./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b5237d83 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267017c2-7ad2-487e-b5b1-e385037f26e1/bin/utaipan-g80aRyZoba/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267017c2-7ad2-487e-b5b1-e385037f26e1/bin/utaipan-g80aRyZoba/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267017c2-7ad2-487e-b5b1-e385037f26e1/bin/utaipan-g80aRyZoba/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267017c2-7ad2-487e-b5b1-e385037f26e1/bin/utaipan-g80aRyZoba/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267017c2-7ad2-487e-b5b1-e385037f26e1/bin/utaipan-g80aRyZoba/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267017c2-7ad2-487e-b5b1-e385037f26e1/bin/utaipan-g80aRyZoba --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 cc21d3f2365aa3e9759266a2897b17abd63f704e2f2c46d2220f73d4b814d4db --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-b5237d8 [2022-11-22 01:34:32,466 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-22 01:34:32,468 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-22 01:34:32,488 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-22 01:34:32,495 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-22 01:34:32,499 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-22 01:34:32,502 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-22 01:34:32,506 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-22 01:34:32,508 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-22 01:34:32,514 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-22 01:34:32,516 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-22 01:34:32,518 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-22 01:34:32,518 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-22 01:34:32,524 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-22 01:34:32,526 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-22 01:34:32,529 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-22 01:34:32,530 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-22 01:34:32,531 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-22 01:34:32,533 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-22 01:34:32,540 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-22 01:34:32,541 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-22 01:34:32,542 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-22 01:34:32,546 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-22 01:34:32,547 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-22 01:34:32,551 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-22 01:34:32,551 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-22 01:34:32,551 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-22 01:34:32,552 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-22 01:34:32,553 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-22 01:34:32,554 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-22 01:34:32,554 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-22 01:34:32,555 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-22 01:34:32,555 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-22 01:34:32,556 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-22 01:34:32,557 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-22 01:34:32,557 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-22 01:34:32,562 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-22 01:34:32,564 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-22 01:34:32,564 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-22 01:34:32,565 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-22 01:34:32,566 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-22 01:34:32,567 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267017c2-7ad2-487e-b5b1-e385037f26e1/bin/utaipan-g80aRyZoba/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-22 01:34:32,612 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-22 01:34:32,612 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-22 01:34:32,613 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-22 01:34:32,613 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-22 01:34:32,613 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-22 01:34:32,614 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-22 01:34:32,616 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-22 01:34:32,616 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-22 01:34:32,617 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-22 01:34:32,617 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-22 01:34:32,618 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-22 01:34:32,618 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-22 01:34:32,618 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-22 01:34:32,619 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-22 01:34:32,619 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-22 01:34:32,619 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-22 01:34:32,619 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-22 01:34:32,619 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-22 01:34:32,621 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-22 01:34:32,621 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-22 01:34:32,621 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-22 01:34:32,621 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-22 01:34:32,622 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-22 01:34:32,622 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-22 01:34:32,622 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-22 01:34:32,622 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-22 01:34:32,623 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-22 01:34:32,623 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-22 01:34:32,623 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-22 01:34:32,623 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 01:34:32,624 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-22 01:34:32,624 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-22 01:34:32,624 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-22 01:34:32,625 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-22 01:34:32,625 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-22 01:34:32,625 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-22 01:34:32,626 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-22 01:34:32,626 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-22 01:34:32,626 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267017c2-7ad2-487e-b5b1-e385037f26e1/bin/utaipan-g80aRyZoba/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267017c2-7ad2-487e-b5b1-e385037f26e1/bin/utaipan-g80aRyZoba Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cc21d3f2365aa3e9759266a2897b17abd63f704e2f2c46d2220f73d4b814d4db [2022-11-22 01:34:32,906 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-22 01:34:32,933 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-22 01:34:32,937 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-22 01:34:32,938 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-22 01:34:32,939 INFO L275 PluginConnector]: CDTParser initialized [2022-11-22 01:34:32,940 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267017c2-7ad2-487e-b5b1-e385037f26e1/bin/utaipan-g80aRyZoba/../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i [2022-11-22 01:34:36,218 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-22 01:34:36,849 INFO L351 CDTParser]: Found 1 translation units. [2022-11-22 01:34:36,849 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267017c2-7ad2-487e-b5b1-e385037f26e1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i [2022-11-22 01:34:36,902 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267017c2-7ad2-487e-b5b1-e385037f26e1/bin/utaipan-g80aRyZoba/data/7307bb17c/4965ecaa52c4412bb47cb6cbe9f21b70/FLAG6a1d3261c [2022-11-22 01:34:36,925 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267017c2-7ad2-487e-b5b1-e385037f26e1/bin/utaipan-g80aRyZoba/data/7307bb17c/4965ecaa52c4412bb47cb6cbe9f21b70 [2022-11-22 01:34:36,931 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-22 01:34:36,933 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-22 01:34:36,939 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-22 01:34:36,940 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-22 01:34:36,944 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-22 01:34:36,945 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:34:36" (1/1) ... [2022-11-22 01:34:36,947 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@19bdcaec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:34:36, skipping insertion in model container [2022-11-22 01:34:36,947 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:34:36" (1/1) ... [2022-11-22 01:34:36,956 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-22 01:34:37,153 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-22 01:34:40,455 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267017c2-7ad2-487e-b5b1-e385037f26e1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[300556,300569] [2022-11-22 01:34:40,462 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267017c2-7ad2-487e-b5b1-e385037f26e1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[300701,300714] [2022-11-22 01:34:40,463 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267017c2-7ad2-487e-b5b1-e385037f26e1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[300847,300860] [2022-11-22 01:34:40,463 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267017c2-7ad2-487e-b5b1-e385037f26e1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[301012,301025] [2022-11-22 01:34:40,463 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267017c2-7ad2-487e-b5b1-e385037f26e1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[301170,301183] [2022-11-22 01:34:40,464 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267017c2-7ad2-487e-b5b1-e385037f26e1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[301328,301341] [2022-11-22 01:34:40,464 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267017c2-7ad2-487e-b5b1-e385037f26e1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[301486,301499] [2022-11-22 01:34:40,465 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267017c2-7ad2-487e-b5b1-e385037f26e1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[301646,301659] [2022-11-22 01:34:40,465 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267017c2-7ad2-487e-b5b1-e385037f26e1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[301805,301818] [2022-11-22 01:34:40,466 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267017c2-7ad2-487e-b5b1-e385037f26e1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[301944,301957] [2022-11-22 01:34:40,466 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267017c2-7ad2-487e-b5b1-e385037f26e1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[302086,302099] [2022-11-22 01:34:40,467 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267017c2-7ad2-487e-b5b1-e385037f26e1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[302235,302248] [2022-11-22 01:34:40,467 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267017c2-7ad2-487e-b5b1-e385037f26e1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[302374,302387] [2022-11-22 01:34:40,468 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267017c2-7ad2-487e-b5b1-e385037f26e1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[302529,302542] [2022-11-22 01:34:40,468 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267017c2-7ad2-487e-b5b1-e385037f26e1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[302689,302702] [2022-11-22 01:34:40,469 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267017c2-7ad2-487e-b5b1-e385037f26e1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[302840,302853] [2022-11-22 01:34:40,470 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267017c2-7ad2-487e-b5b1-e385037f26e1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[302991,303004] [2022-11-22 01:34:40,470 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267017c2-7ad2-487e-b5b1-e385037f26e1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[303143,303156] [2022-11-22 01:34:40,471 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267017c2-7ad2-487e-b5b1-e385037f26e1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[303292,303305] [2022-11-22 01:34:40,471 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267017c2-7ad2-487e-b5b1-e385037f26e1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[303440,303453] [2022-11-22 01:34:40,472 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267017c2-7ad2-487e-b5b1-e385037f26e1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[303597,303610] [2022-11-22 01:34:40,473 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267017c2-7ad2-487e-b5b1-e385037f26e1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[303746,303759] [2022-11-22 01:34:40,473 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267017c2-7ad2-487e-b5b1-e385037f26e1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[303902,303915] [2022-11-22 01:34:40,474 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267017c2-7ad2-487e-b5b1-e385037f26e1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[304055,304068] [2022-11-22 01:34:40,475 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267017c2-7ad2-487e-b5b1-e385037f26e1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[304201,304214] [2022-11-22 01:34:40,475 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267017c2-7ad2-487e-b5b1-e385037f26e1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[304344,304357] [2022-11-22 01:34:40,483 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267017c2-7ad2-487e-b5b1-e385037f26e1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[304496,304509] [2022-11-22 01:34:40,485 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267017c2-7ad2-487e-b5b1-e385037f26e1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[304642,304655] [2022-11-22 01:34:40,486 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267017c2-7ad2-487e-b5b1-e385037f26e1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[304787,304800] [2022-11-22 01:34:40,487 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267017c2-7ad2-487e-b5b1-e385037f26e1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[304941,304954] [2022-11-22 01:34:40,487 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267017c2-7ad2-487e-b5b1-e385037f26e1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[305092,305105] [2022-11-22 01:34:40,488 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267017c2-7ad2-487e-b5b1-e385037f26e1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[305247,305260] [2022-11-22 01:34:40,489 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267017c2-7ad2-487e-b5b1-e385037f26e1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[305399,305412] [2022-11-22 01:34:40,489 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267017c2-7ad2-487e-b5b1-e385037f26e1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[305554,305567] [2022-11-22 01:34:40,489 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267017c2-7ad2-487e-b5b1-e385037f26e1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[305718,305731] [2022-11-22 01:34:40,490 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267017c2-7ad2-487e-b5b1-e385037f26e1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[305874,305887] [2022-11-22 01:34:40,491 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267017c2-7ad2-487e-b5b1-e385037f26e1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[306038,306051] [2022-11-22 01:34:40,491 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267017c2-7ad2-487e-b5b1-e385037f26e1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[306180,306193] [2022-11-22 01:34:40,492 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267017c2-7ad2-487e-b5b1-e385037f26e1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[306338,306351] [2022-11-22 01:34:40,492 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267017c2-7ad2-487e-b5b1-e385037f26e1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[306505,306518] [2022-11-22 01:34:40,493 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267017c2-7ad2-487e-b5b1-e385037f26e1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[306664,306677] [2022-11-22 01:34:40,494 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267017c2-7ad2-487e-b5b1-e385037f26e1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[306823,306836] [2022-11-22 01:34:40,495 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267017c2-7ad2-487e-b5b1-e385037f26e1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[306972,306985] [2022-11-22 01:34:40,495 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267017c2-7ad2-487e-b5b1-e385037f26e1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[307119,307132] [2022-11-22 01:34:40,496 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267017c2-7ad2-487e-b5b1-e385037f26e1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[307258,307271] [2022-11-22 01:34:40,496 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267017c2-7ad2-487e-b5b1-e385037f26e1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[307421,307434] [2022-11-22 01:34:40,496 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267017c2-7ad2-487e-b5b1-e385037f26e1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[307587,307600] [2022-11-22 01:34:40,498 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267017c2-7ad2-487e-b5b1-e385037f26e1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[307751,307764] [2022-11-22 01:34:40,498 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267017c2-7ad2-487e-b5b1-e385037f26e1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[307916,307929] [2022-11-22 01:34:40,499 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267017c2-7ad2-487e-b5b1-e385037f26e1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[308081,308094] [2022-11-22 01:34:40,499 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267017c2-7ad2-487e-b5b1-e385037f26e1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[308247,308260] [2022-11-22 01:34:40,500 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267017c2-7ad2-487e-b5b1-e385037f26e1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[308412,308425] [2022-11-22 01:34:40,500 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267017c2-7ad2-487e-b5b1-e385037f26e1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[308579,308592] [2022-11-22 01:34:40,501 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267017c2-7ad2-487e-b5b1-e385037f26e1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[308739,308752] [2022-11-22 01:34:40,501 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267017c2-7ad2-487e-b5b1-e385037f26e1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[308901,308914] [2022-11-22 01:34:40,502 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267017c2-7ad2-487e-b5b1-e385037f26e1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[309060,309073] [2022-11-22 01:34:40,502 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267017c2-7ad2-487e-b5b1-e385037f26e1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[309206,309219] [2022-11-22 01:34:40,502 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267017c2-7ad2-487e-b5b1-e385037f26e1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[309349,309362] [2022-11-22 01:34:40,503 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267017c2-7ad2-487e-b5b1-e385037f26e1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[309493,309506] [2022-11-22 01:34:40,503 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267017c2-7ad2-487e-b5b1-e385037f26e1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[309636,309649] [2022-11-22 01:34:40,504 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267017c2-7ad2-487e-b5b1-e385037f26e1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[309780,309793] [2022-11-22 01:34:40,504 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267017c2-7ad2-487e-b5b1-e385037f26e1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[309921,309934] [2022-11-22 01:34:40,505 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267017c2-7ad2-487e-b5b1-e385037f26e1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[310059,310072] [2022-11-22 01:34:40,505 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267017c2-7ad2-487e-b5b1-e385037f26e1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[310217,310230] [2022-11-22 01:34:40,506 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267017c2-7ad2-487e-b5b1-e385037f26e1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[310376,310389] [2022-11-22 01:34:40,506 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267017c2-7ad2-487e-b5b1-e385037f26e1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[310532,310545] [2022-11-22 01:34:40,507 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267017c2-7ad2-487e-b5b1-e385037f26e1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[310681,310694] [2022-11-22 01:34:40,508 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267017c2-7ad2-487e-b5b1-e385037f26e1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[310833,310846] [2022-11-22 01:34:40,509 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267017c2-7ad2-487e-b5b1-e385037f26e1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[310984,310997] [2022-11-22 01:34:40,510 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267017c2-7ad2-487e-b5b1-e385037f26e1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[311133,311146] [2022-11-22 01:34:40,510 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267017c2-7ad2-487e-b5b1-e385037f26e1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[311285,311298] [2022-11-22 01:34:40,510 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267017c2-7ad2-487e-b5b1-e385037f26e1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[311433,311446] [2022-11-22 01:34:40,511 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267017c2-7ad2-487e-b5b1-e385037f26e1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[311586,311599] [2022-11-22 01:34:40,512 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267017c2-7ad2-487e-b5b1-e385037f26e1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[311737,311750] [2022-11-22 01:34:40,512 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267017c2-7ad2-487e-b5b1-e385037f26e1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[311887,311900] [2022-11-22 01:34:40,512 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267017c2-7ad2-487e-b5b1-e385037f26e1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[312034,312047] [2022-11-22 01:34:40,513 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267017c2-7ad2-487e-b5b1-e385037f26e1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[312185,312198] [2022-11-22 01:34:40,513 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267017c2-7ad2-487e-b5b1-e385037f26e1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[312336,312349] [2022-11-22 01:34:40,515 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267017c2-7ad2-487e-b5b1-e385037f26e1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[312484,312497] [2022-11-22 01:34:40,515 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267017c2-7ad2-487e-b5b1-e385037f26e1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[312650,312663] [2022-11-22 01:34:40,516 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267017c2-7ad2-487e-b5b1-e385037f26e1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[312819,312832] [2022-11-22 01:34:40,516 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267017c2-7ad2-487e-b5b1-e385037f26e1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[312986,312999] [2022-11-22 01:34:40,517 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267017c2-7ad2-487e-b5b1-e385037f26e1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[313154,313167] [2022-11-22 01:34:40,517 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267017c2-7ad2-487e-b5b1-e385037f26e1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[313304,313317] [2022-11-22 01:34:40,519 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267017c2-7ad2-487e-b5b1-e385037f26e1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[313451,313464] [2022-11-22 01:34:40,520 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267017c2-7ad2-487e-b5b1-e385037f26e1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[313612,313625] [2022-11-22 01:34:40,520 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267017c2-7ad2-487e-b5b1-e385037f26e1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[313782,313795] [2022-11-22 01:34:40,520 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267017c2-7ad2-487e-b5b1-e385037f26e1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[313944,313957] [2022-11-22 01:34:40,531 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 01:34:40,575 INFO L203 MainTranslator]: Completed pre-run [2022-11-22 01:34:40,978 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267017c2-7ad2-487e-b5b1-e385037f26e1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[300556,300569] [2022-11-22 01:34:40,978 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267017c2-7ad2-487e-b5b1-e385037f26e1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[300701,300714] [2022-11-22 01:34:40,979 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267017c2-7ad2-487e-b5b1-e385037f26e1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[300847,300860] [2022-11-22 01:34:40,979 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267017c2-7ad2-487e-b5b1-e385037f26e1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[301012,301025] [2022-11-22 01:34:40,979 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267017c2-7ad2-487e-b5b1-e385037f26e1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[301170,301183] [2022-11-22 01:34:40,980 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267017c2-7ad2-487e-b5b1-e385037f26e1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[301328,301341] [2022-11-22 01:34:40,980 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267017c2-7ad2-487e-b5b1-e385037f26e1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[301486,301499] [2022-11-22 01:34:40,981 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267017c2-7ad2-487e-b5b1-e385037f26e1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[301646,301659] [2022-11-22 01:34:40,981 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267017c2-7ad2-487e-b5b1-e385037f26e1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[301805,301818] [2022-11-22 01:34:40,981 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267017c2-7ad2-487e-b5b1-e385037f26e1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[301944,301957] [2022-11-22 01:34:40,982 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267017c2-7ad2-487e-b5b1-e385037f26e1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[302086,302099] [2022-11-22 01:34:40,982 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267017c2-7ad2-487e-b5b1-e385037f26e1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[302235,302248] [2022-11-22 01:34:40,983 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267017c2-7ad2-487e-b5b1-e385037f26e1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[302374,302387] [2022-11-22 01:34:40,983 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267017c2-7ad2-487e-b5b1-e385037f26e1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[302529,302542] [2022-11-22 01:34:40,983 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267017c2-7ad2-487e-b5b1-e385037f26e1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[302689,302702] [2022-11-22 01:34:40,984 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267017c2-7ad2-487e-b5b1-e385037f26e1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[302840,302853] [2022-11-22 01:34:40,984 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267017c2-7ad2-487e-b5b1-e385037f26e1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[302991,303004] [2022-11-22 01:34:40,985 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267017c2-7ad2-487e-b5b1-e385037f26e1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[303143,303156] [2022-11-22 01:34:40,985 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267017c2-7ad2-487e-b5b1-e385037f26e1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[303292,303305] [2022-11-22 01:34:40,986 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267017c2-7ad2-487e-b5b1-e385037f26e1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[303440,303453] [2022-11-22 01:34:40,986 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267017c2-7ad2-487e-b5b1-e385037f26e1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[303597,303610] [2022-11-22 01:34:40,987 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267017c2-7ad2-487e-b5b1-e385037f26e1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[303746,303759] [2022-11-22 01:34:40,988 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267017c2-7ad2-487e-b5b1-e385037f26e1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[303902,303915] [2022-11-22 01:34:40,988 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267017c2-7ad2-487e-b5b1-e385037f26e1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[304055,304068] [2022-11-22 01:34:40,989 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267017c2-7ad2-487e-b5b1-e385037f26e1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[304201,304214] [2022-11-22 01:34:40,989 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267017c2-7ad2-487e-b5b1-e385037f26e1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[304344,304357] [2022-11-22 01:34:40,989 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267017c2-7ad2-487e-b5b1-e385037f26e1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[304496,304509] [2022-11-22 01:34:40,991 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267017c2-7ad2-487e-b5b1-e385037f26e1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[304642,304655] [2022-11-22 01:34:40,991 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267017c2-7ad2-487e-b5b1-e385037f26e1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[304787,304800] [2022-11-22 01:34:40,991 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267017c2-7ad2-487e-b5b1-e385037f26e1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[304941,304954] [2022-11-22 01:34:40,992 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267017c2-7ad2-487e-b5b1-e385037f26e1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[305092,305105] [2022-11-22 01:34:40,992 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267017c2-7ad2-487e-b5b1-e385037f26e1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[305247,305260] [2022-11-22 01:34:40,993 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267017c2-7ad2-487e-b5b1-e385037f26e1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[305399,305412] [2022-11-22 01:34:40,993 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267017c2-7ad2-487e-b5b1-e385037f26e1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[305554,305567] [2022-11-22 01:34:40,993 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267017c2-7ad2-487e-b5b1-e385037f26e1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[305718,305731] [2022-11-22 01:34:40,994 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267017c2-7ad2-487e-b5b1-e385037f26e1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[305874,305887] [2022-11-22 01:34:40,995 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267017c2-7ad2-487e-b5b1-e385037f26e1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[306038,306051] [2022-11-22 01:34:40,995 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267017c2-7ad2-487e-b5b1-e385037f26e1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[306180,306193] [2022-11-22 01:34:40,996 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267017c2-7ad2-487e-b5b1-e385037f26e1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[306338,306351] [2022-11-22 01:34:40,996 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267017c2-7ad2-487e-b5b1-e385037f26e1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[306505,306518] [2022-11-22 01:34:40,997 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267017c2-7ad2-487e-b5b1-e385037f26e1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[306664,306677] [2022-11-22 01:34:40,998 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267017c2-7ad2-487e-b5b1-e385037f26e1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[306823,306836] [2022-11-22 01:34:40,998 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267017c2-7ad2-487e-b5b1-e385037f26e1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[306972,306985] [2022-11-22 01:34:40,999 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267017c2-7ad2-487e-b5b1-e385037f26e1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[307119,307132] [2022-11-22 01:34:40,999 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267017c2-7ad2-487e-b5b1-e385037f26e1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[307258,307271] [2022-11-22 01:34:40,999 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267017c2-7ad2-487e-b5b1-e385037f26e1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[307421,307434] [2022-11-22 01:34:41,000 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267017c2-7ad2-487e-b5b1-e385037f26e1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[307587,307600] [2022-11-22 01:34:41,000 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267017c2-7ad2-487e-b5b1-e385037f26e1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[307751,307764] [2022-11-22 01:34:41,001 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267017c2-7ad2-487e-b5b1-e385037f26e1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[307916,307929] [2022-11-22 01:34:41,001 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267017c2-7ad2-487e-b5b1-e385037f26e1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[308081,308094] [2022-11-22 01:34:41,002 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267017c2-7ad2-487e-b5b1-e385037f26e1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[308247,308260] [2022-11-22 01:34:41,002 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267017c2-7ad2-487e-b5b1-e385037f26e1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[308412,308425] [2022-11-22 01:34:41,002 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267017c2-7ad2-487e-b5b1-e385037f26e1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[308579,308592] [2022-11-22 01:34:41,003 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267017c2-7ad2-487e-b5b1-e385037f26e1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[308739,308752] [2022-11-22 01:34:41,004 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267017c2-7ad2-487e-b5b1-e385037f26e1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[308901,308914] [2022-11-22 01:34:41,005 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267017c2-7ad2-487e-b5b1-e385037f26e1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[309060,309073] [2022-11-22 01:34:41,008 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267017c2-7ad2-487e-b5b1-e385037f26e1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[309206,309219] [2022-11-22 01:34:41,009 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267017c2-7ad2-487e-b5b1-e385037f26e1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[309349,309362] [2022-11-22 01:34:41,010 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267017c2-7ad2-487e-b5b1-e385037f26e1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[309493,309506] [2022-11-22 01:34:41,010 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267017c2-7ad2-487e-b5b1-e385037f26e1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[309636,309649] [2022-11-22 01:34:41,011 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267017c2-7ad2-487e-b5b1-e385037f26e1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[309780,309793] [2022-11-22 