5887 transitions. Second operand has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2021-11-25 20:03:23,645 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:03:26,153 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:03:28,263 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:03:30,766 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 20:03:33,684 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 20:03:36,200 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 20:03:38,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:03:38,832 INFO L93 Difference]: Finished difference Result 8247 states and 11764 transitions. [2021-11-25 20:03:38,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-25 20:03:38,834 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 68 [2021-11-25 20:03:38,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:03:38,921 INFO L225 Difference]: With dead ends: 8247 [2021-11-25 20:03:38,921 INFO L226 Difference]: Without dead ends: 8245 [2021-11-25 20:03:38,928 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 20:03:38,929 INFO L933 BasicCegarLoop]: 5408 mSDtfsCounter, 4758 mSDsluCounter, 10726 mSDsCounter, 0 mSdLazyCounter, 1594 mSolverCounterSat, 1 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4766 SdHoareTripleChecker+Valid, 15075 SdHoareTripleChecker+Invalid, 1600 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1594 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.9s IncrementalHoareTripleChecker+Time [2021-11-25 20:03:38,930 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4766 Valid, 15075 Invalid, 1600 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 1594 Invalid, 5 Unknown, 0 Unchecked, 17.9s Time] [2021-11-25 20:03:38,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8245 states. [2021-11-25 20:03:39,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8245 to 8113. [2021-11-25 20:03:39,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8113 states, 4641 states have (on average 1.3063994828700711) internal successors, (6063), 4972 states have internal predecessors, (6063), 2782 states have call successors, (2782), 664 states have call predecessors, (2782), 663 states have return successors, (2786), 2714 states have call predecessors, (2786), 2780 states have call successors, (2786) [2021-11-25 20:03:39,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8113 states to 8113 states and 11631 transitions. [2021-11-25 20:03:39,749 INFO L78 Accepts]: Start accepts. Automaton has 8113 states and 11631 transitions. Word has length 68 [2021-11-25 20:03:39,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:03:39,750 INFO L470 AbstractCegarLoop]: Abstraction has 8113 states and 11631 transitions. [2021-11-25 20:03:39,751 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2021-11-25 20:03:39,751 INFO L276 IsEmpty]: Start isEmpty. Operand 8113 states and 11631 transitions. [2021-11-25 20:03:39,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2021-11-25 20:03:39,754 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:03:39,754 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:03:39,755 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-25 20:03:39,755 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_linux_kernel_locking_rwlock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-25 20:03:39,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:03:39,756 INFO L85 PathProgramCache]: Analyzing trace with hash 1440598843, now seen corresponding path program 1 times [2021-11-25 20:03:39,757 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:03:39,757 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1388609517] [2021-11-25 20:03:39,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:03:39,757 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:03:39,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:03:40,079 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-25 20:03:40,080 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:03:40,080 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1388609517] [2021-11-25 20:03:40,080 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1388609517] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:03:40,080 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:03:40,080 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 20:03:40,081 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1319756355] [2021-11-25 20:03:40,081 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:03:40,082 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 20:03:40,082 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:03:40,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 20:03:40,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 20:03:40,083 INFO L87 Difference]: Start difference. First operand 8113 states and 11631 transitions. Second operand has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-11-25 20:03:42,535 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 20:03:45,138 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:03:47,695 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 20:03:50,615 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 20:03:51,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:03:51,299 INFO L93 Difference]: Finished difference Result 8119 states and 11644 transitions. [2021-11-25 20:03:51,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 20:03:51,312 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 73 [2021-11-25 20:03:51,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:03:51,364 INFO L225 Difference]: With dead ends: 8119 [2021-11-25 20:03:51,364 INFO L226 Difference]: Without dead ends: 8117 [2021-11-25 20:03:51,370 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 20:03:51,371 INFO L933 BasicCegarLoop]: 4260 mSDtfsCounter, 4728 mSDsluCounter, 4824 mSDsCounter, 0 mSdLazyCounter, 1071 mSolverCounterSat, 0 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4741 SdHoareTripleChecker+Valid, 8543 SdHoareTripleChecker+Invalid, 1075 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1071 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.9s IncrementalHoareTripleChecker+Time [2021-11-25 20:03:51,372 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4741 Valid, 8543 Invalid, 1075 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1071 Invalid, 4 Unknown, 0 Unchecked, 10.9s Time] [2021-11-25 20:03:51,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8117 states. [2021-11-25 20:03:52,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8117 to 8111. [2021-11-25 20:03:52,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8111 states, 4640 states have (on average 1.30625) internal successors, (6061), 4970 states have internal predecessors, (6061), 2782 states have call successors, (2782), 664 states have call predecessors, (2782), 663 states have return successors, (2786), 2714 states have call predecessors, (2786), 2780 states have call successors, (2786) [2021-11-25 20:03:52,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8111 states to 8111 states and 11629 transitions. [2021-11-25 20:03:52,112 INFO L78 Accepts]: Start accepts. Automaton has 8111 states and 11629 transitions. Word has length 73 [2021-11-25 20:03:52,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:03:52,114 INFO L470 AbstractCegarLoop]: Abstraction has 8111 states and 11629 transitions. [2021-11-25 20:03:52,114 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-11-25 20:03:52,115 INFO L276 IsEmpty]: Start isEmpty. Operand 8111 states and 11629 transitions. [2021-11-25 20:03:52,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2021-11-25 20:03:52,117 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:03:52,117 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-11-25 20:03:52,117 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-25 20:03:52,117 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_linux_kernel_locking_rwlock_check_final_stateErr1ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-25 20:03:52,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:03:52,119 INFO L85 PathProgramCache]: Analyzing trace with hash 1436307038, now seen corresponding path program 1 times [2021-11-25 20:03:52,119 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:03:52,119 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1125711134] [2021-11-25 20:03:52,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:03:52,120 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:03:52,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:03:52,367 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-25 20:03:52,367 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:03:52,367 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1125711134] [2021-11-25 20:03:52,367 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1125711134] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:03:52,368 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:03:52,368 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 20:03:52,368 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1428826039] [2021-11-25 20:03:52,368 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:03:52,370 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 20:03:52,370 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:03:52,371 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 20:03:52,371 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 20:03:52,371 INFO L87 Difference]: Start difference. First operand 8111 states and 11629 transitions. Second operand has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-11-25 20:03:54,964 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 20:03:57,532 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:04:00,093 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 20:04:02,748 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 20:04:03,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:04:03,322 INFO L93 Difference]: Finished difference Result 8111 states and 11629 transitions. [2021-11-25 20:04:03,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 20:04:03,324 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 75 [2021-11-25 20:04:03,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:04:03,358 INFO L225 Difference]: With dead ends: 8111 [2021-11-25 20:04:03,359 INFO L226 Difference]: Without dead ends: 8109 [2021-11-25 20:04:03,364 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 20:04:03,365 INFO L933 BasicCegarLoop]: 4258 mSDtfsCounter, 4749 mSDsluCounter, 4792 mSDsCounter, 0 mSdLazyCounter, 1057 mSolverCounterSat, 0 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4759 SdHoareTripleChecker+Valid, 8521 SdHoareTripleChecker+Invalid, 1061 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1057 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.6s IncrementalHoareTripleChecker+Time [2021-11-25 20:04:03,365 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4759 Valid, 8521 Invalid, 1061 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1057 Invalid, 4 Unknown, 0 Unchecked, 10.6s Time] [2021-11-25 20:04:03,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8109 states. [2021-11-25 20:04:03,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8109 to 8109. [2021-11-25 20:04:03,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8109 states, 4639 states have (on average 1.306100452683768) internal successors, (6059), 4968 states have internal predecessors, (6059), 2782 states have call successors, (2782), 664 states have call predecessors, (2782), 663 states have return successors, (2786), 2714 states have call predecessors, (2786), 2780 states have call successors, (2786) [2021-11-25 20:04:04,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8109 states to 8109 states and 11627 transitions. [2021-11-25 20:04:04,005 INFO L78 Accepts]: Start accepts. Automaton has 8109 states and 11627 transitions. Word has length 75 [2021-11-25 20:04:04,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:04:04,006 INFO L470 AbstractCegarLoop]: Abstraction has 8109 states and 11627 transitions. [2021-11-25 20:04:04,006 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-11-25 20:04:04,006 INFO L276 IsEmpty]: Start isEmpty. Operand 8109 states and 11627 transitions. [2021-11-25 20:04:04,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2021-11-25 20:04:04,013 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:04:04,013 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-11-25 20:04:04,013 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-25 20:04:04,014 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_linux_kernel_module_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-25 20:04:04,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:04:04,014 INFO L85 PathProgramCache]: Analyzing trace with hash 103793524, now seen corresponding path program 1 times [2021-11-25 20:04:04,014 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:04:04,014 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [49361967] [2021-11-25 20:04:04,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:04:04,015 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:04:04,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:04:04,194 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-25 20:04:04,194 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:04:04,195 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [49361967] [2021-11-25 20:04:04,195 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [49361967] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:04:04,195 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:04:04,195 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 20:04:04,195 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [400912776] [2021-11-25 20:04:04,195 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:04:04,196 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 20:04:04,196 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:04:04,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 20:04:04,197 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 20:04:04,197 INFO L87 Difference]: Start difference. First operand 8109 states and 11627 transitions. Second operand has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2021-11-25 20:04:06,615 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 20:04:09,083 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:04:11,535 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 20:04:14,506 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 20:04:15,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:04:15,156 INFO L93 Difference]: Finished difference Result 8115 states and 11640 transitions. [2021-11-25 20:04:15,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 20:04:15,158 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 80 [2021-11-25 20:04:15,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:04:15,199 INFO L225 Difference]: With dead ends: 8115 [2021-11-25 20:04:15,200 INFO L226 Difference]: Without dead ends: 8113 [2021-11-25 20:04:15,205 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 20:04:15,206 INFO L933 BasicCegarLoop]: 4256 mSDtfsCounter, 4719 mSDsluCounter, 4824 mSDsCounter, 0 mSdLazyCounter, 1071 mSolverCounterSat, 0 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4732 SdHoareTripleChecker+Valid, 8539 SdHoareTripleChecker+Invalid, 1075 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1071 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.6s IncrementalHoareTripleChecker+Time [2021-11-25 20:04:15,207 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4732 Valid, 8539 Invalid, 1075 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1071 Invalid, 4 Unknown, 0 Unchecked, 10.6s Time] [2021-11-25 20:04:15,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8113 states. [2021-11-25 20:04:15,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8113 to 8107. [2021-11-25 20:04:15,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8107 states, 4638 states have (on average 1.3059508408796896) internal successors, (6057), 4966 states have internal predecessors, (6057), 2782 states have call successors, (2782), 664 states have call predecessors, (2782), 663 states have return successors, (2786), 2714 states have call predecessors, (2786), 2780 states have call successors, (2786) [2021-11-25 20:04:15,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8107 states to 8107 states and 11625 transitions. [2021-11-25 20:04:15,878 INFO L78 Accepts]: Start accepts. Automaton has 8107 states and 11625 transitions. Word has length 80 [2021-11-25 20:04:15,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:04:15,878 INFO L470 AbstractCegarLoop]: Abstraction has 8107 states and 11625 transitions. [2021-11-25 20:04:15,878 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2021-11-25 20:04:15,879 INFO L276 IsEmpty]: Start isEmpty. Operand 8107 states and 11625 transitions. [2021-11-25 20:04:15,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2021-11-25 20:04:15,881 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:04:15,882 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:04:15,882 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-25 20:04:15,882 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_linux_kernel_rcu_update_lock_bh_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-25 20:04:15,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:04:15,883 INFO L85 PathProgramCache]: Analyzing trace with hash -592117768, now seen corresponding path program 1 times [2021-11-25 20:04:15,883 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:04:15,883 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1211355902] [2021-11-25 20:04:15,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:04:15,883 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:04:15,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:04:16,083 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-25 20:04:16,083 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:04:16,083 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1211355902] [2021-11-25 20:04:16,083 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1211355902] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:04:16,083 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:04:16,084 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 20:04:16,084 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [319134985] [2021-11-25 20:04:16,084 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:04:16,084 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 20:04:16,085 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:04:16,085 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 20:04:16,086 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 20:04:16,086 INFO L87 Difference]: Start difference. First operand 8107 states and 11625 transitions. Second operand has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-11-25 20:04:19,018 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:04:21,244 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.81s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 20:04:24,082 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 20:04:26,270 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 20:04:27,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:04:27,081 INFO L93 Difference]: Finished difference Result 8135 states and 11662 transitions. [2021-11-25 20:04:27,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 20:04:27,082 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 85 [2021-11-25 20:04:27,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:04:27,119 INFO L225 Difference]: With dead ends: 8135 [2021-11-25 20:04:27,120 INFO L226 Difference]: Without dead ends: 8133 [2021-11-25 20:04:27,125 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 20:04:27,126 INFO L933 BasicCegarLoop]: 4675 mSDtfsCounter, 4708 mSDsluCounter, 6361 mSDsCounter, 0 mSdLazyCounter, 1217 mSolverCounterSat, 0 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4722 SdHoareTripleChecker+Valid, 10361 SdHoareTripleChecker+Invalid, 1220 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1217 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.6s IncrementalHoareTripleChecker+Time [2021-11-25 20:04:27,126 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4722 Valid, 10361 Invalid, 1220 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1217 Invalid, 3 Unknown, 0 Unchecked, 10.6s Time] [2021-11-25 20:04:27,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8133 states. [2021-11-25 20:04:27,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8133 to 8105. [2021-11-25 20:04:27,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8105 states, 4637 states have (on average 1.3058011645460428) internal successors, (6055), 4964 states have internal predecessors, (6055), 2782 states have call successors, (2782), 664 states have call predecessors, (2782), 663 states have return successors, (2786), 2714 states have call predecessors, (2786), 2780 states have call successors, (2786) [2021-11-25 20:04:27,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8105 states to 8105 states and 11623 transitions. [2021-11-25 20:04:27,826 INFO L78 Accepts]: Start accepts. Automaton has 8105 states and 11623 transitions. Word has length 85 [2021-11-25 20:04:27,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:04:27,826 INFO L470 AbstractCegarLoop]: Abstraction has 8105 states and 11623 transitions. [2021-11-25 20:04:27,827 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-11-25 20:04:27,827 INFO L276 IsEmpty]: Start isEmpty. Operand 8105 states and 11623 transitions. [2021-11-25 20:04:27,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-11-25 20:04:27,829 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:04:27,829 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-11-25 20:04:27,829 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-25 20:04:27,829 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_linux_kernel_rcu_update_lock_sched_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-25 20:04:27,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:04:27,830 INFO L85 PathProgramCache]: Analyzing trace with hash -1747711606, now seen corresponding path program 1 times [2021-11-25 20:04:27,830 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:04:27,830 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [170769089] [2021-11-25 20:04:27,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:04:27,831 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:04:27,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:04:28,002 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-25 20:04:28,002 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:04:28,002 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [170769089] [2021-11-25 20:04:28,002 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [170769089] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:04:28,002 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:04:28,003 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 20:04:28,003 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [513890773] [2021-11-25 20:04:28,003 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:04:28,003 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 20:04:28,004 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:04:28,004 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 20:04:28,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 20:04:28,004 INFO L87 Difference]: Start difference. First operand 8105 states and 11623 transitions. Second operand has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2021-11-25 20:04:31,130 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:04:33,653 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 20:04:35,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:04:35,206 INFO L93 Difference]: Finished difference Result 8105 states and 11623 transitions. [2021-11-25 20:04:35,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 20:04:35,208 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 90 [2021-11-25 20:04:35,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:04:35,241 INFO L225 Difference]: With dead ends: 8105 [2021-11-25 20:04:35,241 INFO L226 Difference]: Without dead ends: 8103 [2021-11-25 20:04:35,247 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 20:04:35,247 INFO L933 BasicCegarLoop]: 4252 mSDtfsCounter, 4742 mSDsluCounter, 4785 mSDsCounter, 0 mSdLazyCounter, 1059 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4752 SdHoareTripleChecker+Valid, 8509 SdHoareTripleChecker+Invalid, 1061 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1059 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.9s IncrementalHoareTripleChecker+Time [2021-11-25 20:04:35,248 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4752 Valid, 8509 Invalid, 1061 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1059 Invalid, 2 Unknown, 0 Unchecked, 6.9s Time] [2021-11-25 20:04:35,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8103 states. [2021-11-25 20:04:35,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8103 to 8103. [2021-11-25 20:04:35,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8103 states, 4636 states have (on average 1.30565142364107) internal successors, (6053), 4962 states have internal predecessors, (6053), 2782 states have call successors, (2782), 664 states have call predecessors, (2782), 663 states have return successors, (2786), 2714 states have call predecessors, (2786), 2780 states have call successors, (2786) [2021-11-25 20:04:35,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8103 states to 8103 states and 11621 transitions. [2021-11-25 20:04:35,877 INFO L78 Accepts]: Start accepts. Automaton has 8103 states and 11621 transitions. Word has length 90 [2021-11-25 20:04:35,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:04:35,878 INFO L470 AbstractCegarLoop]: Abstraction has 8103 states and 11621 transitions. [2021-11-25 20:04:35,878 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2021-11-25 20:04:35,878 INFO L276 IsEmpty]: Start isEmpty. Operand 8103 states and 11621 transitions. [2021-11-25 20:04:35,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2021-11-25 20:04:35,880 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:04:35,881 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-11-25 20:04:35,881 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-11-25 20:04:35,881 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-25 20:04:35,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:04:35,882 INFO L85 PathProgramCache]: Analyzing trace with hash -74329135, now seen corresponding path program 1 times [2021-11-25 20:04:35,882 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:04:35,882 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [437473306] [2021-11-25 20:04:35,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:04:35,882 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:04:35,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:04:36,060 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-25 20:04:36,061 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:04:36,061 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [437473306] [2021-11-25 20:04:36,061 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [437473306] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:04:36,061 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:04:36,061 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 20:04:36,061 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1847140655] [2021-11-25 20:04:36,062 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:04:36,062 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 20:04:36,062 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:04:36,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 20:04:36,063 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 20:04:36,063 INFO L87 Difference]: Start difference. First operand 8103 states and 11621 transitions. Second operand has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-11-25 20:04:38,558 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 20:04:41,305 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:04:43,733 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 20:04:47,133 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.88s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 20:04:47,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:04:47,702 INFO L93 Difference]: Finished difference Result 11886 states and 17044 transitions. [2021-11-25 20:04:47,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-25 20:04:47,703 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 95 [2021-11-25 20:04:47,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:04:47,850 INFO L225 Difference]: With dead ends: 11886 [2021-11-25 20:04:47,850 INFO L226 Difference]: Without dead ends: 11884 [2021-11-25 20:04:47,855 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 20:04:47,856 INFO L933 BasicCegarLoop]: 5555 mSDtfsCounter, 4259 mSDsluCounter, 10942 mSDsCounter, 0 mSdLazyCounter, 1692 mSolverCounterSat, 1 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4267 SdHoareTripleChecker+Valid, 15396 SdHoareTripleChecker+Invalid, 1696 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1692 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.1s IncrementalHoareTripleChecker+Time [2021-11-25 20:04:47,856 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4267 Valid, 15396 Invalid, 1696 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1692 Invalid, 3 Unknown, 0 Unchecked, 11.1s Time] [2021-11-25 20:04:47,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11884 states. [2021-11-25 20:04:48,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11884 to 11785. [2021-11-25 20:04:48,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11785 states, 6742 states have (on average 1.305843963215663) internal successors, (8804), 7214 states have internal predecessors, (8804), 4048 states have call successors, (4048), 976 states have call predecessors, (4048), 973 states have return successors, (4087), 3937 states have call predecessors, (4087), 4046 states have call successors, (4087) [2021-11-25 20:04:48,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11785 states to 11785 states and 16939 transitions. [2021-11-25 20:04:48,607 INFO L78 Accepts]: Start accepts. Automaton has 11785 states and 16939 transitions. Word has length 95 [2021-11-25 20:04:48,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:04:48,608 INFO L470 AbstractCegarLoop]: Abstraction has 11785 states and 16939 transitions. [2021-11-25 20:04:48,608 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-11-25 20:04:48,608 INFO L276 IsEmpty]: Start isEmpty. Operand 11785 states and 16939 transitions. [2021-11-25 20:04:48,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2021-11-25 20:04:48,610 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:04:48,611 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-11-25 20:04:48,611 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-11-25 20:04:48,611 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_linux_kernel_rcu_srcu_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-25 20:04:48,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:04:48,612 INFO L85 PathProgramCache]: Analyzing trace with hash -995982564, now seen corresponding path program 1 times [2021-11-25 20:04:48,612 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:04:48,612 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1423432245] [2021-11-25 20:04:48,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:04:48,612 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:04:48,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:04:48,782 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-25 20:04:48,782 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:04:48,783 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1423432245] [2021-11-25 20:04:48,783 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1423432245] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:04:48,783 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:04:48,783 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 20:04:48,783 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [412323093] [2021-11-25 20:04:48,784 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:04:48,784 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 20:04:48,784 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:04:48,785 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 20:04:48,785 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 20:04:48,785 INFO L87 Difference]: Start difference. First operand 11785 states and 16939 transitions. Second operand has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-11-25 20:04:51,256 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 20:04:53,738 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:04:55,853 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 20:04:58,335 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 20:05:00,497 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 [] [2021-11-25 20:05:01,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:05:01,366 INFO L93 Difference]: Finished difference Result 11826 states and 17010 transitions. [2021-11-25 20:05:01,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 20:05:01,367 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 100 [2021-11-25 20:05:01,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:05:01,406 INFO L225 Difference]: With dead ends: 11826 [2021-11-25 20:05:01,407 INFO L226 Difference]: Without dead ends: 11824 [2021-11-25 20:05:01,414 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 20:05:01,414 INFO L933 BasicCegarLoop]: 4695 mSDtfsCounter, 4672 mSDsluCounter, 6418 mSDsCounter, 0 mSdLazyCounter, 1237 mSolverCounterSat, 0 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4689 SdHoareTripleChecker+Valid, 10423 SdHoareTripleChecker+Invalid, 1241 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1237 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.0s IncrementalHoareTripleChecker+Time [2021-11-25 20:05:01,415 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4689 Valid, 10423 Invalid, 1241 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1237 Invalid, 4 Unknown, 0 Unchecked, 12.0s Time] [2021-11-25 20:05:01,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11824 states. [2021-11-25 20:05:02,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11824 to 11783. [2021-11-25 20:05:02,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11783 states, 6741 states have (on average 1.3057409879839785) internal successors, (8802), 7212 states have internal predecessors, (8802), 4048 states have call successors, (4048), 976 states have call predecessors, (4048), 973 states have return successors, (4087), 3937 states have call predecessors, (4087), 4046 states have call successors, (4087) [2021-11-25 20:05:02,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11783 states to 11783 states and 16937 transitions. [2021-11-25 20:05:02,192 INFO L78 Accepts]: Start accepts. Automaton has 11783 states and 16937 transitions. Word has length 100 [2021-11-25 20:05:02,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:05:02,192 INFO L470 AbstractCegarLoop]: Abstraction has 11783 states and 16937 transitions. [2021-11-25 20:05:02,193 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-11-25 20:05:02,193 INFO L276 IsEmpty]: Start isEmpty. Operand 11783 states and 16937 transitions. [2021-11-25 20:05:02,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-11-25 20:05:02,195 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:05:02,195 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:05:02,195 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-11-25 20:05:02,195 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_linux_lib_idr_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-25 20:05:02,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:05:02,196 INFO L85 PathProgramCache]: Analyzing trace with hash -144471570, now seen corresponding path program 1 times [2021-11-25 20:05:02,196 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:05:02,197 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [333476779] [2021-11-25 20:05:02,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:05:02,197 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:05:02,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:05:02,391 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-25 20:05:02,392 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:05:02,392 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [333476779] [2021-11-25 20:05:02,392 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [333476779] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:05:02,392 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:05:02,392 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 20:05:02,392 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1655350661] [2021-11-25 20:05:02,393 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:05:02,393 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 20:05:02,393 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:05:02,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 20:05:02,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 20:05:02,394 INFO L87 Difference]: Start difference. First operand 11783 states and 16937 transitions. Second operand has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-11-25 20:05:04,930 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 [] [2021-11-25 20:05:07,407 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:05:09,893 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 20:05:12,247 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 20:05:14,913 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 20:05:15,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:05:15,624 INFO L93 Difference]: Finished difference Result 11798 states and 16971 transitions. [2021-11-25 20:05:15,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 20:05:15,626 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 105 [2021-11-25 20:05:15,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:05:15,666 INFO L225 Difference]: With dead ends: 11798 [2021-11-25 20:05:15,666 INFO L226 Difference]: Without dead ends: 11796 [2021-11-25 20:05:15,675 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 20:05:15,675 INFO L933 BasicCegarLoop]: 4248 mSDtfsCounter, 4705 mSDsluCounter, 4817 mSDsCounter, 0 mSdLazyCounter, 1069 mSolverCounterSat, 0 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4721 SdHoareTripleChecker+Valid, 8525 SdHoareTripleChecker+Invalid, 1074 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1069 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.6s IncrementalHoareTripleChecker+Time [2021-11-25 20:05:15,676 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4721 Valid, 8525 Invalid, 1074 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1069 Invalid, 5 Unknown, 0 Unchecked, 12.6s Time] [2021-11-25 20:05:15,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11796 states. [2021-11-25 20:05:16,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11796 to 11781. [2021-11-25 20:05:16,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11781 states, 6740 states have (on average 1.3056379821958457) internal successors, (8800), 7210 states have internal predecessors, (8800), 4048 states have call successors, (4048), 976 states have call predecessors, (4048), 973 states have return successors, (4087), 3937 states have call predecessors, (4087), 4046 states have call successors, (4087) [2021-11-25 20:05:16,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11781 states to 11781 states and 16935 transitions. [2021-11-25 20:05:16,530 INFO L78 Accepts]: Start accepts. Automaton has 11781 states and 16935 transitions. Word has length 105 [2021-11-25 20:05:16,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:05:16,530 INFO L470 AbstractCegarLoop]: Abstraction has 11781 states and 16935 transitions. [2021-11-25 20:05:16,530 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-11-25 20:05:16,530 INFO L276 IsEmpty]: Start isEmpty. Operand 11781 states and 16935 transitions. [2021-11-25 20:05:16,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2021-11-25 20:05:16,532 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:05:16,533 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-11-25 20:05:16,533 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-11-25 20:05:16,533 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_linux_mmc_sdio_func_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-25 20:05:16,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:05:16,534 INFO L85 PathProgramCache]: Analyzing trace with hash 1909152623, now seen corresponding path program 1 times [2021-11-25 20:05:16,534 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:05:16,534 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [183877760] [2021-11-25 20:05:16,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:05:16,534 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:05:16,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:05:16,728 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-25 20:05:16,728 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:05:16,728 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [183877760] [2021-11-25 20:05:16,730 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [183877760] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:05:16,731 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:05:16,731 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 20:05:16,731 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1445569621] [2021-11-25 20:05:16,731 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:05:16,732 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 20:05:16,732 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:05:16,732 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 20:05:16,732 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 20:05:16,733 INFO L87 Difference]: Start difference. First operand 11781 states and 16935 transitions. Second operand has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-11-25 20:05:19,295 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 20:05:21,778 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:05:24,303 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 20:05:26,777 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 20:05:27,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:05:27,772 INFO L93 Difference]: Finished difference Result 11813 states and 16991 transitions. [2021-11-25 20:05:27,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 20:05:27,773 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 110 [2021-11-25 20:05:27,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:05:27,807 INFO L225 Difference]: With dead ends: 11813 [2021-11-25 20:05:27,807 INFO L226 Difference]: Without dead ends: 11811 [2021-11-25 20:05:27,811 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 20:05:27,812 INFO L933 BasicCegarLoop]: 4691 mSDtfsCounter, 4660 mSDsluCounter, 6413 mSDsCounter, 0 mSdLazyCounter, 1237 mSolverCounterSat, 0 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4680 SdHoareTripleChecker+Valid, 10413 SdHoareTripleChecker+Invalid, 1241 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1237 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.4s IncrementalHoareTripleChecker+Time [2021-11-25 20:05:27,812 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4680 Valid, 10413 Invalid, 1241 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1237 Invalid, 4 Unknown, 0 Unchecked, 10.4s Time] [2021-11-25 20:05:27,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11811 states. [2021-11-25 20:05:28,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11811 to 11779. [2021-11-25 20:05:28,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11779 states, 6739 states have (on average 1.3055349458376613) internal successors, (8798), 7208 states have internal predecessors, (8798), 4048 states have call successors, (4048), 976 states have call predecessors, (4048), 973 states have return successors, (4087), 3937 states have call predecessors, (4087), 4046 states have call successors, (4087) [2021-11-25 20:05:28,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11779 states to 11779 states and 16933 transitions. [2021-11-25 20:05:28,676 INFO L78 Accepts]: Start accepts. Automaton has 11779 states and 16933 transitions. Word has length 110 [2021-11-25 20:05:28,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:05:28,677 INFO L470 AbstractCegarLoop]: Abstraction has 11779 states and 16933 transitions. [2021-11-25 20:05:28,677 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-11-25 20:05:28,677 INFO L276 IsEmpty]: Start isEmpty. Operand 11779 states and 16933 transitions. [2021-11-25 20:05:28,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-11-25 20:05:28,680 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:05:28,680 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-11-25 20:05:28,680 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-11-25 20:05:28,681 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_linux_net_rtnetlink_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-25 20:05:28,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:05:28,681 INFO L85 PathProgramCache]: Analyzing trace with hash -648863455, now seen corresponding path program 1 times [2021-11-25 20:05:28,681 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:05:28,682 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [292410367] [2021-11-25 20:05:28,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:05:28,682 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:05:28,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:05:28,862 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-25 20:05:28,862 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:05:28,862 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [292410367] [2021-11-25 20:05:28,862 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [292410367] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:05:28,863 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:05:28,863 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 20:05:28,863 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1358515432] [2021-11-25 20:05:28,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:05:28,864 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 20:05:28,864 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:05:28,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 20:05:28,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 20:05:28,864 INFO L87 Difference]: Start difference. First operand 11779 states and 16933 transitions. Second operand has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2021-11-25 20:05:31,352 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 20:05:33,776 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:05:36,411 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 20:05:38,705 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 20:05:40,781 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.91s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 20:05:41,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:05:41,852 INFO L93 Difference]: Finished difference Result 11794 states and 16967 transitions. [2021-11-25 20:05:41,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 20:05:41,854 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 115 [2021-11-25 20:05:41,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:05:41,878 INFO L225 Difference]: With dead ends: 11794 [2021-11-25 20:05:41,878 INFO L226 Difference]: Without dead ends: 11792 [2021-11-25 20:05:41,881 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 20:05:41,881 INFO L933 BasicCegarLoop]: 4244 mSDtfsCounter, 4699 mSDsluCounter, 4813 mSDsCounter, 0 mSdLazyCounter, 1070 mSolverCounterSat, 0 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4715 SdHoareTripleChecker+Valid, 8517 SdHoareTripleChecker+Invalid, 1074 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1070 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.3s IncrementalHoareTripleChecker+Time [2021-11-25 20:05:41,881 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4715 Valid, 8517 Invalid, 1074 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1070 Invalid, 4 Unknown, 0 Unchecked, 12.3s Time] [2021-11-25 20:05:41,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11792 states. [2021-11-25 20:05:42,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11792 to 11777. [2021-11-25 20:05:42,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11777 states, 6738 states have (on average 1.3054318788958148) internal successors, (8796), 7206 states have internal predecessors, (8796), 4048 states have call successors, (4048), 976 states have call predecessors, (4048), 973 states have return successors, (4087), 3937 states have call predecessors, (4087), 4046 states have call successors, (4087) [2021-11-25 20:05:42,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11777 states to 11777 states and 16931 transitions. [2021-11-25 20:05:42,599 INFO L78 Accepts]: Start accepts. Automaton has 11777 states and 16931 transitions. Word has length 115 [2021-11-25 20:05:42,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:05:42,599 INFO L470 AbstractCegarLoop]: Abstraction has 11777 states and 16931 transitions. [2021-11-25 20:05:42,599 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2021-11-25 20:05:42,600 INFO L276 IsEmpty]: Start isEmpty. Operand 11777 states and 16931 transitions. [2021-11-25 20:05:42,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2021-11-25 20:05:42,603 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:05:42,603 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-11-25 20:05:42,603 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-11-25 20:05:42,603 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_linux_net_sock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-25 20:05:42,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:05:42,604 INFO L85 PathProgramCache]: Analyzing trace with hash 476637875, now seen corresponding path program 1 times [2021-11-25 20:05:42,604 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:05:42,604 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1299202210] [2021-11-25 20:05:42,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:05:42,605 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:05:42,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:05:42,774 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-25 20:05:42,774 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:05:42,774 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1299202210] [2021-11-25 20:05:42,775 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1299202210] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:05:42,775 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:05:42,775 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 20:05:42,775 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [277442452] [2021-11-25 20:05:42,775 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:05:42,776 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 20:05:42,776 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:05:42,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 20:05:42,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 20:05:42,777 INFO L87 Difference]: Start difference. First operand 11777 states and 16931 transitions. Second operand has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2021-11-25 20:05:45,269 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 20:05:47,767 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:05:50,291 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 20:05:52,740 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 [] [2021-11-25 20:05:53,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:05:53,724 INFO L93 Difference]: Finished difference Result 11809 states and 16987 transitions. [2021-11-25 20:05:53,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 20:05:53,725 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 120 [2021-11-25 20:05:53,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:05:53,754 INFO L225 Difference]: With dead ends: 11809 [2021-11-25 20:05:53,754 INFO L226 Difference]: Without dead ends: 11807 [2021-11-25 20:05:53,760 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 20:05:53,761 INFO L933 BasicCegarLoop]: 4687 mSDtfsCounter, 4654 mSDsluCounter, 6409 mSDsCounter, 0 mSdLazyCounter, 1237 mSolverCounterSat, 0 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4674 SdHoareTripleChecker+Valid, 10405 SdHoareTripleChecker+Invalid, 1241 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1237 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.3s IncrementalHoareTripleChecker+Time [2021-11-25 20:05:53,761 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4674 Valid, 10405 Invalid, 1241 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1237 Invalid, 4 Unknown, 0 Unchecked, 10.3s Time] [2021-11-25 20:05:53,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11807 states. [2021-11-25 20:05:54,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11807 to 11775. [2021-11-25 20:05:54,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11775 states, 6737 states have (on average 1.305328781356687) internal successors, (8794), 7204 states have internal predecessors, (8794), 4048 states have call successors, (4048), 976 states have call predecessors, (4048), 973 states have return successors, (4087), 3937 states have call predecessors, (4087), 4046 states have call successors, (4087) [2021-11-25 20:05:54,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11775 states to 11775 states and 16929 transitions. [2021-11-25 20:05:54,541 INFO L78 Accepts]: Start accepts. Automaton has 11775 states and 16929 transitions. Word has length 120 [2021-11-25 20:05:54,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:05:54,541 INFO L470 AbstractCegarLoop]: Abstraction has 11775 states and 16929 transitions. [2021-11-25 20:05:54,541 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2021-11-25 20:05:54,542 INFO L276 IsEmpty]: Start isEmpty. Operand 11775 states and 16929 transitions. [2021-11-25 20:05:54,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2021-11-25 20:05:54,544 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:05:54,545 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-11-25 20:05:54,545 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-11-25 20:05:54,545 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-25 20:05:54,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:05:54,546 INFO L85 PathProgramCache]: Analyzing trace with hash -2042178278, now seen corresponding path program 1 times [2021-11-25 20:05:54,546 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:05:54,546 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1065683585] [2021-11-25 20:05:54,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:05:54,546 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:05:54,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:05:54,712 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-25 20:05:54,712 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:05:54,712 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1065683585] [2021-11-25 20:05:54,712 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1065683585] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:05:54,712 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:05:54,713 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 20:05:54,713 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [496226722] [2021-11-25 20:05:54,713 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:05:54,713 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 20:05:54,714 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:05:54,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 20:05:54,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 20:05:54,714 INFO L87 Difference]: Start difference. First operand 11775 states and 16929 transitions. Second operand has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2021-11-25 20:05:57,129 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 [] [2021-11-25 20:05:59,594 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:06:02,238 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 20:06:04,851 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 [] [2021-11-25 20:06:05,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:06:05,833 INFO L93 Difference]: Finished difference Result 11807 states and 16985 transitions. [2021-11-25 20:06:05,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 20:06:05,838 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 125 [2021-11-25 20:06:05,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:06:05,878 INFO L225 Difference]: With dead ends: 11807 [2021-11-25 20:06:05,878 INFO L226 Difference]: Without dead ends: 11805 [2021-11-25 20:06:05,884 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 20:06:05,885 INFO L933 BasicCegarLoop]: 4685 mSDtfsCounter, 4651 mSDsluCounter, 6407 mSDsCounter, 0 mSdLazyCounter, 1237 mSolverCounterSat, 0 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4671 SdHoareTripleChecker+Valid, 10401 SdHoareTripleChecker+Invalid, 1241 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1237 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.5s IncrementalHoareTripleChecker+Time [2021-11-25 20:06:05,886 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4671 Valid, 10401 Invalid, 1241 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1237 Invalid, 4 Unknown, 0 Unchecked, 10.5s Time] [2021-11-25 20:06:05,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11805 states. [2021-11-25 20:06:06,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11805 to 11773. [2021-11-25 20:06:06,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11773 states, 6736 states have (on average 1.3052256532066508) internal successors, (8792), 7202 states have internal predecessors, (8792), 4048 states have call successors, (4048), 976 states have call predecessors, (4048), 973 states have return successors, (4087), 3937 states have call predecessors, (4087), 4046 states have call successors, (4087) [2021-11-25 20:06:06,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11773 states to 11773 states and 16927 transitions. [2021-11-25 20:06:06,661 INFO L78 Accepts]: Start accepts. Automaton has 11773 states and 16927 transitions. Word has length 125 [2021-11-25 20:06:06,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:06:06,662 INFO L470 AbstractCegarLoop]: Abstraction has 11773 states and 16927 transitions. [2021-11-25 20:06:06,662 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2021-11-25 20:06:06,662 INFO L276 IsEmpty]: Start isEmpty. Operand 11773 states and 16927 transitions. [2021-11-25 20:06:06,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2021-11-25 20:06:06,666 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:06:06,666 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:06:06,666 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-11-25 20:06:06,666 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-25 20:06:06,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:06:06,667 INFO L85 PathProgramCache]: Analyzing trace with hash 577236904, now seen corresponding path program 1 times [2021-11-25 20:06:06,667 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:06:06,667 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1008971075] [2021-11-25 20:06:06,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:06:06,667 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:06:06,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:06:06,852 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-25 20:06:06,852 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:06:06,852 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1008971075] [2021-11-25 20:06:06,853 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1008971075] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:06:06,853 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:06:06,853 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 20:06:06,853 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2037346921] [2021-11-25 20:06:06,853 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:06:06,854 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 20:06:06,854 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:06:06,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 20:06:06,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 20:06:06,855 INFO L87 Difference]: Start difference. First operand 11773 states and 16927 transitions. Second operand has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2021-11-25 20:06:10,129 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 20:06:13,005 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 20:06:13,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:06:13,899 INFO L93 Difference]: Finished difference Result 11773 states and 16927 transitions. [2021-11-25 20:06:13,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 20:06:13,901 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 130 [2021-11-25 20:06:13,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:06:13,932 INFO L225 Difference]: With dead ends: 11773 [2021-11-25 20:06:13,932 INFO L226 Difference]: Without dead ends: 11771 [2021-11-25 20:06:13,935 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 20:06:13,936 INFO L933 BasicCegarLoop]: 4238 mSDtfsCounter, 4729 mSDsluCounter, 4766 mSDsCounter, 0 mSdLazyCounter, 1058 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4737 SdHoareTripleChecker+Valid, 8476 SdHoareTripleChecker+Invalid, 1060 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1058 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2021-11-25 20:06:13,936 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4737 Valid, 8476 Invalid, 1060 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1058 Invalid, 2 Unknown, 0 Unchecked, 6.3s Time] [2021-11-25 20:06:13,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11771 states. [2021-11-25 20:06:14,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11771 to 11771. [2021-11-25 20:06:14,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11771 states, 6735 states have (on average 1.3051224944320712) internal successors, (8790), 7200 states have internal predecessors, (8790), 4048 states have call successors, (4048), 976 states have call predecessors, (4048), 973 states have return successors, (4087), 3937 states have call predecessors, (4087), 4046 states have call successors, (4087) [2021-11-25 20:06:14,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11771 states to 11771 states and 16925 transitions. [2021-11-25 20:06:14,708 INFO L78 Accepts]: Start accepts. Automaton has 11771 states and 16925 transitions. Word has length 130 [2021-11-25 20:06:14,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:06:14,709 INFO L470 AbstractCegarLoop]: Abstraction has 11771 states and 16925 transitions. [2021-11-25 20:06:14,709 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2021-11-25 20:06:14,709 INFO L276 IsEmpty]: Start isEmpty. Operand 11771 states and 16925 transitions. [2021-11-25 20:06:14,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2021-11-25 20:06:14,712 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:06:14,713 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-11-25 20:06:14,713 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-11-25 20:06:14,713 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ldv_linux_usb_urb_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-25 20:06:14,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:06:14,714 INFO L85 PathProgramCache]: Analyzing trace with hash 1429067957, now seen corresponding path program 1 times [2021-11-25 20:06:14,714 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:06:14,714 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1194990490] [2021-11-25 20:06:14,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:06:14,714 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:06:14,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:06:14,883 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-25 20:06:14,883 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:06:14,884 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1194990490] [2021-11-25 20:06:14,884 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1194990490] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:06:14,884 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:06:14,884 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 20:06:14,884 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [856330268] [2021-11-25 20:06:14,884 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:06:14,885 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 20:06:14,885 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:06:14,885 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 20:06:14,886 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 20:06:14,886 INFO L87 Difference]: Start difference. First operand 11771 states and 16925 transitions. Second operand has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2021-11-25 20:06:17,323 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 [] [2021-11-25 20:06:19,800 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:06:22,000 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.69s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 20:06:24,017 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 20:06:26,402 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 20:06:27,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:06:27,535 INFO L93 Difference]: Finished difference Result 11797 states and 16962 transitions. [2021-11-25 20:06:27,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 20:06:27,536 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 135 [2021-11-25 20:06:27,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:06:27,581 INFO L225 Difference]: With dead ends: 11797 [2021-11-25 20:06:27,581 INFO L226 Difference]: Without dead ends: 11632 [2021-11-25 20:06:27,589 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 20:06:27,589 INFO L933 BasicCegarLoop]: 4682 mSDtfsCounter, 4681 mSDsluCounter, 6373 mSDsCounter, 0 mSdLazyCounter, 1225 mSolverCounterSat, 0 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4690 SdHoareTripleChecker+Valid, 10373 SdHoareTripleChecker+Invalid, 1229 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1225 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.9s IncrementalHoareTripleChecker+Time [2021-11-25 20:06:27,590 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4690 Valid, 10373 Invalid, 1229 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1225 Invalid, 4 Unknown, 0 Unchecked, 11.9s Time] [2021-11-25 20:06:27,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11632 states. [2021-11-25 20:06:28,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11632 to 11606. [2021-11-25 20:06:28,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11606 states, 6649 states have (on average 1.3083170401564146) internal successors, (8699), 7112 states have internal predecessors, (8699), 3994 states have call successors, (3994), 952 states have call predecessors, (3994), 949 states have return successors, (4032), 3884 states have call predecessors, (4032), 3992 states have call successors, (4032) [2021-11-25 20:06:28,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11606 states to 11606 states and 16725 transitions. [2021-11-25 20:06:28,564 INFO L78 Accepts]: Start accepts. Automaton has 11606 states and 16725 transitions. Word has length 135 [2021-11-25 20:06:28,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:06:28,565 INFO L470 AbstractCegarLoop]: Abstraction has 11606 states and 16725 transitions. [2021-11-25 20:06:28,565 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2021-11-25 20:06:28,565 INFO L276 IsEmpty]: Start isEmpty. Operand 11606 states and 16725 transitions. [2021-11-25 20:06:28,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2021-11-25 20:06:28,627 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:06:28,627 INFO L514 BasicCegarLoop]: trace histogram [16, 16, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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] [2021-11-25 20:06:28,627 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-11-25 20:06:28,627 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting rcu_read_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-25 20:06:28,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:06:28,628 INFO L85 PathProgramCache]: Analyzing trace with hash -802417282, now seen corresponding path program 1 times [2021-11-25 20:06:28,628 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:06:28,628 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1221682254] [2021-11-25 20:06:28,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:06:28,629 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:06:28,753 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-25 20:06:28,753 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1135667041] [2021-11-25 20:06:28,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:06:28,754 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:06:28,754 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dcd2a3c-8aab-4309-ac70-28e089da6371/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 20:06:28,760 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dcd2a3c-8aab-4309-ac70-28e089da6371/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 20:06:28,787 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dcd2a3c-8aab-4309-ac70-28e089da6371/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-25 20:06:30,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:06:30,125 INFO L263 TraceCheckSpWp]: Trace formula consists of 3909 conjuncts, 15 conjunts are in the unsatisfiable core [2021-11-25 20:06:30,144 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 20:06:30,898 INFO L134 CoverageAnalysis]: Checked inductivity of 555 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 555 trivial. 0 not checked. [2021-11-25 20:06:30,899 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 20:06:30,899 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:06:30,899 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1221682254] [2021-11-25 20:06:30,899 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-25 20:06:30,899 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1135667041] [2021-11-25 20:06:30,900 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1135667041] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:06:30,900 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:06:30,900 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-25 20:06:30,900 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1356259058] [2021-11-25 20:06:30,900 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:06:30,901 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-25 20:06:30,901 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:06:30,901 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-25 20:06:30,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-25 20:06:30,902 INFO L87 Difference]: Start difference. First operand 11606 states and 16725 transitions. Second operand has 7 states, 6 states have (on average 9.5) internal successors, (57), 5 states have internal predecessors, (57), 2 states have call successors, (23), 3 states have call predecessors, (23), 2 states have return successors, (19), 2 states have call predecessors, (19), 1 states have call successors, (19) [2021-11-25 20:06:38,332 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:06:43,128 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 20:06:45,254 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:06:50,842 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 20:06:52,955 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 20:06:56,255 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 20:06:58,370 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 [] [2021-11-25 20:07:04,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:07:04,476 INFO L93 Difference]: Finished difference Result 12972 states and 19040 transitions. [2021-11-25 20:07:04,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-25 20:07:04,477 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 9.5) internal successors, (57), 5 states have internal predecessors, (57), 2 states have call successors, (23), 3 states have call predecessors, (23), 2 states have return successors, (19), 2 states have call predecessors, (19), 1 states have call successors, (19) Word has length 191 [2021-11-25 20:07:04,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:07:04,520 INFO L225 Difference]: With dead ends: 12972 [2021-11-25 20:07:04,520 INFO L226 Difference]: Without dead ends: 12970 [2021-11-25 20:07:04,530 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 195 GetRequests, 185 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2021-11-25 20:07:04,531 INFO L933 BasicCegarLoop]: 3102 mSDtfsCounter, 5768 mSDsluCounter, 4596 mSDsCounter, 0 mSdLazyCounter, 13320 mSolverCounterSat, 4415 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 29.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6113 SdHoareTripleChecker+Valid, 6974 SdHoareTripleChecker+Invalid, 17742 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4415 IncrementalHoareTripleChecker+Valid, 13320 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 32.3s IncrementalHoareTripleChecker+Time [2021-11-25 20:07:04,531 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6113 Valid, 6974 Invalid, 17742 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4415 Valid, 13320 Invalid, 7 Unknown, 0 Unchecked, 32.3s Time] [2021-11-25 20:07:04,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12970 states. [2021-11-25 20:07:05,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12970 to 12910. [2021-11-25 20:07:05,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12910 states, 7416 states have (on average 1.3187702265372168) internal successors, (9780), 7946 states have internal predecessors, (9780), 4504 states have call successors, (4504), 960 states have call predecessors, (4504), 977 states have return successors, (4647), 4392 states have call predecessors, (4647), 4502 states have call successors, (4647) [2021-11-25 20:07:05,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12910 states to 12910 states and 18931 transitions. [2021-11-25 20:07:05,685 INFO L78 Accepts]: Start accepts. Automaton has 12910 states and 18931 transitions. Word has length 191 [2021-11-25 20:07:05,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:07:05,686 INFO L470 AbstractCegarLoop]: Abstraction has 12910 states and 18931 transitions. [2021-11-25 20:07:05,686 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 9.5) internal successors, (57), 5 states have internal predecessors, (57), 2 states have call successors, (23), 3 states have call predecessors, (23), 2 states have return successors, (19), 2 states have call predecessors, (19), 1 states have call successors, (19) [2021-11-25 20:07:05,686 INFO L276 IsEmpty]: Start isEmpty. Operand 12910 states and 18931 transitions. [2021-11-25 20:07:05,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2021-11-25 20:07:05,690 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:07:05,690 INFO L514 BasicCegarLoop]: trace histogram [16, 16, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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] [2021-11-25 20:07:05,720 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dcd2a3c-8aab-4309-ac70-28e089da6371/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2021-11-25 20:07:05,901 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dcd2a3c-8aab-4309-ac70-28e089da6371/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2021-11-25 20:07:05,901 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-25 20:07:05,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:07:05,902 INFO L85 PathProgramCache]: Analyzing trace with hash -1292405772, now seen corresponding path program 1 times [2021-11-25 20:07:05,902 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:07:05,902 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [423349140] [2021-11-25 20:07:05,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:07:05,902 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:07:06,028 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-25 20:07:06,028 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [173517922] [2021-11-25 20:07:06,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:07:06,028 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:07:06,029 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dcd2a3c-8aab-4309-ac70-28e089da6371/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 20:07:06,029 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dcd2a3c-8aab-4309-ac70-28e089da6371/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 20:07:06,049 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dcd2a3c-8aab-4309-ac70-28e089da6371/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-25 20:07:07,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:07:07,715 INFO L263 TraceCheckSpWp]: Trace formula consists of 4129 conjuncts, 14 conjunts are in the unsatisfiable core [2021-11-25 20:07:07,725 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 20:07:08,250 INFO L134 CoverageAnalysis]: Checked inductivity of 555 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 555 trivial. 0 not checked. [2021-11-25 20:07:08,250 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 20:07:08,250 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:07:08,250 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [423349140] [2021-11-25 20:07:08,250 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-25 20:07:08,251 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [173517922] [2021-11-25 20:07:08,251 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [173517922] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:07:08,251 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:07:08,251 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-25 20:07:08,251 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [852727949] [2021-11-25 20:07:08,252 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:07:08,252 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-25 20:07:08,252 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:07:08,253 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-25 20:07:08,253 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-11-25 20:07:08,253 INFO L87 Difference]: Start difference. First operand 12910 states and 18931 transitions. Second operand has 6 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 1 states have call successors, (24), 1 states have call predecessors, (24), 2 states have return successors, (19), 2 states have call predecessors, (19), 1 states have call successors, (19) [2021-11-25 20:07:11,476 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 [] [2021-11-25 20:07:14,503 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:07:17,632 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 20:07:20,929 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 20:07:23,041 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 20:07:25,585 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 [] [2021-11-25 20:07:28,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:07:28,441 INFO L93 Difference]: Finished difference Result 12942 states and 19006 transitions. [2021-11-25 20:07:28,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-25 20:07:28,441 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 1 states have call successors, (24), 1 states have call predecessors, (24), 2 states have return successors, (19), 2 states have call predecessors, (19), 1 states have call successors, (19) Word has length 193 [2021-11-25 20:07:28,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:07:28,488 INFO L225 Difference]: With dead ends: 12942 [2021-11-25 20:07:28,488 INFO L226 Difference]: Without dead ends: 12940 [2021-11-25 20:07:28,502 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 194 GetRequests, 188 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2021-11-25 20:07:28,503 INFO L933 BasicCegarLoop]: 4608 mSDtfsCounter, 4526 mSDsluCounter, 13856 mSDsCounter, 0 mSdLazyCounter, 4467 mSolverCounterSat, 1 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4549 SdHoareTripleChecker+Valid, 16755 SdHoareTripleChecker+Invalid, 4474 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 4467 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.1s IncrementalHoareTripleChecker+Time [2021-11-25 20:07:28,503 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4549 Valid, 16755 Invalid, 4474 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 4467 Invalid, 6 Unknown, 0 Unchecked, 19.1s Time] [2021-11-25 20:07:28,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12940 states. [2021-11-25 20:07:29,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12940 to 12910. [2021-11-25 20:07:29,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12910 states, 7416 states have (on average 1.3183656957928802) internal successors, (9777), 7946 states have internal predecessors, (9777), 4504 states have call successors, (4504), 960 states have call predecessors, (4504), 977 states have return successors, (4647), 4392 states have call predecessors, (4647), 4502 states have call successors, (4647) [2021-11-25 20:07:29,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12910 states to 12910 states and 18928 transitions. [2021-11-25 20:07:29,601 INFO L78 Accepts]: Start accepts. Automaton has 12910 states and 18928 transitions. Word has length 193 [2021-11-25 20:07:29,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:07:29,601 INFO L470 AbstractCegarLoop]: Abstraction has 12910 states and 18928 transitions. [2021-11-25 20:07:29,602 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 1 states have call successors, (24), 1 states have call predecessors, (24), 2 states have return successors, (19), 2 states have call predecessors, (19), 1 states have call successors, (19) [2021-11-25 20:07:29,602 INFO L276 IsEmpty]: Start isEmpty. Operand 12910 states and 18928 transitions. [2021-11-25 20:07:29,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2021-11-25 20:07:29,606 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:07:29,606 INFO L514 BasicCegarLoop]: trace histogram [17, 17, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 4, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:07:29,651 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dcd2a3c-8aab-4309-ac70-28e089da6371/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2021-11-25 20:07:29,821 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dcd2a3c-8aab-4309-ac70-28e089da6371/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:07:29,821 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ldv_check_alloc_flagsErr1ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-25 20:07:29,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:07:29,821 INFO L85 PathProgramCache]: Analyzing trace with hash -1510587870, now seen corresponding path program 1 times [2021-11-25 20:07:29,822 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:07:29,822 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [800806804] [2021-11-25 20:07:29,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:07:29,822 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:07:29,968 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-25 20:07:29,968 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1838633055] [2021-11-25 20:07:29,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:07:29,969 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:07:29,969 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dcd2a3c-8aab-4309-ac70-28e089da6371/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 20:07:29,970 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dcd2a3c-8aab-4309-ac70-28e089da6371/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 20:07:29,973 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dcd2a3c-8aab-4309-ac70-28e089da6371/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-25 20:07:31,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:07:31,463 INFO L263 TraceCheckSpWp]: Trace formula consists of 4262 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-25 20:07:31,471 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 20:07:32,080 INFO L134 CoverageAnalysis]: Checked inductivity of 615 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 615 trivial. 0 not checked. [2021-11-25 20:07:32,080 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 20:07:32,080 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:07:32,080 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [800806804] [2021-11-25 20:07:32,080 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-25 20:07:32,080 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1838633055] [2021-11-25 20:07:32,080 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1838633055] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:07:32,081 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:07:32,081 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-25 20:07:32,081 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1353299508] [2021-11-25 20:07:32,081 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:07:32,081 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 20:07:32,082 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:07:32,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 20:07:32,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:07:32,082 INFO L87 Difference]: Start difference. First operand 12910 states and 18928 transitions. Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 2 states have internal predecessors, (66), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2021-11-25 20:07:34,352 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 [] [2021-11-25 20:07:37,030 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 20:07:39,090 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.64s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 20:07:39,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:07:39,945 INFO L93 Difference]: Finished difference Result 25805 states and 38140 transitions. [2021-11-25 20:07:39,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 20:07:39,947 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 2 states have internal predecessors, (66), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) Word has length 215 [2021-11-25 20:07:39,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:07:39,993 INFO L225 Difference]: With dead ends: 25805 [2021-11-25 20:07:39,993 INFO L226 Difference]: Without dead ends: 12902 [2021-11-25 20:07:40,087 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 214 GetRequests, 213 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:07:40,088 INFO L933 BasicCegarLoop]: 4181 mSDtfsCounter, 4556 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 534 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4565 SdHoareTripleChecker+Valid, 4203 SdHoareTripleChecker+Invalid, 536 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 534 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.8s IncrementalHoareTripleChecker+Time [2021-11-25 20:07:40,088 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4565 Valid, 4203 Invalid, 536 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 534 Invalid, 2 Unknown, 0 Unchecked, 6.8s Time] [2021-11-25 20:07:40,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12902 states. [2021-11-25 20:07:41,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12902 to 12896. [2021-11-25 20:07:41,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12896 states, 7403 states have (on average 1.3173037957584763) internal successors, (9752), 7932 states have internal predecessors, (9752), 4504 states have call successors, (4504), 960 states have call predecessors, (4504), 977 states have return successors, (4647), 4392 states have call predecessors, (4647), 4502 states have call successors, (4647) [2021-11-25 20:07:41,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12896 states to 12896 states and 18903 transitions. [2021-11-25 20:07:41,239 INFO L78 Accepts]: Start accepts. Automaton has 12896 states and 18903 transitions. Word has length 215 [2021-11-25 20:07:41,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:07:41,240 INFO L470 AbstractCegarLoop]: Abstraction has 12896 states and 18903 transitions. [2021-11-25 20:07:41,240 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 2 states have internal predecessors, (66), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2021-11-25 20:07:41,240 INFO L276 IsEmpty]: Start isEmpty. Operand 12896 states and 18903 transitions. [2021-11-25 20:07:41,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2021-11-25 20:07:41,250 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:07:41,250 INFO L514 BasicCegarLoop]: trace histogram [18, 18, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 5, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:07:41,293 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dcd2a3c-8aab-4309-ac70-28e089da6371/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-25 20:07:41,469 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dcd2a3c-8aab-4309-ac70-28e089da6371/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:07:41,470 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-25 20:07:41,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:07:41,470 INFO L85 PathProgramCache]: Analyzing trace with hash -597152089, now seen corresponding path program 1 times [2021-11-25 20:07:41,470 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:07:41,471 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [255089279] [2021-11-25 20:07:41,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:07:41,471 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:07:41,591 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-25 20:07:41,591 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1466422495] [2021-11-25 20:07:41,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:07:41,591 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:07:41,592 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dcd2a3c-8aab-4309-ac70-28e089da6371/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 20:07:41,592 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dcd2a3c-8aab-4309-ac70-28e089da6371/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 20:07:41,612 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dcd2a3c-8aab-4309-ac70-28e089da6371/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-25 20:07:43,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:07:43,075 INFO L263 TraceCheckSpWp]: Trace formula consists of 4300 conjuncts, 37 conjunts are in the unsatisfiable core [2021-11-25 20:07:43,084 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 20:07:43,778 INFO L134 CoverageAnalysis]: Checked inductivity of 690 backedges. 102 proven. 14 refuted. 0 times theorem prover too weak. 574 trivial. 0 not checked. [2021-11-25 20:07:43,778 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 20:07:44,479 INFO L134 CoverageAnalysis]: Checked inductivity of 690 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 682 trivial. 0 not checked. [2021-11-25 20:07:44,479 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:07:44,479 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [255089279] [2021-11-25 20:07:44,480 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-25 20:07:44,480 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1466422495] [2021-11-25 20:07:44,480 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1466422495] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-25 20:07:44,480 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-25 20:07:44,480 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 7 [2021-11-25 20:07:44,481 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [523593210] [2021-11-25 20:07:44,481 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:07:44,483 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-25 20:07:44,483 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:07:44,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-25 20:07:44,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-25 20:07:44,484 INFO L87 Difference]: Start difference. First operand 12896 states and 18903 transitions. Second operand has 6 states, 6 states have (on average 12.5) internal successors, (75), 5 states have internal predecessors, (75), 3 states have call successors, (33), 4 states have call predecessors, (33), 2 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2021-11-25 20:07:47,166 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 20:07:49,791 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:07:52,418 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 20:07:55,897 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 20:08:02,614 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 20:08:05,718 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 20:08:09,098 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 [] [2021-11-25 20:08:12,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:08:12,109 INFO L93 Difference]: Finished difference Result 25710 states and 38879 transitions. [2021-11-25 20:08:12,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-25 20:08:12,110 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.5) internal successors, (75), 5 states have internal predecessors, (75), 3 states have call successors, (33), 4 states have call predecessors, (33), 2 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) Word has length 243 [2021-11-25 20:08:12,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:08:12,210 INFO L225 Difference]: With dead ends: 25710 [2021-11-25 20:08:12,211 INFO L226 Difference]: Without dead ends: 25708 [2021-11-25 20:08:12,223 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 486 GetRequests, 478 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2021-11-25 20:08:12,224 INFO L933 BasicCegarLoop]: 4573 mSDtfsCounter, 6536 mSDsluCounter, 12777 mSDsCounter, 0 mSdLazyCounter, 8009 mSolverCounterSat, 1089 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7366 SdHoareTripleChecker+Valid, 15795 SdHoareTripleChecker+Invalid, 9105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1089 IncrementalHoareTripleChecker+Valid, 8009 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 25.4s IncrementalHoareTripleChecker+Time [2021-11-25 20:08:12,225 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7366 Valid, 15795 Invalid, 9105 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1089 Valid, 8009 Invalid, 7 Unknown, 0 Unchecked, 25.4s Time] [2021-11-25 20:08:12,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25708 states. [2021-11-25 20:08:14,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25708 to 25550. [2021-11-25 20:08:14,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25550 states, 14843 states have (on average 1.329111365626895) internal successors, (19728), 15888 states have internal predecessors, (19728), 8838 states have call successors, (8838), 1824 states have call predecessors, (8838), 1857 states have return successors, (10138), 8547 states have call predecessors, (10138), 8836 states have call successors, (10138) [2021-11-25 20:08:14,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25550 states to 25550 states and 38704 transitions. [2021-11-25 20:08:14,640 INFO L78 Accepts]: Start accepts. Automaton has 25550 states and 38704 transitions. Word has length 243 [2021-11-25 20:08:14,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:08:14,641 INFO L470 AbstractCegarLoop]: Abstraction has 25550 states and 38704 transitions. [2021-11-25 20:08:14,641 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.5) internal successors, (75), 5 states have internal predecessors, (75), 3 states have call successors, (33), 4 states have call predecessors, (33), 2 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2021-11-25 20:08:14,641 INFO L276 IsEmpty]: Start isEmpty. Operand 25550 states and 38704 transitions. [2021-11-25 20:08:14,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2021-11-25 20:08:14,647 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:08:14,647 INFO L514 BasicCegarLoop]: trace histogram [18, 18, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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] [2021-11-25 20:08:14,689 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dcd2a3c-8aab-4309-ac70-28e089da6371/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-25 20:08:14,861 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dcd2a3c-8aab-4309-ac70-28e089da6371/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2021-11-25 20:08:14,861 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-25 20:08:14,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:08:14,862 INFO L85 PathProgramCache]: Analyzing trace with hash -198322291, now seen corresponding path program 1 times [2021-11-25 20:08:14,862 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:08:14,862 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1810058061] [2021-11-25 20:08:14,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:08:14,862 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:08:14,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:08:15,344 INFO L134 CoverageAnalysis]: Checked inductivity of 668 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 668 trivial. 0 not checked. [2021-11-25 20:08:15,345 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:08:15,345 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1810058061] [2021-11-25 20:08:15,345 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1810058061] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:08:15,346 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:08:15,346 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-25 20:08:15,346 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [530035593] [2021-11-25 20:08:15,346 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:08:15,347 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-25 20:08:15,347 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:08:15,348 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-25 20:08:15,348 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-25 20:08:15,348 INFO L87 Difference]: Start difference. First operand 25550 states and 38704 transitions. Second operand has 6 states, 6 states have (on average 9.5) internal successors, (57), 5 states have internal predecessors, (57), 3 states have call successors, (28), 4 states have call predecessors, (28), 2 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2021-11-25 20:08:19,276 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 [] [2021-11-25 20:08:22,724 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:08:29,196 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 20:08:33,554 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 20:08:37,428 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 20:08:41,928 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 20:08:54,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:08:54,211 INFO L93 Difference]: Finished difference Result 59165 states and 99886 transitions. [2021-11-25 20:08:54,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-25 20:08:54,212 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 5 states have internal predecessors, (57), 3 states have call successors, (28), 4 states have call predecessors, (28), 2 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) Word has length 207 [2021-11-25 20:08:54,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:08:54,955 INFO L225 Difference]: With dead ends: 59165 [2021-11-25 20:08:54,956 INFO L226 Difference]: Without dead ends: 59163 [2021-11-25 20:08:54,993 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-11-25 20:08:54,994 INFO L933 BasicCegarLoop]: 3821 mSDtfsCounter, 7675 mSDsluCounter, 10284 mSDsCounter, 0 mSdLazyCounter, 14163 mSolverCounterSat, 4905 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 29.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8851 SdHoareTripleChecker+Valid, 12847 SdHoareTripleChecker+Invalid, 19074 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4905 IncrementalHoareTripleChecker+Valid, 14163 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 33.0s IncrementalHoareTripleChecker+Time [2021-11-25 20:08:54,994 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8851 Valid, 12847 Invalid, 19074 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4905 Valid, 14163 Invalid, 6 Unknown, 0 Unchecked, 33.0s Time] [2021-11-25 20:08:55,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59163 states. [2021-11-25 20:09:01,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59163 to 58673. [2021-11-25 20:09:01,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58673 states, 34645 states have (on average 1.349401067975177) internal successors, (46750), 37219 states have internal predecessors, (46750), 20374 states have call successors, (20374), 3380 states have call predecessors, (20374), 3642 states have return successors, (31993), 19664 states have call predecessors, (31993), 20372 states have call successors, (31993) [2021-11-25 20:09:02,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58673 states to 58673 states and 99117 transitions. [2021-11-25 20:09:02,395 INFO L78 Accepts]: Start accepts. Automaton has 58673 states and 99117 transitions. Word has length 207 [2021-11-25 20:09:02,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:09:02,395 INFO L470 AbstractCegarLoop]: Abstraction has 58673 states and 99117 transitions. [2021-11-25 20:09:02,396 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 5 states have internal predecessors, (57), 3 states have call successors, (28), 4 states have call predecessors, (28), 2 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2021-11-25 20:09:02,396 INFO L276 IsEmpty]: Start isEmpty. Operand 58673 states and 99117 transitions. [2021-11-25 20:09:02,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 253 [2021-11-25 20:09:02,402 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:09:02,402 INFO L514 BasicCegarLoop]: trace histogram [18, 18, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 5, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:09:02,402 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-11-25 20:09:02,402 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting cpumask_nextErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-25 20:09:02,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:09:02,403 INFO L85 PathProgramCache]: Analyzing trace with hash -666384387, now seen corresponding path program 1 times [2021-11-25 20:09:02,403 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:09:02,403 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [618124815] [2021-11-25 20:09:02,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:09:02,403 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:09:02,544 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-25 20:09:02,544 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1366664314] [2021-11-25 20:09:02,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:09:02,544 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:09:02,545 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dcd2a3c-8aab-4309-ac70-28e089da6371/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 20:09:02,549 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dcd2a3c-8aab-4309-ac70-28e089da6371/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 20:09:02,573 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dcd2a3c-8aab-4309-ac70-28e089da6371/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-25 20:09:03,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:09:03,961 INFO L263 TraceCheckSpWp]: Trace formula consists of 4355 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-25 20:09:03,970 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 20:09:04,283 INFO L134 CoverageAnalysis]: Checked inductivity of 690 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 690 trivial. 0 not checked. [2021-11-25 20:09:04,283 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 20:09:04,283 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:09:04,283 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [618124815] [2021-11-25 20:09:04,283 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-25 20:09:04,283 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1366664314] [2021-11-25 20:09:04,284 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1366664314] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:09:04,284 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:09:04,284 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 20:09:04,284 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1964462409] [2021-11-25 20:09:04,284 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:09:04,284 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 20:09:04,285 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:09:04,285 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 20:09:04,285 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:09:04,285 INFO L87 Difference]: Start difference. First operand 58673 states and 99117 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, (31), 2 states have call predecessors, (31), 2 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2021-11-25 20:09:06,835 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 [] [2021-11-25 20:09:09,311 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:09:12,092 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 20:09:15,229 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 [] [2021-11-25 20:09:22,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:09:22,574 INFO L93 Difference]: Finished difference Result 116346 states and 201407 transitions. [2021-11-25 20:09:22,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 20:09:22,580 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, (31), 2 states have call predecessors, (31), 2 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 252 [2021-11-25 20:09:22,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:09:23,012 INFO L225 Difference]: With dead ends: 116346 [2021-11-25 20:09:23,013 INFO L226 Difference]: Without dead ends: 57680 [2021-11-25 20:09:24,077 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 251 GetRequests, 250 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:09:24,078 INFO L933 BasicCegarLoop]: 4181 mSDtfsCounter, 3 mSDsluCounter, 4696 mSDsCounter, 0 mSdLazyCounter, 1040 mSolverCounterSat, 0 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 8360 SdHoareTripleChecker+Invalid, 1044 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1040 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.4s IncrementalHoareTripleChecker+Time [2021-11-25 20:09:24,078 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 8360 Invalid, 1044 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1040 Invalid, 4 Unknown, 0 Unchecked, 10.4s Time] [2021-11-25 20:09:24,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57680 states. [2021-11-25 20:09:29,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57680 to 54135. [2021-11-25 20:09:30,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54135 states, 31715 states have (on average 1.3409112407378212) internal successors, (42527), 34144 states have internal predecessors, (42527), 18829 states have call successors, (18829), 3344 states have call predecessors, (18829), 3579 states have return successors, (27704), 18096 states have call predecessors, (27704), 18827 states have call successors, (27704) [2021-11-25 20:09:30,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54135 states to 54135 states and 89060 transitions. [2021-11-25 20:09:30,768 INFO L78 Accepts]: Start accepts. Automaton has 54135 states and 89060 transitions. Word has length 252 [2021-11-25 20:09:30,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:09:30,769 INFO L470 AbstractCegarLoop]: Abstraction has 54135 states and 89060 transitions. [2021-11-25 20:09:30,769 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, (31), 2 states have call predecessors, (31), 2 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2021-11-25 20:09:30,769 INFO L276 IsEmpty]: Start isEmpty. Operand 54135 states and 89060 transitions. [2021-11-25 20:09:30,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2021-11-25 20:09:30,778 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:09:30,778 INFO L514 BasicCegarLoop]: trace histogram [19, 19, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 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] [2021-11-25 20:09:30,824 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dcd2a3c-8aab-4309-ac70-28e089da6371/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2021-11-25 20:09:30,993 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dcd2a3c-8aab-4309-ac70-28e089da6371/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2021-11-25 20:09:30,993 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-25 20:09:30,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:09:30,994 INFO L85 PathProgramCache]: Analyzing trace with hash -89267426, now seen corresponding path program 1 times [2021-11-25 20:09:30,994 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:09:30,994 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1237071780] [2021-11-25 20:09:30,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:09:30,994 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:09:31,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:09:31,280 INFO L134 CoverageAnalysis]: Checked inductivity of 738 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 734 trivial. 0 not checked. [2021-11-25 20:09:31,280 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:09:31,280 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1237071780] [2021-11-25 20:09:31,281 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1237071780] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 20:09:31,281 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [941787109] [2021-11-25 20:09:31,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:09:31,281 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:09:31,281 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dcd2a3c-8aab-4309-ac70-28e089da6371/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 20:09:31,285 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dcd2a3c-8aab-4309-ac70-28e089da6371/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 20:09:31,307 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dcd2a3c-8aab-4309-ac70-28e089da6371/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-11-25 20:09:32,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:09:32,918 INFO L263 TraceCheckSpWp]: Trace formula consists of 4101 conjuncts, 21 conjunts are in the unsatisfiable core [2021-11-25 20:09:32,924 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 20:09:33,551 INFO L134 CoverageAnalysis]: Checked inductivity of 738 backedges. 61 proven. 7 refuted. 0 times theorem prover too weak. 670 trivial. 0 not checked. [2021-11-25 20:09:33,551 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 20:09:34,199 INFO L134 CoverageAnalysis]: Checked inductivity of 738 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 734 trivial. 0 not checked. [2021-11-25 20:09:34,200 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [941787109] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-25 20:09:34,200 INFO L186 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2021-11-25 20:09:34,200 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6, 6] total 9 [2021-11-25 20:09:34,200 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [862125285] [2021-11-25 20:09:34,200 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:09:34,201 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-25 20:09:34,201 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:09:34,201 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-25 20:09:34,201 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-11-25 20:09:34,202 INFO L87 Difference]: Start difference. First operand 54135 states and 89060 transitions. Second operand has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 5 states have internal predecessors, (73), 3 states have call successors, (35), 4 states have call predecessors, (35), 2 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) [2021-11-25 20:09:37,472 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 [] [2021-11-25 20:09:40,511 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:09:42,667 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:09:46,283 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 20:09:48,857 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []