./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--xen-blkfront.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_008eb9d7-1945-4032-b8a1-eda75cf95201/bin/utaipan-g80aRyZoba/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_008eb9d7-1945-4032-b8a1-eda75cf95201/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_008eb9d7-1945-4032-b8a1-eda75cf95201/bin/utaipan-g80aRyZoba/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_008eb9d7-1945-4032-b8a1-eda75cf95201/bin/utaipan-g80aRyZoba/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_008eb9d7-1945-4032-b8a1-eda75cf95201/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_008eb9d7-1945-4032-b8a1-eda75cf95201/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 dedd6e816706b4c34868dad2bcfd19a22eb16a791a20ccdf71875d228cd47b87 --- 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 02:12:32,318 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-22 02:12:32,321 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-22 02:12:32,362 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-22 02:12:32,363 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-22 02:12:32,367 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-22 02:12:32,370 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-22 02:12:32,372 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-22 02:12:32,375 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-22 02:12:32,381 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-22 02:12:32,383 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-22 02:12:32,385 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-22 02:12:32,385 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-22 02:12:32,388 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-22 02:12:32,390 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-22 02:12:32,393 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-22 02:12:32,395 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-22 02:12:32,396 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-22 02:12:32,398 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-22 02:12:32,404 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-22 02:12:32,409 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-22 02:12:32,411 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-22 02:12:32,414 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-22 02:12:32,415 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-22 02:12:32,418 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-22 02:12:32,419 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-22 02:12:32,419 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-22 02:12:32,420 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-22 02:12:32,421 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-22 02:12:32,422 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-22 02:12:32,422 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-22 02:12:32,423 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-22 02:12:32,424 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-22 02:12:32,425 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-22 02:12:32,426 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-22 02:12:32,426 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-22 02:12:32,427 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-22 02:12:32,427 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-22 02:12:32,427 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-22 02:12:32,428 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-22 02:12:32,429 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-22 02:12:32,430 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_008eb9d7-1945-4032-b8a1-eda75cf95201/bin/utaipan-g80aRyZoba/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-22 02:12:32,451 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-22 02:12:32,452 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-22 02:12:32,452 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-22 02:12:32,452 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-22 02:12:32,453 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-22 02:12:32,453 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-22 02:12:32,453 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-22 02:12:32,454 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-22 02:12:32,454 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-22 02:12:32,454 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-22 02:12:32,454 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-22 02:12:32,455 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-22 02:12:32,455 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-22 02:12:32,455 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-22 02:12:32,455 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-22 02:12:32,455 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-22 02:12:32,456 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-22 02:12:32,456 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-22 02:12:32,457 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-22 02:12:32,457 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-22 02:12:32,457 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-22 02:12:32,457 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-22 02:12:32,457 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-22 02:12:32,458 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-22 02:12:32,458 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-22 02:12:32,458 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-22 02:12:32,458 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-22 02:12:32,458 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-22 02:12:32,459 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-22 02:12:32,459 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 02:12:32,459 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-22 02:12:32,459 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-22 02:12:32,459 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-22 02:12:32,460 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-22 02:12:32,460 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-22 02:12:32,460 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-22 02:12:32,460 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-22 02:12:32,460 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-22 02:12:32,461 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_008eb9d7-1945-4032-b8a1-eda75cf95201/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_008eb9d7-1945-4032-b8a1-eda75cf95201/bin/utaipan-g80aRyZoba Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dedd6e816706b4c34868dad2bcfd19a22eb16a791a20ccdf71875d228cd47b87 [2022-11-22 02:12:32,704 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-22 02:12:32,726 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-22 02:12:32,728 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-22 02:12:32,729 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-22 02:12:32,730 INFO L275 PluginConnector]: CDTParser initialized [2022-11-22 02:12:32,731 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_008eb9d7-1945-4032-b8a1-eda75cf95201/bin/utaipan-g80aRyZoba/../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i [2022-11-22 02:12:35,779 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-22 02:12:36,442 INFO L351 CDTParser]: Found 1 translation units. [2022-11-22 02:12:36,443 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_008eb9d7-1945-4032-b8a1-eda75cf95201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i [2022-11-22 02:12:36,502 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_008eb9d7-1945-4032-b8a1-eda75cf95201/bin/utaipan-g80aRyZoba/data/f9e624734/0497badce8bc4212941348a7d22521c8/FLAG2e556e4ca [2022-11-22 02:12:36,521 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_008eb9d7-1945-4032-b8a1-eda75cf95201/bin/utaipan-g80aRyZoba/data/f9e624734/0497badce8bc4212941348a7d22521c8 [2022-11-22 02:12:36,526 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-22 02:12:36,528 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-22 02:12:36,532 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-22 02:12:36,532 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-22 02:12:36,536 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-22 02:12:36,538 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:12:36" (1/1) ... [2022-11-22 02:12:36,539 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d72e5cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:12:36, skipping insertion in model container [2022-11-22 02:12:36,539 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:12:36" (1/1) ... [2022-11-22 02:12:36,547 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-22 02:12:36,815 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-22 02:12:40,873 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_008eb9d7-1945-4032-b8a1-eda75cf95201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[373036,373049] [2022-11-22 02:12:40,879 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_008eb9d7-1945-4032-b8a1-eda75cf95201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[373181,373194] [2022-11-22 02:12:40,880 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_008eb9d7-1945-4032-b8a1-eda75cf95201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[373327,373340] [2022-11-22 02:12:40,884 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_008eb9d7-1945-4032-b8a1-eda75cf95201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[373492,373505] [2022-11-22 02:12:40,885 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_008eb9d7-1945-4032-b8a1-eda75cf95201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[373650,373663] [2022-11-22 02:12:40,886 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_008eb9d7-1945-4032-b8a1-eda75cf95201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[373808,373821] [2022-11-22 02:12:40,886 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_008eb9d7-1945-4032-b8a1-eda75cf95201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[373966,373979] [2022-11-22 02:12:40,886 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_008eb9d7-1945-4032-b8a1-eda75cf95201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[374126,374139] [2022-11-22 02:12:40,887 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_008eb9d7-1945-4032-b8a1-eda75cf95201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[374285,374298] [2022-11-22 02:12:40,887 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_008eb9d7-1945-4032-b8a1-eda75cf95201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[374424,374437] [2022-11-22 02:12:40,888 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_008eb9d7-1945-4032-b8a1-eda75cf95201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[374566,374579] [2022-11-22 02:12:40,889 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_008eb9d7-1945-4032-b8a1-eda75cf95201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[374715,374728] [2022-11-22 02:12:40,889 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_008eb9d7-1945-4032-b8a1-eda75cf95201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[374854,374867] [2022-11-22 02:12:40,890 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_008eb9d7-1945-4032-b8a1-eda75cf95201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[375009,375022] [2022-11-22 02:12:40,890 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_008eb9d7-1945-4032-b8a1-eda75cf95201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[375169,375182] [2022-11-22 02:12:40,890 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_008eb9d7-1945-4032-b8a1-eda75cf95201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[375320,375333] [2022-11-22 02:12:40,891 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_008eb9d7-1945-4032-b8a1-eda75cf95201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[375471,375484] [2022-11-22 02:12:40,892 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_008eb9d7-1945-4032-b8a1-eda75cf95201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[375623,375636] [2022-11-22 02:12:40,893 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_008eb9d7-1945-4032-b8a1-eda75cf95201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[375772,375785] [2022-11-22 02:12:40,893 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_008eb9d7-1945-4032-b8a1-eda75cf95201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[375920,375933] [2022-11-22 02:12:40,894 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_008eb9d7-1945-4032-b8a1-eda75cf95201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[376077,376090] [2022-11-22 02:12:40,895 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_008eb9d7-1945-4032-b8a1-eda75cf95201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[376226,376239] [2022-11-22 02:12:40,896 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_008eb9d7-1945-4032-b8a1-eda75cf95201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[376382,376395] [2022-11-22 02:12:40,897 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_008eb9d7-1945-4032-b8a1-eda75cf95201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[376535,376548] [2022-11-22 02:12:40,898 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_008eb9d7-1945-4032-b8a1-eda75cf95201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[376681,376694] [2022-11-22 02:12:40,899 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_008eb9d7-1945-4032-b8a1-eda75cf95201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[376824,376837] [2022-11-22 02:12:40,899 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_008eb9d7-1945-4032-b8a1-eda75cf95201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[376976,376989] [2022-11-22 02:12:40,900 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_008eb9d7-1945-4032-b8a1-eda75cf95201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[377122,377135] [2022-11-22 02:12:40,901 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_008eb9d7-1945-4032-b8a1-eda75cf95201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[377267,377280] [2022-11-22 02:12:40,901 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_008eb9d7-1945-4032-b8a1-eda75cf95201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[377421,377434] [2022-11-22 02:12:40,902 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_008eb9d7-1945-4032-b8a1-eda75cf95201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[377572,377585] [2022-11-22 02:12:40,951 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_008eb9d7-1945-4032-b8a1-eda75cf95201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[377727,377740] [2022-11-22 02:12:40,951 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_008eb9d7-1945-4032-b8a1-eda75cf95201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[377879,377892] [2022-11-22 02:12:40,952 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_008eb9d7-1945-4032-b8a1-eda75cf95201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[378034,378047] [2022-11-22 02:12:40,952 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_008eb9d7-1945-4032-b8a1-eda75cf95201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[378198,378211] [2022-11-22 02:12:40,952 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_008eb9d7-1945-4032-b8a1-eda75cf95201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[378354,378367] [2022-11-22 02:12:40,953 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_008eb9d7-1945-4032-b8a1-eda75cf95201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[378518,378531] [2022-11-22 02:12:40,953 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_008eb9d7-1945-4032-b8a1-eda75cf95201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[378660,378673] [2022-11-22 02:12:40,953 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_008eb9d7-1945-4032-b8a1-eda75cf95201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[378818,378831] [2022-11-22 02:12:40,954 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_008eb9d7-1945-4032-b8a1-eda75cf95201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[378985,378998] [2022-11-22 02:12:40,954 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_008eb9d7-1945-4032-b8a1-eda75cf95201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[379144,379157] [2022-11-22 02:12:40,954 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_008eb9d7-1945-4032-b8a1-eda75cf95201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[379303,379316] [2022-11-22 02:12:40,955 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_008eb9d7-1945-4032-b8a1-eda75cf95201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[379452,379465] [2022-11-22 02:12:40,955 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_008eb9d7-1945-4032-b8a1-eda75cf95201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[379599,379612] [2022-11-22 02:12:40,955 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_008eb9d7-1945-4032-b8a1-eda75cf95201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[379738,379751] [2022-11-22 02:12:40,956 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_008eb9d7-1945-4032-b8a1-eda75cf95201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[379901,379914] [2022-11-22 02:12:40,956 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_008eb9d7-1945-4032-b8a1-eda75cf95201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[380067,380080] [2022-11-22 02:12:40,956 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_008eb9d7-1945-4032-b8a1-eda75cf95201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[380231,380244] [2022-11-22 02:12:40,957 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_008eb9d7-1945-4032-b8a1-eda75cf95201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[380396,380409] [2022-11-22 02:12:40,957 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_008eb9d7-1945-4032-b8a1-eda75cf95201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[380561,380574] [2022-11-22 02:12:40,957 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_008eb9d7-1945-4032-b8a1-eda75cf95201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[380727,380740] [2022-11-22 02:12:40,958 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_008eb9d7-1945-4032-b8a1-eda75cf95201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[380892,380905] [2022-11-22 02:12:40,958 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_008eb9d7-1945-4032-b8a1-eda75cf95201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[381059,381072] [2022-11-22 02:12:40,958 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_008eb9d7-1945-4032-b8a1-eda75cf95201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[381219,381232] [2022-11-22 02:12:40,962 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_008eb9d7-1945-4032-b8a1-eda75cf95201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[381381,381394] [2022-11-22 02:12:40,963 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_008eb9d7-1945-4032-b8a1-eda75cf95201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[381540,381553] [2022-11-22 02:12:40,964 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_008eb9d7-1945-4032-b8a1-eda75cf95201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[381686,381699] [2022-11-22 02:12:40,965 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_008eb9d7-1945-4032-b8a1-eda75cf95201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[381829,381842] [2022-11-22 02:12:40,965 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_008eb9d7-1945-4032-b8a1-eda75cf95201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[381973,381986] [2022-11-22 02:12:40,967 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_008eb9d7-1945-4032-b8a1-eda75cf95201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[382116,382129] [2022-11-22 02:12:40,968 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_008eb9d7-1945-4032-b8a1-eda75cf95201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[382260,382273] [2022-11-22 02:12:40,968 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_008eb9d7-1945-4032-b8a1-eda75cf95201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[382401,382414] [2022-11-22 02:12:40,969 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_008eb9d7-1945-4032-b8a1-eda75cf95201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[382539,382552] [2022-11-22 02:12:40,969 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_008eb9d7-1945-4032-b8a1-eda75cf95201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[382697,382710] [2022-11-22 02:12:40,970 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_008eb9d7-1945-4032-b8a1-eda75cf95201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[382856,382869] [2022-11-22 02:12:40,970 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_008eb9d7-1945-4032-b8a1-eda75cf95201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[383012,383025] [2022-11-22 02:12:40,971 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_008eb9d7-1945-4032-b8a1-eda75cf95201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[383161,383174] [2022-11-22 02:12:40,972 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_008eb9d7-1945-4032-b8a1-eda75cf95201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[383313,383326] [2022-11-22 02:12:40,973 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_008eb9d7-1945-4032-b8a1-eda75cf95201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[383464,383477] [2022-11-22 02:12:40,974 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_008eb9d7-1945-4032-b8a1-eda75cf95201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[383613,383626] [2022-11-22 02:12:40,974 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_008eb9d7-1945-4032-b8a1-eda75cf95201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[383765,383778] [2022-11-22 02:12:40,975 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_008eb9d7-1945-4032-b8a1-eda75cf95201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[383913,383926] [2022-11-22 02:12:40,976 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_008eb9d7-1945-4032-b8a1-eda75cf95201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[384066,384079] [2022-11-22 02:12:40,976 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_008eb9d7-1945-4032-b8a1-eda75cf95201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[384217,384230] [2022-11-22 02:12:40,977 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_008eb9d7-1945-4032-b8a1-eda75cf95201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[384367,384380] [2022-11-22 02:12:40,978 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_008eb9d7-1945-4032-b8a1-eda75cf95201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[384514,384527] [2022-11-22 02:12:40,978 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_008eb9d7-1945-4032-b8a1-eda75cf95201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[384665,384678] [2022-11-22 02:12:40,978 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_008eb9d7-1945-4032-b8a1-eda75cf95201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[384816,384829] [2022-11-22 02:12:40,979 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_008eb9d7-1945-4032-b8a1-eda75cf95201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[384964,384977] [2022-11-22 02:12:40,979 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_008eb9d7-1945-4032-b8a1-eda75cf95201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[385130,385143] [2022-11-22 02:12:40,980 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_008eb9d7-1945-4032-b8a1-eda75cf95201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[385299,385312] [2022-11-22 02:12:40,980 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_008eb9d7-1945-4032-b8a1-eda75cf95201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[385466,385479] [2022-11-22 02:12:40,980 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_008eb9d7-1945-4032-b8a1-eda75cf95201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[385634,385647] [2022-11-22 02:12:40,981 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_008eb9d7-1945-4032-b8a1-eda75cf95201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[385784,385797] [2022-11-22 02:12:40,982 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_008eb9d7-1945-4032-b8a1-eda75cf95201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[385931,385944] [2022-11-22 02:12:40,982 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_008eb9d7-1945-4032-b8a1-eda75cf95201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[386092,386105] [2022-11-22 02:12:40,983 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_008eb9d7-1945-4032-b8a1-eda75cf95201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[386262,386275] [2022-11-22 02:12:40,983 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_008eb9d7-1945-4032-b8a1-eda75cf95201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[386424,386437] [2022-11-22 02:12:41,000 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 02:12:41,032 INFO L203 MainTranslator]: Completed pre-run [2022-11-22 02:12:41,468 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_008eb9d7-1945-4032-b8a1-eda75cf95201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[373036,373049] [2022-11-22 02:12:41,475 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_008eb9d7-1945-4032-b8a1-eda75cf95201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[373181,373194] [2022-11-22 02:12:41,475 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_008eb9d7-1945-4032-b8a1-eda75cf95201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[373327,373340] [2022-11-22 02:12:41,476 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_008eb9d7-1945-4032-b8a1-eda75cf95201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[373492,373505] [2022-11-22 02:12:41,476 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_008eb9d7-1945-4032-b8a1-eda75cf95201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[373650,373663] [2022-11-22 02:12:41,477 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_008eb9d7-1945-4032-b8a1-eda75cf95201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[373808,373821] [2022-11-22 02:12:41,477 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_008eb9d7-1945-4032-b8a1-eda75cf95201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[373966,373979] [2022-11-22 02:12:41,478 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_008eb9d7-1945-4032-b8a1-eda75cf95201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[374126,374139] [2022-11-22 02:12:41,478 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_008eb9d7-1945-4032-b8a1-eda75cf95201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[374285,374298] [2022-11-22 02:12:41,479 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_008eb9d7-1945-4032-b8a1-eda75cf95201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[374424,374437] [2022-11-22 02:12:41,479 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_008eb9d7-1945-4032-b8a1-eda75cf95201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[374566,374579] [2022-11-22 02:12:41,480 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_008eb9d7-1945-4032-b8a1-eda75cf95201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[374715,374728] [2022-11-22 02:12:41,480 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_008eb9d7-1945-4032-b8a1-eda75cf95201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[374854,374867] [2022-11-22 02:12:41,481 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_008eb9d7-1945-4032-b8a1-eda75cf95201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[375009,375022] [2022-11-22 02:12:41,481 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_008eb9d7-1945-4032-b8a1-eda75cf95201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[375169,375182] [2022-11-22 02:12:41,482 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_008eb9d7-1945-4032-b8a1-eda75cf95201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[375320,375333] [2022-11-22 02:12:41,482 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_008eb9d7-1945-4032-b8a1-eda75cf95201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[375471,375484] [2022-11-22 02:12:41,483 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_008eb9d7-1945-4032-b8a1-eda75cf95201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[375623,375636] [2022-11-22 02:12:41,483 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_008eb9d7-1945-4032-b8a1-eda75cf95201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[375772,375785] [2022-11-22 02:12:41,485 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_008eb9d7-1945-4032-b8a1-eda75cf95201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[375920,375933] [2022-11-22 02:12:41,485 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_008eb9d7-1945-4032-b8a1-eda75cf95201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[376077,376090] [2022-11-22 02:12:41,486 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_008eb9d7-1945-4032-b8a1-eda75cf95201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[376226,376239] [2022-11-22 02:12:41,486 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_008eb9d7-1945-4032-b8a1-eda75cf95201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[376382,376395] [2022-11-22 02:12:41,486 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_008eb9d7-1945-4032-b8a1-eda75cf95201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[376535,376548] [2022-11-22 02:12:41,488 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_008eb9d7-1945-4032-b8a1-eda75cf95201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[376681,376694] [2022-11-22 02:12:41,488 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_008eb9d7-1945-4032-b8a1-eda75cf95201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[376824,376837] [2022-11-22 02:12:41,489 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_008eb9d7-1945-4032-b8a1-eda75cf95201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[376976,376989] [2022-11-22 02:12:41,489 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_008eb9d7-1945-4032-b8a1-eda75cf95201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[377122,377135] [2022-11-22 02:12:41,490 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_008eb9d7-1945-4032-b8a1-eda75cf95201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[377267,377280] [2022-11-22 02:12:41,490 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_008eb9d7-1945-4032-b8a1-eda75cf95201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[377421,377434] [2022-11-22 02:12:41,491 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_008eb9d7-1945-4032-b8a1-eda75cf95201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[377572,377585] [2022-11-22 02:12:41,491 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_008eb9d7-1945-4032-b8a1-eda75cf95201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[377727,377740] [2022-11-22 02:12:41,492 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_008eb9d7-1945-4032-b8a1-eda75cf95201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[377879,377892] [2022-11-22 02:12:41,492 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_008eb9d7-1945-4032-b8a1-eda75cf95201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[378034,378047] [2022-11-22 02:12:41,493 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_008eb9d7-1945-4032-b8a1-eda75cf95201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[378198,378211] [2022-11-22 02:12:41,493 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_008eb9d7-1945-4032-b8a1-eda75cf95201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[378354,378367] [2022-11-22 02:12:41,494 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_008eb9d7-1945-4032-b8a1-eda75cf95201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[378518,378531] [2022-11-22 02:12:41,495 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_008eb9d7-1945-4032-b8a1-eda75cf95201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[378660,378673] [2022-11-22 02:12:41,496 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_008eb9d7-1945-4032-b8a1-eda75cf95201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[378818,378831] [2022-11-22 02:12:41,496 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_008eb9d7-1945-4032-b8a1-eda75cf95201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[378985,378998] [2022-11-22 02:12:41,497 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_008eb9d7-1945-4032-b8a1-eda75cf95201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[379144,379157] [2022-11-22 02:12:41,498 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_008eb9d7-1945-4032-b8a1-eda75cf95201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[379303,379316] [2022-11-22 02:12:41,498 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_008eb9d7-1945-4032-b8a1-eda75cf95201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[379452,379465] [2022-11-22 02:12:41,500 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_008eb9d7-1945-4032-b8a1-eda75cf95201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[379599,379612] [2022-11-22 02:12:41,500 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_008eb9d7-1945-4032-b8a1-eda75cf95201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[379738,379751] [2022-11-22 02:12:41,501 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_008eb9d7-1945-4032-b8a1-eda75cf95201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[379901,379914] [2022-11-22 02:12:41,501 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_008eb9d7-1945-4032-b8a1-eda75cf95201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[380067,380080] [2022-11-22 02:12:41,502 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_008eb9d7-1945-4032-b8a1-eda75cf95201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[380231,380244] [2022-11-22 02:12:41,502 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_008eb9d7-1945-4032-b8a1-eda75cf95201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[380396,380409] [2022-11-22 02:12:41,503 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_008eb9d7-1945-4032-b8a1-eda75cf95201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[380561,380574] [2022-11-22 02:12:41,503 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_008eb9d7-1945-4032-b8a1-eda75cf95201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[380727,380740] [2022-11-22 02:12:41,503 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_008eb9d7-1945-4032-b8a1-eda75cf95201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[380892,380905] [2022-11-22 02:12:41,504 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_008eb9d7-1945-4032-b8a1-eda75cf95201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[381059,381072] [2022-11-22 02:12:41,504 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_008eb9d7-1945-4032-b8a1-eda75cf95201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[381219,381232] [2022-11-22 02:12:41,505 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_008eb9d7-1945-4032-b8a1-eda75cf95201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[381381,381394] [2022-11-22 02:12:41,506 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_008eb9d7-1945-4032-b8a1-eda75cf95201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[381540,381553] [2022-11-22 02:12:41,510 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_008eb9d7-1945-4032-b8a1-eda75cf95201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[381686,381699] [2022-11-22 02:12:41,511 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_008eb9d7-1945-4032-b8a1-eda75cf95201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[381829,381842] [2022-11-22 02:12:41,511 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_008eb9d7-1945-4032-b8a1-eda75cf95201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[381973,381986] [2022-11-22 02:12:41,512 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_008eb9d7-1945-4032-b8a1-eda75cf95201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[382116,382129] [2022-11-22 02:12:41,513 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_008eb9d7-1945-4032-b8a1-eda75cf95201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[382260,382273] [2022-11-22 02:12:41,513 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_008eb9d7-1945-4032-b8a1-eda75cf95201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[382401,382414] [2022-11-22 02:12:41,515 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_008eb9d7-1945-4032-b8a1-eda75cf95201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[382539,382552] [2022-11-22 02:12:41,515 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_008eb9d7-1945-4032-b8a1-eda75cf95201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[382697,382710] [2022-11-22 02:12:41,516 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_008eb9d7-1945-4032-b8a1-eda75cf95201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[382856,382869] [2022-11-22 02:12:41,526 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_008eb9d7-1945-4032-b8a1-eda75cf95201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[383012,383025] [2022-11-22 02:12:41,527 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_008eb9d7-1945-4032-b8a1-eda75cf95201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[383161,383174] [2022-11-22 02:12:41,528 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_008eb9d7-1945-4032-b8a1-eda75cf95201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[383313,383326] [2022-11-22 02:12:41,528 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_008eb9d7-1945-4032-b8a1-eda75cf95201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[383464,383477] [2022-11-22 02:12:41,528 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_008eb9d7-1945-4032-b8a1-eda75cf95201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[383613,383626] [2022-11-22 02:12:41,529 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_008eb9d7-1945-4032-b8a1-eda75cf95201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[383765,383778] [2022-11-22 02:12:41,529 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_008eb9d7-1945-4032-b8a1-eda75cf95201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[383913,383926] [2022-11-22 02:12:41,530 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_008eb9d7-1945-4032-b8a1-eda75cf95201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[384066,384079] [2022-11-22 02:12:41,531 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_008eb9d7-1945-4032-b8a1-eda75cf95201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[384217,384230] [2022-11-22 02:12:41,531 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_008eb9d7-1945-4032-b8a1-eda75cf95201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[384367,384380] [2022-11-22 02:12:41,532 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_008eb9d7-1945-4032-b8a1-eda75cf95201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[384514,384527] [2022-11-22 02:12:41,532 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_008eb9d7-1945-4032-b8a1-eda75cf95201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[384665,384678] [2022-11-22 02:12:41,532 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_008eb9d7-1945-4032-b8a1-eda75cf95201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[384816,384829] [2022-11-22 02:12:41,534 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_008eb9d7-1945-4032-b8a1-eda75cf95201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[384964,384977] [2022-11-22 02:12:41,535 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_008eb9d7-1945-4032-b8a1-eda75cf95201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[385130,385143] [2022-11-22 02:12:41,535 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_008eb9d7-1945-4032-b8a1-eda75cf95201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[385299,385312] [2022-11-22 02:12:41,536 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_008eb9d7-1945-4032-b8a1-eda75cf95201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[385466,385479] [2022-11-22 02:12:41,536 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_008eb9d7-1945-4032-b8a1-eda75cf95201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[385634,385647] [2022-11-22 02:12:41,537 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_008eb9d7-1945-4032-b8a1-eda75cf95201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[385784,385797] [2022-11-22 02:12:41,537 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_008eb9d7-1945-4032-b8a1-eda75cf95201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[385931,385944] [2022-11-22 02:12:41,538 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_008eb9d7-1945-4032-b8a1-eda75cf95201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[386092,386105] [2022-11-22 02:12:41,538 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_008eb9d7-1945-4032-b8a1-eda75cf95201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[386262,386275] [2022-11-22 02:12:41,538 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_008eb9d7-1945-4032-b8a1-eda75cf95201/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i[386424,386437] [2022-11-22 02:12:41,548 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 02:12:41,792 INFO L208 MainTranslator]: Completed translation [2022-11-22 02:12:41,792 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:12:41 WrapperNode [2022-11-22 02:12:41,792 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-22 02:12:41,793 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-22 02:12:41,793 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-22 02:12:41,793 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-22 02:12:41,801 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:12:41" (1/1) ... [2022-11-22 02:12:41,899 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:12:41" (1/1) ... [2022-11-22 02:12:42,102 INFO L138 Inliner]: procedures = 675, calls = 2884, calls flagged for inlining = 316, calls inlined = 216, statements flattened = 5842 [2022-11-22 02:12:42,102 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-22 02:12:42,103 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-22 02:12:42,103 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-22 02:12:42,103 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-22 02:12:42,114 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:12:41" (1/1) ... [2022-11-22 02:12:42,114 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:12:41" (1/1) ... [2022-11-22 02:12:42,140 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:12:41" (1/1) ... [2022-11-22 02:12:42,140 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:12:41" (1/1) ... [2022-11-22 02:12:42,319 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:12:41" (1/1) ... [2022-11-22 02:12:42,336 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:12:41" (1/1) ... [2022-11-22 02:12:42,359 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:12:41" (1/1) ... [2022-11-22 02:12:42,378 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:12:41" (1/1) ... [2022-11-22 02:12:42,413 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-22 02:12:42,417 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-22 02:12:42,417 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-22 02:12:42,418 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-22 02:12:42,418 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:12:41" (1/1) ... [2022-11-22 02:12:42,425 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 02:12:42,438 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_008eb9d7-1945-4032-b8a1-eda75cf95201/bin/utaipan-g80aRyZoba/z3 [2022-11-22 02:12:42,454 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_008eb9d7-1945-4032-b8a1-eda75cf95201/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-22 02:12:42,478 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_008eb9d7-1945-4032-b8a1-eda75cf95201/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-22 02:12:42,498 INFO L130 BoogieDeclarations]: Found specification of procedure xenbus_frontend_closed [2022-11-22 02:12:42,498 INFO L138 BoogieDeclarations]: Found implementation of procedure xenbus_frontend_closed [2022-11-22 02:12:42,498 INFO L130 BoogieDeclarations]: Found specification of procedure strncmp [2022-11-22 02:12:42,498 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_coherent_check_final_state [2022-11-22 02:12:42,498 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_coherent_check_final_state [2022-11-22 02:12:42,499 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-22 02:12:42,499 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-22 02:12:42,499 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-22 02:12:42,499 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-22 02:12:42,499 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_mmc_sdio_func_check_final_state [2022-11-22 02:12:42,499 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_mmc_sdio_func_check_final_state [2022-11-22 02:12:42,500 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_genhd_del_gendisk [2022-11-22 02:12:42,500 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_genhd_del_gendisk [2022-11-22 02:12:42,500 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-11-22 02:12:42,500 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-11-22 02:12:42,500 INFO L130 BoogieDeclarations]: Found specification of procedure submit_bio [2022-11-22 02:12:42,500 INFO L138 BoogieDeclarations]: Found implementation of procedure submit_bio [2022-11-22 02:12:42,500 INFO L130 BoogieDeclarations]: Found specification of procedure queue_flag_set_unlocked [2022-11-22 02:12:42,501 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_flag_set_unlocked [2022-11-22 02:12:42,501 INFO L130 BoogieDeclarations]: Found specification of procedure gnttab_cancel_free_callback [2022-11-22 02:12:42,501 INFO L138 BoogieDeclarations]: Found implementation of procedure gnttab_cancel_free_callback [2022-11-22 02:12:42,501 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_arch_io_check_final_state [2022-11-22 02:12:42,501 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_arch_io_check_final_state [2022-11-22 02:12:42,501 INFO L130 BoogieDeclarations]: Found specification of procedure gnttab_end_foreign_access [2022-11-22 02:12:42,501 INFO L138 BoogieDeclarations]: Found implementation of procedure gnttab_end_foreign_access [2022-11-22 02:12:42,502 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_module_check_final_state [2022-11-22 02:12:42,502 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_module_check_final_state [2022-11-22 02:12:42,502 INFO L130 BoogieDeclarations]: Found specification of procedure do_blkif_request [2022-11-22 02:12:42,502 INFO L138 BoogieDeclarations]: Found implementation of procedure do_blkif_request [2022-11-22 02:12:42,502 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_pages [2022-11-22 02:12:42,502 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_pages [2022-11-22 02:12:42,502 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-11-22 02:12:42,503 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-11-22 02:12:42,503 INFO L130 BoogieDeclarations]: Found specification of procedure talk_to_blkback [2022-11-22 02:12:42,503 INFO L138 BoogieDeclarations]: Found implementation of procedure talk_to_blkback [2022-11-22 02:12:42,503 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-22 02:12:42,503 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-22 02:12:42,503 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_queue_check_final_state [2022-11-22 02:12:42,503 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_queue_check_final_state [2022-11-22 02:12:42,504 INFO L130 BoogieDeclarations]: Found specification of procedure blkfront_setup_indirect [2022-11-22 02:12:42,504 INFO L138 BoogieDeclarations]: Found implementation of procedure blkfront_setup_indirect [2022-11-22 02:12:42,504 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-22 02:12:42,504 INFO L130 BoogieDeclarations]: Found specification of procedure pfn_to_mfn [2022-11-22 02:12:42,504 INFO L138 BoogieDeclarations]: Found implementation of procedure pfn_to_mfn [2022-11-22 02:12:42,504 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2022-11-22 02:12:42,504 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2022-11-22 02:12:42,505 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_request_check_final_state [2022-11-22 02:12:42,505 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_request_check_final_state [2022-11-22 02:12:42,505 INFO L130 BoogieDeclarations]: Found specification of procedure xlvbd_release_gendisk [2022-11-22 02:12:42,505 INFO L138 BoogieDeclarations]: Found implementation of procedure xlvbd_release_gendisk [2022-11-22 02:12:42,505 INFO L130 BoogieDeclarations]: Found specification of procedure xlbd_release_minors [2022-11-22 02:12:42,505 INFO L138 BoogieDeclarations]: Found implementation of procedure xlbd_release_minors [2022-11-22 02:12:42,505 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-22 02:12:42,506 INFO L130 BoogieDeclarations]: Found specification of procedure xlvbd_flush [2022-11-22 02:12:42,506 INFO L138 BoogieDeclarations]: Found implementation of procedure xlvbd_flush [2022-11-22 02:12:42,506 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2022-11-22 02:12:42,506 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2022-11-22 02:12:42,506 INFO L130 BoogieDeclarations]: Found specification of procedure sg_page [2022-11-22 02:12:42,506 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_page [2022-11-22 02:12:42,507 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-22 02:12:42,507 INFO L130 BoogieDeclarations]: Found specification of procedure xenbus_switch_state [2022-11-22 02:12:42,507 INFO L138 BoogieDeclarations]: Found implementation of procedure xenbus_switch_state [2022-11-22 02:12:42,507 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_in_interrupt_context [2022-11-22 02:12:42,508 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_in_interrupt_context [2022-11-22 02:12:42,512 INFO L130 BoogieDeclarations]: Found specification of procedure flush_work [2022-11-22 02:12:42,512 INFO L138 BoogieDeclarations]: Found implementation of procedure flush_work [2022-11-22 02:12:42,512 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-11-22 02:12:42,513 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-11-22 02:12:42,513 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irq_112 [2022-11-22 02:12:42,513 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irq_112 [2022-11-22 02:12:42,513 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_bh_check_final_state [2022-11-22 02:12:42,513 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_bh_check_final_state [2022-11-22 02:12:42,513 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-22 02:12:42,515 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_genhd_check_final_state [2022-11-22 02:12:42,515 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_genhd_check_final_state [2022-11-22 02:12:42,515 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_after_alloc [2022-11-22 02:12:42,515 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_after_alloc [2022-11-22 02:12:42,515 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-22 02:12:42,516 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-22 02:12:42,516 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_register_reset_error_counter [2022-11-22 02:12:42,516 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_register_reset_error_counter [2022-11-22 02:12:42,516 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-11-22 02:12:42,516 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-11-22 02:12:42,516 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2022-11-22 02:12:42,516 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2022-11-22 02:12:42,516 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_blkdev [2022-11-22 02:12:42,517 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_blkdev [2022-11-22 02:12:42,517 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_lib_idr_check_final_state [2022-11-22 02:12:42,517 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_lib_idr_check_final_state [2022-11-22 02:12:42,517 INFO L130 BoogieDeclarations]: Found specification of procedure get_grant [2022-11-22 02:12:42,517 INFO L138 BoogieDeclarations]: Found implementation of procedure get_grant [2022-11-22 02:12:42,517 INFO L130 BoogieDeclarations]: Found specification of procedure sg_next [2022-11-22 02:12:42,517 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_next [2022-11-22 02:12:42,517 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_srcu_check_final_state [2022-11-22 02:12:42,518 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_srcu_check_final_state [2022-11-22 02:12:42,518 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-22 02:12:42,518 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_calloc [2022-11-22 02:12:42,518 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_calloc [2022-11-22 02:12:42,518 INFO L130 BoogieDeclarations]: Found specification of procedure get_phys_to_machine [2022-11-22 02:12:42,518 INFO L138 BoogieDeclarations]: Found implementation of procedure get_phys_to_machine [2022-11-22 02:12:42,518 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2022-11-22 02:12:42,518 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2022-11-22 02:12:42,519 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-22 02:12:42,519 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_lock_bd_mutex_of_block_device [2022-11-22 02:12:42,519 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_lock_bd_mutex_of_block_device [2022-11-22 02:12:42,519 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-22 02:12:42,519 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-22 02:12:42,519 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-22 02:12:42,519 INFO L130 BoogieDeclarations]: Found specification of procedure __blk_end_request_all [2022-11-22 02:12:42,520 INFO L138 BoogieDeclarations]: Found implementation of procedure __blk_end_request_all [2022-11-22 02:12:42,520 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-11-22 02:12:42,520 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2022-11-22 02:12:42,520 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2022-11-22 02:12:42,520 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_spinlock_spin_unlock_io_lock_of_blkfront_info [2022-11-22 02:12:42,520 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_spinlock_spin_unlock_io_lock_of_blkfront_info [2022-11-22 02:12:42,520 INFO L130 BoogieDeclarations]: Found specification of procedure kmap_atomic [2022-11-22 02:12:42,521 INFO L138 BoogieDeclarations]: Found implementation of procedure kmap_atomic [2022-11-22 02:12:42,521 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_unlock_blkfront_mutex [2022-11-22 02:12:42,521 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_unlock_blkfront_mutex [2022-11-22 02:12:42,521 INFO L130 BoogieDeclarations]: Found specification of procedure blkif_free [2022-11-22 02:12:42,522 INFO L138 BoogieDeclarations]: Found implementation of procedure blkif_free [2022-11-22 02:12:42,522 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_register_reset_error_counter [2022-11-22 02:12:42,522 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_register_reset_error_counter [2022-11-22 02:12:42,522 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2022-11-22 02:12:42,523 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2022-11-22 02:12:42,523 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-22 02:12:42,523 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-22 02:12:42,523 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_lock_mutex_of_blkfront_info [2022-11-22 02:12:42,523 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_lock_mutex_of_blkfront_info [2022-11-22 02:12:42,523 INFO L130 BoogieDeclarations]: Found specification of procedure blk_stop_queue [2022-11-22 02:12:42,523 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_stop_queue [2022-11-22 02:12:42,523 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_unlock_mutex_of_blkfront_info [2022-11-22 02:12:42,524 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_unlock_mutex_of_blkfront_info [2022-11-22 02:12:42,524 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-22 02:12:42,524 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-22 02:12:42,524 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-22 02:12:42,524 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-22 02:12:42,524 INFO L130 BoogieDeclarations]: Found specification of procedure bdput [2022-11-22 02:12:42,524 INFO L138 BoogieDeclarations]: Found implementation of procedure bdput [2022-11-22 02:12:42,524 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-11-22 02:12:42,525 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-11-22 02:12:42,525 INFO L130 BoogieDeclarations]: Found specification of procedure del_gendisk [2022-11-22 02:12:42,525 INFO L138 BoogieDeclarations]: Found implementation of procedure del_gendisk [2022-11-22 02:12:42,525 INFO L130 BoogieDeclarations]: Found specification of procedure xenbus_transaction_end [2022-11-22 02:12:42,525 INFO L138 BoogieDeclarations]: Found implementation of procedure xenbus_transaction_end [2022-11-22 02:12:42,525 INFO L130 BoogieDeclarations]: Found specification of procedure set_capacity [2022-11-22 02:12:42,525 INFO L138 BoogieDeclarations]: Found implementation of procedure set_capacity [2022-11-22 02:12:42,525 INFO L130 BoogieDeclarations]: Found specification of procedure blk_rq_sectors [2022-11-22 02:12:42,526 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_rq_sectors [2022-11-22 02:12:42,526 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-22 02:12:42,526 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-22 02:12:42,526 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_sock_check_final_state [2022-11-22 02:12:42,526 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_sock_check_final_state [2022-11-22 02:12:42,526 INFO L130 BoogieDeclarations]: Found specification of procedure blk_rq_pos [2022-11-22 02:12:42,526 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_rq_pos [2022-11-22 02:12:42,526 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_gadget_check_final_state [2022-11-22 02:12:42,527 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_gadget_check_final_state [2022-11-22 02:12:42,527 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-22 02:12:42,527 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-11-22 02:12:42,527 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-11-22 02:12:42,527 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_fs_sysfs_check_final_state [2022-11-22 02:12:42,527 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_fs_sysfs_check_final_state [2022-11-22 02:12:42,527 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-22 02:12:42,527 INFO L130 BoogieDeclarations]: Found specification of procedure __free_pages [2022-11-22 02:12:42,528 INFO L138 BoogieDeclarations]: Found implementation of procedure __free_pages [2022-11-22 02:12:42,528 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_107 [2022-11-22 02:12:42,528 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_107 [2022-11-22 02:12:42,528 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2022-11-22 02:12:42,528 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2022-11-22 02:12:42,528 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-22 02:12:42,528 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_unlock_bd_mutex_of_block_device [2022-11-22 02:12:42,528 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_unlock_bd_mutex_of_block_device [2022-11-22 02:12:42,529 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-11-22 02:12:42,529 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-11-22 02:12:42,529 INFO L130 BoogieDeclarations]: Found specification of procedure get_capacity [2022-11-22 02:12:42,529 INFO L138 BoogieDeclarations]: Found implementation of procedure get_capacity [2022-11-22 02:12:42,529 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_rtnetlink_check_final_state [2022-11-22 02:12:42,530 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_rtnetlink_check_final_state [2022-11-22 02:12:42,530 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_lock_blkfront_mutex [2022-11-22 02:12:42,530 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_lock_blkfront_mutex [2022-11-22 02:12:42,530 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-11-22 02:12:42,530 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-11-22 02:12:42,530 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-11-22 02:12:42,530 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-11-22 02:12:42,530 INFO L130 BoogieDeclarations]: Found specification of procedure blk_requeue_request [2022-11-22 02:12:42,531 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_requeue_request [2022-11-22 02:12:42,531 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2022-11-22 02:12:42,531 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2022-11-22 02:12:42,531 INFO L130 BoogieDeclarations]: Found specification of procedure bio_segments [2022-11-22 02:12:42,531 INFO L138 BoogieDeclarations]: Found implementation of procedure bio_segments [2022-11-22 02:12:42,531 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_check_final_state [2022-11-22 02:12:42,531 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_check_final_state [2022-11-22 02:12:42,531 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2022-11-22 02:12:42,532 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2022-11-22 02:12:42,532 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_urb_check_final_state [2022-11-22 02:12:42,532 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_urb_check_final_state [2022-11-22 02:12:42,536 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_linux_kernel_locking_spinlock_spin_lock [2022-11-22 02:12:42,536 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_linux_kernel_locking_spinlock_spin_lock [2022-11-22 02:12:42,536 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_spinlock_spin_lock_io_lock_of_blkfront_info [2022-11-22 02:12:42,536 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_spinlock_spin_lock_io_lock_of_blkfront_info [2022-11-22 02:12:42,536 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_rwlock_check_final_state [2022-11-22 02:12:42,536 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_rwlock_check_final_state [2022-11-22 02:12:42,537 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-22 02:12:42,537 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-22 02:12:42,537 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2022-11-22 02:12:42,537 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2022-11-22 02:12:42,537 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-22 02:12:42,537 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_fs_char_dev_check_final_state [2022-11-22 02:12:42,537 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_fs_char_dev_check_final_state [2022-11-22 02:12:42,537 INFO L130 BoogieDeclarations]: Found specification of procedure kick_pending_request_queues [2022-11-22 02:12:42,538 INFO L138 BoogieDeclarations]: Found implementation of procedure kick_pending_request_queues [2022-11-22 02:12:42,538 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-22 02:12:42,538 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-22 02:12:42,538 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_96 [2022-11-22 02:12:42,538 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_96 [2022-11-22 02:12:42,538 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_drivers_base_class_check_final_state [2022-11-22 02:12:42,538 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_drivers_base_class_check_final_state [2022-11-22 02:12:42,538 INFO L130 BoogieDeclarations]: Found specification of procedure strrchr [2022-11-22 02:12:42,539 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_97 [2022-11-22 02:12:42,539 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_97 [2022-11-22 02:12:42,539 INFO L130 BoogieDeclarations]: Found specification of procedure bdget_disk [2022-11-22 02:12:42,539 INFO L138 BoogieDeclarations]: Found implementation of procedure bdget_disk [2022-11-22 02:12:42,539 INFO L130 BoogieDeclarations]: Found specification of procedure bio_list_merge [2022-11-22 02:12:42,539 INFO L138 BoogieDeclarations]: Found implementation of procedure bio_list_merge [2022-11-22 02:12:42,540 INFO L130 BoogieDeclarations]: Found specification of procedure blk_queue_max_segments [2022-11-22 02:12:42,540 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_queue_max_segments [2022-11-22 02:12:42,540 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-11-22 02:12:42,540 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-11-22 02:12:42,540 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_sched_check_final_state [2022-11-22 02:12:42,540 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_sched_check_final_state [2022-11-22 02:12:42,540 INFO L130 BoogieDeclarations]: Found specification of procedure encode_disk_name [2022-11-22 02:12:42,540 INFO L138 BoogieDeclarations]: Found implementation of procedure encode_disk_name [2022-11-22 02:12:42,541 INFO L130 BoogieDeclarations]: Found specification of procedure __kunmap_atomic [2022-11-22 02:12:42,541 INFO L138 BoogieDeclarations]: Found implementation of procedure __kunmap_atomic [2022-11-22 02:12:42,541 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-22 02:12:42,541 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_irq_111 [2022-11-22 02:12:42,541 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_irq_111 [2022-11-22 02:12:43,494 INFO L235 CfgBuilder]: Building ICFG [2022-11-22 02:12:43,498 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-22 02:12:44,038 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-22 02:13:00,332 INFO L276 CfgBuilder]: Performing block encoding [2022-11-22 02:13:02,080 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-22 02:13:02,080 INFO L300 CfgBuilder]: Removed 5 assume(true) statements. [2022-11-22 02:13:02,086 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:13:02 BoogieIcfgContainer [2022-11-22 02:13:02,086 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-22 02:13:02,089 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-22 02:13:02,089 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-22 02:13:02,093 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-22 02:13:02,093 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 02:12:36" (1/3) ... [2022-11-22 02:13:02,095 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5da7258 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 02:13:02, skipping insertion in model container [2022-11-22 02:13:02,096 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:12:41" (2/3) ... [2022-11-22 02:13:02,096 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5da7258 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 02:13:02, skipping insertion in model container [2022-11-22 02:13:02,096 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:13:02" (3/3) ... [2022-11-22 02:13:02,098 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.0-rc1---drivers--block--xen-blkfront.ko.cil.i [2022-11-22 02:13:02,122 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-22 02:13:02,123 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 34 error locations. [2022-11-22 02:13:02,254 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-22 02:13:02,264 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;@7cf34c27, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-22 02:13:02,264 INFO L358 AbstractCegarLoop]: Starting to check reachability of 34 error locations. [2022-11-22 02:13:02,278 INFO L276 IsEmpty]: Start isEmpty. Operand has 1269 states, 752 states have (on average 1.3430851063829787) internal successors, (1010), 812 states have internal predecessors, (1010), 374 states have call successors, (374), 109 states have call predecessors, (374), 108 states have return successors, (370), 368 states have call predecessors, (370), 370 states have call successors, (370) [2022-11-22 02:13:02,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-11-22 02:13:02,291 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:13:02,292 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 02:13:02,293 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_linux_arch_io_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-11-22 02:13:02,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:13:02,302 INFO L85 PathProgramCache]: Analyzing trace with hash -1338110076, now seen corresponding path program 1 times [2022-11-22 02:13:02,315 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:13:02,316 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2063664074] [2022-11-22 02:13:02,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:13:02,316 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:13:02,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:13:03,408 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 02:13:03,409 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:13:03,409 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2063664074] [2022-11-22 02:13:03,410 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2063664074] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:13:03,415 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:13:03,415 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 02:13:03,419 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [87641516] [2022-11-22 02:13:03,420 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:13:03,423 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 02:13:03,423 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:13:03,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 02:13:03,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 02:13:03,474 INFO L87 Difference]: Start difference. First operand has 1269 states, 752 states have (on average 1.3430851063829787) internal successors, (1010), 812 states have internal predecessors, (1010), 374 states have call successors, (374), 109 states have call predecessors, (374), 108 states have return successors, (370), 368 states have call predecessors, (370), 370 states have call successors, (370) 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 02:13:07,322 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:13:10,619 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:13:12,730 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.49s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:13:13,884 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:13:16,934 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:13:17,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:13:17,010 INFO L93 Difference]: Finished difference Result 2696 states and 3830 transitions. [2022-11-22 02:13:17,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 02:13:17,013 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 02:13:17,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:13:17,038 INFO L225 Difference]: With dead ends: 2696 [2022-11-22 02:13:17,039 INFO L226 Difference]: Without dead ends: 1439 [2022-11-22 02:13:17,060 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 02:13:17,064 INFO L413 NwaCegarLoop]: 1512 mSDtfsCounter, 1699 mSDsluCounter, 1707 mSDsCounter, 0 mSdLazyCounter, 556 mSolverCounterSat, 0 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1702 SdHoareTripleChecker+Valid, 3219 SdHoareTripleChecker+Invalid, 559 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 556 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.2s IncrementalHoareTripleChecker+Time [2022-11-22 02:13:17,064 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1702 Valid, 3219 Invalid, 559 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 556 Invalid, 3 Unknown, 0 Unchecked, 13.2s Time] [2022-11-22 02:13:17,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1439 states. [2022-11-22 02:13:17,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1439 to 1435. [2022-11-22 02:13:17,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1435 states, 852 states have (on average 1.2875586854460095) internal successors, (1097), 915 states have internal predecessors, (1097), 423 states have call successors, (423), 128 states have call predecessors, (423), 127 states have return successors, (421), 416 states have call predecessors, (421), 421 states have call successors, (421) [2022-11-22 02:13:17,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1435 states to 1435 states and 1941 transitions. [2022-11-22 02:13:17,264 INFO L78 Accepts]: Start accepts. Automaton has 1435 states and 1941 transitions. Word has length 38 [2022-11-22 02:13:17,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:13:17,264 INFO L495 AbstractCegarLoop]: Abstraction has 1435 states and 1941 transitions. [2022-11-22 02:13:17,265 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 02:13:17,265 INFO L276 IsEmpty]: Start isEmpty. Operand 1435 states and 1941 transitions. [2022-11-22 02:13:17,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-11-22 02:13:17,268 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:13:17,269 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 02:13:17,342 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-22 02:13:17,342 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_linux_block_genhd_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-11-22 02:13:17,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:13:17,343 INFO L85 PathProgramCache]: Analyzing trace with hash 749012634, now seen corresponding path program 1 times [2022-11-22 02:13:17,343 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:13:17,343 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [349399086] [2022-11-22 02:13:17,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:13:17,344 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:13:17,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:13:17,878 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 02:13:17,878 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:13:17,878 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [349399086] [2022-11-22 02:13:17,878 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [349399086] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:13:17,878 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:13:17,879 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 02:13:17,879 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1051866948] [2022-11-22 02:13:17,879 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:13:17,881 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 02:13:17,884 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:13:17,885 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 