01:34:41,012 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267017c2-7ad2-487e-b5b1-e385037f26e1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[309921,309934] [2022-11-22 01:34:41,017 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267017c2-7ad2-487e-b5b1-e385037f26e1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[310059,310072] [2022-11-22 01:34:41,018 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267017c2-7ad2-487e-b5b1-e385037f26e1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[310217,310230] [2022-11-22 01:34:41,018 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267017c2-7ad2-487e-b5b1-e385037f26e1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[310376,310389] [2022-11-22 01:34:41,024 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267017c2-7ad2-487e-b5b1-e385037f26e1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[310532,310545] [2022-11-22 01:34:41,025 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267017c2-7ad2-487e-b5b1-e385037f26e1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[310681,310694] [2022-11-22 01:34:41,025 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267017c2-7ad2-487e-b5b1-e385037f26e1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[310833,310846] [2022-11-22 01:34:41,025 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267017c2-7ad2-487e-b5b1-e385037f26e1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[310984,310997] [2022-11-22 01:34:41,026 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267017c2-7ad2-487e-b5b1-e385037f26e1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[311133,311146] [2022-11-22 01:34:41,026 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267017c2-7ad2-487e-b5b1-e385037f26e1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[311285,311298] [2022-11-22 01:34:41,027 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267017c2-7ad2-487e-b5b1-e385037f26e1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[311433,311446] [2022-11-22 01:34:41,028 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267017c2-7ad2-487e-b5b1-e385037f26e1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[311586,311599] [2022-11-22 01:34:41,029 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267017c2-7ad2-487e-b5b1-e385037f26e1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[311737,311750] [2022-11-22 01:34:41,029 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267017c2-7ad2-487e-b5b1-e385037f26e1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[311887,311900] [2022-11-22 01:34:41,030 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267017c2-7ad2-487e-b5b1-e385037f26e1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[312034,312047] [2022-11-22 01:34:41,030 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267017c2-7ad2-487e-b5b1-e385037f26e1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[312185,312198] [2022-11-22 01:34:41,031 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267017c2-7ad2-487e-b5b1-e385037f26e1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[312336,312349] [2022-11-22 01:34:41,033 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267017c2-7ad2-487e-b5b1-e385037f26e1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[312484,312497] [2022-11-22 01:34:41,038 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267017c2-7ad2-487e-b5b1-e385037f26e1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[312650,312663] [2022-11-22 01:34:41,039 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267017c2-7ad2-487e-b5b1-e385037f26e1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[312819,312832] [2022-11-22 01:34:41,039 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267017c2-7ad2-487e-b5b1-e385037f26e1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[312986,312999] [2022-11-22 01:34:41,040 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267017c2-7ad2-487e-b5b1-e385037f26e1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[313154,313167] [2022-11-22 01:34:41,040 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267017c2-7ad2-487e-b5b1-e385037f26e1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[313304,313317] [2022-11-22 01:34:41,041 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267017c2-7ad2-487e-b5b1-e385037f26e1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[313451,313464] [2022-11-22 01:34:41,041 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267017c2-7ad2-487e-b5b1-e385037f26e1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[313612,313625] [2022-11-22 01:34:41,042 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267017c2-7ad2-487e-b5b1-e385037f26e1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[313782,313795] [2022-11-22 01:34:41,042 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267017c2-7ad2-487e-b5b1-e385037f26e1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i[313944,313957] [2022-11-22 01:34:41,047 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 01:34:41,245 INFO L208 MainTranslator]: Completed translation [2022-11-22 01:34:41,246 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:34:41 WrapperNode [2022-11-22 01:34:41,246 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-22 01:34:41,247 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-22 01:34:41,247 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-22 01:34:41,247 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-22 01:34:41,256 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:34:41" (1/1) ... [2022-11-22 01:34:41,343 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:34:41" (1/1) ... [2022-11-22 01:34:41,534 INFO L138 Inliner]: procedures = 554, calls = 1454, calls flagged for inlining = 247, calls inlined = 157, statements flattened = 3201 [2022-11-22 01:34:41,535 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-22 01:34:41,536 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-22 01:34:41,536 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-22 01:34:41,536 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-22 01:34:41,550 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:34:41" (1/1) ... [2022-11-22 01:34:41,550 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:34:41" (1/1) ... [2022-11-22 01:34:41,594 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:34:41" (1/1) ... [2022-11-22 01:34:41,595 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:34:41" (1/1) ... [2022-11-22 01:34:41,712 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:34:41" (1/1) ... [2022-11-22 01:34:41,740 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:34:41" (1/1) ... [2022-11-22 01:34:41,772 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:34:41" (1/1) ... [2022-11-22 01:34:41,783 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:34:41" (1/1) ... [2022-11-22 01:34:41,799 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-22 01:34:41,800 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-22 01:34:41,800 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-22 01:34:41,801 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-22 01:34:41,801 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:34:41" (1/1) ... [2022-11-22 01:34:41,808 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 01:34:41,821 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267017c2-7ad2-487e-b5b1-e385037f26e1/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:34:41,834 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267017c2-7ad2-487e-b5b1-e385037f26e1/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-22 01:34:41,866 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267017c2-7ad2-487e-b5b1-e385037f26e1/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-22 01:34:41,885 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_97 [2022-11-22 01:34:41,885 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_97 [2022-11-22 01:34:41,885 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_coherent_check_final_state [2022-11-22 01:34:41,885 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_coherent_check_final_state [2022-11-22 01:34:41,885 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-22 01:34:41,886 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-22 01:34:41,886 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_mmc_sdio_func_check_final_state [2022-11-22 01:34:41,886 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_mmc_sdio_func_check_final_state [2022-11-22 01:34:41,886 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_genhd_del_gendisk [2022-11-22 01:34:41,886 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_genhd_del_gendisk [2022-11-22 01:34:41,887 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-11-22 01:34:41,887 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-11-22 01:34:41,887 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_arch_io_check_final_state [2022-11-22 01:34:41,887 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_arch_io_check_final_state [2022-11-22 01:34:41,887 INFO L130 BoogieDeclarations]: Found specification of procedure init_vq [2022-11-22 01:34:41,887 INFO L138 BoogieDeclarations]: Found implementation of procedure init_vq [2022-11-22 01:34:41,888 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_module_check_final_state [2022-11-22 01:34:41,888 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_module_check_final_state [2022-11-22 01:34:41,888 INFO L130 BoogieDeclarations]: Found specification of procedure virtblk_config_changed [2022-11-22 01:34:41,888 INFO L138 BoogieDeclarations]: Found implementation of procedure virtblk_config_changed [2022-11-22 01:34:41,888 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-11-22 01:34:41,888 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-11-22 01:34:41,889 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-22 01:34:41,889 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-22 01:34:41,889 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_queue_check_final_state [2022-11-22 01:34:41,889 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_queue_check_final_state [2022-11-22 01:34:41,889 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-22 01:34:41,889 INFO L130 BoogieDeclarations]: Found specification of procedure virtblk_get_cache_mode [2022-11-22 01:34:41,890 INFO L138 BoogieDeclarations]: Found implementation of procedure virtblk_get_cache_mode [2022-11-22 01:34:41,890 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-11-22 01:34:41,890 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-11-22 01:34:41,890 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_request_check_final_state [2022-11-22 01:34:41,890 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_request_check_final_state [2022-11-22 01:34:41,891 INFO L130 BoogieDeclarations]: Found specification of procedure string_get_size [2022-11-22 01:34:41,891 INFO L138 BoogieDeclarations]: Found implementation of procedure string_get_size [2022-11-22 01:34:41,891 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-22 01:34:41,891 INFO L130 BoogieDeclarations]: Found specification of procedure blk_mq_free_tag_set [2022-11-22 01:34:41,891 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_mq_free_tag_set [2022-11-22 01:34:41,891 INFO L130 BoogieDeclarations]: Found specification of procedure virtblk_update_cache_mode [2022-11-22 01:34:41,892 INFO L138 BoogieDeclarations]: Found implementation of procedure virtblk_update_cache_mode [2022-11-22 01:34:41,892 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-22 01:34:41,892 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_queue_blk_cleanup_queue [2022-11-22 01:34:41,892 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_queue_blk_cleanup_queue [2022-11-22 01:34:41,892 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_in_interrupt_context [2022-11-22 01:34:41,892 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_in_interrupt_context [2022-11-22 01:34:41,893 INFO L130 BoogieDeclarations]: Found specification of procedure flush_work [2022-11-22 01:34:41,893 INFO L138 BoogieDeclarations]: Found implementation of procedure flush_work [2022-11-22 01:34:41,893 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-11-22 01:34:41,893 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-11-22 01:34:41,893 INFO L130 BoogieDeclarations]: Found specification of procedure blk_queue_flush [2022-11-22 01:34:41,893 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_queue_flush [2022-11-22 01:34:41,894 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_bh_check_final_state [2022-11-22 01:34:41,894 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_bh_check_final_state [2022-11-22 01:34:41,894 INFO L130 BoogieDeclarations]: Found specification of procedure ida_simple_remove [2022-11-22 01:34:41,894 INFO L138 BoogieDeclarations]: Found implementation of procedure ida_simple_remove [2022-11-22 01:34:41,894 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-22 01:34:41,894 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_genhd_check_final_state [2022-11-22 01:34:41,895 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_genhd_check_final_state [2022-11-22 01:34:41,895 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_after_alloc [2022-11-22 01:34:41,895 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_after_alloc [2022-11-22 01:34:41,895 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_register_reset_error_counter [2022-11-22 01:34:41,895 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_register_reset_error_counter [2022-11-22 01:34:41,895 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2022-11-22 01:34:41,896 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2022-11-22 01:34:41,896 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_blkdev [2022-11-22 01:34:41,896 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_blkdev [2022-11-22 01:34:41,896 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_lib_idr_check_final_state [2022-11-22 01:34:41,896 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_lib_idr_check_final_state [2022-11-22 01:34:41,897 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_srcu_check_final_state [2022-11-22 01:34:41,897 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_srcu_check_final_state [2022-11-22 01:34:41,897 INFO L130 BoogieDeclarations]: Found specification of procedure virtio_cread8 [2022-11-22 01:34:41,897 INFO L138 BoogieDeclarations]: Found implementation of procedure virtio_cread8 [2022-11-22 01:34:41,897 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-22 01:34:41,897 INFO L130 BoogieDeclarations]: Found specification of procedure revalidate_disk [2022-11-22 01:34:41,898 INFO L138 BoogieDeclarations]: Found implementation of procedure revalidate_disk [2022-11-22 01:34:41,898 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-22 01:34:41,898 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-22 01:34:41,898 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-22 01:34:41,898 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-22 01:34:41,898 INFO L130 BoogieDeclarations]: Found specification of procedure blk_cleanup_queue [2022-11-22 01:34:41,899 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_cleanup_queue [2022-11-22 01:34:41,899 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-22 01:34:41,899 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-22 01:34:41,899 INFO L130 BoogieDeclarations]: Found specification of procedure virtblk_remove [2022-11-22 01:34:41,899 INFO L138 BoogieDeclarations]: Found implementation of procedure virtblk_remove [2022-11-22 01:34:41,900 INFO L130 BoogieDeclarations]: Found specification of procedure virtblk_cache_type_store [2022-11-22 01:34:41,900 INFO L138 BoogieDeclarations]: Found implementation of procedure virtblk_cache_type_store [2022-11-22 01:34:41,900 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~~u32~0 [2022-11-22 01:34:41,900 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~~u32~0 [2022-11-22 01:34:41,900 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_register_reset_error_counter [2022-11-22 01:34:41,900 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_register_reset_error_counter [2022-11-22 01:34:41,901 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-22 01:34:41,901 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-22 01:34:41,901 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-11-22 01:34:41,901 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-11-22 01:34:41,901 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-22 01:34:41,901 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-22 01:34:41,902 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-22 01:34:41,902 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-22 01:34:41,902 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-11-22 01:34:41,902 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-11-22 01:34:41,902 INFO L130 BoogieDeclarations]: Found specification of procedure virtio_cread32 [2022-11-22 01:34:41,902 INFO L138 BoogieDeclarations]: Found implementation of procedure virtio_cread32 [2022-11-22 01:34:41,903 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~$Pointer$~X~int~TO~VOID [2022-11-22 01:34:41,903 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~$Pointer$~X~int~TO~VOID [2022-11-22 01:34:41,903 INFO L130 BoogieDeclarations]: Found specification of procedure destroy_workqueue [2022-11-22 01:34:41,903 INFO L138 BoogieDeclarations]: Found implementation of procedure destroy_workqueue [2022-11-22 01:34:41,903 INFO L130 BoogieDeclarations]: Found specification of procedure del_gendisk [2022-11-22 01:34:41,903 INFO L138 BoogieDeclarations]: Found implementation of procedure del_gendisk [2022-11-22 01:34:41,904 INFO L130 BoogieDeclarations]: Found specification of procedure device_create_file [2022-11-22 01:34:41,904 INFO L138 BoogieDeclarations]: Found implementation of procedure device_create_file [2022-11-22 01:34:41,904 INFO L130 BoogieDeclarations]: Found specification of procedure set_capacity [2022-11-22 01:34:41,904 INFO L138 BoogieDeclarations]: Found implementation of procedure set_capacity [2022-11-22 01:34:41,904 INFO L130 BoogieDeclarations]: Found specification of procedure virtio_cread16 [2022-11-22 01:34:41,904 INFO L138 BoogieDeclarations]: Found implementation of procedure virtio_cread16 [2022-11-22 01:34:41,905 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_sock_check_final_state [2022-11-22 01:34:41,905 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_sock_check_final_state [2022-11-22 01:34:41,905 INFO L130 BoogieDeclarations]: Found specification of procedure virtio_has_feature [2022-11-22 01:34:41,905 INFO L138 BoogieDeclarations]: Found implementation of procedure virtio_has_feature [2022-11-22 01:34:41,905 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_gadget_check_final_state [2022-11-22 01:34:41,905 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_gadget_check_final_state [2022-11-22 01:34:41,906 INFO L130 BoogieDeclarations]: Found specification of procedure virtio_cread64 [2022-11-22 01:34:41,906 INFO L138 BoogieDeclarations]: Found implementation of procedure virtio_cread64 [2022-11-22 01:34:41,906 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-22 01:34:41,906 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_fs_sysfs_check_final_state [2022-11-22 01:34:41,906 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_fs_sysfs_check_final_state [2022-11-22 01:34:41,906 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_block_request__double_get [2022-11-22 01:34:41,907 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_block_request__double_get [2022-11-22 01:34:41,907 INFO L130 BoogieDeclarations]: Found specification of procedure blk_mq_rq_to_pdu [2022-11-22 01:34:41,907 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_mq_rq_to_pdu [2022-11-22 01:34:41,907 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-22 01:34:41,907 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-22 01:34:41,907 INFO L130 BoogieDeclarations]: Found specification of procedure virtio32_to_cpu [2022-11-22 01:34:41,908 INFO L138 BoogieDeclarations]: Found implementation of procedure virtio32_to_cpu [2022-11-22 01:34:41,908 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_rtnetlink_check_final_state [2022-11-22 01:34:41,908 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_rtnetlink_check_final_state [2022-11-22 01:34:41,908 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-11-22 01:34:41,908 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-11-22 01:34:41,908 INFO L130 BoogieDeclarations]: Found specification of procedure blk_mq_start_stopped_hw_queues [2022-11-22 01:34:41,909 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_mq_start_stopped_hw_queues [2022-11-22 01:34:41,909 INFO L130 BoogieDeclarations]: Found specification of procedure blk_queue_max_segment_size [2022-11-22 01:34:41,909 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_queue_max_segment_size [2022-11-22 01:34:41,909 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_check_final_state [2022-11-22 01:34:41,909 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_check_final_state [2022-11-22 01:34:41,909 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_urb_check_final_state [2022-11-22 01:34:41,909 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_urb_check_final_state [2022-11-22 01:34:41,910 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_linux_kernel_locking_spinlock_spin_lock [2022-11-22 01:34:41,910 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_linux_kernel_locking_spinlock_spin_lock [2022-11-22 01:34:41,910 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_rwlock_check_final_state [2022-11-22 01:34:41,910 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_rwlock_check_final_state [2022-11-22 01:34:41,910 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-22 01:34:41,910 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-22 01:34:41,911 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-22 01:34:41,911 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_fs_char_dev_check_final_state [2022-11-22 01:34:41,911 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_fs_char_dev_check_final_state [2022-11-22 01:34:41,911 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-22 01:34:41,911 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-22 01:34:41,911 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_spinlock_spin_lock_lock_of_virtio_blk_vq [2022-11-22 01:34:41,912 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_spinlock_spin_lock_lock_of_virtio_blk_vq [2022-11-22 01:34:41,912 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_drivers_base_class_check_final_state [2022-11-22 01:34:41,912 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_drivers_base_class_check_final_state [2022-11-22 01:34:41,912 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2022-11-22 01:34:41,912 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2022-11-22 01:34:41,912 INFO L130 BoogieDeclarations]: Found specification of procedure queue_logical_block_size [2022-11-22 01:34:41,912 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_logical_block_size [2022-11-22 01:34:41,913 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-11-22 01:34:41,913 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-11-22 01:34:41,913 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_sched_check_final_state [2022-11-22 01:34:41,913 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_sched_check_final_state [2022-11-22 01:34:41,913 INFO L130 BoogieDeclarations]: Found specification of procedure put_disk [2022-11-22 01:34:41,913 INFO L138 BoogieDeclarations]: Found implementation of procedure put_disk [2022-11-22 01:34:41,914 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_genhd_put_disk [2022-11-22 01:34:41,914 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_genhd_put_disk [2022-11-22 01:34:41,914 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-22 01:34:41,914 INFO L130 BoogieDeclarations]: Found specification of procedure virtio_device_ready [2022-11-22 01:34:41,914 INFO L138 BoogieDeclarations]: Found implementation of procedure virtio_device_ready [2022-11-22 01:34:42,614 INFO L235 CfgBuilder]: Building ICFG [2022-11-22 01:34:42,621 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-22 01:34:43,079 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-22 01:34:45,120 INFO L276 CfgBuilder]: Performing block encoding [2022-11-22 01:34:45,680 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-22 01:34:45,680 INFO L300 CfgBuilder]: Removed 15 assume(true) statements. [2022-11-22 01:34:45,686 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:34:45 BoogieIcfgContainer [2022-11-22 01:34:45,686 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-22 01:34:45,690 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-22 01:34:45,691 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-22 01:34:45,694 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-22 01:34:45,694 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 01:34:36" (1/3) ... [2022-11-22 01:34:45,696 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14484174 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:34:45, skipping insertion in model container [2022-11-22 01:34:45,697 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:34:41" (2/3) ... [2022-11-22 01:34:45,698 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14484174 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:34:45, skipping insertion in model container [2022-11-22 01:34:45,698 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:34:45" (3/3) ... [2022-11-22 01:34:45,699 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i [2022-11-22 01:34:45,721 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-22 01:34:45,722 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 32 error locations. [2022-11-22 01:34:45,826 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-22 01:34:45,833 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@12bb1fc1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-22 01:34:45,834 INFO L358 AbstractCegarLoop]: Starting to check reachability of 32 error locations. [2022-11-22 01:34:45,845 INFO L276 IsEmpty]: Start isEmpty. Operand has 943 states, 561 states have (on average 1.3493761140819964) internal successors, (757), 602 states have internal predecessors, (757), 281 states have call successors, (281), 80 states have call predecessors, (281), 79 states have return successors, (278), 276 states have call predecessors, (278), 278 states have call successors, (278) [2022-11-22 01:34:45,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-11-22 01:34:45,864 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:34:45,865 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:34:45,866 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_linux_arch_io_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_block_queue_blk_cleanup_queueErr0ASSERT_VIOLATIONERROR_FUNCTION (and 30 more)] === [2022-11-22 01:34:45,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:34:45,874 INFO L85 PathProgramCache]: Analyzing trace with hash -1286415141, now seen corresponding path program 1 times [2022-11-22 01:34:45,885 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:34:45,885 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2000186000] [2022-11-22 01:34:45,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:34:45,886 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:34:46,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:34:46,675 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-22 01:34:46,679 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:34:46,680 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2000186000] [2022-11-22 01:34:46,681 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2000186000] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:34:46,684 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:34:46,685 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 01:34:46,687 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1179705530] [2022-11-22 01:34:46,689 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:34:46,697 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 01:34:46,698 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:34:46,757 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 01:34:46,759 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 01:34:46,765 INFO L87 Difference]: Start difference. First operand has 943 states, 561 states have (on average 1.3493761140819964) internal successors, (757), 602 states have internal predecessors, (757), 281 states have call successors, (281), 80 states have call predecessors, (281), 79 states have return successors, (278), 276 states have call predecessors, (278), 278 states have call successors, (278) Second operand has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-11-22 01:34:48,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:34:48,194 INFO L93 Difference]: Finished difference Result 1749 states and 2489 transitions. [2022-11-22 01:34:48,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 01:34:48,197 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 38 [2022-11-22 01:34:48,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:34:48,216 INFO L225 Difference]: With dead ends: 1749 [2022-11-22 01:34:48,216 INFO L226 Difference]: Without dead ends: 821 [2022-11-22 01:34:48,229 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-22 01:34:48,232 INFO L413 NwaCegarLoop]: 910 mSDtfsCounter, 1058 mSDsluCounter, 910 mSDsCounter, 0 mSdLazyCounter, 325 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1060 SdHoareTripleChecker+Valid, 1820 SdHoareTripleChecker+Invalid, 325 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 325 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-11-22 01:34:48,233 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1060 Valid, 1820 Invalid, 325 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 325 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-11-22 01:34:48,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 821 states. [2022-11-22 01:34:48,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 821 to 821. [2022-11-22 01:34:48,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 821 states, 476 states have (on average 1.2415966386554622) internal successors, (591), 525 states have internal predecessors, (591), 236 states have call successors, (236), 79 states have call predecessors, (236), 78 states have return successors, (234), 232 states have call predecessors, (234), 234 states have call successors, (234) [2022-11-22 01:34:48,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 821 states to 821 states and 1061 transitions. [2022-11-22 01:34:48,354 INFO L78 Accepts]: Start accepts. Automaton has 821 states and 1061 transitions. Word has length 38 [2022-11-22 01:34:48,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:34:48,356 INFO L495 AbstractCegarLoop]: Abstraction has 821 states and 1061 transitions. [2022-11-22 01:34:48,356 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-11-22 01:34:48,356 INFO L276 IsEmpty]: Start isEmpty. Operand 821 states and 1061 transitions. [2022-11-22 01:34:48,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-11-22 01:34:48,359 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:34:48,359 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:34:48,359 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-22 01:34:48,359 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_linux_block_genhd_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_block_queue_blk_cleanup_queueErr0ASSERT_VIOLATIONERROR_FUNCTION (and 30 more)] === [2022-11-22 01:34:48,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:34:48,360 INFO L85 PathProgramCache]: Analyzing trace with hash -767846097, now seen corresponding path program 1 times [2022-11-22 01:34:48,360 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:34:48,360 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [737715583] [2022-11-22 01:34:48,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:34:48,361 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:34:48,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:34:48,675 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-22 01:34:48,676 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:34:48,676 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [737715583] [2022-11-22 01:34:48,676 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [737715583] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:34:48,676 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:34:48,676 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 01:34:48,677 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1227442030] [2022-11-22 01:34:48,677 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:34:48,679 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 01:34:48,679 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:34:48,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 01:34:48,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 01:34:48,680 INFO L87 Difference]: Start difference. First operand 821 states and 1061 transitions. Second operand has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-11-22 01:34:50,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:34:50,405 INFO L93 Difference]: Finished difference Result 1487 states and 1916 transitions. [2022-11-22 01:34:50,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-22 01:34:50,406 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 43 [2022-11-22 01:34:50,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:34:50,415 INFO L225 Difference]: With dead ends: 1487 [2022-11-22 01:34:50,415 INFO L226 Difference]: Without dead ends: 1485 [2022-11-22 01:34:50,416 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-22 01:34:50,417 INFO L413 NwaCegarLoop]: 1172 mSDtfsCounter, 862 mSDsluCounter, 2041 mSDsCounter, 0 mSdLazyCounter, 537 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 864 SdHoareTripleChecker+Valid, 3213 SdHoareTripleChecker+Invalid, 539 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 537 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-11-22 01:34:50,418 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [864 Valid, 3213 Invalid, 539 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 537 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-11-22 01:34:50,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1485 states. [2022-11-22 01:34:50,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1485 to 1311. [2022-11-22 01:34:50,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1311 states, 760 states have (on average 1.236842105263158) internal successors, (940), 825 states have internal predecessors, (940), 388 states have call successors, (388), 133 states have call predecessors, (388), 132 states have return successors, (401), 381 states have call predecessors, (401), 386 states have call successors, (401) [2022-11-22 01:34:50,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1311 states to 1311 states and 1729 transitions. [2022-11-22 01:34:50,531 INFO L78 Accepts]: Start accepts. Automaton has 1311 states and 1729 transitions. Word has length 43 [2022-11-22 01:34:50,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:34:50,531 INFO L495 AbstractCegarLoop]: Abstraction has 1311 states and 1729 transitions. [2022-11-22 01:34:50,532 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-11-22 01:34:50,532 INFO L276 IsEmpty]: Start isEmpty. Operand 1311 states and 1729 transitions. [2022-11-22 01:34:50,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-11-22 01:34:50,541 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:34:50,542 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:34:50,542 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-22 01:34:50,542 