./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0f8a17c6 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs --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 5c8407b01b6fe267e548d9a1140b4b401c355e8b9b48d0e3e8bb3d2d9d4dce8c --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 14:32:16,404 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 14:32:16,407 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 14:32:16,467 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 14:32:16,468 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 14:32:16,473 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 14:32:16,475 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 14:32:16,479 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 14:32:16,482 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 14:32:16,488 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 14:32:16,489 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 14:32:16,491 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 14:32:16,492 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 14:32:16,494 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 14:32:16,497 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 14:32:16,502 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 14:32:16,504 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 14:32:16,505 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 14:32:16,507 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 14:32:16,516 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 14:32:16,518 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 14:32:16,519 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 14:32:16,522 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 14:32:16,523 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 14:32:16,533 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 14:32:16,533 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 14:32:16,534 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 14:32:16,536 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 14:32:16,537 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 14:32:16,538 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 14:32:16,539 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 14:32:16,540 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 14:32:16,542 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 14:32:16,543 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 14:32:16,545 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 14:32:16,545 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 14:32:16,546 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 14:32:16,546 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 14:32:16,546 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 14:32:16,547 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 14:32:16,548 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 14:32:16,549 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-19 14:32:16,582 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 14:32:16,582 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 14:32:16,583 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 14:32:16,583 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 14:32:16,584 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-19 14:32:16,584 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-19 14:32:16,584 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-19 14:32:16,584 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-19 14:32:16,585 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-19 14:32:16,585 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-19 14:32:16,585 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-19 14:32:16,585 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-19 14:32:16,586 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-19 14:32:16,586 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-19 14:32:16,586 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-19 14:32:16,586 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-19 14:32:16,587 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 14:32:16,587 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-19 14:32:16,588 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 14:32:16,588 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-19 14:32:16,588 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 14:32:16,588 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-19 14:32:16,589 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-19 14:32:16,589 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-19 14:32:16,589 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 14:32:16,589 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-19 14:32:16,590 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 14:32:16,590 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 14:32:16,590 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 14:32:16,590 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 14:32:16,591 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 14:32:16,591 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-19 14:32:16,591 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-19 14:32:16,591 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-19 14:32:16,592 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-19 14:32:16,592 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 14:32:16,592 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-19 14:32:16,592 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5c8407b01b6fe267e548d9a1140b4b401c355e8b9b48d0e3e8bb3d2d9d4dce8c [2021-11-19 14:32:16,874 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 14:32:16,914 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 14:32:16,919 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 14:32:16,920 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 14:32:16,921 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 14:32:16,922 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs/../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i [2021-11-19 14:32:17,004 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs/data/dbfd5bcb7/4d8d6032d15e4693a9c369e7137a1e66/FLAGa34795a9d [2021-11-19 14:32:18,083 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 14:32:18,084 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i [2021-11-19 14:32:18,143 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs/data/dbfd5bcb7/4d8d6032d15e4693a9c369e7137a1e66/FLAGa34795a9d [2021-11-19 14:32:18,391 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs/data/dbfd5bcb7/4d8d6032d15e4693a9c369e7137a1e66 [2021-11-19 14:32:18,393 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 14:32:18,394 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 14:32:18,397 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 14:32:18,397 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 14:32:18,401 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 14:32:18,401 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:32:18" (1/1) ... [2021-11-19 14:32:18,403 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7474033 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:32:18, skipping insertion in model container [2021-11-19 14:32:18,403 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:32:18" (1/1) ... [2021-11-19 14:32:18,410 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 14:32:18,653 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 14:32:20,256 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:32:21,531 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:32:24,215 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[479065,479078] [2021-11-19 14:32:24,218 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[479210,479223] [2021-11-19 14:32:24,219 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[479356,479369] [2021-11-19 14:32:24,220 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[479521,479534] [2021-11-19 14:32:24,220 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[479679,479692] [2021-11-19 14:32:24,221 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[479837,479850] [2021-11-19 14:32:24,221 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[479995,480008] [2021-11-19 14:32:24,222 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[480155,480168] [2021-11-19 14:32:24,222 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[480314,480327] [2021-11-19 14:32:24,223 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[480453,480466] [2021-11-19 14:32:24,223 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[480595,480608] [2021-11-19 14:32:24,224 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[480744,480757] [2021-11-19 14:32:24,224 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[480883,480896] [2021-11-19 14:32:24,227 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[481038,481051] [2021-11-19 14:32:24,228 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[481198,481211] [2021-11-19 14:32:24,235 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[481349,481362] [2021-11-19 14:32:24,236 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[481500,481513] [2021-11-19 14:32:24,237 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[481652,481665] [2021-11-19 14:32:24,238 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[481801,481814] [2021-11-19 14:32:24,239 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[481949,481962] [2021-11-19 14:32:24,240 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[482106,482119] [2021-11-19 14:32:24,240 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[482255,482268] [2021-11-19 14:32:24,242 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[482411,482424] [2021-11-19 14:32:24,245 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[482564,482577] [2021-11-19 14:32:24,245 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[482710,482723] [2021-11-19 14:32:24,246 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[482853,482866] [2021-11-19 14:32:24,247 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[483005,483018] [2021-11-19 14:32:24,248 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[483151,483164] [2021-11-19 14:32:24,248 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[483296,483309] [2021-11-19 14:32:24,250 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[483450,483463] [2021-11-19 14:32:24,251 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[483601,483614] [2021-11-19 14:32:24,251 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[483756,483769] [2021-11-19 14:32:24,253 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[483908,483921] [2021-11-19 14:32:24,253 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[484063,484076] [2021-11-19 14:32:24,254 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[484227,484240] [2021-11-19 14:32:24,254 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[484383,484396] [2021-11-19 14:32:24,255 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[484547,484560] [2021-11-19 14:32:24,256 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[484689,484702] [2021-11-19 14:32:24,256 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[484847,484860] [2021-11-19 14:32:24,257 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[485014,485027] [2021-11-19 14:32:24,257 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[485173,485186] [2021-11-19 14:32:24,258 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[485332,485345] [2021-11-19 14:32:24,258 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[485481,485494] [2021-11-19 14:32:24,259 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[485628,485641] [2021-11-19 14:32:24,259 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[485767,485780] [2021-11-19 14:32:24,260 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[485930,485943] [2021-11-19 14:32:24,260 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[486096,486109] [2021-11-19 14:32:24,262 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[486260,486273] [2021-11-19 14:32:24,263 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[486425,486438] [2021-11-19 14:32:24,263 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[486590,486603] [2021-11-19 14:32:24,264 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[486756,486769] [2021-11-19 14:32:24,264 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[486921,486934] [2021-11-19 14:32:24,265 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[487088,487101] [2021-11-19 14:32:24,265 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[487248,487261] [2021-11-19 14:32:24,266 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[487410,487423] [2021-11-19 14:32:24,266 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[487569,487582] [2021-11-19 14:32:24,267 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[487715,487728] [2021-11-19 14:32:24,267 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[487858,487871] [2021-11-19 14:32:24,268 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[488002,488015] [2021-11-19 14:32:24,268 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[488145,488158] [2021-11-19 14:32:24,269 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[488289,488302] [2021-11-19 14:32:24,270 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[488430,488443] [2021-11-19 14:32:24,270 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[488568,488581] [2021-11-19 14:32:24,271 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[488726,488739] [2021-11-19 14:32:24,272 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[488885,488898] [2021-11-19 14:32:24,272 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[489041,489054] [2021-11-19 14:32:24,273 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[489190,489203] [2021-11-19 14:32:24,274 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[489342,489355] [2021-11-19 14:32:24,274 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[489493,489506] [2021-11-19 14:32:24,275 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[489642,489655] [2021-11-19 14:32:24,276 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[489794,489807] [2021-11-19 14:32:24,276 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[489942,489955] [2021-11-19 14:32:24,277 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[490095,490108] [2021-11-19 14:32:24,277 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[490246,490259] [2021-11-19 14:32:24,279 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[490396,490409] [2021-11-19 14:32:24,279 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[490543,490556] [2021-11-19 14:32:24,280 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[490694,490707] [2021-11-19 14:32:24,280 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[490845,490858] [2021-11-19 14:32:24,281 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[490993,491006] [2021-11-19 14:32:24,281 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[491159,491172] [2021-11-19 14:32:24,282 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[491328,491341] [2021-11-19 14:32:24,282 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[491495,491508] [2021-11-19 14:32:24,283 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[491663,491676] [2021-11-19 14:32:24,284 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[491813,491826] [2021-11-19 14:32:24,285 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[491960,491973] [2021-11-19 14:32:24,286 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[492121,492134] [2021-11-19 14:32:24,287 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[492291,492304] [2021-11-19 14:32:24,288 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[492453,492466] [2021-11-19 14:32:24,311 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 14:32:24,354 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2021-11-19 14:32:24,355 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@468e0be8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:32:24, skipping insertion in model container [2021-11-19 14:32:24,355 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 14:32:24,355 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-19 14:32:24,357 INFO L158 Benchmark]: Toolchain (without parser) took 5962.11ms. Allocated memory was 94.4MB in the beginning and 157.3MB in the end (delta: 62.9MB). Free memory was 57.9MB in the beginning and 87.4MB in the end (delta: -29.5MB). Peak memory consumption was 58.0MB. Max. memory is 16.1GB. [2021-11-19 14:32:24,358 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 94.4MB. Free memory is still 71.6MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 14:32:24,359 INFO L158 Benchmark]: CACSL2BoogieTranslator took 5958.22ms. Allocated memory was 94.4MB in the beginning and 157.3MB in the end (delta: 62.9MB). Free memory was 57.9MB in the beginning and 87.4MB in the end (delta: -29.5MB). Peak memory consumption was 58.0MB. Max. memory is 16.1GB. [2021-11-19 14:32:24,360 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 94.4MB. Free memory is still 71.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 5958.22ms. Allocated memory was 94.4MB in the beginning and 157.3MB in the end (delta: 62.9MB). Free memory was 57.9MB in the beginning and 87.4MB in the end (delta: -29.5MB). Peak memory consumption was 58.0MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 4500]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs --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 5c8407b01b6fe267e548d9a1140b4b401c355e8b9b48d0e3e8bb3d2d9d4dce8c --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 14:32:26,749 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 14:32:26,751 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 14:32:26,783 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 14:32:26,784 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 14:32:26,785 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 14:32:26,787 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 14:32:26,790 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 14:32:26,793 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 14:32:26,794 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 14:32:26,796 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 14:32:26,798 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 14:32:26,802 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 14:32:26,808 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 14:32:26,810 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 14:32:26,812 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 14:32:26,814 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 14:32:26,816 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 14:32:26,822 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 14:32:26,828 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 14:32:26,835 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 14:32:26,839 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 14:32:26,841 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 14:32:26,842 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 14:32:26,846 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 14:32:26,846 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 14:32:26,847 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 14:32:26,848 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 14:32:26,849 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 14:32:26,850 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 14:32:26,851 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 14:32:26,852 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 14:32:26,853 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 14:32:26,854 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 14:32:26,855 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 14:32:26,856 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 14:32:26,857 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 14:32:26,858 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 14:32:26,858 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 14:32:26,859 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 14:32:26,860 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 14:32:26,861 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-19 14:32:26,888 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 14:32:26,889 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 14:32:26,889 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 14:32:26,890 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 14:32:26,890 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-19 14:32:26,890 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-19 14:32:26,891 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-19 14:32:26,891 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-19 14:32:26,891 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-19 14:32:26,891 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-19 14:32:26,892 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 14:32:26,892 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 14:32:26,893 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-19 14:32:26,893 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 14:32:26,893 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-19 14:32:26,893 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-19 14:32:26,894 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-19 14:32:26,894 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-19 14:32:26,894 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-19 14:32:26,894 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 14:32:26,895 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-19 14:32:26,895 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 14:32:26,895 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-19 14:32:26,895 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 14:32:26,896 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 14:32:26,896 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 14:32:26,896 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 14:32:26,896 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-19 14:32:26,897 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-19 14:32:26,897 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-19 14:32:26,897 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-19 14:32:26,897 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 14:32:26,898 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-19 14:32:26,898 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5c8407b01b6fe267e548d9a1140b4b401c355e8b9b48d0e3e8bb3d2d9d4dce8c [2021-11-19 14:32:27,334 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 14:32:27,370 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 14:32:27,374 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 14:32:27,375 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 14:32:27,376 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 14:32:27,378 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs/../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i [2021-11-19 14:32:27,471 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs/data/6c6709634/9912c49bf509486b9ab012454e3f3c3e/FLAG5477a77b6 [2021-11-19 14:32:28,676 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 14:32:28,677 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i [2021-11-19 14:32:28,751 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs/data/6c6709634/9912c49bf509486b9ab012454e3f3c3e/FLAG5477a77b6 [2021-11-19 14:32:28,902 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs/data/6c6709634/9912c49bf509486b9ab012454e3f3c3e [2021-11-19 14:32:28,904 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 14:32:28,906 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 14:32:28,908 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 14:32:28,908 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 14:32:28,912 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 14:32:28,913 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:32:28" (1/1) ... [2021-11-19 14:32:28,914 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b3e5ca9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:32:28, skipping insertion in model container [2021-11-19 14:32:28,914 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:32:28" (1/1) ... [2021-11-19 14:32:28,922 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 14:32:29,144 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 14:32:34,777 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[479065,479078] [2021-11-19 14:32:34,780 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[479210,479223] [2021-11-19 14:32:34,781 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[479356,479369] [2021-11-19 14:32:34,782 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[479521,479534] [2021-11-19 14:32:34,783 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[479679,479692] [2021-11-19 14:32:34,785 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[479837,479850] [2021-11-19 14:32:34,786 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[479995,480008] [2021-11-19 14:32:34,786 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[480155,480168] [2021-11-19 14:32:34,788 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[480314,480327] [2021-11-19 14:32:34,788 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[480453,480466] [2021-11-19 14:32:34,790 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[480595,480608] [2021-11-19 14:32:34,791 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[480744,480757] [2021-11-19 14:32:34,792 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[480883,480896] [2021-11-19 14:32:34,793 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[481038,481051] [2021-11-19 14:32:34,793 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[481198,481211] [2021-11-19 14:32:34,794 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[481349,481362] [2021-11-19 14:32:34,794 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[481500,481513] [2021-11-19 14:32:34,795 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[481652,481665] [2021-11-19 14:32:34,796 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[481801,481814] [2021-11-19 14:32:34,797 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[481949,481962] [2021-11-19 14:32:34,797 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[482106,482119] [2021-11-19 14:32:34,798 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[482255,482268] [2021-11-19 14:32:34,799 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[482411,482424] [2021-11-19 14:32:34,802 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[482564,482577] [2021-11-19 14:32:34,802 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[482710,482723] [2021-11-19 14:32:34,803 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[482853,482866] [2021-11-19 14:32:34,804 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[483005,483018] [2021-11-19 14:32:34,804 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[483151,483164] [2021-11-19 14:32:34,806 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[483296,483309] [2021-11-19 14:32:34,808 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[483450,483463] [2021-11-19 14:32:34,808 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[483601,483614] [2021-11-19 14:32:34,809 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[483756,483769] [2021-11-19 14:32:34,810 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[483908,483921] [2021-11-19 14:32:34,811 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[484063,484076] [2021-11-19 14:32:34,811 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[484227,484240] [2021-11-19 14:32:34,812 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[484383,484396] [2021-11-19 14:32:34,812 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[484547,484560] [2021-11-19 14:32:34,813 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[484689,484702] [2021-11-19 14:32:34,813 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[484847,484860] [2021-11-19 14:32:34,814 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[485014,485027] [2021-11-19 14:32:34,814 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[485173,485186] [2021-11-19 14:32:34,815 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[485332,485345] [2021-11-19 14:32:34,815 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[485481,485494] [2021-11-19 14:32:34,816 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[485628,485641] [2021-11-19 14:32:34,816 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[485767,485780] [2021-11-19 14:32:34,817 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[485930,485943] [2021-11-19 14:32:34,817 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[486096,486109] [2021-11-19 14:32:34,819 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[486260,486273] [2021-11-19 14:32:34,819 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[486425,486438] [2021-11-19 14:32:34,820 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[486590,486603] [2021-11-19 14:32:34,821 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[486756,486769] [2021-11-19 14:32:34,821 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[486921,486934] [2021-11-19 14:32:34,822 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[487088,487101] [2021-11-19 14:32:34,822 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[487248,487261] [2021-11-19 14:32:34,823 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[487410,487423] [2021-11-19 14:32:34,823 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[487569,487582] [2021-11-19 14:32:34,824 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[487715,487728] [2021-11-19 14:32:34,825 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[487858,487871] [2021-11-19 14:32:34,825 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[488002,488015] [2021-11-19 14:32:34,826 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[488145,488158] [2021-11-19 14:32:34,826 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[488289,488302] [2021-11-19 14:32:34,827 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[488430,488443] [2021-11-19 14:32:34,828 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[488568,488581] [2021-11-19 14:32:34,828 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[488726,488739] [2021-11-19 14:32:34,829 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[488885,488898] [2021-11-19 14:32:34,830 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[489041,489054] [2021-11-19 14:32:34,831 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[489190,489203] [2021-11-19 14:32:34,831 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[489342,489355] [2021-11-19 14:32:34,832 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[489493,489506] [2021-11-19 14:32:34,832 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[489642,489655] [2021-11-19 14:32:34,833 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[489794,489807] [2021-11-19 14:32:34,833 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[489942,489955] [2021-11-19 14:32:34,834 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[490095,490108] [2021-11-19 14:32:34,834 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[490246,490259] [2021-11-19 14:32:34,835 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[490396,490409] [2021-11-19 14:32:34,836 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[490543,490556] [2021-11-19 14:32:34,836 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[490694,490707] [2021-11-19 14:32:34,837 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[490845,490858] [2021-11-19 14:32:34,838 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[490993,491006] [2021-11-19 14:32:34,838 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[491159,491172] [2021-11-19 14:32:34,839 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[491328,491341] [2021-11-19 14:32:34,839 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[491495,491508] [2021-11-19 14:32:34,840 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[491663,491676] [2021-11-19 14:32:34,840 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[491813,491826] [2021-11-19 14:32:34,840 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[491960,491973] [2021-11-19 14:32:34,842 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[492121,492134] [2021-11-19 14:32:34,842 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[492291,492304] [2021-11-19 14:32:34,843 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[492453,492466] [2021-11-19 14:32:34,883 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 14:32:34,936 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-19 14:32:35,023 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 14:32:35,552 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[479065,479078] [2021-11-19 14:32:35,552 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[479210,479223] [2021-11-19 14:32:35,553 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[479356,479369] [2021-11-19 14:32:35,560 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[479521,479534] [2021-11-19 14:32:35,561 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[479679,479692] [2021-11-19 14:32:35,563 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[479837,479850] [2021-11-19 14:32:35,563 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[479995,480008] [2021-11-19 14:32:35,564 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[480155,480168] [2021-11-19 14:32:35,564 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[480314,480327] [2021-11-19 14:32:35,565 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[480453,480466] [2021-11-19 14:32:35,565 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[480595,480608] [2021-11-19 14:32:35,566 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[480744,480757] [2021-11-19 14:32:35,566 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[480883,480896] [2021-11-19 14:32:35,567 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[481038,481051] [2021-11-19 14:32:35,568 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[481198,481211] [2021-11-19 14:32:35,568 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[481349,481362] [2021-11-19 14:32:35,569 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[481500,481513] [2021-11-19 14:32:35,569 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[481652,481665] [2021-11-19 14:32:35,571 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[481801,481814] [2021-11-19 14:32:35,571 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[481949,481962] [2021-11-19 14:32:35,572 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[482106,482119] [2021-11-19 14:32:35,572 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[482255,482268] [2021-11-19 14:32:35,573 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[482411,482424] [2021-11-19 14:32:35,573 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[482564,482577] [2021-11-19 14:32:35,574 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[482710,482723] [2021-11-19 14:32:35,574 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[482853,482866] [2021-11-19 14:32:35,575 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[483005,483018] [2021-11-19 14:32:35,575 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[483151,483164] [2021-11-19 14:32:35,576 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[483296,483309] [2021-11-19 14:32:35,576 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[483450,483463] [2021-11-19 14:32:35,577 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[483601,483614] [2021-11-19 14:32:35,578 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[483756,483769] [2021-11-19 14:32:35,578 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[483908,483921] [2021-11-19 14:32:35,578 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[484063,484076] [2021-11-19 14:32:35,579 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[484227,484240] [2021-11-19 14:32:35,579 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[484383,484396] [2021-11-19 14:32:35,581 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[484547,484560] [2021-11-19 14:32:35,581 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[484689,484702] [2021-11-19 14:32:35,582 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[484847,484860] [2021-11-19 14:32:35,582 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[485014,485027] [2021-11-19 14:32:35,583 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[485173,485186] [2021-11-19 14:32:35,584 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[485332,485345] [2021-11-19 14:32:35,585 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[485481,485494] [2021-11-19 14:32:35,586 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[485628,485641] [2021-11-19 14:32:35,586 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[485767,485780] [2021-11-19 14:32:35,587 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[485930,485943] [2021-11-19 14:32:35,587 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[486096,486109] [2021-11-19 14:32:35,593 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[486260,486273] [2021-11-19 14:32:35,594 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[486425,486438] [2021-11-19 14:32:35,595 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[486590,486603] [2021-11-19 14:32:35,595 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[486756,486769] [2021-11-19 14:32:35,596 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[486921,486934] [2021-11-19 14:32:35,596 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[487088,487101] [2021-11-19 14:32:35,597 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[487248,487261] [2021-11-19 14:32:35,598 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[487410,487423] [2021-11-19 14:32:35,598 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[487569,487582] [2021-11-19 14:32:35,598 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[487715,487728] [2021-11-19 14:32:35,599 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[487858,487871] [2021-11-19 14:32:35,600 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[488002,488015] [2021-11-19 14:32:35,603 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[488145,488158] [2021-11-19 14:32:35,607 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[488289,488302] [2021-11-19 14:32:35,607 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[488430,488443] [2021-11-19 14:32:35,608 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[488568,488581] [2021-11-19 14:32:35,608 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[488726,488739] [2021-11-19 14:32:35,610 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[488885,488898] [2021-11-19 14:32:35,611 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[489041,489054] [2021-11-19 14:32:35,611 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[489190,489203] [2021-11-19 14:32:35,612 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[489342,489355] [2021-11-19 14:32:35,612 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[489493,489506] [2021-11-19 14:32:35,619 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[489642,489655] [2021-11-19 14:32:35,619 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[489794,489807] [2021-11-19 14:32:35,620 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[489942,489955] [2021-11-19 14:32:35,620 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[490095,490108] [2021-11-19 14:32:35,620 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[490246,490259] [2021-11-19 14:32:35,621 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[490396,490409] [2021-11-19 14:32:35,621 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[490543,490556] [2021-11-19 14:32:35,622 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[490694,490707] [2021-11-19 14:32:35,622 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[490845,490858] [2021-11-19 14:32:35,624 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[490993,491006] [2021-11-19 14:32:35,625 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[491159,491172] [2021-11-19 14:32:35,625 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[491328,491341] [2021-11-19 14:32:35,626 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[491495,491508] [2021-11-19 14:32:35,627 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[491663,491676] [2021-11-19 14:32:35,627 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[491813,491826] [2021-11-19 14:32:35,628 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[491960,491973] [2021-11-19 14:32:35,628 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[492121,492134] [2021-11-19 14:32:35,628 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[492291,492304] [2021-11-19 14:32:35,629 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[492453,492466] [2021-11-19 14:32:35,639 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 14:32:35,685 INFO L203 MainTranslator]: Completed pre-run [2021-11-19 14:32:36,327 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[479065,479078] [2021-11-19 14:32:36,328 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[479210,479223] [2021-11-19 14:32:36,329 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[479356,479369] [2021-11-19 14:32:36,329 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[479521,479534] [2021-11-19 14:32:36,330 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[479679,479692] [2021-11-19 14:32:36,330 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[479837,479850] [2021-11-19 14:32:36,346 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[479995,480008] [2021-11-19 14:32:36,347 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[480155,480168] [2021-11-19 14:32:36,347 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[480314,480327] [2021-11-19 14:32:36,347 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[480453,480466] [2021-11-19 14:32:36,348 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[480595,480608] [2021-11-19 14:32:36,348 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[480744,480757] [2021-11-19 14:32:36,349 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[480883,480896] [2021-11-19 14:32:36,349 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[481038,481051] [2021-11-19 14:32:36,350 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[481198,481211] [2021-11-19 14:32:36,350 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[481349,481362] [2021-11-19 14:32:36,350 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[481500,481513] [2021-11-19 14:32:36,351 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[481652,481665] [2021-11-19 14:32:36,351 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[481801,481814] [2021-11-19 14:32:36,352 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[481949,481962] [2021-11-19 14:32:36,352 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[482106,482119] [2021-11-19 14:32:36,352 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[482255,482268] [2021-11-19 14:32:36,353 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[482411,482424] [2021-11-19 14:32:36,353 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[482564,482577] [2021-11-19 14:32:36,354 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[482710,482723] [2021-11-19 14:32:36,354 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[482853,482866] [2021-11-19 14:32:36,355 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[483005,483018] [2021-11-19 14:32:36,355 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[483151,483164] [2021-11-19 14:32:36,355 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[483296,483309] [2021-11-19 14:32:36,356 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[483450,483463] [2021-11-19 14:32:36,356 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[483601,483614] [2021-11-19 14:32:36,357 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[483756,483769] [2021-11-19 14:32:36,357 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[483908,483921] [2021-11-19 14:32:36,358 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[484063,484076] [2021-11-19 14:32:36,358 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[484227,484240] [2021-11-19 14:32:36,359 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[484383,484396] [2021-11-19 14:32:36,359 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[484547,484560] [2021-11-19 14:32:36,360 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[484689,484702] [2021-11-19 14:32:36,360 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[484847,484860] [2021-11-19 14:32:36,361 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[485014,485027] [2021-11-19 14:32:36,361 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[485173,485186] [2021-11-19 14:32:36,361 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[485332,485345] [2021-11-19 14:32:36,362 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[485481,485494] [2021-11-19 14:32:36,362 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[485628,485641] [2021-11-19 14:32:36,363 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[485767,485780] [2021-11-19 14:32:36,376 