02:13:17,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 02:13:17,885 INFO L87 Difference]: Start difference. First operand 1435 states and 1941 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 02:13:20,654 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:13:24,528 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:13:28,067 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:13:30,259 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:13:32,865 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.94s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:13:33,887 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:13:34,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:13:34,076 INFO L93 Difference]: Finished difference Result 2495 states and 3368 transitions. [2022-11-22 02:13:34,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-22 02:13:34,076 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 02:13:34,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:13:34,094 INFO L225 Difference]: With dead ends: 2495 [2022-11-22 02:13:34,094 INFO L226 Difference]: Without dead ends: 2493 [2022-11-22 02:13:34,097 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 02:13:34,098 INFO L413 NwaCegarLoop]: 1970 mSDtfsCounter, 1434 mSDsluCounter, 3386 mSDsCounter, 0 mSdLazyCounter, 880 mSolverCounterSat, 2 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1437 SdHoareTripleChecker+Valid, 5356 SdHoareTripleChecker+Invalid, 885 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 880 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.9s IncrementalHoareTripleChecker+Time [2022-11-22 02:13:34,098 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1437 Valid, 5356 Invalid, 885 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 880 Invalid, 3 Unknown, 0 Unchecked, 15.9s Time] [2022-11-22 02:13:34,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2493 states. [2022-11-22 02:13:34,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2493 to 2326. [2022-11-22 02:13:34,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2326 states, 1382 states have (on average 1.284370477568741) internal successors, (1775), 1469 states have internal predecessors, (1775), 703 states have call successors, (703), 209 states have call predecessors, (703), 208 states have return successors, (710), 689 states have call predecessors, (710), 701 states have call successors, (710) [2022-11-22 02:13:34,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2326 states to 2326 states and 3188 transitions. [2022-11-22 02:13:34,259 INFO L78 Accepts]: Start accepts. Automaton has 2326 states and 3188 transitions. Word has length 43 [2022-11-22 02:13:34,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:13:34,259 INFO L495 AbstractCegarLoop]: Abstraction has 2326 states and 3188 transitions. [2022-11-22 02:13:34,260 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 02:13:34,260 INFO L276 IsEmpty]: Start isEmpty. Operand 2326 states and 3188 transitions. [2022-11-22 02:13:34,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-11-22 02:13:34,269 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:13:34,270 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 02:13:34,270 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-22 02:13:34,270 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_linux_block_queue_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-11-22 02:13:34,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:13:34,271 INFO L85 PathProgramCache]: Analyzing trace with hash -707052296, now seen corresponding path program 1 times [2022-11-22 02:13:34,271 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:13:34,271 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1634155976] [2022-11-22 02:13:34,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:13:34,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:13:34,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:13:34,734 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 02:13:34,734 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:13:34,735 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1634155976] [2022-11-22 02:13:34,735 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1634155976] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:13:34,735 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:13:34,735 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 02:13:34,735 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1873306541] [2022-11-22 02:13:34,736 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:13:34,736 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 02:13:34,736 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:13:34,737 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 02:13:34,737 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 02:13:34,737 INFO L87 Difference]: Start difference. First operand 2326 states and 3188 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 02:13:37,530 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:13:40,678 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:13:44,915 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:13:48,224 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:13:49,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:13:49,157 INFO L93 Difference]: Finished difference Result 3531 states and 4824 transitions. [2022-11-22 02:13:49,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-22 02:13:49,158 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 02:13:49,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:13:49,183 INFO L225 Difference]: With dead ends: 3531 [2022-11-22 02:13:49,183 INFO L226 Difference]: Without dead ends: 3529 [2022-11-22 02:13:49,186 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 02:13:49,188 INFO L413 NwaCegarLoop]: 1799 mSDtfsCounter, 1650 mSDsluCounter, 3207 mSDsCounter, 0 mSdLazyCounter, 760 mSolverCounterSat, 3 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1653 SdHoareTripleChecker+Valid, 5006 SdHoareTripleChecker+Invalid, 766 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 760 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.1s IncrementalHoareTripleChecker+Time [2022-11-22 02:13:49,188 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1653 Valid, 5006 Invalid, 766 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 760 Invalid, 3 Unknown, 0 Unchecked, 14.1s Time] [2022-11-22 02:13:49,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3529 states. [2022-11-22 02:13:49,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3529 to 3357. [2022-11-22 02:13:49,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3357 states, 2004 states have (on average 1.2894211576846308) internal successors, (2584), 2117 states have internal predecessors, (2584), 1023 states have call successors, (1023), 298 states have call predecessors, (1023), 297 states have return successors, (1039), 1001 states have call predecessors, (1039), 1021 states have call successors, (1039) [2022-11-22 02:13:49,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3357 states to 3357 states and 4646 transitions. [2022-11-22 02:13:49,387 INFO L78 Accepts]: Start accepts. Automaton has 3357 states and 4646 transitions. Word has length 48 [2022-11-22 02:13:49,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:13:49,388 INFO L495 AbstractCegarLoop]: Abstraction has 3357 states and 4646 transitions. [2022-11-22 02:13:49,388 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 02:13:49,388 INFO L276 IsEmpty]: Start isEmpty. Operand 3357 states and 4646 transitions. [2022-11-22 02:13:49,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-11-22 02:13:49,390 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:13:49,390 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 02:13:49,390 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-22 02:13:49,390 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_linux_block_request_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-11-22 02:13:49,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:13:49,391 INFO L85 PathProgramCache]: Analyzing trace with hash -332909940, now seen corresponding path program 1 times [2022-11-22 02:13:49,391 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:13:49,391 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1020146882] [2022-11-22 02:13:49,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:13:49,392 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:13:49,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:13:49,754 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 02:13:49,754 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:13:49,754 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1020146882] [2022-11-22 02:13:49,755 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1020146882] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:13:49,755 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:13:49,755 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 02:13:49,755 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1670545301] [2022-11-22 02:13:49,755 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:13:49,755 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 02:13:49,756 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:13:49,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 02:13:49,756 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 02:13:49,756 INFO L87 Difference]: Start difference. First operand 3357 states and 4646 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 02:13:53,283 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:13:56,273 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:13:59,254 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:14:01,264 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:14:02,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:14:02,223 INFO L93 Difference]: Finished difference Result 3361 states and 4650 transitions. [2022-11-22 02:14:02,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 02:14:02,224 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 02:14:02,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:14:02,243 INFO L225 Difference]: With dead ends: 3361 [2022-11-22 02:14:02,244 INFO L226 Difference]: Without dead ends: 3359 [2022-11-22 02:14:02,246 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 02:14:02,247 INFO L413 NwaCegarLoop]: 1496 mSDtfsCounter, 1679 mSDsluCounter, 1689 mSDsCounter, 0 mSdLazyCounter, 554 mSolverCounterSat, 0 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1682 SdHoareTripleChecker+Valid, 3185 SdHoareTripleChecker+Invalid, 557 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 554 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.3s IncrementalHoareTripleChecker+Time [2022-11-22 02:14:02,248 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1682 Valid, 3185 Invalid, 557 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 554 Invalid, 3 Unknown, 0 Unchecked, 12.3s Time] [2022-11-22 02:14:02,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3359 states. [2022-11-22 02:14:02,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3359 to 3357. [2022-11-22 02:14:02,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3357 states, 2004 states have (on average 1.2889221556886228) internal successors, (2583), 2117 states have internal predecessors, (2583), 1023 states have call successors, (1023), 298 states have call predecessors, (1023), 298 states have return successors, (1040), 1002 states have call predecessors, (1040), 1021 states have call successors, (1040) [2022-11-22 02:14:02,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3357 states to 3357 states and 4646 transitions. [2022-11-22 02:14:02,464 INFO L78 Accepts]: Start accepts. Automaton has 3357 states and 4646 transitions. Word has length 53 [2022-11-22 02:14:02,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:14:02,465 INFO L495 AbstractCegarLoop]: Abstraction has 3357 states and 4646 transitions. [2022-11-22 02:14:02,465 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 02:14:02,465 INFO L276 IsEmpty]: Start isEmpty. Operand 3357 states and 4646 transitions. [2022-11-22 02:14:02,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-11-22 02:14:02,466 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:14:02,466 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 02:14:02,467 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-22 02:14:02,467 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_linux_drivers_base_class_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-11-22 02:14:02,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:14:02,468 INFO L85 PathProgramCache]: Analyzing trace with hash -807591760, now seen corresponding path program 1 times [2022-11-22 02:14:02,468 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:14:02,468 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2013636816] [2022-11-22 02:14:02,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:14:02,468 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:14:02,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:14:02,804 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 02:14:02,805 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:14:02,805 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2013636816] [2022-11-22 02:14:02,805 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2013636816] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:14:02,805 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:14:02,805 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 02:14:02,805 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1714454571] [2022-11-22 02:14:02,805 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:14:02,806 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 02:14:02,806 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:14:02,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 02:14:02,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 02:14:02,807 INFO L87 Difference]: Start difference. First operand 3357 states and 4646 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 02:14:05,894 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:14:08,869 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:14:12,432 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.78s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:14:14,048 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.41s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:14:14,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:14:14,125 INFO L93 Difference]: Finished difference Result 3359 states and 4648 transitions. [2022-11-22 02:14:14,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 02:14:14,126 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 02:14:14,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:14:14,142 INFO L225 Difference]: With dead ends: 3359 [2022-11-22 02:14:14,142 INFO L226 Difference]: Without dead ends: 3357 [2022-11-22 02:14:14,144 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 02:14:14,145 INFO L413 NwaCegarLoop]: 1494 mSDtfsCounter, 1676 mSDsluCounter, 1687 mSDsCounter, 0 mSdLazyCounter, 556 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1679 SdHoareTripleChecker+Valid, 3181 SdHoareTripleChecker+Invalid, 557 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 556 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.0s IncrementalHoareTripleChecker+Time [2022-11-22 02:14:14,145 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1679 Valid, 3181 Invalid, 557 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 556 Invalid, 1 Unknown, 0 Unchecked, 11.0s Time] [2022-11-22 02:14:14,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3357 states. [2022-11-22 02:14:14,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3357 to 3355. [2022-11-22 02:14:14,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3355 states, 2003 states have (on average 1.288567149276086) internal successors, (2581), 2115 states have internal predecessors, (2581), 1023 states have call successors, (1023), 298 states have call predecessors, (1023), 298 states have return successors, (1040), 1002 states have call predecessors, (1040), 1021 states have call successors, (1040) [2022-11-22 02:14:14,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3355 states to 3355 states and 4644 transitions. [2022-11-22 02:14:14,382 INFO L78 Accepts]: Start accepts. Automaton has 3355 states and 4644 transitions. Word has length 58 [2022-11-22 02:14:14,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:14:14,383 INFO L495 AbstractCegarLoop]: Abstraction has 3355 states and 4644 transitions. [2022-11-22 02:14:14,383 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 02:14:14,383 INFO L276 IsEmpty]: Start isEmpty. Operand 3355 states and 4644 transitions. [2022-11-22 02:14:14,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-11-22 02:14:14,385 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:14:14,386 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 02:14:14,386 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-22 02:14:14,386 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_linux_fs_char_dev_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-11-22 02:14:14,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:14:14,387 INFO L85 PathProgramCache]: Analyzing trace with hash -479904184, now seen corresponding path program 1 times [2022-11-22 02:14:14,387 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:14:14,387 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1495004516] [2022-11-22 02:14:14,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:14:14,388 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:14:14,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:14:14,731 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 02:14:14,732 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:14:14,732 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1495004516] [2022-11-22 02:14:14,732 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1495004516] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:14:14,732 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:14:14,732 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 02:14:14,732 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [272723815] [2022-11-22 02:14:14,732 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:14:14,733 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 02:14:14,733 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:14:14,733 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 02:14:14,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 02:14:14,734 INFO L87 Difference]: Start difference. First operand 3355 states and 4644 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 02:14:17,492 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:14:21,108 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:14:24,062 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.59s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:14:26,949 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:14:28,694 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:14:29,786 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:14:30,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:14:30,044 INFO L93 Difference]: Finished difference Result 5334 states and 7343 transitions. [2022-11-22 02:14:30,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-22 02:14:30,045 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 02:14:30,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:14:30,082 INFO L225 Difference]: With dead ends: 5334 [2022-11-22 02:14:30,082 INFO L226 Difference]: Without dead ends: 5332 [2022-11-22 02:14:30,086 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 02:14:30,087 INFO L413 NwaCegarLoop]: 1979 mSDtfsCounter, 1461 mSDsluCounter, 3391 mSDsCounter, 0 mSdLazyCounter, 874 mSolverCounterSat, 1 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1464 SdHoareTripleChecker+Valid, 5370 SdHoareTripleChecker+Invalid, 878 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 874 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.9s IncrementalHoareTripleChecker+Time [2022-11-22 02:14:30,088 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1464 Valid, 5370 Invalid, 878 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 874 Invalid, 3 Unknown, 0 Unchecked, 14.9s Time] [2022-11-22 02:14:30,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5332 states. [2022-11-22 02:14:30,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5332 to 5196. [2022-11-22 02:14:30,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5196 states, 3095 states have (on average 1.2840064620355411) internal successors, (3974), 3254 states have internal predecessors, (3974), 1601 states have call successors, (1601), 469 states have call predecessors, (1601), 469 states have return successors, (1628), 1567 states have call predecessors, (1628), 1599 states have call successors, (1628) [2022-11-22 02:14:30,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5196 states to 5196 states and 7203 transitions. [2022-11-22 02:14:30,478 INFO L78 Accepts]: Start accepts. Automaton has 5196 states and 7203 transitions. Word has length 63 [2022-11-22 02:14:30,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:14:30,479 INFO L495 AbstractCegarLoop]: Abstraction has 5196 states and 7203 transitions. [2022-11-22 02:14:30,480 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 02:14:30,480 INFO L276 IsEmpty]: Start isEmpty. Operand 5196 states and 7203 transitions. [2022-11-22 02:14:30,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-11-22 02:14:30,482 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:14:30,482 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 02:14:30,482 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-22 02:14:30,482 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-11-22 02:14:30,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:14:30,483 INFO L85 PathProgramCache]: Analyzing trace with hash -189638228, now seen corresponding path program 1 times [2022-11-22 02:14:30,483 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:14:30,483 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1578242322] [2022-11-22 02:14:30,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:14:30,484 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:14:30,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:14:30,804 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 02:14:30,804 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:14:30,804 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1578242322] [2022-11-22 02:14:30,804 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1578242322] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:14:30,804 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:14:30,804 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 02:14:30,805 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1495561350] [2022-11-22 02:14:30,805 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:14:30,805 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 02:14:30,805 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:14:30,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 02:14:30,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 02:14:30,806 INFO L87 Difference]: Start difference. First operand 5196 states and 7203 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 02:14:34,283 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:14:37,364 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:14:39,169 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:14:40,807 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:14:43,044 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:14:43,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:14:43,176 INFO L93 Difference]: Finished difference Result 5198 states and 7205 transitions. [2022-11-22 02:14:43,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 02:14:43,177 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 02:14:43,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:14:43,206 INFO L225 Difference]: With dead ends: 5198 [2022-11-22 02:14:43,206 INFO L226 Difference]: Without dead ends: 5196 [2022-11-22 02:14:43,210 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 02:14:43,211 INFO L413 NwaCegarLoop]: 1492 mSDtfsCounter, 1672 mSDsluCounter, 1685 mSDsCounter, 0 mSdLazyCounter, 555 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1675 SdHoareTripleChecker+Valid, 3177 SdHoareTripleChecker+Invalid, 557 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 555 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.0s IncrementalHoareTripleChecker+Time [2022-11-22 02:14:43,212 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1675 Valid, 3177 Invalid, 557 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 555 Invalid, 2 Unknown, 0 Unchecked, 12.0s Time] [2022-11-22 02:14:43,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5196 states. [2022-11-22 02:14:43,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5196 to 5194. [2022-11-22 02:14:43,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5194 states, 3094 states have (on average 1.283775048480931) internal successors, (3972), 3252 states have internal predecessors, (3972), 1601 states have call successors, (1601), 469 states have call predecessors, (1601), 469 states have return successors, (1628), 1567 states have call predecessors, (1628), 1599 states have call successors, (1628) [2022-11-22 02:14:43,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5194 states to 5194 states and 7201 transitions. [2022-11-22 02:14:43,651 INFO L78 Accepts]: Start accepts. Automaton has 5194 states and 7201 transitions. Word has length 68 [2022-11-22 02:14:43,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:14:43,652 INFO L495 AbstractCegarLoop]: Abstraction has 5194 states and 7201 transitions. [2022-11-22 02:14:43,652 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 02:14:43,653 INFO L276 IsEmpty]: Start isEmpty. Operand 5194 states and 7201 transitions. [2022-11-22 02:14:43,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-11-22 02:14:43,655 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:14:43,656 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 02:14:43,656 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-22 02:14:43,656 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_linux_kernel_locking_rwlock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-11-22 02:14:43,656 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:14:43,657 INFO L85 PathProgramCache]: Analyzing trace with hash 877812934, now seen corresponding path program 1 times [2022-11-22 02:14:43,657 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:14:43,657 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1730290164] [2022-11-22 02:14:43,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:14:43,657 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:14:43,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:14:43,983 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 02:14:43,983 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:14:43,984 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1730290164] [2022-11-22 02:14:43,984 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1730290164] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:14:43,984 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:14:43,984 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 02:14:43,984 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [609942177] [2022-11-22 02:14:43,984 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:14:43,985 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 02:14:43,985 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:14:43,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 02:14:43,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 02:14:43,986 INFO L87 Difference]: Start difference. First operand 5194 states and 7201 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 02:14:46,884 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.40s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:14:49,990 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:14:53,119 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:14:53,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:14:53,548 INFO L93 Difference]: Finished difference Result 5751 states and 7923 transitions. [2022-11-22 02:14:53,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 02:14:53,548 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 02:14:53,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:14:53,580 INFO L225 Difference]: With dead ends: 5751 [2022-11-22 02:14:53,581 INFO L226 Difference]: Without dead ends: 5749 [2022-11-22 02:14:53,583 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 02:14:53,584 INFO L413 NwaCegarLoop]: 1488 mSDtfsCounter, 1665 mSDsluCounter, 1677 mSDsCounter, 0 mSdLazyCounter, 553 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1668 SdHoareTripleChecker+Valid, 3165 SdHoareTripleChecker+Invalid, 555 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 553 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.1s IncrementalHoareTripleChecker+Time [2022-11-22 02:14:53,584 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1668 Valid, 3165 Invalid, 555 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 553 Invalid, 2 Unknown, 0 Unchecked, 9.1s Time] [2022-11-22 02:14:53,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5749 states. [2022-11-22 02:14:53,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5749 to 5274. [2022-11-22 02:14:53,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5274 states, 3141 states have (on average 1.2839859917223815) internal successors, (4033), 3301 states have internal predecessors, (4033), 1625 states have call successors, (1625), 479 states have call predecessors, (1625), 479 states have return successors, (1652), 1585 states have call predecessors, (1652), 1623 states have call successors, (1652) [2022-11-22 02:14:53,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5274 states to 5274 states and 7310 transitions. [2022-11-22 02:14:53,920 INFO L78 Accepts]: Start accepts. Automaton has 5274 states and 7310 transitions. Word has length 73 [2022-11-22 02:14:53,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:14:53,921 INFO L495 AbstractCegarLoop]: Abstraction has 5274 states and 7310 transitions. [2022-11-22 02:14:53,921 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 02:14:53,921 INFO L276 IsEmpty]: Start isEmpty. Operand 5274 states and 7310 transitions. [2022-11-22 02:14:53,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2022-11-22 02:14:53,923 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:14:53,923 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:14:53,923 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-22 02:14:53,923 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-11-22 02:14:53,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:14:53,924 INFO L85 PathProgramCache]: Analyzing trace with hash 1408313959, now seen corresponding path program 1 times [2022-11-22 02:14:53,924 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:14:53,924 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [166344689] [2022-11-22 02:14:53,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:14:53,925 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:14:54,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:14:55,039 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2022-11-22 02:14:55,040 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:14:55,040 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [166344689] [2022-11-22 02:14:55,040 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [166344689] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:14:55,040 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:14:55,040 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-22 02:14:55,040 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [976992644] [2022-11-22 02:14:55,041 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:14:55,041 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-22 02:14:55,041 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:14:55,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-22 02:14:55,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-22 02:14:55,042 INFO L87 Difference]: Start difference. First operand 5274 states and 7310 transitions. Second operand has 6 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 3 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-22 02:14:58,782 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:15:02,285 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:15:07,562 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:15:11,159 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:15:13,173 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:15:15,321 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.52s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:15:17,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:15:17,610 INFO L93 Difference]: Finished difference Result 5276 states and 7312 transitions. [2022-11-22 02:15:17,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-22 02:15:17,610 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 3 states have call predecessors, (11), 2 states have call successors, (11) Word has length 88 [2022-11-22 02:15:17,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:15:17,630 INFO L225 Difference]: With dead ends: 5276 [2022-11-22 02:15:17,631 INFO L226 Difference]: Without dead ends: 5274 [2022-11-22 02:15:17,633 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-11-22 02:15:17,634 INFO L413 NwaCegarLoop]: 1489 mSDtfsCounter, 1667 mSDsluCounter, 3914 mSDsCounter, 0 mSdLazyCounter, 1798 mSolverCounterSat, 0 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1673 SdHoareTripleChecker+Valid, 5403 SdHoareTripleChecker+Invalid, 1801 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1798 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22.0s IncrementalHoareTripleChecker+Time [2022-11-22 02:15:17,634 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1673 Valid, 5403 Invalid, 1801 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1798 Invalid, 3 Unknown, 0 Unchecked, 22.0s Time] [2022-11-22 02:15:17,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5274 states. [2022-11-22 02:15:18,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5274 to 5272. [2022-11-22 02:15:18,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5272 states, 3140 states have (on average 1.2824840764331211) internal successors, (4027), 3299 states have internal predecessors, (4027), 1625 states have call successors, (1625), 479 states have call predecessors, (1625), 479 states have return successors, (1652), 1585 states have call predecessors, (1652), 1623 states have call successors, (1652) [2022-11-22 02:15:18,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5272 states to 5272 states and 7304 transitions. [2022-11-22 02:15:18,122 INFO L78 Accepts]: Start accepts. Automaton has 5272 states and 7304 transitions. Word has length 88 [2022-11-22 02:15:18,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:15:18,122 INFO L495 AbstractCegarLoop]: Abstraction has 5272 states and 7304 transitions. [2022-11-22 02:15:18,123 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 3 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-22 02:15:18,123 INFO L276 IsEmpty]: Start isEmpty. Operand 5272 states and 7304 transitions. [2022-11-22 02:15:18,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-11-22 02:15:18,124 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:15:18,124 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 02:15:18,124 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-22 02:15:18,125 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_linux_kernel_locking_rwlock_check_final_stateErr1ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-11-22 02:15:18,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:15:18,125 INFO L85 PathProgramCache]: Analyzing trace with hash 1764774953, now seen corresponding path program 1 times [2022-11-22 02:15:18,125 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:15:18,126 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [303106111] [2022-11-22 02:15:18,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:15:18,126 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:15:18,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:15:18,444 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 02:15:18,444 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:15:18,444 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [303106111] [2022-11-22 02:15:18,444 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [303106111] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:15:18,444 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:15:18,444 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 02:15:18,445 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2051962851] [2022-11-22 02:15:18,445 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:15:18,445 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 02:15:18,445 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:15:18,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 02:15:18,446 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 02:15:18,446 INFO L87 Difference]: Start difference. First operand 5272 states and 7304 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 02:15:21,342 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:15:24,957 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:15:28,047 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:15:29,531 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.48s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:15:31,543 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:15:33,683 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.56s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:15:33,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:15:33,937 INFO L93 Difference]: Finished difference Result 5519 states and 7588 transitions. [2022-11-22 02:15:33,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-22 02:15:33,938 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 02:15:33,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:15:33,957 INFO L225 Difference]: With dead ends: 5519 [2022-11-22 02:15:33,958 INFO L226 Difference]: Without dead ends: 5517 [2022-11-22 02:15:33,960 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 02:15:33,961 INFO L413 NwaCegarLoop]: 1973 mSDtfsCounter, 1449 mSDsluCounter, 3379 mSDsCounter, 0 mSdLazyCounter, 873 mSolverCounterSat, 1 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1452 SdHoareTripleChecker+Valid, 5352 SdHoareTripleChecker+Invalid, 877 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 873 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.0s IncrementalHoareTripleChecker+Time [2022-11-22 02:15:33,961 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1452 Valid, 5352 Invalid, 877 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 873 Invalid, 3 Unknown, 0 Unchecked, 15.0s Time] [2022-11-22 02:15:33,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5517 states. [2022-11-22 02:15:34,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5517 to 5286. [2022-11-22 02:15:34,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5286 states, 3148 states have (on average 1.281766200762389) internal successors, (4035), 3307 states have internal predecessors, (4035), 1629 states have call successors, (1629), 481 states have call predecessors, (1629), 481 states have return successors, (1656), 1589 states have call predecessors, (1656), 1627 states have call successors, (1656) [2022-11-22 02:15:34,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5286 states to 5286 states and 7320 transitions. [2022-11-22 02:15:34,298 INFO L78 Accepts]: Start accepts. Automaton has 5286 states and 7320 transitions. Word has length 75 [2022-11-22 02:15:34,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:15:34,299 INFO L495 AbstractCegarLoop]: Abstraction has 5286 states and 7320 transitions. [2022-11-22 02:15:34,299 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 02:15:34,300 INFO L276 IsEmpty]: Start isEmpty. Operand 5286 states and 7320 transitions. [2022-11-22 02:15:34,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-11-22 02:15:34,301 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:15:34,301 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:15:34,301 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-22 02:15:34,302 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_check_alloc_flagsErr1ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-11-22 02:15:34,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:15:34,302 INFO L85 PathProgramCache]: Analyzing trace with hash 1972963762, now seen corresponding path program 1 times [2022-11-22 02:15:34,302 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:15:34,303 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1754428642] [2022-11-22 02:15:34,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:15:34,303 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:15:34,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:15:34,633 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2022-11-22 02:15:34,633 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:15:34,634 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1754428642] [2022-11-22 02:15:34,634 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1754428642] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:15:34,634 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:15:34,634 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 02:15:34,634 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [714270854] [2022-11-22 02:15:34,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:15:34,635 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 02:15:34,635 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:15:34,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 02:15:34,636 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:15:34,636 INFO L87 Difference]: Start difference. First operand 5286 states and 7320 transitions. Second operand has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-22 02:15:37,126 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:15:40,396 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:15:43,609 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:15:44,979 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:15:46,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:15:46,501 INFO L93 Difference]: Finished difference Result 10776 states and 14893 transitions. [2022-11-22 02:15:46,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 02:15:46,502 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 91 [2022-11-22 02:15:46,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:15:46,525 INFO L225 Difference]: With dead ends: 10776 [2022-11-22 02:15:46,525 INFO L226 Difference]: Without dead ends: 5511 [2022-11-22 02:15:46,544 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 02:15:46,545 INFO L413 NwaCegarLoop]: 1974 mSDtfsCounter, 1437 mSDsluCounter, 1406 mSDsCounter, 0 mSdLazyCounter, 562 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1438 SdHoareTripleChecker+Valid, 3380 SdHoareTripleChecker+Invalid, 564 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 562 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.3s IncrementalHoareTripleChecker+Time [2022-11-22 02:15:46,545 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1438 Valid, 3380 Invalid, 564 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 562 Invalid, 2 Unknown, 0 Unchecked, 11.3s Time] [2022-11-22 02:15:46,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5511 states. [2022-11-22 02:15:46,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5511 to 5282. [2022-11-22 02:15:46,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5282 states, 3144 states have (on average 1.280852417302799) internal successors, (4027), 3303 states have internal predecessors, (4027), 1629 states have call successors, (1629), 481 states have call predecessors, (1629), 481 states have return successors, (1656), 1589 states have call predecessors, (1656), 1627 states have call successors, (1656) [2022-11-22 02:15:46,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5282 states to 5282 states and 7312 transitions. [2022-11-22 02:15:46,966 INFO L78 Accepts]: Start accepts. Automaton has 5282 states and 7312 transitions. Word has length 91 [2022-11-22 02:15:46,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:15:46,967 INFO L495 AbstractCegarLoop]: Abstraction has 5282 states and 7312 transitions. [2022-11-22 02:15:46,967 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-22 02:15:46,967 INFO L276 IsEmpty]: Start isEmpty. Operand 5282 states and 7312 transitions. [2022-11-22 02:15:46,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-11-22 02:15:46,969 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:15:46,969 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 02:15:46,970 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-22 02:15:46,970 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_linux_kernel_module_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-11-22 02:15:46,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:15:46,970 INFO L85 PathProgramCache]: Analyzing trace with hash 1849249697, now seen corresponding path program 1 times [2022-11-22 02:15:46,971 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:15:46,971 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1630188219] [2022-11-22 02:15:46,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:15:46,971 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:15:47,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:15:47,342 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 02:15:47,343 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:15:47,343 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1630188219] [2022-11-22 02:15:47,343 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1630188219] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:15:47,343 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:15:47,343 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 02:15:47,343 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1971238119] [2022-11-22 02:15:47,343 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:15:47,344 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 02:15:47,344 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:15:47,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 02:15:47,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 02:15:47,344 INFO L87 Difference]: Start difference. First operand 5282 states and 7312 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 02:15:50,225 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:15:54,031 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:15:57,398 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:15:59,409 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:16:03,008 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:16:03,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:16:03,303 INFO L93 Difference]: Finished difference Result 5511 states and 7577 transitions. [2022-11-22 02:16:03,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-22 02:16:03,305 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 02:16:03,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:16:03,327 INFO L225 Difference]: With dead ends: 5511 [2022-11-22 02:16:03,327 INFO L226 Difference]: Without dead ends: 5509 [2022-11-22 02:16:03,329 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-22 02:16:03,330 INFO L413 NwaCegarLoop]: 1973 mSDtfsCounter, 1443 mSDsluCounter, 3379 mSDsCounter, 0 mSdLazyCounter, 873 mSolverCounterSat, 1 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1446 SdHoareTripleChecker+Valid, 5352 SdHoareTripleChecker+Invalid, 878 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 873 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.4s IncrementalHoareTripleChecker+Time [2022-11-22 02:16:03,330 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1446 Valid, 5352 Invalid, 878 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 873 Invalid, 4 Unknown, 0 Unchecked, 15.4s Time] [2022-11-22 02:16:03,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5509 states. [2022-11-22 02:16:03,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5509 to 5288. [2022-11-22 02:16:03,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5288 states, 3147 states have (on average 1.2805846838258659) internal successors, (4030), 3306 states have internal predecessors, (4030), 1631 states have call successors, (1631), 482 states have call predecessors, (1631), 482 states have return successors, (1658), 1591 states have call predecessors, (1658), 1629 states have call successors, (1658) [2022-11-22 02:16:03,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5288 states to 5288 states and 7319 transitions. [2022-11-22 02:16:03,834 INFO L78 Accepts]: Start accepts. Automaton has 5288 states and 7319 transitions. Word has length 80 [2022-11-22 02:16:03,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:16:03,836 INFO L495 AbstractCegarLoop]: Abstraction has 5288 states and 7319 transitions. [2022-11-22 02:16:03,836 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 02:16:03,837 INFO L276 IsEmpty]: Start isEmpty. Operand 5288 states and 7319 transitions. [2022-11-22 02:16:03,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-11-22 02:16:03,838 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:16:03,838 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 02:16:03,838 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-22 02:16:03,839 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_linux_kernel_rcu_update_lock_bh_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-11-22 02:16:03,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:16:03,839 INFO L85 PathProgramCache]: Analyzing trace with hash -1116925288, now seen corresponding path program 1 times [2022-11-22 02:16:03,839 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:16:03,840 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1541439196] [2022-11-22 02:16:03,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:16:03,840 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:16:03,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:16:04,195 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 02:16:04,195 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:16:04,196 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1541439196] [2022-11-22 02:16:04,196 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1541439196] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:16:04,196 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:16:04,196 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 02:16:04,196 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1070806644] [2022-11-22 02:16:04,196 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:16:04,197 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 02:16:04,197 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:16:04,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 02:16:04,197 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 02:16:04,197 INFO L87 Difference]: Start difference. First operand 5288 states and 7319 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 02:16:07,075 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:16:10,792 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:16:14,723 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:16:15,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:16:15,639 INFO L93 Difference]: Finished difference Result 5393 states and 7425 transitions. [2022-11-22 02:16:15,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-22 02:16:15,640 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 02:16:15,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:16:15,660 INFO L225 Difference]: With dead ends: 5393 [2022-11-22 02:16:15,660 INFO L226 Difference]: Without dead ends: 5391 [2022-11-22 02:16:15,663 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 02:16:15,663 INFO L413 NwaCegarLoop]: 1967 mSDtfsCounter, 1432 mSDsluCounter, 3373 mSDsCounter, 0 mSdLazyCounter, 868 mSolverCounterSat, 1 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1435 SdHoareTripleChecker+Valid, 5340 SdHoareTripleChecker+Invalid, 872 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 868 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.9s IncrementalHoareTripleChecker+Time [2022-11-22 02:16:15,664 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1435 Valid, 5340 Invalid, 872 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 868 Invalid, 3 Unknown, 0 Unchecked, 10.9s Time] [2022-11-22 02:16:15,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5391 states. [2022-11-22 02:16:16,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5391 to 5294. [2022-11-22 02:16:16,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5294 states, 3150 states have (on average 1.2803174603174603) internal successors, (4033), 3309 states have internal predecessors, (4033), 1633 states have call successors, (1633), 483 states have call predecessors, (1633), 483 states have return successors, (1660), 1593 states have call predecessors, (1660), 1631 states have call successors, (1660) [2022-11-22 02:16:16,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5294 states to 5294 states and 7326 transitions. [2022-11-22 02:16:16,194 INFO L78 Accepts]: Start accepts. Automaton has 5294 states and 7326 transitions. Word has length 85 [2022-11-22 02:16:16,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:16:16,197 INFO L495 AbstractCegarLoop]: Abstraction has 5294 states and 7326 transitions. [2022-11-22 02:16:16,198 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 02:16:16,198 INFO L276 IsEmpty]: Start isEmpty. Operand 5294 states and 7326 transitions. [2022-11-22 02:16:16,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-11-22 02:16:16,203 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:16:16,203 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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 02:16:16,203 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-22 02:16:16,204 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-11-22 02:16:16,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:16:16,204 INFO L85 PathProgramCache]: Analyzing trace with hash -1760395765, now seen corresponding path program 1 times [2022-11-22 02:16:16,204 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:16:16,205 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1894175475] [2022-11-22 02:16:16,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:16:16,206 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:16:16,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:16:16,962 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 225 trivial. 0 not checked. [2022-11-22 02:16:16,963 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:16:16,963 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1894175475] [2022-11-22 02:16:16,963 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1894175475] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:16:16,963 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:16:16,963 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-22 02:16:16,963 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [757272737] [2022-11-22 02:16:16,963 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:16:16,964 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 02:16:16,964 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:16:16,964 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 02:16:16,964 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-22 02:16:16,965 INFO L87 Difference]: Start difference. First operand 5294 states and 7326 transitions. Second operand has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-11-22 02:16:21,125 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:16:25,710 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:16:28,218 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:16:29,844 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.63s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:16:31,857 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:16:32,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:16:32,806 INFO L93 Difference]: Finished difference Result 5865 states and 7918 transitions. [2022-11-22 02:16:32,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-22 02:16:32,807 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 117 [2022-11-22 02:16:32,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:16:32,829 INFO L225 Difference]: With dead ends: 5865 [2022-11-22 02:16:32,829 INFO L226 Difference]: Without dead ends: 5863 [2022-11-22 02:16:32,832 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-22 02:16:32,833 INFO L413 NwaCegarLoop]: 1514 mSDtfsCounter, 1604 mSDsluCounter, 3362 mSDsCounter, 0 mSdLazyCounter, 840 mSolverCounterSat, 3 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1608 SdHoareTripleChecker+Valid, 4876 SdHoareTripleChecker+Invalid, 846 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 840 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.2s IncrementalHoareTripleChecker+Time [2022-11-22 02:16:32,834 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1608 Valid, 4876 Invalid, 846 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 840 Invalid, 3 Unknown, 0 Unchecked, 15.2s Time] [2022-11-22 02:16:32,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5863 states. [2022-11-22 02:16:33,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5863 to 5841. [2022-11-22 02:16:33,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5841 states, 3446 states have (on average 1.2675565873476495) internal successors, (4368), 3608 states have internal predecessors, (4368), 1751 states have call successors, (1751), 616 states have call predecessors, (1751), 616 states have return successors, (1778), 1708 states have call predecessors, (1778), 1749 states have call successors, (1778) [2022-11-22 02:16:33,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5841 states to 5841 states and 7897 transitions. [2022-11-22 02:16:33,304 INFO L78 Accepts]: Start accepts. Automaton has 5841 states and 7897 transitions. Word has length 117 [2022-11-22 02:16:33,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:16:33,304 INFO L495 AbstractCegarLoop]: Abstraction has 5841 states and 7897 transitions. [2022-11-22 02:16:33,304 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-11-22 02:16:33,304 INFO L276 IsEmpty]: Start isEmpty. Operand 5841 states and 7897 transitions. [2022-11-22 02:16:33,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-11-22 02:16:33,305 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:16:33,305 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 02:16:33,305 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-22 02:16:33,305 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_linux_kernel_rcu_update_lock_sched_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-11-22 02:16:33,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:16:33,306 INFO L85 PathProgramCache]: Analyzing trace with hash -1880624519, now seen corresponding path program 1 times [2022-11-22 02:16:33,306 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:16:33,306 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1845445099] [2022-11-22 02:16:33,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:16:33,307 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:16:33,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:16:33,621 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 02:16:33,621 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:16:33,621 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1845445099] [2022-11-22 02:16:33,621 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1845445099] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:16:33,621 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:16:33,621 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 02:16:33,622 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [584485101] [2022-11-22 02:16:33,622 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:16:33,622 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 02:16:33,622 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:16:33,622 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 02:16:33,623 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 02:16:33,623 INFO L87 Difference]: Start difference. First operand 5841 states and 7897 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 02:16:36,514 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:16:40,485 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:16:43,991 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:16:44,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:16:44,872 INFO L93 Difference]: Finished difference Result 5938 states and 7994 transitions. [2022-11-22 02:16:44,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-22 02:16:44,873 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 02:16:44,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:16:44,896 INFO L225 Difference]: With dead ends: 5938 [2022-11-22 02:16:44,897 INFO L226 Difference]: Without dead ends: 5936 [2022-11-22 02:16:44,900 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-22 02:16:44,901 INFO L413 NwaCegarLoop]: 1965 mSDtfsCounter, 1429 mSDsluCounter, 3371 mSDsCounter, 0 mSdLazyCounter, 868 mSolverCounterSat, 1 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1432 SdHoareTripleChecker+Valid, 5336 SdHoareTripleChecker+Invalid, 872 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 868 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.6s IncrementalHoareTripleChecker+Time [2022-11-22 02:16:44,901 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1432 Valid, 5336 Invalid, 872 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 868 Invalid, 3 Unknown, 0 Unchecked, 10.6s Time] [2022-11-22 02:16:44,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5936 states. [2022-11-22 02:16:45,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5936 to 5847. [2022-11-22 02:16:45,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5847 states, 3449 states have (on average 1.2673238619889824) internal successors, (4371), 3611 states have internal predecessors, (4371), 1753 states have call successors, (1753), 617 states have call predecessors, (1753), 617 states have return successors, (1780), 1710 states have call predecessors, (1780), 1751 states have call successors, (1780) [2022-11-22 02:16:45,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5847 states to 5847 states and 7904 transitions. [2022-11-22 02:16:45,545 INFO L78 Accepts]: Start accepts. Automaton has 5847 states and 7904 transitions. Word has length 90 [2022-11-22 02:16:45,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:16:45,545 INFO L495 AbstractCegarLoop]: Abstraction has 5847 states and 7904 transitions. [2022-11-22 02:16:45,545 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 02:16:45,546 INFO L276 IsEmpty]: Start isEmpty. Operand 5847 states and 7904 transitions. [2022-11-22 02:16:45,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-11-22 02:16:45,547 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:16:45,548 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 02:16:45,548 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-22 02:16:45,550 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-11-22 02:16:45,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:16:45,550 INFO L85 PathProgramCache]: Analyzing trace with hash -1429890285, now seen corresponding path program 1 times [2022-11-22 02:16:45,550 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:16:45,551 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [963245537] [2022-11-22 02:16:45,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:16:45,551 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:16:45,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:16:45,947 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 02:16:45,947 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:16:45,947 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [963245537] [2022-11-22 02:16:45,947 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [963245537] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:16:45,947 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:16:45,947 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 02:16:45,948 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1425652163] [2022-11-22 02:16:45,948 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:16:45,948 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 02:16:45,948 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:16:45,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 02:16:45,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 02:16:45,949 INFO L87 Difference]: Start difference. First operand 5847 states and 7904 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 02:16:48,516 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.70s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:16:50,532 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:16:53,640 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:16:56,983 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:16:57,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:16:57,340 INFO L93 Difference]: Finished difference Result 5850 states and 7907 transitions. [2022-11-22 02:16:57,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 02:16:57,340 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 02:16:57,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:16:57,357 INFO L225 Difference]: With dead ends: 5850 [2022-11-22 02:16:57,357 INFO L226 Difference]: Without dead ends: 5848 [2022-11-22 02:16:57,360 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-22 02:16:57,361 INFO L413 NwaCegarLoop]: 1484 mSDtfsCounter, 1653 mSDsluCounter, 1677 mSDsCounter, 0 mSdLazyCounter, 552 mSolverCounterSat, 0 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1656 SdHoareTripleChecker+Valid, 3161 SdHoareTripleChecker+Invalid, 555 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 552 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.9s IncrementalHoareTripleChecker+Time [2022-11-22 02:16:57,361 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1656 Valid, 3161 Invalid, 555 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 552 Invalid, 3 Unknown, 0 Unchecked, 10.9s Time] [2022-11-22 02:16:57,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5848 states. [2022-11-22 02:16:57,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5848 to 5845. [2022-11-22 02:16:57,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5845 states, 3448 states have (on average 1.2671113689095128) internal successors, (4369), 3609 states have internal predecessors, (4369), 1753 states have call successors, (1753), 617 states have call predecessors, (1753), 617 states have return successors, (1780), 1710 states have call predecessors, (1780), 1751 states have call successors, (1780) [2022-11-22 02:16:57,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5845 states to 5845 states and 7902 transitions. [2022-11-22 02:16:57,943 INFO L78 Accepts]: Start accepts. Automaton has 5845 states and 7902 transitions. Word has length 95 [2022-11-22 02:16:57,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:16:57,944 INFO L495 AbstractCegarLoop]: Abstraction has 5845 states and 7902 transitions. [2022-11-22 02:16:57,944 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 02:16:57,944 INFO L276 IsEmpty]: Start isEmpty. Operand 5845 states and 7902 transitions. [2022-11-22 02:16:57,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2022-11-22 02:16:57,947 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:16:57,947 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:16:57,947 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-22 02:16:57,947 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-11-22 02:16:57,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:16:57,948 INFO L85 PathProgramCache]: Analyzing trace with hash 2043067935, now seen corresponding path program 1 times [2022-11-22 02:16:57,948 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:16:57,948 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1713816307] [2022-11-22 02:16:57,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:16:57,949 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:16:58,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:16:58,628 INFO L134 CoverageAnalysis]: Checked inductivity of 227 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 225 trivial. 0 not checked. [2022-11-22 02:16:58,629 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:16:58,629 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1713816307] [2022-11-22 02:16:58,629 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1713816307] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:16:58,629 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:16:58,629 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-22 02:16:58,629 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1988049391] [2022-11-22 02:16:58,629 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:16:58,630 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 02:16:58,630 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:16:58,630 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 02:16:58,630 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-22 02:16:58,631 INFO L87 Difference]: Start difference. First operand 5845 states and 7902 transitions. Second operand has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-22 02:17:02,918 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:17:04,581 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.66s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:17:08,231 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:17:11,756 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:17:12,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:17:12,183 INFO L93 Difference]: Finished difference Result 6330 states and 8421 transitions. [2022-11-22 02:17:12,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-22 02:17:12,184 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 128 [2022-11-22 02:17:12,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:17:12,198 INFO L225 Difference]: With dead ends: 6330 [2022-11-22 02:17:12,199 INFO L226 Difference]: Without dead ends: 6328 [2022-11-22 02:17:12,200 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-22 02:17:12,201 INFO L413 NwaCegarLoop]: 1512 mSDtfsCounter, 1612 mSDsluCounter, 3337 mSDsCounter, 0 mSdLazyCounter, 835 mSolverCounterSat, 2 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1616 SdHoareTripleChecker+Valid, 4849 SdHoareTripleChecker+Invalid, 840 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 835 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.9s IncrementalHoareTripleChecker+Time [2022-11-22 02:17:12,201 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1616 Valid, 4849 Invalid, 840 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 835 Invalid, 3 Unknown, 0 Unchecked, 12.9s Time] [2022-11-22 02:17:12,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6328 states. [2022-11-22 02:17:12,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6328 to 6243. [2022-11-22 02:17:12,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6243 states, 3674 states have (on average 1.2591181273816003) internal successors, (4626), 3837 states have internal predecessors, (4626), 1835 states have call successors, (1835), 707 states have call predecessors, (1835), 707 states have return successors, (1862), 1790 states have call predecessors, (1862), 1833 states have call successors, (1862) [2022-11-22 02:17:12,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6243 states to 6243 states and 8323 transitions. [2022-11-22 02:17:12,783 INFO L78 Accepts]: Start accepts. Automaton has 6243 states and 8323 transitions. Word has length 128 [2022-11-22 02:17:12,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:17:12,784 INFO L495 AbstractCegarLoop]: Abstraction has 6243 states and 8323 transitions. [2022-11-22 02:17:12,784 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-22 02:17:12,784 INFO L276 IsEmpty]: Start isEmpty. Operand 6243 states and 8323 transitions. [2022-11-22 02:17:12,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2022-11-22 02:17:12,787 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:17:12,787 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2022-11-22 02:17:12,788 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-22 02:17:12,788 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-11-22 02:17:12,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:17:12,789 INFO L85 PathProgramCache]: Analyzing trace with hash 144208892, now seen corresponding path program 1 times [2022-11-22 02:17:12,789 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:17:12,789 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [562953453] [2022-11-22 02:17:12,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:17:12,789 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:17:12,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:17:13,396 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 225 trivial. 0 not checked. [2022-11-22 02:17:13,396 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:17:13,396 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [562953453] [2022-11-22 02:17:13,396 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [562953453] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:17:13,396 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:17:13,397 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-22 02:17:13,397 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1377862355] [2022-11-22 02:17:13,397 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:17:13,397 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 02:17:13,397 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:17:13,398 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 02:17:13,398 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-22 02:17:13,398 INFO L87 Difference]: Start difference. First operand 6243 states and 8323 transitions. Second operand has 5 states, 5 states have (on average 7.8) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (20), 3 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 1 states have call successors, (18) [2022-11-22 02:17:16,895 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:17:21,189 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:17:22,590 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:17:25,543 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:17:25,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:17:25,921 INFO L93 Difference]: Finished difference Result 6257 states and 8330 transitions. [2022-11-22 02:17:25,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-22 02:17:25,922 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (20), 3 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 1 states have call successors, (18) Word has length 129 [2022-11-22 02:17:25,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:17:25,944 INFO L225 Difference]: With dead ends: 6257 [2022-11-22 02:17:25,944 INFO L226 Difference]: Without dead ends: 6255 [2022-11-22 02:17:25,948 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-22 02:17:25,949 INFO L413 NwaCegarLoop]: 1544 mSDtfsCounter, 194 mSDsluCounter, 4462 mSDsCounter, 0 mSdLazyCounter, 1091 mSolverCounterSat, 0 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 195 SdHoareTripleChecker+Valid, 6006 SdHoareTripleChecker+Invalid, 1094 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1091 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.9s IncrementalHoareTripleChecker+Time [2022-11-22 02:17:25,949 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [195 Valid, 6006 Invalid, 1094 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1091 Invalid, 3 Unknown, 0 Unchecked, 11.9s Time] [2022-11-22 02:17:25,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6255 states. [2022-11-22 02:17:26,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6255 to 6243. [2022-11-22 02:17:26,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6243 states, 3674 states have (on average 1.2577572128470331) internal successors, (4621), 3837 states have internal predecessors, (4621), 1835 states have call successors, (1835), 707 states have call predecessors, (1835), 707 states have return successors, (1862), 1790 states have call predecessors, (1862), 1833 states have call successors, (1862) [2022-11-22 02:17:26,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6243 states to 6243 states and 8318 transitions. [2022-11-22 02:17:26,556 INFO L78 Accepts]: Start accepts. Automaton has 6243 states and 8318 transitions. Word has length 129 [2022-11-22 02:17:26,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:17:26,558 INFO L495 AbstractCegarLoop]: Abstraction has 6243 states and 8318 transitions. [2022-11-22 02:17:26,560 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (20), 3 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 1 states have call successors, (18) [2022-11-22 02:17:26,560 INFO L276 IsEmpty]: Start isEmpty. Operand 6243 states and 8318 transitions. [2022-11-22 02:17:26,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2022-11-22 02:17:26,562 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:17:26,562 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 02:17:26,562 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-22 02:17:26,562 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_linux_kernel_rcu_srcu_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-11-22 02:17:26,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:17:26,563 INFO L85 PathProgramCache]: Analyzing trace with hash 1460474479, now seen corresponding path program 1 times [2022-11-22 02:17:26,563 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:17:26,563 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [237196936] [2022-11-22 02:17:26,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:17:26,563 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:17:26,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:17:26,877 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 02:17:26,877 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:17:26,877 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [237196936] [2022-11-22 02:17:26,877 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [237196936] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:17:26,877 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:17:26,877 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 02:17:26,878 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1020013898] [2022-11-22 02:17:26,878 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:17:26,878 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 02:17:26,878 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:17:26,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 02:17:26,879 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 02:17:26,879 INFO L87 Difference]: Start difference. First operand 6243 states and 8318 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 02:17:29,635 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:17:33,328 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:17:36,448 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:17:40,470 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:17:42,479 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:17:42,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:17:42,760 INFO L93 Difference]: Finished difference Result 6446 states and 8554 transitions. [2022-11-22 02:17:42,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-22 02:17:42,760 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 02:17:42,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:17:42,780 INFO L225 Difference]: With dead ends: 6446 [2022-11-22 02:17:42,780 INFO L226 Difference]: Without dead ends: 6444 [2022-11-22 02:17:42,784 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 02:17:42,785 INFO L413 NwaCegarLoop]: 1966 mSDtfsCounter, 1431 mSDsluCounter, 3370 mSDsCounter, 0 mSdLazyCounter, 870 mSolverCounterSat, 1 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1434 SdHoareTripleChecker+Valid, 5336 SdHoareTripleChecker+Invalid, 874 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 870 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.2s IncrementalHoareTripleChecker+Time [2022-11-22 02:17:42,785 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1434 Valid, 5336 Invalid, 874 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 870 Invalid, 3 Unknown, 0 Unchecked, 15.2s Time] [2022-11-22 02:17:42,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6444 states. [2022-11-22 02:17:43,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6444 to 6255. [2022-11-22 02:17:43,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6255 states, 3680 states have (on average 1.2573369565217392) internal successors, (4627), 3843 states have internal predecessors, (4627), 1839 states have call successors, (1839), 709 states have call predecessors, (1839), 709 states have return successors, (1866), 1794 states have call predecessors, (1866), 1837 states have call successors, (1866) [2022-11-22 02:17:43,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6255 states to 6255 states and 8332 transitions. [2022-11-22 02:17:43,325 INFO L78 Accepts]: Start accepts. Automaton has 6255 states and 8332 transitions. Word has length 100 [2022-11-22 02:17:43,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:17:43,325 INFO L495 AbstractCegarLoop]: Abstraction has 6255 states and 8332 transitions. [2022-11-22 02:17:43,325 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 02:17:43,325 INFO L276 IsEmpty]: Start isEmpty. Operand 6255 states and 8332 transitions. [2022-11-22 02:17:43,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2022-11-22 02:17:43,328 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:17:43,328 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 4, 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] [2022-11-22 02:17:43,328 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-11-22 02:17:43,329 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-11-22 02:17:43,330 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:17:43,330 INFO L85 PathProgramCache]: Analyzing trace with hash -935248250, now seen corresponding path program 1 times [2022-11-22 02:17:43,330 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:17:43,330 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1180491958] [2022-11-22 02:17:43,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:17:43,331 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:17:43,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:17:43,988 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 174 trivial. 0 not checked. [2022-11-22 02:17:43,988 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:17:43,988 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1180491958] [2022-11-22 02:17:43,988 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1180491958] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:17:43,989 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:17:43,989 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-22 02:17:43,989 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1996693930] [2022-11-22 02:17:43,989 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:17:43,989 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 02:17:43,989 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:17:43,990 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 02:17:43,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-22 02:17:43,990 INFO L87 Difference]: Start difference. First operand 6255 states and 8332 transitions. Second operand has 5 states, 5 states have (on average 8.4) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-22 02:17:46,978 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:17:50,284 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:17:53,517 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:17:56,714 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.81s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:17:58,278 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.56s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:17:59,951 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.67s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:18:00,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:18:00,334 INFO L93 Difference]: Finished difference Result 7278 states and 9543 transitions. [2022-11-22 02:18:00,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-22 02:18:00,335 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 123 [2022-11-22 02:18:00,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:18:00,350 INFO L225 Difference]: With dead ends: 7278 [2022-11-22 02:18:00,351 INFO L226 Difference]: Without dead ends: 7276 [2022-11-22 02:18:00,353 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-22 02:18:00,353 INFO L413 NwaCegarLoop]: 1628 mSDtfsCounter, 1092 mSDsluCounter, 4118 mSDsCounter, 0 mSdLazyCounter, 979 mSolverCounterSat, 2 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1094 SdHoareTripleChecker+Valid, 5746 SdHoareTripleChecker+Invalid, 983 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 979 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.6s IncrementalHoareTripleChecker+Time [2022-11-22 02:18:00,353 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1094 Valid, 5746 Invalid, 983 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 979 Invalid, 2 Unknown, 0 Unchecked, 15.6s Time] [2022-11-22 02:18:00,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7276 states. [2022-11-22 02:18:00,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7276 to 7154. [2022-11-22 02:18:00,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7154 states, 4240 states have (on average 1.254009433962264) internal successors, (5317), 4415 states have internal predecessors, (5317), 2030 states have call successors, (2030), 863 states have call predecessors, (2030), 857 states have return successors, (2061), 1971 states have call predecessors, (2061), 2028 states have call successors, (2061) [2022-11-22 02:18:00,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7154 states to 7154 states and 9408 transitions. [2022-11-22 02:18:00,927 INFO L78 Accepts]: Start accepts. Automaton has 7154 states and 9408 transitions. Word has length 123 [2022-11-22 02:18:00,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:18:00,927 INFO L495 AbstractCegarLoop]: Abstraction has 7154 states and 9408 transitions. [2022-11-22 02:18:00,927 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-22 02:18:00,927 INFO L276 IsEmpty]: Start isEmpty. Operand 7154 states and 9408 transitions. [2022-11-22 02:18:00,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2022-11-22 02:18:00,929 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:18:00,929 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 02:18:00,929 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-11-22 02:18:00,929 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ldv_linux_lib_idr_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-11-22 02:18:00,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:18:00,929 INFO L85 PathProgramCache]: Analyzing trace with hash -232069892, now seen corresponding path program 1 times [2022-11-22 02:18:00,930 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:18:00,930 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [77830753] [2022-11-22 02:18:00,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:18:00,930 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:18:00,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:18:01,267 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 02:18:01,267 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:18:01,267 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [77830753] [2022-11-22 02:18:01,268 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [77830753] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:18:01,268 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:18:01,268 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 02:18:01,268 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [344896062] [2022-11-22 02:18:01,268 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:18:01,268 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 02:18:01,269 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:18:01,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 02:18:01,269 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 02:18:01,269 INFO L87 Difference]: Start difference. First operand 7154 states and 9408 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 02:18:03,986 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.78s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:18:06,011 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:18:10,349 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:18:13,002 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:18:13,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:18:13,403 INFO L93 Difference]: Finished difference Result 7157 states and 9411 transitions. [2022-11-22 02:18:13,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 02:18:13,403 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 02:18:13,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:18:13,424 INFO L225 Difference]: With dead ends: 7157 [2022-11-22 02:18:13,424 INFO L226 Difference]: Without dead ends: 7155 [2022-11-22 02:18:13,428 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-22 02:18:13,428 INFO L413 NwaCegarLoop]: 1482 mSDtfsCounter, 1649 mSDsluCounter, 1675 mSDsCounter, 0 mSdLazyCounter, 552 mSolverCounterSat, 0 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1652 SdHoareTripleChecker+Valid, 3157 SdHoareTripleChecker+Invalid, 555 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 552 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.3s IncrementalHoareTripleChecker+Time [2022-11-22 02:18:13,429 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1652 Valid, 3157 Invalid, 555 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 552 Invalid, 3 Unknown, 0 Unchecked, 11.3s Time] [2022-11-22 02:18:13,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7155 states. [2022-11-22 02:18:14,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7155 to 7152. [2022-11-22 02:18:14,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7152 states, 4239 states have (on average 1.2538334512856806) internal successors, (5315), 4413 states have internal predecessors, (5315), 2030 states have call successors, (2030), 863 states have call predecessors, (2030), 857 states have return successors, (2061), 1971 states have call predecessors, (2061), 2028 states have call successors, (2061) [2022-11-22 02:18:14,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7152 states to 7152 states and 9406 transitions. [2022-11-22 02:18:14,138 INFO L78 Accepts]: Start accepts. Automaton has 7152 states and 9406 transitions. Word has length 105 [2022-11-22 02:18:14,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:18:14,139 INFO L495 AbstractCegarLoop]: Abstraction has 7152 states and 9406 transitions. [2022-11-22 02:18:14,139 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 02:18:14,139 INFO L276 IsEmpty]: Start isEmpty. Operand 7152 states and 9406 transitions. [2022-11-22 02:18:14,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2022-11-22 02:18:14,141 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:18:14,141 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:18:14,141 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-11-22 02:18:14,142 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-11-22 02:18:14,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:18:14,142 INFO L85 PathProgramCache]: Analyzing trace with hash -908782829, now seen corresponding path program 1 times [2022-11-22 02:18:14,142 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:18:14,142 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [997041565] [2022-11-22 02:18:14,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:18:14,143 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:18:14,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:18:14,705 INFO L134 CoverageAnalysis]: Checked inductivity of 229 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 229 trivial. 0 not checked. [2022-11-22 02:18:14,705 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:18:14,705 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [997041565] [2022-11-22 02:18:14,705 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [997041565] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:18:14,705 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:18:14,705 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-22 02:18:14,705 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [387702392] [2022-11-22 02:18:14,706 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:18:14,706 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 02:18:14,706 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:18:14,706 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 02:18:14,706 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-22 02:18:14,707 INFO L87 Difference]: Start difference. First operand 7152 states and 9406 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, (22), 3 states have call predecessors, (22), 2 states have return successors, (20), 2 states have call predecessors, (20), 1 states have call successors, (20) [2022-11-22 02:18:19,670 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:18:21,676 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:18:26,368 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:18:29,223 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:18:29,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:18:29,722 INFO L93 Difference]: Finished difference Result 7164 states and 9412 transitions. [2022-11-22 02:18:29,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-22 02:18:29,723 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, (22), 3 states have call predecessors, (22), 2 states have return successors, (20), 2 states have call predecessors, (20), 1 states have call successors, (20) Word has length 138 [2022-11-22 02:18:29,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:18:29,743 INFO L225 Difference]: With dead ends: 7164 [2022-11-22 02:18:29,743 INFO L226 Difference]: Without dead ends: 7162 [2022-11-22 02:18:29,746 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-22 02:18:29,747 INFO L413 NwaCegarLoop]: 1526 mSDtfsCounter, 161 mSDsluCounter, 4445 mSDsCounter, 0 mSdLazyCounter, 1074 mSolverCounterSat, 0 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 162 SdHoareTripleChecker+Valid, 5971 SdHoareTripleChecker+Invalid, 1078 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1074 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.2s IncrementalHoareTripleChecker+Time [2022-11-22 02:18:29,747 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [162 Valid, 5971 Invalid, 1078 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1074 Invalid, 4 Unknown, 0 Unchecked, 14.2s Time] [2022-11-22 02:18:29,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7162 states. [2022-11-22 02:18:30,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7162 to 7152. [2022-11-22 02:18:30,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7152 states, 4239 states have (on average 1.2510025949516395) internal successors, (5303), 4413 states have internal predecessors, (5303), 2030 states have call successors, (2030), 863 states have call predecessors, (2030), 857 states have return successors, (2061), 1971 states have call predecessors, (2061), 2028 states have call successors, (2061) [2022-11-22 02:18:30,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7152 states to 7152 states and 9394 transitions. [2022-11-22 02:18:30,643 INFO L78 Accepts]: Start accepts. Automaton has 7152 states and 9394 transitions. Word has length 138 [2022-11-22 02:18:30,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:18:30,644 INFO L495 AbstractCegarLoop]: Abstraction has 7152 states and 9394 transitions. [2022-11-22 02:18:30,644 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, (22), 3 states have call predecessors, (22), 2 states have return successors, (20), 2 states have call predecessors, (20), 1 states have call successors, (20) [2022-11-22 02:18:30,644 INFO L276 IsEmpty]: Start isEmpty. Operand 7152 states and 9394 transitions. [2022-11-22 02:18:30,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-11-22 02:18:30,648 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:18:30,648 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 02:18:30,648 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-11-22 02:18:30,649 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ldv_linux_mmc_sdio_func_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-11-22 02:18:30,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:18:30,649 INFO L85 PathProgramCache]: Analyzing trace with hash 1195950420, now seen corresponding path program 1 times [2022-11-22 02:18:30,649 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:18:30,650 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1189127010] [2022-11-22 02:18:30,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:18:30,650 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:18:30,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:18:31,273 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 02:18:31,273 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:18:31,274 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1189127010] [2022-11-22 02:18:31,274 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1189127010] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:18:31,274 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:18:31,274 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 02:18:31,274 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2103228152] [2022-11-22 02:18:31,274 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:18:31,275 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 02:18:31,275 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:18:31,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 02:18:31,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 02:18:31,275 INFO L87 Difference]: Start difference. First operand 7152 states and 9394 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 02:18:34,183 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:18:38,866 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:18:42,217 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:18:42,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:18:42,999 INFO L93 Difference]: Finished difference Result 7223 states and 9462 transitions. [2022-11-22 02:18:42,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-22 02:18:42,999 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 02:18:43,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:18:43,014 INFO L225 Difference]: With dead ends: 7223 [2022-11-22 02:18:43,014 INFO L226 Difference]: Without dead ends: 7221 [2022-11-22 02:18:43,017 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-22 02:18:43,018 INFO L413 NwaCegarLoop]: 1960 mSDtfsCounter, 1417 mSDsluCounter, 3362 mSDsCounter, 0 mSdLazyCounter, 862 mSolverCounterSat, 1 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1420 SdHoareTripleChecker+Valid, 5322 SdHoareTripleChecker+Invalid, 866 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 862 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.9s IncrementalHoareTripleChecker+Time [2022-11-22 02:18:43,018 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1420 Valid, 5322 Invalid, 866 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 862 Invalid, 3 Unknown, 0 Unchecked, 10.9s Time] [2022-11-22 02:18:43,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7221 states. [2022-11-22 02:18:43,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7221 to 7164. [2022-11-22 02:18:43,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7164 states, 4245 states have (on average 1.2506478209658423) internal successors, (5309), 4419 states have internal predecessors, (5309), 2034 states have call successors, (2034), 865 states have call predecessors, (2034), 859 states have return successors, (2065), 1975 states have call predecessors, (2065), 2032 states have call successors, (2065) [2022-11-22 02:18:43,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7164 states to 7164 states and 9408 transitions. [2022-11-22 02:18:43,731 INFO L78 Accepts]: Start accepts. Automaton has 7164 states and 9408 transitions. Word has length 110 [2022-11-22 02:18:43,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:18:43,731 INFO L495 AbstractCegarLoop]: Abstraction has 7164 states and 9408 transitions. [2022-11-22 02:18:43,732 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 02:18:43,732 INFO L276 IsEmpty]: Start isEmpty. Operand 7164 states and 9408 transitions. [2022-11-22 02:18:43,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2022-11-22 02:18:43,733 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:18:43,734 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 02:18:43,734 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-11-22 02:18:43,734 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ldv_linux_net_rtnetlink_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-11-22 02:18:43,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:18:43,734 INFO L85 PathProgramCache]: Analyzing trace with hash -747814409, now seen corresponding path program 1 times [2022-11-22 02:18:43,735 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:18:43,735 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1564914034] [2022-11-22 02:18:43,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:18:43,735 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:18:43,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:18:44,082 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 02:18:44,082 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:18:44,083 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1564914034] [2022-11-22 02:18:44,083 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1564914034] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:18:44,083 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:18:44,083 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 02:18:44,083 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1224287591] [2022-11-22 02:18:44,083 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:18:44,083 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 02:18:44,084 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:18:44,084 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 02:18:44,084 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 02:18:44,084 INFO L87 Difference]: Start difference. First operand 7164 states and 9408 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 02:18:46,611 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.61s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:18:48,628 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:18:51,400 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:18:53,458 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:18:56,150 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:18:56,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:18:56,512 INFO L93 Difference]: Finished difference Result 7167 states and 9411 transitions. [2022-11-22 02:18:56,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 02:18:56,512 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 02:18:56,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:18:56,528 INFO L225 Difference]: With dead ends: 7167 [2022-11-22 02:18:56,528 INFO L226 Difference]: Without dead ends: 7165 [2022-11-22 02:18:56,530 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 02:18:56,531 INFO L413 NwaCegarLoop]: 1480 mSDtfsCounter, 1645 mSDsluCounter, 1673 mSDsCounter, 0 mSdLazyCounter, 552 mSolverCounterSat, 0 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1648 SdHoareTripleChecker+Valid, 3153 SdHoareTripleChecker+Invalid, 555 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 552 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.7s IncrementalHoareTripleChecker+Time [2022-11-22 02:18:56,531 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1648 Valid, 3153 Invalid, 555 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 552 Invalid, 3 Unknown, 0 Unchecked, 11.7s Time] [2022-11-22 02:18:56,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7165 states. [2022-11-22 02:18:57,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7165 to 7162. [2022-11-22 02:18:57,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7162 states, 4244 states have (on average 1.2504712535344016) internal successors, (5307), 4417 states have internal predecessors, (5307), 2034 states have call successors, (2034), 865 states have call predecessors, (2034), 859 states have return successors, (2065), 1975 states have call predecessors, (2065), 2032 states have call successors, (2065) [2022-11-22 02:18:57,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7162 states to 7162 states and 9406 transitions. [2022-11-22 02:18:57,158 INFO L78 Accepts]: Start accepts. Automaton has 7162 states and 9406 transitions. Word has length 115 [2022-11-22 02:18:57,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:18:57,158 INFO L495 AbstractCegarLoop]: Abstraction has 7162 states and 9406 transitions. [2022-11-22 02:18:57,158 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 02:18:57,159 INFO L276 IsEmpty]: Start isEmpty. Operand 7162 states and 9406 transitions. [2022-11-22 02:18:57,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2022-11-22 02:18:57,160 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:18:57,160 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 02:18:57,160 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-11-22 02:18:57,161 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ldv_linux_net_sock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-11-22 02:18:57,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:18:57,161 INFO L85 PathProgramCache]: Analyzing trace with hash 596895059, now seen corresponding path program 1 times [2022-11-22 02:18:57,161 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:18:57,161 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019350666] [2022-11-22 02:18:57,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:18:57,161 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:18:57,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:18:57,512 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 02:18:57,512 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:18:57,512 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019350666] [2022-11-22 02:18:57,512 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2019350666] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:18:57,512 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:18:57,513 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 02:18:57,513 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [247799557] [2022-11-22 02:18:57,513 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:18:57,513 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 02:18:57,513 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:18:57,514 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 02:18:57,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 02:18:57,514 INFO L87 Difference]: Start difference. First operand 7162 states and 9406 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 02:19:00,217 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:19:04,508 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:19:07,847 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:19:09,839 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.99s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:19:11,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:19:11,451 INFO L93 Difference]: Finished difference Result 7333 states and 9606 transitions. [2022-11-22 02:19:11,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-22 02:19:11,452 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 02:19:11,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:19:11,467 INFO L225 Difference]: With dead ends: 7333 [2022-11-22 02:19:11,467 INFO L226 Difference]: Without dead ends: 7331 [2022-11-22 02:19:11,470 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 02:19:11,470 INFO L413 NwaCegarLoop]: 1964 mSDtfsCounter, 1419 mSDsluCounter, 3364 mSDsCounter, 0 mSdLazyCounter, 867 mSolverCounterSat, 1 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1422 SdHoareTripleChecker+Valid, 5328 SdHoareTripleChecker+Invalid, 871 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 867 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.1s IncrementalHoareTripleChecker+Time [2022-11-22 02:19:11,471 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1422 Valid, 5328 Invalid, 871 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 867 Invalid, 3 Unknown, 0 Unchecked, 13.1s Time] [2022-11-22 02:19:11,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7331 states. [2022-11-22 02:19:12,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7331 to 7174. [2022-11-22 02:19:12,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7174 states, 4250 states have (on average 1.2501176470588236) internal successors, (5313), 4423 states have internal predecessors, (5313), 2038 states have call successors, (2038), 867 states have call predecessors, (2038), 861 states have return successors, (2069), 1979 states have call predecessors, (2069), 2036 states have call successors, (2069) [2022-11-22 02:19:12,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7174 states to 7174 states and 9420 transitions. [2022-11-22 02:19:12,085 INFO L78 Accepts]: Start accepts. Automaton has 7174 states and 9420 transitions. Word has length 120 [2022-11-22 02:19:12,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:19:12,086 INFO L495 AbstractCegarLoop]: Abstraction has 7174 states and 9420 transitions. [2022-11-22 02:19:12,086 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 02:19:12,086 INFO L276 IsEmpty]: Start isEmpty. Operand 7174 states and 9420 transitions. [2022-11-22 02:19:12,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2022-11-22 02:19:12,088 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:19:12,088 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 02:19:12,088 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-11-22 02:19:12,089 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-11-22 02:19:12,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:19:12,089 INFO L85 PathProgramCache]: Analyzing trace with hash -1366601889, now seen corresponding path program 1 times [2022-11-22 02:19:12,089 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:19:12,089 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [29454321] [2022-11-22 02:19:12,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:19:12,090 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:19:12,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:19:12,366 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 02:19:12,366 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:19:12,367 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [29454321] [2022-11-22 02:19:12,367 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [29454321] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:19:12,367 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:19:12,367 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 02:19:12,367 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1139460999] [2022-11-22 02:19:12,367 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:19:12,368 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 02:19:12,368 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:19:12,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 02:19:12,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 02:19:12,368 INFO L87 Difference]: Start difference. First operand 7174 states and 9420 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 02:19:15,209 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:19:19,589 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:19:22,844 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:19:23,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:19:23,632 INFO L93 Difference]: Finished difference Result 7215 states and 9454 transitions. [2022-11-22 02:19:23,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-22 02:19:23,635 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 02:19:23,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:19:23,652 INFO L225 Difference]: With dead ends: 7215 [2022-11-22 02:19:23,652 INFO L226 Difference]: Without dead ends: 7213 [2022-11-22 02:19:23,655 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 02:19:23,656 INFO L413 NwaCegarLoop]: 1958 mSDtfsCounter, 1408 mSDsluCounter, 3358 mSDsCounter, 0 mSdLazyCounter, 862 mSolverCounterSat, 1 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1411 SdHoareTripleChecker+Valid, 5316 SdHoareTripleChecker+Invalid, 866 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 862 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.3s IncrementalHoareTripleChecker+Time [2022-11-22 02:19:23,656 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1411 Valid, 5316 Invalid, 866 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 862 Invalid, 3 Unknown, 0 Unchecked, 10.3s Time] [2022-11-22 02:19:23,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7213 states. [2022-11-22 02:19:24,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7213 to 7180. [2022-11-22 02:19:24,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7180 states, 4253 states have (on average 1.2499412179637903) internal successors, (5316), 4426 states have internal predecessors, (5316), 2040 states have call successors, (2040), 868 states have call predecessors, (2040), 862 states have return successors, (2071), 1981 states have call predecessors, (2071), 2038 states have call successors, (2071) [2022-11-22 02:19:24,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7180 states to 7180 states and 9427 transitions. [2022-11-22 02:19:24,347 INFO L78 Accepts]: Start accepts. Automaton has 7180 states and 9427 transitions. Word has length 125 [2022-11-22 02:19:24,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:19:24,347 INFO L495 AbstractCegarLoop]: Abstraction has 7180 states and 9427 transitions. [2022-11-22 02:19:24,348 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 02:19:24,348 INFO L276 IsEmpty]: Start isEmpty. Operand 7180 states and 9427 transitions. [2022-11-22 02:19:24,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-11-22 02:19:24,349 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:19:24,349 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 02:19:24,349 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-11-22 02:19:24,350 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-11-22 02:19:24,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:19:24,350 INFO L85 PathProgramCache]: Analyzing trace with hash -657803578, now seen corresponding path program 1 times [2022-11-22 02:19:24,350 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:19:24,350 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [393937789] [2022-11-22 02:19:24,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:19:24,351 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:19:24,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:19:24,629 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 02:19:24,629 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:19:24,629 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [393937789] [2022-11-22 02:19:24,629 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [393937789] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:19:24,629 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:19:24,629 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 02:19:24,629 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1589955698] [2022-11-22 02:19:24,629 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:19:24,630 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 02:19:24,630 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:19:24,630 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 02:19:24,630 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 02:19:24,630 INFO L87 Difference]: Start difference. First operand 7180 states and 9427 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 02:19:26,821 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:19:28,847 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:19:32,876 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:19:35,611 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:19:36,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:19:36,112 INFO L93 Difference]: Finished difference Result 7183 states and 9430 transitions. [2022-11-22 02:19:36,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 02:19:36,112 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 02:19:36,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:19:36,130 INFO L225 Difference]: With dead ends: 7183 [2022-11-22 02:19:36,130 INFO L226 Difference]: Without dead ends: 7181 [2022-11-22 02:19:36,133 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 02:19:36,133 INFO L413 NwaCegarLoop]: 1478 mSDtfsCounter, 1640 mSDsluCounter, 1671 mSDsCounter, 0 mSdLazyCounter, 552 mSolverCounterSat, 0 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1643 SdHoareTripleChecker+Valid, 3149 SdHoareTripleChecker+Invalid, 555 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 552 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.7s IncrementalHoareTripleChecker+Time [2022-11-22 02:19:36,134 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1643 Valid, 3149 Invalid, 555 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 552 Invalid, 3 Unknown, 0 Unchecked, 10.7s Time] [2022-11-22 02:19:36,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7181 states. [2022-11-22 02:19:36,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7181 to 7178. [2022-11-22 02:19:36,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7178 states, 4252 states have (on average 1.2497648165569144) internal successors, (5314), 4424 states have internal predecessors, (5314), 2040 states have call successors, (2040), 868 states have call predecessors, (2040), 862 states have return successors, (2071), 1981 states have call predecessors, (2071), 2038 states have call successors, (2071) [2022-11-22 02:19:36,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7178 states to 7178 states and 9425 transitions. [2022-11-22 02:19:36,898 INFO L78 Accepts]: Start accepts. Automaton has 7178 states and 9425 transitions. Word has length 130 [2022-11-22 02:19:36,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:19:36,899 INFO L495 AbstractCegarLoop]: Abstraction has 7178 states and 9425 transitions. [2022-11-22 02:19:36,899 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 02:19:36,900 INFO L276 IsEmpty]: Start isEmpty. Operand 7178 states and 9425 transitions. [2022-11-22 02:19:36,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2022-11-22 02:19:36,903 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:19:36,903 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:19:36,904 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-11-22 02:19:36,904 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ldv_check_alloc_flagsErr1ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-11-22 02:19:36,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:19:36,905 INFO L85 PathProgramCache]: Analyzing trace with hash 246962012, now seen corresponding path program 1 times [2022-11-22 02:19:36,905 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:19:36,905 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1425266128] [2022-11-22 02:19:36,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:19:36,905 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:19:37,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:19:37,732 INFO L134 CoverageAnalysis]: Checked inductivity of 176 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 176 trivial. 0 not checked. [2022-11-22 02:19:37,732 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:19:37,732 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1425266128] [2022-11-22 02:19:37,732 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1425266128] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:19:37,732 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:19:37,732 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-22 02:19:37,733 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [618820323] [2022-11-22 02:19:37,733 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:19:37,733 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 02:19:37,733 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:19:37,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 02:19:37,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-22 02:19:37,734 INFO L87 Difference]: Start difference. First operand 7178 states and 9425 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 3 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2022-11-22 02:19:40,905 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:19:47,324 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:19:50,731 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:19:52,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:19:52,104 INFO L93 Difference]: Finished difference Result 12201 states and 16200 transitions. [2022-11-22 02:19:52,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 02:19:52,104 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 3 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) Word has length 145 [2022-11-22 02:19:52,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:19:52,123 INFO L225 Difference]: With dead ends: 12201 [2022-11-22 02:19:52,123 INFO L226 Difference]: Without dead ends: 7435 [2022-11-22 02:19:52,140 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-11-22 02:19:52,141 INFO L413 NwaCegarLoop]: 1560 mSDtfsCounter, 2032 mSDsluCounter, 914 mSDsCounter, 0 mSdLazyCounter, 1519 mSolverCounterSat, 303 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2033 SdHoareTripleChecker+Valid, 2474 SdHoareTripleChecker+Invalid, 1824 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 303 IncrementalHoareTripleChecker+Valid, 1519 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.1s IncrementalHoareTripleChecker+Time [2022-11-22 02:19:52,141 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2033 Valid, 2474 Invalid, 1824 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [303 Valid, 1519 Invalid, 2 Unknown, 0 Unchecked, 13.1s Time] [2022-11-22 02:19:52,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7435 states. [2022-11-22 02:19:52,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7435 to 7166. [2022-11-22 02:19:52,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7166 states, 4241 states have (on average 1.2480547040792267) internal successors, (5293), 4412 states have internal predecessors, (5293), 2040 states have call successors, (2040), 868 states have call predecessors, (2040), 862 states have return successors, (2071), 1981 states have call predecessors, (2071), 2038 states have call successors, (2071) [2022-11-22 02:19:52,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7166 states to 7166 states and 9404 transitions. [2022-11-22 02:19:52,902 INFO L78 Accepts]: Start accepts. Automaton has 7166 states and 9404 transitions. Word has length 145 [2022-11-22 02:19:52,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:19:52,902 INFO L495 AbstractCegarLoop]: Abstraction has 7166 states and 9404 transitions. [2022-11-22 02:19:52,903 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 3 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2022-11-22 02:19:52,903 INFO L276 IsEmpty]: Start isEmpty. Operand 7166 states and 9404 transitions. [2022-11-22 02:19:52,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-11-22 02:19:52,906 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:19:52,906 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 02:19:52,906 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-11-22 02:19:52,906 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ldv_linux_usb_urb_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-11-22 02:19:52,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:19:52,907 INFO L85 PathProgramCache]: Analyzing trace with hash -1667005784, now seen corresponding path program 1 times [2022-11-22 02:19:52,907 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:19:52,907 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [775732816] [2022-11-22 02:19:52,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:19:52,908 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:19:52,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:19:53,223 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 02:19:53,223 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:19:53,223 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [775732816] [2022-11-22 02:19:53,223 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [775732816] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:19:53,223 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:19:53,223 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 02:19:53,224 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [126659188] [2022-11-22 02:19:53,224 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:19:53,224 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 02:19:53,224 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:19:53,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 02:19:53,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 02:19:53,225 INFO L87 Difference]: Start difference. First operand 7166 states and 9404 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 02:19:55,331 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:20:00,380 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:20:02,943 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.77s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:20:04,954 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:20:07,232 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:20:09,246 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:20:09,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:20:09,470 INFO L93 Difference]: Finished difference Result 7168 states and 9406 transitions. [2022-11-22 02:20:09,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 02:20:09,470 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 02:20:09,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:20:09,493 INFO L225 Difference]: With dead ends: 7168 [2022-11-22 02:20:09,494 INFO L226 Difference]: Without dead ends: 7032 [2022-11-22 02:20:09,505 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-22 02:20:09,506 INFO L413 NwaCegarLoop]: 1474 mSDtfsCounter, 1640 mSDsluCounter, 1667 mSDsCounter, 0 mSdLazyCounter, 554 mSolverCounterSat, 0 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1641 SdHoareTripleChecker+Valid, 3141 SdHoareTripleChecker+Invalid, 558 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 554 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.3s IncrementalHoareTripleChecker+Time [2022-11-22 02:20:09,506 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1641 Valid, 3141 Invalid, 558 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 554 Invalid, 4 Unknown, 0 Unchecked, 15.3s Time] [2022-11-22 02:20:09,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7032 states. [2022-11-22 02:20:10,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7032 to 7030. [2022-11-22 02:20:10,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7030 states, 4173 states have (on average 1.2508986340762043) internal successors, (5220), 4340 states have internal predecessors, (5220), 1994 states have call successors, (1994), 848 states have call predecessors, (1994), 841 states have return successors, (2023), 1937 states have call predecessors, (2023), 1990 states have call successors, (2023) [2022-11-22 02:20:10,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7030 states to 7030 states and 9237 transitions. [2022-11-22 02:20:10,732 INFO L78 Accepts]: Start accepts. Automaton has 7030 states and 9237 transitions. Word has length 135 [2022-11-22 02:20:10,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:20:10,732 INFO L495 AbstractCegarLoop]: Abstraction has 7030 states and 9237 transitions. [2022-11-22 02:20:10,732 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 02:20:10,733 INFO L276 IsEmpty]: Start isEmpty. Operand 7030 states and 9237 transitions. [2022-11-22 02:20:10,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2022-11-22 02:20:10,736 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:20:10,737 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:20:10,737 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-11-22 02:20:10,737 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-11-22 02:20:10,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:20:10,738 INFO L85 PathProgramCache]: Analyzing trace with hash 1062282605, now seen corresponding path program 1 times [2022-11-22 02:20:10,738 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:20:10,739 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2006244728] [2022-11-22 02:20:10,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:20:10,739 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:20:10,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:20:11,261 INFO L134 CoverageAnalysis]: Checked inductivity of 176 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 174 trivial. 0 not checked. [2022-11-22 02:20:11,262 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:20:11,262 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2006244728] [2022-11-22 02:20:11,262 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2006244728] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:20:11,262 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:20:11,262 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 02:20:11,262 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1864042848] [2022-11-22 02:20:11,262 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:20:11,263 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 02:20:11,263 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:20:11,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 02:20:11,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:20:11,264 INFO L87 Difference]: Start difference. First operand 7030 states and 9237 transitions. Second operand has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 3 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-11-22 02:20:15,848 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.41s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:20:20,422 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:20:22,830 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.66s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:20:24,845 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:20:25,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:20:25,955 INFO L93 Difference]: Finished difference Result 15912 states and 21474 transitions. [2022-11-22 02:20:25,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 02:20:25,956 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 3 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 155 [2022-11-22 02:20:25,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:20:26,002 INFO L225 Difference]: With dead ends: 15912 [2022-11-22 02:20:26,002 INFO L226 Difference]: Without dead ends: 8903 [2022-11-22 02:20:26,033 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 02:20:26,034 INFO L413 NwaCegarLoop]: 2048 mSDtfsCounter, 365 mSDsluCounter, 1578 mSDsCounter, 0 mSdLazyCounter, 597 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 550 SdHoareTripleChecker+Valid, 3626 SdHoareTripleChecker+Invalid, 599 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 597 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.4s IncrementalHoareTripleChecker+Time [2022-11-22 02:20:26,035 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [550 Valid, 3626 Invalid, 599 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 597 Invalid, 2 Unknown, 0 Unchecked, 13.4s Time] [2022-11-22 02:20:26,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8903 states. [2022-11-22 02:20:27,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8903 to 7058. [2022-11-22 02:20:27,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7058 states, 4194 states have (on average 1.2496423462088697) internal successors, (5241), 4361 states have internal predecessors, (5241), 2001 states have call successors, (2001), 848 states have call predecessors, (2001), 841 states have return successors, (2030), 1944 states have call predecessors, (2030), 1997 states have call successors, (2030) [2022-11-22 02:20:27,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7058 states to 7058 states and 9272 transitions. [2022-11-22 02:20:27,125 INFO L78 Accepts]: Start accepts. Automaton has 7058 states and 9272 transitions. Word has length 155 [2022-11-22 02:20:27,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:20:27,126 INFO L495 AbstractCegarLoop]: Abstraction has 7058 states and 9272 transitions. [2022-11-22 02:20:27,126 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 3 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-11-22 02:20:27,126 INFO L276 IsEmpty]: Start isEmpty. Operand 7058 states and 9272 transitions. [2022-11-22 02:20:27,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2022-11-22 02:20:27,129 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:20:27,129 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:20:27,129 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-11-22 02:20:27,129 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-11-22 02:20:27,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:20:27,130 INFO L85 PathProgramCache]: Analyzing trace with hash -810542077, now seen corresponding path program 1 times [2022-11-22 02:20:27,130 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:20:27,130 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1020606738] [2022-11-22 02:20:27,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:20:27,131 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:20:27,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:20:27,780 INFO L134 CoverageAnalysis]: Checked inductivity of 208 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 208 trivial. 0 not checked. [2022-11-22 02:20:27,780 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:20:27,780 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1020606738] [2022-11-22 02:20:27,780 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1020606738] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:20:27,780 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:20:27,780 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-22 02:20:27,781 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2073104602] [2022-11-22 02:20:27,781 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:20:27,781 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 02:20:27,781 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:20:27,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 02:20:27,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-22 02:20:27,782 INFO L87 Difference]: Start difference. First operand 7058 states and 9272 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (30), 3 states have call predecessors, (30), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2022-11-22 02:20:30,987 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:20:35,235 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:20:37,777 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:20:41,313 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:20:42,584 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:20:45,106 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:20:45,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:20:45,872 INFO L93 Difference]: Finished difference Result 7154 states and 9355 transitions. [2022-11-22 02:20:45,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-22 02:20:45,873 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (30), 3 states have call predecessors, (30), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 161 [2022-11-22 02:20:45,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:20:45,891 INFO L225 Difference]: With dead ends: 7154 [2022-11-22 02:20:45,891 INFO L226 Difference]: Without dead ends: 7152 [2022-11-22 02:20:45,895 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-22 02:20:45,895 INFO L413 NwaCegarLoop]: 1496 mSDtfsCounter, 406 mSDsluCounter, 4249 mSDsCounter, 0 mSdLazyCounter, 1039 mSolverCounterSat, 1 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 408 SdHoareTripleChecker+Valid, 5745 SdHoareTripleChecker+Invalid, 1044 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1039 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.0s IncrementalHoareTripleChecker+Time [2022-11-22 02:20:45,895 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [408 Valid, 5745 Invalid, 1044 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1039 Invalid, 4 Unknown, 0 Unchecked, 17.0s Time] [2022-11-22 02:20:45,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7152 states. [2022-11-22 02:20:46,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7152 to 7150. [2022-11-22 02:20:46,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7150 states, 4246 states have (on average 1.2461139896373057) internal successors, (5291), 4413 states have internal predecessors, (5291), 2011 states have call successors, (2011), 878 states have call predecessors, (2011), 871 states have return successors, (2040), 1954 states have call predecessors, (2040), 2007 states have call successors, (2040) [2022-11-22 02:20:46,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7150 states to 7150 states and 9342 transitions. [2022-11-22 02:20:46,830 INFO L78 Accepts]: Start accepts. Automaton has 7150 states and 9342 transitions. Word has length 161 [2022-11-22 02:20:46,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:20:46,831 INFO L495 AbstractCegarLoop]: Abstraction has 7150 states and 9342 transitions. [2022-11-22 02:20:46,831 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (30), 3 states have call predecessors, (30), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2022-11-22 02:20:46,831 INFO L276 IsEmpty]: Start isEmpty. Operand 7150 states and 9342 transitions. [2022-11-22 02:20:46,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2022-11-22 02:20:46,835 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:20:46,835 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:20:46,835 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-11-22 02:20:46,836 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-11-22 02:20:46,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:20:46,836 INFO L85 PathProgramCache]: Analyzing trace with hash -14409861, now seen corresponding path program 1 times [2022-11-22 02:20:46,836 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:20:46,837 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1578684559] [2022-11-22 02:20:46,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:20:46,837 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:20:47,036 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-22 02:20:47,037 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1708047092] [2022-11-22 02:20:47,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:20:47,037 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 02:20:47,038 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_008eb9d7-1945-4032-b8a1-eda75cf95201/bin/utaipan-g80aRyZoba/z3 [2022-11-22 02:20:47,041 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_008eb9d7-1945-4032-b8a1-eda75cf95201/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 02:20:47,076 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_008eb9d7-1945-4032-b8a1-eda75cf95201/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-22 02:20:48,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:20:48,764 INFO L263 TraceCheckSpWp]: Trace formula consists of 3684 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-22 02:20:48,781 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 02:20:49,727 INFO L134 CoverageAnalysis]: Checked inductivity of 186 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 186 trivial. 0 not checked. [2022-11-22 02:20:49,728 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 02:20:49,728 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:20:49,728 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1578684559] [2022-11-22 02:20:49,729 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-22 02:20:49,729 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1708047092] [2022-11-22 02:20:49,729 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1708047092] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:20:49,729 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:20:49,730 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 02:20:49,730 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1327080940] [2022-11-22 02:20:49,730 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:20:49,731 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 02:20:49,731 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:20:49,732 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 02:20:49,732 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-22 02:20:49,732 INFO L87 Difference]: Start difference. First operand 7150 states and 9342 transitions. Second operand has 5 states, 5 states have (on average 14.0) internal successors, (70), 3 states have internal predecessors, (70), 1 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2022-11-22 02:20:52,751 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:20:56,873 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:21:01,567 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:21:02,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:21:02,298 INFO L93 Difference]: Finished difference Result 7193 states and 9374 transitions. [2022-11-22 02:21:02,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-22 02:21:02,298 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 3 states have internal predecessors, (70), 1 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) Word has length 160 [2022-11-22 02:21:02,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:21:02,322 INFO L225 Difference]: With dead ends: 7193 [2022-11-22 02:21:02,322 INFO L226 Difference]: Without dead ends: 7191 [2022-11-22 02:21:02,327 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 156 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-22 02:21:02,328 INFO L413 NwaCegarLoop]: 1465 mSDtfsCounter, 1510 mSDsluCounter, 3148 mSDsCounter, 0 mSdLazyCounter, 812 mSolverCounterSat, 1 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1512 SdHoareTripleChecker+Valid, 4613 SdHoareTripleChecker+Invalid, 816 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 812 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.4s IncrementalHoareTripleChecker+Time [2022-11-22 02:21:02,328 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1512 Valid, 4613 Invalid, 816 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 812 Invalid, 3 Unknown, 0 Unchecked, 11.4s Time] [2022-11-22 02:21:02,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7191 states. [2022-11-22 02:21:03,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7191 to 7188. [2022-11-22 02:21:03,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7188 states, 4272 states have (on average 1.2427434456928839) internal successors, (5309), 4439 states have internal predecessors, (5309), 2011 states have call successors, (2011), 890 states have call predecessors, (2011), 883 states have return successors, (2040), 1954 states have call predecessors, (2040), 2007 states have call successors, (2040) [2022-11-22 02:21:03,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7188 states to 7188 states and 9360 transitions. [2022-11-22 02:21:03,349 INFO L78 Accepts]: Start accepts. Automaton has 7188 states and 9360 transitions. Word has length 160 [2022-11-22 02:21:03,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:21:03,350 INFO L495 AbstractCegarLoop]: Abstraction has 7188 states and 9360 transitions. [2022-11-22 02:21:03,350 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 3 states have internal predecessors, (70), 1 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2022-11-22 02:21:03,350 INFO L276 IsEmpty]: Start isEmpty. Operand 7188 states and 9360 transitions. [2022-11-22 02:21:03,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2022-11-22 02:21:03,353 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:21:03,354 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:21:03,372 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_008eb9d7-1945-4032-b8a1-eda75cf95201/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-22 02:21:03,568 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_008eb9d7-1945-4032-b8a1-eda75cf95201/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable31 [2022-11-22 02:21:03,568 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-11-22 02:21:03,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:21:03,569 INFO L85 PathProgramCache]: Analyzing trace with hash 472837170, now seen corresponding path program 1 times [2022-11-22 02:21:03,569 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:21:03,569 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [670887883] [2022-11-22 02:21:03,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:21:03,569 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:21:03,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:21:04,073 INFO L134 CoverageAnalysis]: Checked inductivity of 186 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 186 trivial. 0 not checked. [2022-11-22 02:21:04,074 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:21:04,074 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [670887883] [2022-11-22 02:21:04,074 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [670887883] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:21:04,074 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:21:04,074 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 02:21:04,075 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1518014709] [2022-11-22 02:21:04,075 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:21:04,075 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 02:21:04,075 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:21:04,075 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 02:21:04,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 02:21:04,076 INFO L87 Difference]: Start difference. First operand 7188 states and 9360 transitions. Second operand has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-11-22 02:21:06,835 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.78s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:21:08,863 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:21:10,085 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:21:13,882 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:21:16,722 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:21:21,071 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:21:23,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:21:23,187 INFO L93 Difference]: Finished difference Result 14147 states and 19108 transitions. [2022-11-22 02:21:23,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 02:21:23,188 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 163 [2022-11-22 02:21:23,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:21:23,212 INFO L225 Difference]: With dead ends: 14147 [2022-11-22 02:21:23,212 INFO L226 Difference]: Without dead ends: 9266 [2022-11-22 02:21:23,229 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 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 02:21:23,230 INFO L413 NwaCegarLoop]: 2035 mSDtfsCounter, 625 mSDsluCounter, 3463 mSDsCounter, 0 mSdLazyCounter, 899 mSolverCounterSat, 253 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 783 SdHoareTripleChecker+Valid, 5498 SdHoareTripleChecker+Invalid, 1156 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 253 IncrementalHoareTripleChecker+Valid, 899 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.4s IncrementalHoareTripleChecker+Time [2022-11-22 02:21:23,230 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [783 Valid, 5498 Invalid, 1156 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [253 Valid, 899 Invalid, 4 Unknown, 0 Unchecked, 17.4s Time] [2022-11-22 02:21:23,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9266 states. [2022-11-22 02:21:24,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9266 to 7192. [2022-11-22 02:21:24,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7192 states, 4276 states have (on average 1.2425163704396633) internal successors, (5313), 4443 states have internal predecessors, (5313), 2011 states have call successors, (2011), 890 states have call predecessors, (2011), 883 states have return successors, (2040), 1954 states have call predecessors, (2040), 2007 states have call successors, (2040) [2022-11-22 02:21:24,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7192 states to 7192 states and 9364 transitions. [2022-11-22 02:21:24,350 INFO L78 Accepts]: Start accepts. Automaton has 7192 states and 9364 transitions. Word has length 163 [2022-11-22 02:21:24,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:21:24,351 INFO L495 AbstractCegarLoop]: Abstraction has 7192 states and 9364 transitions. [2022-11-22 02:21:24,351 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-11-22 02:21:24,352 INFO L276 IsEmpty]: Start isEmpty. Operand 7192 states and 9364 transitions. [2022-11-22 02:21:24,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-11-22 02:21:24,355 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:21:24,355 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:21:24,355 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-11-22 02:21:24,355 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-11-22 02:21:24,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:21:24,356 INFO L85 PathProgramCache]: Analyzing trace with hash 1867387272, now seen corresponding path program 1 times [2022-11-22 02:21:24,356 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:21:24,356 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1364874086] [2022-11-22 02:21:24,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:21:24,357 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:21:24,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:21:24,968 INFO L134 CoverageAnalysis]: Checked inductivity of 193 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2022-11-22 02:21:24,968 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:21:24,968 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1364874086] [2022-11-22 02:21:24,968 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1364874086] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:21:24,968 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:21:24,969 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-22 02:21:24,969 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [339359407] [2022-11-22 02:21:24,969 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:21:24,969 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 02:21:24,969 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:21:24,970 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 02:21:24,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-22 02:21:24,970 INFO L87 Difference]: Start difference. First operand 7192 states and 9364 transitions. Second operand has 5 states, 5 states have (on average 14.0) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (23), 3 states have call predecessors, (23), 2 states have call successors, (23) [2022-11-22 02:21:28,118 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:21:32,941 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:21:36,988 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:21:39,000 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:21:40,963 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.96s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:21:41,971 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:21:43,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:21:43,640 INFO L93 Difference]: Finished difference Result 12848 states and 16979 transitions. [2022-11-22 02:21:43,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-22 02:21:43,640 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (23), 3 states have call predecessors, (23), 2 states have call successors, (23) Word has length 165 [2022-11-22 02:21:43,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:21:43,672 INFO L225 Difference]: With dead ends: 12848 [2022-11-22 02:21:43,672 INFO L226 Difference]: Without dead ends: 7963 [2022-11-22 02:21:43,689 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-22 02:21:43,690 INFO L413 NwaCegarLoop]: 1804 mSDtfsCounter, 311 mSDsluCounter, 4997 mSDsCounter, 0 mSdLazyCounter, 1129 mSolverCounterSat, 2 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 471 SdHoareTripleChecker+Valid, 6801 SdHoareTripleChecker+Invalid, 1134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1129 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.3s IncrementalHoareTripleChecker+Time [2022-11-22 02:21:43,690 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [471 Valid, 6801 Invalid, 1134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1129 Invalid, 3 Unknown, 0 Unchecked, 17.3s Time] [2022-11-22 02:21:43,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7963 states. [2022-11-22 02:21:44,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7963 to 7200. [2022-11-22 02:21:44,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7200 states, 4282 states have (on average 1.242176553012611) internal successors, (5319), 4449 states have internal predecessors, (5319), 2011 states have call successors, (2011), 890 states have call predecessors, (2011), 885 states have return successors, (2044), 1956 states have call predecessors, (2044), 2007 states have call successors, (2044) [2022-11-22 02:21:44,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7200 states to 7200 states and 9374 transitions. [2022-11-22 02:21:44,908 INFO L78 Accepts]: Start accepts. Automaton has 7200 states and 9374 transitions. Word has length 165 [2022-11-22 02:21:44,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:21:44,909 INFO L495 AbstractCegarLoop]: Abstraction has 7200 states and 9374 transitions. [2022-11-22 02:21:44,909 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (23), 3 states have call predecessors, (23), 2 states have call successors, (23) [2022-11-22 02:21:44,909 INFO L276 IsEmpty]: Start isEmpty. Operand 7200 states and 9374 transitions. [2022-11-22 02:21:44,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2022-11-22 02:21:44,911 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:21:44,911 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:21:44,911 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-11-22 02:21:44,912 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-11-22 02:21:44,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:21:44,912 INFO L85 PathProgramCache]: Analyzing trace with hash -1962072602, now seen corresponding path program 1 times [2022-11-22 02:21:44,912 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:21:44,913 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2141634974] [2022-11-22 02:21:44,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:21:44,913 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:21:45,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:21:45,874 INFO L134 CoverageAnalysis]: Checked inductivity of 184 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 182 trivial. 0 not checked. [2022-11-22 02:21:45,874 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:21:45,875 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2141634974] [2022-11-22 02:21:45,875 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2141634974] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:21:45,875 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:21:45,875 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-22 02:21:45,875 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1562667748] [2022-11-22 02:21:45,875 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:21:45,876 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-22 02:21:45,876 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:21:45,876 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-22 02:21:45,876 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-22 02:21:45,877 INFO L87 Difference]: Start difference. First operand 7200 states and 9374 transitions. Second operand has 7 states, 6 states have (on average 12.5) internal successors, (75), 5 states have internal predecessors, (75), 3 states have call successors, (27), 2 states have call predecessors, (27), 3 states have return successors, (25), 4 states have call predecessors, (25), 2 states have call successors, (25) [2022-11-22 02:21:49,598 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:21:55,719 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:21:58,489 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:22:01,460 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.81s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:22:03,476 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:22:06,425 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:22:07,880 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:22:09,889 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:22:12,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:22:12,473 INFO L93 Difference]: Finished difference Result 16109 states and 21545 transitions. [2022-11-22 02:22:12,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-22 02:22:12,473 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 12.5) internal successors, (75), 5 states have internal predecessors, (75), 3 states have call successors, (27), 2 states have call predecessors, (27), 3 states have return successors, (25), 4 states have call predecessors, (25), 2 states have call successors, (25) Word has length 169 [2022-11-22 02:22:12,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:22:12,510 INFO L225 Difference]: With dead ends: 16109 [2022-11-22 02:22:12,510 INFO L226 Difference]: Without dead ends: 8930 [2022-11-22 02:22:12,530 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-11-22 02:22:12,530 INFO L413 NwaCegarLoop]: 1872 mSDtfsCounter, 237 mSDsluCounter, 9006 mSDsCounter, 0 mSdLazyCounter, 1868 mSolverCounterSat, 1 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 24.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 393 SdHoareTripleChecker+Valid, 10878 SdHoareTripleChecker+Invalid, 1874 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1868 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 24.8s IncrementalHoareTripleChecker+Time [2022-11-22 02:22:12,531 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [393 Valid, 10878 Invalid, 1874 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 1868 Invalid, 5 Unknown, 0 Unchecked, 24.8s Time] [2022-11-22 02:22:12,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8930 states. [2022-11-22 02:22:13,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8930 to 7235. [2022-11-22 02:22:13,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7235 states, 4303 states have (on average 1.240994654891936) internal successors, (5340), 4470 states have internal predecessors, (5340), 2011 states have call successors, (2011), 890 states have call predecessors, (2011), 899 states have return successors, (2063), 1970 states have call predecessors, (2063), 2007 states have call successors, (2063) [2022-11-22 02:22:13,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7235 states to 7235 states and 9414 transitions. [2022-11-22 02:22:13,719 INFO L78 Accepts]: Start accepts. Automaton has 7235 states and 9414 transitions. Word has length 169 [2022-11-22 02:22:13,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:22:13,720 INFO L495 AbstractCegarLoop]: Abstraction has 7235 states and 9414 transitions. [2022-11-22 02:22:13,720 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 12.5) internal successors, (75), 5 states have internal predecessors, (75), 3 states have call successors, (27), 2 states have call predecessors, (27), 3 states have return successors, (25), 4 states have call predecessors, (25), 2 states have call successors, (25) [2022-11-22 02:22:13,720 INFO L276 IsEmpty]: Start isEmpty. Operand 7235 states and 9414 transitions. [2022-11-22 02:22:13,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2022-11-22 02:22:13,722 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:22:13,722 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:22:13,723 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-11-22 02:22:13,723 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-11-22 02:22:13,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:22:13,724 INFO L85 PathProgramCache]: Analyzing trace with hash -59100424, now seen corresponding path program 1 times [2022-11-22 02:22:13,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:22:13,724 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2033014876] [2022-11-22 02:22:13,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:22:13,724 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:22:13,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:22:14,208 INFO L134 CoverageAnalysis]: Checked inductivity of 193 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2022-11-22 02:22:14,208 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:22:14,209 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2033014876] [2022-11-22 02:22:14,209 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2033014876] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:22:14,209 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:22:14,209 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 02:22:14,209 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [975872586] [2022-11-22 02:22:14,209 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:22:14,210 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 02:22:14,210 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:22:14,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 02:22:14,210 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 02:22:14,211 INFO L87 Difference]: Start difference. First operand 7235 states and 9414 transitions. Second operand has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2022-11-22 02:22:17,131 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:22:20,758 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:22:24,629 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:22:25,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:22:25,460 INFO L93 Difference]: Finished difference Result 14873 states and 19457 transitions. [2022-11-22 02:22:25,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-22 02:22:25,463 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 170 [2022-11-22 02:22:25,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:22:25,485 INFO L225 Difference]: With dead ends: 14873 [2022-11-22 02:22:25,485 INFO L226 Difference]: Without dead ends: 7659 [2022-11-22 02:22:25,502 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 02:22:25,502 INFO L413 NwaCegarLoop]: 1456 mSDtfsCounter, 100 mSDsluCounter, 2825 mSDsCounter, 0 mSdLazyCounter, 749 mSolverCounterSat, 27 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 4281 SdHoareTripleChecker+Invalid, 779 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 749 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.0s IncrementalHoareTripleChecker+Time [2022-11-22 02:22:25,502 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [113 Valid, 4281 Invalid, 779 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 749 Invalid, 3 Unknown, 0 Unchecked, 10.0s Time] [2022-11-22 02:22:25,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7659 states. [2022-11-22 02:22:26,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7659 to 7249. [2022-11-22 02:22:26,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7249 states, 4317 states have (on average 1.240213110956683) internal successors, (5354), 4484 states have internal predecessors, (5354), 2011 states have call successors, (2011), 890 states have call predecessors, (2011), 899 states have return successors, (2063), 1970 states have call predecessors, (2063), 2007 states have call successors, (2063) [2022-11-22 02:22:26,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7249 states to 7249 states and 9428 transitions. [2022-11-22 02:22:26,697 INFO L78 Accepts]: Start accepts. Automaton has 7249 states and 9428 transitions. Word has length 170 [2022-11-22 02:22:26,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:22:26,698 INFO L495 AbstractCegarLoop]: Abstraction has 7249 states and 9428 transitions. [2022-11-22 02:22:26,698 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2022-11-22 02:22:26,698 INFO L276 IsEmpty]: Start isEmpty. Operand 7249 states and 9428 transitions. [2022-11-22 02:22:26,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2022-11-22 02:22:26,700 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:22:26,700 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:22:26,700 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-11-22 02:22:26,700 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-11-22 02:22:26,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:22:26,701 INFO L85 PathProgramCache]: Analyzing trace with hash 1039317452, now seen corresponding path program 1 times [2022-11-22 02:22:26,701 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:22:26,701 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [613091287] [2022-11-22 02:22:26,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:22:26,702 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:22:26,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:22:27,278 INFO L134 CoverageAnalysis]: Checked inductivity of 186 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 186 trivial. 0 not checked. [2022-11-22 02:22:27,278 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:22:27,278 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [613091287] [2022-11-22 02:22:27,279 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [613091287] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:22:27,279 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:22:27,279 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 02:22:27,279 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1925377250] [2022-11-22 02:22:27,279 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:22:27,280 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 02:22:27,280 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:22:27,280 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 02:22:27,280 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 02:22:27,280 INFO L87 Difference]: Start difference. First operand 7249 states and 9428 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, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-11-22 02:22:29,725 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:22:31,755 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:22:33,778 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:22:36,612 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:22:37,926 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:22:40,536 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:22:45,191 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:22:48,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:22:48,034 INFO L93 Difference]: Finished difference Result 16075 states and 22179 transitions. [2022-11-22 02:22:48,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-22 02:22:48,034 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, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 168 [2022-11-22 02:22:48,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:22:48,063 INFO L225 Difference]: With dead ends: 16075 [2022-11-22 02:22:48,064 INFO L226 Difference]: Without dead ends: 11147 [2022-11-22 02:22:48,074 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-22 02:22:48,074 INFO L413 NwaCegarLoop]: 2441 mSDtfsCounter, 1065 mSDsluCounter, 4027 mSDsCounter, 0 mSdLazyCounter, 1008 mSolverCounterSat, 341 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1428 SdHoareTripleChecker+Valid, 6468 SdHoareTripleChecker+Invalid, 1353 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 341 IncrementalHoareTripleChecker+Valid, 1008 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.3s IncrementalHoareTripleChecker+Time [2022-11-22 02:22:48,074 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1428 Valid, 6468 Invalid, 1353 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [341 Valid, 1008 Invalid, 4 Unknown, 0 Unchecked, 18.3s Time] [2022-11-22 02:22:48,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11147 states. [2022-11-22 02:22:49,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11147 to 7253. [2022-11-22 02:22:49,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7253 states, 4321 states have (on average 1.2399907428835917) internal successors, (5358), 4488 states have internal predecessors, (5358), 2011 states have call successors, (2011), 890 states have call predecessors, (2011), 899 states have return successors, (2063), 1970 states have call predecessors, (2063), 2007 states have call successors, (2063) [2022-11-22 02:22:49,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7253 states to 7253 states and 9432 transitions. [2022-11-22 02:22:49,249 INFO L78 Accepts]: Start accepts. Automaton has 7253 states and 9432 transitions. Word has length 168 [2022-11-22 02:22:49,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:22:49,249 INFO L495 AbstractCegarLoop]: Abstraction has 7253 states and 9432 transitions. [2022-11-22 02:22:49,250 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, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-11-22 02:22:49,250 INFO L276 IsEmpty]: Start isEmpty. Operand 7253 states and 9432 transitions. [2022-11-22 02:22:49,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2022-11-22 02:22:49,252 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:22:49,253 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:22:49,253 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-11-22 02:22:49,253 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-11-22 02:22:49,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:22:49,254 INFO L85 PathProgramCache]: Analyzing trace with hash -294743488, now seen corresponding path program 1 times [2022-11-22 02:22:49,254 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:22:49,254 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [919748354] [2022-11-22 02:22:49,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:22:49,254 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:22:49,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:22:50,321 INFO L134 CoverageAnalysis]: Checked inductivity of 207 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 207 trivial. 0 not checked. [2022-11-22 02:22:50,322 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:22:50,322 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [919748354] [2022-11-22 02:22:50,322 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [919748354] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:22:50,322 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:22:50,322 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-22 02:22:50,322 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [364347011] [2022-11-22 02:22:50,322 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:22:50,323 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 02:22:50,323 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:22:50,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 02:22:50,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-22 02:22:50,324 INFO L87 Difference]: Start difference. First operand 7253 states and 9432 transitions. Second operand has 5 states, 5 states have (on average 14.8) internal successors, (74), 4 states have internal predecessors, (74), 2 states have call successors, (28), 3 states have call predecessors, (28), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2022-11-22 02:22:53,191 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:22:57,089 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:23:01,378 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:23:02,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:23:02,380 INFO L93 Difference]: Finished difference Result 7253 states and 9432 transitions. [2022-11-22 02:23:02,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-22 02:23:02,381 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 4 states have internal predecessors, (74), 2 states have call successors, (28), 3 states have call predecessors, (28), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 176 [2022-11-22 02:23:02,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:23:02,396 INFO L225 Difference]: With dead ends: 7253 [2022-11-22 02:23:02,396 INFO L226 Difference]: Without dead ends: 7251 [2022-11-22 02:23:02,400 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-22 02:23:02,400 INFO L413 NwaCegarLoop]: 1417 mSDtfsCounter, 1235 mSDsluCounter, 3181 mSDsCounter, 0 mSdLazyCounter, 830 mSolverCounterSat, 2 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1237 SdHoareTripleChecker+Valid, 4598 SdHoareTripleChecker+Invalid, 835 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 830 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.7s IncrementalHoareTripleChecker+Time [2022-11-22 02:23:02,401 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1237 Valid, 4598 Invalid, 835 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 830 Invalid, 3 Unknown, 0 Unchecked, 10.7s Time] [2022-11-22 02:23:02,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7251 states. [2022-11-22 02:23:03,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7251 to 7251. [2022-11-22 02:23:03,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7251 states, 4320 states have (on average 1.2395833333333333) internal successors, (5355), 4486 states have internal predecessors, (5355), 2011 states have call successors, (2011), 890 states have call predecessors, (2011), 899 states have return successors, (2063), 1970 states have call predecessors, (2063), 2007 states have call successors, (2063) [2022-11-22 02:23:03,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7251 states to 7251 states and 9429 transitions. [2022-11-22 02:23:03,344 INFO L78 Accepts]: Start accepts. Automaton has 7251 states and 9429 transitions. Word has length 176 [2022-11-22 02:23:03,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:23:03,345 INFO L495 AbstractCegarLoop]: Abstraction has 7251 states and 9429 transitions. [2022-11-22 02:23:03,345 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 4 states have internal predecessors, (74), 2 states have call successors, (28), 3 states have call predecessors, (28), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2022-11-22 02:23:03,345 INFO L276 IsEmpty]: Start isEmpty. Operand 7251 states and 9429 transitions. [2022-11-22 02:23:03,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2022-11-22 02:23:03,348 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:23:03,348 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:23:03,348 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-11-22 02:23:03,348 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-11-22 02:23:03,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:23:03,349 INFO L85 PathProgramCache]: Analyzing trace with hash 848268073, now seen corresponding path program 1 times [2022-11-22 02:23:03,349 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:23:03,349 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1420880580] [2022-11-22 02:23:03,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:23:03,349 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:23:03,506 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-22 02:23:03,506 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [157516019] [2022-11-22 02:23:03,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:23:03,507 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 02:23:03,507 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_008eb9d7-1945-4032-b8a1-eda75cf95201/bin/utaipan-g80aRyZoba/z3 [2022-11-22 02:23:03,508 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_008eb9d7-1945-4032-b8a1-eda75cf95201/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 02:23:03,510 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_008eb9d7-1945-4032-b8a1-eda75cf95201/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-22 02:23:06,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:23:06,629 INFO L263 TraceCheckSpWp]: Trace formula consists of 3755 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-22 02:23:06,640 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 02:23:06,677 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 178 trivial. 0 not checked. [2022-11-22 02:23:06,677 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 02:23:06,678 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:23:06,678 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1420880580] [2022-11-22 02:23:06,678 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-22 02:23:06,678 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [157516019] [2022-11-22 02:23:06,678 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [157516019] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:23:06,679 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:23:06,679 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 02:23:06,679 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1781753558] [2022-11-22 02:23:06,679 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:23:06,680 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 02:23:06,680 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:23:06,681 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 02:23:06,681 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:23:06,681 INFO L87 Difference]: Start difference. First operand 7251 states and 9429 transitions. Second operand has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2022-11-22 02:23:08,434 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:23:09,807 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:23:13,412 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:23:17,293 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:23:18,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:23:18,104 INFO L93 Difference]: Finished difference Result 14656 states and 19110 transitions. [2022-11-22 02:23:18,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 02:23:18,105 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 174 [2022-11-22 02:23:18,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:23:18,121 INFO L225 Difference]: With dead ends: 14656 [2022-11-22 02:23:18,121 INFO L226 Difference]: Without dead ends: 7426 [2022-11-22 02:23:18,134 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 173 GetRequests, 172 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 02:23:18,134 INFO L413 NwaCegarLoop]: 1408 mSDtfsCounter, 16 mSDsluCounter, 1394 mSDsCounter, 0 mSdLazyCounter, 521 mSolverCounterSat, 3 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 2802 SdHoareTripleChecker+Invalid, 526 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 521 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.0s IncrementalHoareTripleChecker+Time [2022-11-22 02:23:18,135 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 2802 Invalid, 526 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 521 Invalid, 2 Unknown, 0 Unchecked, 10.0s Time] [2022-11-22 02:23:18,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7426 states. [2022-11-22 02:23:19,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7426 to 7265. [2022-11-22 02:23:19,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7265 states, 4334 states have (on average 1.2388094139363175) internal successors, (5369), 4500 states have internal predecessors, (5369), 2011 states have call successors, (2011), 890 states have call predecessors, (2011), 899 states have return successors, (2063), 1970 states have call predecessors, (2063), 2007 states have call successors, (2063) [2022-11-22 02:23:19,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7265 states to 7265 states and 9443 transitions. [2022-11-22 02:23:19,154 INFO L78 Accepts]: Start accepts. Automaton has 7265 states and 9443 transitions. Word has length 174 [2022-11-22 02:23:19,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:23:19,154 INFO L495 AbstractCegarLoop]: Abstraction has 7265 states and 9443 transitions. [2022-11-22 02:23:19,154 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2022-11-22 02:23:19,154 INFO L276 IsEmpty]: Start isEmpty. Operand 7265 states and 9443 transitions. [2022-11-22 02:23:19,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-11-22 02:23:19,156 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:23:19,156 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 5, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:23:19,175 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_008eb9d7-1945-4032-b8a1-eda75cf95201/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-22 02:23:19,357 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_008eb9d7-1945-4032-b8a1-eda75cf95201/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2022-11-22 02:23:19,357 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-11-22 02:23:19,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:23:19,358 INFO L85 PathProgramCache]: Analyzing trace with hash -766434429, now seen corresponding path program 1 times [2022-11-22 02:23:19,358 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:23:19,358 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [973545843] [2022-11-22 02:23:19,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:23:19,359 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:23:19,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:23:20,684 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 251 trivial. 0 not checked. [2022-11-22 02:23:20,684 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:23:20,684 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [973545843] [2022-11-22 02:23:20,684 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [973545843] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:23:20,684 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:23:20,684 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-22 02:23:20,685 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [192377360] [2022-11-22 02:23:20,685 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:23:20,685 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-22 02:23:20,685 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:23:20,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-22 02:23:20,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-22 02:23:20,686 INFO L87 Difference]: Start difference. First operand 7265 states and 9443 transitions. Second operand has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 5 states have internal predecessors, (77), 3 states have call successors, (30), 3 states have call predecessors, (30), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2022-11-22 02:23:23,383 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:23:25,399 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:23:27,403 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:23:32,440 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:23:35,312 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:23:36,714 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.40s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:23:40,093 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.91s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:23:40,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:23:40,574 INFO L93 Difference]: Finished difference Result 7477 states and 9604 transitions. [2022-11-22 02:23:40,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-22 02:23:40,575 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 5 states have internal predecessors, (77), 3 states have call successors, (30), 3 states have call predecessors, (30), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 182 [2022-11-22 02:23:40,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:23:40,589 INFO L225 Difference]: With dead ends: 7477 [2022-11-22 02:23:40,589 INFO L226 Difference]: Without dead ends: 7475 [2022-11-22 02:23:40,591 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2022-11-22 02:23:40,591 INFO L413 NwaCegarLoop]: 1526 mSDtfsCounter, 2477 mSDsluCounter, 3345 mSDsCounter, 0 mSdLazyCounter, 861 mSolverCounterSat, 718 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2481 SdHoareTripleChecker+Valid, 4871 SdHoareTripleChecker+Invalid, 1582 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 718 IncrementalHoareTripleChecker+Valid, 861 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.4s IncrementalHoareTripleChecker+Time [2022-11-22 02:23:40,592 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2481 Valid, 4871 Invalid, 1582 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [718 Valid, 861 Invalid, 3 Unknown, 0 Unchecked, 18.4s Time] [2022-11-22 02:23:40,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7475 states. [2022-11-22 02:23:41,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7475 to 7311. [2022-11-22 02:23:41,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7311 states, 4364 states have (on average 1.2351054078826764) internal successors, (5390), 4527 states have internal predecessors, (5390), 1995 states have call successors, (1995), 924 states have call predecessors, (1995), 932 states have return successors, (2047), 1955 states have call predecessors, (2047), 1991 states have call successors, (2047) [2022-11-22 02:23:41,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7311 states to 7311 states and 9432 transitions. [2022-11-22 02:23:41,535 INFO L78 Accepts]: Start accepts. Automaton has 7311 states and 9432 transitions. Word has length 182 [2022-11-22 02:23:41,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:23:41,535 INFO L495 AbstractCegarLoop]: Abstraction has 7311 states and 9432 transitions. [2022-11-22 02:23:41,536 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 5 states have internal predecessors, (77), 3 states have call successors, (30), 3 states have call predecessors, (30), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2022-11-22 02:23:41,536 INFO L276 IsEmpty]: Start isEmpty. Operand 7311 states and 9432 transitions. [2022-11-22 02:23:41,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2022-11-22 02:23:41,538 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:23:41,538 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 5, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:23:41,538 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-11-22 02:23:41,538 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-11-22 02:23:41,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:23:41,539 INFO L85 PathProgramCache]: Analyzing trace with hash -867414004, now seen corresponding path program 1 times [2022-11-22 02:23:41,539 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:23:41,539 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [857880323] [2022-11-22 02:23:41,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:23:41,539 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:23:41,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:23:42,241 INFO L134 CoverageAnalysis]: Checked inductivity of 257 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 255 trivial. 0 not checked. [2022-11-22 02:23:42,242 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:23:42,242 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [857880323] [2022-11-22 02:23:42,242 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [857880323] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:23:42,242 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:23:42,242 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-22 02:23:42,242 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [659189127] [2022-11-22 02:23:42,243 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:23:42,243 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 02:23:42,243 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:23:42,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 02:23:42,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-22 02:23:42,244 INFO L87 Difference]: Start difference. First operand 7311 states and 9432 transitions. Second operand has 5 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 2 states have call successors, (33), 3 states have call predecessors, (33), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2022-11-22 02:23:45,366 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.97s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:23:47,266 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.90s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:23:49,295 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:23:51,311 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:23:55,825 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:23:58,254 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.79s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:24:01,735 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:24:03,739 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:24:05,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:24:05,398 INFO L93 Difference]: Finished difference Result 7319 states and 9436 transitions. [2022-11-22 02:24:05,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-22 02:24:05,398 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 2 states have call successors, (33), 3 states have call predecessors, (33), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) Word has length 198 [2022-11-22 02:24:05,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:24:05,416 INFO L225 Difference]: With dead ends: 7319 [2022-11-22 02:24:05,416 INFO L226 Difference]: Without dead ends: 7317 [2022-11-22 02:24:05,420 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-22 02:24:05,420 INFO L413 NwaCegarLoop]: 1436 mSDtfsCounter, 125 mSDsluCounter, 4241 mSDsCounter, 0 mSdLazyCounter, 1035 mSolverCounterSat, 0 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 5677 SdHoareTripleChecker+Invalid, 1040 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1035 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22.0s IncrementalHoareTripleChecker+Time [2022-11-22 02:24:05,421 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [126 Valid, 5677 Invalid, 1040 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1035 Invalid, 5 Unknown, 0 Unchecked, 22.0s Time] [2022-11-22 02:24:05,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7317 states. [2022-11-22 02:24:06,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7317 to 7309. [2022-11-22 02:24:06,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7309 states, 4363 states have (on average 1.2335548934219573) internal successors, (5382), 4525 states have internal predecessors, (5382), 1995 states have call successors, (1995), 924 states have call predecessors, (1995), 932 states have return successors, (2047), 1955 states have call predecessors, (2047), 1991 states have call successors, (2047) [2022-11-22 02:24:06,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7309 states to 7309 states and 9424 transitions. [2022-11-22 02:24:06,441 INFO L78 Accepts]: Start accepts. Automaton has 7309 states and 9424 transitions. Word has length 198 [2022-11-22 02:24:06,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:24:06,442 INFO L495 AbstractCegarLoop]: Abstraction has 7309 states and 9424 transitions. [2022-11-22 02:24:06,442 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 2 states have call successors, (33), 3 states have call predecessors, (33), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2022-11-22 02:24:06,442 INFO L276 IsEmpty]: Start isEmpty. Operand 7309 states and 9424 transitions. [2022-11-22 02:24:06,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 249 [2022-11-22 02:24:06,447 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:24:06,447 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:24:06,447 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-11-22 02:24:06,447 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting ldv_linux_block_genhd_del_gendiskErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-11-22 02:24:06,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:24:06,448 INFO L85 PathProgramCache]: Analyzing trace with hash 1636318439, now seen corresponding path program 1 times [2022-11-22 02:24:06,448 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:24:06,448 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1766261069] [2022-11-22 02:24:06,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:24:06,449 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:24:06,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:24:07,269 INFO L134 CoverageAnalysis]: Checked inductivity of 419 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 419 trivial. 0 not checked. [2022-11-22 02:24:07,269 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:24:07,269 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1766261069] [2022-11-22 02:24:07,270 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1766261069] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:24:07,270 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:24:07,270 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-22 02:24:07,270 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1983722740] [2022-11-22 02:24:07,270 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:24:07,271 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-22 02:24:07,271 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:24:07,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-22 02:24:07,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-22 02:24:07,272 INFO L87 Difference]: Start difference. First operand 7309 states and 9424 transitions. Second operand has 7 states, 6 states have (on average 14.166666666666666) internal successors, (85), 5 states have internal predecessors, (85), 2 states have call successors, (44), 2 states have call predecessors, (44), 3 states have return successors, (42), 4 states have call predecessors, (42), 2 states have call successors, (42) [2022-11-22 02:24:10,795 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:24:15,904 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:24:23,196 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:24:25,201 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:24:27,212 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:24:28,753 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.54s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:24:30,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:24:30,558 INFO L93 Difference]: Finished difference Result 9072 states and 11570 transitions. [2022-11-22 02:24:30,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-22 02:24:30,558 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 14.166666666666666) internal successors, (85), 5 states have internal predecessors, (85), 2 states have call successors, (44), 2 states have call predecessors, (44), 3 states have return successors, (42), 4 states have call predecessors, (42), 2 states have call successors, (42) Word has length 248 [2022-11-22 02:24:30,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:24:30,574 INFO L225 Difference]: With dead ends: 9072 [2022-11-22 02:24:30,574 INFO L226 Difference]: Without dead ends: 7634 [2022-11-22 02:24:30,578 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-22 02:24:30,578 INFO L413 NwaCegarLoop]: 1494 mSDtfsCounter, 37 mSDsluCounter, 7394 mSDsCounter, 0 mSdLazyCounter, 1609 mSolverCounterSat, 0 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 8888 SdHoareTripleChecker+Invalid, 1614 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1609 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.9s IncrementalHoareTripleChecker+Time [2022-11-22 02:24:30,579 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 8888 Invalid, 1614 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1609 Invalid, 5 Unknown, 0 Unchecked, 21.9s Time] [2022-11-22 02:24:30,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7634 states. [2022-11-22 02:24:31,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7634 to 7339. [2022-11-22 02:24:31,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7339 states, 4383 states have (on average 1.2324891626739676) internal successors, (5402), 4545 states have internal predecessors, (5402), 1995 states have call successors, (1995), 924 states have call predecessors, (1995), 942 states have return successors, (2057), 1965 states have call predecessors, (2057), 1991 states have call successors, (2057) [2022-11-22 02:24:31,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7339 states to 7339 states and 9454 transitions. [2022-11-22 02:24:31,589 INFO L78 Accepts]: Start accepts. Automaton has 7339 states and 9454 transitions. Word has length 248 [2022-11-22 02:24:31,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:24:31,590 INFO L495 AbstractCegarLoop]: Abstraction has 7339 states and 9454 transitions. [2022-11-22 02:24:31,590 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 14.166666666666666) internal successors, (85), 5 states have internal predecessors, (85), 2 states have call successors, (44), 2 states have call predecessors, (44), 3 states have return successors, (42), 4 states have call predecessors, (42), 2 states have call successors, (42) [2022-11-22 02:24:31,590 INFO L276 IsEmpty]: Start isEmpty. Operand 7339 states and 9454 transitions. [2022-11-22 02:24:31,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2022-11-22 02:24:31,594 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:24:31,595 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 6, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:24:31,595 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-11-22 02:24:31,595 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-11-22 02:24:31,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:24:31,595 INFO L85 PathProgramCache]: Analyzing trace with hash -579978320, now seen corresponding path program 1 times [2022-11-22 02:24:31,596 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:24:31,596 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [806176172] [2022-11-22 02:24:31,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:24:31,596 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:24:31,799 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-22 02:24:31,799 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1708241843] [2022-11-22 02:24:31,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:24:31,799 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 02:24:31,800 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_008eb9d7-1945-4032-b8a1-eda75cf95201/bin/utaipan-g80aRyZoba/z3 [2022-11-22 02:24:31,803 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_008eb9d7-1945-4032-b8a1-eda75cf95201/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 02:24:31,810 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_008eb9d7-1945-4032-b8a1-eda75cf95201/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-22 02:24:35,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:24:35,754 INFO L263 TraceCheckSpWp]: Trace formula consists of 4109 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-22 02:24:35,768 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 02:24:35,872 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 38 proven. 1 refuted. 0 times theorem prover too weak. 225 trivial. 0 not checked. [2022-11-22 02:24:35,872 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 02:24:36,258 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 263 trivial. 0 not checked. [2022-11-22 02:24:36,259 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:24:36,259 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [806176172] [2022-11-22 02:24:36,259 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-22 02:24:36,259 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1708241843] [2022-11-22 02:24:36,260 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1708241843] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 02:24:36,260 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1539127424] [2022-11-22 02:24:36,293 INFO L159 IcfgInterpreter]: Started Sifa with 151 locations of interest [2022-11-22 02:24:36,294 INFO L166 IcfgInterpreter]: Building call graph [2022-11-22 02:24:36,298 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-22 02:24:36,304 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-22 02:24:36,305 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-22 02:24:38,938 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 44 select indices, 44 select index equivalence classes, 990 disjoint index pairs (out of 946 index pairs), introduced 44 new quantified variables, introduced 0 case distinctions, treesize of input 1460 treesize of output 1277 [2022-11-22 02:24:40,130 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:24:40,136 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:24:40,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:24:40,148 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:24:40,154 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:24:40,159 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:24:40,164 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:24:40,170 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:24:40,175 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:24:40,180 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:24:40,186 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:24:40,191 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:24:40,198 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:24:40,474 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 31 select indices, 31 select index equivalence classes, 173 disjoint index pairs (out of 465 index pairs), introduced 31 new quantified variables, introduced 0 case distinctions, treesize of input 308 treesize of output 386 [2022-11-22 02:24:40,762 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:24:40,768 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:24:40,774 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:24:40,779 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:24:40,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:24:40,789 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:24:40,794 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:24:40,799 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:24:40,805 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:24:40,810 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:24:40,815 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:24:40,820 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:24:41,043 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 31 select indices, 31 select index equivalence classes, 172 disjoint index pairs (out of 465 index pairs), introduced 31 new quantified variables, introduced 0 case distinctions, treesize of input 305 treesize of output 379 [2022-11-22 02:24:41,330 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:24:41,334 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:24:41,338 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:24:41,343 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:24:41,348 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:24:41,352 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:24:41,357 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:24:41,362 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:24:41,366 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:24:41,370 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:24:41,374 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:24:41,377 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:24:41,590 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 31 select indices, 31 select index equivalence classes, 173 disjoint index pairs (out of 465 index pairs), introduced 31 new quantified variables, introduced 0 case distinctions, treesize of input 310 treesize of output 388 [2022-11-22 02:24:42,113 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:24:42,118 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:24:42,124 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:24:42,129 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:24:42,134 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:24:42,140 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:24:42,145 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:24:42,150 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:24:42,154 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:24:42,159 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:24:42,164 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:24:42,169 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:24:42,176 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:24:42,466 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 31 select indices, 31 select index equivalence classes, 173 disjoint index pairs (out of 465 index pairs), introduced 31 new quantified variables, introduced 0 case distinctions, treesize of input 300 treesize of output 378 [2022-11-22 02:24:42,764 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:24:42,768 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:24:42,771 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:24:42,775 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:24:42,779 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:24:42,782 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:24:42,786 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:24:42,790 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:24:42,793 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:24:42,797 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:24:42,800 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:24:42,804 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:24:43,017 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 31 select indices, 31 select index equivalence classes, 173 disjoint index pairs (out of 465 index pairs), introduced 31 new quantified variables, introduced 0 case distinctions, treesize of input 302 treesize of output 380 [2022-11-22 02:24:43,201 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:24:43,205 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:24:43,208 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:24:43,212 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:24:43,216 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:24:43,219 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:24:43,223 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:24:43,227 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:24:43,231 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:24:43,234 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:24:43,238 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:24:43,241 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:24:43,444 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 31 select indices, 31 select index equivalence classes, 172 disjoint index pairs (out of 465 index pairs), introduced 31 new quantified variables, introduced 0 case distinctions, treesize of input 297 treesize of output 371 [2022-11-22 02:25:40,085 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 02:25:40,096 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 02:25:53,740 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:25:53,749 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:25:53,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:25:53,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:25:53,763 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:25:53,766 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:25:53,775 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:25:53,778 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:25:53,782 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:25:53,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:25:53,788 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:25:53,792 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:25:53,795 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:25:53,798 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:25:53,802 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:25:53,805 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:25:53,808 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:25:53,812 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:25:53,815 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:25:53,825 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:25:53,829 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:25:53,833 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:25:53,836 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:25:53,840 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:25:53,844 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:25:53,848 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:25:53,851 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:25:53,855 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:25:53,859 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:25:53,863 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:25:53,867 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:25:53,871 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:25:53,874 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:25:53,878 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:25:53,881 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:25:53,885 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:25:53,889 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:25:53,893 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:25:53,894 INFO L217 Elim1Store]: Index analysis took 157 ms [2022-11-22 02:25:53,899 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:25:53,903 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:25:53,907 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:25:53,910 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:25:53,913 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:25:53,916 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:25:53,920 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:25:53,923 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:25:53,926 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:25:53,930 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:25:53,933 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:25:53,936 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:25:53,939 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:25:53,943 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:25:53,946 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:25:53,949 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:25:53,952 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:25:53,956 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:25:53,959 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:25:53,962 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:25:53,965 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:25:53,968 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:25:53,971 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:25:53,974 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:25:53,977 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:25:53,980 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:25:53,983 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:25:53,986 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:25:53,989 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:25:53,992 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:25:53,995 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:25:53,998 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:25:54,001 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:25:54,004 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:25:54,006 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:25:54,009 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:25:54,013 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:25:54,016 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:25:54,019 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:25:54,023 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:25:54,169 INFO L321 Elim1Store]: treesize reduction 28, result has 40.4 percent of original size [2022-11-22 02:25:54,170 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 55 select indices, 55 select index equivalence classes, 466 disjoint index pairs (out of 1485 index pairs), introduced 55 new quantified variables, introduced 2 case distinctions, treesize of input 511 treesize of output 676 [2022-11-22 02:25:54,582 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:25:54,590 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:25:54,594 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:25:54,602 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:25:54,606 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:25:54,609 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:25:54,617 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:25:54,621 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:25:54,624 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:25:54,628 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:25:54,631 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:25:54,635 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:25:54,638 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:25:54,641 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:25:54,645 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:25:54,648 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:25:54,651 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:25:54,655 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:25:54,658 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:25:54,667 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:25:54,671 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:25:54,675 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:25:54,678 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:25:54,682 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:25:54,685 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:25:54,688 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:25:54,692 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:25:54,695 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:25:54,699 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:25:54,702 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:25:54,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:25:54,709 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:25:54,712 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:25:54,715 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:25:54,719 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:25:54,722 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:25:54,726 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:25:54,729 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:25:54,731 INFO L217 Elim1Store]: Index analysis took 152 ms [2022-11-22 02:25:54,737 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:25:54,742 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:25:54,746 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:25:54,750 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:25:54,754 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:25:54,758 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:25:54,763 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:25:54,767 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:25:54,771 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:25:54,775 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:25:54,779 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:25:54,783 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:25:54,787 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:25:54,790 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:25:54,794 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:25:54,797 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:25:54,801 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:25:54,804 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:25:54,807 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:25:54,811 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:25:54,814 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:25:54,819 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:25:54,823 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:25:54,827 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:25:54,831 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:25:54,835 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:25:54,838 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:25:54,842 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:25:54,845 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:25:54,848 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:25:54,852 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:25:54,855 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:25:54,858 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:25:54,861 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:25:54,863 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:25:54,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:25:54,869 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:25:54,873 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:25:54,876 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:25:54,880 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:25:55,015 INFO L321 Elim1Store]: treesize reduction 24, result has 48.9 percent of original size [2022-11-22 02:25:55,015 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 55 select indices, 55 select index equivalence classes, 466 disjoint index pairs (out of 1485 index pairs), introduced 55 new quantified variables, introduced 2 case distinctions, treesize of input 503 treesize of output 672 [2022-11-22 02:25:55,415 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:25:55,423 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:25:55,427 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:25:55,430 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:25:55,433 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:25:55,436 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:25:55,439 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:25:55,442 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:25:55,446 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:25:55,449 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:25:55,452 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:25:55,455 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:25:55,459 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:25:55,462 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:25:55,465 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:25:55,469 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:25:55,472 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:25:55,475 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:25:55,479 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:25:55,482 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:25:55,485 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:25:55,488 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:25:55,492 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:25:55,495 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:25:55,498 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:25:55,502 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:25:55,505 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:25:55,508 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:25:55,512 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:25:55,520 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:25:55,523 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:25:55,526 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:25:55,529 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:25:55,532 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:25:55,536 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:25:55,539 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:25:55,542 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:25:55,545 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:25:55,548 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:25:55,551 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:25:55,555 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:25:55,558 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:25:55,561 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:25:55,564 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:25:55,567 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:25:55,799 INFO L217 Elim1Store]: Index analysis took 387 ms [2022-11-22 02:26:03,662 WARN L233 SmtUtils]: Spent 7.85s on a formula simplification. DAG size of input: 514 DAG size of output: 418 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-22 02:26:03,665 INFO L321 Elim1Store]: treesize reduction 782, result has 50.0 percent of original size [2022-11-22 02:26:03,667 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 47 select indices, 47 select index equivalence classes, 1035 disjoint index pairs (out of 1081 index pairs), introduced 47 new quantified variables, introduced 92 case distinctions, treesize of input 1483 treesize of output 1856 [2022-11-22 02:26:10,158 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-22 02:26:13,228 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-22 02:26:15,807 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:26:15,828 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 34 [2022-11-22 02:26:18,141 WARN L207 Elim1Store]: Array PQE input equivalent to false