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_linux_block_queue_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_block_queue_blk_cleanup_queueErr0ASSERT_VIOLATIONERROR_FUNCTION (and 30 more)] === [2022-11-22 01:34:50,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:34:50,552 INFO L85 PathProgramCache]: Analyzing trace with hash 840896797, now seen corresponding path program 1 times [2022-11-22 01:34:50,552 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:34:50,553 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [17183595] [2022-11-22 01:34:50,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:34:50,553 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:34:50,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:34:50,829 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-22 01:34:50,830 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:34:50,830 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [17183595] [2022-11-22 01:34:50,830 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [17183595] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:34:50,830 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:34:50,831 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 01:34:50,831 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1831825155] [2022-11-22 01:34:50,831 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:34:50,831 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 01:34:50,832 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:34:50,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 01:34:50,833 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 01:34:50,833 INFO L87 Difference]: Start difference. First operand 1311 states and 1729 transitions. Second operand has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-11-22 01:34:51,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:34:51,978 INFO L93 Difference]: Finished difference Result 1311 states and 1729 transitions. [2022-11-22 01:34:51,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 01:34:51,979 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 48 [2022-11-22 01:34:51,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:34:51,987 INFO L225 Difference]: With dead ends: 1311 [2022-11-22 01:34:51,987 INFO L226 Difference]: Without dead ends: 1309 [2022-11-22 01:34:51,989 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-22 01:34:51,990 INFO L413 NwaCegarLoop]: 895 mSDtfsCounter, 1040 mSDsluCounter, 895 mSDsCounter, 0 mSdLazyCounter, 325 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1042 SdHoareTripleChecker+Valid, 1790 SdHoareTripleChecker+Invalid, 326 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 325 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-22 01:34:51,990 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1042 Valid, 1790 Invalid, 326 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 325 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-11-22 01:34:51,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1309 states. [2022-11-22 01:34:52,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1309 to 1309. [2022-11-22 01:34:52,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1309 states, 759 states have (on average 1.2358366271409749) internal successors, (938), 823 states have internal predecessors, (938), 388 states have call successors, (388), 133 states have call predecessors, (388), 132 states have return successors, (401), 381 states have call predecessors, (401), 386 states have call successors, (401) [2022-11-22 01:34:52,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1309 states to 1309 states and 1727 transitions. [2022-11-22 01:34:52,109 INFO L78 Accepts]: Start accepts. Automaton has 1309 states and 1727 transitions. Word has length 48 [2022-11-22 01:34:52,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:34:52,111 INFO L495 AbstractCegarLoop]: Abstraction has 1309 states and 1727 transitions. [2022-11-22 01:34:52,111 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-11-22 01:34:52,112 INFO L276 IsEmpty]: Start isEmpty. Operand 1309 states and 1727 transitions. [2022-11-22 01:34:52,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-11-22 01:34:52,116 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:34:52,117 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:34:52,118 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-22 01:34:52,118 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_linux_block_request_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_block_queue_blk_cleanup_queueErr0ASSERT_VIOLATIONERROR_FUNCTION (and 30 more)] === [2022-11-22 01:34:52,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:34:52,119 INFO L85 PathProgramCache]: Analyzing trace with hash -1972611560, now seen corresponding path program 1 times [2022-11-22 01:34:52,119 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:34:52,119 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [659020578] [2022-11-22 01:34:52,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:34:52,119 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:34:52,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:34:52,395 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-22 01:34:52,395 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:34:52,396 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [659020578] [2022-11-22 01:34:52,396 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [659020578] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:34:52,396 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:34:52,396 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 01:34:52,396 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2054377474] [2022-11-22 01:34:52,397 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:34:52,397 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 01:34:52,397 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:34:52,398 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 01:34:52,398 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 01:34:52,398 INFO L87 Difference]: Start difference. First operand 1309 states and 1727 transitions. Second operand has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-11-22 01:34:54,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:34:54,003 INFO L93 Difference]: Finished difference Result 1725 states and 2203 transitions. [2022-11-22 01:34:54,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-22 01:34:54,004 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 53 [2022-11-22 01:34:54,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:34:54,018 INFO L225 Difference]: With dead ends: 1725 [2022-11-22 01:34:54,018 INFO L226 Difference]: Without dead ends: 1723 [2022-11-22 01:34:54,019 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-22 01:34:54,023 INFO L413 NwaCegarLoop]: 964 mSDtfsCounter, 1026 mSDsluCounter, 1222 mSDsCounter, 0 mSdLazyCounter, 379 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1028 SdHoareTripleChecker+Valid, 2186 SdHoareTripleChecker+Invalid, 381 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 379 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-11-22 01:34:54,025 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1028 Valid, 2186 Invalid, 381 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 379 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-11-22 01:34:54,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1723 states. [2022-11-22 01:34:54,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1723 to 1680. [2022-11-22 01:34:54,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1680 states, 972 states have (on average 1.228395061728395) internal successors, (1194), 1042 states have internal predecessors, (1194), 485 states have call successors, (485), 194 states have call predecessors, (485), 193 states have return successors, (498), 474 states have call predecessors, (498), 483 states have call successors, (498) [2022-11-22 01:34:54,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1680 states to 1680 states and 2177 transitions. [2022-11-22 01:34:54,185 INFO L78 Accepts]: Start accepts. Automaton has 1680 states and 2177 transitions. Word has length 53 [2022-11-22 01:34:54,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:34:54,186 INFO L495 AbstractCegarLoop]: Abstraction has 1680 states and 2177 transitions. [2022-11-22 01:34:54,187 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-11-22 01:34:54,187 INFO L276 IsEmpty]: Start isEmpty. Operand 1680 states and 2177 transitions. [2022-11-22 01:34:54,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-11-22 01:34:54,188 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:34:54,189 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:34:54,189 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-22 01:34:54,189 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_linux_drivers_base_class_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_block_queue_blk_cleanup_queueErr0ASSERT_VIOLATIONERROR_FUNCTION (and 30 more)] === [2022-11-22 01:34:54,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:34:54,190 INFO L85 PathProgramCache]: Analyzing trace with hash -327768910, now seen corresponding path program 1 times [2022-11-22 01:34:54,190 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:34:54,190 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1218849989] [2022-11-22 01:34:54,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:34:54,191 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:34:54,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:34:54,428 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-22 01:34:54,429 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:34:54,429 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1218849989] [2022-11-22 01:34:54,429 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1218849989] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:34:54,429 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:34:54,429 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 01:34:54,430 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [731064365] [2022-11-22 01:34:54,430 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:34:54,430 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 01:34:54,430 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:34:54,431 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 01:34:54,431 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 01:34:54,431 INFO L87 Difference]: Start difference. First operand 1680 states and 2177 transitions. Second operand has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-22 01:34:55,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:34:55,765 INFO L93 Difference]: Finished difference Result 1680 states and 2177 transitions. [2022-11-22 01:34:55,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 01:34:55,766 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 58 [2022-11-22 01:34:55,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:34:55,774 INFO L225 Difference]: With dead ends: 1680 [2022-11-22 01:34:55,774 INFO L226 Difference]: Without dead ends: 1678 [2022-11-22 01:34:55,775 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-22 01:34:55,776 INFO L413 NwaCegarLoop]: 894 mSDtfsCounter, 1037 mSDsluCounter, 894 mSDsCounter, 0 mSdLazyCounter, 323 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1039 SdHoareTripleChecker+Valid, 1788 SdHoareTripleChecker+Invalid, 323 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 323 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-22 01:34:55,777 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1039 Valid, 1788 Invalid, 323 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 323 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-22 01:34:55,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1678 states. [2022-11-22 01:34:55,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1678 to 1678. [2022-11-22 01:34:55,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1678 states, 971 states have (on average 1.2265705458290421) internal successors, (1191), 1040 states have internal predecessors, (1191), 485 states have call successors, (485), 194 states have call predecessors, (485), 193 states have return successors, (498), 474 states have call predecessors, (498), 483 states have call successors, (498) [2022-11-22 01:34:55,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1678 states to 1678 states and 2174 transitions. [2022-11-22 01:34:55,888 INFO L78 Accepts]: Start accepts. Automaton has 1678 states and 2174 transitions. Word has length 58 [2022-11-22 01:34:55,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:34:55,890 INFO L495 AbstractCegarLoop]: Abstraction has 1678 states and 2174 transitions. [2022-11-22 01:34:55,890 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-22 01:34:55,890 INFO L276 IsEmpty]: Start isEmpty. Operand 1678 states and 2174 transitions. [2022-11-22 01:34:55,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-11-22 01:34:55,892 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:34:55,892 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:34:55,892 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-22 01:34:55,894 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_linux_fs_char_dev_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_block_queue_blk_cleanup_queueErr0ASSERT_VIOLATIONERROR_FUNCTION (and 30 more)] === [2022-11-22 01:34:55,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:34:55,895 INFO L85 PathProgramCache]: Analyzing trace with hash -223452677, now seen corresponding path program 1 times [2022-11-22 01:34:55,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:34:55,895 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [124111433] [2022-11-22 01:34:55,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:34:55,895 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:34:55,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:34:56,135 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-22 01:34:56,135 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:34:56,135 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [124111433] [2022-11-22 01:34:56,135 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [124111433] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:34:56,136 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:34:56,136 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 01:34:56,136 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1833123027] [2022-11-22 01:34:56,136 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:34:56,138 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 01:34:56,138 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:34:56,138 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 01:34:56,138 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 01:34:56,139 INFO L87 Difference]: Start difference. First operand 1678 states and 2174 transitions. Second operand has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-22 01:34:57,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:34:57,334 INFO L93 Difference]: Finished difference Result 1678 states and 2174 transitions. [2022-11-22 01:34:57,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 01:34:57,335 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 63 [2022-11-22 01:34:57,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:34:57,344 INFO L225 Difference]: With dead ends: 1678 [2022-11-22 01:34:57,345 INFO L226 Difference]: Without dead ends: 1676 [2022-11-22 01:34:57,346 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-22 01:34:57,347 INFO L413 NwaCegarLoop]: 892 mSDtfsCounter, 1034 mSDsluCounter, 892 mSDsCounter, 0 mSdLazyCounter, 323 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1036 SdHoareTripleChecker+Valid, 1784 SdHoareTripleChecker+Invalid, 323 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 323 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-22 01:34:57,347 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1036 Valid, 1784 Invalid, 323 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 323 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-11-22 01:34:57,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1676 states. [2022-11-22 01:34:57,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1676 to 1676. [2022-11-22 01:34:57,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1676 states, 970 states have (on average 1.2247422680412372) internal successors, (1188), 1038 states have internal predecessors, (1188), 485 states have call successors, (485), 194 states have call predecessors, (485), 193 states have return successors, (498), 474 states have call predecessors, (498), 483 states have call successors, (498) [2022-11-22 01:34:57,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1676 states to 1676 states and 2171 transitions. [2022-11-22 01:34:57,511 INFO L78 Accepts]: Start accepts. Automaton has 1676 states and 2171 transitions. Word has length 63 [2022-11-22 01:34:57,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:34:57,511 INFO L495 AbstractCegarLoop]: Abstraction has 1676 states and 2171 transitions. [2022-11-22 01:34:57,512 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-22 01:34:57,512 INFO L276 IsEmpty]: Start isEmpty. Operand 1676 states and 2171 transitions. [2022-11-22 01:34:57,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-11-22 01:34:57,514 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:34:57,514 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:34:57,514 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-22 01:34:57,515 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_block_queue_blk_cleanup_queueErr0ASSERT_VIOLATIONERROR_FUNCTION (and 30 more)] === [2022-11-22 01:34:57,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:34:57,515 INFO L85 PathProgramCache]: Analyzing trace with hash -1075536400, now seen corresponding path program 1 times [2022-11-22 01:34:57,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:34:57,516 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [279322465] [2022-11-22 01:34:57,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:34:57,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:34:57,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:34:57,796 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-22 01:34:57,797 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:34:57,797 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [279322465] [2022-11-22 01:34:57,797 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [279322465] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:34:57,798 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:34:57,798 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 01:34:57,798 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2043192730] [2022-11-22 01:34:57,798 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:34:57,799 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 01:34:57,799 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:34:57,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 01:34:57,800 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 01:34:57,800 INFO L87 Difference]: Start difference. First operand 1676 states and 2171 transitions. Second operand has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-22 01:34:59,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:34:59,242 INFO L93 Difference]: Finished difference Result 1676 states and 2171 transitions. [2022-11-22 01:34:59,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 01:34:59,243 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 68 [2022-11-22 01:34:59,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:34:59,253 INFO L225 Difference]: With dead ends: 1676 [2022-11-22 01:34:59,253 INFO L226 Difference]: Without dead ends: 1674 [2022-11-22 01:34:59,255 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-22 01:34:59,256 INFO L413 NwaCegarLoop]: 890 mSDtfsCounter, 1031 mSDsluCounter, 890 mSDsCounter, 0 mSdLazyCounter, 323 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1033 SdHoareTripleChecker+Valid, 1780 SdHoareTripleChecker+Invalid, 323 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 323 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-22 01:34:59,256 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1033 Valid, 1780 Invalid, 323 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 323 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-22 01:34:59,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1674 states. [2022-11-22 01:34:59,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1674 to 1674. [2022-11-22 01:34:59,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1674 states, 969 states have (on average 1.2229102167182662) internal successors, (1185), 1036 states have internal predecessors, (1185), 485 states have call successors, (485), 194 states have call predecessors, (485), 193 states have return successors, (498), 474 states have call predecessors, (498), 483 states have call successors, (498) [2022-11-22 01:34:59,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1674 states to 1674 states and 2168 transitions. [2022-11-22 01:34:59,438 INFO L78 Accepts]: Start accepts. Automaton has 1674 states and 2168 transitions. Word has length 68 [2022-11-22 01:34:59,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:34:59,439 INFO L495 AbstractCegarLoop]: Abstraction has 1674 states and 2168 transitions. [2022-11-22 01:34:59,439 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-22 01:34:59,439 INFO L276 IsEmpty]: Start isEmpty. Operand 1674 states and 2168 transitions. [2022-11-22 01:34:59,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-11-22 01:34:59,443 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:34:59,443 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:34:59,443 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-22 01:34:59,444 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_linux_kernel_locking_rwlock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_block_queue_blk_cleanup_queueErr0ASSERT_VIOLATIONERROR_FUNCTION (and 30 more)] === [2022-11-22 01:34:59,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:34:59,444 INFO L85 PathProgramCache]: Analyzing trace with hash -1690475699, now seen corresponding path program 1 times [2022-11-22 01:34:59,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:34:59,445 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2089176365] [2022-11-22 01:34:59,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:34:59,445 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:34:59,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:34:59,840 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-22 01:34:59,840 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:34:59,840 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2089176365] [2022-11-22 01:34:59,841 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2089176365] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:34:59,842 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:34:59,842 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 01:34:59,843 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1308904808] [2022-11-22 01:34:59,843 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:34:59,843 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 01:34:59,843 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:34:59,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 01:34:59,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 01:34:59,845 INFO L87 Difference]: Start difference. First operand 1674 states and 2168 transitions. Second operand has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-22 01:35:01,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:35:01,113 INFO L93 Difference]: Finished difference Result 1674 states and 2168 transitions. [2022-11-22 01:35:01,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 01:35:01,114 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 73 [2022-11-22 01:35:01,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:35:01,125 INFO L225 Difference]: With dead ends: 1674 [2022-11-22 01:35:01,126 INFO L226 Difference]: Without dead ends: 1672 [2022-11-22 01:35:01,127 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-22 01:35:01,128 INFO L413 NwaCegarLoop]: 888 mSDtfsCounter, 1032 mSDsluCounter, 884 mSDsCounter, 0 mSdLazyCounter, 323 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1034 SdHoareTripleChecker+Valid, 1772 SdHoareTripleChecker+Invalid, 323 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 323 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-11-22 01:35:01,129 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1034 Valid, 1772 Invalid, 323 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 323 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-11-22 01:35:01,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1672 states. [2022-11-22 01:35:01,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1672 to 1672. [2022-11-22 01:35:01,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1672 states, 968 states have (on average 1.2210743801652892) internal successors, (1182), 1034 states have internal predecessors, (1182), 485 states have call successors, (485), 194 states have call predecessors, (485), 193 states have return successors, (498), 474 states have call predecessors, (498), 483 states have call successors, (498) [2022-11-22 01:35:01,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1672 states to 1672 states and 2165 transitions. [2022-11-22 01:35:01,279 INFO L78 Accepts]: Start accepts. Automaton has 1672 states and 2165 transitions. Word has length 73 [2022-11-22 01:35:01,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:35:01,280 INFO L495 AbstractCegarLoop]: Abstraction has 1672 states and 2165 transitions. [2022-11-22 01:35:01,280 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-22 01:35:01,281 INFO L276 IsEmpty]: Start isEmpty. Operand 1672 states and 2165 transitions. [2022-11-22 01:35:01,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-11-22 01:35:01,282 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:35:01,282 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:35:01,282 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-22 01:35:01,282 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_linux_kernel_locking_rwlock_check_final_stateErr1ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_block_queue_blk_cleanup_queueErr0ASSERT_VIOLATIONERROR_FUNCTION (and 30 more)] === [2022-11-22 01:35:01,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:35:01,283 INFO L85 PathProgramCache]: Analyzing trace with hash -1049363760, now seen corresponding path program 1 times [2022-11-22 01:35:01,283 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:35:01,283 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [872142676] [2022-11-22 01:35:01,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:35:01,284 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:35:01,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:35:01,516 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-22 01:35:01,516 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:35:01,517 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [872142676] [2022-11-22 01:35:01,517 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [872142676] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:35:01,517 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:35:01,517 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 01:35:01,518 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [184408647] [2022-11-22 01:35:01,518 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:35:01,519 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 01:35:01,519 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:35:01,520 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 01:35:01,520 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 01:35:01,521 INFO L87 Difference]: Start difference. First operand 1672 states and 2165 transitions. Second operand has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-22 01:35:02,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:35:02,844 INFO L93 Difference]: Finished difference Result 1672 states and 2165 transitions. [2022-11-22 01:35:02,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 01:35:02,845 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 75 [2022-11-22 01:35:02,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:35:02,854 INFO L225 Difference]: With dead ends: 1672 [2022-11-22 01:35:02,854 INFO L226 Difference]: Without dead ends: 1670 [2022-11-22 01:35:02,856 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-22 01:35:02,856 INFO L413 NwaCegarLoop]: 886 mSDtfsCounter, 1024 mSDsluCounter, 886 mSDsCounter, 0 mSdLazyCounter, 323 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1026 SdHoareTripleChecker+Valid, 1772 SdHoareTripleChecker+Invalid, 323 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 323 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-11-22 01:35:02,857 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1026 Valid, 1772 Invalid, 323 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 323 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-11-22 01:35:02,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1670 states. [2022-11-22 01:35:03,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1670 to 1670. [2022-11-22 01:35:03,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1670 states, 967 states have (on average 1.21923474663909) internal successors, (1179), 1032 states have internal predecessors, (1179), 485 states have call successors, (485), 194 states have call predecessors, (485), 193 states have return successors, (498), 474 states have call predecessors, (498), 483 states have call successors, (498) [2022-11-22 01:35:03,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1670 states to 1670 states and 2162 transitions. [2022-11-22 01:35:03,013 INFO L78 Accepts]: Start accepts. Automaton has 1670 states and 2162 transitions. Word has length 75 [2022-11-22 01:35:03,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:35:03,014 INFO L495 AbstractCegarLoop]: Abstraction has 1670 states and 2162 transitions. [2022-11-22 01:35:03,014 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-22 01:35:03,014 INFO L276 IsEmpty]: Start isEmpty. Operand 1670 states and 2162 transitions. [2022-11-22 01:35:03,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-11-22 01:35:03,021 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:35:03,022 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:35:03,022 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-22 01:35:03,022 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_linux_kernel_module_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_block_queue_blk_cleanup_queueErr0ASSERT_VIOLATIONERROR_FUNCTION (and 30 more)] === [2022-11-22 01:35:03,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:35:03,023 INFO L85 PathProgramCache]: Analyzing trace with hash 1817092006, now seen corresponding path program 1 times [2022-11-22 01:35:03,023 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:35:03,023 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1422131634] [2022-11-22 01:35:03,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:35:03,023 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:35:03,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:35:03,230 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-22 01:35:03,231 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:35:03,231 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1422131634] [2022-11-22 01:35:03,231 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1422131634] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:35:03,231 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:35:03,231 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 01:35:03,232 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [633927787] [2022-11-22 01:35:03,232 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:35:03,232 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 01:35:03,233 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:35:03,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 01:35:03,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 01:35:03,233 INFO L87 Difference]: Start difference. First operand 1670 states and 2162 transitions. Second operand has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-22 01:35:04,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:35:04,462 INFO L93 Difference]: Finished difference Result 1670 states and 2162 transitions. [2022-11-22 01:35:04,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 01:35:04,463 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 80 [2022-11-22 01:35:04,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:35:04,472 INFO L225 Difference]: With dead ends: 1670 [2022-11-22 01:35:04,473 INFO L226 Difference]: Without dead ends: 1668 [2022-11-22 01:35:04,474 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-22 01:35:04,475 INFO L413 NwaCegarLoop]: 884 mSDtfsCounter, 1023 mSDsluCounter, 884 mSDsCounter, 0 mSdLazyCounter, 323 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1025 SdHoareTripleChecker+Valid, 1768 SdHoareTripleChecker+Invalid, 323 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 323 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-11-22 01:35:04,475 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1025 Valid, 1768 Invalid, 323 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 323 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-11-22 01:35:04,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1668 states. [2022-11-22 01:35:04,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1668 to 1668. [2022-11-22 01:35:04,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1668 states, 966 states have (on average 1.2173913043478262) internal successors, (1176), 1030 states have internal predecessors, (1176), 485 states have call successors, (485), 194 states have call predecessors, (485), 193 states have return successors, (498), 474 states have call predecessors, (498), 483 states have call successors, (498) [2022-11-22 01:35:04,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1668 states to 1668 states and 2159 transitions. [2022-11-22 01:35:04,637 INFO L78 Accepts]: Start accepts. Automaton has 1668 states and 2159 transitions. Word has length 80 [2022-11-22 01:35:04,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:35:04,638 INFO L495 AbstractCegarLoop]: Abstraction has 1668 states and 2159 transitions. [2022-11-22 01:35:04,638 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-22 01:35:04,638 INFO L276 IsEmpty]: Start isEmpty. Operand 1668 states and 2159 transitions. [2022-11-22 01:35:04,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-11-22 01:35:04,641 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:35:04,641 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:35:04,641 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-22 01:35:04,641 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_linux_kernel_rcu_update_lock_bh_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_block_queue_blk_cleanup_queueErr0ASSERT_VIOLATIONERROR_FUNCTION (and 30 more)] === [2022-11-22 01:35:04,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:35:04,642 INFO L85 PathProgramCache]: Analyzing trace with hash -985708471, now seen corresponding path program 1 times [2022-11-22 01:35:04,642 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:35:04,642 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1610254240] [2022-11-22 01:35:04,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:35:04,643 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:35:04,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:35:04,851 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-22 01:35:04,851 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:35:04,852 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1610254240] [2022-11-22 01:35:04,852 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1610254240] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:35:04,852 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:35:04,852 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 01:35:04,852 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [78405643] [2022-11-22 01:35:04,853 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:35:04,853 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 01:35:04,853 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:35:04,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 01:35:04,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 01:35:04,854 INFO L87 Difference]: Start difference. First operand 1668 states and 2159 transitions. Second operand has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-11-22 01:35:05,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:35:05,781 INFO L93 Difference]: Finished difference Result 1668 states and 2159 transitions. [2022-11-22 01:35:05,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 01:35:05,782 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 85 [2022-11-22 01:35:05,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:35:05,792 INFO L225 Difference]: With dead ends: 1668 [2022-11-22 01:35:05,792 INFO L226 Difference]: Without dead ends: 1666 [2022-11-22 01:35:05,794 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-22 01:35:05,795 INFO L413 NwaCegarLoop]: 882 mSDtfsCounter, 1020 mSDsluCounter, 882 mSDsCounter, 0 mSdLazyCounter, 323 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1022 SdHoareTripleChecker+Valid, 1764 SdHoareTripleChecker+Invalid, 323 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 323 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-22 01:35:05,795 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1022 Valid, 1764 Invalid, 323 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 323 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-22 01:35:05,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1666 states. [2022-11-22 01:35:05,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1666 to 1666. [2022-11-22 01:35:06,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1666 states, 965 states have (on average 1.2155440414507772) internal successors, (1173), 1028 states have internal predecessors, (1173), 485 states have call successors, (485), 194 states have call predecessors, (485), 193 states have return successors, (498), 474 states have call predecessors, (498), 483 states have call successors, (498) [2022-11-22 01:35:06,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1666 states to 1666 states and 2156 transitions. [2022-11-22 01:35:06,025 INFO L78 Accepts]: Start accepts. Automaton has 1666 states and 2156 transitions. Word has length 85 [2022-11-22 01:35:06,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:35:06,026 INFO L495 AbstractCegarLoop]: Abstraction has 1666 states and 2156 transitions. [2022-11-22 01:35:06,027 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-11-22 01:35:06,027 INFO L276 IsEmpty]: Start isEmpty. Operand 1666 states and 2156 transitions. [2022-11-22 01:35:06,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-11-22 01:35:06,029 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:35:06,029 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:35:06,030 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-22 01:35:06,030 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_linux_kernel_rcu_update_lock_sched_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_block_queue_blk_cleanup_queueErr0ASSERT_VIOLATIONERROR_FUNCTION (and 30 more)] === [2022-11-22 01:35:06,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:35:06,031 INFO L85 PathProgramCache]: Analyzing trace with hash -133599614, now seen corresponding path program 1 times [2022-11-22 01:35:06,031 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:35:06,031 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1141590832] [2022-11-22 01:35:06,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:35:06,031 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:35:06,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:35:06,326 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-22 01:35:06,327 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:35:06,327 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1141590832] [2022-11-22 01:35:06,327 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1141590832] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:35:06,327 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:35:06,328 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 01:35:06,328 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [340537811] [2022-11-22 01:35:06,328 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:35:06,329 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 01:35:06,329 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:35:06,329 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 01:35:06,329 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 01:35:06,330 INFO L87 Difference]: Start difference. First operand 1666 states and 2156 transitions. Second operand has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-11-22 01:35:07,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:35:07,671 INFO L93 Difference]: Finished difference Result 1666 states and 2156 transitions. [2022-11-22 01:35:07,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 01:35:07,671 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 90 [2022-11-22 01:35:07,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:35:07,681 INFO L225 Difference]: With dead ends: 1666 [2022-11-22 01:35:07,681 INFO L226 Difference]: Without dead ends: 1664 [2022-11-22 01:35:07,682 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-22 01:35:07,683 INFO L413 NwaCegarLoop]: 880 mSDtfsCounter, 1017 mSDsluCounter, 880 mSDsCounter, 0 mSdLazyCounter, 323 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1019 SdHoareTripleChecker+Valid, 1760 SdHoareTripleChecker+Invalid, 323 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 323 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-22 01:35:07,683 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1019 Valid, 1760 Invalid, 323 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 323 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-22 01:35:07,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1664 states. [2022-11-22 01:35:07,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1664 to 1664. [2022-11-22 01:35:07,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1664 states, 964 states have (on average 1.2136929460580912) internal successors, (1170), 1026 states have internal predecessors, (1170), 485 states have call successors, (485), 194 states have call predecessors, (485), 193 states have return successors, (498), 474 states have call predecessors, (498), 483 states have call successors, (498) [2022-11-22 01:35:07,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1664 states to 1664 states and 2153 transitions. [2022-11-22 01:35:07,899 INFO L78 Accepts]: Start accepts. Automaton has 1664 states and 2153 transitions. Word has length 90 [2022-11-22 01:35:07,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:35:07,901 INFO L495 AbstractCegarLoop]: Abstraction has 1664 states and 2153 transitions. [2022-11-22 01:35:07,901 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-11-22 01:35:07,901 INFO L276 IsEmpty]: Start isEmpty. Operand 1664 states and 2153 transitions. [2022-11-22 01:35:07,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-11-22 01:35:07,903 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:35:07,904 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2022-11-22 01:35:07,904 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-22 01:35:07,904 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_block_queue_blk_cleanup_queueErr0ASSERT_VIOLATIONERROR_FUNCTION (and 30 more)] === [2022-11-22 01:35:07,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:35:07,905 INFO L85 PathProgramCache]: Analyzing trace with hash -1350265433, now seen corresponding path program 1 times [2022-11-22 01:35:07,905 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:35:07,905 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [677890245] [2022-11-22 01:35:07,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:35:07,905 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:35:08,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:35:08,816 INFO L134 CoverageAnalysis]: Checked inductivity of 191 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 191 trivial. 0 not checked. [2022-11-22 01:35:08,816 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:35:08,816 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [677890245] [2022-11-22 01:35:08,816 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [677890245] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:35:08,817 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:35:08,817 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-22 01:35:08,817 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [253844739] [2022-11-22 01:35:08,817 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:35:08,818 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-22 01:35:08,818 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:35:08,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-22 01:35:08,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-11-22 01:35:08,819 INFO L87 Difference]: Start difference. First operand 1664 states and 2153 transitions. Second operand has 7 states, 6 states have (on average 5.833333333333333) internal successors, (35), 6 states have internal predecessors, (35), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 3 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-22 01:35:12,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:35:12,916 INFO L93 Difference]: Finished difference Result 2077 states and 2836 transitions. [2022-11-22 01:35:12,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-22 01:35:12,917 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 5.833333333333333) internal successors, (35), 6 states have internal predecessors, (35), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 3 states have call predecessors, (14), 2 states have call successors, (14) Word has length 114 [2022-11-22 01:35:12,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:35:12,929 INFO L225 Difference]: With dead ends: 2077 [2022-11-22 01:35:12,929 INFO L226 Difference]: Without dead ends: 2075 [2022-11-22 01:35:12,931 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2022-11-22 01:35:12,932 INFO L413 NwaCegarLoop]: 1005 mSDtfsCounter, 1038 mSDsluCounter, 2793 mSDsCounter, 0 mSdLazyCounter, 2539 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1180 SdHoareTripleChecker+Valid, 3798 SdHoareTripleChecker+Invalid, 2580 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 2539 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2022-11-22 01:35:12,932 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1180 Valid, 3798 Invalid, 2580 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 2539 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2022-11-22 01:35:12,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2075 states. [2022-11-22 01:35:13,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2075 to 1662. [2022-11-22 01:35:13,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1662 states, 963 states have (on average 1.2118380062305296) internal successors, (1167), 1024 states have internal predecessors, (1167), 485 states have call successors, (485), 194 states have call predecessors, (485), 193 states have return successors, (498), 474 states have call predecessors, (498), 483 states have call successors, (498) [2022-11-22 01:35:13,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1662 states to 1662 states and 2150 transitions. [2022-11-22 01:35:13,191 INFO L78 Accepts]: Start accepts. Automaton has 1662 states and 2150 transitions. Word has length 114 [2022-11-22 01:35:13,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:35:13,192 INFO L495 AbstractCegarLoop]: Abstraction has 1662 states and 2150 transitions. [2022-11-22 01:35:13,192 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 5.833333333333333) internal successors, (35), 6 states have internal predecessors, (35), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 3 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-22 01:35:13,192 INFO L276 IsEmpty]: Start isEmpty. Operand 1662 states and 2150 transitions. [2022-11-22 01:35:13,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-11-22 01:35:13,194 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:35:13,194 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:35:13,195 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-22 01:35:13,195 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_block_queue_blk_cleanup_queueErr0ASSERT_VIOLATIONERROR_FUNCTION (and 30 more)] === [2022-11-22 01:35:13,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:35:13,196 INFO L85 PathProgramCache]: Analyzing trace with hash 1157235881, now seen corresponding path program 1 times [2022-11-22 01:35:13,196 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:35:13,196 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1167927388] [2022-11-22 01:35:13,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:35:13,196 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:35:13,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:35:13,415 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-22 01:35:13,415 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:35:13,415 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1167927388] [2022-11-22 01:35:13,416 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1167927388] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:35:13,416 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:35:13,416 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 01:35:13,416 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [317613462] [2022-11-22 01:35:13,416 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:35:13,417 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 01:35:13,417 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:35:13,417 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 01:35:13,417 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 01:35:13,418 INFO L87 Difference]: Start difference. First operand 1662 states and 2150 transitions. Second operand has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-22 01:35:14,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:35:14,369 INFO L93 Difference]: Finished difference Result 1662 states and 2150 transitions. [2022-11-22 01:35:14,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 01:35:14,369 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 95 [2022-11-22 01:35:14,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:35:14,379 INFO L225 Difference]: With dead ends: 1662 [2022-11-22 01:35:14,379 INFO L226 Difference]: Without dead ends: 1660 [2022-11-22 01:35:14,380 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-22 01:35:14,381 INFO L413 NwaCegarLoop]: 876 mSDtfsCounter, 1012 mSDsluCounter, 876 mSDsCounter, 0 mSdLazyCounter, 323 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1014 SdHoareTripleChecker+Valid, 1752 SdHoareTripleChecker+Invalid, 323 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 323 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-22 01:35:14,381 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1014 Valid, 1752 Invalid, 323 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 323 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-22 01:35:14,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1660 states. [2022-11-22 01:35:14,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1660 to 1660. [2022-11-22 01:35:14,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1660 states, 962 states have (on average 1.20997920997921) internal successors, (1164), 1022 states have internal predecessors, (1164), 485 states have call successors, (485), 194 states have call predecessors, (485), 193 states have return successors, (498), 474 states have call predecessors, (498), 483 states have call successors, (498) [2022-11-22 01:35:14,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1660 states to 1660 states and 2147 transitions. [2022-11-22 01:35:14,686 INFO L78 Accepts]: Start accepts. Automaton has 1660 states and 2147 transitions. Word has length 95 [2022-11-22 01:35:14,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:35:14,686 INFO L495 AbstractCegarLoop]: Abstraction has 1660 states and 2147 transitions. [2022-11-22 01:35:14,686 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-22 01:35:14,687 INFO L276 IsEmpty]: Start isEmpty. Operand 1660 states and 2147 transitions. [2022-11-22 01:35:14,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-11-22 01:35:14,689 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:35:14,689 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:35:14,689 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-22 01:35:14,689 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_check_alloc_flagsErr1ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_block_queue_blk_cleanup_queueErr0ASSERT_VIOLATIONERROR_FUNCTION (and 30 more)] === [2022-11-22 01:35:14,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:35:14,690 INFO L85 PathProgramCache]: Analyzing trace with hash 980716992, now seen corresponding path program 1 times [2022-11-22 01:35:14,690 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:35:14,690 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [503771971] [2022-11-22 01:35:14,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:35:14,691 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:35:14,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:35:14,876 INFO L134 CoverageAnalysis]: Checked inductivity of 191 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 191 trivial. 0 not checked. [2022-11-22 01:35:14,876 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:35:14,876 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [503771971] [2022-11-22 01:35:14,876 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [503771971] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:35:14,877 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:35:14,877 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 01:35:14,877 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [292774938] [2022-11-22 01:35:14,877 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:35:14,877 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:35:14,878 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:35:14,878 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:35:14,878 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:35:14,878 INFO L87 Difference]: Start difference. First operand 1660 states and 2147 transitions. Second operand has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-22 01:35:15,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:35:15,662 INFO L93 Difference]: Finished difference Result 3292 states and 4268 transitions. [2022-11-22 01:35:15,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:35:15,662 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 117 [2022-11-22 01:35:15,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:35:15,671 INFO L225 Difference]: With dead ends: 3292 [2022-11-22 01:35:15,671 INFO L226 Difference]: Without dead ends: 1654 [2022-11-22 01:35:15,676 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:35:15,677 INFO L413 NwaCegarLoop]: 872 mSDtfsCounter, 998 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 162 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 998 SdHoareTripleChecker+Valid, 872 SdHoareTripleChecker+Invalid, 162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 162 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-22 01:35:15,677 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [998 Valid, 872 Invalid, 162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 162 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-22 01:35:15,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1654 states. [2022-11-22 01:35:15,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1654 to 1654. [2022-11-22 01:35:15,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1654 states, 957 states have (on average 1.206896551724138) internal successors, (1155), 1016 states have internal predecessors, (1155), 485 states have call successors, (485), 194 states have call predecessors, (485), 193 states have return successors, (498), 474 states have call predecessors, (498), 483 states have call successors, (498) [2022-11-22 01:35:15,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1654 states to 1654 states and 2138 transitions. [2022-11-22 01:35:15,903 INFO L78 Accepts]: Start accepts. Automaton has 1654 states and 2138 transitions. Word has length 117 [2022-11-22 01:35:15,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:35:15,904 INFO L495 AbstractCegarLoop]: Abstraction has 1654 states and 2138 transitions. [2022-11-22 01:35:15,904 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-22 01:35:15,904 INFO L276 IsEmpty]: Start isEmpty. Operand 1654 states and 2138 transitions. [2022-11-22 01:35:15,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2022-11-22 01:35:15,907 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:35:15,907 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:35:15,907 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-22 01:35:15,908 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_linux_kernel_rcu_srcu_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_block_queue_blk_cleanup_queueErr0ASSERT_VIOLATIONERROR_FUNCTION (and 30 more)] === [2022-11-22 01:35:15,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:35:15,908 INFO L85 PathProgramCache]: Analyzing trace with hash 485634421, now seen corresponding path program 1 times [2022-11-22 01:35:15,908 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:35:15,909 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1738724903] [2022-11-22 01:35:15,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:35:15,909 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:35:15,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:35:16,091 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-22 01:35:16,091 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:35:16,091 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1738724903] [2022-11-22 01:35:16,091 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1738724903] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:35:16,092 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:35:16,092 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 01:35:16,092 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [405195044] [2022-11-22 01:35:16,092 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:35:16,093 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 01:35:16,093 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:35:16,093 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 01:35:16,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 01:35:16,094 INFO L87 Difference]: Start difference. First operand 1654 states and 2138 transitions. Second operand has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-22 01:35:17,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:35:17,059 INFO L93 Difference]: Finished difference Result 1654 states and 2138 transitions. [2022-11-22 01:35:17,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 01:35:17,062 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 100 [2022-11-22 01:35:17,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:35:17,071 INFO L225 Difference]: With dead ends: 1654 [2022-11-22 01:35:17,071 INFO L226 Difference]: Without dead ends: 1652 [2022-11-22 01:35:17,072 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-22 01:35:17,073 INFO L413 NwaCegarLoop]: 869 mSDtfsCounter, 1004 mSDsluCounter, 869 mSDsCounter, 0 mSdLazyCounter, 323 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1006 SdHoareTripleChecker+Valid, 1738 SdHoareTripleChecker+Invalid, 323 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 323 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-22 01:35:17,073 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1006 Valid, 1738 Invalid, 323 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 323 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-22 01:35:17,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1652 states. [2022-11-22 01:35:17,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1652 to 1652. [2022-11-22 01:35:17,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1652 states, 956 states have (on average 1.205020920502092) internal successors, (1152), 1014 states have internal predecessors, (1152), 485 states have call successors, (485), 194 states have call predecessors, (485), 193 states have return successors, (498), 474 states have call predecessors, (498), 483 states have call successors, (498) [2022-11-22 01:35:17,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1652 states to 1652 states and 2135 transitions. [2022-11-22 01:35:17,321 INFO L78 Accepts]: Start accepts. Automaton has 1652 states and 2135 transitions. Word has length 100 [2022-11-22 01:35:17,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:35:17,321 INFO L495 AbstractCegarLoop]: Abstraction has 1652 states and 2135 transitions. [2022-11-22 01:35:17,322 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-22 01:35:17,322 INFO L276 IsEmpty]: Start isEmpty. Operand 1652 states and 2135 transitions. [2022-11-22 01:35:17,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2022-11-22 01:35:17,325 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:35:17,325 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:35:17,326 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-22 01:35:17,326 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_assert_linux_block_request__double_getErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_block_queue_blk_cleanup_queueErr0ASSERT_VIOLATIONERROR_FUNCTION (and 30 more)] === [2022-11-22 01:35:17,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:35:17,326 INFO L85 PathProgramCache]: Analyzing trace with hash 1369745483, now seen corresponding path program 1 times [2022-11-22 01:35:17,327 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:35:17,327 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1564386114] [2022-11-22 01:35:17,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:35:17,327 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:35:17,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:35:17,611 INFO L134 CoverageAnalysis]: Checked inductivity of 165 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 165 trivial. 0 not checked. [2022-11-22 01:35:17,611 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:35:17,611 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1564386114] [2022-11-22 01:35:17,611 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1564386114] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:35:17,612 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:35:17,612 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-22 01:35:17,612 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [565259276] [2022-11-22 01:35:17,612 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:35:17,613 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 01:35:17,614 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:35:17,614 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 01:35:17,614 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-22 01:35:17,615 INFO L87 Difference]: Start difference. First operand 1652 states and 2135 transitions. Second operand has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-11-22 01:35:19,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:35:19,043 INFO L93 Difference]: Finished difference Result 1675 states and 2149 transitions. [2022-11-22 01:35:19,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-22 01:35:19,050 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 127 [2022-11-22 01:35:19,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:35:19,072 INFO L225 Difference]: With dead ends: 1675 [2022-11-22 01:35:19,078 INFO L226 Difference]: Without dead ends: 1673 [2022-11-22 01:35:19,079 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-22 01:35:19,080 INFO L413 NwaCegarLoop]: 934 mSDtfsCounter, 983 mSDsluCounter, 2105 mSDsCounter, 0 mSdLazyCounter, 549 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 984 SdHoareTripleChecker+Valid, 3039 SdHoareTripleChecker+Invalid, 551 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 549 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-11-22 01:35:19,080 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [984 Valid, 3039 Invalid, 551 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 549 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-11-22 01:35:19,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1673 states. [2022-11-22 01:35:19,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1673 to 1652. [2022-11-22 01:35:19,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1652 states, 956 states have (on average 1.202928870292887) internal successors, (1150), 1014 states have internal predecessors, (1150), 485 states have call successors, (485), 194 states have call predecessors, (485), 193 states have return successors, (498), 474 states have call predecessors, (498), 483 states have call successors, (498) [2022-11-22 01:35:19,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1652 states to 1652 states and 2133 transitions. [2022-11-22 01:35:19,289 INFO L78 Accepts]: Start accepts. Automaton has 1652 states and 2133 transitions. Word has length 127 [2022-11-22 01:35:19,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:35:19,290 INFO L495 AbstractCegarLoop]: Abstraction has 1652 states and 2133 transitions. [2022-11-22 01:35:19,290 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-11-22 01:35:19,290 INFO L276 IsEmpty]: Start isEmpty. Operand 1652 states and 2133 transitions. [2022-11-22 01:35:19,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2022-11-22 01:35:19,293 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:35:19,293 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:35:19,293 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-22 01:35:19,293 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_linux_lib_idr_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_block_queue_blk_cleanup_queueErr0ASSERT_VIOLATIONERROR_FUNCTION (and 30 more)] === [2022-11-22 01:35:19,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:35:19,294 INFO L85 PathProgramCache]: Analyzing trace with hash -299355369, now seen corresponding path program 1 times [2022-11-22 01:35:19,294 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:35:19,294 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1689823506] [2022-11-22 01:35:19,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:35:19,295 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:35:19,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:35:19,538 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-22 01:35:19,538 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:35:19,538 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1689823506] [2022-11-22 01:35:19,539 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1689823506] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:35:19,539 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:35:19,539 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 01:35:19,539 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1769502282] [2022-11-22 01:35:19,539 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:35:19,540 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 01:35:19,540 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:35:19,540 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 01:35:19,541 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 01:35:19,541 INFO L87 Difference]: Start difference. First operand 1652 states and 2133 transitions. Second operand has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-11-22 01:35:20,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:35:20,761 INFO L93 Difference]: Finished difference Result 1652 states and 2133 transitions. [2022-11-22 01:35:20,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 01:35:20,762 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 105 [2022-11-22 01:35:20,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:35:20,770 INFO L225 Difference]: With dead ends: 1652 [2022-11-22 01:35:20,770 INFO L226 Difference]: Without dead ends: 1650 [2022-11-22 01:35:20,771 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-22 01:35:20,772 INFO L413 NwaCegarLoop]: 867 mSDtfsCounter, 1001 mSDsluCounter, 867 mSDsCounter, 0 mSdLazyCounter, 323 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1003 SdHoareTripleChecker+Valid, 1734 SdHoareTripleChecker+Invalid, 323 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 323 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-22 01:35:20,772 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1003 Valid, 1734 Invalid, 323 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 323 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-11-22 01:35:20,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1650 states. [2022-11-22 01:35:21,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1650 to 1650. [2022-11-22 01:35:21,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1650 states, 955 states have (on average 1.2010471204188482) internal successors, (1147), 1012 states have internal predecessors, (1147), 485 states have call successors, (485), 194 states have call predecessors, (485), 193 states have return successors, (498), 474 states have call predecessors, (498), 483 states have call successors, (498) [2022-11-22 01:35:21,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1650 states to 1650 states and 2130 transitions. [2022-11-22 01:35:21,033 INFO L78 Accepts]: Start accepts. Automaton has 1650 states and 2130 transitions. Word has length 105 [2022-11-22 01:35:21,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:35:21,034 INFO L495 AbstractCegarLoop]: Abstraction has 1650 states and 2130 transitions. [2022-11-22 01:35:21,034 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-11-22 01:35:21,034 INFO L276 IsEmpty]: Start isEmpty. Operand 1650 states and 2130 transitions. [2022-11-22 01:35:21,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2022-11-22 01:35:21,037 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:35:21,037 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:35:21,037 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-22 01:35:21,038 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_block_queue_blk_cleanup_queueErr0ASSERT_VIOLATIONERROR_FUNCTION (and 30 more)] === [2022-11-22 01:35:21,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:35:21,038 INFO L85 PathProgramCache]: Analyzing trace with hash -1359241489, now seen corresponding path program 1 times [2022-11-22 01:35:21,038 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:35:21,039 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1031216552] [2022-11-22 01:35:21,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:35:21,039 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:35:21,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:35:21,508 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2022-11-22 01:35:21,508 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:35:21,508 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1031216552] [2022-11-22 01:35:21,509 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1031216552] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:35:21,509 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:35:21,509 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-22 01:35:21,509 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [727937942] [2022-11-22 01:35:21,509 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:35:21,511 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 01:35:21,512 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:35:21,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 01:35:21,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-22 01:35:21,513 INFO L87 Difference]: Start difference. First operand 1650 states and 2130 transitions. Second operand has 5 states, 5 states have (on average 8.2) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-11-22 01:35:23,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:35:23,462 INFO L93 Difference]: Finished difference Result 1694 states and 2172 transitions. [2022-11-22 01:35:23,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-22 01:35:23,462 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 131 [2022-11-22 01:35:23,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:35:23,491 INFO L225 Difference]: With dead ends: 1694 [2022-11-22 01:35:23,491 INFO L226 Difference]: Without dead ends: 1692 [2022-11-22 01:35:23,493 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-22 01:35:23,494 INFO L413 NwaCegarLoop]: 868 mSDtfsCounter, 951 mSDsluCounter, 1779 mSDsCounter, 0 mSdLazyCounter, 503 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 952 SdHoareTripleChecker+Valid, 2647 SdHoareTripleChecker+Invalid, 504 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 503 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-11-22 01:35:23,494 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [952 Valid, 2647 Invalid, 504 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 503 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-11-22 01:35:23,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1692 states. [2022-11-22 01:35:23,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1692 to 1692. [2022-11-22 01:35:23,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1692 states, 978 states have (on average 1.196319018404908) internal successors, (1170), 1034 states have internal predecessors, (1170), 493 states have call successors, (493), 206 states have call predecessors, (493), 205 states have return successors, (506), 482 states have call predecessors, (506), 491 states have call successors, (506) [2022-11-22 01:35:23,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1692 states to 1692 states and 2169 transitions. [2022-11-22 01:35:23,739 INFO L78 Accepts]: Start accepts. Automaton has 1692 states and 2169 transitions. Word has length 131 [2022-11-22 01:35:23,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:35:23,740 INFO L495 AbstractCegarLoop]: Abstraction has 1692 states and 2169 transitions. [2022-11-22 01:35:23,740 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-11-22 01:35:23,740 INFO L276 IsEmpty]: Start isEmpty. Operand 1692 states and 2169 transitions. [2022-11-22 01:35:23,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-11-22 01:35:23,744 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:35:23,744 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:35:23,745 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-11-22 01:35:23,745 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ldv_linux_block_genhd_del_gendiskErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_block_queue_blk_cleanup_queueErr0ASSERT_VIOLATIONERROR_FUNCTION (and 30 more)] === [2022-11-22 01:35:23,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:35:23,745 INFO L85 PathProgramCache]: Analyzing trace with hash 941996136, now seen corresponding path program 1 times [2022-11-22 01:35:23,746 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:35:23,746 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [233677051] [2022-11-22 01:35:23,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:35:23,746 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:35:23,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:35:24,518 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 242 trivial. 