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[485930,485943] [2021-11-19 14:32:36,377 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[486096,486109] [2021-11-19 14:32:36,377 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[486260,486273] [2021-11-19 14:32:36,378 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[486425,486438] [2021-11-19 14:32:36,378 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[486590,486603] [2021-11-19 14:32:36,379 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[486756,486769] [2021-11-19 14:32:36,379 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[486921,486934] [2021-11-19 14:32:36,380 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[487088,487101] [2021-11-19 14:32:36,380 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[487248,487261] [2021-11-19 14:32:36,381 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[487410,487423] [2021-11-19 14:32:36,381 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[487569,487582] [2021-11-19 14:32:36,381 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[487715,487728] [2021-11-19 14:32:36,382 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[487858,487871] [2021-11-19 14:32:36,382 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[488002,488015] [2021-11-19 14:32:36,383 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[488145,488158] [2021-11-19 14:32:36,383 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[488289,488302] [2021-11-19 14:32:36,383 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[488430,488443] [2021-11-19 14:32:36,384 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[488568,488581] [2021-11-19 14:32:36,384 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[488726,488739] [2021-11-19 14:32:36,385 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[488885,488898] [2021-11-19 14:32:36,385 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[489041,489054] [2021-11-19 14:32:36,386 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[489190,489203] [2021-11-19 14:32:36,386 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[489342,489355] [2021-11-19 14:32:36,386 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[489493,489506] [2021-11-19 14:32:36,387 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[489642,489655] [2021-11-19 14:32:36,387 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[489794,489807] [2021-11-19 14:32:36,388 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[489942,489955] [2021-11-19 14:32:36,388 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[490095,490108] [2021-11-19 14:32:36,388 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[490246,490259] [2021-11-19 14:32:36,389 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[490396,490409] [2021-11-19 14:32:36,389 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[490543,490556] [2021-11-19 14:32:36,390 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[490694,490707] [2021-11-19 14:32:36,390 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[490845,490858] [2021-11-19 14:32:36,395 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[490993,491006] [2021-11-19 14:32:36,396 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[491159,491172] [2021-11-19 14:32:36,396 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[491328,491341] [2021-11-19 14:32:36,397 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[491495,491508] [2021-11-19 14:32:36,397 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[491663,491676] [2021-11-19 14:32:36,398 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[491813,491826] [2021-11-19 14:32:36,398 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[491960,491973] [2021-11-19 14:32:36,399 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[492121,492134] [2021-11-19 14:32:36,399 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[492291,492304] [2021-11-19 14:32:36,399 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_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[492453,492466] [2021-11-19 14:32:36,407 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 14:32:36,878 INFO L208 MainTranslator]: Completed translation [2021-11-19 14:32:36,879 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:32:36 WrapperNode [2021-11-19 14:32:36,879 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 14:32:36,880 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-19 14:32:36,880 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-19 14:32:36,880 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-19 14:32:36,888 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:32:36" (1/1) ... [2021-11-19 14:32:37,032 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:32:36" (1/1) ... [2021-11-19 14:32:37,376 INFO L137 Inliner]: procedures = 729, calls = 4113, calls flagged for inlining = 352, calls inlined = 254, statements flattened = 7929 [2021-11-19 14:32:37,378 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-19 14:32:37,379 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-19 14:32:37,379 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-19 14:32:37,380 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-19 14:32:37,389 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:32:36" (1/1) ... [2021-11-19 14:32:37,390 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:32:36" (1/1) ... [2021-11-19 14:32:37,429 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:32:36" (1/1) ... [2021-11-19 14:32:37,430 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:32:36" (1/1) ... [2021-11-19 14:32:37,594 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:32:36" (1/1) ... [2021-11-19 14:32:37,625 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:32:36" (1/1) ... [2021-11-19 14:32:37,666 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:32:36" (1/1) ... [2021-11-19 14:32:37,713 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-19 14:32:37,715 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-19 14:32:37,715 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-19 14:32:37,715 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-19 14:32:37,716 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:32:36" (1/1) ... [2021-11-19 14:32:37,724 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 14:32:37,736 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 14:32:37,756 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-19 14:32:37,786 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-19 14:32:37,804 INFO L130 BoogieDeclarations]: Found specification of procedure put_bh___2 [2021-11-19 14:32:37,804 INFO L138 BoogieDeclarations]: Found implementation of procedure put_bh___2 [2021-11-19 14:32:37,804 INFO L130 BoogieDeclarations]: Found specification of procedure put_bh___3 [2021-11-19 14:32:37,804 INFO L138 BoogieDeclarations]: Found implementation of procedure put_bh___3 [2021-11-19 14:32:37,805 INFO L130 BoogieDeclarations]: Found specification of procedure set_nlink [2021-11-19 14:32:37,805 INFO L138 BoogieDeclarations]: Found implementation of procedure set_nlink [2021-11-19 14:32:37,805 INFO L130 BoogieDeclarations]: Found specification of procedure zlib_uncompress [2021-11-19 14:32:37,805 INFO L138 BoogieDeclarations]: Found implementation of procedure zlib_uncompress [2021-11-19 14:32:37,805 INFO L130 BoogieDeclarations]: Found specification of procedure strncmp [2021-11-19 14:32:37,805 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_coherent_check_final_state [2021-11-19 14:32:37,805 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_coherent_check_final_state [2021-11-19 14:32:37,806 INFO L130 BoogieDeclarations]: Found specification of procedure i_size_read [2021-11-19 14:32:37,806 INFO L138 BoogieDeclarations]: Found implementation of procedure i_size_read [2021-11-19 14:32:37,806 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-19 14:32:37,806 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-19 14:32:37,806 INFO L130 BoogieDeclarations]: Found specification of procedure lowmem_page_address [2021-11-19 14:32:37,806 INFO L138 BoogieDeclarations]: Found implementation of procedure lowmem_page_address [2021-11-19 14:32:37,806 INFO L130 BoogieDeclarations]: Found specification of procedure ll_rw_block [2021-11-19 14:32:37,807 INFO L138 BoogieDeclarations]: Found implementation of procedure ll_rw_block [2021-11-19 14:32:37,807 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-19 14:32:37,807 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-19 14:32:37,807 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_mmc_sdio_func_check_final_state [2021-11-19 14:32:37,807 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_mmc_sdio_func_check_final_state [2021-11-19 14:32:37,807 INFO L130 BoogieDeclarations]: Found specification of procedure __might_sleep [2021-11-19 14:32:37,807 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_sleep [2021-11-19 14:32:37,808 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-11-19 14:32:37,808 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-11-19 14:32:37,808 INFO L130 BoogieDeclarations]: Found specification of procedure squashfs_finish_page [2021-11-19 14:32:37,808 INFO L138 BoogieDeclarations]: Found implementation of procedure squashfs_finish_page [2021-11-19 14:32:37,808 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_arch_io_check_final_state [2021-11-19 14:32:37,808 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_arch_io_check_final_state [2021-11-19 14:32:37,809 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_module_check_final_state [2021-11-19 14:32:37,809 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_module_check_final_state [2021-11-19 14:32:37,809 INFO L130 BoogieDeclarations]: Found specification of procedure squashfs_xz_uncompress [2021-11-19 14:32:37,809 INFO L138 BoogieDeclarations]: Found implementation of procedure squashfs_xz_uncompress [2021-11-19 14:32:37,809 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_unlock_meta_index_mutex_of_squashfs_sb_info [2021-11-19 14:32:37,809 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_unlock_meta_index_mutex_of_squashfs_sb_info [2021-11-19 14:32:37,809 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-11-19 14:32:37,810 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-11-19 14:32:37,810 INFO L130 BoogieDeclarations]: Found specification of procedure squashfs_copy_data [2021-11-19 14:32:37,810 INFO L138 BoogieDeclarations]: Found implementation of procedure squashfs_copy_data [2021-11-19 14:32:37,810 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-19 14:32:37,810 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-19 14:32:37,810 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_queue_check_final_state [2021-11-19 14:32:37,810 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_queue_check_final_state [2021-11-19 14:32:37,811 INFO L130 BoogieDeclarations]: Found specification of procedure destroy_inodecache [2021-11-19 14:32:37,811 INFO L138 BoogieDeclarations]: Found implementation of procedure destroy_inodecache [2021-11-19 14:32:37,811 INFO L130 BoogieDeclarations]: Found specification of procedure squashfs_read_inode [2021-11-19 14:32:37,811 INFO L138 BoogieDeclarations]: Found implementation of procedure squashfs_read_inode [2021-11-19 14:32:37,811 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-19 14:32:37,811 INFO L130 BoogieDeclarations]: Found specification of procedure lzo_free [2021-11-19 14:32:37,811 INFO L138 BoogieDeclarations]: Found implementation of procedure lzo_free [2021-11-19 14:32:37,812 INFO L130 BoogieDeclarations]: Found specification of procedure init_special_inode [2021-11-19 14:32:37,812 INFO L138 BoogieDeclarations]: Found implementation of procedure init_special_inode [2021-11-19 14:32:37,812 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-19 14:32:37,812 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-19 14:32:37,812 INFO L130 BoogieDeclarations]: Found specification of procedure zlib_free [2021-11-19 14:32:37,812 INFO L138 BoogieDeclarations]: Found implementation of procedure zlib_free [2021-11-19 14:32:37,813 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2021-11-19 14:32:37,813 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2021-11-19 14:32:37,813 INFO L130 BoogieDeclarations]: Found specification of procedure squashfs_frag_lookup [2021-11-19 14:32:37,813 INFO L138 BoogieDeclarations]: Found implementation of procedure squashfs_frag_lookup [2021-11-19 14:32:37,813 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_request_check_final_state [2021-11-19 14:32:37,813 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_request_check_final_state [2021-11-19 14:32:37,813 INFO L130 BoogieDeclarations]: Found specification of procedure schedule [2021-11-19 14:32:37,814 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule [2021-11-19 14:32:37,814 INFO L130 BoogieDeclarations]: Found specification of procedure init_once [2021-11-19 14:32:37,814 INFO L138 BoogieDeclarations]: Found implementation of procedure init_once [2021-11-19 14:32:37,814 INFO L130 BoogieDeclarations]: Found specification of procedure sb_bread [2021-11-19 14:32:37,814 INFO L138 BoogieDeclarations]: Found implementation of procedure sb_bread [2021-11-19 14:32:37,814 INFO L130 BoogieDeclarations]: Found specification of procedure squashfs_xz_init [2021-11-19 14:32:37,814 INFO L138 BoogieDeclarations]: Found implementation of procedure squashfs_xz_init [2021-11-19 14:32:37,815 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_in_interrupt_context [2021-11-19 14:32:37,815 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_in_interrupt_context [2021-11-19 14:32:37,815 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-11-19 14:32:37,815 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-11-19 14:32:37,815 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_bh_check_final_state [2021-11-19 14:32:37,815 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_bh_check_final_state [2021-11-19 14:32:37,816 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_genhd_check_final_state [2021-11-19 14:32:37,816 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_genhd_check_final_state [2021-11-19 14:32:37,816 INFO L130 BoogieDeclarations]: Found specification of procedure read_indexes [2021-11-19 14:32:37,816 INFO L138 BoogieDeclarations]: Found implementation of procedure read_indexes [2021-11-19 14:32:37,816 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_after_alloc [2021-11-19 14:32:37,816 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_after_alloc [2021-11-19 14:32:37,816 INFO L130 BoogieDeclarations]: Found specification of procedure new_decode_dev [2021-11-19 14:32:37,817 INFO L138 BoogieDeclarations]: Found implementation of procedure new_decode_dev [2021-11-19 14:32:37,817 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-19 14:32:37,817 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-19 14:32:37,817 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_register_reset_error_counter [2021-11-19 14:32:37,817 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_register_reset_error_counter [2021-11-19 14:32:37,817 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2021-11-19 14:32:37,817 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2021-11-19 14:32:37,818 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_to_wait_event [2021-11-19 14:32:37,818 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_to_wait_event [2021-11-19 14:32:37,818 INFO L130 BoogieDeclarations]: Found specification of procedure squashfs_i [2021-11-19 14:32:37,818 INFO L138 BoogieDeclarations]: Found implementation of procedure squashfs_i [2021-11-19 14:32:37,818 INFO L130 BoogieDeclarations]: Found specification of procedure vfree [2021-11-19 14:32:37,818 INFO L138 BoogieDeclarations]: Found implementation of procedure vfree [2021-11-19 14:32:37,818 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_lib_idr_check_final_state [2021-11-19 14:32:37,819 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_lib_idr_check_final_state [2021-11-19 14:32:37,819 INFO L130 BoogieDeclarations]: Found specification of procedure squashfs_next_page [2021-11-19 14:32:37,819 INFO L138 BoogieDeclarations]: Found implementation of procedure squashfs_next_page [2021-11-19 14:32:37,819 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_srcu_check_final_state [2021-11-19 14:32:37,819 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_srcu_check_final_state [2021-11-19 14:32:37,819 INFO L130 BoogieDeclarations]: Found specification of procedure squashfs_export_iget [2021-11-19 14:32:37,819 INFO L138 BoogieDeclarations]: Found implementation of procedure squashfs_export_iget [2021-11-19 14:32:37,820 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-19 14:32:37,820 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_lock_meta_index_mutex_of_squashfs_sb_info [2021-11-19 14:32:37,820 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_lock_meta_index_mutex_of_squashfs_sb_info [2021-11-19 14:32:37,820 INFO L130 BoogieDeclarations]: Found specification of procedure squashfs_user_list [2021-11-19 14:32:37,820 INFO L138 BoogieDeclarations]: Found implementation of procedure squashfs_user_list [2021-11-19 14:32:37,820 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_calloc [2021-11-19 14:32:37,821 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_calloc [2021-11-19 14:32:37,821 INFO L130 BoogieDeclarations]: Found specification of procedure lzo_uncompress [2021-11-19 14:32:37,821 INFO L138 BoogieDeclarations]: Found implementation of procedure lzo_uncompress [2021-11-19 14:32:37,821 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-19 14:32:37,821 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-11-19 14:32:37,821 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-11-19 14:32:37,821 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-19 14:32:37,822 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-19 14:32:37,822 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2021-11-19 14:32:37,822 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2021-11-19 14:32:37,822 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-19 14:32:37,822 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-19 14:32:37,822 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2021-11-19 14:32:37,823 INFO L130 BoogieDeclarations]: Found specification of procedure squashfs_statfs [2021-11-19 14:32:37,823 INFO L138 BoogieDeclarations]: Found implementation of procedure squashfs_statfs [2021-11-19 14:32:37,823 INFO L130 BoogieDeclarations]: Found specification of procedure release_meta_index [2021-11-19 14:32:37,823 INFO L138 BoogieDeclarations]: Found implementation of procedure release_meta_index [2021-11-19 14:32:37,823 INFO L130 BoogieDeclarations]: Found specification of procedure kmap_atomic [2021-11-19 14:32:37,823 INFO L138 BoogieDeclarations]: Found implementation of procedure kmap_atomic [2021-11-19 14:32:37,823 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_register_reset_error_counter [2021-11-19 14:32:37,824 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_register_reset_error_counter [2021-11-19 14:32:37,824 INFO L130 BoogieDeclarations]: Found specification of procedure squashfs_cache_delete [2021-11-19 14:32:37,824 INFO L138 BoogieDeclarations]: Found implementation of procedure squashfs_cache_delete [2021-11-19 14:32:37,824 INFO L130 BoogieDeclarations]: Found specification of procedure lz4_comp_opts [2021-11-19 14:32:37,824 INFO L138 BoogieDeclarations]: Found implementation of procedure lz4_comp_opts [2021-11-19 14:32:37,824 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2021-11-19 14:32:37,824 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2021-11-19 14:32:37,825 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2021-11-19 14:32:37,825 INFO L130 BoogieDeclarations]: Found specification of procedure finish_wait [2021-11-19 14:32:37,825 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_wait [2021-11-19 14:32:37,825 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-19 14:32:37,825 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-19 14:32:37,825 INFO L130 BoogieDeclarations]: Found specification of procedure squashfs_read_metadata [2021-11-19 14:32:37,825 INFO L138 BoogieDeclarations]: Found implementation of procedure squashfs_read_metadata [2021-11-19 14:32:37,826 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-19 14:32:37,826 INFO L130 BoogieDeclarations]: Found specification of procedure squashfs_read_data [2021-11-19 14:32:37,826 INFO L138 BoogieDeclarations]: Found implementation of procedure squashfs_read_data [2021-11-19 14:32:37,826 INFO L130 BoogieDeclarations]: Found specification of procedure kill_block_super [2021-11-19 14:32:37,826 INFO L138 BoogieDeclarations]: Found implementation of procedure kill_block_super [2021-11-19 14:32:37,826 INFO L130 BoogieDeclarations]: Found specification of procedure unlock_page [2021-11-19 14:32:37,826 INFO L138 BoogieDeclarations]: Found implementation of procedure unlock_page [2021-11-19 14:32:37,827 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-19 14:32:37,827 INFO L130 BoogieDeclarations]: Found specification of procedure dir_emit [2021-11-19 14:32:37,827 INFO L138 BoogieDeclarations]: Found implementation of procedure dir_emit [2021-11-19 14:32:37,827 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-19 14:32:37,827 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-19 14:32:37,827 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2021-11-19 14:32:37,827 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-19 14:32:37,828 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-19 14:32:37,828 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-19 14:32:37,828 INFO L130 BoogieDeclarations]: Found specification of procedure squashfs_security_list [2021-11-19 14:32:37,828 INFO L138 BoogieDeclarations]: Found implementation of procedure squashfs_security_list [2021-11-19 14:32:37,828 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-11-19 14:32:37,828 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-11-19 14:32:37,829 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_lock_mutex_of_squashfs_stream [2021-11-19 14:32:37,829 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_lock_mutex_of_squashfs_stream [2021-11-19 14:32:37,829 INFO L130 BoogieDeclarations]: Found specification of procedure SetPageError [2021-11-19 14:32:37,829 INFO L138 BoogieDeclarations]: Found implementation of procedure SetPageError [2021-11-19 14:32:37,829 INFO L130 BoogieDeclarations]: Found specification of procedure squashfs_iget [2021-11-19 14:32:37,829 INFO L138 BoogieDeclarations]: Found implementation of procedure squashfs_iget [2021-11-19 14:32:37,829 INFO L130 BoogieDeclarations]: Found specification of procedure squashfs_xattr_get [2021-11-19 14:32:37,830 INFO L138 BoogieDeclarations]: Found implementation of procedure squashfs_xattr_get [2021-11-19 14:32:37,830 INFO L130 BoogieDeclarations]: Found specification of procedure lzo_init [2021-11-19 14:32:37,830 INFO L138 BoogieDeclarations]: Found implementation of procedure lzo_init [2021-11-19 14:32:37,830 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-19 14:32:37,830 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-19 14:32:37,830 INFO L130 BoogieDeclarations]: Found specification of procedure squashfs_get_id [2021-11-19 14:32:37,830 INFO L138 BoogieDeclarations]: Found implementation of procedure squashfs_get_id [2021-11-19 14:32:37,831 INFO L130 BoogieDeclarations]: Found specification of procedure kcalloc [2021-11-19 14:32:37,831 INFO L138 BoogieDeclarations]: Found implementation of procedure kcalloc [2021-11-19 14:32:37,831 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_sock_check_final_state [2021-11-19 14:32:37,831 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_sock_check_final_state [2021-11-19 14:32:37,831 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_for_read_section [2021-11-19 14:32:37,831 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_for_read_section [2021-11-19 14:32:37,832 INFO L130 BoogieDeclarations]: Found specification of procedure ERR_PTR [2021-11-19 14:32:37,832 INFO L138 BoogieDeclarations]: Found implementation of procedure ERR_PTR [2021-11-19 14:32:37,832 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_gadget_check_final_state [2021-11-19 14:32:37,832 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_gadget_check_final_state [2021-11-19 14:32:37,832 INFO L130 BoogieDeclarations]: Found specification of procedure squashfs_copy_cache [2021-11-19 14:32:37,832 INFO L138 BoogieDeclarations]: Found implementation of procedure squashfs_copy_cache [2021-11-19 14:32:37,832 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-19 14:32:37,833 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-11-19 14:32:37,833 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-11-19 14:32:37,833 INFO L130 BoogieDeclarations]: Found specification of procedure generic_read_dir [2021-11-19 14:32:37,833 INFO L138 BoogieDeclarations]: Found implementation of procedure generic_read_dir [2021-11-19 14:32:37,833 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_fs_sysfs_check_final_state [2021-11-19 14:32:37,833 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_fs_sysfs_check_final_state [2021-11-19 14:32:37,833 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-19 14:32:37,834 INFO L130 BoogieDeclarations]: Found specification of procedure page_follow_link_light [2021-11-19 14:32:37,834 INFO L138 BoogieDeclarations]: Found implementation of procedure page_follow_link_light [2021-11-19 14:32:37,834 INFO L130 BoogieDeclarations]: Found specification of procedure put_bh [2021-11-19 14:32:37,834 INFO L138 BoogieDeclarations]: Found implementation of procedure put_bh [2021-11-19 14:32:37,834 INFO L130 BoogieDeclarations]: Found specification of procedure squashfs_xz_free [2021-11-19 14:32:37,834 INFO L138 BoogieDeclarations]: Found implementation of procedure squashfs_xz_free [2021-11-19 14:32:37,835 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-19 14:32:37,835 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-19 14:32:37,835 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2021-11-19 14:32:37,835 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-19 14:32:37,835 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-19 14:32:37,835 INFO L130 BoogieDeclarations]: Found specification of procedure squashfs_symlink_readpage [2021-11-19 14:32:37,835 INFO L138 BoogieDeclarations]: Found implementation of procedure squashfs_symlink_readpage [2021-11-19 14:32:37,836 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2021-11-19 14:32:37,836 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2021-11-19 14:32:37,836 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_rtnetlink_check_final_state [2021-11-19 14:32:37,836 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_rtnetlink_check_final_state [2021-11-19 14:32:37,836 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-11-19 14:32:37,836 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-11-19 14:32:37,836 INFO L130 BoogieDeclarations]: Found specification of procedure squashfs_trusted_list [2021-11-19 14:32:37,837 INFO L138 BoogieDeclarations]: Found implementation of procedure squashfs_trusted_list [2021-11-19 14:32:37,837 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-11-19 14:32:37,837 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-11-19 14:32:37,837 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_check_final_state [2021-11-19 14:32:37,838 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_check_final_state [2021-11-19 14:32:37,838 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2021-11-19 14:32:37,838 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2021-11-19 14:32:37,838 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_urb_check_final_state [2021-11-19 14:32:37,838 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_urb_check_final_state [2021-11-19 14:32:37,838 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_nonatomic [2021-11-19 14:32:37,838 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_nonatomic [2021-11-19 14:32:37,839 INFO L130 BoogieDeclarations]: Found specification of procedure squashfs_decompressor_destroy [2021-11-19 14:32:37,839 INFO L138 BoogieDeclarations]: Found implementation of procedure squashfs_decompressor_destroy [2021-11-19 14:32:37,839 INFO L130 BoogieDeclarations]: Found specification of procedure squashfs_cache_get [2021-11-19 14:32:37,839 INFO L138 BoogieDeclarations]: Found implementation of procedure squashfs_cache_get [2021-11-19 14:32:37,839 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-11-19 14:32:37,839 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-11-19 14:32:37,840 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_rwlock_check_final_state [2021-11-19 14:32:37,840 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_rwlock_check_final_state [2021-11-19 14:32:37,840 INFO L130 BoogieDeclarations]: Found specification of procedure squashfs_destroy_inode [2021-11-19 14:32:37,840 INFO L138 BoogieDeclarations]: Found implementation of procedure squashfs_destroy_inode [2021-11-19 14:32:37,840 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-11-19 14:32:37,840 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-11-19 14:32:37,840 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2021-11-19 14:32:37,841 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2021-11-19 14:32:37,841 INFO L130 BoogieDeclarations]: Found specification of procedure squashfs_readdir [2021-11-19 14:32:37,841 INFO L138 BoogieDeclarations]: Found implementation of procedure squashfs_readdir [2021-11-19 14:32:37,841 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_fs_char_dev_check_final_state [2021-11-19 14:32:37,841 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_fs_char_dev_check_final_state [2021-11-19 14:32:37,841 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-11-19 14:32:37,842 INFO L130 BoogieDeclarations]: Found specification of procedure squashfs_first_page [2021-11-19 14:32:37,842 INFO L138 BoogieDeclarations]: Found implementation of procedure squashfs_first_page [2021-11-19 14:32:37,842 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2021-11-19 14:32:37,842 INFO L130 BoogieDeclarations]: Found specification of procedure squashfs_readpage [2021-11-19 14:32:37,842 INFO L138 BoogieDeclarations]: Found implementation of procedure squashfs_readpage [2021-11-19 14:32:37,842 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2021-11-19 14:32:37,842 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2021-11-19 14:32:37,843 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-19 14:32:37,843 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-19 14:32:37,843 INFO L130 BoogieDeclarations]: Found specification of procedure SetPageUptodate [2021-11-19 14:32:37,843 INFO L138 BoogieDeclarations]: Found implementation of procedure SetPageUptodate [2021-11-19 14:32:37,843 INFO L130 BoogieDeclarations]: Found specification of procedure squashfs_cache_put [2021-11-19 14:32:37,843 INFO L138 BoogieDeclarations]: Found implementation of procedure squashfs_cache_put [2021-11-19 14:32:37,844 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_95 [2021-11-19 14:32:37,844 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_95 [2021-11-19 14:32:37,844 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_drivers_base_class_check_final_state [2021-11-19 14:32:37,844 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_drivers_base_class_check_final_state [2021-11-19 14:32:37,844 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_96 [2021-11-19 14:32:37,844 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_96 [2021-11-19 14:32:37,844 INFO L130 BoogieDeclarations]: Found specification of procedure lz4_init [2021-11-19 14:32:37,845 INFO L138 BoogieDeclarations]: Found implementation of procedure lz4_init [2021-11-19 14:32:37,845 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec [2021-11-19 14:32:37,845 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec [2021-11-19 14:32:37,845 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2021-11-19 14:32:37,845 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2021-11-19 14:32:37,845 INFO L130 BoogieDeclarations]: Found specification of procedure zlib_init [2021-11-19 14:32:37,845 INFO L138 BoogieDeclarations]: Found implementation of procedure zlib_init [2021-11-19 14:32:37,846 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-11-19 14:32:37,846 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-11-19 14:32:37,846 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_sched_check_final_state [2021-11-19 14:32:37,846 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_sched_check_final_state [2021-11-19 14:32:37,846 INFO L130 BoogieDeclarations]: Found specification of procedure sb_getblk [2021-11-19 14:32:37,846 INFO L138 BoogieDeclarations]: Found implementation of procedure sb_getblk [2021-11-19 14:32:37,847 INFO L130 BoogieDeclarations]: Found specification of procedure squashfs_xz_comp_opts [2021-11-19 14:32:37,847 INFO L138 BoogieDeclarations]: Found implementation of procedure squashfs_xz_comp_opts [2021-11-19 14:32:37,847 INFO L130 BoogieDeclarations]: Found specification of procedure squashfs_put_super [2021-11-19 14:32:37,847 INFO L138 BoogieDeclarations]: Found implementation of procedure squashfs_put_super [2021-11-19 14:32:37,847 INFO L130 BoogieDeclarations]: Found specification of procedure __kunmap_atomic [2021-11-19 14:32:37,847 INFO L138 BoogieDeclarations]: Found implementation of procedure __kunmap_atomic [2021-11-19 14:32:37,848 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2021-11-19 14:32:39,208 INFO L236 CfgBuilder]: Building ICFG [2021-11-19 14:32:39,215 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-19 14:32:44,039 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-19 14:34:06,674 INFO L277 CfgBuilder]: Performing block encoding [2021-11-19 14:34:06,698 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-19 14:34:06,698 INFO L301 CfgBuilder]: Removed 4 assume(true) statements. [2021-11-19 14:34:06,705 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:34:06 BoogieIcfgContainer [2021-11-19 14:34:06,705 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-19 14:34:06,707 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-19 14:34:06,708 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-19 14:34:06,711 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-19 14:34:06,711 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 02:32:28" (1/3) ... [2021-11-19 14:34:06,712 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ee52bd7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 02:34:06, skipping insertion in model container [2021-11-19 14:34:06,712 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:32:36" (2/3) ... [2021-11-19 14:34:06,712 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ee52bd7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 02:34:06, skipping insertion in model container [2021-11-19 14:34:06,713 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:34:06" (3/3) ... [2021-11-19 14:34:06,714 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i [2021-11-19 14:34:06,720 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-19 14:34:06,720 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 33 error locations. [2021-11-19 14:34:06,784 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-19 14:34:06,791 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 [2021-11-19 14:34:06,791 INFO L340 AbstractCegarLoop]: Starting to check reachability of 33 error locations. [2021-11-19 14:34:06,873 INFO L276 IsEmpty]: Start isEmpty. Operand has 2538 states, 1733 states have (on average 1.3185227928447778) internal successors, (2285), 1826 states have internal predecessors, (2285), 643 states have call successors, (643), 129 states have call predecessors, (643), 128 states have return successors, (633), 616 states have call predecessors, (633), 633 states have call successors, (633) [2021-11-19 14:34:06,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-11-19 14:34:06,881 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:34:06,882 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-11-19 14:34:06,883 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_check_for_read_sectionErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-19 14:34:06,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:34:06,893 INFO L85 PathProgramCache]: Analyzing trace with hash -65146246, now seen corresponding path program 1 times [2021-11-19 14:34:06,913 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:34:06,913 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1234945936] [2021-11-19 14:34:06,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:34:06,914 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:34:06,914 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:34:06,920 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:34:06,925 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-19 14:34:08,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:34:08,963 INFO L263 TraceCheckSpWp]: Trace formula consists of 1646 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-19 14:34:08,971 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:34:09,507 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:34:09,507 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:34:10,145 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-11-19 14:34:10,146 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:34:10,146 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1234945936] [2021-11-19 14:34:10,147 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1234945936] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:34:10,147 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:34:10,147 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2021-11-19 14:34:10,149 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [561206629] [2021-11-19 14:34:10,150 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:34:10,158 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-19 14:34:10,158 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:34:10,199 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-19 14:34:10,200 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2021-11-19 14:34:10,208 INFO L87 Difference]: Start difference. First operand has 2538 states, 1733 states have (on average 1.3185227928447778) internal successors, (2285), 1826 states have internal predecessors, (2285), 643 states have call successors, (643), 129 states have call predecessors, (643), 128 states have return successors, (633), 616 states have call predecessors, (633), 633 states have call successors, (633) Second operand has 10 states, 10 states have (on average 4.0) internal successors, (40), 8 states have internal predecessors, (40), 2 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (8), 4 states have call predecessors, (8), 2 states have call successors, (8) [2021-11-19 14:34:28,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:34:28,234 INFO L93 Difference]: Finished difference Result 10022 states and 14627 transitions. [2021-11-19 14:34:28,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-19 14:34:28,237 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.0) internal successors, (40), 8 states have internal predecessors, (40), 2 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (8), 4 states have call predecessors, (8), 2 states have call successors, (8) Word has length 47 [2021-11-19 14:34:28,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:34:28,323 INFO L225 Difference]: With dead ends: 10022 [2021-11-19 14:34:28,323 INFO L226 Difference]: Without dead ends: 7446 [2021-11-19 14:34:28,362 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=45, Invalid=137, Unknown=0, NotChecked=0, Total=182 [2021-11-19 14:34:28,366 INFO L933 BasicCegarLoop]: 4942 mSDtfsCounter, 9699 mSDsluCounter, 25793 mSDsCounter, 0 mSdLazyCounter, 2239 mSolverCounterSat, 1952 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9729 SdHoareTripleChecker+Valid, 30735 SdHoareTripleChecker+Invalid, 4191 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 1952 IncrementalHoareTripleChecker+Valid, 2239 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.6s IncrementalHoareTripleChecker+Time [2021-11-19 14:34:28,367 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9729 Valid, 30735 Invalid, 4191 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [1952 Valid, 2239 Invalid, 0 Unknown, 0 Unchecked, 16.6s Time] [2021-11-19 14:34:28,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7446 states. [2021-11-19 14:34:28,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7446 to 4758. [2021-11-19 14:34:28,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4758 states, 3265 states have (on average 1.2808575803981623) internal successors, (4182), 3402 states have internal predecessors, (4182), 1224 states have call successors, (1224), 236 states have call predecessors, (1224), 236 states have return successors, (1239), 1187 states have call predecessors, (1239), 1222 states have call successors, (1239) [2021-11-19 14:34:28,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4758 states to 4758 states and 6645 transitions. [2021-11-19 14:34:28,876 INFO L78 Accepts]: Start accepts. Automaton has 4758 states and 6645 transitions. Word has length 47 [2021-11-19 14:34:28,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:34:28,877 INFO L470 AbstractCegarLoop]: Abstraction has 4758 states and 6645 transitions. [2021-11-19 14:34:28,878 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.0) internal successors, (40), 8 states have internal predecessors, (40), 2 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (8), 4 states have call predecessors, (8), 2 states have call successors, (8) [2021-11-19 14:34:28,878 INFO L276 IsEmpty]: Start isEmpty. Operand 4758 states and 6645 transitions. [2021-11-19 14:34:28,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-11-19 14:34:28,884 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:34:28,884 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-11-19 14:34:28,927 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-19 14:34:29,110 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:34:29,110 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_check_for_read_sectionErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-19 14:34:29,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:34:29,111 INFO L85 PathProgramCache]: Analyzing trace with hash -3106632, now seen corresponding path program 1 times [2021-11-19 14:34:29,114 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:34:29,114 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1134186541] [2021-11-19 14:34:29,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:34:29,114 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:34:29,114 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:34:29,119 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:34:29,142 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-19 14:34:31,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:34:31,272 INFO L263 TraceCheckSpWp]: Trace formula consists of 1646 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-19 14:34:31,276 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:34:31,464 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:34:31,464 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:34:31,668 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-11-19 14:34:31,668 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:34:31,669 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1134186541] [2021-11-19 14:34:31,669 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1134186541] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:34:31,669 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:34:31,669 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-11-19 14:34:31,670 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2138253003] [2021-11-19 14:34:31,670 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:34:31,672 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-19 14:34:31,672 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:34:31,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-19 14:34:31,673 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-19 14:34:31,673 INFO L87 Difference]: Start difference. First operand 4758 states and 6645 transitions. Second operand has 8 states, 8 states have (on average 4.875) internal successors, (39), 8 states have internal predecessors, (39), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-11-19 14:34:34,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:34:34,431 INFO L93 Difference]: Finished difference Result 10482 states and 14774 transitions. [2021-11-19 14:34:34,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-19 14:34:34,432 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.875) internal successors, (39), 8 states have internal predecessors, (39), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 47 [2021-11-19 14:34:34,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:34:34,492 INFO L225 Difference]: With dead ends: 10482 [2021-11-19 14:34:34,493 INFO L226 Difference]: Without dead ends: 5742 [2021-11-19 14:34:34,522 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 86 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2021-11-19 14:34:34,523 INFO L933 BasicCegarLoop]: 3835 mSDtfsCounter, 2257 mSDsluCounter, 15161 mSDsCounter, 0 mSdLazyCounter, 237 mSolverCounterSat, 830 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2465 SdHoareTripleChecker+Valid, 18996 SdHoareTripleChecker+Invalid, 1067 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 830 IncrementalHoareTripleChecker+Valid, 237 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2021-11-19 14:34:34,523 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2465 Valid, 18996 Invalid, 1067 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [830 Valid, 237 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2021-11-19 14:34:34,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5742 states. [2021-11-19 14:34:34,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5742 to 4604. [2021-11-19 14:34:34,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4604 states, 3166 states have (on average 1.281111813013266) internal successors, (4056), 3291 states have internal predecessors, (4056), 1175 states have call successors, (1175), 230 states have call predecessors, (1175), 230 states have return successors, (1188), 1146 states have call predecessors, (1188), 1173 states have call successors, (1188) [2021-11-19 14:34:34,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4604 states to 4604 states and 6419 transitions. [2021-11-19 14:34:34,982 INFO L78 Accepts]: Start accepts. Automaton has 4604 states and 6419 transitions. Word has length 47 [2021-11-19 14:34:34,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:34:34,983 INFO L470 AbstractCegarLoop]: Abstraction has 4604 states and 6419 transitions. [2021-11-19 14:34:34,983 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.875) internal successors, (39), 8 states have internal predecessors, (39), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-11-19 14:34:34,983 INFO L276 IsEmpty]: Start isEmpty. Operand 4604 states and 6419 transitions. [2021-11-19 14:34:34,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-11-19 14:34:34,987 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:34:34,987 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 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] [2021-11-19 14:34:35,031 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-19 14:34:35,202 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:34:35,202 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_check_for_read_sectionErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-19 14:34:35,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:34:35,203 INFO L85 PathProgramCache]: Analyzing trace with hash 1549467318, now seen corresponding path program 1 times [2021-11-19 14:34:35,206 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:34:35,206 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1609474473] [2021-11-19 14:34:35,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:34:35,206 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:34:35,207 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:34:35,209 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:34:35,251 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-19 14:34:37,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:34:37,246 INFO L263 TraceCheckSpWp]: Trace formula consists of 1678 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 14:34:37,250 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:34:37,709 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-19 14:34:37,710 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:34:38,019 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-19 14:34:38,019 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:34:38,019 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1609474473] [2021-11-19 14:34:38,019 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1609474473] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:34:38,019 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:34:38,020 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-19 14:34:38,020 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [326056856] [2021-11-19 14:34:38,020 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:34:38,021 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 14:34:38,021 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:34:38,021 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 14:34:38,021 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-19 14:34:38,022 INFO L87 Difference]: Start difference. First operand 4604 states and 6419 transitions. Second operand has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-11-19 14:34:38,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:34:38,301 INFO L93 Difference]: Finished difference Result 4604 states and 6419 transitions. [2021-11-19 14:34:38,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:34:38,302 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 63 [2021-11-19 14:34:38,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:34:38,339 INFO L225 Difference]: With dead ends: 4604 [2021-11-19 14:34:38,339 INFO L226 Difference]: Without dead ends: 4602 [2021-11-19 14:34:38,348 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 121 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-19 14:34:38,352 INFO L933 BasicCegarLoop]: 3420 mSDtfsCounter, 3391 mSDsluCounter, 6804 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3393 SdHoareTripleChecker+Valid, 10224 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 14:34:38,353 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3393 Valid, 10224 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 14:34:38,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4602 states. [2021-11-19 14:34:38,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4602 to 4602. [2021-11-19 14:34:38,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4602 states, 3165 states have (on average 1.280568720379147) internal successors, (4053), 3289 states have internal predecessors, (4053), 1175 states have call successors, (1175), 230 states have call predecessors, (1175), 230 states have return successors, (1188), 1146 states have call predecessors, (1188), 1173 states have call successors, (1188) [2021-11-19 14:34:38,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4602 states to 4602 states and 6416 transitions. [2021-11-19 14:34:38,706 INFO L78 Accepts]: Start accepts. Automaton has 4602 states and 6416 transitions. Word has length 63 [2021-11-19 14:34:38,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:34:38,709 INFO L470 AbstractCegarLoop]: Abstraction has 4602 states and 6416 transitions. [2021-11-19 14:34:38,710 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-11-19 14:34:38,711 INFO L276 IsEmpty]: Start isEmpty. Operand 4602 states and 6416 transitions. [2021-11-19 14:34:38,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2021-11-19 14:34:38,716 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:34:38,717 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:34:38,762 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-19 14:34:38,933 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:34:38,934 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_linux_arch_io_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-19 14:34:38,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:34:38,934 INFO L85 PathProgramCache]: Analyzing trace with hash -45646262, now seen corresponding path program 1 times [2021-11-19 14:34:38,937 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:34:38,937 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [529823810] [2021-11-19 14:34:38,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:34:38,938 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:34:38,940 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:34:38,941 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:34:38,987 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-19 14:34:40,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:34:40,824 INFO L263 TraceCheckSpWp]: Trace formula consists of 1661 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 14:34:40,828 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:34:41,321 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-19 14:34:41,321 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:34:41,647 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-19 14:34:41,648 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:34:41,648 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [529823810] [2021-11-19 14:34:41,648 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [529823810] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:34:41,648 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:34:41,648 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-19 14:34:41,648 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [540052160] [2021-11-19 14:34:41,648 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:34:41,649 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 14:34:41,649 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:34:41,650 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 14:34:41,650 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-19 14:34:41,650 INFO L87 Difference]: Start difference. First operand 4602 states and 6416 transitions. Second operand has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-11-19 14:34:41,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:34:41,903 INFO L93 Difference]: Finished difference Result 4602 states and 6416 transitions. [2021-11-19 14:34:41,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:34:41,904 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 65 [2021-11-19 14:34:41,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:34:41,943 INFO L225 Difference]: With dead ends: 4602 [2021-11-19 14:34:41,943 INFO L226 Difference]: Without dead ends: 4600 [2021-11-19 14:34:41,947 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 125 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-19 14:34:41,950 INFO L933 BasicCegarLoop]: 3419 mSDtfsCounter, 3368 mSDsluCounter, 6834 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3370 SdHoareTripleChecker+Valid, 10253 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 14:34:41,951 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3370 Valid, 10253 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 14:34:41,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4600 states. [2021-11-19 14:34:42,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4600 to 4600. [2021-11-19 14:34:42,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4600 states, 3164 states have (on average 1.2803413400758534) internal successors, (4051), 3287 states have internal predecessors, (4051), 1175 states have call successors, (1175), 230 states have call predecessors, (1175), 230 states have return successors, (1188), 1146 states have call predecessors, (1188), 1173 states have call successors, (1188) [2021-11-19 14:34:42,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4600 states to 4600 states and 6414 transitions. [2021-11-19 14:34:42,293 INFO L78 Accepts]: Start accepts. Automaton has 4600 states and 6414 transitions. Word has length 65 [2021-11-19 14:34:42,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:34:42,294 INFO L470 AbstractCegarLoop]: Abstraction has 4600 states and 6414 transitions. [2021-11-19 14:34:42,294 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-11-19 14:34:42,295 INFO L276 IsEmpty]: Start isEmpty. Operand 4600 states and 6414 transitions. [2021-11-19 14:34:42,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-11-19 14:34:42,299 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:34:42,299 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 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] [2021-11-19 14:34:42,343 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-19 14:34:42,522 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:34:42,522 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_check_for_read_sectionErr1ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-19 14:34:42,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:34:42,523 INFO L85 PathProgramCache]: Analyzing trace with hash -2121609063, now seen corresponding path program 1 times [2021-11-19 14:34:42,525 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:34:42,525 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1649532821] [2021-11-19 14:34:42,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:34:42,526 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:34:42,526 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:34:42,528 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:34:42,569 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-19 14:34:44,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:34:44,382 INFO L263 TraceCheckSpWp]: Trace formula consists of 1682 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 14:34:44,385 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:34:44,860 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-19 14:34:44,860 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:34:45,169 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-19 14:34:45,169 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:34:45,169 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1649532821] [2021-11-19 14:34:45,169 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1649532821] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:34:45,170 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:34:45,170 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-19 14:34:45,170 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1150804918] [2021-11-19 14:34:45,170 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:34:45,171 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 14:34:45,171 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:34:45,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 14:34:45,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-19 14:34:45,172 INFO L87 Difference]: Start difference. First operand 4600 states and 6414 transitions. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-11-19 14:34:45,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:34:45,434 INFO L93 Difference]: Finished difference Result 4600 states and 6414 transitions. [2021-11-19 14:34:45,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:34:45,435 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 66 [2021-11-19 14:34:45,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:34:45,476 INFO L225 Difference]: With dead ends: 4600 [2021-11-19 14:34:45,476 INFO L226 Difference]: Without dead ends: 4598 [2021-11-19 14:34:45,480 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-19 14:34:45,481 INFO L933 BasicCegarLoop]: 3416 mSDtfsCounter, 3393 mSDsluCounter, 3403 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3395 SdHoareTripleChecker+Valid, 6819 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 14:34:45,481 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3395 Valid, 6819 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 14:34:45,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4598 states. [2021-11-19 14:34:45,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4598 to 4598. [2021-11-19 14:34:45,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4598 states, 3163 states have (on average 1.279797660448941) internal successors, (4048), 3285 states have internal predecessors, (4048), 1175 states have call successors, (1175), 230 states have call predecessors, (1175), 230 states have return successors, (1188), 1146 states have call predecessors, (1188), 1173 states have call successors, (1188) [2021-11-19 14:34:45,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4598 states to 4598 states and 6411 transitions. [2021-11-19 14:34:45,948 INFO L78 Accepts]: Start accepts. Automaton has 4598 states and 6411 transitions. Word has length 66 [2021-11-19 14:34:45,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:34:45,948 INFO L470 AbstractCegarLoop]: Abstraction has 4598 states and 6411 transitions. [2021-11-19 14:34:45,949 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-11-19 14:34:45,949 INFO L276 IsEmpty]: Start isEmpty. Operand 4598 states and 6411 transitions. [2021-11-19 14:34:45,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-11-19 14:34:45,950 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:34:45,950 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:34:45,994 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-19 14:34:46,158 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:34:46,159 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_check_for_read_sectionErr2ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-19 14:34:46,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:34:46,159 INFO L85 PathProgramCache]: Analyzing trace with hash -110838174, now seen corresponding path program 1 times [2021-11-19 14:34:46,162 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:34:46,162 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [119514529] [2021-11-19 14:34:46,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:34:46,162 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:34:46,162 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:34:46,164 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:34:46,170 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-19 14:34:48,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:34:48,105 INFO L263 TraceCheckSpWp]: Trace formula consists of 1686 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 14:34:48,108 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:34:48,533 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-19 14:34:48,534 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:34:48,837 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-19 14:34:48,837 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:34:48,837 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [119514529] [2021-11-19 14:34:48,837 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [119514529] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:34:48,838 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:34:48,838 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-19 14:34:48,838 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1161254051] [2021-11-19 14:34:48,838 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:34:48,839 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 14:34:48,839 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:34:48,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 14:34:48,839 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-19 14:34:48,839 INFO L87 Difference]: Start difference. First operand 4598 states and 6411 transitions. Second operand has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-11-19 14:34:49,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:34:49,133 INFO L93 Difference]: Finished difference Result 4598 states and 6411 transitions. [2021-11-19 14:34:49,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:34:49,134 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 69 [2021-11-19 14:34:49,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:34:49,163 INFO L225 Difference]: With dead ends: 4598 [2021-11-19 14:34:49,163 INFO L226 Difference]: Without dead ends: 4596 [2021-11-19 14:34:49,169 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 133 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-19 14:34:49,170 INFO L933 BasicCegarLoop]: 3414 mSDtfsCounter, 3369 mSDsluCounter, 6812 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3371 SdHoareTripleChecker+Valid, 10226 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 14:34:49,175 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3371 Valid, 10226 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 14:34:49,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4596 states. [2021-11-19 14:34:49,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4596 to 4596. [2021-11-19 14:34:49,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4596 states, 3162 states have (on average 1.2792536369386465) internal successors, (4045), 3283 states have internal predecessors, (4045), 1175 states have call successors, (1175), 230 states have call predecessors, (1175), 230 states have return successors, (1188), 1146 states have call predecessors, (1188), 1173 states have call successors, (1188) [2021-11-19 14:34:49,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4596 states to 4596 states and 6408 transitions. [2021-11-19 14:34:49,549 INFO L78 Accepts]: Start accepts. Automaton has 4596 states and 6408 transitions. Word has length 69 [2021-11-19 14:34:49,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:34:49,549 INFO L470 AbstractCegarLoop]: Abstraction has 4596 states and 6408 transitions. [2021-11-19 14:34:49,549 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-11-19 14:34:49,549 INFO L276 IsEmpty]: Start isEmpty. Operand 4596 states and 6408 transitions. [2021-11-19 14:34:49,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2021-11-19 14:34:49,551 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:34:49,551 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:34:49,598 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-19 14:34:49,774 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:34:49,774 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_linux_block_genhd_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-19 14:34:49,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:34:49,775 INFO L85 PathProgramCache]: Analyzing trace with hash -1199083787, now seen corresponding path program 1 times [2021-11-19 14:34:49,778 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:34:49,778 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [399722791] [2021-11-19 14:34:49,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:34:49,778 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:34:49,778 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:34:49,782 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:34:49,822 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-19 14:34:51,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:34:51,445 INFO L263 TraceCheckSpWp]: Trace formula consists of 1670 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 14:34:51,448 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:34:51,889 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-19 14:34:51,889 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:34:52,171 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-19 14:34:52,172 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:34:52,172 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [399722791] [2021-11-19 14:34:52,172 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [399722791] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:34:52,172 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:34:52,172 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-19 14:34:52,172 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [174295823] [2021-11-19 14:34:52,172 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:34:52,173 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 14:34:52,173 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:34:52,173 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 14:34:52,173 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-19 14:34:52,174 INFO L87 Difference]: Start difference. First operand 4596 states and 6408 transitions. Second operand has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-11-19 14:34:52,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:34:52,459 INFO L93 Difference]: Finished difference Result 4596 states and 6408 transitions. [2021-11-19 14:34:52,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:34:52,460 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 71 [2021-11-19 14:34:52,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:34:52,481 INFO L225 Difference]: With dead ends: 4596 [2021-11-19 14:34:52,482 INFO L226 Difference]: Without dead ends: 4594 [2021-11-19 14:34:52,485 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 137 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-19 14:34:52,487 INFO L933 BasicCegarLoop]: 3413 mSDtfsCounter, 3359 mSDsluCounter, 3411 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3361 SdHoareTripleChecker+Valid, 6824 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 14:34:52,487 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3361 Valid, 6824 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 14:34:52,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4594 states. [2021-11-19 14:34:52,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4594 to 4594. [2021-11-19 14:34:52,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4594 states, 3161 states have (on average 1.2790256248022778) internal successors, (4043), 3281 states have internal predecessors, (4043), 1175 states have call successors, (1175), 230 states have call predecessors, (1175), 230 states have return successors, (1188), 1146 states have call predecessors, (1188), 1173 states have call successors, (1188) [2021-11-19 14:34:52,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4594 states to 4594 states and 6406 transitions. [2021-11-19 14:34:52,853 INFO L78 Accepts]: Start accepts. Automaton has 4594 states and 6406 transitions. Word has length 71 [2021-11-19 14:34:52,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:34:52,854 INFO L470 AbstractCegarLoop]: Abstraction has 4594 states and 6406 transitions. [2021-11-19 14:34:52,855 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-11-19 14:34:52,855 INFO L276 IsEmpty]: Start isEmpty. Operand 4594 states and 6406 transitions. [2021-11-19 14:34:52,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2021-11-19 14:34:52,857 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:34:52,857 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 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] [2021-11-19 14:34:52,906 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-19 14:34:53,082 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:34:53,082 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_check_for_read_sectionErr3ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-19 14:34:53,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:34:53,083 INFO L85 PathProgramCache]: Analyzing trace with hash 855850629, now seen corresponding path program 1 times [2021-11-19 14:34:53,085 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:34:53,085 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [642685875] [2021-11-19 14:34:53,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:34:53,086 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:34:53,086 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:34:53,087 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:34:53,127 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-19 14:34:54,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:34:54,771 INFO L263 TraceCheckSpWp]: Trace formula consists of 1690 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 14:34:54,773 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:34:55,212 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-19 14:34:55,212 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:34:55,535 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-19 14:34:55,535 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:34:55,536 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [642685875] [2021-11-19 14:34:55,536 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [642685875] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:34:55,536 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:34:55,536 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-19 14:34:55,536 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2132982910] [2021-11-19 14:34:55,537 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:34:55,537 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 14:34:55,538 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:34:55,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 14:34:55,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-19 14:34:55,538 INFO L87 Difference]: Start difference. First operand 4594 states and 6406 transitions. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-11-19 14:34:55,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:34:55,862 INFO L93 Difference]: Finished difference Result 4594 states and 6406 transitions. [2021-11-19 14:34:55,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:34:55,863 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 72 [2021-11-19 14:34:55,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:34:55,881 INFO L225 Difference]: With dead ends: 4594 [2021-11-19 14:34:55,881 INFO L226 Difference]: Without dead ends: 4592 [2021-11-19 14:34:55,884 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 139 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-19 14:34:55,885 INFO L933 BasicCegarLoop]: 3410 mSDtfsCounter, 3361 mSDsluCounter, 3407 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3363 SdHoareTripleChecker+Valid, 6817 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 14:34:55,885 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3363 Valid, 6817 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 14:34:55,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4592 states. [2021-11-19 14:34:56,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4592 to 4592. [2021-11-19 14:34:56,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4592 states, 3160 states have (on average 1.2784810126582278) internal successors, (4040), 3279 states have internal predecessors, (4040), 1175 states have call successors, (1175), 230 states have call predecessors, (1175), 230 states have return successors, (1188), 1146 states have call predecessors, (1188), 1173 states have call successors, (1188) [2021-11-19 14:34:56,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4592 states to 4592 states and 6403 transitions. [2021-11-19 14:34:56,231 INFO L78 Accepts]: Start accepts. Automaton has 4592 states and 6403 transitions. Word has length 72 [2021-11-19 14:34:56,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:34:56,232 INFO L470 AbstractCegarLoop]: Abstraction has 4592 states and 6403 transitions. [2021-11-19 14:34:56,232 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-11-19 14:34:56,233 INFO L276 IsEmpty]: Start isEmpty. Operand 4592 states and 6403 transitions. [2021-11-19 14:34:56,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2021-11-19 14:34:56,241 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:34:56,242 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:34:56,285 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-11-19 14:34:56,470 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:34:56,470 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_linux_block_queue_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-19 14:34:56,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:34:56,471 INFO L85 PathProgramCache]: Analyzing trace with hash -1248733445, now seen corresponding path program 1 times [2021-11-19 14:34:56,473 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:34:56,473 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1844339287] [2021-11-19 14:34:56,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:34:56,473 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:34:56,473 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:34:56,475 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:34:56,517 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-11-19 14:34:58,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:34:58,113 INFO L263 TraceCheckSpWp]: Trace formula consists of 1679 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 14:34:58,115 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:34:58,601 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-19 14:34:58,601 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:34:58,942 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-19 14:34:58,942 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:34:58,942 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1844339287] [2021-11-19 14:34:58,942 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1844339287] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:34:58,942 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:34:58,942 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-19 14:34:58,943 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1408409376] [2021-11-19 14:34:58,943 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:34:58,943 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 14:34:58,943 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:34:58,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 14:34:58,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-19 14:34:58,944 INFO L87 Difference]: Start difference. First operand 4592 states and 6403 transitions. Second operand has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2021-11-19 14:34:59,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:34:59,250 INFO L93 Difference]: Finished difference Result 4592 states and 6403 transitions. [2021-11-19 14:34:59,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:34:59,251 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 77 [2021-11-19 14:34:59,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:34:59,270 INFO L225 Difference]: With dead ends: 4592 [2021-11-19 14:34:59,271 INFO L226 Difference]: Without dead ends: 4590 [2021-11-19 14:34:59,275 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-19 14:34:59,277 INFO L933 BasicCegarLoop]: 3409 mSDtfsCounter, 3349 mSDsluCounter, 3407 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3351 SdHoareTripleChecker+Valid, 6816 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 14:34:59,278 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3351 Valid, 6816 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 14:34:59,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4590 states. [2021-11-19 14:34:59,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4590 to 4590. [2021-11-19 14:34:59,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4590 states, 3159 states have (on average 1.278252611585945) internal successors, (4038), 3277 states have internal predecessors, (4038), 1175 states have call successors, (1175), 230 states have call predecessors, (1175), 230 states have return successors, (1188), 1146 states have call predecessors, (1188), 1173 states have call successors, (1188) [2021-11-19 14:34:59,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4590 states to 4590 states and 6401 transitions. [2021-11-19 14:34:59,682 INFO L78 Accepts]: Start accepts. Automaton has 4590 states and 6401 transitions. Word has length 77 [2021-11-19 14:34:59,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:34:59,682 INFO L470 AbstractCegarLoop]: Abstraction has 4590 states and 6401 transitions. [2021-11-19 14:34:59,682 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2021-11-19 14:34:59,683 INFO L276 IsEmpty]: Start isEmpty. Operand 4590 states and 6401 transitions. [2021-11-19 14:34:59,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2021-11-19 14:34:59,684 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:34:59,685 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:34:59,725 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-11-19 14:34:59,898 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:34:59,898 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_linux_block_request_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-19 14:34:59,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:34:59,898 INFO L85 PathProgramCache]: Analyzing trace with hash 1541822229, now seen corresponding path program 1 times [2021-11-19 14:34:59,900 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:34:59,900 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [716206734] [2021-11-19 14:34:59,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:34:59,900 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:34:59,900 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:34:59,901 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:34:59,903 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-11-19 14:35:01,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:35:01,606 INFO L263 TraceCheckSpWp]: Trace formula consists of 1688 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 14:35:01,609 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:35:02,119 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-19 14:35:02,120 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:35:02,444 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-19 14:35:02,445 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:35:02,445 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [716206734] [2021-11-19 14:35:02,445 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [716206734] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:35:02,445 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:35:02,445 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-19 14:35:02,445 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1407351526] [2021-11-19 14:35:02,445 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:35:02,446 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 14:35:02,446 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:35:02,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 14:35:02,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-19 14:35:02,447 INFO L87 Difference]: Start difference. First operand 4590 states and 6401 transitions. Second operand has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2021-11-19 14:35:02,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:35:02,758 INFO L93 Difference]: Finished difference Result 4590 states and 6401 transitions. [2021-11-19 14:35:02,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:35:02,760 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 83 [2021-11-19 14:35:02,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:35:02,779 INFO L225 Difference]: With dead ends: 4590 [2021-11-19 14:35:02,780 INFO L226 Difference]: Without dead ends: 4588 [2021-11-19 14:35:02,783 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 161 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-19 14:35:02,784 INFO L933 BasicCegarLoop]: 3407 mSDtfsCounter, 3338 mSDsluCounter, 6810 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3340 SdHoareTripleChecker+Valid, 10217 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 14:35:02,787 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3340 Valid, 10217 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 14:35:02,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4588 states. [2021-11-19 14:35:03,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4588 to 4588. [2021-11-19 14:35:03,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4588 states, 3158 states have (on average 1.2780240658644713) internal successors, (4036), 3275 states have internal predecessors, (4036), 1175 states have call successors, (1175), 230 states have call predecessors, (1175), 230 states have return successors, (1188), 1146 states have call predecessors, (1188), 1173 states have call successors, (1188) [2021-11-19 14:35:03,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4588 states to 4588 states and 6399 transitions. [2021-11-19 14:35:03,222 INFO L78 Accepts]: Start accepts. Automaton has 4588 states and 6399 transitions. Word has length 83 [2021-11-19 14:35:03,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:35:03,223 INFO L470 AbstractCegarLoop]: Abstraction has 4588 states and 6399 transitions. [2021-11-19 14:35:03,223 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2021-11-19 14:35:03,223 INFO L276 IsEmpty]: Start isEmpty. Operand 4588 states and 6399 transitions. [2021-11-19 14:35:03,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2021-11-19 14:35:03,225 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:35:03,225 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:35:03,268 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-11-19 14:35:03,447 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:35:03,447 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_linux_drivers_base_class_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-19 14:35:03,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:35:03,448 INFO L85 PathProgramCache]: Analyzing trace with hash -1527502308, now seen corresponding path program 1 times [2021-11-19 14:35:03,450 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:35:03,450 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1446867856] [2021-11-19 14:35:03,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:35:03,450 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:35:03,450 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:35:03,453 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:35:03,493 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-11-19 14:35:05,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:35:05,130 INFO L263 TraceCheckSpWp]: Trace formula consists of 1697 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 14:35:05,132 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:35:05,653 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-19 14:35:05,654 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:35:05,997 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-19 14:35:05,997 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:35:05,997 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1446867856] [2021-11-19 14:35:05,997 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1446867856] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:35:05,998 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:35:05,998 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-19 14:35:05,998 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [609514464] [2021-11-19 14:35:05,998 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:35:05,999 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 14:35:05,999 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:35:06,000 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 14:35:06,000 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-19 14:35:06,000 INFO L87 Difference]: Start difference. First operand 4588 states and 6399 transitions. Second operand has 5 states, 5 states have (on average 17.6) internal successors, (88), 5 states have internal predecessors, (88), 2 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2021-11-19 14:35:06,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:35:06,253 INFO L93 Difference]: Finished difference Result 4588 states and 6399 transitions. [2021-11-19 14:35:06,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:35:06,254 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 5 states have internal predecessors, (88), 2 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 89 [2021-11-19 14:35:06,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:35:06,274 INFO L225 Difference]: With dead ends: 4588 [2021-11-19 14:35:06,274 INFO L226 Difference]: Without dead ends: 4586 [2021-11-19 14:35:06,277 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 177 GetRequests, 173 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-19 14:35:06,278 INFO L933 BasicCegarLoop]: 3405 mSDtfsCounter, 3333 mSDsluCounter, 3403 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3335 SdHoareTripleChecker+Valid, 6808 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 14:35:06,279 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3335 Valid, 6808 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 14:35:06,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4586 states. [2021-11-19 14:35:06,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4586 to 4586. [2021-11-19 14:35:06,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4586 states, 3157 states have (on average 1.277795375356351) internal successors, (4034), 3273 states have internal predecessors, (4034), 1175 states have call successors, (1175), 230 states have call predecessors, (1175), 230 states have return successors, (1188), 1146 states have call predecessors, (1188), 1173 states have call successors, (1188) [2021-11-19 14:35:06,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4586 states to 4586 states and 6397 transitions. [2021-11-19 14:35:06,658 INFO L78 Accepts]: Start accepts. Automaton has 4586 states and 6397 transitions. Word has length 89 [2021-11-19 14:35:06,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:35:06,659 INFO L470 AbstractCegarLoop]: Abstraction has 4586 states and 6397 transitions. [2021-11-19 14:35:06,659 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 5 states have internal predecessors, (88), 2 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2021-11-19 14:35:06,659 INFO L276 IsEmpty]: Start isEmpty. Operand 4586 states and 6397 transitions. [2021-11-19 14:35:06,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2021-11-19 14:35:06,661 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:35:06,662 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:35:06,705 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2021-11-19 14:35:06,886 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:35:06,886 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_linux_fs_char_dev_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-19 14:35:06,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:35:06,887 INFO L85 PathProgramCache]: Analyzing trace with hash -411156215, now seen corresponding path program 1 times [2021-11-19 14:35:06,888 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:35:06,888 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1023476032] [2021-11-19 14:35:06,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:35:06,889 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:35:06,889 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:35:06,890 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:35:06,930 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2021-11-19 14:35:08,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:35:08,822 INFO L263 TraceCheckSpWp]: Trace formula consists of 1706 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 14:35:08,825 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:35:09,409 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-19 14:35:09,409 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:35:09,746 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-19 14:35:09,746 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:35:09,747 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1023476032] [2021-11-19 14:35:09,747 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1023476032] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:35:09,747 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:35:09,747 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-19 14:35:09,747 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [288868173] [2021-11-19 14:35:09,747 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:35:09,748 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 14:35:09,748 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:35:09,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 14:35:09,748 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-19 14:35:09,748 INFO L87 Difference]: Start difference. First operand 4586 states and 6397 transitions. Second operand has 5 states, 5 states have (on average 19.2) internal successors, (96), 5 states have internal predecessors, (96), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2021-11-19 14:35:09,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:35:09,989 INFO L93 Difference]: Finished difference Result 4586 states and 6397 transitions. [2021-11-19 14:35:09,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:35:09,989 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 5 states have internal predecessors, (96), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 95 [2021-11-19 14:35:09,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:35:10,009 INFO L225 Difference]: With dead ends: 4586 [2021-11-19 14:35:10,009 INFO L226 Difference]: Without dead ends: 4584 [2021-11-19 14:35:10,012 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 189 GetRequests, 185 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-19 14:35:10,013 INFO L933 BasicCegarLoop]: 3403 mSDtfsCounter, 3322 mSDsluCounter, 6802 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3324 SdHoareTripleChecker+Valid, 10205 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 14:35:10,014 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3324 Valid, 10205 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 14:35:10,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4584 states. [2021-11-19 14:35:10,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4584 to 4584. [2021-11-19 14:35:10,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4584 states, 3156 states have (on average 1.2775665399239544) internal successors, (4032), 3271 states have internal predecessors, (4032), 1175 states have call successors, (1175), 230 states have call predecessors, (1175), 230 states have return successors, (1188), 1146 states have call predecessors, (1188), 1173 states have call successors, (1188) [2021-11-19 14:35:10,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4584 states to 4584 states and 6395 transitions. [2021-11-19 14:35:10,501 INFO L78 Accepts]: Start accepts. Automaton has 4584 states and 6395 transitions. Word has length 95 [2021-11-19 14:35:10,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:35:10,502 INFO L470 AbstractCegarLoop]: Abstraction has 4584 states and 6395 transitions. [2021-11-19 14:35:10,502 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 5 states have internal predecessors, (96), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2021-11-19 14:35:10,502 INFO L276 IsEmpty]: Start isEmpty. Operand 4584 states and 6395 transitions. [2021-11-19 14:35:10,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2021-11-19 14:35:10,506 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:35:10,506 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:35:10,549 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2021-11-19 14:35:10,722 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:35:10,722 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-19 14:35:10,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:35:10,723 INFO L85 PathProgramCache]: Analyzing trace with hash -843210056, now seen corresponding path program 1 times [2021-11-19 14:35:10,725 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:35:10,725 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [866333933] [2021-11-19 14:35:10,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:35:10,725 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:35:10,725 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:35:10,727 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:35:10,766 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2021-11-19 14:35:12,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:35:12,518 INFO L263 TraceCheckSpWp]: Trace formula consists of 1777 conjuncts, 29 conjunts are in the unsatisfiable core [2021-11-19 14:35:12,522 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:35:13,789 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2021-11-19 14:35:13,789 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:35:15,629 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2021-11-19 14:35:15,629 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:35:15,629 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [866333933] [2021-11-19 14:35:15,630 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [866333933] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:35:15,630 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:35:15,630 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12, 10] imperfect sequences [] total 19 [2021-11-19 14:35:15,630 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1108643740] [2021-11-19 14:35:15,630 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:35:15,630 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2021-11-19 14:35:15,630 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:35:15,631 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-11-19 14:35:15,631 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=285, Unknown=0, NotChecked=0, Total=342 [2021-11-19 14:35:15,631 INFO L87 Difference]: Start difference. First operand 4584 states and 6395 transitions. Second operand has 19 states, 16 states have (on average 4.1875) internal successors, (67), 14 states have internal predecessors, (67), 6 states have call successors, (20), 2 states have call predecessors, (20), 6 states have return successors, (20), 9 states have call predecessors, (20), 6 states have call successors, (20) [2021-11-19 14:35:18,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:35:18,209 INFO L93 Difference]: Finished difference Result 7603 states and 10642 transitions. [2021-11-19 14:35:18,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-19 14:35:18,210 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 16 states have (on average 4.1875) internal successors, (67), 14 states have internal predecessors, (67), 6 states have call successors, (20), 2 states have call predecessors, (20), 6 states have return successors, (20), 9 states have call predecessors, (20), 6 states have call successors, (20) Word has length 100 [2021-11-19 14:35:18,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:35:18,237 INFO L225 Difference]: With dead ends: 7603 [2021-11-19 14:35:18,237 INFO L226 Difference]: Without dead ends: 5162 [2021-11-19 14:35:18,251 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 201 GetRequests, 181 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=81, Invalid=381, Unknown=0, NotChecked=0, Total=462 [2021-11-19 14:35:18,252 INFO L933 BasicCegarLoop]: 4247 mSDtfsCounter, 510 mSDsluCounter, 53731 mSDsCounter, 0 mSdLazyCounter, 444 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 735 SdHoareTripleChecker+Valid, 57978 SdHoareTripleChecker+Invalid, 452 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 444 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2021-11-19 14:35:18,252 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [735 Valid, 57978 Invalid, 452 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [8 Valid, 444 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2021-11-19 14:35:18,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5162 states. [2021-11-19 14:35:18,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5162 to 4584. [2021-11-19 14:35:18,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4584 states, 3156 states have (on average 1.2772496831432192) internal successors, (4031), 3271 states have internal predecessors, (4031), 1175 states have call successors, (1175), 230 states have call predecessors, (1175), 230 states have return successors, (1188), 1146 states have call predecessors, (1188), 1173 states have call successors, (1188) [2021-11-19 14:35:18,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4584 states to 4584 states and 6394 transitions. [2021-11-19 14:35:18,767 INFO L78 Accepts]: Start accepts. Automaton has 4584 states and 6394 transitions. Word has length 100 [2021-11-19 14:35:18,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:35:18,768 INFO L470 AbstractCegarLoop]: Abstraction has 4584 states and 6394 transitions. [2021-11-19 14:35:18,768 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 16 states have (on average 4.1875) internal successors, (67), 14 states have internal predecessors, (67), 6 states have call successors, (20), 2 states have call predecessors, (20), 6 states have return successors, (20), 9 states have call predecessors, (20), 6 states have call successors, (20) [2021-11-19 14:35:18,768 INFO L276 IsEmpty]: Start isEmpty. Operand 4584 states and 6394 transitions. [2021-11-19 14:35:18,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2021-11-19 14:35:18,771 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:35:18,771 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:35:18,822 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2021-11-19 14:35:18,998 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:35:18,998 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-19 14:35:18,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:35:18,999 INFO L85 PathProgramCache]: Analyzing trace with hash -1987585461, now seen corresponding path program 1 times [2021-11-19 14:35:19,001 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:35:19,001 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2109514350] [2021-11-19 14:35:19,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:35:19,001 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:35:19,001 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:35:19,004 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:35:19,047 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2021-11-19 14:35:20,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:35:20,660 INFO L263 TraceCheckSpWp]: Trace formula consists of 1715 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 14:35:20,662 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:35:21,266 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-19 14:35:21,266 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:35:21,636 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-19 14:35:21,636 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:35:21,636 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2109514350] [2021-11-19 14:35:21,636 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2109514350] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:35:21,637 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:35:21,638 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-19 14:35:21,638 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1793808843] [2021-11-19 14:35:21,638 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:35:21,639 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 14:35:21,639 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:35:21,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 14:35:21,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-19 14:35:21,640 INFO L87 Difference]: Start difference. First operand 4584 states and 6394 transitions. Second operand has 5 states, 5 states have (on average 20.8) internal successors, (104), 5 states have internal predecessors, (104), 2 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2021-11-19 14:35:21,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:35:21,944 INFO L93 Difference]: Finished difference Result 4584 states and 6394 transitions. [2021-11-19 14:35:21,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:35:21,944 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 5 states have internal predecessors, (104), 2 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) Word has length 101 [2021-11-19 14:35:21,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:35:21,958 INFO L225 Difference]: With dead ends: 4584 [2021-11-19 14:35:21,958 INFO L226 Difference]: Without dead ends: 4582 [2021-11-19 14:35:21,960 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 201 GetRequests, 197 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-19 14:35:21,961 INFO L933 BasicCegarLoop]: 3400 mSDtfsCounter, 3313 mSDsluCounter, 6796 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3315 SdHoareTripleChecker+Valid, 10196 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 14:35:21,962 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3315 Valid, 10196 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 14:35:21,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4582 states. [2021-11-19 14:35:22,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4582 to 4582. [2021-11-19 14:35:22,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4582 states, 3155 states have (on average 1.2770206022187005) internal successors, (4029), 3269 states have internal predecessors, (4029), 1175 states have call successors, (1175), 230 states have call predecessors, (1175), 230 states have return successors, (1188), 1146 states have call predecessors, (1188), 1173 states have call successors, (1188) [2021-11-19 14:35:22,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4582 states to 4582 states and 6392 transitions. [2021-11-19 14:35:22,482 INFO L78 Accepts]: Start accepts. Automaton has 4582 states and 6392 transitions. Word has length 101 [2021-11-19 14:35:22,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:35:22,485 INFO L470 AbstractCegarLoop]: Abstraction has 4582 states and 6392 transitions. [2021-11-19 14:35:22,485 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 5 states have internal predecessors, (104), 2 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2021-11-19 14:35:22,485 INFO L276 IsEmpty]: Start isEmpty. Operand 4582 states and 6392 transitions. [2021-11-19 14:35:22,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2021-11-19 14:35:22,488 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:35:22,488 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:35:22,534 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2021-11-19 14:35:22,710 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:35:22,710 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-19 14:35:22,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:35:22,711 INFO L85 PathProgramCache]: Analyzing trace with hash -604703979, now seen corresponding path program 1 times [2021-11-19 14:35:22,712 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:35:22,713 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [757270949] [2021-11-19 14:35:22,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:35:22,713 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:35:22,713 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:35:22,714 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:35:22,755 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2021-11-19 14:35:24,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:35:24,660 INFO L263 TraceCheckSpWp]: Trace formula consists of 1788 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-19 14:35:24,663 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:35:25,353 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2021-11-19 14:35:25,353 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:35:25,819 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2021-11-19 14:35:25,820 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:35:25,820 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [757270949] [2021-11-19 14:35:25,820 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [757270949] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:35:25,820 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:35:25,820 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 6] imperfect sequences [] total 7 [2021-11-19 14:35:25,820 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [441461280] [2021-11-19 14:35:25,820 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:35:25,821 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-19 14:35:25,821 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:35:25,822 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-19 14:35:25,822 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-19 14:35:25,823 INFO L87 Difference]: Start difference. First operand 4582 states and 6392 transitions. Second operand has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 6 states have internal predecessors, (73), 2 states have call successors, (31), 2 states have call predecessors, (31), 4 states have return successors, (30), 3 states have call predecessors, (30), 2 states have call successors, (30) [2021-11-19 14:35:28,017 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.19s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:35:34,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:35:34,132 INFO L93 Difference]: Finished difference Result 9100 states and 12877 transitions. [2021-11-19 14:35:34,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-19 14:35:34,133 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 6 states have internal predecessors, (73), 2 states have call successors, (31), 2 states have call predecessors, (31), 4 states have return successors, (30), 3 states have call predecessors, (30), 2 states have call successors, (30) Word has length 104 [2021-11-19 14:35:34,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:35:34,156 INFO L225 Difference]: With dead ends: 9100 [2021-11-19 14:35:34,157 INFO L226 Difference]: Without dead ends: 4582 [2021-11-19 14:35:34,185 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 208 GetRequests, 201 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-11-19 14:35:34,186 INFO L933 BasicCegarLoop]: 3398 mSDtfsCounter, 3334 mSDsluCounter, 8911 mSDsCounter, 0 mSdLazyCounter, 1275 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3340 SdHoareTripleChecker+Valid, 12309 SdHoareTripleChecker+Invalid, 1277 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1275 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.7s IncrementalHoareTripleChecker+Time [2021-11-19 14:35:34,186 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3340 Valid, 12309 Invalid, 1277 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1275 Invalid, 1 Unknown, 0 Unchecked, 7.7s Time] [2021-11-19 14:35:34,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4582 states. [2021-11-19 14:35:34,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4582 to 4582. [2021-11-19 14:35:34,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4582 states, 3155 states have (on average 1.2763866877971475) internal successors, (4027), 3269 states have internal predecessors, (4027), 1175 states have call successors, (1175), 230 states have call predecessors, (1175), 230 states have return successors, (1188), 1146 states have call predecessors, (1188), 1173 states have call successors, (1188) [2021-11-19 14:35:34,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4582 states to 4582 states and 6390 transitions. [2021-11-19 14:35:34,707 INFO L78 Accepts]: Start accepts. Automaton has 4582 states and 6390 transitions. Word has length 104 [2021-11-19 14:35:34,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:35:34,708 INFO L470 AbstractCegarLoop]: Abstraction has 4582 states and 6390 transitions. [2021-11-19 14:35:34,709 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 6 states have internal predecessors, (73), 2 states have call successors, (31), 2 states have call predecessors, (31), 4 states have return successors, (30), 3 states have call predecessors, (30), 2 states have call successors, (30) [2021-11-19 14:35:34,709 INFO L276 IsEmpty]: Start isEmpty. Operand 4582 states and 6390 transitions. [2021-11-19 14:35:34,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2021-11-19 14:35:34,711 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:35:34,712 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:35:34,759 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2021-11-19 14:35:34,926 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:35:34,926 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-19 14:35:34,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:35:34,927 INFO L85 PathProgramCache]: Analyzing trace with hash -604644397, now seen corresponding path program 1 times [2021-11-19 14:35:34,928 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:35:34,928 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2001139478] [2021-11-19 14:35:34,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:35:34,929 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:35:34,929 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:35:34,930 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:35:34,959 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2021-11-19 14:35:36,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:35:36,722 INFO L263 TraceCheckSpWp]: Trace formula consists of 1788 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 14:35:36,724 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:35:36,944 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2021-11-19 14:35:36,945 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:35:37,160 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2021-11-19 14:35:37,161 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:35:37,161 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2001139478] [2021-11-19 14:35:37,161 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2001139478] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:35:37,161 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:35:37,161 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-11-19 14:35:37,161 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [373129795] [2021-11-19 14:35:37,161 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:35:37,162 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-19 14:35:37,162 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:35:37,162 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-19 14:35:37,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-19 14:35:37,162 INFO L87 Difference]: Start difference. First operand 4582 states and 6390 transitions. Second operand has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2021-11-19 14:35:37,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:35:37,460 INFO L93 Difference]: Finished difference Result 4582 states and 6390 transitions. [2021-11-19 14:35:37,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:35:37,461 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 104 [2021-11-19 14:35:37,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:35:37,475 INFO L225 Difference]: With dead ends: 4582 [2021-11-19 14:35:37,475 INFO L226 Difference]: Without dead ends: 4580 [2021-11-19 14:35:37,478 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 207 GetRequests, 202 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-19 14:35:37,478 INFO L933 BasicCegarLoop]: 3397 mSDtfsCounter, 34 mSDsluCounter, 10157 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 13554 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 14:35:37,479 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [34 Valid, 13554 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 14:35:37,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4580 states. [2021-11-19 14:35:37,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4580 to 4580. [2021-11-19 14:35:37,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4580 states, 3154 states have (on average 1.275840202916931) internal successors, (4024), 3267 states have internal predecessors, (4024), 1175 states have call successors, (1175), 230 states have call predecessors, (1175), 230 states have return successors, (1188), 1146 states have call predecessors, (1188), 1173 states have call successors, (1188) [2021-11-19 14:35:37,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4580 states to 4580 states and 6387 transitions. [2021-11-19 14:35:37,974 INFO L78 Accepts]: Start accepts. Automaton has 4580 states and 6387 transitions. Word has length 104 [2021-11-19 14:35:37,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:35:37,974 INFO L470 AbstractCegarLoop]: Abstraction has 4580 states and 6387 transitions. [2021-11-19 14:35:37,974 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2021-11-19 14:35:37,975 INFO L276 IsEmpty]: Start isEmpty. Operand 4580 states and 6387 transitions. [2021-11-19 14:35:37,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2021-11-19 14:35:37,977 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:35:37,978 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:35:38,025 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2021-11-19 14:35:38,194 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:35:38,194 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_linux_kernel_locking_rwlock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-19 14:35:38,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:35:38,194 INFO L85 PathProgramCache]: Analyzing trace with hash -1104056857, now seen corresponding path program 1 times [2021-11-19 14:35:38,196 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:35:38,196 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1337341026] [2021-11-19 14:35:38,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:35:38,196 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:35:38,196 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:35:38,197 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:35:38,198 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2021-11-19 14:35:39,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:35:39,799 INFO L263 TraceCheckSpWp]: Trace formula consists of 1724 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 14:35:39,801 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:35:40,499 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-19 14:35:40,499 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:35:40,866 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-19 14:35:40,866 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:35:40,866 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1337341026] [2021-11-19 14:35:40,867 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1337341026] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:35:40,867 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:35:40,867 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-19 14:35:40,867 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1269653858] [2021-11-19 14:35:40,867 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:35:40,868 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 14:35:40,868 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:35:40,869 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 14:35:40,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-19 14:35:40,869 INFO L87 Difference]: Start difference. First operand 4580 states and 6387 transitions. Second operand has 5 states, 5 states have (on average 22.4) internal successors, (112), 5 states have internal predecessors, (112), 2 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2021-11-19 14:35:41,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:35:41,261 INFO L93 Difference]: Finished difference Result 4580 states and 6387 transitions. [2021-11-19 14:35:41,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:35:41,261 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.4) internal successors, (112), 5 states have internal predecessors, (112), 2 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) Word has length 107 [2021-11-19 14:35:41,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:35:41,277 INFO L225 Difference]: With dead ends: 4580 [2021-11-19 14:35:41,277 INFO L226 Difference]: Without dead ends: 4578 [2021-11-19 14:35:41,280 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 213 GetRequests, 209 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-19 14:35:41,280 INFO L933 BasicCegarLoop]: 3395 mSDtfsCounter, 3306 mSDsluCounter, 6778 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3308 SdHoareTripleChecker+Valid, 10173 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 14:35:41,281 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3308 Valid, 10173 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 14:35:41,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4578 states. [2021-11-19 14:35:41,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4578 to 4578. [2021-11-19 14:35:41,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4578 states, 3153 states have (on average 1.2756105296542974) internal successors, (4022), 3265 states have internal predecessors, (4022), 1175 states have call successors, (1175), 230 states have call predecessors, (1175), 230 states have return successors, (1188), 1146 states have call predecessors, (1188), 1173 states have call successors, (1188) [2021-11-19 14:35:41,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4578 states to 4578 states and 6385 transitions. [2021-11-19 14:35:41,749 INFO L78 Accepts]: Start accepts. Automaton has 4578 states and 6385 transitions. Word has length 107 [2021-11-19 14:35:41,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:35:41,750 INFO L470 AbstractCegarLoop]: Abstraction has 4578 states and 6385 transitions. [2021-11-19 14:35:41,750 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.4) internal successors, (112), 5 states have internal predecessors, (112), 2 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2021-11-19 14:35:41,750 INFO L276 IsEmpty]: Start isEmpty. Operand 4578 states and 6385 transitions. [2021-11-19 14:35:41,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-11-19 14:35:41,755 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:35:41,755 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:35:41,797 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2021-11-19 14:35:41,970 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:35:41,970 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_check_alloc_flagsErr1ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-19 14:35:41,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:35:41,971 INFO L85 PathProgramCache]: Analyzing trace with hash -66478631, now seen corresponding path program 1 times [2021-11-19 14:35:41,972 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:35:41,972 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1734386907] [2021-11-19 14:35:41,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:35:41,972 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:35:41,973 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:35:41,973 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:35:41,974 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2021-11-19 14:35:43,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:35:43,768 INFO L263 TraceCheckSpWp]: Trace formula consists of 1795 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 14:35:43,770 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:35:44,388 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2021-11-19 14:35:44,388 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:35:44,800 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2021-11-19 14:35:44,800 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:35:44,800 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1734386907] [2021-11-19 14:35:44,800 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1734386907] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:35:44,800 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:35:44,800 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 3] imperfect sequences [] total 4 [2021-11-19 14:35:44,801 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1059332691] [2021-11-19 14:35:44,801 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:35:44,801 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 14:35:44,802 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:35:44,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 14:35:44,802 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 14:35:44,802 INFO L87 Difference]: Start difference. First operand 4578 states and 6385 transitions. Second operand has 4 states, 4 states have (on average 27.5) internal successors, (110), 4 states have internal predecessors, (110), 3 states have call successors, (32), 3 states have call predecessors, (32), 2 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) [2021-11-19 14:35:45,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:35:45,195 INFO L93 Difference]: Finished difference Result 9086 states and 12856 transitions. [2021-11-19 14:35:45,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 14:35:45,196 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.5) internal successors, (110), 4 states have internal predecessors, (110), 3 states have call successors, (32), 3 states have call predecessors, (32), 2 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) Word has length 108 [2021-11-19 14:35:45,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:35:45,211 INFO L225 Difference]: With dead ends: 9086 [2021-11-19 14:35:45,212 INFO L226 Difference]: Without dead ends: 4572 [2021-11-19 14:35:45,236 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 214 GetRequests, 212 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 14:35:45,236 INFO L933 BasicCegarLoop]: 3390 mSDtfsCounter, 3329 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3329 SdHoareTripleChecker+Valid, 3390 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 14:35:45,237 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3329 Valid, 3390 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 14:35:45,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4572 states. [2021-11-19 14:35:45,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4572 to 4572. [2021-11-19 14:35:45,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4572 states, 3148 states have (on average 1.2747776365946633) internal successors, (4013), 3259 states have internal predecessors, (4013), 1175 states have call successors, (1175), 230 states have call predecessors, (1175), 230 states have return successors, (1188), 1146 states have call predecessors, (1188), 1173 states have call successors, (1188) [2021-11-19 14:35:45,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4572 states to 4572 states and 6376 transitions. [2021-11-19 14:35:45,829 INFO L78 Accepts]: Start accepts. Automaton has 4572 states and 6376 transitions. Word has length 108 [2021-11-19 14:35:45,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:35:45,830 INFO L470 AbstractCegarLoop]: Abstraction has 4572 states and 6376 transitions. [2021-11-19 14:35:45,830 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.5) internal successors, (110), 4 states have internal predecessors, (110), 3 states have call successors, (32), 3 states have call predecessors, (32), 2 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) [2021-11-19 14:35:45,830 INFO L276 IsEmpty]: Start isEmpty. Operand 4572 states and 6376 transitions. [2021-11-19 14:35:45,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2021-11-19 14:35:45,833 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:35:45,833 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:35:45,882 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (19)] Forceful destruction successful, exit code 0 [2021-11-19 14:35:46,047 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:35:46,047 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_linux_kernel_locking_rwlock_check_final_stateErr1ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-19 14:35:46,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:35:46,047 INFO L85 PathProgramCache]: Analyzing trace with hash -141561782, now seen corresponding path program 1 times [2021-11-19 14:35:46,049 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:35:46,049 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [75896371] [2021-11-19 14:35:46,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:35:46,049 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:35:46,049 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:35:46,050 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:35:46,055 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2021-11-19 14:35:47,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:35:47,665 INFO L263 TraceCheckSpWp]: Trace formula consists of 1727 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 14:35:47,667 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:35:48,338 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-19 14:35:48,338 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:35:48,708 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-19 14:35:48,708 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:35:48,708 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [75896371] [2021-11-19 14:35:48,708 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [75896371] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:35:48,708 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:35:48,709 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-19 14:35:48,709 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1143183845] [2021-11-19 14:35:48,709 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:35:48,709 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 14:35:48,710 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:35:48,710 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 14:35:48,710 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-19 14:35:48,711 INFO L87 Difference]: Start difference. First operand 4572 states and 6376 transitions. Second operand has 5 states, 5 states have (on average 22.8) internal successors, (114), 5 states have internal predecessors, (114), 2 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2021-11-19 14:35:49,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:35:49,037 INFO L93 Difference]: Finished difference Result 4572 states and 6376 transitions. [2021-11-19 14:35:49,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:35:49,038 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.8) internal successors, (114), 5 states have internal predecessors, (114), 2 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) Word has length 109 [2021-11-19 14:35:49,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:35:49,064 INFO L225 Difference]: With dead ends: 4572 [2021-11-19 14:35:49,064 INFO L226 Difference]: Without dead ends: 4570 [2021-11-19 14:35:49,068 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 217 GetRequests, 213 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-19 14:35:49,069 INFO L933 BasicCegarLoop]: 3388 mSDtfsCounter, 3293 mSDsluCounter, 6772 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3295 SdHoareTripleChecker+Valid, 10160 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 14:35:49,069 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3295 Valid, 10160 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 14:35:49,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4570 states. [2021-11-19 14:35:49,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4570 to 4570. [2021-11-19 14:35:49,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4570 states, 3147 states have (on average 1.2745471877979027) internal successors, (4011), 3257 states have internal predecessors, (4011), 1175 states have call successors, (1175), 230 states have call predecessors, (1175), 230 states have return successors, (1188), 1146 states have call predecessors, (1188), 1173 states have call successors, (1188) [2021-11-19 14:35:49,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4570 states to 4570 states and 6374 transitions. [2021-11-19 14:35:49,591 INFO L78 Accepts]: Start accepts. Automaton has 4570 states and 6374 transitions. Word has length 109 [2021-11-19 14:35:49,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:35:49,592 INFO L470 AbstractCegarLoop]: Abstraction has 4570 states and 6374 transitions. [2021-11-19 14:35:49,592 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.8) internal successors, (114), 5 states have internal predecessors, (114), 2 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2021-11-19 14:35:49,592 INFO L276 IsEmpty]: Start isEmpty. Operand 4570 states and 6374 transitions. [2021-11-19 14:35:49,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-11-19 14:35:49,595 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:35:49,595 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:35:49,629 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (20)] Forceful destruction successful, exit code 0 [2021-11-19 14:35:49,806 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:35:49,806 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ldv_linux_kernel_module_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-19 14:35:49,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:35:49,807 INFO L85 PathProgramCache]: Analyzing trace with hash -1695674474, now seen corresponding path program 1 times [2021-11-19 14:35:49,808 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:35:49,808 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1074861777] [2021-11-19 14:35:49,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:35:49,808 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:35:49,808 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:35:49,809 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:35:49,812 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2021-11-19 14:35:51,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:35:51,417 INFO L263 TraceCheckSpWp]: Trace formula consists of 1736 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 14:35:51,419 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:35:52,108 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-19 14:35:52,108 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:35:52,484 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-19 14:35:52,484 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:35:52,484 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1074861777] [2021-11-19 14:35:52,484 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1074861777] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:35:52,484 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:35:52,485 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-19 14:35:52,485 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [681829264] [2021-11-19 14:35:52,485 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:35:52,485 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 14:35:52,485 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:35:52,486 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 14:35:52,486 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-19 14:35:52,486 INFO L87 Difference]: Start difference. First operand 4570 states and 6374 transitions. Second operand has 5 states, 5 states have (on average 24.8) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) [2021-11-19 14:35:52,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:35:52,857 INFO L93 Difference]: Finished difference Result 4570 states and 6374 transitions. [2021-11-19 14:35:52,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:35:52,857 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.8) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) Word has length 115 [2021-11-19 14:35:52,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:35:52,866 INFO L225 Difference]: With dead ends: 4570 [2021-11-19 14:35:52,866 INFO L226 Difference]: Without dead ends: 4568 [2021-11-19 14:35:52,868 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 229 GetRequests, 225 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-19 14:35:52,869 INFO L933 BasicCegarLoop]: 3386 mSDtfsCounter, 3288 mSDsluCounter, 3384 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3290 SdHoareTripleChecker+Valid, 6770 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 14:35:52,869 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3290 Valid, 6770 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 14:35:52,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4568 states. [2021-11-19 14:35:53,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4568 to 4568. [2021-11-19 14:35:53,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4568 states, 3146 states have (on average 1.2743165924984108) internal successors, (4009), 3255 states have internal predecessors, (4009), 1175 states have call successors, (1175), 230 states have call predecessors, (1175), 230 states have return successors, (1188), 1146 states have call predecessors, (1188), 1173 states have call successors, (1188) [2021-11-19 14:35:53,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4568 states to 4568 states and 6372 transitions. [2021-11-19 14:35:53,231 INFO L78 Accepts]: Start accepts. Automaton has 4568 states and 6372 transitions. Word has length 115 [2021-11-19 14:35:53,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:35:53,232 INFO L470 AbstractCegarLoop]: Abstraction has 4568 states and 6372 transitions. [2021-11-19 14:35:53,232 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.8) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) [2021-11-19 14:35:53,232 INFO L276 IsEmpty]: Start isEmpty. Operand 4568 states and 6372 transitions. [2021-11-19 14:35:53,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2021-11-19 14:35:53,235 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:35:53,235 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:35:53,266 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (21)] Forceful destruction successful, exit code 0 [2021-11-19 14:35:53,435 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:35:53,436 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ldv_linux_kernel_rcu_update_lock_bh_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-19 14:35:53,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:35:53,436 INFO L85 PathProgramCache]: Analyzing trace with hash 1284641006, now seen corresponding path program 1 times [2021-11-19 14:35:53,437 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:35:53,437 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1979953966] [2021-11-19 14:35:53,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:35:53,438 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:35:53,438 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:35:53,439 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:35:53,440 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2021-11-19 14:35:54,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:35:55,060 INFO L263 TraceCheckSpWp]: Trace formula consists of 1745 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 14:35:55,062 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:35:55,785 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-19 14:35:55,786 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:35:56,231 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-19 14:35:56,231 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:35:56,232 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1979953966] [2021-11-19 14:35:56,232 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1979953966] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:35:56,232 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:35:56,232 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-19 14:35:56,232 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [919719764] [2021-11-19 14:35:56,232 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:35:56,233 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 14:35:56,233 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:35:56,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 14:35:56,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-19 14:35:56,234 INFO L87 Difference]: Start difference. First operand 4568 states and 6372 transitions. Second operand has 5 states, 5 states have (on average 26.4) internal successors, (132), 5 states have internal predecessors, (132), 2 states have call successors, (37), 2 states have call predecessors, (37), 2 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) [2021-11-19 14:35:56,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:35:56,601 INFO L93 Difference]: Finished difference Result 4568 states and 6372 transitions. [2021-11-19 14:35:56,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:35:56,601 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.4) internal successors, (132), 5 states have internal predecessors, (132), 2 states have call successors, (37), 2 states have call predecessors, (37), 2 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) Word has length 121 [2021-11-19 14:35:56,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:35:56,614 INFO L225 Difference]: With dead ends: 4568 [2021-11-19 14:35:56,614 INFO L226 Difference]: Without dead ends: 4566 [2021-11-19 14:35:56,618 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 241 GetRequests, 237 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-19 14:35:56,619 INFO L933 BasicCegarLoop]: 3383 mSDtfsCounter, 3277 mSDsluCounter, 6762 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3279 SdHoareTripleChecker+Valid, 10145 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 14:35:56,619 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3279 Valid, 10145 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 14:35:56,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4566 states. [2021-11-19 14:35:57,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4566 to 4566. [2021-11-19 14:35:57,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4566 states, 3145 states have (on average 1.2740858505564387) internal successors, (4007), 3253 states have internal predecessors, (4007), 1175 states have call successors, (1175), 230 states have call predecessors, (1175), 230 states have return successors, (1188), 1146 states have call predecessors, (1188), 1173 states have call successors, (1188) [2021-11-19 14:35:57,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4566 states to 4566 states and 6370 transitions. [2021-11-19 14:35:57,080 INFO L78 Accepts]: Start accepts. Automaton has 4566 states and 6370 transitions. Word has length 121 [2021-11-19 14:35:57,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:35:57,080 INFO L470 AbstractCegarLoop]: Abstraction has 4566 states and 6370 transitions. [2021-11-19 14:35:57,080 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.4) internal successors, (132), 5 states have internal predecessors, (132), 2 states have call successors, (37), 2 states have call predecessors, (37), 2 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) [2021-11-19 14:35:57,081 INFO L276 IsEmpty]: Start isEmpty. Operand 4566 states and 6370 transitions. [2021-11-19 14:35:57,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2021-11-19 14:35:57,084 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:35:57,084 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:35:57,112 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (22)] Forceful destruction successful, exit code 0 [2021-11-19 14:35:57,286 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:35:57,286 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ldv_linux_kernel_rcu_update_lock_sched_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-19 14:35:57,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:35:57,287 INFO L85 PathProgramCache]: Analyzing trace with hash -1320420407, now seen corresponding path program 1 times [2021-11-19 14:35:57,288 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:35:57,288 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1515755258] [2021-11-19 14:35:57,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:35:57,288 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:35:57,288 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:35:57,289 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:35:57,290 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (23)] Waiting until timeout for monitored process [2021-11-19 14:35:58,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:35:58,888 INFO L263 TraceCheckSpWp]: Trace formula consists of 1754 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 14:35:58,890 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:35:59,691 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-19 14:35:59,691 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:36:00,208 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-19 14:36:00,209 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:36:00,209 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1515755258] [2021-11-19 14:36:00,209 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1515755258] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:36:00,209 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:36:00,209 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-19 14:36:00,209 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2145500571] [2021-11-19 14:36:00,210 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:36:00,210 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 14:36:00,210 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:36:00,211 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 14:36:00,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-19 14:36:00,211 INFO L87 Difference]: Start difference. First operand 4566 states and 6370 transitions. Second operand has 5 states, 5 states have (on average 28.0) internal successors, (140), 5 states have internal predecessors, (140), 2 states have call successors, (39), 2 states have call predecessors, (39), 2 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) [2021-11-19 14:36:00,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:36:00,585 INFO L93 Difference]: Finished difference Result 4566 states and 6370 transitions. [2021-11-19 14:36:00,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:36:00,585 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.0) internal successors, (140), 5 states have internal predecessors, (140), 2 states have call successors, (39), 2 states have call predecessors, (39), 2 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) Word has length 127 [2021-11-19 14:36:00,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:36:00,596 INFO L225 Difference]: With dead ends: 4566 [2021-11-19 14:36:00,596 INFO L226 Difference]: Without dead ends: 4564 [2021-11-19 14:36:00,599 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 253 GetRequests, 249 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-19 14:36:00,600 INFO L933 BasicCegarLoop]: 3381 mSDtfsCounter, 3269 mSDsluCounter, 6758 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3271 SdHoareTripleChecker+Valid, 10139 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 14:36:00,600 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3271 Valid, 10139 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 14:36:00,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4564 states. [2021-11-19 14:36:01,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4564 to 4564. [2021-11-19 14:36:01,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4564 states, 3144 states have (on average 1.2738549618320612) internal successors, (4005), 3251 states have internal predecessors, (4005), 1175 states have call successors, (1175), 230 states have call predecessors, (1175), 230 states have return successors, (1188), 1146 states have call predecessors, (1188), 1173 states have call successors, (1188) [2021-11-19 14:36:01,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4564 states to 4564 states and 6368 transitions. [2021-11-19 14:36:01,140 INFO L78 Accepts]: Start accepts. Automaton has 4564 states and 6368 transitions. Word has length 127 [2021-11-19 14:36:01,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:36:01,140 INFO L470 AbstractCegarLoop]: Abstraction has 4564 states and 6368 transitions. [2021-11-19 14:36:01,141 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.0) internal successors, (140), 5 states have internal predecessors, (140), 2 states have call successors, (39), 2 states have call predecessors, (39), 2 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) [2021-11-19 14:36:01,141 INFO L276 IsEmpty]: Start isEmpty. Operand 4564 states and 6368 transitions. [2021-11-19 14:36:01,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2021-11-19 14:36:01,144 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:36:01,144 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:36:01,173 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (23)] Forceful destruction successful, exit code 0 [2021-11-19 14:36:01,346 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:36:01,346 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-19 14:36:01,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:36:01,346 INFO L85 PathProgramCache]: Analyzing trace with hash -1314734448, now seen corresponding path program 1 times [2021-11-19 14:36:01,348 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:36:01,348 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [42410574] [2021-11-19 14:36:01,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:36:01,348 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:36:01,349 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:36:01,349 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:36:01,350 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (24)] Waiting until timeout for monitored process [2021-11-19 14:36:02,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:36:02,969 INFO L263 TraceCheckSpWp]: Trace formula consists of 1763 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 14:36:02,972 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:36:03,761 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-19 14:36:03,761 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:36:04,190 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-19 14:36:04,191 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:36:04,191 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [42410574] [2021-11-19 14:36:04,191 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [42410574] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:36:04,191 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:36:04,191 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-19 14:36:04,191 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [854861763] [2021-11-19 14:36:04,191 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:36:04,192 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 14:36:04,192 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:36:04,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 14:36:04,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-19 14:36:04,193 INFO L87 Difference]: Start difference. First operand 4564 states and 6368 transitions. Second operand has 5 states, 5 states have (on average 29.6) internal successors, (148), 5 states have internal predecessors, (148), 2 states have call successors, (41), 2 states have call predecessors, (41), 2 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) [2021-11-19 14:36:04,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:36:04,525 INFO L93 Difference]: Finished difference Result 4564 states and 6368 transitions. [2021-11-19 14:36:04,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:36:04,525 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.6) internal successors, (148), 5 states have internal predecessors, (148), 2 states have call successors, (41), 2 states have call predecessors, (41), 2 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) Word has length 133 [2021-11-19 14:36:04,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:36:04,536 INFO L225 Difference]: With dead ends: 4564 [2021-11-19 14:36:04,537 INFO L226 Difference]: Without dead ends: 4562 [2021-11-19 14:36:04,539 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 265 GetRequests, 261 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-19 14:36:04,539 INFO L933 BasicCegarLoop]: 3379 mSDtfsCounter, 3264 mSDsluCounter, 3377 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3266 SdHoareTripleChecker+Valid, 6756 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 14:36:04,540 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3266 Valid, 6756 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 14:36:04,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4562 states. [2021-11-19 14:36:04,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4562 to 4562. [2021-11-19 14:36:04,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4562 states, 3143 states have (on average 1.2736239261851734) internal successors, (4003), 3249 states have internal predecessors, (4003), 1175 states have call successors, (1175), 230 states have call predecessors, (1175), 230 states have return successors, (1188), 1146 states have call predecessors, (1188), 1173 states have call successors, (1188) [2021-11-19 14:36:04,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4562 states to 4562 states and 6366 transitions. [2021-11-19 14:36:04,925 INFO L78 Accepts]: Start accepts. Automaton has 4562 states and 6366 transitions. Word has length 133 [2021-11-19 14:36:04,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:36:04,925 INFO L470 AbstractCegarLoop]: Abstraction has 4562 states and 6366 transitions. [2021-11-19 14:36:04,925 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.6) internal successors, (148), 5 states have internal predecessors, (148), 2 states have call successors, (41), 2 states have call predecessors, (41), 2 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) [2021-11-19 14:36:04,925 INFO L276 IsEmpty]: Start isEmpty. Operand 4562 states and 6366 transitions. [2021-11-19 14:36:04,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2021-11-19 14:36:04,929 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:36:04,929 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:36:04,971 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (24)] Forceful destruction successful, exit code 0 [2021-11-19 14:36:05,142 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:36:05,142 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ldv_linux_kernel_rcu_srcu_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-19 14:36:05,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:36:05,142 INFO L85 PathProgramCache]: Analyzing trace with hash 96838206, now seen corresponding path program 1 times [2021-11-19 14:36:05,144 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:36:05,144 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [604124243] [2021-11-19 14:36:05,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:36:05,144 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:36:05,144 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:36:05,145 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:36:05,147 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (25)] Waiting until timeout for monitored process [2021-11-19 14:36:06,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:36:06,757 INFO L263 TraceCheckSpWp]: Trace formula consists of 1772 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 14:36:06,760 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:36:07,583 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-19 14:36:07,583 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:36:08,024 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-19 14:36:08,024 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:36:08,024 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [604124243] [2021-11-19 14:36:08,025 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [604124243] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:36:08,025 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:36:08,025 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-19 14:36:08,025 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2121325566] [2021-11-19 14:36:08,025 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:36:08,026 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 14:36:08,026 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:36:08,027 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 14:36:08,027 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-19 14:36:08,027 INFO L87 Difference]: Start difference. First operand 4562 states and 6366 transitions. Second operand has 5 states, 5 states have (on average 31.2) internal successors, (156), 5 states have internal predecessors, (156), 2 states have call successors, (43), 2 states have call predecessors, (43), 2 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) [2021-11-19 14:36:08,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:36:08,426 INFO L93 Difference]: Finished difference Result 4562 states and 6366 transitions. [2021-11-19 14:36:08,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:36:08,427 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 31.2) internal successors, (156), 5 states have internal predecessors, (156), 2 states have call successors, (43), 2 states have call predecessors, (43), 2 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) Word has length 139 [2021-11-19 14:36:08,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:36:08,435 INFO L225 Difference]: With dead ends: 4562 [2021-11-19 14:36:08,436 INFO L226 Difference]: Without dead ends: 4560 [2021-11-19 14:36:08,437 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 277 GetRequests, 273 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-19 14:36:08,438 INFO L933 BasicCegarLoop]: 3377 mSDtfsCounter, 3253 mSDsluCounter, 6750 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3255 SdHoareTripleChecker+Valid, 10127 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 14:36:08,438 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3255 Valid, 10127 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 14:36:08,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4560 states. [2021-11-19 14:36:08,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4560 to 4560. [2021-11-19 14:36:08,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4560 states, 3142 states have (on average 1.2733927434754932) internal successors, (4001), 3247 states have internal predecessors, (4001), 1175 states have call successors, (1175), 230 states have call predecessors, (1175), 230 states have return successors, (1188), 1146 states have call predecessors, (1188), 1173 states have call successors, (1188) [2021-11-19 14:36:08,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4560 states to 4560 states and 6364 transitions. [2021-11-19 14:36:08,826 INFO L78 Accepts]: Start accepts. Automaton has 4560 states and 6364 transitions. Word has length 139 [2021-11-19 14:36:08,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:36:08,827 INFO L470 AbstractCegarLoop]: Abstraction has 4560 states and 6364 transitions. [2021-11-19 14:36:08,827 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 31.2) internal successors, (156), 5 states have internal predecessors, (156), 2 states have call successors, (43), 2 states have call predecessors, (43), 2 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) [2021-11-19 14:36:08,827 INFO L276 IsEmpty]: Start isEmpty. Operand 4560 states and 6364 transitions. [2021-11-19 14:36:08,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2021-11-19 14:36:08,831 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:36:08,831 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:36:08,863 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (25)] Forceful destruction successful, exit code 0 [2021-11-19 14:36:09,031 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:36:09,031 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ldv_linux_lib_idr_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-19 14:36:09,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:36:09,032 INFO L85 PathProgramCache]: Analyzing trace with hash 966186948, now seen corresponding path program 1 times [2021-11-19 14:36:09,033 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:36:09,033 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1336268297] [2021-11-19 14:36:09,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:36:09,034 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:36:09,034 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:36:09,035 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:36:09,039 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (26)] Waiting until timeout for monitored process [2021-11-19 14:36:10,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:36:10,667 INFO L263 TraceCheckSpWp]: Trace formula consists of 1781 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 14:36:10,671 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:36:11,559 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-19 14:36:11,559 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:36:12,352 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-19 14:36:12,352 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:36:12,352 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1336268297] [2021-11-19 14:36:12,352 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1336268297] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:36:12,352 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:36:12,352 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 6 [2021-11-19 14:36:12,353 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [281486212] [2021-11-19 14:36:12,353 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:36:12,353 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-19 14:36:12,353 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:36:12,353 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-19 14:36:12,354 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-19 14:36:12,354 INFO L87 Difference]: Start difference. First operand 4560 states and 6364 transitions. Second operand has 6 states, 6 states have (on average 30.5) internal successors, (183), 6 states have internal predecessors, (183), 3 states have call successors, (46), 3 states have call predecessors, (46), 2 states have return successors, (44), 3 states have call predecessors, (44), 3 states have call successors, (44) [2021-11-19 14:36:15,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:36:15,016 INFO L93 Difference]: Finished difference Result 4560 states and 6364 transitions. [2021-11-19 14:36:15,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:36:15,017 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 30.5) internal successors, (183), 6 states have internal predecessors, (183), 3 states have call successors, (46), 3 states have call predecessors, (46), 2 states have return successors, (44), 3 states have call predecessors, (44), 3 states have call successors, (44) Word has length 145 [2021-11-19 14:36:15,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:36:15,033 INFO L225 Difference]: With dead ends: 4560 [2021-11-19 14:36:15,033 INFO L226 Difference]: Without dead ends: 4558 [2021-11-19 14:36:15,036 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 289 GetRequests, 284 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-19 14:36:15,037 INFO L933 BasicCegarLoop]: 3376 mSDtfsCounter, 5343 mSDsluCounter, 3374 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 1243 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5345 SdHoareTripleChecker+Valid, 6750 SdHoareTripleChecker+Invalid, 1245 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1243 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2021-11-19 14:36:15,038 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5345 Valid, 6750 Invalid, 1245 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1243 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2021-11-19 14:36:15,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4558 states. [2021-11-19 14:36:15,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4558 to 4558. [2021-11-19 14:36:15,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4558 states, 3141 states have (on average 1.2731614135625597) internal successors, (3999), 3245 states have internal predecessors, (3999), 1175 states have call successors, (1175), 230 states have call predecessors, (1175), 230 states have return successors, (1188), 1146 states have call predecessors, (1188), 1173 states have call successors, (1188) [2021-11-19 14:36:15,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4558 states to 4558 states and 6362 transitions. [2021-11-19 14:36:15,387 INFO L78 Accepts]: Start accepts. Automaton has 4558 states and 6362 transitions. Word has length 145 [2021-11-19 14:36:15,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:36:15,388 INFO L470 AbstractCegarLoop]: Abstraction has 4558 states and 6362 transitions. [2021-11-19 14:36:15,388 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 30.5) internal successors, (183), 6 states have internal predecessors, (183), 3 states have call successors, (46), 3 states have call predecessors, (46), 2 states have return successors, (44), 3 states have call predecessors, (44), 3 states have call successors, (44) [2021-11-19 14:36:15,388 INFO L276 IsEmpty]: Start isEmpty. Operand 4558 states and 6362 transitions. [2021-11-19 14:36:15,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2021-11-19 14:36:15,392 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:36:15,393 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:36:15,450 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (26)] Forceful destruction successful, exit code 0 [2021-11-19 14:36:15,606 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:36:15,606 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ldv_linux_mmc_sdio_func_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-19 14:36:15,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:36:15,607 INFO L85 PathProgramCache]: Analyzing trace with hash 1338909348, now seen corresponding path program 1 times [2021-11-19 14:36:15,608 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:36:15,608 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [776068938] [2021-11-19 14:36:15,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:36:15,608 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:36:15,609 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:36:15,610 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:36:15,612 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (27)] Waiting until timeout for monitored process [2021-11-19 14:36:17,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:36:17,228 INFO L263 TraceCheckSpWp]: Trace formula consists of 1790 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 14:36:17,230 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:36:18,154 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-19 14:36:18,155 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:36:18,635 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-19 14:36:18,635 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:36:18,635 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [776068938] [2021-11-19 14:36:18,636 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [776068938] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:36:18,636 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:36:18,636 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-19 14:36:18,636 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [810226486] [2021-11-19 14:36:18,636 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:36:18,637 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 14:36:18,637 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:36:18,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 14:36:18,638 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-19 14:36:18,639 INFO L87 Difference]: Start difference. First operand 4558 states and 6362 transitions. Second operand has 5 states, 5 states have (on average 34.4) internal successors, (172), 5 states have internal predecessors, (172), 2 states have call successors, (47), 2 states have call predecessors, (47), 2 states have return successors, (46), 2 states have call predecessors, (46), 2 states have call successors, (46) [2021-11-19 14:36:18,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:36:18,997 INFO L93 Difference]: Finished difference Result 4558 states and 6362 transitions. [2021-11-19 14:36:18,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:36:18,998 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 34.4) internal successors, (172), 5 states have internal predecessors, (172), 2 states have call successors, (47), 2 states have call predecessors, (47), 2 states have return successors, (46), 2 states have call predecessors, (46), 2 states have call successors, (46) Word has length 151 [2021-11-19 14:36:18,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:36:19,009 INFO L225 Difference]: With dead ends: 4558 [2021-11-19 14:36:19,009 INFO L226 Difference]: Without dead ends: 4556 [2021-11-19 14:36:19,011 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 301 GetRequests, 296 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-19 14:36:19,012 INFO L933 BasicCegarLoop]: 3374 mSDtfsCounter, 3240 mSDsluCounter, 3372 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3242 SdHoareTripleChecker+Valid, 6746 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 14:36:19,012 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3242 Valid, 6746 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 14:36:19,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4556 states. [2021-11-19 14:36:19,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4556 to 4556. [2021-11-19 14:36:19,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4556 states, 3140 states have (on average 1.2729299363057325) internal successors, (3997), 3243 states have internal predecessors, (3997), 1175 states have call successors, (1175), 230 states have call predecessors, (1175), 230 states have return successors, (1188), 1146 states have call predecessors, (1188), 1173 states have call successors, (1188) [2021-11-19 14:36:19,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4556 states to 4556 states and 6360 transitions. [2021-11-19 14:36:19,442 INFO L78 Accepts]: Start accepts. Automaton has 4556 states and 6360 transitions. Word has length 151 [2021-11-19 14:36:19,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:36:19,443 INFO L470 AbstractCegarLoop]: Abstraction has 4556 states and 6360 transitions. [2021-11-19 14:36:19,443 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 34.4) internal successors, (172), 5 states have internal predecessors, (172), 2 states have call successors, (47), 2 states have call predecessors, (47), 2 states have return successors, (46), 2 states have call predecessors, (46), 2 states have call successors, (46) [2021-11-19 14:36:19,443 INFO L276 IsEmpty]: Start isEmpty. Operand 4556 states and 6360 transitions. [2021-11-19 14:36:19,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2021-11-19 14:36:19,448 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:36:19,448 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:36:19,490 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (27)] Forceful destruction successful, exit code 0 [2021-11-19 14:36:19,662 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:36:19,662 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-19 14:36:19,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:36:19,663 INFO L85 PathProgramCache]: Analyzing trace with hash -1212336923, now seen corresponding path program 1 times [2021-11-19 14:36:19,664 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:36:19,664 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1005648159] [2021-11-19 14:36:19,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:36:19,664 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:36:19,664 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:36:19,665 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:36:19,666 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (28)] Waiting until timeout for monitored process [2021-11-19 14:36:21,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:36:21,506 INFO L263 TraceCheckSpWp]: Trace formula consists of 2029 conjuncts, 24 conjunts are in the unsatisfiable core [2021-11-19 14:36:21,509 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:36:22,730 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 96 proven. 0 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2021-11-19 14:36:22,731 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:36:24,792 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 6 proven. 18 refuted. 0 times theorem prover too weak. 186 trivial. 0 not checked. [2021-11-19 14:36:24,793 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:36:24,793 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1005648159] [2021-11-19 14:36:24,793 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1005648159] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-19 14:36:24,793 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-19 14:36:24,793 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [17] total 31 [2021-11-19 14:36:24,793 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1883320690] [2021-11-19 14:36:24,793 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 14:36:24,794 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2021-11-19 14:36:24,794 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:36:24,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-11-19 14:36:24,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=856, Unknown=0, NotChecked=0, Total=930 [2021-11-19 14:36:24,795 INFO L87 Difference]: Start difference. First operand 4556 states and 6360 transitions. Second operand has 17 states, 16 states have (on average 5.0625) internal successors, (81), 16 states have internal predecessors, (81), 6 states have call successors, (26), 2 states have call predecessors, (26), 4 states have return successors, (22), 6 states have call predecessors, (22), 6 states have call successors, (22) [2021-11-19 14:36:27,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:36:27,504 INFO L93 Difference]: Finished difference Result 6852 states and 9523 transitions. [2021-11-19 14:36:27,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-11-19 14:36:27,505 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 5.0625) internal successors, (81), 16 states have internal predecessors, (81), 6 states have call successors, (26), 2 states have call predecessors, (26), 4 states have return successors, (22), 6 states have call predecessors, (22), 6 states have call successors, (22) Word has length 179 [2021-11-19 14:36:27,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:36:27,514 INFO L225 Difference]: With dead ends: 6852 [2021-11-19 14:36:27,514 INFO L226 Difference]: Without dead ends: 2533 [2021-11-19 14:36:27,535 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 366 GetRequests, 327 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 110 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=221, Invalid=1419, Unknown=0, NotChecked=0, Total=1640 [2021-11-19 14:36:27,536 INFO L933 BasicCegarLoop]: 3368 mSDtfsCounter, 63 mSDsluCounter, 50299 mSDsCounter, 0 mSdLazyCounter, 540 mSolverCounterSat, 222 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 53667 SdHoareTripleChecker+Invalid, 762 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 222 IncrementalHoareTripleChecker+Valid, 540 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2021-11-19 14:36:27,536 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [63 Valid, 53667 Invalid, 762 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [222 Valid, 540 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2021-11-19 14:36:27,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2533 states. [2021-11-19 14:36:27,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2533 to 2507. [2021-11-19 14:36:27,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2507 states, 1714 states have (on average 1.2596266044340723) internal successors, (2159), 1777 states have internal predecessors, (2159), 647 states have call successors, (647), 135 states have call predecessors, (647), 135 states have return successors, (646), 628 states have call predecessors, (646), 645 states have call successors, (646) [2021-11-19 14:36:27,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2507 states to 2507 states and 3452 transitions. [2021-11-19 14:36:27,875 INFO L78 Accepts]: Start accepts. Automaton has 2507 states and 3452 transitions. Word has length 179 [2021-11-19 14:36:27,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:36:27,875 INFO L470 AbstractCegarLoop]: Abstraction has 2507 states and 3452 transitions. [2021-11-19 14:36:27,876 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 5.0625) internal successors, (81), 16 states have internal predecessors, (81), 6 states have call successors, (26), 2 states have call predecessors, (26), 4 states have return successors, (22), 6 states have call predecessors, (22), 6 states have call successors, (22) [2021-11-19 14:36:27,876 INFO L276 IsEmpty]: Start isEmpty. Operand 2507 states and 3452 transitions. [2021-11-19 14:36:27,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2021-11-19 14:36:27,880 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:36:27,881 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:36:27,923 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (28)] Forceful destruction successful, exit code 0 [2021-11-19 14:36:28,100 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:36:28,101 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ldv_linux_net_rtnetlink_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-19 14:36:28,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:36:28,101 INFO L85 PathProgramCache]: Analyzing trace with hash 146475822, now seen corresponding path program 1 times [2021-11-19 14:36:28,103 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:36:28,103 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [840171020] [2021-11-19 14:36:28,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:36:28,103 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:36:28,104 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:36:28,106 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:36:28,107 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (29)] Waiting until timeout for monitored process [2021-11-19 14:36:29,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:36:29,762 INFO L263 TraceCheckSpWp]: Trace formula consists of 1799 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 14:36:29,766 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:36:30,779 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-19 14:36:30,779 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:36:31,289 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-19 14:36:31,289 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:36:31,290 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [840171020] [2021-11-19 14:36:31,290 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [840171020] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:36:31,290 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:36:31,290 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-19 14:36:31,291 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1634077979] [2021-11-19 14:36:31,291 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:36:31,292 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 14:36:31,292 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:36:31,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 14:36:31,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-19 14:36:31,293 INFO L87 Difference]: Start difference. First operand 2507 states and 3452 transitions. Second operand has 5 states, 5 states have (on average 36.0) internal successors, (180), 5 states have internal predecessors, (180), 2 states have call successors, (49), 2 states have call predecessors, (49), 2 states have return successors, (48), 2 states have call predecessors, (48), 2 states have call successors, (48) [2021-11-19 14:36:31,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:36:31,561 INFO L93 Difference]: Finished difference Result 2507 states and 3452 transitions. [2021-11-19 14:36:31,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:36:31,562 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 36.0) internal successors, (180), 5 states have internal predecessors, (180), 2 states have call successors, (49), 2 states have call predecessors, (49), 2 states have return successors, (48), 2 states have call predecessors, (48), 2 states have call successors, (48) Word has length 157 [2021-11-19 14:36:31,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:36:31,568 INFO L225 Difference]: With dead ends: 2507 [2021-11-19 14:36:31,568 INFO L226 Difference]: Without dead ends: 2505 [2021-11-19 14:36:31,569 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 313 GetRequests, 309 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-19 14:36:31,570 INFO L933 BasicCegarLoop]: 3372 mSDtfsCounter, 3232 mSDsluCounter, 3370 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3234 SdHoareTripleChecker+Valid, 6742 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 14:36:31,570 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3234 Valid, 6742 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 14:36:31,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2505 states. [2021-11-19 14:36:31,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2505 to 2505. [2021-11-19 14:36:31,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2505 states, 1713 states have (on average 1.2591943957968477) internal successors, (2157), 1775 states have internal predecessors, (2157), 647 states have call successors, (647), 135 states have call predecessors, (647), 135 states have return successors, (646), 628 states have call predecessors, (646), 645 states have call successors, (646) [2021-11-19 14:36:31,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2505 states to 2505 states and 3450 transitions. [2021-11-19 14:36:31,801 INFO L78 Accepts]: Start accepts. Automaton has 2505 states and 3450 transitions. Word has length 157 [2021-11-19 14:36:31,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:36:31,801 INFO L470 AbstractCegarLoop]: Abstraction has 2505 states and 3450 transitions. [2021-11-19 14:36:31,801 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 36.0) internal successors, (180), 5 states have internal predecessors, (180), 2 states have call successors, (49), 2 states have call predecessors, (49), 2 states have return successors, (48), 2 states have call predecessors, (48), 2 states have call successors, (48) [2021-11-19 14:36:31,802 INFO L276 IsEmpty]: Start isEmpty. Operand 2505 states and 3450 transitions. [2021-11-19 14:36:31,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2021-11-19 14:36:31,805 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:36:31,805 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 11, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:36:31,850 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (29)] Forceful destruction successful, exit code 0 [2021-11-19 14:36:32,030 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:36:32,030 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-19 14:36:32,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:36:32,031 INFO L85 PathProgramCache]: Analyzing trace with hash -358970397, now seen corresponding path program 1 times [2021-11-19 14:36:32,033 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:36:32,033 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [588729995] [2021-11-19 14:36:32,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:36:32,033 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:36:32,033 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:36:32,034 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:36:32,039 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (30)] Waiting until timeout for monitored process [2021-11-19 14:36:33,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:36:33,947 INFO L263 TraceCheckSpWp]: Trace formula consists of 2061 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-19 14:36:33,951 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:36:34,583 INFO L134 CoverageAnalysis]: Checked inductivity of 295 backedges. 117 proven. 0 refuted. 0 times theorem prover too weak. 178 trivial. 0 not checked. [2021-11-19 14:36:34,583 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:36:35,058 INFO L134 CoverageAnalysis]: Checked inductivity of 295 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 295 trivial. 0 not checked. [2021-11-19 14:36:35,058 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:36:35,058 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [588729995] [2021-11-19 14:36:35,058 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [588729995] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:36:35,058 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:36:35,058 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-11-19 14:36:35,058 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1657475180] [2021-11-19 14:36:35,059 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:36:35,059 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 14:36:35,059 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:36:35,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 14:36:35,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-19 14:36:35,060 INFO L87 Difference]: Start difference. First operand 2505 states and 3450 transitions. Second operand has 5 states, 5 states have (on average 19.8) internal successors, (99), 5 states have internal predecessors, (99), 2 states have call successors, (48), 2 states have call predecessors, (48), 2 states have return successors, (44), 2 states have call predecessors, (44), 2 states have call successors, (44) [2021-11-19 14:36:36,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:36:36,193 INFO L93 Difference]: Finished difference Result 5364 states and 7491 transitions. [2021-11-19 14:36:36,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-19 14:36:36,194 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 5 states have internal predecessors, (99), 2 states have call successors, (48), 2 states have call predecessors, (48), 2 states have return successors, (44), 2 states have call predecessors, (44), 2 states have call successors, (44) Word has length 195 [2021-11-19 14:36:36,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:36:36,206 INFO L225 Difference]: With dead ends: 5364 [2021-11-19 14:36:36,207 INFO L226 Difference]: Without dead ends: 3096 [2021-11-19 14:36:36,216 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 389 GetRequests, 385 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-19 14:36:36,223 INFO L933 BasicCegarLoop]: 3930 mSDtfsCounter, 1272 mSDsluCounter, 10168 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 453 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1480 SdHoareTripleChecker+Valid, 14098 SdHoareTripleChecker+Invalid, 472 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 453 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-11-19 14:36:36,224 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1480 Valid, 14098 Invalid, 472 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [453 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-11-19 14:36:36,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3096 states. [2021-11-19 14:36:36,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3096 to 2505. [2021-11-19 14:36:36,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2505 states, 1713 states have (on average 1.258610624635143) internal successors, (2156), 1775 states have internal predecessors, (2156), 647 states have call successors, (647), 135 states have call predecessors, (647), 135 states have return successors, (646), 628 states have call predecessors, (646), 645 states have call successors, (646) [2021-11-19 14:36:36,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2505 states to 2505 states and 3449 transitions. [2021-11-19 14:36:36,544 INFO L78 Accepts]: Start accepts. Automaton has 2505 states and 3449 transitions. Word has length 195 [2021-11-19 14:36:36,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:36:36,545 INFO L470 AbstractCegarLoop]: Abstraction has 2505 states and 3449 transitions. [2021-11-19 14:36:36,545 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 5 states have internal predecessors, (99), 2 states have call successors, (48), 2 states have call predecessors, (48), 2 states have return successors, (44), 2 states have call predecessors, (44), 2 states have call successors, (44) [2021-11-19 14:36:36,545 INFO L276 IsEmpty]: Start isEmpty. Operand 2505 states and 3449 transitions. [2021-11-19 14:36:36,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2021-11-19 14:36:36,549 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:36:36,549 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:36:36,603 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (30)] Forceful destruction successful, exit code 0 [2021-11-19 14:36:36,774 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:36:36,774 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ldv_linux_net_sock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-19 14:36:36,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:36:36,775 INFO L85 PathProgramCache]: Analyzing trace with hash 1311406835, now seen corresponding path program 1 times [2021-11-19 14:36:36,776 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:36:36,776 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [710133132] [2021-11-19 14:36:36,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:36:36,777 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:36:36,777 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:36:36,777 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:36:36,780 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (31)] Waiting until timeout for monitored process [2021-11-19 14:36:38,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:36:38,406 INFO L263 TraceCheckSpWp]: Trace formula consists of 1808 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 14:36:38,409 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:36:39,362 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-19 14:36:39,362 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:36:39,854 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-19 14:36:39,854 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:36:39,854 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [710133132] [2021-11-19 14:36:39,854 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [710133132] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:36:39,854 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:36:39,854 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-19 14:36:39,855 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1677024484] [2021-11-19 14:36:39,855 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:36:39,855 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 14:36:39,856 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:36:39,856 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 14:36:39,856 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-19 14:36:39,856 INFO L87 Difference]: Start difference. First operand 2505 states and 3449 transitions. Second operand has 5 states, 5 states have (on average 37.6) internal successors, (188), 5 states have internal predecessors, (188), 2 states have call successors, (51), 2 states have call predecessors, (51), 2 states have return successors, (50), 2 states have call predecessors, (50), 2 states have call successors, (50) [2021-11-19 14:36:40,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:36:40,102 INFO L93 Difference]: Finished difference Result 2505 states and 3449 transitions. [2021-11-19 14:36:40,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:36:40,103 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 37.6) internal successors, (188), 5 states have internal predecessors, (188), 2 states have call successors, (51), 2 states have call predecessors, (51), 2 states have return successors, (50), 2 states have call predecessors, (50), 2 states have call successors, (50) Word has length 163 [2021-11-19 14:36:40,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:36:40,108 INFO L225 Difference]: With dead ends: 2505 [2021-11-19 14:36:40,109 INFO L226 Difference]: Without dead ends: 2503 [2021-11-19 14:36:40,110 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 325 GetRequests, 321 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-19 14:36:40,110 INFO L933 BasicCegarLoop]: 3370 mSDtfsCounter, 3224 mSDsluCounter, 3368 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3226 SdHoareTripleChecker+Valid, 6738 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 14:36:40,111 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3226 Valid, 6738 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 14:36:40,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2503 states. [2021-11-19 14:36:40,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2503 to 2503. [2021-11-19 14:36:40,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2503 states, 1712 states have (on average 1.2581775700934579) internal successors, (2154), 1773 states have internal predecessors, (2154), 647 states have call successors, (647), 135 states have call predecessors, (647), 135 states have return successors, (646), 628 states have call predecessors, (646), 645 states have call successors, (646) [2021-11-19 14:36:40,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2503 states to 2503 states and 3447 transitions. [2021-11-19 14:36:40,378 INFO L78 Accepts]: Start accepts. Automaton has 2503 states and 3447 transitions. Word has length 163 [2021-11-19 14:36:40,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:36:40,378 INFO L470 AbstractCegarLoop]: Abstraction has 2503 states and 3447 transitions. [2021-11-19 14:36:40,379 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 37.6) internal successors, (188), 5 states have internal predecessors, (188), 2 states have call successors, (51), 2 states have call predecessors, (51), 2 states have return successors, (50), 2 states have call predecessors, (50), 2 states have call successors, (50) [2021-11-19 14:36:40,379 INFO L276 IsEmpty]: Start isEmpty. Operand 2503 states and 3447 transitions. [2021-11-19 14:36:40,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2021-11-19 14:36:40,381 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:36:40,381 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:36:40,410 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (31)] Forceful destruction successful, exit code 0 [2021-11-19 14:36:40,581 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:36:40,582 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-19 14:36:40,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:36:40,583 INFO L85 PathProgramCache]: Analyzing trace with hash -116225243, now seen corresponding path program 1 times [2021-11-19 14:36:40,584 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:36:40,584 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1202419058] [2021-11-19 14:36:40,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:36:40,584 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:36:40,584 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:36:40,585 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:36:40,586 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (32)] Waiting until timeout for monitored process [2021-11-19 14:36:42,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:36:42,222 INFO L263 TraceCheckSpWp]: Trace formula consists of 1817 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 14:36:42,226 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:36:43,324 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-19 14:36:43,324 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:36:43,828 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-19 14:36:43,828 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:36:43,829 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1202419058] [2021-11-19 14:36:43,829 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1202419058] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:36:43,829 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:36:43,829 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-19 14:36:43,829 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1573960620] [2021-11-19 14:36:43,830 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:36:43,830 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 14:36:43,831 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:36:43,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 14:36:43,831 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-19 14:36:43,831 INFO L87 Difference]: Start difference. First operand 2503 states and 3447 transitions. Second operand has 5 states, 5 states have (on average 39.2) internal successors, (196), 5 states have internal predecessors, (196), 2 states have call successors, (53), 2 states have call predecessors, (53), 2 states have return successors, (52), 2 states have call predecessors, (52), 2 states have call successors, (52) [2021-11-19 14:36:44,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:36:44,084 INFO L93 Difference]: Finished difference Result 2503 states and 3447 transitions. [2021-11-19 14:36:44,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:36:44,085 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 39.2) internal successors, (196), 5 states have internal predecessors, (196), 2 states have call successors, (53), 2 states have call predecessors, (53), 2 states have return successors, (52), 2 states have call predecessors, (52), 2 states have call successors, (52) Word has length 169 [2021-11-19 14:36:44,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:36:44,090 INFO L225 Difference]: With dead ends: 2503 [2021-11-19 14:36:44,091 INFO L226 Difference]: Without dead ends: 2501 [2021-11-19 14:36:44,092 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 337 GetRequests, 333 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-19 14:36:44,092 INFO L933 BasicCegarLoop]: 3368 mSDtfsCounter, 3213 mSDsluCounter, 6732 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3215 SdHoareTripleChecker+Valid, 10100 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 14:36:44,093 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3215 Valid, 10100 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 14:36:44,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2501 states. [2021-11-19 14:36:44,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2501 to 2501. [2021-11-19 14:36:44,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2501 states, 1711 states have (on average 1.2577440093512566) internal successors, (2152), 1771 states have internal predecessors, (2152), 647 states have call successors, (647), 135 states have call predecessors, (647), 135 states have return successors, (646), 628 states have call predecessors, (646), 645 states have call successors, (646) [2021-11-19 14:36:44,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2501 states to 2501 states and 3445 transitions. [2021-11-19 14:36:44,314 INFO L78 Accepts]: Start accepts. Automaton has 2501 states and 3445 transitions. Word has length 169 [2021-11-19 14:36:44,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:36:44,314 INFO L470 AbstractCegarLoop]: Abstraction has 2501 states and 3445 transitions. [2021-11-19 14:36:44,315 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 39.2) internal successors, (196), 5 states have internal predecessors, (196), 2 states have call successors, (53), 2 states have call predecessors, (53), 2 states have return successors, (52), 2 states have call predecessors, (52), 2 states have call successors, (52) [2021-11-19 14:36:44,315 INFO L276 IsEmpty]: Start isEmpty. Operand 2501 states and 3445 transitions. [2021-11-19 14:36:44,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2021-11-19 14:36:44,317 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:36:44,317 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:36:44,345 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (32)] Forceful destruction successful, exit code 0 [2021-11-19 14:36:44,522 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:36:44,522 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-19 14:36:44,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:36:44,523 INFO L85 PathProgramCache]: Analyzing trace with hash 769221487, now seen corresponding path program 1 times [2021-11-19 14:36:44,524 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:36:44,524 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [345061479] [2021-11-19 14:36:44,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:36:44,524 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:36:44,525 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:36:44,525 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:36:44,526 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (33)] Waiting until timeout for monitored process [2021-11-19 14:36:46,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:36:46,468 INFO L263 TraceCheckSpWp]: Trace formula consists of 2098 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-19 14:36:46,471 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:36:47,226 INFO L134 CoverageAnalysis]: Checked inductivity of 354 backedges. 170 proven. 0 refuted. 0 times theorem prover too weak. 184 trivial. 0 not checked. [2021-11-19 14:36:47,226 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:36:47,865 INFO L134 CoverageAnalysis]: Checked inductivity of 354 backedges. 9 proven. 24 refuted. 0 times theorem prover too weak. 321 trivial. 0 not checked. [2021-11-19 14:36:47,865 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:36:47,865 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [345061479] [2021-11-19 14:36:47,865 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [345061479] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-19 14:36:47,866 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-19 14:36:47,866 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [8] total 9 [2021-11-19 14:36:47,866 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [982378924] [2021-11-19 14:36:47,866 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 14:36:47,866 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-19 14:36:47,867 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:36:47,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-19 14:36:47,867 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-11-19 14:36:47,867 INFO L87 Difference]: Start difference. First operand 2501 states and 3445 transitions. Second operand has 8 states, 8 states have (on average 11.5) internal successors, (92), 7 states have internal predecessors, (92), 2 states have call successors, (31), 2 states have call predecessors, (31), 3 states have return successors, (27), 3 states have call predecessors, (27), 2 states have call successors, (27) [2021-11-19 14:36:49,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:36:49,883 INFO L93 Difference]: Finished difference Result 5908 states and 8313 transitions. [2021-11-19 14:36:49,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-19 14:36:49,885 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.5) internal successors, (92), 7 states have internal predecessors, (92), 2 states have call successors, (31), 2 states have call predecessors, (31), 3 states have return successors, (27), 3 states have call predecessors, (27), 2 states have call successors, (27) Word has length 211 [2021-11-19 14:36:49,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:36:49,897 INFO L225 Difference]: With dead ends: 5908 [2021-11-19 14:36:49,897 INFO L226 Difference]: Without dead ends: 3644 [2021-11-19 14:36:49,906 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 424 GetRequests, 413 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2021-11-19 14:36:49,907 INFO L933 BasicCegarLoop]: 3788 mSDtfsCounter, 2257 mSDsluCounter, 22942 mSDsCounter, 0 mSdLazyCounter, 239 mSolverCounterSat, 834 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2465 SdHoareTripleChecker+Valid, 26730 SdHoareTripleChecker+Invalid, 1073 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 834 IncrementalHoareTripleChecker+Valid, 239 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2021-11-19 14:36:49,908 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2465 Valid, 26730 Invalid, 1073 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [834 Valid, 239 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2021-11-19 14:36:49,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3644 states. [2021-11-19 14:36:50,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3644 to 2504. [2021-11-19 14:36:50,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2504 states, 1714 states have (on average 1.2572928821470244) internal successors, (2155), 1774 states have internal predecessors, (2155), 647 states have call successors, (647), 135 states have call predecessors, (647), 135 states have return successors, (646), 628 states have call predecessors, (646), 645 states have call successors, (646) [2021-11-19 14:36:50,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2504 states to 2504 states and 3448 transitions. [2021-11-19 14:36:50,203 INFO L78 Accepts]: Start accepts. Automaton has 2504 states and 3448 transitions. Word has length 211 [2021-11-19 14:36:50,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:36:50,203 INFO L470 AbstractCegarLoop]: Abstraction has 2504 states and 3448 transitions. [2021-11-19 14:36:50,203 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.5) internal successors, (92), 7 states have internal predecessors, (92), 2 states have call successors, (31), 2 states have call predecessors, (31), 3 states have return successors, (27), 3 states have call predecessors, (27), 2 states have call successors, (27) [2021-11-19 14:36:50,204 INFO L276 IsEmpty]: Start isEmpty. Operand 2504 states and 3448 transitions. [2021-11-19 14:36:50,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2021-11-19 14:36:50,205 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:36:50,206 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:36:50,243 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (33)] Forceful destruction successful, exit code 0 [2021-11-19 14:36:50,406 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:36:50,406 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-19 14:36:50,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:36:50,407 INFO L85 PathProgramCache]: Analyzing trace with hash -603225561, now seen corresponding path program 1 times [2021-11-19 14:36:50,409 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:36:50,409 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1459988566] [2021-11-19 14:36:50,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:36:50,410 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:36:50,410 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:36:50,411 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:36:50,434 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (34)] Waiting until timeout for monitored process [2021-11-19 14:36:52,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:36:52,129 INFO L263 TraceCheckSpWp]: Trace formula consists of 1826 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 14:36:52,131 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:36:53,170 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-19 14:36:53,170 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:36:53,696 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-19 14:36:53,696 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:36:53,696 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1459988566] [2021-11-19 14:36:53,696 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1459988566] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:36:53,696 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:36:53,696 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-19 14:36:53,697 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [22183826] [2021-11-19 14:36:53,697 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:36:53,697 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 14:36:53,697 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:36:53,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 14:36:53,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-19 14:36:53,698 INFO L87 Difference]: Start difference. First operand 2504 states and 3448 transitions. Second operand has 5 states, 5 states have (on average 40.8) internal successors, (204), 5 states have internal predecessors, (204), 2 states have call successors, (55), 2 states have call predecessors, (55), 2 states have return successors, (54), 2 states have call predecessors, (54), 2 states have call successors, (54) [2021-11-19 14:36:54,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:36:54,003 INFO L93 Difference]: Finished difference Result 2504 states and 3448 transitions. [2021-11-19 14:36:54,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:36:54,003 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 40.8) internal successors, (204), 5 states have internal predecessors, (204), 2 states have call successors, (55), 2 states have call predecessors, (55), 2 states have return successors, (54), 2 states have call predecessors, (54), 2 states have call successors, (54) Word has length 175 [2021-11-19 14:36:54,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:36:54,009 INFO L225 Difference]: With dead ends: 2504 [2021-11-19 14:36:54,009 INFO L226 Difference]: Without dead ends: 2502 [2021-11-19 14:36:54,011 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 349 GetRequests, 345 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-19 14:36:54,011 INFO L933 BasicCegarLoop]: 3366 mSDtfsCounter, 3205 mSDsluCounter, 6728 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3207 SdHoareTripleChecker+Valid, 10094 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 14:36:54,011 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3207 Valid, 10094 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 14:36:54,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2502 states. [2021-11-19 14:36:54,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2502 to 2502. [2021-11-19 14:36:54,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2502 states, 1713 states have (on average 1.2568593111500292) internal successors, (2153), 1772 states have internal predecessors, (2153), 647 states have call successors, (647), 135 states have call predecessors, (647), 135 states have return successors, (646), 628 states have call predecessors, (646), 645 states have call successors, (646) [2021-11-19 14:36:54,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2502 states to 2502 states and 3446 transitions. [2021-11-19 14:36:54,408 INFO L78 Accepts]: Start accepts. Automaton has 2502 states and 3446 transitions. Word has length 175 [2021-11-19 14:36:54,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:36:54,409 INFO L470 AbstractCegarLoop]: Abstraction has 2502 states and 3446 transitions. [2021-11-19 14:36:54,409 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 40.8) internal successors, (204), 5 states have internal predecessors, (204), 2 states have call successors, (55), 2 states have call predecessors, (55), 2 states have return successors, (54), 2 states have call predecessors, (54), 2 states have call successors, (54) [2021-11-19 14:36:54,409 INFO L276 IsEmpty]: Start isEmpty. Operand 2502 states and 3446 transitions. [2021-11-19 14:36:54,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2021-11-19 14:36:54,412 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:36:54,413 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:36:54,452 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (34)] Ended with exit code 0 [2021-11-19 14:36:54,638 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:36:54,638 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ldv_linux_usb_urb_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-19 14:36:54,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:36:54,639 INFO L85 PathProgramCache]: Analyzing trace with hash -914687560, now seen corresponding path program 1 times [2021-11-19 14:36:54,640 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:36:54,640 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [733310511] [2021-11-19 14:36:54,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:36:54,640 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:36:54,640 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:36:54,641 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:36:54,643 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (35)] Waiting until timeout for monitored process [2021-11-19 14:36:56,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:36:56,279 INFO L263 TraceCheckSpWp]: Trace formula consists of 1835 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 14:36:56,281 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:36:57,334 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-19 14:36:57,335 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:36:57,885 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-19 14:36:57,885 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:36:57,886 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [733310511] [2021-11-19 14:36:57,886 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [733310511] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:36:57,886 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:36:57,886 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-19 14:36:57,886 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1366651517] [2021-11-19 14:36:57,886 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:36:57,887 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 14:36:57,887 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:36:57,887 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 14:36:57,887 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-19 14:36:57,887 INFO L87 Difference]: Start difference. First operand 2502 states and 3446 transitions. Second operand has 5 states, 5 states have (on average 42.4) internal successors, (212), 5 states have internal predecessors, (212), 2 states have call successors, (57), 2 states have call predecessors, (57), 2 states have return successors, (56), 2 states have call predecessors, (56), 2 states have call successors, (56) [2021-11-19 14:36:58,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:36:58,200 INFO L93 Difference]: Finished difference Result 2502 states and 3446 transitions. [2021-11-19 14:36:58,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:36:58,201 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 42.4) internal successors, (212), 5 states have internal predecessors, (212), 2 states have call successors, (57), 2 states have call predecessors, (57), 2 states have return successors, (56), 2 states have call predecessors, (56), 2 states have call successors, (56) Word has length 181 [2021-11-19 14:36:58,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:36:58,207 INFO L225 Difference]: With dead ends: 2502 [2021-11-19 14:36:58,207 INFO L226 Difference]: Without dead ends: 2296 [2021-11-19 14:36:58,209 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 361 GetRequests, 357 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-19 14:36:58,209 INFO L933 BasicCegarLoop]: 3365 mSDtfsCounter, 3196 mSDsluCounter, 6730 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3196 SdHoareTripleChecker+Valid, 10095 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 14:36:58,210 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3196 Valid, 10095 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 14:36:58,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2296 states. [2021-11-19 14:36:58,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2296 to 2296. [2021-11-19 14:36:58,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2296 states, 1583 states have (on average 1.2747946936197094) internal successors, (2018), 1639 states have internal predecessors, (2018), 595 states have call successors, (595), 112 states have call predecessors, (595), 112 states have return successors, (595), 578 states have call predecessors, (595), 595 states have call successors, (595) [2021-11-19 14:36:58,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2296 states to 2296 states and 3208 transitions. [2021-11-19 14:36:58,436 INFO L78 Accepts]: Start accepts. Automaton has 2296 states and 3208 transitions. Word has length 181 [2021-11-19 14:36:58,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:36:58,436 INFO L470 AbstractCegarLoop]: Abstraction has 2296 states and 3208 transitions. [2021-11-19 14:36:58,437 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 42.4) internal successors, (212), 5 states have internal predecessors, (212), 2 states have call successors, (57), 2 states have call predecessors, (57), 2 states have return successors, (56), 2 states have call predecessors, (56), 2 states have call successors, (56) [2021-11-19 14:36:58,437 INFO L276 IsEmpty]: Start isEmpty. Operand 2296 states and 3208 transitions. [2021-11-19 14:36:58,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2021-11-19 14:36:58,440 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:36:58,441 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:36:58,494 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (35)] Forceful destruction successful, exit code 0 [2021-11-19 14:36:58,654 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:36:58,654 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-19 14:36:58,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:36:58,655 INFO L85 PathProgramCache]: Analyzing trace with hash -424519190, now seen corresponding path program 1 times [2021-11-19 14:36:58,657 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:36:58,657 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1302498084] [2021-11-19 14:36:58,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:36:58,657 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:36:58,657 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:36:58,658 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:36:58,703 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (36)] Waiting until timeout for monitored process [2021-11-19 14:37:00,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:37:00,629 INFO L263 TraceCheckSpWp]: Trace formula consists of 2131 conjuncts, 27 conjunts are in the unsatisfiable core [2021-11-19 14:37:00,635 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:37:02,178 INFO L134 CoverageAnalysis]: Checked inductivity of 354 backedges. 201 proven. 3 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2021-11-19 14:37:02,178 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:37:03,401 INFO L134 CoverageAnalysis]: Checked inductivity of 354 backedges. 21 proven. 39 refuted. 0 times theorem prover too weak. 294 trivial. 0 not checked. [2021-11-19 14:37:03,401 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:37:03,401 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1302498084] [2021-11-19 14:37:03,401 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1302498084] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 14:37:03,401 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1094196168] [2021-11-19 14:37:03,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:37:03,402 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-19 14:37:03,402 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs/cvc4 [2021-11-19 14:37:03,403 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-19 14:37:03,405 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (37)] Waiting until timeout for monitored process [2021-11-19 14:37:09,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:37:09,378 INFO L263 TraceCheckSpWp]: Trace formula consists of 2131 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-19 14:37:09,381 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:37:10,213 INFO L134 CoverageAnalysis]: Checked inductivity of 354 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 354 trivial. 0 not checked. [2021-11-19 14:37:10,213 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:37:11,275 INFO L134 CoverageAnalysis]: Checked inductivity of 354 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 354 trivial. 0 not checked. [2021-11-19 14:37:11,275 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1094196168] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:37:11,275 INFO L186 FreeRefinementEngine]: Found 2 perfect and 2 imperfect interpolant sequences. [2021-11-19 14:37:11,276 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [18, 18] total 27 [2021-11-19 14:37:11,276 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [928397762] [2021-11-19 14:37:11,276 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:37:11,276 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-19 14:37:11,276 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:37:11,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-19 14:37:11,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=645, Unknown=0, NotChecked=0, Total=702 [2021-11-19 14:37:11,277 INFO L87 Difference]: Start difference. First operand 2296 states and 3208 transitions. Second operand has 8 states, 6 states have (on average 17.333333333333332) internal successors, (104), 7 states have internal predecessors, (104), 4 states have call successors, (34), 2 states have call predecessors, (34), 3 states have return successors, (30), 2 states have call predecessors, (30), 3 states have call successors, (30) [2021-11-19 14:37:12,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:37:12,379 INFO L93 Difference]: Finished difference Result 4348 states and 6097 transitions. [2021-11-19 14:37:12,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-19 14:37:12,381 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 17.333333333333332) internal successors, (104), 7 states have internal predecessors, (104), 4 states have call successors, (34), 2 states have call predecessors, (34), 3 states have return successors, (30), 2 states have call predecessors, (30), 3 states have call successors, (30) Word has length 234 [2021-11-19 14:37:12,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:37:12,388 INFO L225 Difference]: With dead ends: 4348 [2021-11-19 14:37:12,388 INFO L226 Difference]: Without dead ends: 2296 [2021-11-19 14:37:12,394 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 933 GetRequests, 907 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=62, Invalid=694, Unknown=0, NotChecked=0, Total=756 [2021-11-19 14:37:12,395 INFO L933 BasicCegarLoop]: 3147 mSDtfsCounter, 49 mSDsluCounter, 18744 mSDsCounter, 0 mSdLazyCounter, 246 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 21891 SdHoareTripleChecker+Invalid, 316 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 246 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 70 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-11-19 14:37:12,395 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [65 Valid, 21891 Invalid, 316 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 246 Invalid, 0 Unknown, 70 Unchecked, 0.7s Time] [2021-11-19 14:37:12,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2296 states. [2021-11-19 14:37:12,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2296 to 2296. [2021-11-19 14:37:12,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2296 states, 1583 states have (on average 1.2741629816803537) internal successors, (2017), 1639 states have internal predecessors, (2017), 595 states have call successors, (595), 112 states have call predecessors, (595), 112 states have return successors, (595), 578 states have call predecessors, (595), 595 states have call successors, (595) [2021-11-19 14:37:12,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2296 states to 2296 states and 3207 transitions. [2021-11-19 14:37:12,706 INFO L78 Accepts]: Start accepts. Automaton has 2296 states and 3207 transitions. Word has length 234 [2021-11-19 14:37:12,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:37:12,707 INFO L470 AbstractCegarLoop]: Abstraction has 2296 states and 3207 transitions. [2021-11-19 14:37:12,708 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 17.333333333333332) internal successors, (104), 7 states have internal predecessors, (104), 4 states have call successors, (34), 2 states have call predecessors, (34), 3 states have return successors, (30), 2 states have call predecessors, (30), 3 states have call successors, (30) [2021-11-19 14:37:12,708 INFO L276 IsEmpty]: Start isEmpty. Operand 2296 states and 3207 transitions. [2021-11-19 14:37:12,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2021-11-19 14:37:12,711 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:37:12,711 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:37:12,750 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (36)] Forceful destruction successful, exit code 0 [2021-11-19 14:37:12,939 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (37)] Forceful destruction successful, exit code 0 [2021-11-19 14:37:13,113 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3,37 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt [2021-11-19 14:37:13,114 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-19 14:37:13,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:37:13,114 INFO L85 PathProgramCache]: Analyzing trace with hash -1011325204, now seen corresponding path program 1 times [2021-11-19 14:37:13,116 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:37:13,116 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2136001043] [2021-11-19 14:37:13,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:37:13,116 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:37:13,116 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:37:13,117 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:37:13,118 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (38)] Waiting until timeout for monitored process [2021-11-19 14:37:15,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:37:15,131 INFO L263 TraceCheckSpWp]: Trace formula consists of 2131 conjuncts, 27 conjunts are in the unsatisfiable core [2021-11-19 14:37:15,134 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:37:16,584 INFO L134 CoverageAnalysis]: Checked inductivity of 354 backedges. 201 proven. 3 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2021-11-19 14:37:16,584 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:37:17,792 INFO L134 CoverageAnalysis]: Checked inductivity of 354 backedges. 21 proven. 39 refuted. 0 times theorem prover too weak. 294 trivial. 0 not checked. [2021-11-19 14:37:17,792 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:37:17,792 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2136001043] [2021-11-19 14:37:17,792 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2136001043] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 14:37:17,793 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1445745101] [2021-11-19 14:37:17,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:37:17,793 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-19 14:37:17,793 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs/cvc4 [2021-11-19 14:37:17,794 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-19 14:37:17,796 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (39)] Waiting until timeout for monitored process [2021-11-19 14:37:25,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:37:25,758 INFO L263 TraceCheckSpWp]: Trace formula consists of 2131 conjuncts, 25 conjunts are in the unsatisfiable core [2021-11-19 14:37:25,763 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:37:26,477 INFO L134 CoverageAnalysis]: Checked inductivity of 354 backedges. 195 proven. 0 refuted. 0 times theorem prover too weak. 159 trivial. 0 not checked. [2021-11-19 14:37:26,477 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:37:27,413 INFO L134 CoverageAnalysis]: Checked inductivity of 354 backedges. 15 proven. 18 refuted. 0 times theorem prover too weak. 321 trivial. 0 not checked. [2021-11-19 14:37:27,414 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1445745101] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-19 14:37:27,414 INFO L186 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2021-11-19 14:37:27,414 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [18, 18, 15] total 21 [2021-11-19 14:37:27,415 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1276042559] [2021-11-19 14:37:27,415 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 14:37:27,415 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-11-19 14:37:27,416 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:37:27,416 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-11-19 14:37:27,416 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=377, Unknown=0, NotChecked=0, Total=420 [2021-11-19 14:37:27,417 INFO L87 Difference]: Start difference. First operand 2296 states and 3207 transitions. Second operand has 15 states, 14 states have (on average 7.928571428571429) internal successors, (111), 14 states have internal predecessors, (111), 7 states have call successors, (33), 2 states have call predecessors, (33), 4 states have return successors, (29), 7 states have call predecessors, (29), 7 states have call successors, (29) [2021-11-19 14:37:29,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:37:29,856 INFO L93 Difference]: Finished difference Result 4372 states and 6127 transitions. [2021-11-19 14:37:29,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-19 14:37:29,857 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 7.928571428571429) internal successors, (111), 14 states have internal predecessors, (111), 7 states have call successors, (33), 2 states have call predecessors, (33), 4 states have return successors, (29), 7 states have call predecessors, (29), 7 states have call successors, (29) Word has length 234 [2021-11-19 14:37:29,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:37:29,866 INFO L225 Difference]: With dead ends: 4372 [2021-11-19 14:37:29,866 INFO L226 Difference]: Without dead ends: 2283 [2021-11-19 14:37:29,874 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 941 GetRequests, 913 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=125, Invalid=745, Unknown=0, NotChecked=0, Total=870 [2021-11-19 14:37:29,874 INFO L933 BasicCegarLoop]: 3159 mSDtfsCounter, 36 mSDsluCounter, 41019 mSDsCounter, 0 mSdLazyCounter, 400 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 44178 SdHoareTripleChecker+Invalid, 435 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 400 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2021-11-19 14:37:29,875 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [36 Valid, 44178 Invalid, 435 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [35 Valid, 400 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2021-11-19 14:37:29,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2283 states. [2021-11-19 14:37:30,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2283 to 2283. [2021-11-19 14:37:30,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2283 states, 1574 states have (on average 1.2744599745870393) internal successors, (2006), 1630 states have internal predecessors, (2006), 592 states have call successors, (592), 111 states have call predecessors, (592), 111 states have return successors, (592), 575 states have call predecessors, (592), 592 states have call successors, (592) [2021-11-19 14:37:30,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2283 states to 2283 states and 3190 transitions. [2021-11-19 14:37:30,152 INFO L78 Accepts]: Start accepts. Automaton has 2283 states and 3190 transitions. Word has length 234 [2021-11-19 14:37:30,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:37:30,153 INFO L470 AbstractCegarLoop]: Abstraction has 2283 states and 3190 transitions. [2021-11-19 14:37:30,153 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 7.928571428571429) internal successors, (111), 14 states have internal predecessors, (111), 7 states have call successors, (33), 2 states have call predecessors, (33), 4 states have return successors, (29), 7 states have call predecessors, (29), 7 states have call successors, (29) [2021-11-19 14:37:30,153 INFO L276 IsEmpty]: Start isEmpty. Operand 2283 states and 3190 transitions. [2021-11-19 14:37:30,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 253 [2021-11-19 14:37:30,155 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:37:30,155 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 14, 7, 7, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:37:30,193 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (38)] Forceful destruction successful, exit code 0 [2021-11-19 14:37:30,382 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (39)] Forceful destruction successful, exit code 0 [2021-11-19 14:37:30,556 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 38 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3,39 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt [2021-11-19 14:37:30,556 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-19 14:37:30,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:37:30,557 INFO L85 PathProgramCache]: Analyzing trace with hash 641338916, now seen corresponding path program 1 times [2021-11-19 14:37:30,558 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:37:30,559 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1585544341] [2021-11-19 14:37:30,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:37:30,559 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:37:30,559 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:37:30,560 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:37:30,561 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (40)] Waiting until timeout for monitored process [2021-11-19 14:37:32,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:37:32,942 INFO L263 TraceCheckSpWp]: Trace formula consists of 2189 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-19 14:37:32,948 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:37:34,485 INFO L134 CoverageAnalysis]: Checked inductivity of 508 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 508 trivial. 0 not checked. [2021-11-19 14:37:34,485 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:37:35,538 INFO L134 CoverageAnalysis]: Checked inductivity of 508 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 508 trivial. 0 not checked. [2021-11-19 14:37:35,538 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:37:35,539 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1585544341] [2021-11-19 14:37:35,539 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1585544341] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:37:35,539 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:37:35,539 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 5] imperfect sequences [] total 7 [2021-11-19 14:37:35,540 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [284404713] [2021-11-19 14:37:35,540 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:37:35,541 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-19 14:37:35,541 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:37:35,541 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-19 14:37:35,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-19 14:37:35,542 INFO L87 Difference]: Start difference. First operand 2283 states and 3190 transitions. Second operand has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 5 states have internal predecessors, (131), 2 states have call successors, (65), 4 states have call predecessors, (65), 2 states have return successors, (60), 2 states have call predecessors, (60), 2 states have call successors, (60) [2021-11-19 14:37:35,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:37:35,861 INFO L93 Difference]: Finished difference Result 2287 states and 3193 transitions. [2021-11-19 14:37:35,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-19 14:37:35,862 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 5 states have internal predecessors, (131), 2 states have call successors, (65), 4 states have call predecessors, (65), 2 states have return successors, (60), 2 states have call predecessors, (60), 2 states have call successors, (60) Word has length 252 [2021-11-19 14:37:35,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:37:35,867 INFO L225 Difference]: With dead ends: 2287 [2021-11-19 14:37:35,867 INFO L226 Difference]: Without dead ends: 2285 [2021-11-19 14:37:35,868 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 504 GetRequests, 497 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2021-11-19 14:37:35,869 INFO L933 BasicCegarLoop]: 3164 mSDtfsCounter, 2955 mSDsluCounter, 6390 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2956 SdHoareTripleChecker+Valid, 9554 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 14:37:35,869 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2956 Valid, 9554 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 14:37:35,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2285 states. [2021-11-19 14:37:36,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2285 to 2285. [2021-11-19 14:37:36,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2285 states, 1576 states have (on average 1.273477157360406) internal successors, (2007), 1631 states have internal predecessors, (2007), 592 states have call successors, (592), 112 states have call predecessors, (592), 112 states have return successors, (592), 575 states have call predecessors, (592), 592 states have call successors, (592) [2021-11-19 14:37:36,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2285 states to 2285 states and 3191 transitions. [2021-11-19 14:37:36,104 INFO L78 Accepts]: Start accepts. Automaton has 2285 states and 3191 transitions. Word has length 252 [2021-11-19 14:37:36,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:37:36,105 INFO L470 AbstractCegarLoop]: Abstraction has 2285 states and 3191 transitions. [2021-11-19 14:37:36,105 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 5 states have internal predecessors, (131), 2 states have call successors, (65), 4 states have call predecessors, (65), 2 states have return successors, (60), 2 states have call predecessors, (60), 2 states have call successors, (60) [2021-11-19 14:37:36,105 INFO L276 IsEmpty]: Start isEmpty. Operand 2285 states and 3191 transitions. [2021-11-19 14:37:36,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 270 [2021-11-19 14:37:36,108 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:37:36,108 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 14, 7, 7, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:37:36,152 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (40)] Ended with exit code 0 [2021-11-19 14:37:36,309 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 40 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:37:36,309 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-19 14:37:36,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:37:36,309 INFO L85 PathProgramCache]: Analyzing trace with hash -1774183382, now seen corresponding path program 1 times [2021-11-19 14:37:36,311 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:37:36,311 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [469582365] [2021-11-19 14:37:36,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:37:36,312 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:37:36,312 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:37:36,312 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:37:36,313 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (41)] Waiting until timeout for monitored process [2021-11-19 14:37:38,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:37:39,059 INFO L263 TraceCheckSpWp]: Trace formula consists of 2287 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-19 14:37:39,063 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:37:40,723 INFO L134 CoverageAnalysis]: Checked inductivity of 523 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 523 trivial. 0 not checked. [2021-11-19 14:37:40,723 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:37:41,732 INFO L134 CoverageAnalysis]: Checked inductivity of 523 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 523 trivial. 0 not checked. [2021-11-19 14:37:41,733 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:37:41,733 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [469582365] [2021-11-19 14:37:41,733 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [469582365] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:37:41,733 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:37:41,734 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 5] imperfect sequences [] total 7 [2021-11-19 14:37:41,734 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [121875539] [2021-11-19 14:37:41,735 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:37:41,737 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-19 14:37:41,737 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:37:41,737 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-19 14:37:41,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-19 14:37:41,739 INFO L87 Difference]: Start difference. First operand 2285 states and 3191 transitions. Second operand has 7 states, 7 states have (on average 19.571428571428573) internal successors, (137), 5 states have internal predecessors, (137), 2 states have call successors, (70), 4 states have call predecessors, (70), 2 states have return successors, (66), 2 states have call predecessors, (66), 2 states have call successors, (66) [2021-11-19 14:37:42,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:37:42,106 INFO L93 Difference]: Finished difference Result 2352 states and 3256 transitions. [2021-11-19 14:37:42,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-19 14:37:42,106 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 19.571428571428573) internal successors, (137), 5 states have internal predecessors, (137), 2 states have call successors, (70), 4 states have call predecessors, (70), 2 states have return successors, (66), 2 states have call predecessors, (66), 2 states have call successors, (66) Word has length 269 [2021-11-19 14:37:42,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:37:42,112 INFO L225 Difference]: With dead ends: 2352 [2021-11-19 14:37:42,112 INFO L226 Difference]: Without dead ends: 2350 [2021-11-19 14:37:42,113 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 539 GetRequests, 531 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2021-11-19 14:37:42,114 INFO L933 BasicCegarLoop]: 3200 mSDtfsCounter, 2928 mSDsluCounter, 6539 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2930 SdHoareTripleChecker+Valid, 9739 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 14:37:42,114 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2930 Valid, 9739 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 14:37:42,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2350 states. [2021-11-19 14:37:42,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2350 to 2348. [2021-11-19 14:37:42,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2348 states, 1618 states have (on average 1.2676143386897405) internal successors, (2051), 1673 states have internal predecessors, (2051), 601 states have call successors, (601), 124 states have call predecessors, (601), 124 states have return successors, (601), 584 states have call predecessors, (601), 601 states have call successors, (601) [2021-11-19 14:37:42,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2348 states to 2348 states and 3253 transitions. [2021-11-19 14:37:42,352 INFO L78 Accepts]: Start accepts. Automaton has 2348 states and 3253 transitions. Word has length 269 [2021-11-19 14:37:42,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:37:42,353 INFO L470 AbstractCegarLoop]: Abstraction has 2348 states and 3253 transitions. [2021-11-19 14:37:42,353 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 19.571428571428573) internal successors, (137), 5 states have internal predecessors, (137), 2 states have call successors, (70), 4 states have call predecessors, (70), 2 states have return successors, (66), 2 states have call predecessors, (66), 2 states have call successors, (66) [2021-11-19 14:37:42,353 INFO L276 IsEmpty]: Start isEmpty. Operand 2348 states and 3253 transitions. [2021-11-19 14:37:42,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 277 [2021-11-19 14:37:42,356 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:37:42,356 INFO L514 BasicCegarLoop]: trace histogram [15, 15, 15, 7, 7, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:37:42,403 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (41)] Forceful destruction successful, exit code 0 [2021-11-19 14:37:42,556 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 41 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:37:42,557 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-19 14:37:42,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:37:42,557 INFO L85 PathProgramCache]: Analyzing trace with hash 1272540582, now seen corresponding path program 1 times [2021-11-19 14:37:42,559 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:37:42,559 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1214092099] [2021-11-19 14:37:42,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:37:42,559 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:37:42,560 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:37:42,560 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:37:42,562 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (42)] Waiting until timeout for monitored process [2021-11-19 14:37:44,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:37:45,001 INFO L263 TraceCheckSpWp]: Trace formula consists of 2233 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-19 14:37:45,007 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:37:45,652 INFO L134 CoverageAnalysis]: Checked inductivity of 564 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 564 trivial. 0 not checked. [2021-11-19 14:37:45,652 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:37:46,264 INFO L134 CoverageAnalysis]: Checked inductivity of 564 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 564 trivial. 0 not checked. [2021-11-19 14:37:46,264 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:37:46,264 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1214092099] [2021-11-19 14:37:46,264 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1214092099] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:37:46,264 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:37:46,265 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 7 [2021-11-19 14:37:46,265 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1903693228] [2021-11-19 14:37:46,265 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:37:46,265 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-19 14:37:46,266 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:37:46,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-19 14:37:46,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-19 14:37:46,266 INFO L87 Difference]: Start difference. First operand 2348 states and 3253 transitions. Second operand has 7 states, 7 states have (on average 16.285714285714285) internal successors, (114), 5 states have internal predecessors, (114), 2 states have call successors, (38), 4 states have call predecessors, (38), 2 states have return successors, (33), 2 states have call predecessors, (33), 1 states have call successors, (33) [2021-11-19 14:37:48,467 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.20s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:37:48,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:37:48,867 INFO L93 Difference]: Finished difference Result 2348 states and 3253 transitions. [2021-11-19 14:37:48,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-19 14:37:48,868 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.285714285714285) internal successors, (114), 5 states have internal predecessors, (114), 2 states have call successors, (38), 4 states have call predecessors, (38), 2 states have return successors, (33), 2 states have call predecessors, (33), 1 states have call successors, (33) Word has length 276 [2021-11-19 14:37:48,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:37:48,875 INFO L225 Difference]: With dead ends: 2348 [2021-11-19 14:37:48,876 INFO L226 Difference]: Without dead ends: 2346 [2021-11-19 14:37:48,877 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 552 GetRequests, 545 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2021-11-19 14:37:48,878 INFO L933 BasicCegarLoop]: 3165 mSDtfsCounter, 59 mSDsluCounter, 9429 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 12594 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2021-11-19 14:37:48,878 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [60 Valid, 12594 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 1 Unknown, 0 Unchecked, 2.2s Time] [2021-11-19 14:37:48,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2346 states. [2021-11-19 14:37:49,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2346 to 2346. [2021-11-19 14:37:49,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2346 states, 1617 states have (on average 1.2671614100185529) internal successors, (2049), 1671 states have internal predecessors, (2049), 601 states have call successors, (601), 124 states have call predecessors, (601), 124 states have return successors, (601), 584 states have call predecessors, (601), 601 states have call successors, (601) [2021-11-19 14:37:49,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2346 states to 2346 states and 3251 transitions. [2021-11-19 14:37:49,160 INFO L78 Accepts]: Start accepts. Automaton has 2346 states and 3251 transitions. Word has length 276 [2021-11-19 14:37:49,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:37:49,160 INFO L470 AbstractCegarLoop]: Abstraction has 2346 states and 3251 transitions. [2021-11-19 14:37:49,160 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.285714285714285) internal successors, (114), 5 states have internal predecessors, (114), 2 states have call successors, (38), 4 states have call predecessors, (38), 2 states have return successors, (33), 2 states have call predecessors, (33), 1 states have call successors, (33) [2021-11-19 14:37:49,160 INFO L276 IsEmpty]: Start isEmpty. Operand 2346 states and 3251 transitions. [2021-11-19 14:37:49,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 309 [2021-11-19 14:37:49,163 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:37:49,164 INFO L514 BasicCegarLoop]: trace histogram [16, 16, 16, 10, 10, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:37:49,203 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (42)] Forceful destruction successful, exit code 0 [2021-11-19 14:37:49,364 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 42 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:37:49,364 INFO L402 AbstractCegarLoop]: === Iteration 40 === Targeting ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-19 14:37:49,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:37:49,365 INFO L85 PathProgramCache]: Analyzing trace with hash -76970230, now seen corresponding path program 1 times [2021-11-19 14:37:49,367 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:37:49,367 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [282685580] [2021-11-19 14:37:49,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:37:49,367 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:37:49,367 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:37:49,368 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:37:49,369 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (43)] Waiting until timeout for monitored process [2021-11-19 14:37:51,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:37:51,435 INFO L263 TraceCheckSpWp]: Trace formula consists of 2198 conjuncts, 15 conjunts are in the unsatisfiable core [2021-11-19 14:37:51,439 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:37:52,192 INFO L134 CoverageAnalysis]: Checked inductivity of 758 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 753 trivial. 0 not checked. [2021-11-19 14:37:52,192 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:37:53,615 INFO L134 CoverageAnalysis]: Checked inductivity of 758 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 756 trivial. 0 not checked. [2021-11-19 14:37:53,615 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:37:53,616 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [282685580] [2021-11-19 14:37:53,616 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [282685580] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:37:53,616 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:37:53,616 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [] total 14 [2021-11-19 14:37:53,616 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1991624126] [2021-11-19 14:37:53,616 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:37:53,617 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-11-19 14:37:53,617 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:37:53,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-11-19 14:37:53,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2021-11-19 14:37:53,618 INFO L87 Difference]: Start difference. First operand 2346 states and 3251 transitions. Second operand has 14 states, 14 states have (on average 8.428571428571429) internal successors, (118), 10 states have internal predecessors, (118), 4 states have call successors, (41), 2 states have call predecessors, (41), 6 states have return successors, (41), 8 states have call predecessors, (41), 4 states have call successors, (41) [2021-11-19 14:37:54,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:37:54,591 INFO L93 Difference]: Finished difference Result 4317 states and 6006 transitions. [2021-11-19 14:37:54,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-19 14:37:54,592 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 8.428571428571429) internal successors, (118), 10 states have internal predecessors, (118), 4 states have call successors, (41), 2 states have call predecessors, (41), 6 states have return successors, (41), 8 states have call predecessors, (41), 4 states have call successors, (41) Word has length 308 [2021-11-19 14:37:54,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:37:54,600 INFO L225 Difference]: With dead ends: 4317 [2021-11-19 14:37:54,601 INFO L226 Difference]: Without dead ends: 2367 [2021-11-19 14:37:54,606 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 615 GetRequests, 602 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=37, Invalid=173, Unknown=0, NotChecked=0, Total=210 [2021-11-19 14:37:54,607 INFO L933 BasicCegarLoop]: 3168 mSDtfsCounter, 13 mSDsluCounter, 25329 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 28497 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-19 14:37:54,607 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [17 Valid, 28497 Invalid, 49 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-19 14:37:54,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2367 states. [2021-11-19 14:37:54,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2367 to 2355. [2021-11-19 14:37:54,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2355 states, 1623 states have (on average 1.266173752310536) internal successors, (2055), 1677 states have internal predecessors, (2055), 602 states have call successors, (602), 124 states have call predecessors, (602), 126 states have return successors, (626), 587 states have call predecessors, (626), 602 states have call successors, (626) [2021-11-19 14:37:54,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2355 states to 2355 states and 3283 transitions. [2021-11-19 14:37:54,884 INFO L78 Accepts]: Start accepts. Automaton has 2355 states and 3283 transitions. Word has length 308 [2021-11-19 14:37:54,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:37:54,884 INFO L470 AbstractCegarLoop]: Abstraction has 2355 states and 3283 transitions. [2021-11-19 14:37:54,885 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 8.428571428571429) internal successors, (118), 10 states have internal predecessors, (118), 4 states have call successors, (41), 2 states have call predecessors, (41), 6 states have return successors, (41), 8 states have call predecessors, (41), 4 states have call successors, (41) [2021-11-19 14:37:54,885 INFO L276 IsEmpty]: Start isEmpty. Operand 2355 states and 3283 transitions. [2021-11-19 14:37:54,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 325 [2021-11-19 14:37:54,888 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:37:54,889 INFO L514 BasicCegarLoop]: trace histogram [18, 18, 18, 10, 10, 7, 7, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:37:54,926 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (43)] Forceful destruction successful, exit code 0 [2021-11-19 14:37:55,089 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 43 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:37:55,089 INFO L402 AbstractCegarLoop]: === Iteration 41 === Targeting ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-19 14:37:55,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:37:55,090 INFO L85 PathProgramCache]: Analyzing trace with hash -1436908978, now seen corresponding path program 1 times [2021-11-19 14:37:55,091 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:37:55,091 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1021564705] [2021-11-19 14:37:55,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:37:55,092 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:37:55,092 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:37:55,092 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:37:55,094 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (44)] Waiting until timeout for monitored process [2021-11-19 14:37:57,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:37:57,209 INFO L263 TraceCheckSpWp]: Trace formula consists of 2230 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-19 14:37:57,214 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:37:59,194 INFO L134 CoverageAnalysis]: Checked inductivity of 913 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 911 trivial. 0 not checked. [2021-11-19 14:37:59,195 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:38:00,331 INFO L134 CoverageAnalysis]: Checked inductivity of 913 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 911 trivial. 0 not checked. [2021-11-19 14:38:00,331 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:38:00,331 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1021564705] [2021-11-19 14:38:00,331 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1021564705] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:38:00,332 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:38:00,332 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 6] imperfect sequences [] total 7 [2021-11-19 14:38:00,332 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [314366485] [2021-11-19 14:38:00,332 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:38:00,333 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-19 14:38:00,333 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:38:00,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-19 14:38:00,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-19 14:38:00,334 INFO L87 Difference]: Start difference. First operand 2355 states and 3283 transitions. Second operand has 7 states, 7 states have (on average 22.142857142857142) internal successors, (155), 6 states have internal predecessors, (155), 2 states have call successors, (76), 2 states have call predecessors, (76), 4 states have return successors, (74), 3 states have call predecessors, (74), 2 states have call successors, (74) [2021-11-19 14:38:02,529 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.19s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:38:11,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:38:11,844 INFO L93 Difference]: Finished difference Result 4310 states and 6021 transitions. [2021-11-19 14:38:11,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-19 14:38:11,844 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 22.142857142857142) internal successors, (155), 6 states have internal predecessors, (155), 2 states have call successors, (76), 2 states have call predecessors, (76), 4 states have return successors, (74), 3 states have call predecessors, (74), 2 states have call successors, (74) Word has length 324 [2021-11-19 14:38:11,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:38:11,851 INFO L225 Difference]: With dead ends: 4310 [2021-11-19 14:38:11,851 INFO L226 Difference]: Without dead ends: 2351 [2021-11-19 14:38:11,856 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 648 GetRequests, 640 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-11-19 14:38:11,857 INFO L933 BasicCegarLoop]: 3157 mSDtfsCounter, 2983 mSDsluCounter, 10262 mSDsCounter, 0 mSdLazyCounter, 2365 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2989 SdHoareTripleChecker+Valid, 13419 SdHoareTripleChecker+Invalid, 2367 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2365 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.9s IncrementalHoareTripleChecker+Time [2021-11-19 14:38:11,858 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2989 Valid, 13419 Invalid, 2367 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2365 Invalid, 1 Unknown, 0 Unchecked, 10.9s Time] [2021-11-19 14:38:11,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2351 states. [2021-11-19 14:38:12,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2351 to 2351. [2021-11-19 14:38:12,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2351 states, 1620 states have (on average 1.2654320987654322) internal successors, (2050), 1673 states have internal predecessors, (2050), 602 states have call successors, (602), 124 states have call predecessors, (602), 126 states have return successors, (626), 587 states have call predecessors, (626), 602 states have call successors, (626) [2021-11-19 14:38:12,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2351 states to 2351 states and 3278 transitions. [2021-11-19 14:38:12,099 INFO L78 Accepts]: Start accepts. Automaton has 2351 states and 3278 transitions. Word has length 324 [2021-11-19 14:38:12,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:38:12,100 INFO L470 AbstractCegarLoop]: Abstraction has 2351 states and 3278 transitions. [2021-11-19 14:38:12,100 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 22.142857142857142) internal successors, (155), 6 states have internal predecessors, (155), 2 states have call successors, (76), 2 states have call predecessors, (76), 4 states have return successors, (74), 3 states have call predecessors, (74), 2 states have call successors, (74) [2021-11-19 14:38:12,100 INFO L276 IsEmpty]: Start isEmpty. Operand 2351 states and 3278 transitions. [2021-11-19 14:38:12,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 326 [2021-11-19 14:38:12,103 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:38:12,104 INFO L514 BasicCegarLoop]: trace histogram [18, 18, 18, 10, 10, 7, 7, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:38:12,144 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (44)] Forceful destruction successful, exit code 0 [2021-11-19 14:38:12,304 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 44 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:38:12,304 INFO L402 AbstractCegarLoop]: === Iteration 42 === Targeting ldv_check_alloc_nonatomicErr1ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-19 14:38:12,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:38:12,305 INFO L85 PathProgramCache]: Analyzing trace with hash -1594135264, now seen corresponding path program 1 times [2021-11-19 14:38:12,307 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:38:12,307 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1130501064] [2021-11-19 14:38:12,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:38:12,307 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:38:12,307 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:38:12,308 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:38:12,309 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (45)] Waiting until timeout for monitored process [2021-11-19 14:38:14,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:38:14,391 INFO L263 TraceCheckSpWp]: Trace formula consists of 2230 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 14:38:14,395 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:38:16,507 INFO L134 CoverageAnalysis]: Checked inductivity of 913 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 913 trivial. 0 not checked. [2021-11-19 14:38:16,507 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:38:17,621 INFO L134 CoverageAnalysis]: Checked inductivity of 913 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 913 trivial. 0 not checked. [2021-11-19 14:38:17,621 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:38:17,621 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1130501064] [2021-11-19 14:38:17,622 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1130501064] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:38:17,622 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:38:17,622 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-19 14:38:17,623 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1391510642] [2021-11-19 14:38:17,623 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:38:17,623 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 14:38:17,624 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:38:17,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 14:38:17,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-19 14:38:17,624 INFO L87 Difference]: Start difference. First operand 2351 states and 3278 transitions. Second operand has 5 states, 5 states have (on average 30.8) internal successors, (154), 5 states have internal predecessors, (154), 2 states have call successors, (76), 2 states have call predecessors, (76), 2 states have return successors, (74), 2 states have call predecessors, (74), 2 states have call successors, (74) [2021-11-19 14:38:17,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:38:17,905 INFO L93 Difference]: Finished difference Result 2351 states and 3278 transitions. [2021-11-19 14:38:17,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:38:17,906 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.8) internal successors, (154), 5 states have internal predecessors, (154), 2 states have call successors, (76), 2 states have call predecessors, (76), 2 states have return successors, (74), 2 states have call predecessors, (74), 2 states have call successors, (74) Word has length 325 [2021-11-19 14:38:17,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:38:17,911 INFO L225 Difference]: With dead ends: 2351 [2021-11-19 14:38:17,911 INFO L226 Difference]: Without dead ends: 2349 [2021-11-19 14:38:17,913 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 649 GetRequests, 645 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-19 14:38:17,913 INFO L933 BasicCegarLoop]: 3155 mSDtfsCounter, 2980 mSDsluCounter, 3152 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2985 SdHoareTripleChecker+Valid, 6307 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 14:38:17,913 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2985 Valid, 6307 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 14:38:17,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2349 states. [2021-11-19 14:38:18,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2349 to 2349. [2021-11-19 14:38:18,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2349 states, 1619 states have (on average 1.2649783817171094) internal successors, (2048), 1671 states have internal predecessors, (2048), 602 states have call successors, (602), 124 states have call predecessors, (602), 126 states have return successors, (626), 587 states have call predecessors, (626), 602 states have call successors, (626) [2021-11-19 14:38:18,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2349 states to 2349 states and 3276 transitions. [2021-11-19 14:38:18,199 INFO L78 Accepts]: Start accepts. Automaton has 2349 states and 3276 transitions. Word has length 325 [2021-11-19 14:38:18,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:38:18,199 INFO L470 AbstractCegarLoop]: Abstraction has 2349 states and 3276 transitions. [2021-11-19 14:38:18,199 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.8) internal successors, (154), 5 states have internal predecessors, (154), 2 states have call successors, (76), 2 states have call predecessors, (76), 2 states have return successors, (74), 2 states have call predecessors, (74), 2 states have call successors, (74) [2021-11-19 14:38:18,200 INFO L276 IsEmpty]: Start isEmpty. Operand 2349 states and 3276 transitions. [2021-11-19 14:38:18,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 290 [2021-11-19 14:38:18,203 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:38:18,203 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 14, 7, 7, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:38:18,246 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (45)] Forceful destruction successful, exit code 0 [2021-11-19 14:38:18,404 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 45 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:38:18,404 INFO L402 AbstractCegarLoop]: === Iteration 43 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-19 14:38:18,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:38:18,405 INFO L85 PathProgramCache]: Analyzing trace with hash -370398581, now seen corresponding path program 1 times [2021-11-19 14:38:18,406 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:38:18,407 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [334175795] [2021-11-19 14:38:18,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:38:18,407 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:38:18,407 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:38:18,408 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:38:18,414 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (46)] Waiting until timeout for monitored process [2021-11-19 14:38:21,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:38:21,241 INFO L263 TraceCheckSpWp]: Trace formula consists of 2331 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-19 14:38:21,245 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:38:21,764 INFO L134 CoverageAnalysis]: Checked inductivity of 526 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 524 trivial. 0 not checked. [2021-11-19 14:38:21,764 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:38:22,602 INFO L134 CoverageAnalysis]: Checked inductivity of 526 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 524 trivial. 0 not checked. [2021-11-19 14:38:22,602 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:38:22,602 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [334175795] [2021-11-19 14:38:22,603 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [334175795] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:38:22,603 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:38:22,603 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 8 [2021-11-19 14:38:22,603 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1949510846] [2021-11-19 14:38:22,603 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:38:22,604 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-19 14:38:22,604 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:38:22,605 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-19 14:38:22,605 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-11-19 14:38:22,605 INFO L87 Difference]: Start difference. First operand 2349 states and 3276 transitions. Second operand has 8 states, 6 states have (on average 20.0) internal successors, (120), 7 states have internal predecessors, (120), 4 states have call successors, (40), 2 states have call predecessors, (40), 3 states have return successors, (37), 2 states have call predecessors, (37), 3 states have call successors, (37) [2021-11-19 14:38:23,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:38:23,494 INFO L93 Difference]: Finished difference Result 4521 states and 6331 transitions. [2021-11-19 14:38:23,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-19 14:38:23,495 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 20.0) internal successors, (120), 7 states have internal predecessors, (120), 4 states have call successors, (40), 2 states have call predecessors, (40), 3 states have return successors, (37), 2 states have call predecessors, (37), 3 states have call successors, (37) Word has length 289 [2021-11-19 14:38:23,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:38:23,502 INFO L225 Difference]: With dead ends: 4521 [2021-11-19 14:38:23,502 INFO L226 Difference]: Without dead ends: 2403 [2021-11-19 14:38:23,508 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 577 GetRequests, 570 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2021-11-19 14:38:23,508 INFO L933 BasicCegarLoop]: 3203 mSDtfsCounter, 140 mSDsluCounter, 15808 mSDsCounter, 0 mSdLazyCounter, 180 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 170 SdHoareTripleChecker+Valid, 19011 SdHoareTripleChecker+Invalid, 252 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 180 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 72 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-11-19 14:38:23,509 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [170 Valid, 19011 Invalid, 252 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 180 Invalid, 0 Unknown, 72 Unchecked, 0.5s Time] [2021-11-19 14:38:23,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2403 states. [2021-11-19 14:38:23,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2403 to 2349. [2021-11-19 14:38:23,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2349 states, 1619 states have (on average 1.2643607164916615) internal successors, (2047), 1671 states have internal predecessors, (2047), 602 states have call successors, (602), 124 states have call predecessors, (602), 126 states have return successors, (626), 587 states have call predecessors, (626), 602 states have call successors, (626) [2021-11-19 14:38:23,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2349 states to 2349 states and 3275 transitions. [2021-11-19 14:38:23,785 INFO L78 Accepts]: Start accepts. Automaton has 2349 states and 3275 transitions. Word has length 289 [2021-11-19 14:38:23,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:38:23,786 INFO L470 AbstractCegarLoop]: Abstraction has 2349 states and 3275 transitions. [2021-11-19 14:38:23,786 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 20.0) internal successors, (120), 7 states have internal predecessors, (120), 4 states have call successors, (40), 2 states have call predecessors, (40), 3 states have return successors, (37), 2 states have call predecessors, (37), 3 states have call successors, (37) [2021-11-19 14:38:23,786 INFO L276 IsEmpty]: Start isEmpty. Operand 2349 states and 3275 transitions. [2021-11-19 14:38:23,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 290 [2021-11-19 14:38:23,791 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:38:23,791 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 14, 7, 7, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:38:23,839 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (46)] Forceful destruction successful, exit code 0 [2021-11-19 14:38:23,992 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 46 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:38:23,992 INFO L402 AbstractCegarLoop]: === Iteration 44 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-19 14:38:23,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:38:23,993 INFO L85 PathProgramCache]: Analyzing trace with hash -763425591, now seen corresponding path program 1 times [2021-11-19 14:38:23,995 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:38:23,995 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1333115926] [2021-11-19 14:38:23,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:38:23,995 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:38:23,995 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:38:23,996 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:38:23,997 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (47)] Waiting until timeout for monitored process [2021-11-19 14:38:26,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:38:26,901 INFO L263 TraceCheckSpWp]: Trace formula consists of 2331 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-19 14:38:26,905 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:38:27,473 INFO L134 CoverageAnalysis]: Checked inductivity of 526 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 523 trivial. 0 not checked. [2021-11-19 14:38:27,474 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:38:28,189 INFO L134 CoverageAnalysis]: Checked inductivity of 526 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 526 trivial. 0 not checked. [2021-11-19 14:38:28,190 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:38:28,190 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1333115926] [2021-11-19 14:38:28,190 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1333115926] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:38:28,190 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:38:28,190 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-11-19 14:38:28,190 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1715882381] [2021-11-19 14:38:28,190 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:38:28,191 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-19 14:38:28,191 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:38:28,191 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-19 14:38:28,191 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-19 14:38:28,191 INFO L87 Difference]: Start difference. First operand 2349 states and 3275 transitions. Second operand has 8 states, 8 states have (on average 16.0) internal successors, (128), 6 states have internal predecessors, (128), 3 states have call successors, (42), 5 states have call predecessors, (42), 3 states have return successors, (38), 3 states have call predecessors, (38), 3 states have call successors, (38) [2021-11-19 14:38:30,398 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.20s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:38:30,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:38:30,928 INFO L93 Difference]: Finished difference Result 2351 states and 3276 transitions. [2021-11-19 14:38:30,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-19 14:38:30,929 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 16.0) internal successors, (128), 6 states have internal predecessors, (128), 3 states have call successors, (42), 5 states have call predecessors, (42), 3 states have return successors, (38), 3 states have call predecessors, (38), 3 states have call successors, (38) Word has length 289 [2021-11-19 14:38:30,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:38:30,934 INFO L225 Difference]: With dead ends: 2351 [2021-11-19 14:38:30,934 INFO L226 Difference]: Without dead ends: 2349 [2021-11-19 14:38:30,936 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 578 GetRequests, 570 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2021-11-19 14:38:30,936 INFO L933 BasicCegarLoop]: 3187 mSDtfsCounter, 221 mSDsluCounter, 15817 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 36 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 222 SdHoareTripleChecker+Valid, 19004 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2021-11-19 14:38:30,936 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [222 Valid, 19004 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 17 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2021-11-19 14:38:30,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2349 states. [2021-11-19 14:38:31,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2349 to 2349. [2021-11-19 14:38:31,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2349 states, 1619 states have (on average 1.2637430512662138) internal successors, (2046), 1671 states have internal predecessors, (2046), 602 states have call successors, (602), 124 states have call predecessors, (602), 126 states have return successors, (626), 587 states have call predecessors, (626), 602 states have call successors, (626) [2021-11-19 14:38:31,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2349 states to 2349 states and 3274 transitions. [2021-11-19 14:38:31,192 INFO L78 Accepts]: Start accepts. Automaton has 2349 states and 3274 transitions. Word has length 289 [2021-11-19 14:38:31,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:38:31,192 INFO L470 AbstractCegarLoop]: Abstraction has 2349 states and 3274 transitions. [2021-11-19 14:38:31,192 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 16.0) internal successors, (128), 6 states have internal predecessors, (128), 3 states have call successors, (42), 5 states have call predecessors, (42), 3 states have return successors, (38), 3 states have call predecessors, (38), 3 states have call successors, (38) [2021-11-19 14:38:31,193 INFO L276 IsEmpty]: Start isEmpty. Operand 2349 states and 3274 transitions. [2021-11-19 14:38:31,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 362 [2021-11-19 14:38:31,199 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:38:31,200 INFO L514 BasicCegarLoop]: trace histogram [16, 16, 16, 8, 8, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:38:31,246 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (47)] Ended with exit code 0 [2021-11-19 14:38:31,400 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 47 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:38:31,401 INFO L402 AbstractCegarLoop]: === Iteration 45 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-19 14:38:31,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:38:31,401 INFO L85 PathProgramCache]: Analyzing trace with hash 1018722281, now seen corresponding path program 1 times [2021-11-19 14:38:31,403 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:38:31,403 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1381413738] [2021-11-19 14:38:31,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:38:31,404 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:38:31,404 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:38:31,405 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:38:31,407 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (48)] Waiting until timeout for monitored process [2021-11-19 14:38:34,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:38:34,402 INFO L263 TraceCheckSpWp]: Trace formula consists of 2509 conjuncts, 15 conjunts are in the unsatisfiable core [2021-11-19 14:38:34,406 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:38:35,308 INFO L134 CoverageAnalysis]: Checked inductivity of 648 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 645 trivial. 0 not checked. [2021-11-19 14:38:35,308 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:38:36,784 INFO L134 CoverageAnalysis]: Checked inductivity of 648 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 648 trivial. 0 not checked. [2021-11-19 14:38:36,784 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:38:36,784 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1381413738] [2021-11-19 14:38:36,784 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1381413738] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:38:36,784 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:38:36,785 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [] total 14 [2021-11-19 14:38:36,785 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1329128145] [2021-11-19 14:38:36,785 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:38:36,786 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-11-19 14:38:36,786 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:38:36,786 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-11-19 14:38:36,786 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2021-11-19 14:38:36,786 INFO L87 Difference]: Start difference. First operand 2349 states and 3274 transitions. Second operand has 14 states, 14 states have (on average 12.714285714285714) internal successors, (178), 10 states have internal predecessors, (178), 4 states have call successors, (52), 2 states have call predecessors, (52), 6 states have return successors, (49), 8 states have call predecessors, (49), 4 states have call successors, (49) [2021-11-19 14:38:38,062 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:38:38,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:38:38,694 INFO L93 Difference]: Finished difference Result 4487 states and 6335 transitions. [2021-11-19 14:38:38,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-19 14:38:38,696 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 12.714285714285714) internal successors, (178), 10 states have internal predecessors, (178), 4 states have call successors, (52), 2 states have call predecessors, (52), 6 states have return successors, (49), 8 states have call predecessors, (49), 4 states have call successors, (49) Word has length 361 [2021-11-19 14:38:38,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:38:38,707 INFO L225 Difference]: With dead ends: 4487 [2021-11-19 14:38:38,707 INFO L226 Difference]: Without dead ends: 2369 [2021-11-19 14:38:38,716 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 721 GetRequests, 708 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=37, Invalid=173, Unknown=0, NotChecked=0, Total=210 [2021-11-19 14:38:38,717 INFO L933 BasicCegarLoop]: 3154 mSDtfsCounter, 9 mSDsluCounter, 28370 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 31524 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2021-11-19 14:38:38,717 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9 Valid, 31524 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2021-11-19 14:38:38,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2369 states. [2021-11-19 14:38:38,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2369 to 2358. [2021-11-19 14:38:38,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2358 states, 1625 states have (on average 1.2627692307692309) internal successors, (2052), 1677 states have internal predecessors, (2052), 603 states have call successors, (603), 124 states have call predecessors, (603), 128 states have return successors, (630), 590 states have call predecessors, (630), 603 states have call successors, (630) [2021-11-19 14:38:39,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2358 states to 2358 states and 3285 transitions. [2021-11-19 14:38:39,006 INFO L78 Accepts]: Start accepts. Automaton has 2358 states and 3285 transitions. Word has length 361 [2021-11-19 14:38:39,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:38:39,007 INFO L470 AbstractCegarLoop]: Abstraction has 2358 states and 3285 transitions. [2021-11-19 14:38:39,007 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 12.714285714285714) internal successors, (178), 10 states have internal predecessors, (178), 4 states have call successors, (52), 2 states have call predecessors, (52), 6 states have return successors, (49), 8 states have call predecessors, (49), 4 states have call successors, (49) [2021-11-19 14:38:39,007 INFO L276 IsEmpty]: Start isEmpty. Operand 2358 states and 3285 transitions. [2021-11-19 14:38:39,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 383 [2021-11-19 14:38:39,015 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:38:39,016 INFO L514 BasicCegarLoop]: trace histogram [18, 18, 18, 8, 8, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:38:39,070 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (48)] Forceful destruction successful, exit code 0 [2021-11-19 14:38:39,230 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 48 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:38:39,230 INFO L402 AbstractCegarLoop]: === Iteration 46 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-19 14:38:39,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:38:39,231 INFO L85 PathProgramCache]: Analyzing trace with hash 1374679139, now seen corresponding path program 1 times [2021-11-19 14:38:39,233 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:38:39,233 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1353372057] [2021-11-19 14:38:39,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:38:39,234 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:38:39,234 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:38:39,235 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:38:39,243 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (49)] Waiting until timeout for monitored process [2021-11-19 14:38:42,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:38:42,380 INFO L263 TraceCheckSpWp]: Trace formula consists of 2553 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-19 14:38:42,385 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:38:42,991 INFO L134 CoverageAnalysis]: Checked inductivity of 795 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 795 trivial. 0 not checked. [2021-11-19 14:38:42,992 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:38:43,774 INFO L134 CoverageAnalysis]: Checked inductivity of 795 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 795 trivial. 0 not checked. [2021-11-19 14:38:43,774 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:38:43,774 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1353372057] [2021-11-19 14:38:43,774 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1353372057] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:38:43,775 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:38:43,775 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-19 14:38:43,775 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1496062635] [2021-11-19 14:38:43,775 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:38:43,776 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 14:38:43,776 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:38:43,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 14:38:43,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-19 14:38:43,777 INFO L87 Difference]: Start difference. First operand 2358 states and 3285 transitions. Second operand has 4 states, 4 states have (on average 43.5) internal successors, (174), 4 states have internal predecessors, (174), 2 states have call successors, (54), 2 states have call predecessors, (54), 2 states have return successors, (49), 2 states have call predecessors, (49), 2 states have call successors, (49) [2021-11-19 14:38:44,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:38:44,377 INFO L93 Difference]: Finished difference Result 4489 states and 6340 transitions. [2021-11-19 14:38:44,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-19 14:38:44,377 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 43.5) internal successors, (174), 4 states have internal predecessors, (174), 2 states have call successors, (54), 2 states have call predecessors, (54), 2 states have return successors, (49), 2 states have call predecessors, (49), 2 states have call successors, (49) Word has length 382 [2021-11-19 14:38:44,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:38:44,383 INFO L225 Difference]: With dead ends: 4489 [2021-11-19 14:38:44,384 INFO L226 Difference]: Without dead ends: 2362 [2021-11-19 14:38:44,391 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 763 GetRequests, 760 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-19 14:38:44,392 INFO L933 BasicCegarLoop]: 3154 mSDtfsCounter, 2 mSDsluCounter, 6303 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 9457 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-19 14:38:44,392 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 9457 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-19 14:38:44,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2362 states. [2021-11-19 14:38:44,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2362 to 2361. [2021-11-19 14:38:44,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2361 states, 1628 states have (on average 1.2622850122850122) internal successors, (2055), 1680 states have internal predecessors, (2055), 603 states have call successors, (603), 124 states have call predecessors, (603), 128 states have return successors, (630), 590 states have call predecessors, (630), 603 states have call successors, (630) [2021-11-19 14:38:44,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2361 states to 2361 states and 3288 transitions. [2021-11-19 14:38:44,789 INFO L78 Accepts]: Start accepts. Automaton has 2361 states and 3288 transitions. Word has length 382 [2021-11-19 14:38:44,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:38:44,790 INFO L470 AbstractCegarLoop]: Abstraction has 2361 states and 3288 transitions. [2021-11-19 14:38:44,790 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 43.5) internal successors, (174), 4 states have internal predecessors, (174), 2 states have call successors, (54), 2 states have call predecessors, (54), 2 states have return successors, (49), 2 states have call predecessors, (49), 2 states have call successors, (49) [2021-11-19 14:38:44,790 INFO L276 IsEmpty]: Start isEmpty. Operand 2361 states and 3288 transitions. [2021-11-19 14:38:44,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 390 [2021-11-19 14:38:44,798 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:38:44,798 INFO L514 BasicCegarLoop]: trace histogram [18, 18, 18, 8, 8, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:38:44,850 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (49)] Forceful destruction successful, exit code 0 [2021-11-19 14:38:44,999 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 49 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:38:44,999 INFO L402 AbstractCegarLoop]: === Iteration 47 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-19 14:38:44,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:38:44,999 INFO L85 PathProgramCache]: Analyzing trace with hash -1464958557, now seen corresponding path program 1 times [2021-11-19 14:38:45,001 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:38:45,001 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1999452475] [2021-11-19 14:38:45,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:38:45,002 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:38:45,002 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:38:45,002 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:38:45,004 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (50)] Waiting until timeout for monitored process [2021-11-19 14:38:47,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:38:47,935 INFO L263 TraceCheckSpWp]: Trace formula consists of 2620 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-19 14:38:47,940 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:38:48,868 INFO L134 CoverageAnalysis]: Checked inductivity of 801 backedges. 268 proven. 0 refuted. 0 times theorem prover too weak. 533 trivial. 0 not checked. [2021-11-19 14:38:48,868 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:38:49,922 INFO L134 CoverageAnalysis]: Checked inductivity of 801 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 797 trivial. 0 not checked. [2021-11-19 14:38:49,922 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:38:49,922 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1999452475] [2021-11-19 14:38:49,922 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1999452475] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-19 14:38:49,922 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-19 14:38:49,923 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 8 [2021-11-19 14:38:49,923 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [280359390] [2021-11-19 14:38:49,923 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 14:38:49,923 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-19 14:38:49,923 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:38:49,924 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-19 14:38:49,924 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-11-19 14:38:49,924 INFO L87 Difference]: Start difference. First operand 2361 states and 3288 transitions. Second operand has 6 states, 5 states have (on average 37.0) internal successors, (185), 5 states have internal predecessors, (185), 3 states have call successors, (55), 2 states have call predecessors, (55), 3 states have return successors, (49), 3 states have call predecessors, (49), 3 states have call successors, (49) [2021-11-19 14:38:51,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:38:51,007 INFO L93 Difference]: Finished difference Result 4491 states and 6334 transitions. [2021-11-19 14:38:51,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-19 14:38:51,007 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 37.0) internal successors, (185), 5 states have internal predecessors, (185), 3 states have call successors, (55), 2 states have call predecessors, (55), 3 states have return successors, (49), 3 states have call predecessors, (49), 3 states have call successors, (49) Word has length 389 [2021-11-19 14:38:51,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:38:51,015 INFO L225 Difference]: With dead ends: 4491 [2021-11-19 14:38:51,015 INFO L226 Difference]: Without dead ends: 2361 [2021-11-19 14:38:51,021 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 777 GetRequests, 770 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2021-11-19 14:38:51,021 INFO L933 BasicCegarLoop]: 3120 mSDtfsCounter, 17 mSDsluCounter, 12422 mSDsCounter, 0 mSdLazyCounter, 211 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 15542 SdHoareTripleChecker+Invalid, 211 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 211 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-11-19 14:38:51,022 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [22 Valid, 15542 Invalid, 211 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 211 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-11-19 14:38:51,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2361 states. [2021-11-19 14:38:51,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2361 to 2361. [2021-11-19 14:38:51,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2361 states, 1628 states have (on average 1.2616707616707616) internal successors, (2054), 1680 states have internal predecessors, (2054), 603 states have call successors, (603), 124 states have call predecessors, (603), 128 states have return successors, (630), 590 states have call predecessors, (630), 603 states have call successors, (630) [2021-11-19 14:38:51,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2361 states to 2361 states and 3287 transitions. [2021-11-19 14:38:51,322 INFO L78 Accepts]: Start accepts. Automaton has 2361 states and 3287 transitions. Word has length 389 [2021-11-19 14:38:51,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:38:51,322 INFO L470 AbstractCegarLoop]: Abstraction has 2361 states and 3287 transitions. [2021-11-19 14:38:51,323 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 37.0) internal successors, (185), 5 states have internal predecessors, (185), 3 states have call successors, (55), 2 states have call predecessors, (55), 3 states have return successors, (49), 3 states have call predecessors, (49), 3 states have call successors, (49) [2021-11-19 14:38:51,323 INFO L276 IsEmpty]: Start isEmpty. Operand 2361 states and 3287 transitions. [2021-11-19 14:38:51,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 392 [2021-11-19 14:38:51,331 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:38:51,331 INFO L514 BasicCegarLoop]: trace histogram [18, 18, 18, 8, 8, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:38:51,381 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (50)] Forceful destruction successful, exit code 0 [2021-11-19 14:38:51,534 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 50 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:38:51,534 INFO L402 AbstractCegarLoop]: === Iteration 48 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-19 14:38:51,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:38:51,535 INFO L85 PathProgramCache]: Analyzing trace with hash 324415715, now seen corresponding path program 1 times [2021-11-19 14:38:51,537 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:38:51,537 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2131899391] [2021-11-19 14:38:51,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:38:51,537 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:38:51,537 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:38:51,538 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:38:51,539 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (51)] Waiting until timeout for monitored process [2021-11-19 14:38:54,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:38:54,504 INFO L263 TraceCheckSpWp]: Trace formula consists of 2595 conjuncts, 12 conjunts are in the unsatisfiable core [2021-11-19 14:38:54,509 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:38:57,074 INFO L134 CoverageAnalysis]: Checked inductivity of 804 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 804 trivial. 0 not checked. [2021-11-19 14:38:57,074 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:38:58,446 INFO L134 CoverageAnalysis]: Checked inductivity of 804 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 804 trivial. 0 not checked. [2021-11-19 14:38:58,447 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:38:58,447 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2131899391] [2021-11-19 14:38:58,447 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2131899391] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:38:58,447 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:38:58,448 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 5] imperfect sequences [] total 7 [2021-11-19 14:38:58,448 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1438750399] [2021-11-19 14:38:58,448 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:38:58,449 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-19 14:38:58,449 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:38:58,450 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-19 14:38:58,450 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-19 14:38:58,450 INFO L87 Difference]: Start difference. First operand 2361 states and 3287 transitions. Second operand has 7 states, 7 states have (on average 36.285714285714285) internal successors, (254), 5 states have internal predecessors, (254), 2 states have call successors, (106), 4 states have call predecessors, (106), 2 states have return successors, (100), 2 states have call predecessors, (100), 2 states have call successors, (100) [2021-11-19 14:38:58,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:38:58,831 INFO L93 Difference]: Finished difference Result 2475 states and 3439 transitions. [2021-11-19 14:38:58,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-19 14:38:58,831 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 36.285714285714285) internal successors, (254), 5 states have internal predecessors, (254), 2 states have call successors, (106), 4 states have call predecessors, (106), 2 states have return successors, (100), 2 states have call predecessors, (100), 2 states have call successors, (100) Word has length 391 [2021-11-19 14:38:58,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:38:58,839 INFO L225 Difference]: With dead ends: 2475 [2021-11-19 14:38:58,840 INFO L226 Difference]: Without dead ends: 2473 [2021-11-19 14:38:58,841 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 783 GetRequests, 775 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2021-11-19 14:38:58,842 INFO L933 BasicCegarLoop]: 3211 mSDtfsCounter, 2826 mSDsluCounter, 9836 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2828 SdHoareTripleChecker+Valid, 13047 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 14:38:58,842 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2828 Valid, 13047 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 14:38:58,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2473 states. [2021-11-19 14:38:59,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2473 to 2473. [2021-11-19 14:38:59,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2473 states, 1711 states have (on average 1.2647574517825833) internal successors, (2164), 1763 states have internal predecessors, (2164), 623 states have call successors, (623), 134 states have call predecessors, (623), 138 states have return successors, (650), 610 states have call predecessors, (650), 623 states have call successors, (650) [2021-11-19 14:38:59,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2473 states to 2473 states and 3437 transitions. [2021-11-19 14:38:59,160 INFO L78 Accepts]: Start accepts. Automaton has 2473 states and 3437 transitions. Word has length 391 [2021-11-19 14:38:59,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:38:59,160 INFO L470 AbstractCegarLoop]: Abstraction has 2473 states and 3437 transitions. [2021-11-19 14:38:59,160 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 36.285714285714285) internal successors, (254), 5 states have internal predecessors, (254), 2 states have call successors, (106), 4 states have call predecessors, (106), 2 states have return successors, (100), 2 states have call predecessors, (100), 2 states have call successors, (100) [2021-11-19 14:38:59,160 INFO L276 IsEmpty]: Start isEmpty. Operand 2473 states and 3437 transitions. [2021-11-19 14:38:59,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 401 [2021-11-19 14:38:59,168 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:38:59,168 INFO L514 BasicCegarLoop]: trace histogram [18, 18, 18, 8, 8, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:38:59,221 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (51)] Forceful destruction successful, exit code 0 [2021-11-19 14:38:59,376 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 51 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:38:59,376 INFO L402 AbstractCegarLoop]: === Iteration 49 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-19 14:38:59,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:38:59,377 INFO L85 PathProgramCache]: Analyzing trace with hash 2064396377, now seen corresponding path program 1 times [2021-11-19 14:38:59,379 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:38:59,380 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1473946214] [2021-11-19 14:38:59,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:38:59,380 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:38:59,380 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:38:59,381 INFO L229 MonitoredProcess]: Starting monitored process 52 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:38:59,385 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (52)] Waiting until timeout for monitored process [2021-11-19 14:39:02,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:39:02,616 INFO L263 TraceCheckSpWp]: Trace formula consists of 2674 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 14:39:02,621 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:39:03,263 INFO L134 CoverageAnalysis]: Checked inductivity of 795 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 795 trivial. 0 not checked. [2021-11-19 14:39:03,264 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:39:04,067 INFO L134 CoverageAnalysis]: Checked inductivity of 795 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 795 trivial. 0 not checked. [2021-11-19 14:39:04,067 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:39:04,067 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1473946214] [2021-11-19 14:39:04,067 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1473946214] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:39:04,068 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:39:04,068 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-11-19 14:39:04,068 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1191577189] [2021-11-19 14:39:04,068 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:39:04,069 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-19 14:39:04,069 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:39:04,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-19 14:39:04,070 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-19 14:39:04,070 INFO L87 Difference]: Start difference. First operand 2473 states and 3437 transitions. Second operand has 8 states, 8 states have (on average 25.125) internal successors, (201), 6 states have internal predecessors, (201), 3 states have call successors, (55), 3 states have call predecessors, (55), 3 states have return successors, (51), 3 states have call predecessors, (51), 1 states have call successors, (51) [2021-11-19 14:39:06,253 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:39:08,258 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:39:08,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:39:08,661 INFO L93 Difference]: Finished difference Result 2473 states and 3437 transitions. [2021-11-19 14:39:08,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-19 14:39:08,662 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 25.125) internal successors, (201), 6 states have internal predecessors, (201), 3 states have call successors, (55), 3 states have call predecessors, (55), 3 states have return successors, (51), 3 states have call predecessors, (51), 1 states have call successors, (51) Word has length 400 [2021-11-19 14:39:08,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:39:08,663 INFO L225 Difference]: With dead ends: 2473 [2021-11-19 14:39:08,663 INFO L226 Difference]: Without dead ends: 0 [2021-11-19 14:39:08,667 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 800 GetRequests, 792 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2021-11-19 14:39:08,667 INFO L933 BasicCegarLoop]: 3267 mSDtfsCounter, 205 mSDsluCounter, 15974 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 206 SdHoareTripleChecker+Valid, 19241 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2021-11-19 14:39:08,667 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [206 Valid, 19241 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 2 Unknown, 0 Unchecked, 4.3s Time] [2021-11-19 14:39:08,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-19 14:39:08,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-19 14:39:08,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 14:39:08,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-19 14:39:08,668 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 400 [2021-11-19 14:39:08,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:39:08,669 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-19 14:39:08,669 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 25.125) internal successors, (201), 6 states have internal predecessors, (201), 3 states have call successors, (55), 3 states have call predecessors, (55), 3 states have return successors, (51), 3 states have call predecessors, (51), 1 states have call successors, (51) [2021-11-19 14:39:08,669 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-19 14:39:08,669 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-19 14:39:08,671 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (32 of 33 remaining) [2021-11-19 14:39:08,671 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (31 of 33 remaining) [2021-11-19 14:39:08,671 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_linux_kernel_rcu_update_lock_bh_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (30 of 33 remaining) [2021-11-19 14:39:08,671 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (29 of 33 remaining) [2021-11-19 14:39:08,671 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_linux_block_genhd_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (28 of 33 remaining) [2021-11-19 14:39:08,672 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_linux_usb_urb_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (27 of 33 remaining) [2021-11-19 14:39:08,672 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION (26 of 33 remaining) [2021-11-19 14:39:08,672 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_check_alloc_nonatomicErr1ASSERT_VIOLATIONERROR_FUNCTION (25 of 33 remaining) [2021-11-19 14:39:08,672 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (24 of 33 remaining) [2021-11-19 14:39:08,672 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION (23 of 33 remaining) [2021-11-19 14:39:08,672 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_check_alloc_flagsErr1ASSERT_VIOLATIONERROR_FUNCTION (22 of 33 remaining) [2021-11-19 14:39:08,673 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_linux_kernel_locking_rwlock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (21 of 33 remaining) [2021-11-19 14:39:08,673 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_linux_kernel_locking_rwlock_check_final_stateErr1ASSERT_VIOLATIONERROR_FUNCTION (20 of 33 remaining) [2021-11-19 14:39:08,673 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_linux_mmc_sdio_func_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (19 of 33 remaining) [2021-11-19 14:39:08,673 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (18 of 33 remaining) [2021-11-19 14:39:08,673 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_linux_lib_idr_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (17 of 33 remaining) [2021-11-19 14:39:08,674 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (16 of 33 remaining) [2021-11-19 14:39:08,674 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_linux_fs_char_dev_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (15 of 33 remaining) [2021-11-19 14:39:08,674 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_linux_kernel_rcu_srcu_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (14 of 33 remaining) [2021-11-19 14:39:08,674 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_linux_arch_io_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (13 of 33 remaining) [2021-11-19 14:39:08,674 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_linux_kernel_module_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (12 of 33 remaining) [2021-11-19 14:39:08,674 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_linux_drivers_base_class_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (11 of 33 remaining) [2021-11-19 14:39:08,675 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_linux_net_sock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (10 of 33 remaining) [2021-11-19 14:39:08,675 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_check_for_read_sectionErr0ASSERT_VIOLATIONERROR_FUNCTION (9 of 33 remaining) [2021-11-19 14:39:08,675 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_check_for_read_sectionErr1ASSERT_VIOLATIONERROR_FUNCTION (8 of 33 remaining) [2021-11-19 14:39:08,675 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_check_for_read_sectionErr2ASSERT_VIOLATIONERROR_FUNCTION (7 of 33 remaining) [2021-11-19 14:39:08,675 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_check_for_read_sectionErr3ASSERT_VIOLATIONERROR_FUNCTION (6 of 33 remaining) [2021-11-19 14:39:08,676 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (5 of 33 remaining) [2021-11-19 14:39:08,676 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 33 remaining) [2021-11-19 14:39:08,676 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_linux_block_queue_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 33 remaining) [2021-11-19 14:39:08,676 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_linux_kernel_rcu_update_lock_sched_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 33 remaining) [2021-11-19 14:39:08,676 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_linux_net_rtnetlink_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 33 remaining) [2021-11-19 14:39:08,677 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_linux_block_request_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 33 remaining) [2021-11-19 14:39:08,729 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (52)] Forceful destruction successful, exit code 0 [2021-11-19 14:39:08,877 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 52 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5daf5c-f8c1-4115-8c2c-a0131f65203a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:39:08,879 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.