0 not checked. [2022-11-22 01:35:24,518 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:35:24,519 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [233677051] [2022-11-22 01:35:24,519 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [233677051] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:35:24,519 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:35:24,519 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-22 01:35:24,519 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1392272951] [2022-11-22 01:35:24,520 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:35:24,521 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-22 01:35:24,521 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:35:24,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-22 01:35:24,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-11-22 01:35:24,522 INFO L87 Difference]: Start difference. First operand 1692 states and 2169 transitions. Second operand has 10 states, 7 states have (on average 6.285714285714286) internal successors, (44), 9 states have internal predecessors, (44), 5 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (17), 5 states have call predecessors, (17), 5 states have call successors, (17) [2022-11-22 01:35:31,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:35:31,464 INFO L93 Difference]: Finished difference Result 4346 states and 5897 transitions. [2022-11-22 01:35:31,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-22 01:35:31,464 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 7 states have (on average 6.285714285714286) internal successors, (44), 9 states have internal predecessors, (44), 5 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (17), 5 states have call predecessors, (17), 5 states have call successors, (17) Word has length 134 [2022-11-22 01:35:31,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:35:31,478 INFO L225 Difference]: With dead ends: 4346 [2022-11-22 01:35:31,479 INFO L226 Difference]: Without dead ends: 2674 [2022-11-22 01:35:31,486 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=191, Unknown=0, NotChecked=0, Total=240 [2022-11-22 01:35:31,487 INFO L413 NwaCegarLoop]: 1473 mSDtfsCounter, 452 mSDsluCounter, 10888 mSDsCounter, 0 mSdLazyCounter, 2208 mSolverCounterSat, 339 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 579 SdHoareTripleChecker+Valid, 12361 SdHoareTripleChecker+Invalid, 2547 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 339 IncrementalHoareTripleChecker+Valid, 2208 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2022-11-22 01:35:31,487 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [579 Valid, 12361 Invalid, 2547 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [339 Valid, 2208 Invalid, 0 Unknown, 0 Unchecked, 6.2s Time] [2022-11-22 01:35:31,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2674 states. [2022-11-22 01:35:31,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2674 to 1704. [2022-11-22 01:35:31,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1704 states, 986 states have (on average 1.1947261663286004) internal successors, (1178), 1042 states have internal predecessors, (1178), 497 states have call successors, (497), 206 states have call predecessors, (497), 205 states have return successors, (510), 486 states have call predecessors, (510), 495 states have call successors, (510) [2022-11-22 01:35:31,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1704 states to 1704 states and 2185 transitions. [2022-11-22 01:35:31,905 INFO L78 Accepts]: Start accepts. Automaton has 1704 states and 2185 transitions. Word has length 134 [2022-11-22 01:35:31,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:35:31,906 INFO L495 AbstractCegarLoop]: Abstraction has 1704 states and 2185 transitions. [2022-11-22 01:35:31,906 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 7 states have (on average 6.285714285714286) internal successors, (44), 9 states have internal predecessors, (44), 5 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (17), 5 states have call predecessors, (17), 5 states have call successors, (17) [2022-11-22 01:35:31,906 INFO L276 IsEmpty]: Start isEmpty. Operand 1704 states and 2185 transitions. [2022-11-22 01:35:31,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-11-22 01:35:31,909 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:35:31,909 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:35:31,910 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-11-22 01:35:31,910 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ldv_linux_mmc_sdio_func_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_block_queue_blk_cleanup_queueErr0ASSERT_VIOLATIONERROR_FUNCTION (and 30 more)] === [2022-11-22 01:35:31,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:35:31,911 INFO L85 PathProgramCache]: Analyzing trace with hash 1427166701, now seen corresponding path program 1 times [2022-11-22 01:35:31,911 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:35:31,911 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1229583143] [2022-11-22 01:35:31,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:35:31,911 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:35:31,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:35:32,432 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-22 01:35:32,432 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:35:32,433 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1229583143] [2022-11-22 01:35:32,433 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1229583143] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:35:32,433 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:35:32,433 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 01:35:32,433 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1770713452] [2022-11-22 01:35:32,434 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:35:32,435 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 01:35:32,435 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:35:32,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 01:35:32,436 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 01:35:32,436 INFO L87 Difference]: Start difference. First operand 1704 states and 2185 transitions. Second operand has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-11-22 01:35:33,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:35:33,765 INFO L93 Difference]: Finished difference Result 1704 states and 2185 transitions. [2022-11-22 01:35:33,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 01:35:33,766 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 110 [2022-11-22 01:35:33,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:35:33,773 INFO L225 Difference]: With dead ends: 1704 [2022-11-22 01:35:33,774 INFO L226 Difference]: Without dead ends: 1702 [2022-11-22 01:35:33,775 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-22 01:35:33,776 INFO L413 NwaCegarLoop]: 863 mSDtfsCounter, 996 mSDsluCounter, 863 mSDsCounter, 0 mSdLazyCounter, 323 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 998 SdHoareTripleChecker+Valid, 1726 SdHoareTripleChecker+Invalid, 323 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 323 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-22 01:35:33,776 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [998 Valid, 1726 Invalid, 323 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 323 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-11-22 01:35:33,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1702 states. [2022-11-22 01:35:34,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1702 to 1702. [2022-11-22 01:35:34,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1702 states, 985 states have (on average 1.1928934010152283) internal successors, (1175), 1040 states have internal predecessors, (1175), 497 states have call successors, (497), 206 states have call predecessors, (497), 205 states have return successors, (510), 486 states have call predecessors, (510), 495 states have call successors, (510) [2022-11-22 01:35:34,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1702 states to 1702 states and 2182 transitions. [2022-11-22 01:35:34,117 INFO L78 Accepts]: Start accepts. Automaton has 1702 states and 2182 transitions. Word has length 110 [2022-11-22 01:35:34,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:35:34,117 INFO L495 AbstractCegarLoop]: Abstraction has 1702 states and 2182 transitions. [2022-11-22 01:35:34,118 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-11-22 01:35:34,118 INFO L276 IsEmpty]: Start isEmpty. Operand 1702 states and 2182 transitions. [2022-11-22 01:35:34,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2022-11-22 01:35:34,123 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:35:34,123 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:35:34,123 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-11-22 01:35:34,124 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ldv_linux_block_genhd_del_gendiskErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_block_queue_blk_cleanup_queueErr0ASSERT_VIOLATIONERROR_FUNCTION (and 30 more)] === [2022-11-22 01:35:34,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:35:34,124 INFO L85 PathProgramCache]: Analyzing trace with hash 282484226, now seen corresponding path program 1 times [2022-11-22 01:35:34,125 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:35:34,125 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2018678390] [2022-11-22 01:35:34,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:35:34,125 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:35:34,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:35:34,922 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 242 trivial. 0 not checked. [2022-11-22 01:35:34,922 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:35:34,922 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2018678390] [2022-11-22 01:35:34,922 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2018678390] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:35:34,923 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:35:34,923 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-22 01:35:34,923 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [309403891] [2022-11-22 01:35:34,923 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:35:34,924 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-22 01:35:34,924 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:35:34,924 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-22 01:35:34,924 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2022-11-22 01:35:34,925 INFO L87 Difference]: Start difference. First operand 1702 states and 2182 transitions. Second operand has 11 states, 8 states have (on average 5.75) internal successors, (46), 10 states have internal predecessors, (46), 5 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (17), 5 states have call predecessors, (17), 5 states have call successors, (17) [2022-11-22 01:35:41,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:35:41,766 INFO L93 Difference]: Finished difference Result 4237 states and 5734 transitions. [2022-11-22 01:35:41,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-22 01:35:41,767 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 8 states have (on average 5.75) internal successors, (46), 10 states have internal predecessors, (46), 5 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (17), 5 states have call predecessors, (17), 5 states have call successors, (17) Word has length 136 [2022-11-22 01:35:41,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:35:41,778 INFO L225 Difference]: With dead ends: 4237 [2022-11-22 01:35:41,778 INFO L226 Difference]: Without dead ends: 2555 [2022-11-22 01:35:41,785 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=78, Invalid=302, Unknown=0, NotChecked=0, Total=380 [2022-11-22 01:35:41,785 INFO L413 NwaCegarLoop]: 1409 mSDtfsCounter, 584 mSDsluCounter, 11436 mSDsCounter, 0 mSdLazyCounter, 2458 mSolverCounterSat, 690 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 590 SdHoareTripleChecker+Valid, 12845 SdHoareTripleChecker+Invalid, 3148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 690 IncrementalHoareTripleChecker+Valid, 2458 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2022-11-22 01:35:41,786 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [590 Valid, 12845 Invalid, 3148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [690 Valid, 2458 Invalid, 0 Unknown, 0 Unchecked, 6.0s Time] [2022-11-22 01:35:41,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2555 states. [2022-11-22 01:35:42,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2555 to 1721. [2022-11-22 01:35:42,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1721 states, 994 states have (on average 1.1911468812877264) internal successors, (1184), 1048 states have internal predecessors, (1184), 507 states have call successors, (507), 206 states have call predecessors, (507), 205 states have return successors, (523), 497 states have call predecessors, (523), 505 states have call successors, (523) [2022-11-22 01:35:42,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1721 states to 1721 states and 2214 transitions. [2022-11-22 01:35:42,095 INFO L78 Accepts]: Start accepts. Automaton has 1721 states and 2214 transitions. Word has length 136 [2022-11-22 01:35:42,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:35:42,096 INFO L495 AbstractCegarLoop]: Abstraction has 1721 states and 2214 transitions. [2022-11-22 01:35:42,096 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 8 states have (on average 5.75) internal successors, (46), 10 states have internal predecessors, (46), 5 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (17), 5 states have call predecessors, (17), 5 states have call successors, (17) [2022-11-22 01:35:42,096 INFO L276 IsEmpty]: Start isEmpty. Operand 1721 states and 2214 transitions. [2022-11-22 01:35:42,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2022-11-22 01:35:42,098 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:35:42,099 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:35:42,099 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-11-22 01:35:42,099 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ldv_linux_net_rtnetlink_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_block_queue_blk_cleanup_queueErr0ASSERT_VIOLATIONERROR_FUNCTION (and 30 more)] === [2022-11-22 01:35:42,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:35:42,100 INFO L85 PathProgramCache]: Analyzing trace with hash 2113001866, now seen corresponding path program 1 times [2022-11-22 01:35:42,100 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:35:42,100 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [33303500] [2022-11-22 01:35:42,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:35:42,101 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:35:42,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:35:42,289 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-22 01:35:42,290 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:35:42,290 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [33303500] [2022-11-22 01:35:42,290 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [33303500] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:35:42,290 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:35:42,290 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 01:35:42,290 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1686982835] [2022-11-22 01:35:42,291 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:35:42,291 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 01:35:42,291 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:35:42,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 01:35:42,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 01:35:42,292 INFO L87 Difference]: Start difference. First operand 1721 states and 2214 transitions. Second operand has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-11-22 01:35:43,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:35:43,298 INFO L93 Difference]: Finished difference Result 1721 states and 2214 transitions. [2022-11-22 01:35:43,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 01:35:43,299 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 115 [2022-11-22 01:35:43,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:35:43,309 INFO L225 Difference]: With dead ends: 1721 [2022-11-22 01:35:43,309 INFO L226 Difference]: Without dead ends: 1719 [2022-11-22 01:35:43,310 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-22 01:35:43,311 INFO L413 NwaCegarLoop]: 861 mSDtfsCounter, 993 mSDsluCounter, 861 mSDsCounter, 0 mSdLazyCounter, 323 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 995 SdHoareTripleChecker+Valid, 1722 SdHoareTripleChecker+Invalid, 323 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 323 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-22 01:35:43,311 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [995 Valid, 1722 Invalid, 323 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 323 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-22 01:35:43,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1719 states. [2022-11-22 01:35:43,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1719 to 1719. [2022-11-22 01:35:43,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1719 states, 993 states have (on average 1.18932527693857) internal successors, (1181), 1046 states have internal predecessors, (1181), 507 states have call successors, (507), 206 states have call predecessors, (507), 205 states have return successors, (523), 497 states have call predecessors, (523), 505 states have call successors, (523) [2022-11-22 01:35:43,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1719 states to 1719 states and 2211 transitions. [2022-11-22 01:35:43,708 INFO L78 Accepts]: Start accepts. Automaton has 1719 states and 2211 transitions. Word has length 115 [2022-11-22 01:35:43,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:35:43,708 INFO L495 AbstractCegarLoop]: Abstraction has 1719 states and 2211 transitions. [2022-11-22 01:35:43,710 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-11-22 01:35:43,710 INFO L276 IsEmpty]: Start isEmpty. Operand 1719 states and 2211 transitions. [2022-11-22 01:35:43,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2022-11-22 01:35:43,713 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:35:43,714 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:35:43,714 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-11-22 01:35:43,714 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ldv_linux_net_sock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_block_queue_blk_cleanup_queueErr0ASSERT_VIOLATIONERROR_FUNCTION (and 30 more)] === [2022-11-22 01:35:43,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:35:43,715 INFO L85 PathProgramCache]: Analyzing trace with hash -1924094184, now seen corresponding path program 1 times [2022-11-22 01:35:43,715 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:35:43,715 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1081188456] [2022-11-22 01:35:43,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:35:43,715 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:35:43,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:35:43,897 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-22 01:35:43,897 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:35:43,898 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1081188456] [2022-11-22 01:35:43,898 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1081188456] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:35:43,898 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:35:43,898 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 01:35:43,899 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1097448071] [2022-11-22 01:35:43,899 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:35:43,899 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 01:35:43,899 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:35:43,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 01:35:43,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 01:35:43,900 INFO L87 Difference]: Start difference. First operand 1719 states and 2211 transitions. Second operand has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-11-22 01:35:45,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:35:45,208 INFO L93 Difference]: Finished difference Result 1719 states and 2211 transitions. [2022-11-22 01:35:45,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 01:35:45,209 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 120 [2022-11-22 01:35:45,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:35:45,214 INFO L225 Difference]: With dead ends: 1719 [2022-11-22 01:35:45,215 INFO L226 Difference]: Without dead ends: 1717 [2022-11-22 01:35:45,216 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-22 01:35:45,216 INFO L413 NwaCegarLoop]: 859 mSDtfsCounter, 990 mSDsluCounter, 859 mSDsCounter, 0 mSdLazyCounter, 323 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 992 SdHoareTripleChecker+Valid, 1718 SdHoareTripleChecker+Invalid, 323 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 323 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-22 01:35:45,217 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [992 Valid, 1718 Invalid, 323 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 323 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-11-22 01:35:45,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1717 states. [2022-11-22 01:35:45,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1717 to 1717. [2022-11-22 01:35:45,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1717 states, 992 states have (on average 1.1875) internal successors, (1178), 1044 states have internal predecessors, (1178), 507 states have call successors, (507), 206 states have call predecessors, (507), 205 states have return successors, (523), 497 states have call predecessors, (523), 505 states have call successors, (523) [2022-11-22 01:35:45,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1717 states to 1717 states and 2208 transitions. [2022-11-22 01:35:45,515 INFO L78 Accepts]: Start accepts. Automaton has 1717 states and 2208 transitions. Word has length 120 [2022-11-22 01:35:45,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:35:45,516 INFO L495 AbstractCegarLoop]: Abstraction has 1717 states and 2208 transitions. [2022-11-22 01:35:45,516 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-11-22 01:35:45,517 INFO L276 IsEmpty]: Start isEmpty. Operand 1717 states and 2208 transitions. [2022-11-22 01:35:45,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2022-11-22 01:35:45,519 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:35:45,519 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:35:45,520 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-11-22 01:35:45,520 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_block_queue_blk_cleanup_queueErr0ASSERT_VIOLATIONERROR_FUNCTION (and 30 more)] === [2022-11-22 01:35:45,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:35:45,521 INFO L85 PathProgramCache]: Analyzing trace with hash -736849666, now seen corresponding path program 1 times [2022-11-22 01:35:45,521 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:35:45,521 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1682711228] [2022-11-22 01:35:45,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:35:45,522 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:35:45,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:35:45,732 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-22 01:35:45,733 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:35:45,733 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1682711228] [2022-11-22 01:35:45,733 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1682711228] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:35:45,733 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:35:45,734 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 01:35:45,734 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [433799742] [2022-11-22 01:35:45,734 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:35:45,734 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 01:35:45,735 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:35:45,735 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 01:35:45,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 01:35:45,736 INFO L87 Difference]: Start difference. First operand 1717 states and 2208 transitions. Second operand has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2022-11-22 01:35:47,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:35:47,068 INFO L93 Difference]: Finished difference Result 1717 states and 2208 transitions. [2022-11-22 01:35:47,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 01:35:47,069 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 125 [2022-11-22 01:35:47,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:35:47,073 INFO L225 Difference]: With dead ends: 1717 [2022-11-22 01:35:47,073 INFO L226 Difference]: Without dead ends: 1715 [2022-11-22 01:35:47,074 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-22 01:35:47,074 INFO L413 NwaCegarLoop]: 857 mSDtfsCounter, 987 mSDsluCounter, 857 mSDsCounter, 0 mSdLazyCounter, 323 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 989 SdHoareTripleChecker+Valid, 1714 SdHoareTripleChecker+Invalid, 323 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 323 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-22 01:35:47,075 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [989 Valid, 1714 Invalid, 323 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 323 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-11-22 01:35:47,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1715 states. [2022-11-22 01:35:47,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1715 to 1715. [2022-11-22 01:35:47,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1715 states, 991 states have (on average 1.1856710393541876) internal successors, (1175), 1042 states have internal predecessors, (1175), 507 states have call successors, (507), 206 states have call predecessors, (507), 205 states have return successors, (523), 497 states have call predecessors, (523), 505 states have call successors, (523) [2022-11-22 01:35:47,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1715 states to 1715 states and 2205 transitions. [2022-11-22 01:35:47,374 INFO L78 Accepts]: Start accepts. Automaton has 1715 states and 2205 transitions. Word has length 125 [2022-11-22 01:35:47,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:35:47,374 INFO L495 AbstractCegarLoop]: Abstraction has 1715 states and 2205 transitions. [2022-11-22 01:35:47,375 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2022-11-22 01:35:47,375 INFO L276 IsEmpty]: Start isEmpty. Operand 1715 states and 2205 transitions. [2022-11-22 01:35:47,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-11-22 01:35:47,377 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:35:47,377 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:35:47,377 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-11-22 01:35:47,378 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_block_queue_blk_cleanup_queueErr0ASSERT_VIOLATIONERROR_FUNCTION (and 30 more)] === [2022-11-22 01:35:47,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:35:47,378 INFO L85 PathProgramCache]: Analyzing trace with hash -776639370, now seen corresponding path program 1 times [2022-11-22 01:35:47,378 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:35:47,379 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2006201066] [2022-11-22 01:35:47,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:35:47,379 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:35:47,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:35:47,564 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-22 01:35:47,565 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:35:47,565 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2006201066] [2022-11-22 01:35:47,565 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2006201066] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:35:47,565 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:35:47,565 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 01:35:47,565 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1754073005] [2022-11-22 01:35:47,566 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:35:47,566 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 01:35:47,567 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:35:47,567 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 01:35:47,567 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 01:35:47,568 INFO L87 Difference]: Start difference. First operand 1715 states and 2205 transitions. Second operand has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2022-11-22 01:35:49,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:35:49,107 INFO L93 Difference]: Finished difference Result 1715 states and 2205 transitions. [2022-11-22 01:35:49,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 01:35:49,108 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 130 [2022-11-22 01:35:49,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:35:49,114 INFO L225 Difference]: With dead ends: 1715 [2022-11-22 01:35:49,114 INFO L226 Difference]: Without dead ends: 1713 [2022-11-22 01:35:49,116 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-22 01:35:49,116 INFO L413 NwaCegarLoop]: 855 mSDtfsCounter, 984 mSDsluCounter, 855 mSDsCounter, 0 mSdLazyCounter, 323 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 986 SdHoareTripleChecker+Valid, 1710 SdHoareTripleChecker+Invalid, 323 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 323 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-11-22 01:35:49,117 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [986 Valid, 1710 Invalid, 323 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 323 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-11-22 01:35:49,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1713 states. [2022-11-22 01:35:49,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1713 to 1713. [2022-11-22 01:35:49,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1713 states, 990 states have (on average 1.183838383838384) internal successors, (1172), 1040 states have internal predecessors, (1172), 507 states have call successors, (507), 206 states have call predecessors, (507), 205 states have return successors, (523), 497 states have call predecessors, (523), 505 states have call successors, (523) [2022-11-22 01:35:49,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1713 states to 1713 states and 2202 transitions. [2022-11-22 01:35:49,545 INFO L78 Accepts]: Start accepts. Automaton has 1713 states and 2202 transitions. Word has length 130 [2022-11-22 01:35:49,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:35:49,546 INFO L495 AbstractCegarLoop]: Abstraction has 1713 states and 2202 transitions. [2022-11-22 01:35:49,546 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2022-11-22 01:35:49,546 INFO L276 IsEmpty]: Start isEmpty. Operand 1713 states and 2202 transitions. [2022-11-22 01:35:49,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2022-11-22 01:35:49,549 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:35:49,549 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 7, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-11-22 01:35:49,549 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-11-22 01:35:49,550 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_block_queue_blk_cleanup_queueErr0ASSERT_VIOLATIONERROR_FUNCTION (and 30 more)] === [2022-11-22 01:35:49,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:35:49,550 INFO L85 PathProgramCache]: Analyzing trace with hash 1668146862, now seen corresponding path program 1 times [2022-11-22 01:35:49,550 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:35:49,551 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1829228121] [2022-11-22 01:35:49,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:35:49,551 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:35:49,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:35:50,729 INFO L134 CoverageAnalysis]: Checked inductivity of 222 backedges. 4 proven. 14 refuted. 0 times theorem prover too weak. 204 trivial. 0 not checked. [2022-11-22 01:35:50,730 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:35:50,730 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1829228121] [2022-11-22 01:35:50,730 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1829228121] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 01:35:50,730 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [60113021] [2022-11-22 01:35:50,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:35:50,731 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:35:50,731 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267017c2-7ad2-487e-b5b1-e385037f26e1/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:35:50,738 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267017c2-7ad2-487e-b5b1-e385037f26e1/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:35:50,773 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267017c2-7ad2-487e-b5b1-e385037f26e1/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-22 01:35:51,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:35:51,485 INFO L263 TraceCheckSpWp]: Trace formula consists of 1652 conjuncts, 22 conjunts are in the unsatisfiable core [2022-11-22 01:35:51,498 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:35:51,713 INFO L134 CoverageAnalysis]: Checked inductivity of 222 backedges. 79 proven. 0 refuted. 0 times theorem prover too weak. 143 trivial. 0 not checked. [2022-11-22 01:35:51,714 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 01:35:51,714 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [60113021] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:35:51,714 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-22 01:35:51,714 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [11] total 14 [2022-11-22 01:35:51,715 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2114372797] [2022-11-22 01:35:51,715 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:35:51,715 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-22 01:35:51,716 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:35:51,716 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-22 01:35:51,716 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-11-22 01:35:51,717 INFO L87 Difference]: Start difference. First operand 1713 states and 2202 transitions. Second operand has 11 states, 8 states have (on average 6.75) internal successors, (54), 10 states have internal predecessors, (54), 6 states have call successors, (26), 2 states have call predecessors, (26), 4 states have return successors, (26), 6 states have call predecessors, (26), 6 states have call successors, (26) [2022-11-22 01:35:56,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:35:56,543 INFO L93 Difference]: Finished difference Result 2250 states and 2843 transitions. [2022-11-22 01:35:56,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-22 01:35:56,544 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 8 states have (on average 6.75) internal successors, (54), 10 states have internal predecessors, (54), 6 states have call successors, (26), 2 states have call predecessors, (26), 4 states have return successors, (26), 6 states have call predecessors, (26), 6 states have call successors, (26) Word has length 157 [2022-11-22 01:35:56,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:35:56,550 INFO L225 Difference]: With dead ends: 2250 [2022-11-22 01:35:56,550 INFO L226 Difference]: Without dead ends: 1746 [2022-11-22 01:35:56,552 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 155 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=60, Invalid=282, Unknown=0, NotChecked=0, Total=342 [2022-11-22 01:35:56,552 INFO L413 NwaCegarLoop]: 861 mSDtfsCounter, 24 mSDsluCounter, 7596 mSDsCounter, 0 mSdLazyCounter, 1876 mSolverCounterSat, 93 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 8457 SdHoareTripleChecker+Invalid, 1969 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 93 IncrementalHoareTripleChecker+Valid, 1876 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2022-11-22 01:35:56,553 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 8457 Invalid, 1969 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [93 Valid, 1876 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2022-11-22 01:35:56,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1746 states. [2022-11-22 01:35:56,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1746 to 1722. [2022-11-22 01:35:56,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1722 states, 995 states have (on average 1.1829145728643216) internal successors, (1177), 1045 states have internal predecessors, (1177), 511 states have call successors, (511), 206 states have call predecessors, (511), 205 states have return successors, (527), 501 states have call predecessors, (527), 509 states have call successors, (527) [2022-11-22 01:35:56,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1722 states to 1722 states and 2215 transitions. [2022-11-22 01:35:56,968 INFO L78 Accepts]: Start accepts. Automaton has 1722 states and 2215 transitions. Word has length 157 [2022-11-22 01:35:56,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:35:56,969 INFO L495 AbstractCegarLoop]: Abstraction has 1722 states and 2215 transitions. [2022-11-22 01:35:56,969 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 8 states have (on average 6.75) internal successors, (54), 10 states have internal predecessors, (54), 6 states have call successors, (26), 2 states have call predecessors, (26), 4 states have return successors, (26), 6 states have call predecessors, (26), 6 states have call successors, (26) [2022-11-22 01:35:56,969 INFO L276 IsEmpty]: Start isEmpty. Operand 1722 states and 2215 transitions. [2022-11-22 01:35:56,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-11-22 01:35:56,972 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:35:56,972 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:35:56,988 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267017c2-7ad2-487e-b5b1-e385037f26e1/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-22 01:35:57,182 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267017c2-7ad2-487e-b5b1-e385037f26e1/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:35:57,183 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ldv_linux_usb_urb_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_block_queue_blk_cleanup_queueErr0ASSERT_VIOLATIONERROR_FUNCTION (and 30 more)] === [2022-11-22 01:35:57,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:35:57,183 INFO L85 PathProgramCache]: Analyzing trace with hash -1663659430, now seen corresponding path program 1 times [2022-11-22 01:35:57,183 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:35:57,183 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [254923342] [2022-11-22 01:35:57,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:35:57,184 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:35:57,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:35:57,401 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-22 01:35:57,402 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:35:57,402 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [254923342] [2022-11-22 01:35:57,402 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [254923342] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:35:57,402 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:35:57,402 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 01:35:57,403 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1993953079] [2022-11-22 01:35:57,403 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:35:57,403 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 01:35:57,403 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:35:57,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 01:35:57,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 01:35:57,404 INFO L87 Difference]: Start difference. First operand 1722 states and 2215 transitions. Second operand has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2022-11-22 01:35:59,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:35:59,057 INFO L93 Difference]: Finished difference Result 1722 states and 2215 transitions. [2022-11-22 01:35:59,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 01:35:59,058 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 135 [2022-11-22 01:35:59,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:35:59,063 INFO L225 Difference]: With dead ends: 1722 [2022-11-22 01:35:59,063 INFO L226 Difference]: Without dead ends: 1504 [2022-11-22 01:35:59,065 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-22 01:35:59,065 INFO L413 NwaCegarLoop]: 854 mSDtfsCounter, 981 mSDsluCounter, 854 mSDsCounter, 0 mSdLazyCounter, 323 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 981 SdHoareTripleChecker+Valid, 1708 SdHoareTripleChecker+Invalid, 323 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 323 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-11-22 01:35:59,066 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [981 Valid, 1708 Invalid, 323 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 323 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-11-22 01:35:59,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1504 states. [2022-11-22 01:35:59,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1504 to 1504. [2022-11-22 01:35:59,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1504 states, 876 states have (on average 1.2009132420091324) internal successors, (1052), 922 states have internal predecessors, (1052), 449 states have call successors, (449), 171 states have call predecessors, (449), 169 states have return successors, (464), 441 states have call predecessors, (464), 446 states have call successors, (464) [2022-11-22 01:35:59,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1504 states to 1504 states and 1965 transitions. [2022-11-22 01:35:59,375 INFO L78 Accepts]: Start accepts. Automaton has 1504 states and 1965 transitions. Word has length 135 [2022-11-22 01:35:59,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:35:59,375 INFO L495 AbstractCegarLoop]: Abstraction has 1504 states and 1965 transitions. [2022-11-22 01:35:59,375 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2022-11-22 01:35:59,375 INFO L276 IsEmpty]: Start isEmpty. Operand 1504 states and 1965 transitions. [2022-11-22 01:35:59,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2022-11-22 01:35:59,378 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:35:59,378 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 7, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-11-22 01:35:59,378 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-11-22 01:35:59,378 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_block_queue_blk_cleanup_queueErr0ASSERT_VIOLATIONERROR_FUNCTION (and 30 more)] === [2022-11-22 01:35:59,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:35:59,379 INFO L85 PathProgramCache]: Analyzing trace with hash -745740765, now seen corresponding path program 1 times [2022-11-22 01:35:59,379 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:35:59,379 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [858466513] [2022-11-22 01:35:59,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:35:59,380 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:35:59,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:36:00,188 INFO L134 CoverageAnalysis]: Checked inductivity of 222 backedges. 4 proven. 14 refuted. 0 times theorem prover too weak. 204 trivial. 0 not checked. [2022-11-22 01:36:00,189 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:36:00,189 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [858466513] [2022-11-22 01:36:00,189 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [858466513] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 01:36:00,189 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [750987666] [2022-11-22 01:36:00,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:36:00,189 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:36:00,190 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267017c2-7ad2-487e-b5b1-e385037f26e1/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:36:00,191 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267017c2-7ad2-487e-b5b1-e385037f26e1/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:36:00,216 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267017c2-7ad2-487e-b5b1-e385037f26e1/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-22 01:36:00,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:36:00,891 INFO L263 TraceCheckSpWp]: Trace formula consists of 1681 conjuncts, 24 conjunts are in the unsatisfiable core [2022-11-22 01:36:00,902 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:36:01,000 INFO L134 CoverageAnalysis]: Checked inductivity of 222 backedges. 79 proven. 0 refuted. 0 times theorem prover too weak. 143 trivial. 0 not checked. [2022-11-22 01:36:01,001 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 01:36:01,001 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [750987666] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:36:01,024 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-22 01:36:01,024 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [12] total 14 [2022-11-22 01:36:01,024 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [180652467] [2022-11-22 01:36:01,024 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:36:01,025 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-22 01:36:01,025 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:36:01,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-22 01:36:01,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-11-22 01:36:01,025 INFO L87 Difference]: Start difference. First operand 1504 states and 1965 transitions. Second operand has 12 states, 9 states have (on average 6.333333333333333) internal successors, (57), 11 states have internal predecessors, (57), 7 states have call successors, (27), 2 states have call predecessors, (27), 4 states have return successors, (27), 7 states have call predecessors, (27), 7 states have call successors, (27) [2022-11-22 01:36:04,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:36:04,940 INFO L93 Difference]: Finished difference Result 1830 states and 2373 transitions. [2022-11-22 01:36:04,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-22 01:36:04,941 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 9 states have (on average 6.333333333333333) internal successors, (57), 11 states have internal predecessors, (57), 7 states have call successors, (27), 2 states have call predecessors, (27), 4 states have return successors, (27), 7 states have call predecessors, (27), 7 states have call successors, (27) Word has length 162 [2022-11-22 01:36:04,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:36:04,949 INFO L225 Difference]: With dead ends: 1830 [2022-11-22 01:36:04,949 INFO L226 Difference]: Without dead ends: 1504 [2022-11-22 01:36:04,951 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 180 GetRequests, 162 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=66, Invalid=314, Unknown=0, NotChecked=0, Total=380 [2022-11-22 01:36:04,951 INFO L413 NwaCegarLoop]: 737 mSDtfsCounter, 21 mSDsluCounter, 7292 mSDsCounter, 0 mSdLazyCounter, 1865 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 8029 SdHoareTripleChecker+Invalid, 1881 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 1865 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-11-22 01:36:04,952 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 8029 Invalid, 1881 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 1865 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2022-11-22 01:36:04,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1504 states. [2022-11-22 01:36:05,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1504 to 1504. [2022-11-22 01:36:05,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1504 states, 876 states have (on average 1.1997716894977168) internal successors, (1051), 921 states have internal predecessors, (1051), 449 states have call successors, (449), 171 states have call predecessors, (449), 169 states have return successors, (464), 441 states have call predecessors, (464), 446 states have call successors, (464) [2022-11-22 01:36:05,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1504 states to 1504 states and 1964 transitions. [2022-11-22 01:36:05,204 INFO L78 Accepts]: Start accepts. Automaton has 1504 states and 1964 transitions. Word has length 162 [2022-11-22 01:36:05,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:36:05,204 INFO L495 AbstractCegarLoop]: Abstraction has 1504 states and 1964 transitions. [2022-11-22 01:36:05,205 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 9 states have (on average 6.333333333333333) internal successors, (57), 11 states have internal predecessors, (57), 7 states have call successors, (27), 2 states have call predecessors, (27), 4 states have return successors, (27), 7 states have call predecessors, (27), 7 states have call successors, (27) [2022-11-22 01:36:05,205 INFO L276 IsEmpty]: Start isEmpty. Operand 1504 states and 1964 transitions. [2022-11-22 01:36:05,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2022-11-22 01:36:05,207 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:36:05,207 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 8, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-11-22 01:36:05,222 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267017c2-7ad2-487e-b5b1-e385037f26e1/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-22 01:36:05,416 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267017c2-7ad2-487e-b5b1-e385037f26e1/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2022-11-22 01:36:05,416 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_block_queue_blk_cleanup_queueErr0ASSERT_VIOLATIONERROR_FUNCTION (and 30 more)] === [2022-11-22 01:36:05,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:36:05,417 INFO L85 PathProgramCache]: Analyzing trace with hash -1552640051, now seen corresponding path program 1 times [2022-11-22 01:36:05,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:36:05,417 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2090857631] [2022-11-22 01:36:05,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:36:05,418 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:36:05,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:36:06,092 INFO L134 CoverageAnalysis]: Checked inductivity of 266 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 244 trivial. 0 not checked. [2022-11-22 01:36:06,092 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:36:06,092 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2090857631] [2022-11-22 01:36:06,092 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2090857631] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:36:06,093 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:36:06,093 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-22 01:36:06,093 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [326551904] [2022-11-22 01:36:06,093 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:36:06,093 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-22 01:36:06,094 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:36:06,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-22 01:36:06,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-22 01:36:06,094 INFO L87 Difference]: Start difference. First operand 1504 states and 1964 transitions. Second operand has 7 states, 5 states have (on average 11.8) internal successors, (59), 6 states have internal predecessors, (59), 3 states have call successors, (28), 1 states have call predecessors, (28), 3 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) [2022-11-22 01:36:08,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:36:08,546 INFO L93 Difference]: Finished difference Result 2104 states and 2705 transitions. [2022-11-22 01:36:08,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-22 01:36:08,546 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 11.8) internal successors, (59), 6 states have internal predecessors, (59), 3 states have call successors, (28), 1 states have call predecessors, (28), 3 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) Word has length 170 [2022-11-22 01:36:08,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:36:08,560 INFO L225 Difference]: With dead ends: 2104 [2022-11-22 01:36:08,560 INFO L226 Difference]: Without dead ends: 1516 [2022-11-22 01:36:08,562 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-11-22 01:36:08,563 INFO L413 NwaCegarLoop]: 735 mSDtfsCounter, 1 mSDsluCounter, 3628 mSDsCounter, 0 mSdLazyCounter, 1009 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 4363 SdHoareTripleChecker+Invalid, 1009 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1009 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-11-22 01:36:08,564 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 4363 Invalid, 1009 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1009 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-11-22 01:36:08,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1516 states. [2022-11-22 01:36:09,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1516 to 1512. [2022-11-22 01:36:09,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1512 states, 880 states have (on average 1.1988636363636365) internal successors, (1055), 929 states have internal predecessors, (1055), 449 states have call successors, (449), 171 states have call predecessors, (449), 173 states have return successors, (475), 441 states have call predecessors, (475), 446 states have call successors, (475) [2022-11-22 01:36:09,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1512 states to 1512 states and 1979 transitions. [2022-11-22 01:36:09,022 INFO L78 Accepts]: Start accepts. Automaton has 1512 states and 1979 transitions. Word has length 170 [2022-11-22 01:36:09,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:36:09,023 INFO L495 AbstractCegarLoop]: Abstraction has 1512 states and 1979 transitions. [2022-11-22 01:36:09,023 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 11.8) internal successors, (59), 6 states have internal predecessors, (59), 3 states have call successors, (28), 1 states have call predecessors, (28), 3 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) [2022-11-22 01:36:09,023 INFO L276 IsEmpty]: Start isEmpty. Operand 1512 states and 1979 transitions. [2022-11-22 01:36:09,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2022-11-22 01:36:09,026 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:36:09,026 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 8, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:36:09,027 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-11-22 01:36:09,027 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_block_queue_blk_cleanup_queueErr0ASSERT_VIOLATIONERROR_FUNCTION (and 30 more)] === [2022-11-22 01:36:09,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:36:09,028 INFO L85 PathProgramCache]: Analyzing trace with hash -770122110, now seen corresponding path program 1 times [2022-11-22 01:36:09,028 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:36:09,028 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [157934043] [2022-11-22 01:36:09,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:36:09,028 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:36:09,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:36:09,997 INFO L134 CoverageAnalysis]: Checked inductivity of 343 backedges. 2 proven. 22 refuted. 0 times theorem prover too weak. 319 trivial. 0 not checked. [2022-11-22 01:36:09,997 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:36:09,997 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [157934043] [2022-11-22 01:36:09,998 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [157934043] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 01:36:09,998 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1689840305] [2022-11-22 01:36:09,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:36:09,998 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:36:09,998 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267017c2-7ad2-487e-b5b1-e385037f26e1/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:36:09,999 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267017c2-7ad2-487e-b5b1-e385037f26e1/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:36:10,007 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267017c2-7ad2-487e-b5b1-e385037f26e1/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-22 01:36:10,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:36:10,678 INFO L263 TraceCheckSpWp]: Trace formula consists of 1790 conjuncts, 19 conjunts are in the unsatisfiable core [2022-11-22 01:36:10,684 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:36:10,726 INFO L134 CoverageAnalysis]: Checked inductivity of 343 backedges. 82 proven. 0 refuted. 0 times theorem prover too weak. 261 trivial. 0 not checked. [2022-11-22 01:36:10,726 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 01:36:10,727 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1689840305] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:36:10,727 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-22 01:36:10,727 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 7 [2022-11-22 01:36:10,727 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [639678354] [2022-11-22 01:36:10,727 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:36:10,728 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-22 01:36:10,728 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:36:10,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-22 01:36:10,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-22 01:36:10,729 INFO L87 Difference]: Start difference. First operand 1512 states and 1979 transitions. Second operand has 7 states, 6 states have (on average 10.5) internal successors, (63), 6 states have internal predecessors, (63), 2 states have call successors, (31), 2 states have call predecessors, (31), 3 states have return successors, (31), 3 states have call predecessors, (31), 2 states have call successors, (31) [2022-11-22 01:36:13,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:36:13,537 INFO L93 Difference]: Finished difference Result 2189 states and 2941 transitions. [2022-11-22 01:36:13,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-22 01:36:13,538 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 10.5) internal successors, (63), 6 states have internal predecessors, (63), 2 states have call successors, (31), 2 states have call predecessors, (31), 3 states have return successors, (31), 3 states have call predecessors, (31), 2 states have call successors, (31) Word has length 183 [2022-11-22 01:36:13,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:36:13,544 INFO L225 Difference]: With dead ends: 2189 [2022-11-22 01:36:13,544 INFO L226 Difference]: Without dead ends: 1853 [2022-11-22 01:36:13,546 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 192 GetRequests, 183 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2022-11-22 01:36:13,547 INFO L413 NwaCegarLoop]: 814 mSDtfsCounter, 218 mSDsluCounter, 3947 mSDsCounter, 0 mSdLazyCounter, 1060 mSolverCounterSat, 121 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 260 SdHoareTripleChecker+Valid, 4761 SdHoareTripleChecker+Invalid, 1181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 121 IncrementalHoareTripleChecker+Valid, 1060 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-11-22 01:36:13,547 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [260 Valid, 4761 Invalid, 1181 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [121 Valid, 1060 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-11-22 01:36:13,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1853 states. [2022-11-22 01:36:13,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1853 to 1514. [2022-11-22 01:36:13,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1514 states, 882 states have (on average 1.1984126984126984) internal successors, (1057), 931 states have internal predecessors, (1057), 449 states have call successors, (449), 171 states have call predecessors, (449), 173 states have return successors, (475), 441 states have call predecessors, (475), 446 states have call successors, (475) [2022-11-22 01:36:13,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1514 states to 1514 states and 1981 transitions. [2022-11-22 01:36:13,939 INFO L78 Accepts]: Start accepts. Automaton has 1514 states and 1981 transitions. Word has length 183 [2022-11-22 01:36:13,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:36:13,939 INFO L495 AbstractCegarLoop]: Abstraction has 1514 states and 1981 transitions. [2022-11-22 01:36:13,939 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 10.5) internal successors, (63), 6 states have internal predecessors, (63), 2 states have call successors, (31), 2 states have call predecessors, (31), 3 states have return successors, (31), 3 states have call predecessors, (31), 2 states have call successors, (31) [2022-11-22 01:36:13,939 INFO L276 IsEmpty]: Start isEmpty. Operand 1514 states and 1981 transitions. [2022-11-22 01:36:13,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2022-11-22 01:36:13,942 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:36:13,943 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 8, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:36:13,957 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267017c2-7ad2-487e-b5b1-e385037f26e1/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-22 01:36:14,152 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267017c2-7ad2-487e-b5b1-e385037f26e1/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable30 [2022-11-22 01:36:14,152 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_block_queue_blk_cleanup_queueErr0ASSERT_VIOLATIONERROR_FUNCTION (and 30 more)] === [2022-11-22 01:36:14,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:36:14,153 INFO L85 PathProgramCache]: Analyzing trace with hash 18538414, now seen corresponding path program 1 times [2022-11-22 01:36:14,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:36:14,153 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1403496599] [2022-11-22 01:36:14,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:36:14,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:36:14,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:36:15,305 INFO L134 CoverageAnalysis]: Checked inductivity of 343 backedges. 8 proven. 36 refuted. 0 times theorem prover too weak. 299 trivial. 0 not checked. [2022-11-22 01:36:15,306 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:36:15,306 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1403496599] [2022-11-22 01:36:15,306 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1403496599] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 01:36:15,306 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2032526346] [2022-11-22 01:36:15,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:36:15,306 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:36:15,307 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267017c2-7ad2-487e-b5b1-e385037f26e1/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:36:15,308 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267017c2-7ad2-487e-b5b1-e385037f26e1/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:36:15,339 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267017c2-7ad2-487e-b5b1-e385037f26e1/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-22 01:36:15,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:36:16,003 INFO L263 TraceCheckSpWp]: Trace formula consists of 1815 conjuncts, 50 conjunts are in the unsatisfiable core [2022-11-22 01:36:16,010 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:36:16,199 INFO L134 CoverageAnalysis]: Checked inductivity of 343 backedges. 138 proven. 0 refuted. 0 times theorem prover too weak. 205 trivial. 0 not checked. [2022-11-22 01:36:16,199 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 01:36:16,199 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2032526346] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:36:16,199 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-22 01:36:16,200 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [13] total 16 [2022-11-22 01:36:16,200 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1558262315] [2022-11-22 01:36:16,200 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:36:16,201 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-22 01:36:16,201 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:36:16,201 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-22 01:36:16,202 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=207, Unknown=0, NotChecked=0, Total=240 [2022-11-22 01:36:16,202 INFO L87 Difference]: Start difference. First operand 1514 states and 1981 transitions. Second operand has 12 states, 9 states have (on average 7.333333333333333) internal successors, (66), 11 states have internal predecessors, (66), 7 states have call successors, (33), 2 states have call predecessors, (33), 4 states have return successors, (33), 7 states have call predecessors, (33), 7 states have call successors, (33) [2022-11-22 01:36:20,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:36:20,024 INFO L93 Difference]: Finished difference Result 2180 states and 2817 transitions. [2022-11-22 01:36:20,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-22 01:36:20,025 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 9 states have (on average 7.333333333333333) internal successors, (66), 11 states have internal predecessors, (66), 7 states have call successors, (33), 2 states have call predecessors, (33), 4 states have return successors, (33), 7 states have call predecessors, (33), 7 states have call successors, (33) Word has length 190 [2022-11-22 01:36:20,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:36:20,029 INFO L225 Difference]: With dead ends: 2180 [2022-11-22 01:36:20,029 INFO L226 Difference]: Without dead ends: 1518 [2022-11-22 01:36:20,031 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 210 GetRequests, 188 SyntacticMatches, 2 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=72, Invalid=390, Unknown=0, NotChecked=0, Total=462 [2022-11-22 01:36:20,031 INFO L413 NwaCegarLoop]: 741 mSDtfsCounter, 32 mSDsluCounter, 7305 mSDsCounter, 0 mSdLazyCounter, 1894 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 8046 SdHoareTripleChecker+Invalid, 1922 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 1894 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2022-11-22 01:36:20,032 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 8046 Invalid, 1922 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 1894 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2022-11-22 01:36:20,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1518 states. [2022-11-22 01:36:20,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1518 to 1512. [2022-11-22 01:36:20,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1512 states, 881 states have (on average 1.1963677639046537) internal successors, (1054), 930 states have internal predecessors, (1054), 450 states have call successors, (450), 169 states have call predecessors, (450), 171 states have return successors, (476), 442 states have call predecessors, (476), 447 states have call successors, (476) [2022-11-22 01:36:20,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1512 states to 1512 states and 1980 transitions. [2022-11-22 01:36:20,295 INFO L78 Accepts]: Start accepts. Automaton has 1512 states and 1980 transitions. Word has length 190 [2022-11-22 01:36:20,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:36:20,296 INFO L495 AbstractCegarLoop]: Abstraction has 1512 states and 1980 transitions. [2022-11-22 01:36:20,296 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 9 states have (on average 7.333333333333333) internal successors, (66), 11 states have internal predecessors, (66), 7 states have call successors, (33), 2 states have call predecessors, (33), 4 states have return successors, (33), 7 states have call predecessors, (33), 7 states have call successors, (33) [2022-11-22 01:36:20,296 INFO L276 IsEmpty]: Start isEmpty. Operand 1512 states and 1980 transitions. [2022-11-22 01:36:20,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2022-11-22 01:36:20,298 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:36:20,299 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:36:20,310 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267017c2-7ad2-487e-b5b1-e385037f26e1/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-22 01:36:20,507 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267017c2-7ad2-487e-b5b1-e385037f26e1/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:36:20,507 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_block_queue_blk_cleanup_queueErr0ASSERT_VIOLATIONERROR_FUNCTION (and 30 more)] === [2022-11-22 01:36:20,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:36:20,508 INFO L85 PathProgramCache]: Analyzing trace with hash -1966981529, now seen corresponding path program 1 times [2022-11-22 01:36:20,508 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:36:20,508 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1966802293] [2022-11-22 01:36:20,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:36:20,509 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:36:20,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:36:20,860 INFO L134 CoverageAnalysis]: Checked inductivity of 280 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 280 trivial. 0 not checked. [2022-11-22 01:36:20,860 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:36:20,860 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1966802293] [2022-11-22 01:36:20,861 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1966802293] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:36:20,861 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:36:20,861 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 01:36:20,861 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1835290562] [2022-11-22 01:36:20,861 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:36:20,862 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 01:36:20,862 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:36:20,862 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 01:36:20,862 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 01:36:20,863 INFO L87 Difference]: Start difference. First operand 1512 states and 1980 transitions. Second operand has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2022-11-22 01:36:23,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:36:23,209 INFO L93 Difference]: Finished difference Result 1966 states and 2680 transitions. [2022-11-22 01:36:23,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-22 01:36:23,209 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 202 [2022-11-22 01:36:23,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:36:23,215 INFO L225 Difference]: With dead ends: 1966 [2022-11-22 01:36:23,216 INFO L226 Difference]: Without dead ends: 1964 [2022-11-22 01:36:23,216 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-22 01:36:23,217 INFO L413 NwaCegarLoop]: 1381 mSDtfsCounter, 978 mSDsluCounter, 1855 mSDsCounter, 0 mSdLazyCounter, 636 mSolverCounterSat, 77 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1086 SdHoareTripleChecker+Valid, 3236 SdHoareTripleChecker+Invalid, 713 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 77 IncrementalHoareTripleChecker+Valid, 636 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-11-22 01:36:23,217 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1086 Valid, 3236 Invalid, 713 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [77 Valid, 636 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-11-22 01:36:23,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1964 states. [2022-11-22 01:36:23,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1964 to 1514. [2022-11-22 01:36:23,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1514 states, 883 states have (on average 1.1959229898074746) internal successors, (1056), 931 states have internal predecessors, (1056), 450 states have call successors, (450), 169 states have call predecessors, (450), 171 states have return successors, (476), 443 states have call predecessors, (476), 447 states have call successors, (476) [2022-11-22 01:36:23,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1514 states to 1514 states and 1982 transitions. [2022-11-22 01:36:23,622 INFO L78 Accepts]: Start accepts. Automaton has 1514 states and 1982 transitions. Word has length 202 [2022-11-22 01:36:23,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:36:23,623 INFO L495 AbstractCegarLoop]: Abstraction has 1514 states and 1982 transitions. [2022-11-22 01:36:23,623 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2022-11-22 01:36:23,623 INFO L276 IsEmpty]: Start isEmpty. Operand 1514 states and 1982 transitions. [2022-11-22 01:36:23,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2022-11-22 01:36:23,626 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:36:23,626 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:36:23,626 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-11-22 01:36:23,627 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ldv_linux_block_genhd_put_diskErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_block_queue_blk_cleanup_queueErr0ASSERT_VIOLATIONERROR_FUNCTION (and 30 more)] === [2022-11-22 01:36:23,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:36:23,627 INFO L85 PathProgramCache]: Analyzing trace with hash 1647028617, now seen corresponding path program 1 times [2022-11-22 01:36:23,627 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:36:23,627 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [681483371] [2022-11-22 01:36:23,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:36:23,628 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:36:23,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:36:23,939 INFO L134 CoverageAnalysis]: Checked inductivity of 280 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 280 trivial. 0 not checked. [2022-11-22 01:36:23,940 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:36:23,940 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [681483371] [2022-11-22 01:36:23,940 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [681483371] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:36:23,940 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:36:23,940 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-22 01:36:23,941 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [279106560] [2022-11-22 01:36:23,941 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:36:23,942 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-22 01:36:23,942 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:36:23,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-22 01:36:23,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-22 01:36:23,943 INFO L87 Difference]: Start difference. First operand 1514 states and 1982 transitions. Second operand has 6 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (24), 3 states have call predecessors, (24), 2 states have call successors, (24) [2022-11-22 01:36:26,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:36:26,412 INFO L93 Difference]: Finished difference Result 3392 states and 4546 transitions. [2022-11-22 01:36:26,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-22 01:36:26,419 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (24), 3 states have call predecessors, (24), 2 states have call successors, (24) Word has length 213 [2022-11-22 01:36:26,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:36:26,426 INFO L225 Difference]: With dead ends: 3392 [2022-11-22 01:36:26,426 INFO L226 Difference]: Without dead ends: 1898 [2022-11-22 01:36:26,431 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-22 01:36:26,438 INFO L413 NwaCegarLoop]: 901 mSDtfsCounter, 108 mSDsluCounter, 3459 mSDsCounter, 0 mSdLazyCounter, 841 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 179 SdHoareTripleChecker+Valid, 4360 SdHoareTripleChecker+Invalid, 844 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 841 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-11-22 01:36:26,438 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [179 Valid, 4360 Invalid, 844 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 841 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-11-22 01:36:26,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1898 states. [2022-11-22 01:36:26,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1898 to 1522. [2022-11-22 01:36:26,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1522 states, 889 states have (on average 1.1946006749156355) internal successors, (1062), 937 states have internal predecessors, (1062), 450 states have call successors, (450), 169 states have call predecessors, (450), 173 states have return successors, (480), 445 states have call predecessors, (480), 447 states have call successors, (480) [2022-11-22 01:36:26,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1522 states to 1522 states and 1992 transitions. [2022-11-22 01:36:26,786 INFO L78 Accepts]: Start accepts. Automaton has 1522 states and 1992 transitions. Word has length 213 [2022-11-22 01:36:26,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:36:26,787 INFO L495 AbstractCegarLoop]: Abstraction has 1522 states and 1992 transitions. [2022-11-22 01:36:26,787 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (24), 3 states have call predecessors, (24), 2 states have call successors, (24) [2022-11-22 01:36:26,787 INFO L276 IsEmpty]: Start isEmpty. Operand 1522 states and 1992 transitions. [2022-11-22 01:36:26,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2022-11-22 01:36:26,790 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:36:26,790 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:36:26,791 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-11-22 01:36:26,791 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ldv_linux_block_genhd_del_gendiskErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_block_queue_blk_cleanup_queueErr0ASSERT_VIOLATIONERROR_FUNCTION (and 30 more)] === [2022-11-22 01:36:26,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:36:26,791 INFO L85 PathProgramCache]: Analyzing trace with hash 1301938378, now seen corresponding path program 1 times [2022-11-22 01:36:26,792 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:36:26,792 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1101353590] [2022-11-22 01:36:26,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:36:26,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:36:26,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:36:27,618 INFO L134 CoverageAnalysis]: Checked inductivity of 313 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 307 trivial. 0 not checked. [2022-11-22 01:36:27,619 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:36:27,619 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1101353590] [2022-11-22 01:36:27,619 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1101353590] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 01:36:27,619 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [722170945] [2022-11-22 01:36:27,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:36:27,620 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:36:27,620 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267017c2-7ad2-487e-b5b1-e385037f26e1/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:36:27,623 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267017c2-7ad2-487e-b5b1-e385037f26e1/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:36:27,650 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267017c2-7ad2-487e-b5b1-e385037f26e1/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-22 01:36:28,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:36:28,431 INFO L263 TraceCheckSpWp]: Trace formula consists of 2152 conjuncts, 22 conjunts are in the unsatisfiable core [2022-11-22 01:36:28,438 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:36:28,668 INFO L134 CoverageAnalysis]: Checked inductivity of 313 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 281 trivial. 0 not checked. [2022-11-22 01:36:28,669 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 01:36:28,669 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [722170945] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:36:28,669 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-22 01:36:28,669 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [8] total 20 [2022-11-22 01:36:28,670 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1936269540] [2022-11-22 01:36:28,670 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:36:28,670 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-22 01:36:28,670 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:36:28,671 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-22 01:36:28,671 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=343, Unknown=0, NotChecked=0, Total=380 [2022-11-22 01:36:28,671 INFO L87 Difference]: Start difference. First operand 1522 states and 1992 transitions. Second operand has 14 states, 10 states have (on average 8.0) internal successors, (80), 12 states have internal predecessors, (80), 6 states have call successors, (32), 2 states have call predecessors, (32), 5 states have return successors, (30), 7 states have call predecessors, (30), 6 states have call successors, (30) [2022-11-22 01:36:36,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:36:36,702 INFO L93 Difference]: Finished difference Result 3800 states and 5177 transitions. [2022-11-22 01:36:36,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-22 01:36:36,703 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 10 states have (on average 8.0) internal successors, (80), 12 states have internal predecessors, (80), 6 states have call successors, (32), 2 states have call predecessors, (32), 5 states have return successors, (30), 7 states have call predecessors, (30), 6 states have call successors, (30) Word has length 226 [2022-11-22 01:36:36,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:36:36,713 INFO L225 Difference]: With dead ends: 3800 [2022-11-22 01:36:36,713 INFO L226 Difference]: Without dead ends: 2296 [2022-11-22 01:36:36,718 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 248 GetRequests, 219 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=106, Invalid=824, Unknown=0, NotChecked=0, Total=930 [2022-11-22 01:36:36,719 INFO L413 NwaCegarLoop]: 1174 mSDtfsCounter, 550 mSDsluCounter, 13033 mSDsCounter, 0 mSdLazyCounter, 3099 mSolverCounterSat, 451 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 554 SdHoareTripleChecker+Valid, 14207 SdHoareTripleChecker+Invalid, 3550 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 451 IncrementalHoareTripleChecker+Valid, 3099 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.8s IncrementalHoareTripleChecker+Time [2022-11-22 01:36:36,719 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [554 Valid, 14207 Invalid, 3550 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [451 Valid, 3099 Invalid, 0 Unknown, 0 Unchecked, 6.8s Time] [2022-11-22 01:36:36,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2296 states. [2022-11-22 01:36:37,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2296 to 1522. [2022-11-22 01:36:37,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1522 states, 889 states have (on average 1.1946006749156355) internal successors, (1062), 937 states have internal predecessors, (1062), 450 states have call successors, (450), 169 states have call predecessors, (450), 173 states have return successors, (480), 445 states have call predecessors, (480), 447 states have call successors, (480) [2022-11-22 01:36:37,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1522 states to 1522 states and 1992 transitions. [2022-11-22 01:36:37,010 INFO L78 Accepts]: Start accepts. Automaton has 1522 states and 1992 transitions. Word has length 226 [2022-11-22 01:36:37,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:36:37,011 INFO L495 AbstractCegarLoop]: Abstraction has 1522 states and 1992 transitions. [2022-11-22 01:36:37,011 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 10 states have (on average 8.0) internal successors, (80), 12 states have internal predecessors, (80), 6 states have call successors, (32), 2 states have call predecessors, (32), 5 states have return successors, (30), 7 states have call predecessors, (30), 6 states have call successors, (30) [2022-11-22 01:36:37,011 INFO L276 IsEmpty]: Start isEmpty. Operand 1522 states and 1992 transitions. [2022-11-22 01:36:37,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2022-11-22 01:36:37,014 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:36:37,014 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 7, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:36:37,028 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267017c2-7ad2-487e-b5b1-e385037f26e1/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-22 01:36:37,224 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267017c2-7ad2-487e-b5b1-e385037f26e1/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:36:37,224 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ldv_linux_block_genhd_put_diskErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_block_queue_blk_cleanup_queueErr0ASSERT_VIOLATIONERROR_FUNCTION (and 30 more)] === [2022-11-22 01:36:37,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:36:37,224 INFO L85 PathProgramCache]: Analyzing trace with hash -110188336, now seen corresponding path program 1 times [2022-11-22 01:36:37,224 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:36:37,225 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [783684341] [2022-11-22 01:36:37,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:36:37,225 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:36:37,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:36:37,494 INFO L134 CoverageAnalysis]: Checked inductivity of 354 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 354 trivial. 0 not checked. [2022-11-22 01:36:37,508 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:36:37,508 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [783684341] [2022-11-22 01:36:37,508 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [783684341] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:36:37,509 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:36:37,509 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 01:36:37,509 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1853441485] [2022-11-22 01:36:37,509 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:36:37,510 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 01:36:37,510 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:36:37,510 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 01:36:37,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 01:36:37,511 INFO L87 Difference]: Start difference. First operand 1522 states and 1992 transitions. Second operand has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 3 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) [2022-11-22 01:36:39,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:36:39,033 INFO L93 Difference]: Finished difference Result 3092 states and 4075 transitions. [2022-11-22 01:36:39,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-22 01:36:39,033 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 3 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) Word has length 244 [2022-11-22 01:36:39,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:36:39,041 INFO L225 Difference]: With dead ends: 3092 [2022-11-22 01:36:39,041 INFO L226 Difference]: Without dead ends: 1590 [2022-11-22 01:36:39,045 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-22 01:36:39,045 INFO L413 NwaCegarLoop]: 758 mSDtfsCounter, 42 mSDsluCounter, 1491 mSDsCounter, 0 mSdLazyCounter, 445 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 2249 SdHoareTripleChecker+Invalid, 459 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 445 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-11-22 01:36:39,046 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 2249 Invalid, 459 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 445 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-11-22 01:36:39,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1590 states. [2022-11-22 01:36:39,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1590 to 1554. [2022-11-22 01:36:39,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1554 states, 909 states have (on average 1.199119911991199) internal successors, (1090), 961 states have internal predecessors, (1090), 462 states have call successors, (462), 169 states have call predecessors, (462), 173 states have return successors, (492), 457 states have call predecessors, (492), 459 states have call successors, (492) [2022-11-22 01:36:39,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1554 states to 1554 states and 2044 transitions. [2022-11-22 01:36:39,355 INFO L78 Accepts]: Start accepts. Automaton has 1554 states and 2044 transitions. Word has length 244 [2022-11-22 01:36:39,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:36:39,356 INFO L495 AbstractCegarLoop]: Abstraction has 1554 states and 2044 transitions. [2022-11-22 01:36:39,356 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 3 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) [2022-11-22 01:36:39,356 INFO L276 IsEmpty]: Start isEmpty. Operand 1554 states and 2044 transitions. [2022-11-22 01:36:39,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 249 [2022-11-22 01:36:39,358 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:36:39,359 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 7, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:36:39,359 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-11-22 01:36:39,359 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ldv_linux_block_genhd_put_diskErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_block_queue_blk_cleanup_queueErr0ASSERT_VIOLATIONERROR_FUNCTION (and 30 more)] === [2022-11-22 01:36:39,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:36:39,360 INFO L85 PathProgramCache]: Analyzing trace with hash -776923253, now seen corresponding path program 1 times [2022-11-22 01:36:39,360 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:36:39,360 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1158881182] [2022-11-22 01:36:39,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:36:39,360 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:36:39,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:36:39,749 INFO L134 CoverageAnalysis]: Checked inductivity of 354 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 354 trivial. 0 not checked. [2022-11-22 01:36:39,750 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:36:39,750 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1158881182] [2022-11-22 01:36:39,750 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1158881182] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:36:39,750 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:36:39,750 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-22 01:36:39,751 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1870146605] [2022-11-22 01:36:39,751 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:36:39,752 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-22 01:36:39,752 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:36:39,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-22 01:36:39,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-22 01:36:39,753 INFO L87 Difference]: Start difference. First operand 1554 states and 2044 transitions. Second operand has 7 states, 6 states have (on average 12.333333333333334) internal successors, (74), 6 states have internal predecessors, (74), 3 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (26), 4 states have call predecessors, (26), 3 states have call successors, (26) [2022-11-22 01:36:42,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:36:42,271 INFO L93 Difference]: Finished difference Result 3504 states and 4732 transitions. [2022-11-22 01:36:42,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-22 01:36:42,273 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 12.333333333333334) internal successors, (74), 6 states have internal predecessors, (74), 3 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (26), 4 states have call predecessors, (26), 3 states have call successors, (26) Word has length 248 [2022-11-22 01:36:42,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:36:42,279 INFO L225 Difference]: With dead ends: 3504 [2022-11-22 01:36:42,279 INFO L226 Difference]: Without dead ends: 1970 [2022-11-22 01:36:42,282 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2022-11-22 01:36:42,283 INFO L413 NwaCegarLoop]: 912 mSDtfsCounter, 147 mSDsluCounter, 4397 mSDsCounter, 0 mSdLazyCounter, 1021 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 223 SdHoareTripleChecker+Valid, 5309 SdHoareTripleChecker+Invalid, 1037 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 1021 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-11-22 01:36:42,283 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [223 Valid, 5309 Invalid, 1037 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 1021 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-11-22 01:36:42,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1970 states. [2022-11-22 01:36:42,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1970 to 1566. [2022-11-22 01:36:42,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1566 states, 917 states have (on average 1.1973827699018538) internal successors, (1098), 969 states have internal predecessors, (1098), 464 states have call successors, (464), 169 states have call predecessors, (464), 175 states have return successors, (498), 461 states have call predecessors, (498), 461 states have call successors, (498) [2022-11-22 01:36:42,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1566 states to 1566 states and 2060 transitions. [2022-11-22 01:36:42,612 INFO L78 Accepts]: Start accepts. Automaton has 1566 states and 2060 transitions. Word has length 248 [2022-11-22 01:36:42,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:36:42,613 INFO L495 AbstractCegarLoop]: Abstraction has 1566 states and 2060 transitions. [2022-11-22 01:36:42,613 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 12.333333333333334) internal successors, (74), 6 states have internal predecessors, (74), 3 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (26), 4 states have call predecessors, (26), 3 states have call successors, (26) [2022-11-22 01:36:42,613 INFO L276 IsEmpty]: Start isEmpty. Operand 1566 states and 2060 transitions. [2022-11-22 01:36:42,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 262 [2022-11-22 01:36:42,616 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:36:42,617 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:36:42,617 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-11-22 01:36:42,617 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ldv_linux_block_genhd_del_gendiskErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_block_queue_blk_cleanup_queueErr0ASSERT_VIOLATIONERROR_FUNCTION (and 30 more)] === [2022-11-22 01:36:42,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:36:42,618 INFO L85 PathProgramCache]: Analyzing trace with hash 244508168, now seen corresponding path program 1 times [2022-11-22 01:36:42,618 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:36:42,618 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1241217354] [2022-11-22 01:36:42,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:36:42,619 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:36:42,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:36:43,615 INFO L134 CoverageAnalysis]: Checked inductivity of 377 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 365 trivial. 0 not checked. [2022-11-22 01:36:43,615 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:36:43,616 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1241217354] [2022-11-22 01:36:43,616 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1241217354] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 01:36:43,616 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [907741927] [2022-11-22 01:36:43,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:36:43,616 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:36:43,617 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267017c2-7ad2-487e-b5b1-e385037f26e1/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:36:43,618 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267017c2-7ad2-487e-b5b1-e385037f26e1/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:36:43,638 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267017c2-7ad2-487e-b5b1-e385037f26e1/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-22 01:36:44,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:36:44,552 INFO L263 TraceCheckSpWp]: Trace formula consists of 2280 conjuncts, 23 conjunts are in the unsatisfiable core [2022-11-22 01:36:44,557 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:36:44,856 INFO L134 CoverageAnalysis]: Checked inductivity of 377 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 343 trivial. 0 not checked. [2022-11-22 01:36:44,856 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 01:36:44,856 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [907741927] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:36:44,856 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-22 01:36:44,856 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [8] total 21 [2022-11-22 01:36:44,856 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1355597230] [2022-11-22 01:36:44,857 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:36:44,857 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-11-22 01:36:44,857 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:36:44,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-11-22 01:36:44,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=381, Unknown=0, NotChecked=0, Total=420 [2022-11-22 01:36:44,858 INFO L87 Difference]: Start difference. First operand 1566 states and 2060 transitions. Second operand has 15 states, 11 states have (on average 7.636363636363637) internal successors, (84), 13 states have internal predecessors, (84), 7 states have call successors, (34), 2 states have call predecessors, (34), 5 states have return successors, (32), 8 states have call predecessors, (32), 7 states have call successors, (32) [2022-11-22 01:36:53,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:36:53,839 INFO L93 Difference]: Finished difference Result 3920 states and 5373 transitions. [2022-11-22 01:36:53,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-11-22 01:36:53,840 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 11 states have (on average 7.636363636363637) internal successors, (84), 13 states have internal predecessors, (84), 7 states have call successors, (34), 2 states have call predecessors, (34), 5 states have return successors, (32), 8 states have call predecessors, (32), 7 states have call successors, (32) Word has length 261 [2022-11-22 01:36:53,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:36:53,845 INFO L225 Difference]: With dead ends: 3920 [2022-11-22 01:36:53,846 INFO L226 Difference]: Without dead ends: 2372 [2022-11-22 01:36:53,849 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 285 GetRequests, 253 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=119, Invalid=1003, Unknown=0, NotChecked=0, Total=1122 [2022-11-22 01:36:53,850 INFO L413 NwaCegarLoop]: 1186 mSDtfsCounter, 589 mSDsluCounter, 14339 mSDsCounter, 0 mSdLazyCounter, 3366 mSolverCounterSat, 466 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 597 SdHoareTripleChecker+Valid, 15525 SdHoareTripleChecker+Invalid, 3832 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 466 IncrementalHoareTripleChecker+Valid, 3366 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.7s IncrementalHoareTripleChecker+Time [2022-11-22 01:36:53,850 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [597 Valid, 15525 Invalid, 3832 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [466 Valid, 3366 Invalid, 0 Unknown, 0 Unchecked, 7.7s Time] [2022-11-22 01:36:53,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2372 states. [2022-11-22 01:36:54,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2372 to 1558. [2022-11-22 01:36:54,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1558 states, 911 states have (on average 1.198682766190999) internal successors, (1092), 963 states have internal predecessors, (1092), 464 states have call successors, (464), 169 states have call predecessors, (464), 173 states have return successors, (494), 459 states have call predecessors, (494), 461 states have call successors, (494) [2022-11-22 01:36:54,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1558 states to 1558 states and 2050 transitions. [2022-11-22 01:36:54,279 INFO L78 Accepts]: Start accepts. Automaton has 1558 states and 2050 transitions. Word has length 261 [2022-11-22 01:36:54,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:36:54,280 INFO L495 AbstractCegarLoop]: Abstraction has 1558 states and 2050 transitions. [2022-11-22 01:36:54,280 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 11 states have (on average 7.636363636363637) internal successors, (84), 13 states have internal predecessors, (84), 7 states have call successors, (34), 2 states have call predecessors, (34), 5 states have return successors, (32), 8 states have call predecessors, (32), 7 states have call successors, (32) [2022-11-22 01:36:54,281 INFO L276 IsEmpty]: Start isEmpty. Operand 1558 states and 2050 transitions. [2022-11-22 01:36:54,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 262 [2022-11-22 01:36:54,283 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:36:54,283 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 7, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:36:54,293 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267017c2-7ad2-487e-b5b1-e385037f26e1/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-22 01:36:54,493 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267017c2-7ad2-487e-b5b1-e385037f26e1/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2022-11-22 01:36:54,493 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting ldv_linux_block_genhd_put_diskErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_block_queue_blk_cleanup_queueErr0ASSERT_VIOLATIONERROR_FUNCTION (and 30 more)] === [2022-11-22 01:36:54,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:36:54,494 INFO L85 PathProgramCache]: Analyzing trace with hash 1025093937, now seen corresponding path program 1 times [2022-11-22 01:36:54,494 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:36:54,494 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1259166364] [2022-11-22 01:36:54,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:36:54,494 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:36:54,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:36:55,488 INFO L134 CoverageAnalysis]: Checked inductivity of 366 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 350 trivial. 0 not checked. [2022-11-22 01:36:55,488 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:36:55,488 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1259166364] [2022-11-22 01:36:55,489 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1259166364] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 01:36:55,489 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1659543044] [2022-11-22 01:36:55,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:36:55,489 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:36:55,489 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267017c2-7ad2-487e-b5b1-e385037f26e1/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:36:55,491 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267017c2-7ad2-487e-b5b1-e385037f26e1/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:36:55,514 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267017c2-7ad2-487e-b5b1-e385037f26e1/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-22 01:36:56,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:36:56,502 INFO L263 TraceCheckSpWp]: Trace formula consists of 2463 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-22 01:36:56,510 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:36:56,927 INFO L134 CoverageAnalysis]: Checked inductivity of 366 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 366 trivial. 0 not checked. [2022-11-22 01:36:56,928 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 01:36:56,928 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1659543044] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:36:56,928 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-22 01:36:56,928 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [8] total 9 [2022-11-22 01:36:56,928 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1328672023] [2022-11-22 01:36:56,928 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:36:56,929 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:36:56,929 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:36:56,929 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:36:56,929 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-22 01:36:56,930 INFO L87 Difference]: Start difference. First operand 1558 states and 2050 transitions. Second operand has 3 states, 3 states have (on average 26.0) internal successors, (78), 2 states have internal predecessors, (78), 2 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) [2022-11-22 01:36:58,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:36:58,551 INFO L93 Difference]: Finished difference Result 4505 states and 5897 transitions. [2022-11-22 01:36:58,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:36:58,552 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 2 states have internal predecessors, (78), 2 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) Word has length 261 [2022-11-22 01:36:58,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:36:58,559 INFO L225 Difference]: With dead ends: 4505 [2022-11-22 01:36:58,559 INFO L226 Difference]: Without dead ends: 2967 [2022-11-22 01:36:58,564 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 269 GetRequests, 262 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-22 01:36:58,565 INFO L413 NwaCegarLoop]: 926 mSDtfsCounter, 601 mSDsluCounter, 720 mSDsCounter, 0 mSdLazyCounter, 294 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 601 SdHoareTripleChecker+Valid, 1646 SdHoareTripleChecker+Invalid, 294 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 294 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-22 01:36:58,565 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [601 Valid, 1646 Invalid, 294 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 294 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-22 01:36:58,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2967 states. [2022-11-22 01:36:59,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2967 to 2893. [2022-11-22 01:36:59,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2893 states, 1685 states have (on average 1.200593471810089) internal successors, (2023), 1778 states have internal predecessors, (2023), 864 states have call successors, (864), 324 states have call predecessors, (864), 334 states have return successors, (921), 856 states have call predecessors, (921), 861 states have call successors, (921) [2022-11-22 01:36:59,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2893 states to 2893 states and 3808 transitions. [2022-11-22 01:36:59,254 INFO L78 Accepts]: Start accepts. Automaton has 2893 states and 3808 transitions. Word has length 261 [2022-11-22 01:36:59,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:36:59,254 INFO L495 AbstractCegarLoop]: Abstraction has 2893 states and 3808 transitions. [2022-11-22 01:36:59,255 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 2 states have internal predecessors, (78), 2 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) [2022-11-22 01:36:59,255 INFO L276 IsEmpty]: Start isEmpty. Operand 2893 states and 3808 transitions. [2022-11-22 01:36:59,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 267 [2022-11-22 01:36:59,257 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:36:59,258 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 7, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:36:59,269 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267017c2-7ad2-487e-b5b1-e385037f26e1/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-11-22 01:36:59,468 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267017c2-7ad2-487e-b5b1-e385037f26e1/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2022-11-22 01:36:59,468 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting ldv_linux_block_genhd_del_gendiskErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_block_queue_blk_cleanup_queueErr0ASSERT_VIOLATIONERROR_FUNCTION (and 30 more)] === [2022-11-22 01:36:59,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:36:59,469 INFO L85 PathProgramCache]: Analyzing trace with hash -1911627918, now seen corresponding path program 1 times [2022-11-22 01:36:59,469 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:36:59,469 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [799162611] [2022-11-22 01:36:59,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:36:59,469 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:36:59,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:37:00,371 INFO L134 CoverageAnalysis]: Checked inductivity of 366 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 350 trivial. 0 not checked. [2022-11-22 01:37:00,371 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:37:00,371 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [799162611] [2022-11-22 01:37:00,371 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [799162611] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 01:37:00,372 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1921504077] [2022-11-22 01:37:00,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:37:00,372 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:37:00,372 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267017c2-7ad2-487e-b5b1-e385037f26e1/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:37:00,375 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267017c2-7ad2-487e-b5b1-e385037f26e1/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:37:00,394 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267017c2-7ad2-487e-b5b1-e385037f26e1/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-11-22 01:37:01,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:37:01,345 INFO L263 TraceCheckSpWp]: Trace formula consists of 2458 conjuncts, 29 conjunts are in the unsatisfiable core [2022-11-22 01:37:01,353 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:37:01,415 INFO L134 CoverageAnalysis]: Checked inductivity of 366 backedges. 98 proven. 0 refuted. 0 times theorem prover too weak. 268 trivial. 0 not checked. [2022-11-22 01:37:01,416 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 01:37:01,416 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1921504077] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:37:01,416 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-22 01:37:01,416 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [8] total 8 [2022-11-22 01:37:01,417 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1164159592] [2022-11-22 01:37:01,417 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:37:01,417 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-22 01:37:01,417 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:37:01,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-22 01:37:01,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-22 01:37:01,419 INFO L87 Difference]: Start difference. First operand 2893 states and 3808 transitions. Second operand has 8 states, 7 states have (on average 14.0) internal successors, (98), 6 states have internal predecessors, (98), 3 states have call successors, (38), 2 states have call predecessors, (38), 4 states have return successors, (35), 5 states have call predecessors, (35), 3 states have call successors, (35) [2022-11-22 01:37:04,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:37:04,950 INFO L93 Difference]: Finished difference Result 6324 states and 8501 transitions. [2022-11-22 01:37:04,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-22 01:37:04,954 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 14.0) internal successors, (98), 6 states have internal predecessors, (98), 3 states have call successors, (38), 2 states have call predecessors, (38), 4 states have return successors, (35), 5 states have call predecessors, (35), 3 states have call successors, (35) Word has length 266 [2022-11-22 01:37:04,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:37:04,967 INFO L225 Difference]: With dead ends: 6324 [2022-11-22 01:37:04,967 INFO L226 Difference]: Without dead ends: 3451 [2022-11-22 01:37:04,976 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 275 GetRequests, 268 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-11-22 01:37:04,977 INFO L413 NwaCegarLoop]: 895 mSDtfsCounter, 68 mSDsluCounter, 5235 mSDsCounter, 0 mSdLazyCounter, 1200 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 6130 SdHoareTripleChecker+Invalid, 1200 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1200 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-11-22 01:37:04,977 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [119 Valid, 6130 Invalid, 1200 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1200 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-11-22 01:37:04,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3451 states. [2022-11-22 01:37:05,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3451 to 2917. [2022-11-22 01:37:05,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2917 states, 1701 states have (on average 1.1987066431510875) internal successors, (2039), 1790 states have internal predecessors, (2039), 868 states have call successors, (868), 324 states have call predecessors, (868), 338 states have return successors, (961), 868 states have call predecessors, (961), 865 states have call successors, (961) [2022-11-22 01:37:05,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2917 states to 2917 states and 3868 transitions. [2022-11-22 01:37:05,622 INFO L78 Accepts]: Start accepts. Automaton has 2917 states and 3868 transitions. Word has length 266 [2022-11-22 01:37:05,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:37:05,622 INFO L495 AbstractCegarLoop]: Abstraction has 2917 states and 3868 transitions. [2022-11-22 01:37:05,623 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 14.0) internal successors, (98), 6 states have internal predecessors, (98), 3 states have call successors, (38), 2 states have call predecessors, (38), 4 states have return successors, (35), 5 states have call predecessors, (35), 3 states have call successors, (35) [2022-11-22 01:37:05,623 INFO L276 IsEmpty]: Start isEmpty. Operand 2917 states and 3868 transitions. [2022-11-22 01:37:05,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 268 [2022-11-22 01:37:05,626 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:37:05,626 INFO L195 NwaCegarLoop]: trace histogram [21, 21, 9, 9, 7, 7, 7, 7, 7, 7, 7, 7, 7, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:37:05,643 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267017c2-7ad2-487e-b5b1-e385037f26e1/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-11-22 01:37:05,838 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267017c2-7ad2-487e-b5b1-e385037f26e1/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2022-11-22 01:37:05,838 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_block_queue_blk_cleanup_queueErr0ASSERT_VIOLATIONERROR_FUNCTION (and 30 more)] === [2022-11-22 01:37:05,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:37:05,839 INFO L85 PathProgramCache]: Analyzing trace with hash -1020129715, now seen corresponding path program 1 times [2022-11-22 01:37:05,839 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:37:05,839 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [951102154] [2022-11-22 01:37:05,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:37:05,839 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:37:06,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:37:07,619 INFO L134 CoverageAnalysis]: Checked inductivity of 939 backedges. 4 proven. 72 refuted. 0 times theorem prover too weak. 863 trivial. 0 not checked. [2022-11-22 01:37:07,619 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:37:07,620 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [951102154] [2022-11-22 01:37:07,620 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [951102154] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 01:37:07,620 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [686507277] [2022-11-22 01:37:07,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:37:07,620 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:37:07,620 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267017c2-7ad2-487e-b5b1-e385037f26e1/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:37:07,623 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267017c2-7ad2-487e-b5b1-e385037f26e1/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:37:07,632 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267017c2-7ad2-487e-b5b1-e385037f26e1/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-11-22 01:37:08,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:37:08,775 INFO L263 TraceCheckSpWp]: Trace formula consists of 2184 conjuncts, 40 conjunts are in the unsatisfiable core [2022-11-22 01:37:08,779 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:37:08,948 INFO L134 CoverageAnalysis]: Checked inductivity of 939 backedges. 282 proven. 2 refuted. 0 times theorem prover too weak. 655 trivial. 0 not checked. [2022-11-22 01:37:08,948 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:37:09,434 INFO L134 CoverageAnalysis]: Checked inductivity of 939 backedges. 4 proven. 66 refuted. 0 times theorem prover too weak. 869 trivial. 0 not checked. [2022-11-22 01:37:09,434 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [686507277] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 01:37:09,434 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1763639612] [2022-11-22 01:37:09,459 INFO L159 IcfgInterpreter]: Started Sifa with 118 locations of interest [2022-11-22 01:37:09,459 INFO L166 IcfgInterpreter]: Building call graph [2022-11-22 01:37:09,464 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-22 01:37:09,470 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-22 01:37:09,470 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-22 01:37:10,492 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 11 [2022-11-22 01:37:10,687 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 11 [2022-11-22 01:37:14,411 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:37:15,504 INFO L321 Elim1Store]: treesize reduction 576, result has 33.4 percent of original size [2022-11-22 01:37:15,505 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 35 select indices, 35 select index equivalence classes, 563 disjoint index pairs (out of 595 index pairs), introduced 35 new quantified variables, introduced 64 case distinctions, treesize of input 182 treesize of output 409 [2022-11-22 01:37:16,063 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:37:16,070 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 33 select indices, 33 select index equivalence classes, 562 disjoint index pairs (out of 528 index pairs), introduced 33 new quantified variables, introduced 0 case distinctions, treesize of input 172 treesize of output 270 [2022-11-22 01:37:32,049 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-11-22 01:37:32,056 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-22 01:37:33,772 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:37:33,776 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 34 select indices, 34 select index equivalence classes, 562 disjoint index pairs (out of 561 index pairs), introduced 34 new quantified variables, introduced 0 case distinctions, treesize of input 171 treesize of output 103 [2022-11-22 01:37:34,015 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:37:34,019 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 35 select indices, 35 select index equivalence classes, 595 disjoint index pairs (out of 595 index pairs), introduced 35 new quantified variables, introduced 0 case distinctions, treesize of input 176 treesize of output 106 [2022-11-22 01:37:36,983 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:37:36,987 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 35 select indices, 35 select index equivalence classes, 595 disjoint index pairs (out of 595 index pairs), introduced 35 new quantified variables, introduced 0 case distinctions, treesize of input 176 treesize of output 106 [2022-11-22 01:37:37,195 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:37:37,202 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 34 select indices, 34 select index equivalence classes, 562 disjoint index pairs (out of 561 index pairs), introduced 34 new quantified variables, introduced 0 case distinctions, treesize of input 171 treesize of output 103 [2022-11-22 01:37:44,154 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:37:44,156 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:37:44,157 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:37:44,159 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:37:44,160 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:37:44,162 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:37:44,164 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:37:44,168 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:37:44,170 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:37:44,172 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:37:44,174 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:37:44,176 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:37:44,177 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:37:44,181 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:37:44,183 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:37:44,185 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:37:44,187 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:37:44,189 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:37:44,193 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:37:44,195 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:37:44,197 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:37:44,199 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:37:44,204 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:37:44,206 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:37:44,207 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:37:44,211 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:37:44,213 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:37:44,217 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:37:44,234 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:37:44,236 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:37:44,238 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:37:44,240 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:37:44,242 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:37:44,245 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:37:44,247 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:37:44,249 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:37:44,251 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:37:44,252 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:37:44,254 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:37:44,257 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:37:44,258 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:37:44,260 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:37:44,262 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:37:44,264 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:37:44,267 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:37:44,269 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:37:44,271 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:37:44,272 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:37:44,276 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:37:45,107 INFO L321 Elim1Store]: treesize reduction 96, result has 48.1 percent of original size [2022-11-22 01:37:45,110 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 67 select indices, 67 select index equivalence classes, 442 disjoint index pairs (out of 2211 index pairs), introduced 67 new quantified variables, introduced 8 case distinctions, treesize of input 5223 treesize of output 5066 [2022-11-22 01:37:46,043 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:37:46,045 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:37:46,048 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:37:46,050 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:37:46,054 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:37:46,059 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:37:46,064 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:37:46,070 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:37:46,072 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:37:46,075 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:37:46,077 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:37:46,079 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:37:46,081 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:37:46,086 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:37:46,088 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:37:46,090 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:37:46,092 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:37:46,095 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:37:46,099 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:37:46,101 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:37:46,104 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:37:46,106 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:37:46,110 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:37:46,112 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:37:46,114 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:37:46,118 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:37:46,121 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:37:46,125 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:37:46,137 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:37:46,140 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:37:46,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:37:46,144 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:37:46,146 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:37:46,148 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:37:46,151 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:37:46,153 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:37:46,155 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:37:46,157 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:37:46,159 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:37:46,161 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:37:46,163 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:37:46,165 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:37:46,166 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:37:46,167 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:37:46,170 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:37:46,172 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:37:46,174 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:37:46,175 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:37:46,178 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:37:46,441 INFO L321 Elim1Store]: treesize reduction 124, result has 33.0 percent of original size [2022-11-22 01:37:46,443 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 67 select indices, 67 select index equivalence classes, 442 disjoint index pairs (out of 2211 index pairs), introduced 67 new quantified variables, introduced 8 case distinctions, treesize of input 5159 treesize of output 4974 [2022-11-22 01:37:47,410 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:37:47,412 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:37:47,414 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:37:47,416 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:37:47,418 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:37:47,420 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:37:47,422 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:37:47,424 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:37:47,426 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:37:47,428 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:37:47,430 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:37:47,431 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:37:47,433 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:37:47,436 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:37:47,439 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:37:47,441 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:37:47,443 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:37:47,444 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:37:47,446 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:37:47,448 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:37:47,450 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:37:47,452 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:37:47,454 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:37:47,455 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:37:47,457 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:37:47,459 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:37:47,460 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:37:47,463 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:37:47,464 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:37:47,466 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:37:47,467 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:37:47,469 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:37:47,470 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:37:47,473 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:37:47,475 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:37:47,477 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:37:47,479 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:37:47,481 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:37:47,483 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:37:47,486 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:37:47,488 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:37:47,490 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:37:47,492 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:37:47,494 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:37:47,499 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:37:47,502 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:37:47,504 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:37:47,505 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:37:47,507 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:37:47,508 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:37:47,510 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:37:47,511 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:37:47,513 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:37:47,514 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:37:47,517 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:37:47,519 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:37:47,521 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:37:47,522 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:37:47,523 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:37:47,526 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:37:47,528 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:37:47,529 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:37:47,531 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:37:47,532 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:37:47,534 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:37:47,536 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:37:47,538 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:37:47,540 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:37:47,541 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:37:47,543 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:37:47,544 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:37:47,545 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:37:47,548 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:37:47,550 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:37:47,551 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:37:47,554 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:37:47,556 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:37:47,557 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:37:47,560 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:37:47,562 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:37:47,563 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:37:47,567 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:37:47,569 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:37:47,574 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:37:47,586 INFO L217 Elim1Store]: Index analysis took 178 ms [2022-11-22 01:37:47,600 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:37:47,602 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:37:47,603 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:37:47,605 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:37:47,607 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:37:47,609 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:37:47,611 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:37:47,612 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:37:47,614 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:37:47,616 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:37:47,617 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:37:47,619 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:37:47,620 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:37:47,622 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:37:47,624 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:37:47,625 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:37:47,627 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:37:47,629 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:37:47,631 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:37:47,633 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:37:47,635 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:37:47,636 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:37:47,638 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:37:47,640 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:37:47,642 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:37:47,644 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:37:47,646 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:37:47,648 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:37:47,650 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:37:47,652 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:37:47,654 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:37:47,656 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:37:47,657 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:37:47,659 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:37:47,661 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:37:47,663 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:37:47,665 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:37:47,666 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:37:47,668 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:37:47,670 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:37:47,672 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:37:47,674 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:37:47,676 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:37:47,678 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:37:47,680 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:37:47,682 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:37:47,684 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:37:47,686 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:37:47,688 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:37:47,690 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:37:47,691 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:37:47,693 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:37:47,695 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:37:47,698 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:37:47,701 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:37:47,961 INFO L321 Elim1Store]: treesize reduction 160, result has 41.0 percent of original size [2022-11-22 01:37:47,963 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 99 select indices, 99 select index equivalence classes, 412 disjoint index pairs (out of 4851 index pairs), introduced 99 new quantified variables, introduced 10 case distinctions, treesize of input 5155 treesize of output 4963 [2022-11-22 01:40:36,526 WARN L233 SmtUtils]: Spent 8.16s on a formula simplification that was a NOOP. DAG size: 1192 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-11-22 01:42:52,819 WARN L233 SmtUtils]: Spent 9.59s on a formula simplification that was a NOOP. DAG size: 1213 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-11-22 01:47:15,397 WARN L233 SmtUtils]: Spent 18.11s on a formula simplification that was a NOOP. DAG size: 1294 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-11-22 01:47:33,448 WARN L233 SmtUtils]: Spent 8.99s on a formula simplification that was a NOOP. DAG size: 1286 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify)