./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--skd.ko.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 53f42b1a Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_479fef81-d573-407e-9eaa-f8c3278a1388/bin/utaipan-TEXQjIfE4P/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_479fef81-d573-407e-9eaa-f8c3278a1388/bin/utaipan-TEXQjIfE4P/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_479fef81-d573-407e-9eaa-f8c3278a1388/bin/utaipan-TEXQjIfE4P/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_479fef81-d573-407e-9eaa-f8c3278a1388/bin/utaipan-TEXQjIfE4P/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_479fef81-d573-407e-9eaa-f8c3278a1388/bin/utaipan-TEXQjIfE4P/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_479fef81-d573-407e-9eaa-f8c3278a1388/bin/utaipan-TEXQjIfE4P --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 b20f48966671566afed85875d0d94a6951898c9c2a2bdf71b35576aeaa27c268 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-21 01:40:48,991 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-21 01:40:48,994 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-21 01:40:49,044 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-21 01:40:49,045 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-21 01:40:49,049 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-21 01:40:49,052 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-21 01:40:49,056 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-21 01:40:49,058 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-21 01:40:49,066 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-21 01:40:49,067 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-21 01:40:49,069 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-21 01:40:49,069 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-21 01:40:49,072 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-21 01:40:49,075 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-21 01:40:49,081 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-21 01:40:49,082 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-21 01:40:49,084 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-21 01:40:49,089 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-21 01:40:49,095 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-21 01:40:49,098 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-21 01:40:49,099 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-21 01:40:49,102 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-21 01:40:49,103 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-21 01:40:49,115 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-21 01:40:49,116 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-21 01:40:49,116 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-21 01:40:49,117 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-21 01:40:49,119 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-21 01:40:49,121 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-21 01:40:49,122 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-21 01:40:49,123 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-21 01:40:49,125 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-21 01:40:49,126 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-21 01:40:49,127 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-21 01:40:49,127 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-21 01:40:49,128 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-21 01:40:49,128 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-21 01:40:49,128 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-21 01:40:49,130 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-21 01:40:49,130 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-21 01:40:49,131 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_479fef81-d573-407e-9eaa-f8c3278a1388/bin/utaipan-TEXQjIfE4P/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-21 01:40:49,177 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-21 01:40:49,178 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-21 01:40:49,178 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-21 01:40:49,179 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-21 01:40:49,186 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-21 01:40:49,186 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-21 01:40:49,186 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-21 01:40:49,187 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-21 01:40:49,187 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-21 01:40:49,187 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-21 01:40:49,188 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-21 01:40:49,188 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-21 01:40:49,189 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-21 01:40:49,189 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-21 01:40:49,189 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-21 01:40:49,189 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-21 01:40:49,190 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-21 01:40:49,190 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-21 01:40:49,191 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-21 01:40:49,191 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-21 01:40:49,192 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-21 01:40:49,192 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-21 01:40:49,192 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-21 01:40:49,192 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-21 01:40:49,192 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-21 01:40:49,193 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-21 01:40:49,194 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-21 01:40:49,195 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-21 01:40:49,195 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-21 01:40:49,195 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-21 01:40:49,195 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-21 01:40:49,196 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-21 01:40:49,196 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-21 01:40:49,196 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-21 01:40:49,196 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-21 01:40:49,197 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-21 01:40:49,197 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-21 01:40:49,197 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-21 01:40:49,197 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_479fef81-d573-407e-9eaa-f8c3278a1388/bin/utaipan-TEXQjIfE4P/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_479fef81-d573-407e-9eaa-f8c3278a1388/bin/utaipan-TEXQjIfE4P Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b20f48966671566afed85875d0d94a6951898c9c2a2bdf71b35576aeaa27c268 [2021-11-21 01:40:49,456 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-21 01:40:49,488 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-21 01:40:49,492 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-21 01:40:49,493 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-21 01:40:49,494 INFO L275 PluginConnector]: CDTParser initialized [2021-11-21 01:40:49,495 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_479fef81-d573-407e-9eaa-f8c3278a1388/bin/utaipan-TEXQjIfE4P/../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i [2021-11-21 01:40:49,564 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_479fef81-d573-407e-9eaa-f8c3278a1388/bin/utaipan-TEXQjIfE4P/data/7a864c6e8/879860704a814fde92e7de7ef924cb67/FLAG00ab0594c [2021-11-21 01:40:50,690 INFO L306 CDTParser]: Found 1 translation units. [2021-11-21 01:40:50,691 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_479fef81-d573-407e-9eaa-f8c3278a1388/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i [2021-11-21 01:40:50,764 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_479fef81-d573-407e-9eaa-f8c3278a1388/bin/utaipan-TEXQjIfE4P/data/7a864c6e8/879860704a814fde92e7de7ef924cb67/FLAG00ab0594c [2021-11-21 01:40:51,014 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_479fef81-d573-407e-9eaa-f8c3278a1388/bin/utaipan-TEXQjIfE4P/data/7a864c6e8/879860704a814fde92e7de7ef924cb67 [2021-11-21 01:40:51,016 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-21 01:40:51,018 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-21 01:40:51,019 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-21 01:40:51,019 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-21 01:40:51,023 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-21 01:40:51,024 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 01:40:51" (1/1) ... [2021-11-21 01:40:51,025 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b720865 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:40:51, skipping insertion in model container [2021-11-21 01:40:51,025 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 01:40:51" (1/1) ... [2021-11-21 01:40:51,032 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-21 01:40:51,226 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-21 01:40:57,368 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_479fef81-d573-407e-9eaa-f8c3278a1388/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[580060,580073] [2021-11-21 01:40:57,371 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_479fef81-d573-407e-9eaa-f8c3278a1388/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[580205,580218] [2021-11-21 01:40:57,372 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_479fef81-d573-407e-9eaa-f8c3278a1388/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[580351,580364] [2021-11-21 01:40:57,372 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_479fef81-d573-407e-9eaa-f8c3278a1388/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[580516,580529] [2021-11-21 01:40:57,373 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_479fef81-d573-407e-9eaa-f8c3278a1388/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[580674,580687] [2021-11-21 01:40:57,374 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_479fef81-d573-407e-9eaa-f8c3278a1388/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[580832,580845] [2021-11-21 01:40:57,375 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_479fef81-d573-407e-9eaa-f8c3278a1388/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[580990,581003] [2021-11-21 01:40:57,376 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_479fef81-d573-407e-9eaa-f8c3278a1388/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[581150,581163] [2021-11-21 01:40:57,377 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_479fef81-d573-407e-9eaa-f8c3278a1388/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[581309,581322] [2021-11-21 01:40:57,378 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_479fef81-d573-407e-9eaa-f8c3278a1388/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[581448,581461] [2021-11-21 01:40:57,379 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_479fef81-d573-407e-9eaa-f8c3278a1388/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[581590,581603] [2021-11-21 01:40:57,379 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_479fef81-d573-407e-9eaa-f8c3278a1388/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[581739,581752] [2021-11-21 01:40:57,380 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_479fef81-d573-407e-9eaa-f8c3278a1388/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[581878,581891] [2021-11-21 01:40:57,386 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_479fef81-d573-407e-9eaa-f8c3278a1388/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[582033,582046] [2021-11-21 01:40:57,387 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_479fef81-d573-407e-9eaa-f8c3278a1388/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[582193,582206] [2021-11-21 01:40:57,387 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_479fef81-d573-407e-9eaa-f8c3278a1388/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[582344,582357] [2021-11-21 01:40:57,391 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_479fef81-d573-407e-9eaa-f8c3278a1388/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[582495,582508] [2021-11-21 01:40:57,392 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_479fef81-d573-407e-9eaa-f8c3278a1388/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[582647,582660] [2021-11-21 01:40:57,394 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_479fef81-d573-407e-9eaa-f8c3278a1388/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[582796,582809] [2021-11-21 01:40:57,394 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_479fef81-d573-407e-9eaa-f8c3278a1388/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[582944,582957] [2021-11-21 01:40:57,395 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_479fef81-d573-407e-9eaa-f8c3278a1388/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[583101,583114] [2021-11-21 01:40:57,397 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_479fef81-d573-407e-9eaa-f8c3278a1388/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[583250,583263] [2021-11-21 01:40:57,398 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_479fef81-d573-407e-9eaa-f8c3278a1388/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[583406,583419] [2021-11-21 01:40:57,399 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_479fef81-d573-407e-9eaa-f8c3278a1388/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[583559,583572] [2021-11-21 01:40:57,400 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_479fef81-d573-407e-9eaa-f8c3278a1388/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[583705,583718] [2021-11-21 01:40:57,400 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_479fef81-d573-407e-9eaa-f8c3278a1388/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[583848,583861] [2021-11-21 01:40:57,401 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_479fef81-d573-407e-9eaa-f8c3278a1388/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[584000,584013] [2021-11-21 01:40:57,402 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_479fef81-d573-407e-9eaa-f8c3278a1388/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[584146,584159] [2021-11-21 01:40:57,402 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_479fef81-d573-407e-9eaa-f8c3278a1388/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[584291,584304] [2021-11-21 01:40:57,404 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_479fef81-d573-407e-9eaa-f8c3278a1388/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[584445,584458] [2021-11-21 01:40:57,404 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_479fef81-d573-407e-9eaa-f8c3278a1388/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[584596,584609] [2021-11-21 01:40:57,404 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_479fef81-d573-407e-9eaa-f8c3278a1388/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[584751,584764] [2021-11-21 01:40:57,405 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_479fef81-d573-407e-9eaa-f8c3278a1388/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[584903,584916] [2021-11-21 01:40:57,405 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_479fef81-d573-407e-9eaa-f8c3278a1388/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[585058,585071] [2021-11-21 01:40:57,406 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_479fef81-d573-407e-9eaa-f8c3278a1388/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[585222,585235] [2021-11-21 01:40:57,406 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_479fef81-d573-407e-9eaa-f8c3278a1388/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[585378,585391] [2021-11-21 01:40:57,407 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_479fef81-d573-407e-9eaa-f8c3278a1388/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[585542,585555] [2021-11-21 01:40:57,407 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_479fef81-d573-407e-9eaa-f8c3278a1388/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[585684,585697] [2021-11-21 01:40:57,408 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_479fef81-d573-407e-9eaa-f8c3278a1388/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[585842,585855] [2021-11-21 01:40:57,408 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_479fef81-d573-407e-9eaa-f8c3278a1388/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[586009,586022] [2021-11-21 01:40:57,409 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_479fef81-d573-407e-9eaa-f8c3278a1388/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[586168,586181] [2021-11-21 01:40:57,409 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_479fef81-d573-407e-9eaa-f8c3278a1388/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[586327,586340] [2021-11-21 01:40:57,410 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_479fef81-d573-407e-9eaa-f8c3278a1388/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[586476,586489] [2021-11-21 01:40:57,412 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_479fef81-d573-407e-9eaa-f8c3278a1388/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[586623,586636] [2021-11-21 01:40:57,412 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_479fef81-d573-407e-9eaa-f8c3278a1388/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[586762,586775] [2021-11-21 01:40:57,412 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_479fef81-d573-407e-9eaa-f8c3278a1388/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[586925,586938] [2021-11-21 01:40:57,413 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_479fef81-d573-407e-9eaa-f8c3278a1388/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[587091,587104] [2021-11-21 01:40:57,414 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_479fef81-d573-407e-9eaa-f8c3278a1388/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[587255,587268] [2021-11-21 01:40:57,415 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_479fef81-d573-407e-9eaa-f8c3278a1388/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[587420,587433] [2021-11-21 01:40:57,415 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_479fef81-d573-407e-9eaa-f8c3278a1388/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[587585,587598] [2021-11-21 01:40:57,416 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_479fef81-d573-407e-9eaa-f8c3278a1388/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[587751,587764] [2021-11-21 01:40:57,416 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_479fef81-d573-407e-9eaa-f8c3278a1388/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[587916,587929] [2021-11-21 01:40:57,416 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_479fef81-d573-407e-9eaa-f8c3278a1388/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[588083,588096] [2021-11-21 01:40:57,417 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_479fef81-d573-407e-9eaa-f8c3278a1388/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[588243,588256] [2021-11-21 01:40:57,418 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_479fef81-d573-407e-9eaa-f8c3278a1388/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[588405,588418] [2021-11-21 01:40:57,419 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_479fef81-d573-407e-9eaa-f8c3278a1388/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[588564,588577] [2021-11-21 01:40:57,419 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_479fef81-d573-407e-9eaa-f8c3278a1388/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[588710,588723] [2021-11-21 01:40:57,420 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_479fef81-d573-407e-9eaa-f8c3278a1388/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[588853,588866] [2021-11-21 01:40:57,420 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_479fef81-d573-407e-9eaa-f8c3278a1388/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[588997,589010] [2021-11-21 01:40:57,421 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_479fef81-d573-407e-9eaa-f8c3278a1388/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[589140,589153] [2021-11-21 01:40:57,421 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_479fef81-d573-407e-9eaa-f8c3278a1388/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[589284,589297] [2021-11-21 01:40:57,422 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_479fef81-d573-407e-9eaa-f8c3278a1388/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[589425,589438] [2021-11-21 01:40:57,422 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_479fef81-d573-407e-9eaa-f8c3278a1388/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[589563,589576] [2021-11-21 01:40:57,423 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_479fef81-d573-407e-9eaa-f8c3278a1388/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[589721,589734] [2021-11-21 01:40:57,423 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_479fef81-d573-407e-9eaa-f8c3278a1388/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[589880,589893] [2021-11-21 01:40:57,424 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_479fef81-d573-407e-9eaa-f8c3278a1388/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[590036,590049] [2021-11-21 01:40:57,424 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_479fef81-d573-407e-9eaa-f8c3278a1388/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[590185,590198] [2021-11-21 01:40:57,425 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_479fef81-d573-407e-9eaa-f8c3278a1388/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[590337,590350] [2021-11-21 01:40:57,425 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_479fef81-d573-407e-9eaa-f8c3278a1388/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[590488,590501] [2021-11-21 01:40:57,426 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_479fef81-d573-407e-9eaa-f8c3278a1388/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[590637,590650] [2021-11-21 01:40:57,426 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_479fef81-d573-407e-9eaa-f8c3278a1388/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[590789,590802] [2021-11-21 01:40:57,427 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_479fef81-d573-407e-9eaa-f8c3278a1388/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[590937,590950] [2021-11-21 01:40:57,428 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_479fef81-d573-407e-9eaa-f8c3278a1388/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[591090,591103] [2021-11-21 01:40:57,428 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_479fef81-d573-407e-9eaa-f8c3278a1388/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[591241,591254] [2021-11-21 01:40:57,429 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_479fef81-d573-407e-9eaa-f8c3278a1388/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[591391,591404] [2021-11-21 01:40:57,429 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_479fef81-d573-407e-9eaa-f8c3278a1388/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[591538,591551] [2021-11-21 01:40:57,429 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_479fef81-d573-407e-9eaa-f8c3278a1388/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[591689,591702] [2021-11-21 01:40:57,430 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_479fef81-d573-407e-9eaa-f8c3278a1388/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[591840,591853] [2021-11-21 01:40:57,430 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_479fef81-d573-407e-9eaa-f8c3278a1388/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[591988,592001] [2021-11-21 01:40:57,431 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_479fef81-d573-407e-9eaa-f8c3278a1388/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[592154,592167] [2021-11-21 01:40:57,431 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_479fef81-d573-407e-9eaa-f8c3278a1388/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[592323,592336] [2021-11-21 01:40:57,432 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_479fef81-d573-407e-9eaa-f8c3278a1388/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[592490,592503] [2021-11-21 01:40:57,432 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_479fef81-d573-407e-9eaa-f8c3278a1388/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[592658,592671] [2021-11-21 01:40:57,433 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_479fef81-d573-407e-9eaa-f8c3278a1388/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[592808,592821] [2021-11-21 01:40:57,434 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_479fef81-d573-407e-9eaa-f8c3278a1388/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[592955,592968] [2021-11-21 01:40:57,434 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_479fef81-d573-407e-9eaa-f8c3278a1388/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[593116,593129] [2021-11-21 01:40:57,435 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_479fef81-d573-407e-9eaa-f8c3278a1388/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[593286,593299] [2021-11-21 01:40:57,435 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_479fef81-d573-407e-9eaa-f8c3278a1388/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[593448,593461] [2021-11-21 01:40:57,457 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 01:40:57,505 INFO L203 MainTranslator]: Completed pre-run [2021-11-21 01:40:58,124 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_479fef81-d573-407e-9eaa-f8c3278a1388/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[580060,580073] [2021-11-21 01:40:58,126 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_479fef81-d573-407e-9eaa-f8c3278a1388/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[580205,580218] [2021-11-21 01:40:58,131 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_479fef81-d573-407e-9eaa-f8c3278a1388/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[580351,580364] [2021-11-21 01:40:58,132 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_479fef81-d573-407e-9eaa-f8c3278a1388/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[580516,580529] [2021-11-21 01:40:58,132 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_479fef81-d573-407e-9eaa-f8c3278a1388/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[580674,580687] [2021-11-21 01:40:58,132 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_479fef81-d573-407e-9eaa-f8c3278a1388/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[580832,580845] [2021-11-21 01:40:58,137 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_479fef81-d573-407e-9eaa-f8c3278a1388/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[580990,581003] [2021-11-21 01:40:58,138 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_479fef81-d573-407e-9eaa-f8c3278a1388/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[581150,581163] [2021-11-21 01:40:58,138 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_479fef81-d573-407e-9eaa-f8c3278a1388/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[581309,581322] [2021-11-21 01:40:58,138 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_479fef81-d573-407e-9eaa-f8c3278a1388/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[581448,581461] [2021-11-21 01:40:58,139 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_479fef81-d573-407e-9eaa-f8c3278a1388/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[581590,581603] [2021-11-21 01:40:58,140 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_479fef81-d573-407e-9eaa-f8c3278a1388/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[581739,581752] [2021-11-21 01:40:58,141 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_479fef81-d573-407e-9eaa-f8c3278a1388/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[581878,581891] [2021-11-21 01:40:58,141 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_479fef81-d573-407e-9eaa-f8c3278a1388/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[582033,582046] [2021-11-21 01:40:58,141 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_479fef81-d573-407e-9eaa-f8c3278a1388/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[582193,582206] [2021-11-21 01:40:58,142 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_479fef81-d573-407e-9eaa-f8c3278a1388/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[582344,582357] [2021-11-21 01:40:58,143 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_479fef81-d573-407e-9eaa-f8c3278a1388/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[582495,582508] [2021-11-21 01:40:58,143 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_479fef81-d573-407e-9eaa-f8c3278a1388/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[582647,582660] [2021-11-21 01:40:58,143 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_479fef81-d573-407e-9eaa-f8c3278a1388/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[582796,582809] [2021-11-21 01:40:58,144 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_479fef81-d573-407e-9eaa-f8c3278a1388/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[582944,582957] [2021-11-21 01:40:58,144 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_479fef81-d573-407e-9eaa-f8c3278a1388/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[583101,583114] [2021-11-21 01:40:58,144 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_479fef81-d573-407e-9eaa-f8c3278a1388/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[583250,583263] [2021-11-21 01:40:58,145 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_479fef81-d573-407e-9eaa-f8c3278a1388/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[583406,583419] [2021-11-21 01:40:58,146 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_479fef81-d573-407e-9eaa-f8c3278a1388/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[583559,583572] [2021-11-21 01:40:58,146 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_479fef81-d573-407e-9eaa-f8c3278a1388/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[583705,583718] [2021-11-21 01:40:58,147 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_479fef81-d573-407e-9eaa-f8c3278a1388/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[583848,583861] [2021-11-21 01:40:58,147 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_479fef81-d573-407e-9eaa-f8c3278a1388/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[584000,584013] [2021-11-21 01:40:58,148 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_479fef81-d573-407e-9eaa-f8c3278a1388/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[584146,584159] [2021-11-21 01:40:58,148 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_479fef81-d573-407e-9eaa-f8c3278a1388/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[584291,584304] [2021-11-21 01:40:58,149 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_479fef81-d573-407e-9eaa-f8c3278a1388/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[584445,584458] [2021-11-21 01:40:58,149 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_479fef81-d573-407e-9eaa-f8c3278a1388/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[584596,584609] [2021-11-21 01:40:58,149 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_479fef81-d573-407e-9eaa-f8c3278a1388/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[584751,584764] [2021-11-21 01:40:58,150 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_479fef81-d573-407e-9eaa-f8c3278a1388/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[584903,584916] [2021-11-21 01:40:58,151 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_479fef81-d573-407e-9eaa-f8c3278a1388/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[585058,585071] [2021-11-21 01:40:58,151 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_479fef81-d573-407e-9eaa-f8c3278a1388/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[585222,585235] [2021-11-21 01:40:58,152 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_479fef81-d573-407e-9eaa-f8c3278a1388/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[585378,585391] [2021-11-21 01:40:58,152 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_479fef81-d573-407e-9eaa-f8c3278a1388/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[585542,585555] [2021-11-21 01:40:58,153 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_479fef81-d573-407e-9eaa-f8c3278a1388/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[585684,585697] [2021-11-21 01:40:58,153 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_479fef81-d573-407e-9eaa-f8c3278a1388/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[585842,585855] [2021-11-21 01:40:58,154 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_479fef81-d573-407e-9eaa-f8c3278a1388/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[586009,586022] [2021-11-21 01:40:58,155 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_479fef81-d573-407e-9eaa-f8c3278a1388/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[586168,586181] [2021-11-21 01:40:58,155 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_479fef81-d573-407e-9eaa-f8c3278a1388/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[586327,586340] [2021-11-21 01:40:58,156 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_479fef81-d573-407e-9eaa-f8c3278a1388/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[586476,586489] [2021-11-21 01:40:58,156 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_479fef81-d573-407e-9eaa-f8c3278a1388/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[586623,586636] [2021-11-21 01:40:58,156 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_479fef81-d573-407e-9eaa-f8c3278a1388/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[586762,586775] [2021-11-21 01:40:58,157 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_479fef81-d573-407e-9eaa-f8c3278a1388/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[586925,586938] [2021-11-21 01:40:58,157 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_479fef81-d573-407e-9eaa-f8c3278a1388/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[587091,587104] [2021-11-21 01:40:58,157 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_479fef81-d573-407e-9eaa-f8c3278a1388/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[587255,587268] [2021-11-21 01:40:58,158 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_479fef81-d573-407e-9eaa-f8c3278a1388/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[587420,587433] [2021-11-21 01:40:58,158 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_479fef81-d573-407e-9eaa-f8c3278a1388/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[587585,587598] [2021-11-21 01:40:58,158 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_479fef81-d573-407e-9eaa-f8c3278a1388/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[587751,587764] [2021-11-21 01:40:58,159 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_479fef81-d573-407e-9eaa-f8c3278a1388/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[587916,587929] [2021-11-21 01:40:58,159 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_479fef81-d573-407e-9eaa-f8c3278a1388/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[588083,588096] [2021-11-21 01:40:58,159 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_479fef81-d573-407e-9eaa-f8c3278a1388/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[588243,588256] [2021-11-21 01:40:58,161 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_479fef81-d573-407e-9eaa-f8c3278a1388/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[588405,588418] [2021-11-21 01:40:58,162 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_479fef81-d573-407e-9eaa-f8c3278a1388/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[588564,588577] [2021-11-21 01:40:58,164 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_479fef81-d573-407e-9eaa-f8c3278a1388/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[588710,588723] [2021-11-21 01:40:58,165 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_479fef81-d573-407e-9eaa-f8c3278a1388/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[588853,588866] [2021-11-21 01:40:58,165 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_479fef81-d573-407e-9eaa-f8c3278a1388/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[588997,589010] [2021-11-21 01:40:58,166 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_479fef81-d573-407e-9eaa-f8c3278a1388/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[589140,589153] [2021-11-21 01:40:58,167 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_479fef81-d573-407e-9eaa-f8c3278a1388/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[589284,589297] [2021-11-21 01:40:58,168 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_479fef81-d573-407e-9eaa-f8c3278a1388/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[589425,589438] [2021-11-21 01:40:58,168 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_479fef81-d573-407e-9eaa-f8c3278a1388/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[589563,589576] [2021-11-21 01:40:58,168 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_479fef81-d573-407e-9eaa-f8c3278a1388/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[589721,589734] [2021-11-21 01:40:58,169 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_479fef81-d573-407e-9eaa-f8c3278a1388/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[589880,589893] [2021-11-21 01:40:58,177 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_479fef81-d573-407e-9eaa-f8c3278a1388/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[590036,590049] [2021-11-21 01:40:58,180 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_479fef81-d573-407e-9eaa-f8c3278a1388/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[590185,590198] [2021-11-21 01:40:58,181 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_479fef81-d573-407e-9eaa-f8c3278a1388/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[590337,590350] [2021-11-21 01:40:58,182 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_479fef81-d573-407e-9eaa-f8c3278a1388/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[590488,590501] [2021-11-21 01:40:58,182 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_479fef81-d573-407e-9eaa-f8c3278a1388/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[590637,590650] [2021-11-21 01:40:58,182 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_479fef81-d573-407e-9eaa-f8c3278a1388/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[590789,590802] [2021-11-21 01:40:58,183 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_479fef81-d573-407e-9eaa-f8c3278a1388/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[590937,590950] [2021-11-21 01:40:58,183 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_479fef81-d573-407e-9eaa-f8c3278a1388/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[591090,591103] [2021-11-21 01:40:58,183 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_479fef81-d573-407e-9eaa-f8c3278a1388/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[591241,591254] [2021-11-21 01:40:58,184 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_479fef81-d573-407e-9eaa-f8c3278a1388/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[591391,591404] [2021-11-21 01:40:58,184 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_479fef81-d573-407e-9eaa-f8c3278a1388/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[591538,591551] [2021-11-21 01:40:58,184 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_479fef81-d573-407e-9eaa-f8c3278a1388/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[591689,591702] [2021-11-21 01:40:58,185 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_479fef81-d573-407e-9eaa-f8c3278a1388/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[591840,591853] [2021-11-21 01:40:58,186 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_479fef81-d573-407e-9eaa-f8c3278a1388/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[591988,592001] [2021-11-21 01:40:58,187 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_479fef81-d573-407e-9eaa-f8c3278a1388/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[592154,592167] [2021-11-21 01:40:58,187 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_479fef81-d573-407e-9eaa-f8c3278a1388/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[592323,592336] [2021-11-21 01:40:58,188 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_479fef81-d573-407e-9eaa-f8c3278a1388/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[592490,592503] [2021-11-21 01:40:58,189 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_479fef81-d573-407e-9eaa-f8c3278a1388/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[592658,592671] [2021-11-21 01:40:58,190 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_479fef81-d573-407e-9eaa-f8c3278a1388/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[592808,592821] [2021-11-21 01:40:58,190 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_479fef81-d573-407e-9eaa-f8c3278a1388/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[592955,592968] [2021-11-21 01:40:58,190 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_479fef81-d573-407e-9eaa-f8c3278a1388/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[593116,593129] [2021-11-21 01:40:58,191 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_479fef81-d573-407e-9eaa-f8c3278a1388/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[593286,593299] [2021-11-21 01:40:58,191 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_479fef81-d573-407e-9eaa-f8c3278a1388/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[593448,593461] [2021-11-21 01:40:58,196 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 01:40:58,418 INFO L208 MainTranslator]: Completed translation [2021-11-21 01:40:58,418 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:40:58 WrapperNode [2021-11-21 01:40:58,418 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-21 01:40:58,419 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-21 01:40:58,420 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-21 01:40:58,420 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-21 01:40:58,430 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:40:58" (1/1) ... [2021-11-21 01:40:58,641 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:40:58" (1/1) ... [2021-11-21 01:40:59,127 INFO L137 Inliner]: procedures = 758, calls = 7229, calls flagged for inlining = 371, calls inlined = 290, statements flattened = 13761 [2021-11-21 01:40:59,128 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-21 01:40:59,129 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-21 01:40:59,129 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-21 01:40:59,129 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-21 01:40:59,159 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:40:58" (1/1) ... [2021-11-21 01:40:59,160 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:40:58" (1/1) ... [2021-11-21 01:40:59,245 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:40:58" (1/1) ... [2021-11-21 01:40:59,245 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:40:58" (1/1) ... [2021-11-21 01:40:59,545 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:40:58" (1/1) ... [2021-11-21 01:40:59,589 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:40:58" (1/1) ... [2021-11-21 01:40:59,626 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:40:58" (1/1) ... [2021-11-21 01:40:59,676 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-21 01:40:59,678 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-21 01:40:59,678 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-21 01:40:59,678 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-21 01:40:59,679 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:40:58" (1/1) ... [2021-11-21 01:40:59,686 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-21 01:40:59,697 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_479fef81-d573-407e-9eaa-f8c3278a1388/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 01:40:59,713 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_479fef81-d573-407e-9eaa-f8c3278a1388/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-21 01:40:59,727 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_479fef81-d573-407e-9eaa-f8c3278a1388/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-21 01:40:59,764 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_pcie_error_reporting [2021-11-21 01:40:59,765 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_pcie_error_reporting [2021-11-21 01:40:59,765 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_98 [2021-11-21 01:40:59,765 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_98 [2021-11-21 01:40:59,765 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_coherent_check_final_state [2021-11-21 01:40:59,765 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_coherent_check_final_state [2021-11-21 01:40:59,765 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2021-11-21 01:40:59,766 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2021-11-21 01:40:59,766 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2021-11-21 01:40:59,766 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-21 01:40:59,766 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-21 01:40:59,766 INFO L130 BoogieDeclarations]: Found specification of procedure skd_quiesce_dev [2021-11-21 01:40:59,766 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_quiesce_dev [2021-11-21 01:40:59,766 INFO L130 BoogieDeclarations]: Found specification of procedure lowmem_page_address [2021-11-21 01:40:59,766 INFO L138 BoogieDeclarations]: Found implementation of procedure lowmem_page_address [2021-11-21 01:40:59,767 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-21 01:40:59,767 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-21 01:40:59,767 INFO L130 BoogieDeclarations]: Found specification of procedure skd_cons_sg_list [2021-11-21 01:40:59,767 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_cons_sg_list [2021-11-21 01:40:59,767 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_word [2021-11-21 01:40:59,767 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_word [2021-11-21 01:40:59,767 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_mmc_sdio_func_check_final_state [2021-11-21 01:40:59,768 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_mmc_sdio_func_check_final_state [2021-11-21 01:40:59,768 INFO L130 BoogieDeclarations]: Found specification of procedure __might_sleep [2021-11-21 01:40:59,768 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_sleep [2021-11-21 01:40:59,768 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-11-21 01:40:59,768 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-11-21 01:40:59,768 INFO L130 BoogieDeclarations]: Found specification of procedure __clear_bit [2021-11-21 01:40:59,768 INFO L138 BoogieDeclarations]: Found implementation of procedure __clear_bit [2021-11-21 01:40:59,769 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-11-21 01:40:59,769 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-11-21 01:40:59,769 INFO L130 BoogieDeclarations]: Found specification of procedure queue_flag_set_unlocked [2021-11-21 01:40:59,769 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_flag_set_unlocked [2021-11-21 01:40:59,769 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_pcie_error_reporting [2021-11-21 01:40:59,769 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_pcie_error_reporting [2021-11-21 01:40:59,769 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_arch_io_check_final_state [2021-11-21 01:40:59,770 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_arch_io_check_final_state [2021-11-21 01:40:59,770 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_module_check_final_state [2021-11-21 01:40:59,770 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_module_check_final_state [2021-11-21 01:40:59,770 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2021-11-21 01:40:59,770 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2021-11-21 01:40:59,770 INFO L130 BoogieDeclarations]: Found specification of procedure skd_pci_remove [2021-11-21 01:40:59,770 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_pci_remove [2021-11-21 01:40:59,770 INFO L130 BoogieDeclarations]: Found specification of procedure skd_isr_fwstate [2021-11-21 01:40:59,771 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_isr_fwstate [2021-11-21 01:40:59,771 INFO L130 BoogieDeclarations]: Found specification of procedure skd_drive_disappeared [2021-11-21 01:40:59,771 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_drive_disappeared [2021-11-21 01:40:59,771 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_pages [2021-11-21 01:40:59,771 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_pages [2021-11-21 01:40:59,771 INFO L130 BoogieDeclarations]: Found specification of procedure skd_release_skreq [2021-11-21 01:40:59,771 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_release_skreq [2021-11-21 01:40:59,772 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2021-11-21 01:40:59,772 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2021-11-21 01:40:59,772 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-11-21 01:40:59,772 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-11-21 01:40:59,772 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-21 01:40:59,772 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-21 01:40:59,772 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_queue_check_final_state [2021-11-21 01:40:59,773 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_queue_check_final_state [2021-11-21 01:40:59,773 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-21 01:40:59,773 INFO L130 BoogieDeclarations]: Found specification of procedure __chk_range_not_ok [2021-11-21 01:40:59,773 INFO L138 BoogieDeclarations]: Found implementation of procedure __chk_range_not_ok [2021-11-21 01:40:59,773 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_request_check_final_state [2021-11-21 01:40:59,773 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_request_check_final_state [2021-11-21 01:40:59,773 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_110 [2021-11-21 01:40:59,773 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_110 [2021-11-21 01:40:59,774 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_consistent_dma_mask [2021-11-21 01:40:59,774 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_consistent_dma_mask [2021-11-21 01:40:59,774 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-21 01:40:59,774 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2021-11-21 01:40:59,774 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2021-11-21 01:40:59,774 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-11-21 01:40:59,774 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-11-21 01:40:59,775 INFO L130 BoogieDeclarations]: Found specification of procedure sg_page [2021-11-21 01:40:59,775 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_page [2021-11-21 01:40:59,775 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-21 01:40:59,775 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_in_interrupt_context [2021-11-21 01:40:59,775 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_in_interrupt_context [2021-11-21 01:40:59,775 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-11-21 01:40:59,775 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-11-21 01:40:59,775 INFO L130 BoogieDeclarations]: Found specification of procedure pci_zalloc_consistent [2021-11-21 01:40:59,776 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_zalloc_consistent [2021-11-21 01:40:59,776 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_bh_check_final_state [2021-11-21 01:40:59,776 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_bh_check_final_state [2021-11-21 01:40:59,776 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-21 01:40:59,776 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_genhd_check_final_state [2021-11-21 01:40:59,776 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_genhd_check_final_state [2021-11-21 01:40:59,776 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_after_alloc [2021-11-21 01:40:59,777 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_after_alloc [2021-11-21 01:40:59,777 INFO L130 BoogieDeclarations]: Found specification of procedure __copy_to_user [2021-11-21 01:40:59,777 INFO L138 BoogieDeclarations]: Found implementation of procedure __copy_to_user [2021-11-21 01:40:59,777 INFO L130 BoogieDeclarations]: Found specification of procedure skd_log_check_status [2021-11-21 01:40:59,777 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_log_check_status [2021-11-21 01:40:59,777 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-21 01:40:59,777 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-21 01:40:59,777 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_register_reset_error_counter [2021-11-21 01:40:59,778 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_register_reset_error_counter [2021-11-21 01:40:59,778 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2021-11-21 01:40:59,778 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2021-11-21 01:40:59,778 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-11-21 01:40:59,778 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-11-21 01:40:59,778 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2021-11-21 01:40:59,778 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2021-11-21 01:40:59,779 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_dma_mask [2021-11-21 01:40:59,779 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_dma_mask [2021-11-21 01:40:59,779 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_to_wait_event [2021-11-21 01:40:59,779 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_to_wait_event [2021-11-21 01:40:59,779 INFO L130 BoogieDeclarations]: Found specification of procedure blk_start_queue [2021-11-21 01:40:59,779 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_start_queue [2021-11-21 01:40:59,779 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2021-11-21 01:40:59,779 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2021-11-21 01:40:59,780 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_lib_idr_check_final_state [2021-11-21 01:40:59,780 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_lib_idr_check_final_state [2021-11-21 01:40:59,780 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2021-11-21 01:40:59,780 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2021-11-21 01:40:59,780 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_drvdata [2021-11-21 01:40:59,780 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_drvdata [2021-11-21 01:40:59,780 INFO L130 BoogieDeclarations]: Found specification of procedure pci_request_regions [2021-11-21 01:40:59,780 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_request_regions [2021-11-21 01:40:59,781 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_srcu_check_final_state [2021-11-21 01:40:59,781 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_srcu_check_final_state [2021-11-21 01:40:59,781 INFO L130 BoogieDeclarations]: Found specification of procedure skd_isr [2021-11-21 01:40:59,781 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_isr [2021-11-21 01:40:59,781 INFO L130 BoogieDeclarations]: Found specification of procedure skd_release_irq [2021-11-21 01:40:59,781 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_release_irq [2021-11-21 01:40:59,781 INFO L130 BoogieDeclarations]: Found specification of procedure skd_free_sg_list [2021-11-21 01:40:59,782 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_free_sg_list [2021-11-21 01:40:59,782 INFO L130 BoogieDeclarations]: Found specification of procedure skd_destruct [2021-11-21 01:40:59,782 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_destruct [2021-11-21 01:40:59,782 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-21 01:40:59,782 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer [2021-11-21 01:40:59,782 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer [2021-11-21 01:40:59,782 INFO L130 BoogieDeclarations]: Found specification of procedure blk_start_request [2021-11-21 01:40:59,782 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_start_request [2021-11-21 01:40:59,783 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-21 01:40:59,783 INFO L130 BoogieDeclarations]: Found specification of procedure skd_send_special_fitmsg [2021-11-21 01:40:59,783 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_send_special_fitmsg [2021-11-21 01:40:59,783 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-11-21 01:40:59,783 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-11-21 01:40:59,783 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-21 01:40:59,783 INFO L130 BoogieDeclarations]: Found specification of procedure __blk_end_request_all [2021-11-21 01:40:59,783 INFO L138 BoogieDeclarations]: Found implementation of procedure __blk_end_request_all [2021-11-21 01:40:59,783 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-21 01:40:59,784 INFO L130 BoogieDeclarations]: Found specification of procedure skd_pci_resume [2021-11-21 01:40:59,784 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_pci_resume [2021-11-21 01:40:59,784 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_spinlock_spin_unlock_lock_of_skd_device [2021-11-21 01:40:59,784 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_spinlock_spin_unlock_lock_of_skd_device [2021-11-21 01:40:59,784 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2021-11-21 01:40:59,784 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2021-11-21 01:40:59,784 INFO L130 BoogieDeclarations]: Found specification of procedure skd_release_msix [2021-11-21 01:40:59,784 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_release_msix [2021-11-21 01:40:59,785 INFO L130 BoogieDeclarations]: Found specification of procedure skd_end_request [2021-11-21 01:40:59,785 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_end_request [2021-11-21 01:40:59,785 INFO L130 BoogieDeclarations]: Found specification of procedure skd_recover_requests [2021-11-21 01:40:59,785 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_recover_requests [2021-11-21 01:40:59,785 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-11-21 01:40:59,785 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-11-21 01:40:59,785 INFO L130 BoogieDeclarations]: Found specification of procedure __copy_from_user [2021-11-21 01:40:59,785 INFO L138 BoogieDeclarations]: Found implementation of procedure __copy_from_user [2021-11-21 01:40:59,786 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_register_reset_error_counter [2021-11-21 01:40:59,786 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_register_reset_error_counter [2021-11-21 01:40:59,786 INFO L130 BoogieDeclarations]: Found specification of procedure blk_peek_request [2021-11-21 01:40:59,786 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_peek_request [2021-11-21 01:40:59,786 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2021-11-21 01:40:59,786 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2021-11-21 01:40:59,786 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2021-11-21 01:40:59,786 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2021-11-21 01:40:59,787 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_timeout [2021-11-21 01:40:59,787 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_timeout [2021-11-21 01:40:59,787 INFO L130 BoogieDeclarations]: Found specification of procedure skd_isr_msg_from_dev [2021-11-21 01:40:59,787 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_isr_msg_from_dev [2021-11-21 01:40:59,787 INFO L130 BoogieDeclarations]: Found specification of procedure finish_wait [2021-11-21 01:40:59,787 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_wait [2021-11-21 01:40:59,787 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-21 01:40:59,788 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-21 01:40:59,788 INFO L130 BoogieDeclarations]: Found specification of procedure writeq [2021-11-21 01:40:59,788 INFO L138 BoogieDeclarations]: Found implementation of procedure writeq [2021-11-21 01:40:59,788 INFO L130 BoogieDeclarations]: Found specification of procedure devm_request_irq [2021-11-21 01:40:59,788 INFO L138 BoogieDeclarations]: Found implementation of procedure devm_request_irq [2021-11-21 01:40:59,788 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2021-11-21 01:40:59,788 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2021-11-21 01:40:59,788 INFO L130 BoogieDeclarations]: Found specification of procedure blk_stop_queue [2021-11-21 01:40:59,788 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_stop_queue [2021-11-21 01:40:59,789 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-21 01:40:59,789 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-21 01:40:59,789 INFO L130 BoogieDeclarations]: Found specification of procedure skd_skdev_state_to_str [2021-11-21 01:40:59,789 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_skdev_state_to_str [2021-11-21 01:40:59,789 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-21 01:40:59,789 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-21 01:40:59,789 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-11-21 01:40:59,789 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-11-21 01:40:59,790 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2021-11-21 01:40:59,790 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2021-11-21 01:40:59,790 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_spinlock_spin_lock_lock_of_skd_device [2021-11-21 01:40:59,790 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_spinlock_spin_lock_lock_of_skd_device [2021-11-21 01:40:59,790 INFO L130 BoogieDeclarations]: Found specification of procedure skd_start_device [2021-11-21 01:40:59,790 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_start_device [2021-11-21 01:40:59,790 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2021-11-21 01:40:59,791 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2021-11-21 01:40:59,791 INFO L130 BoogieDeclarations]: Found specification of procedure skd_postop_sg_list [2021-11-21 01:40:59,791 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_postop_sg_list [2021-11-21 01:40:59,791 INFO L130 BoogieDeclarations]: Found specification of procedure skd_request_fn [2021-11-21 01:40:59,791 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_request_fn [2021-11-21 01:40:59,791 INFO L130 BoogieDeclarations]: Found specification of procedure put_unaligned_be16 [2021-11-21 01:40:59,791 INFO L138 BoogieDeclarations]: Found implementation of procedure put_unaligned_be16 [2021-11-21 01:40:59,792 INFO L130 BoogieDeclarations]: Found specification of procedure skd_send_fitmsg [2021-11-21 01:40:59,792 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_send_fitmsg [2021-11-21 01:40:59,792 INFO L130 BoogieDeclarations]: Found specification of procedure set_capacity [2021-11-21 01:40:59,792 INFO L138 BoogieDeclarations]: Found implementation of procedure set_capacity [2021-11-21 01:40:59,792 INFO L130 BoogieDeclarations]: Found specification of procedure blk_rq_sectors [2021-11-21 01:40:59,792 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_rq_sectors [2021-11-21 01:40:59,792 INFO L130 BoogieDeclarations]: Found specification of procedure skd_log_skreq [2021-11-21 01:40:59,793 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_log_skreq [2021-11-21 01:40:59,793 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-21 01:40:59,793 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-21 01:40:59,793 INFO L130 BoogieDeclarations]: Found specification of procedure skd_disable_interrupts [2021-11-21 01:40:59,793 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_disable_interrupts [2021-11-21 01:40:59,793 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_arch_io_io_mem_unmap [2021-11-21 01:40:59,793 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_arch_io_io_mem_unmap [2021-11-21 01:40:59,793 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2021-11-21 01:40:59,794 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2021-11-21 01:40:59,794 INFO L130 BoogieDeclarations]: Found specification of procedure skd_drive_fault [2021-11-21 01:40:59,794 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_drive_fault [2021-11-21 01:40:59,794 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_sock_check_final_state [2021-11-21 01:40:59,794 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_sock_check_final_state [2021-11-21 01:40:59,794 INFO L130 BoogieDeclarations]: Found specification of procedure skd_isr_completion_posted [2021-11-21 01:40:59,794 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_isr_completion_posted [2021-11-21 01:40:59,794 INFO L130 BoogieDeclarations]: Found specification of procedure blk_rq_pos [2021-11-21 01:40:59,795 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_rq_pos [2021-11-21 01:40:59,795 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_gadget_check_final_state [2021-11-21 01:40:59,795 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_gadget_check_final_state [2021-11-21 01:40:59,795 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-21 01:40:59,795 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-11-21 01:40:59,795 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-11-21 01:40:59,795 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_fs_sysfs_check_final_state [2021-11-21 01:40:59,795 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_fs_sysfs_check_final_state [2021-11-21 01:40:59,796 INFO L130 BoogieDeclarations]: Found specification of procedure skd_sg_io_copy_buffer [2021-11-21 01:40:59,796 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_sg_io_copy_buffer [2021-11-21 01:40:59,796 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_master [2021-11-21 01:40:59,796 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_master [2021-11-21 01:40:59,796 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-21 01:40:59,796 INFO L130 BoogieDeclarations]: Found specification of procedure skd_reg_write64 [2021-11-21 01:40:59,796 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_reg_write64 [2021-11-21 01:40:59,797 INFO L130 BoogieDeclarations]: Found specification of procedure ioremap [2021-11-21 01:40:59,797 INFO L138 BoogieDeclarations]: Found implementation of procedure ioremap [2021-11-21 01:40:59,797 INFO L130 BoogieDeclarations]: Found specification of procedure __free_pages [2021-11-21 01:40:59,797 INFO L138 BoogieDeclarations]: Found implementation of procedure __free_pages [2021-11-21 01:40:59,797 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-21 01:40:59,797 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2021-11-21 01:40:59,797 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2021-11-21 01:40:59,797 INFO L130 BoogieDeclarations]: Found specification of procedure strcat [2021-11-21 01:40:59,798 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2021-11-21 01:40:59,798 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2021-11-21 01:40:59,798 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2021-11-21 01:40:59,798 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2021-11-21 01:40:59,798 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_rtnetlink_check_final_state [2021-11-21 01:40:59,798 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_rtnetlink_check_final_state [2021-11-21 01:40:59,798 INFO L130 BoogieDeclarations]: Found specification of procedure skd_soft_reset [2021-11-21 01:40:59,798 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_soft_reset [2021-11-21 01:40:59,799 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-11-21 01:40:59,799 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-11-21 01:40:59,799 INFO L130 BoogieDeclarations]: Found specification of procedure skd_start_timer [2021-11-21 01:40:59,799 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_start_timer [2021-11-21 01:40:59,799 INFO L130 BoogieDeclarations]: Found specification of procedure skd_reg_write32 [2021-11-21 01:40:59,799 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_reg_write32 [2021-11-21 01:40:59,799 INFO L130 BoogieDeclarations]: Found specification of procedure pci_find_capability [2021-11-21 01:40:59,799 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_find_capability [2021-11-21 01:40:59,799 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-11-21 01:40:59,800 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-11-21 01:40:59,800 INFO L130 BoogieDeclarations]: Found specification of procedure blk_requeue_request [2021-11-21 01:40:59,800 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_requeue_request [2021-11-21 01:40:59,800 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_check_final_state [2021-11-21 01:40:59,800 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_check_final_state [2021-11-21 01:40:59,800 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_urb_check_final_state [2021-11-21 01:40:59,800 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_urb_check_final_state [2021-11-21 01:40:59,800 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_linux_kernel_locking_spinlock_spin_lock [2021-11-21 01:40:59,801 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_linux_kernel_locking_spinlock_spin_lock [2021-11-21 01:40:59,801 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_devm_free_irq [2021-11-21 01:40:59,801 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_devm_free_irq [2021-11-21 01:40:59,801 INFO L130 BoogieDeclarations]: Found specification of procedure skd_reg_read32 [2021-11-21 01:40:59,801 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_reg_read32 [2021-11-21 01:40:59,801 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_rwlock_check_final_state [2021-11-21 01:40:59,801 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_rwlock_check_final_state [2021-11-21 01:40:59,801 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-11-21 01:40:59,802 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-11-21 01:40:59,802 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-21 01:40:59,802 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_fs_char_dev_check_final_state [2021-11-21 01:40:59,802 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_fs_char_dev_check_final_state [2021-11-21 01:40:59,802 INFO L130 BoogieDeclarations]: Found specification of procedure skd_send_internal_skspcl [2021-11-21 01:40:59,802 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_send_internal_skspcl [2021-11-21 01:40:59,802 INFO L130 BoogieDeclarations]: Found specification of procedure skd_release_special [2021-11-21 01:40:59,802 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_release_special [2021-11-21 01:40:59,803 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-21 01:40:59,803 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-21 01:40:59,803 INFO L130 BoogieDeclarations]: Found specification of procedure copy_user_generic [2021-11-21 01:40:59,803 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_user_generic [2021-11-21 01:40:59,803 INFO L130 BoogieDeclarations]: Found specification of procedure skd_drive_state_to_str [2021-11-21 01:40:59,803 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_drive_state_to_str [2021-11-21 01:40:59,803 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_drivers_base_class_check_final_state [2021-11-21 01:40:59,803 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_drivers_base_class_check_final_state [2021-11-21 01:40:59,804 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2021-11-21 01:40:59,804 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2021-11-21 01:40:59,804 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device [2021-11-21 01:40:59,804 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device [2021-11-21 01:40:59,804 INFO L130 BoogieDeclarations]: Found specification of procedure current_thread_info [2021-11-21 01:40:59,804 INFO L138 BoogieDeclarations]: Found implementation of procedure current_thread_info [2021-11-21 01:40:59,804 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab64 [2021-11-21 01:40:59,804 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab64 [2021-11-21 01:40:59,805 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2021-11-21 01:40:59,805 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2021-11-21 01:40:59,805 INFO L130 BoogieDeclarations]: Found specification of procedure skd_name [2021-11-21 01:40:59,805 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_name [2021-11-21 01:40:59,805 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-11-21 01:40:59,805 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-11-21 01:40:59,805 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2021-11-21 01:40:59,806 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2021-11-21 01:40:59,806 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_sched_check_final_state [2021-11-21 01:40:59,806 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_sched_check_final_state [2021-11-21 01:40:59,806 INFO L130 BoogieDeclarations]: Found specification of procedure init_timer_key [2021-11-21 01:40:59,806 INFO L138 BoogieDeclarations]: Found implementation of procedure init_timer_key [2021-11-21 01:40:59,806 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2021-11-21 01:40:59,806 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2021-11-21 01:40:59,806 INFO L130 BoogieDeclarations]: Found specification of procedure devm_free_irq [2021-11-21 01:40:59,807 INFO L138 BoogieDeclarations]: Found implementation of procedure devm_free_irq [2021-11-21 01:40:59,807 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2021-11-21 01:40:59,807 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2021-11-21 01:40:59,807 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_msi [2021-11-21 01:40:59,807 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_msi [2021-11-21 01:40:59,807 INFO L130 BoogieDeclarations]: Found specification of procedure sg_virt [2021-11-21 01:40:59,807 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_virt [2021-11-21 01:40:59,807 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2021-11-21 01:40:59,808 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2021-11-21 01:40:59,808 INFO L130 BoogieDeclarations]: Found specification of procedure skd_pci_shutdown [2021-11-21 01:40:59,808 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_pci_shutdown [2021-11-21 01:40:59,808 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-21 01:40:59,808 INFO L130 BoogieDeclarations]: Found specification of procedure skd_stop_device [2021-11-21 01:40:59,808 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_stop_device [2021-11-21 01:40:59,808 INFO L130 BoogieDeclarations]: Found specification of procedure skd_acquire_irq [2021-11-21 01:40:59,808 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_acquire_irq [2021-11-21 01:40:59,809 INFO L130 BoogieDeclarations]: Found specification of procedure skd_log_skdev [2021-11-21 01:40:59,809 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_log_skdev [2021-11-21 01:41:01,148 INFO L236 CfgBuilder]: Building ICFG [2021-11-21 01:41:01,168 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-21 01:41:01,537 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-21 01:41:01,735 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L6358: assume 0 != __copy_to_user_nocheck_~tmp___1~7#1;__copy_to_user_nocheck_#res#1 := __copy_to_user_nocheck_~ret~3#1; [2021-11-21 01:41:01,736 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L6358: assume !(0 != __copy_to_user_nocheck_~tmp___1~7#1);__copy_to_user_nocheck_#res#1 := __copy_to_user_nocheck_~ret~3#1; [2021-11-21 01:41:01,736 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L6321: SUMMARY for call __copy_to_user_nocheck_#t~ret279#1 := copy_user_generic(__copy_to_user_nocheck_~dst#1.base, __copy_to_user_nocheck_~dst#1.offset, __copy_to_user_nocheck_~src#1.base, __copy_to_user_nocheck_~src#1.offset, __copy_to_user_nocheck_~size#1); srcloc: null [2021-11-21 01:41:01,736 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L6317: assume 16 == __copy_to_user_nocheck_~size#1 % 4294967296; [2021-11-21 01:41:01,736 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L6317: assume !(16 == __copy_to_user_nocheck_~size#1 % 4294967296); [2021-11-21 01:41:01,736 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L6342: assume -9223372036854775808 <= __copy_to_user_nocheck_#t~ret277#1 && __copy_to_user_nocheck_#t~ret277#1 <= 9223372036854775807;__copy_to_user_nocheck_~tmp___0~11#1 := __copy_to_user_nocheck_#t~ret277#1;havoc __copy_to_user_nocheck_#t~ret277#1; [2021-11-21 01:41:01,737 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L6313: assume 10 == __copy_to_user_nocheck_~size#1 % 4294967296; [2021-11-21 01:41:01,737 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L6313: assume !(10 == __copy_to_user_nocheck_~size#1 % 4294967296); [2021-11-21 01:41:01,737 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L6309: assume 8 == __copy_to_user_nocheck_~size#1 % 4294967296; [2021-11-21 01:41:01,737 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L6309: assume !(8 == __copy_to_user_nocheck_~size#1 % 4294967296); [2021-11-21 01:41:01,737 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L6305: assume 4 == __copy_to_user_nocheck_~size#1 % 4294967296; [2021-11-21 01:41:01,737 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L6305: assume !(4 == __copy_to_user_nocheck_~size#1 % 4294967296); [2021-11-21 01:41:01,737 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L6301: assume 2 == __copy_to_user_nocheck_~size#1 % 4294967296; [2021-11-21 01:41:01,737 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L6301: assume !(2 == __copy_to_user_nocheck_~size#1 % 4294967296); [2021-11-21 01:41:01,738 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L6318: SUMMARY for call __copy_to_user_nocheck_#t~ret278#1 := ldv__builtin_expect((if 0 != __copy_to_user_nocheck_~ret~3#1 then 1 else 0), 0); srcloc: null [2021-11-21 01:41:01,738 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L6314: SUMMARY for call __copy_to_user_nocheck_#t~ret277#1 := ldv__builtin_expect((if 0 != __copy_to_user_nocheck_~ret~3#1 then 1 else 0), 0); srcloc: null [2021-11-21 01:41:01,738 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##1: assume 1 == __copy_to_user_nocheck_~size#1 % 4294967296; [2021-11-21 01:41:01,738 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L6310: __copy_to_user_nocheck_#res#1 := __copy_to_user_nocheck_~ret~3#1; [2021-11-21 01:41:01,738 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L6306: __copy_to_user_nocheck_#res#1 := __copy_to_user_nocheck_~ret~3#1; [2021-11-21 01:41:01,738 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##2: assume !(1 == __copy_to_user_nocheck_~size#1 % 4294967296); [2021-11-21 01:41:01,738 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L6302: __copy_to_user_nocheck_#res#1 := __copy_to_user_nocheck_~ret~3#1; [2021-11-21 01:41:01,739 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L6368: __copy_to_user_nocheck_~tmp___2~2#1 := __copy_to_user_nocheck_#t~ret279#1;havoc __copy_to_user_nocheck_#t~ret279#1;__copy_to_user_nocheck_#res#1 := (if __copy_to_user_nocheck_~tmp___2~2#1 % 18446744073709551616 % 4294967296 <= 2147483647 then __copy_to_user_nocheck_~tmp___2~2#1 % 18446744073709551616 % 4294967296 else __copy_to_user_nocheck_~tmp___2~2#1 % 18446744073709551616 % 4294967296 - 4294967296); [2021-11-21 01:41:01,739 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L6298: __copy_to_user_nocheck_#res#1 := __copy_to_user_nocheck_~ret~3#1; [2021-11-21 01:41:01,739 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L6356: assume -9223372036854775808 <= __copy_to_user_nocheck_#t~ret278#1 && __copy_to_user_nocheck_#t~ret278#1 <= 9223372036854775807;__copy_to_user_nocheck_~tmp___1~7#1 := __copy_to_user_nocheck_#t~ret278#1;havoc __copy_to_user_nocheck_#t~ret278#1; [2021-11-21 01:41:01,739 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L6344: assume 0 != __copy_to_user_nocheck_~tmp___0~11#1;__copy_to_user_nocheck_#res#1 := __copy_to_user_nocheck_~ret~3#1; [2021-11-21 01:41:01,739 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L6344: assume !(0 != __copy_to_user_nocheck_~tmp___0~11#1);__copy_to_user_nocheck_#res#1 := __copy_to_user_nocheck_~ret~3#1; [2021-11-21 01:41:15,119 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L6208: assume 16 == __copy_from_user_nocheck_~size#1 % 4294967296; [2021-11-21 01:41:15,119 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L6208: assume !(16 == __copy_from_user_nocheck_~size#1 % 4294967296); [2021-11-21 01:41:15,120 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L6204: assume 10 == __copy_from_user_nocheck_~size#1 % 4294967296; [2021-11-21 01:41:15,120 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L6204: assume !(10 == __copy_from_user_nocheck_~size#1 % 4294967296); [2021-11-21 01:41:15,120 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L6200: assume 8 == __copy_from_user_nocheck_~size#1 % 4294967296; [2021-11-21 01:41:15,120 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L6200: assume !(8 == __copy_from_user_nocheck_~size#1 % 4294967296); [2021-11-21 01:41:15,120 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L6196: assume 4 == __copy_from_user_nocheck_~size#1 % 4294967296; [2021-11-21 01:41:15,120 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L6196: assume !(4 == __copy_from_user_nocheck_~size#1 % 4294967296); [2021-11-21 01:41:15,120 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L6192: assume 2 == __copy_from_user_nocheck_~size#1 % 4294967296; [2021-11-21 01:41:15,120 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L6192: assume !(2 == __copy_from_user_nocheck_~size#1 % 4294967296); [2021-11-21 01:41:15,120 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L6238: assume -9223372036854775808 <= __copy_from_user_nocheck_#t~ret272#1 && __copy_from_user_nocheck_#t~ret272#1 <= 9223372036854775807;__copy_from_user_nocheck_~tmp___0~10#1 := __copy_from_user_nocheck_#t~ret272#1;havoc __copy_from_user_nocheck_#t~ret272#1; [2021-11-21 01:41:15,121 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L6209: SUMMARY for call __copy_from_user_nocheck_#t~ret273#1 := ldv__builtin_expect((if 0 != __copy_from_user_nocheck_~ret~2#1 then 1 else 0), 0); srcloc: null [2021-11-21 01:41:15,121 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L6205: SUMMARY for call __copy_from_user_nocheck_#t~ret272#1 := ldv__builtin_expect((if 0 != __copy_from_user_nocheck_~ret~2#1 then 1 else 0), 0); srcloc: null [2021-11-21 01:41:15,121 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L6201: __copy_from_user_nocheck_#res#1 := __copy_from_user_nocheck_~ret~2#1; [2021-11-21 01:41:15,121 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L6197: __copy_from_user_nocheck_#res#1 := __copy_from_user_nocheck_~ret~2#1; [2021-11-21 01:41:15,121 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L6255: assume 0 != __copy_from_user_nocheck_~tmp___1~6#1;__copy_from_user_nocheck_#res#1 := __copy_from_user_nocheck_~ret~2#1; [2021-11-21 01:41:15,121 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L6255: assume !(0 != __copy_from_user_nocheck_~tmp___1~6#1);__copy_from_user_nocheck_#res#1 := __copy_from_user_nocheck_~ret~2#1; [2021-11-21 01:41:15,121 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L6193: __copy_from_user_nocheck_#res#1 := __copy_from_user_nocheck_~ret~2#1; [2021-11-21 01:41:15,121 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L6189: __copy_from_user_nocheck_#res#1 := __copy_from_user_nocheck_~ret~2#1; [2021-11-21 01:41:15,121 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##1: assume 1 == __copy_from_user_nocheck_~size#1 % 4294967296; [2021-11-21 01:41:15,121 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##2: assume !(1 == __copy_from_user_nocheck_~size#1 % 4294967296); [2021-11-21 01:41:15,122 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L6240: assume 0 != __copy_from_user_nocheck_~tmp___0~10#1;__copy_from_user_nocheck_#res#1 := __copy_from_user_nocheck_~ret~2#1; [2021-11-21 01:41:15,122 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L6240: assume !(0 != __copy_from_user_nocheck_~tmp___0~10#1);__copy_from_user_nocheck_#res#1 := __copy_from_user_nocheck_~ret~2#1; [2021-11-21 01:41:15,122 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L6265: __copy_from_user_nocheck_~tmp___2~1#1 := __copy_from_user_nocheck_#t~ret274#1;havoc __copy_from_user_nocheck_#t~ret274#1;__copy_from_user_nocheck_#res#1 := (if __copy_from_user_nocheck_~tmp___2~1#1 % 18446744073709551616 % 4294967296 <= 2147483647 then __copy_from_user_nocheck_~tmp___2~1#1 % 18446744073709551616 % 4294967296 else __copy_from_user_nocheck_~tmp___2~1#1 % 18446744073709551616 % 4294967296 - 4294967296); [2021-11-21 01:41:15,122 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L6253: assume -9223372036854775808 <= __copy_from_user_nocheck_#t~ret273#1 && __copy_from_user_nocheck_#t~ret273#1 <= 9223372036854775807;__copy_from_user_nocheck_~tmp___1~6#1 := __copy_from_user_nocheck_#t~ret273#1;havoc __copy_from_user_nocheck_#t~ret273#1; [2021-11-21 01:41:15,122 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L6212: SUMMARY for call __copy_from_user_nocheck_#t~ret274#1 := copy_user_generic(__copy_from_user_nocheck_~dst#1.base, __copy_from_user_nocheck_~dst#1.offset, __copy_from_user_nocheck_~src#1.base, __copy_from_user_nocheck_~src#1.offset, __copy_from_user_nocheck_~size#1); srcloc: null [2021-11-21 01:41:23,946 INFO L277 CfgBuilder]: Performing block encoding [2021-11-21 01:41:26,750 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-21 01:41:26,751 INFO L301 CfgBuilder]: Removed 4 assume(true) statements. [2021-11-21 01:41:26,757 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 01:41:26 BoogieIcfgContainer [2021-11-21 01:41:26,757 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-21 01:41:26,759 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-21 01:41:26,759 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-21 01:41:26,762 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-21 01:41:26,762 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 01:40:51" (1/3) ... [2021-11-21 01:41:26,763 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ac1d74c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 01:41:26, skipping insertion in model container [2021-11-21 01:41:26,764 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:40:58" (2/3) ... [2021-11-21 01:41:26,764 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ac1d74c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 01:41:26, skipping insertion in model container [2021-11-21 01:41:26,764 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 01:41:26" (3/3) ... [2021-11-21 01:41:26,766 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.0-rc1---drivers--block--skd.ko.cil.i [2021-11-21 01:41:26,772 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-21 01:41:26,772 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 34 error locations. [2021-11-21 01:41:26,841 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-21 01:41:26,846 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-21 01:41:26,847 INFO L340 AbstractCegarLoop]: Starting to check reachability of 34 error locations. [2021-11-21 01:41:26,938 INFO L276 IsEmpty]: Start isEmpty. Operand has 2706 states, 1613 states have (on average 1.3316800991940483) internal successors, (2148), 1731 states have internal predecessors, (2148), 899 states have call successors, (899), 161 states have call predecessors, (899), 160 states have return successors, (889), 855 states have call predecessors, (889), 889 states have call successors, (889) [2021-11-21 01:41:26,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-11-21 01:41:26,944 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:41:26,945 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:41:26,946 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_linux_arch_io_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2021-11-21 01:41:26,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:41:26,953 INFO L85 PathProgramCache]: Analyzing trace with hash -174472842, now seen corresponding path program 1 times [2021-11-21 01:41:26,963 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:41:26,964 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1586418988] [2021-11-21 01:41:26,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:41:26,965 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:41:27,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:41:27,990 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-21 01:41:27,991 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:41:27,991 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1586418988] [2021-11-21 01:41:27,994 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1586418988] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:41:27,994 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:41:27,995 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-21 01:41:27,996 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2144666198] [2021-11-21 01:41:27,997 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:41:28,001 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 01:41:28,002 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:41:28,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 01:41:28,044 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 01:41:28,053 INFO L87 Difference]: Start difference. First operand has 2706 states, 1613 states have (on average 1.3316800991940483) internal successors, (2148), 1731 states have internal predecessors, (2148), 899 states have call successors, (899), 161 states have call predecessors, (899), 160 states have return successors, (889), 855 states have call predecessors, (889), 889 states have call successors, (889) Second operand has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-11-21 01:41:31,374 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:41:35,942 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:41:44,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:41:44,103 INFO L93 Difference]: Finished difference Result 7897 states and 11711 transitions. [2021-11-21 01:41:44,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-21 01:41:44,105 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 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 47 [2021-11-21 01:41:44,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:41:44,172 INFO L225 Difference]: With dead ends: 7897 [2021-11-21 01:41:44,172 INFO L226 Difference]: Without dead ends: 5180 [2021-11-21 01:41:44,201 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-21 01:41:44,217 INFO L933 BasicCegarLoop]: 4522 mSDtfsCounter, 3621 mSDsluCounter, 8953 mSDsCounter, 0 mSdLazyCounter, 1661 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3623 SdHoareTripleChecker+Valid, 12401 SdHoareTripleChecker+Invalid, 1663 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1661 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.5s IncrementalHoareTripleChecker+Time [2021-11-21 01:41:44,224 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3623 Valid, 12401 Invalid, 1663 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 1661 Invalid, 1 Unknown, 0 Unchecked, 15.5s Time] [2021-11-21 01:41:44,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5180 states. [2021-11-21 01:41:44,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5180 to 4996. [2021-11-21 01:41:44,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4996 states, 2998 states have (on average 1.3075383589059373) internal successors, (3920), 3188 states have internal predecessors, (3920), 1670 states have call successors, (1670), 296 states have call predecessors, (1670), 294 states have return successors, (1671), 1595 states have call predecessors, (1671), 1668 states have call successors, (1671) [2021-11-21 01:41:44,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4996 states to 4996 states and 7261 transitions. [2021-11-21 01:41:44,997 INFO L78 Accepts]: Start accepts. Automaton has 4996 states and 7261 transitions. Word has length 47 [2021-11-21 01:41:44,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:41:44,998 INFO L470 AbstractCegarLoop]: Abstraction has 4996 states and 7261 transitions. [2021-11-21 01:41:44,998 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-11-21 01:41:44,998 INFO L276 IsEmpty]: Start isEmpty. Operand 4996 states and 7261 transitions. [2021-11-21 01:41:45,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-11-21 01:41:45,003 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:41:45,004 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:41:45,004 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-21 01:41:45,005 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_linux_block_genhd_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2021-11-21 01:41:45,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:41:45,008 INFO L85 PathProgramCache]: Analyzing trace with hash -1122216862, now seen corresponding path program 1 times [2021-11-21 01:41:45,008 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:41:45,008 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1568093828] [2021-11-21 01:41:45,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:41:45,008 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:41:45,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:41:45,501 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-21 01:41:45,502 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:41:45,502 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1568093828] [2021-11-21 01:41:45,502 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1568093828] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:41:45,502 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:41:45,502 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-21 01:41:45,503 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [40667978] [2021-11-21 01:41:45,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:41:45,505 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 01:41:45,505 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:41:45,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 01:41:45,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 01:41:45,506 INFO L87 Difference]: Start difference. First operand 4996 states and 7261 transitions. Second operand has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2021-11-21 01:41:48,898 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:41:53,262 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.59s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:41:55,505 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.68s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:41:56,692 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:42:02,533 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:42:04,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:42:04,728 INFO L93 Difference]: Finished difference Result 9831 states and 14297 transitions. [2021-11-21 01:42:04,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-21 01:42:04,728 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 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 52 [2021-11-21 01:42:04,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:42:04,817 INFO L225 Difference]: With dead ends: 9831 [2021-11-21 01:42:04,817 INFO L226 Difference]: Without dead ends: 9829 [2021-11-21 01:42:04,826 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-21 01:42:04,827 INFO L933 BasicCegarLoop]: 4406 mSDtfsCounter, 3625 mSDsluCounter, 8780 mSDsCounter, 0 mSdLazyCounter, 1623 mSolverCounterSat, 2 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3627 SdHoareTripleChecker+Valid, 12134 SdHoareTripleChecker+Invalid, 1627 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1623 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.8s IncrementalHoareTripleChecker+Time [2021-11-21 01:42:04,828 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3627 Valid, 12134 Invalid, 1627 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1623 Invalid, 2 Unknown, 0 Unchecked, 18.8s Time] [2021-11-21 01:42:04,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9829 states. [2021-11-21 01:42:05,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9829 to 9645. [2021-11-21 01:42:05,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9645 states, 5796 states have (on average 1.3088336783988959) internal successors, (7586), 6143 states have internal predecessors, (7586), 3248 states have call successors, (3248), 570 states have call predecessors, (3248), 567 states have return successors, (3267), 3097 states have call predecessors, (3267), 3246 states have call successors, (3267) [2021-11-21 01:42:05,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9645 states to 9645 states and 14101 transitions. [2021-11-21 01:42:05,849 INFO L78 Accepts]: Start accepts. Automaton has 9645 states and 14101 transitions. Word has length 52 [2021-11-21 01:42:05,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:42:05,851 INFO L470 AbstractCegarLoop]: Abstraction has 9645 states and 14101 transitions. [2021-11-21 01:42:05,852 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2021-11-21 01:42:05,852 INFO L276 IsEmpty]: Start isEmpty. Operand 9645 states and 14101 transitions. [2021-11-21 01:42:05,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-11-21 01:42:05,861 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:42:05,862 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:42:05,862 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-21 01:42:05,863 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_linux_block_queue_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2021-11-21 01:42:05,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:42:05,864 INFO L85 PathProgramCache]: Analyzing trace with hash 1135563729, now seen corresponding path program 1 times [2021-11-21 01:42:05,864 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:42:05,864 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1547952125] [2021-11-21 01:42:05,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:42:05,865 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:42:06,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:42:06,367 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-21 01:42:06,367 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:42:06,368 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1547952125] [2021-11-21 01:42:06,368 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1547952125] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:42:06,368 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:42:06,368 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-21 01:42:06,369 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1230666946] [2021-11-21 01:42:06,369 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:42:06,369 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 01:42:06,370 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:42:06,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 01:42:06,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 01:42:06,371 INFO L87 Difference]: Start difference. First operand 9645 states and 14101 transitions. Second operand has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2021-11-21 01:42:09,332 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.77s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:42:11,370 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:42:14,475 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:42:23,873 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:42:24,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:42:24,634 INFO L93 Difference]: Finished difference Result 17741 states and 25926 transitions. [2021-11-21 01:42:24,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-21 01:42:24,635 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 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 57 [2021-11-21 01:42:24,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:42:24,797 INFO L225 Difference]: With dead ends: 17741 [2021-11-21 01:42:24,798 INFO L226 Difference]: Without dead ends: 17739 [2021-11-21 01:42:24,814 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-21 01:42:24,816 INFO L933 BasicCegarLoop]: 4214 mSDtfsCounter, 3788 mSDsluCounter, 8543 mSDsCounter, 0 mSdLazyCounter, 1526 mSolverCounterSat, 3 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3790 SdHoareTripleChecker+Valid, 11749 SdHoareTripleChecker+Invalid, 1532 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1526 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.8s IncrementalHoareTripleChecker+Time [2021-11-21 01:42:24,816 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3790 Valid, 11749 Invalid, 1532 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1526 Invalid, 3 Unknown, 0 Unchecked, 17.8s Time] [2021-11-21 01:42:24,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17739 states. [2021-11-21 01:42:26,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17739 to 17560. [2021-11-21 01:42:26,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17560 states, 10579 states have (on average 1.3118442196804991) internal successors, (13878), 11205 states have internal predecessors, (13878), 5912 states have call successors, (5912), 1038 states have call predecessors, (5912), 1035 states have return successors, (5952), 5618 states have call predecessors, (5952), 5910 states have call successors, (5952) [2021-11-21 01:42:26,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17560 states to 17560 states and 25742 transitions. [2021-11-21 01:42:26,323 INFO L78 Accepts]: Start accepts. Automaton has 17560 states and 25742 transitions. Word has length 57 [2021-11-21 01:42:26,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:42:26,326 INFO L470 AbstractCegarLoop]: Abstraction has 17560 states and 25742 transitions. [2021-11-21 01:42:26,327 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2021-11-21 01:42:26,327 INFO L276 IsEmpty]: Start isEmpty. Operand 17560 states and 25742 transitions. [2021-11-21 01:42:26,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-11-21 01:42:26,330 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:42:26,331 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:42:26,331 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-21 01:42:26,332 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_linux_block_request_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2021-11-21 01:42:26,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:42:26,332 INFO L85 PathProgramCache]: Analyzing trace with hash -1647116332, now seen corresponding path program 1 times [2021-11-21 01:42:26,332 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:42:26,333 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1488668943] [2021-11-21 01:42:26,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:42:26,333 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:42:26,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:42:26,773 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-21 01:42:26,773 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:42:26,774 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1488668943] [2021-11-21 01:42:26,774 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1488668943] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:42:26,774 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:42:26,774 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-21 01:42:26,774 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2116383918] [2021-11-21 01:42:26,775 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:42:26,775 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 01:42:26,775 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:42:26,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 01:42:26,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 01:42:26,776 INFO L87 Difference]: Start difference. First operand 17560 states and 25742 transitions. Second operand has 4 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-11-21 01:42:29,772 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:42:34,436 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:42:38,500 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.42s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:42:43,848 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.66s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:42:45,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:42:45,123 INFO L93 Difference]: Finished difference Result 25572 states and 37428 transitions. [2021-11-21 01:42:45,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-21 01:42:45,124 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 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 62 [2021-11-21 01:42:45,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:42:45,277 INFO L225 Difference]: With dead ends: 25572 [2021-11-21 01:42:45,277 INFO L226 Difference]: Without dead ends: 25570 [2021-11-21 01:42:45,297 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-21 01:42:45,299 INFO L933 BasicCegarLoop]: 4483 mSDtfsCounter, 3621 mSDsluCounter, 8879 mSDsCounter, 0 mSdLazyCounter, 1646 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3623 SdHoareTripleChecker+Valid, 12289 SdHoareTripleChecker+Invalid, 1649 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1646 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.9s IncrementalHoareTripleChecker+Time [2021-11-21 01:42:45,300 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3623 Valid, 12289 Invalid, 1649 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1646 Invalid, 2 Unknown, 0 Unchecked, 17.9s Time] [2021-11-21 01:42:45,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25570 states. [2021-11-21 01:42:47,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25570 to 25412. [2021-11-21 01:42:47,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25412 states, 15323 states have (on average 1.3130588004959864) internal successors, (20120), 16226 states have internal predecessors, (20120), 8551 states have call successors, (8551), 1507 states have call predecessors, (8551), 1504 states have return successors, (8597), 8116 states have call predecessors, (8597), 8549 states have call successors, (8597) [2021-11-21 01:42:47,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25412 states to 25412 states and 37268 transitions. [2021-11-21 01:42:47,706 INFO L78 Accepts]: Start accepts. Automaton has 25412 states and 37268 transitions. Word has length 62 [2021-11-21 01:42:47,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:42:47,707 INFO L470 AbstractCegarLoop]: Abstraction has 25412 states and 37268 transitions. [2021-11-21 01:42:47,707 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-11-21 01:42:47,707 INFO L276 IsEmpty]: Start isEmpty. Operand 25412 states and 37268 transitions. [2021-11-21 01:42:47,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2021-11-21 01:42:47,710 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:42:47,710 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:42:47,710 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-21 01:42:47,710 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_linux_drivers_base_class_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2021-11-21 01:42:47,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:42:47,711 INFO L85 PathProgramCache]: Analyzing trace with hash -1156407448, now seen corresponding path program 1 times [2021-11-21 01:42:47,711 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:42:47,711 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [758814183] [2021-11-21 01:42:47,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:42:47,712 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:42:48,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:42:48,207 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-21 01:42:48,207 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:42:48,208 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [758814183] [2021-11-21 01:42:48,208 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [758814183] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:42:48,208 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:42:48,208 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-21 01:42:48,208 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1689268197] [2021-11-21 01:42:48,209 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:42:48,210 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 01:42:48,210 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:42:48,211 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 01:42:48,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 01:42:48,211 INFO L87 Difference]: Start difference. First operand 25412 states and 37268 transitions. Second operand has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2021-11-21 01:42:51,350 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:42:55,400 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.80s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:42:57,026 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:42:59,011 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.98s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:43:00,604 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:43:05,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:43:05,761 INFO L93 Difference]: Finished difference Result 25570 states and 37426 transitions. [2021-11-21 01:43:05,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-21 01:43:05,762 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 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 67 [2021-11-21 01:43:05,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:43:05,909 INFO L225 Difference]: With dead ends: 25570 [2021-11-21 01:43:05,910 INFO L226 Difference]: Without dead ends: 25568 [2021-11-21 01:43:05,927 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-21 01:43:05,928 INFO L933 BasicCegarLoop]: 4483 mSDtfsCounter, 3618 mSDsluCounter, 8879 mSDsCounter, 0 mSdLazyCounter, 1647 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3620 SdHoareTripleChecker+Valid, 12289 SdHoareTripleChecker+Invalid, 1649 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1647 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.0s IncrementalHoareTripleChecker+Time [2021-11-21 01:43:05,929 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3620 Valid, 12289 Invalid, 1649 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1647 Invalid, 1 Unknown, 0 Unchecked, 17.0s Time] [2021-11-21 01:43:05,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25568 states. [2021-11-21 01:43:07,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25568 to 25418. [2021-11-21 01:43:07,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25418 states, 15326 states have (on average 1.3129975205533082) internal successors, (20123), 16229 states have internal predecessors, (20123), 8553 states have call successors, (8553), 1508 states have call predecessors, (8553), 1505 states have return successors, (8599), 8118 states have call predecessors, (8599), 8551 states have call successors, (8599) [2021-11-21 01:43:07,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25418 states to 25418 states and 37275 transitions. [2021-11-21 01:43:07,778 INFO L78 Accepts]: Start accepts. Automaton has 25418 states and 37275 transitions. Word has length 67 [2021-11-21 01:43:07,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:43:07,778 INFO L470 AbstractCegarLoop]: Abstraction has 25418 states and 37275 transitions. [2021-11-21 01:43:07,779 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2021-11-21 01:43:07,779 INFO L276 IsEmpty]: Start isEmpty. Operand 25418 states and 37275 transitions. [2021-11-21 01:43:07,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2021-11-21 01:43:07,780 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:43:07,781 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:43:07,781 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-21 01:43:07,781 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_linux_fs_char_dev_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2021-11-21 01:43:07,782 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:43:07,782 INFO L85 PathProgramCache]: Analyzing trace with hash 1453438679, now seen corresponding path program 1 times [2021-11-21 01:43:07,782 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:43:07,782 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1873040713] [2021-11-21 01:43:07,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:43:07,783 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:43:07,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:43:08,329 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-21 01:43:08,329 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:43:08,329 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1873040713] [2021-11-21 01:43:08,330 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1873040713] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:43:08,330 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:43:08,330 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-21 01:43:08,330 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [852411871] [2021-11-21 01:43:08,330 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:43:08,331 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 01:43:08,331 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:43:08,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 01:43:08,331 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 01:43:08,332 INFO L87 Difference]: Start difference. First operand 25418 states and 37275 transitions. Second operand has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-11-21 01:43:11,765 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:43:18,272 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:43:24,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:43:24,327 INFO L93 Difference]: Finished difference Result 25568 states and 37424 transitions. [2021-11-21 01:43:24,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-21 01:43:24,329 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 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 72 [2021-11-21 01:43:24,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:43:24,564 INFO L225 Difference]: With dead ends: 25568 [2021-11-21 01:43:24,565 INFO L226 Difference]: Without dead ends: 25566 [2021-11-21 01:43:24,576 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-21 01:43:24,578 INFO L933 BasicCegarLoop]: 4483 mSDtfsCounter, 3615 mSDsluCounter, 8879 mSDsCounter, 0 mSdLazyCounter, 1647 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3617 SdHoareTripleChecker+Valid, 12289 SdHoareTripleChecker+Invalid, 1649 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1647 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.3s IncrementalHoareTripleChecker+Time [2021-11-21 01:43:24,578 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3617 Valid, 12289 Invalid, 1649 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1647 Invalid, 1 Unknown, 0 Unchecked, 15.3s Time] [2021-11-21 01:43:24,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25566 states. [2021-11-21 01:43:25,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25566 to 25424. [2021-11-21 01:43:25,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25424 states, 15329 states have (on average 1.3129362645965164) internal successors, (20126), 16232 states have internal predecessors, (20126), 8555 states have call successors, (8555), 1509 states have call predecessors, (8555), 1506 states have return successors, (8601), 8120 states have call predecessors, (8601), 8553 states have call successors, (8601) [2021-11-21 01:43:26,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25424 states to 25424 states and 37282 transitions. [2021-11-21 01:43:26,100 INFO L78 Accepts]: Start accepts. Automaton has 25424 states and 37282 transitions. Word has length 72 [2021-11-21 01:43:26,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:43:26,103 INFO L470 AbstractCegarLoop]: Abstraction has 25424 states and 37282 transitions. [2021-11-21 01:43:26,103 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-11-21 01:43:26,103 INFO L276 IsEmpty]: Start isEmpty. Operand 25424 states and 37282 transitions. [2021-11-21 01:43:26,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2021-11-21 01:43:26,105 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:43:26,105 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:43:26,105 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-21 01:43:26,106 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2021-11-21 01:43:26,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:43:26,106 INFO L85 PathProgramCache]: Analyzing trace with hash -2009721783, now seen corresponding path program 1 times [2021-11-21 01:43:26,106 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:43:26,107 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [948513810] [2021-11-21 01:43:26,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:43:26,107 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:43:26,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:43:26,499 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-21 01:43:26,499 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:43:26,499 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [948513810] [2021-11-21 01:43:26,500 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [948513810] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:43:26,500 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:43:26,500 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-21 01:43:26,500 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2004534470] [2021-11-21 01:43:26,500 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:43:26,501 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 01:43:26,501 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:43:26,502 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 01:43:26,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 01:43:26,502 INFO L87 Difference]: Start difference. First operand 25424 states and 37282 transitions. Second operand has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2021-11-21 01:43:29,777 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.94s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:43:31,810 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:43:34,388 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:43:40,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:43:40,216 INFO L93 Difference]: Finished difference Result 25424 states and 37282 transitions. [2021-11-21 01:43:40,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-21 01:43:40,216 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 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 77 [2021-11-21 01:43:40,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:43:40,325 INFO L225 Difference]: With dead ends: 25424 [2021-11-21 01:43:40,326 INFO L226 Difference]: Without dead ends: 25422 [2021-11-21 01:43:40,338 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-21 01:43:40,339 INFO L933 BasicCegarLoop]: 3347 mSDtfsCounter, 3831 mSDsluCounter, 3854 mSDsCounter, 0 mSdLazyCounter, 1016 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3833 SdHoareTripleChecker+Valid, 6694 SdHoareTripleChecker+Invalid, 1017 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1016 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.0s IncrementalHoareTripleChecker+Time [2021-11-21 01:43:40,340 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3833 Valid, 6694 Invalid, 1017 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1016 Invalid, 1 Unknown, 0 Unchecked, 13.0s Time] [2021-11-21 01:43:40,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25422 states. [2021-11-21 01:43:41,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25422 to 25422. [2021-11-21 01:43:41,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25422 states, 15328 states have (on average 1.312891440501044) internal successors, (20124), 16230 states have internal predecessors, (20124), 8555 states have call successors, (8555), 1509 states have call predecessors, (8555), 1506 states have return successors, (8601), 8120 states have call predecessors, (8601), 8553 states have call successors, (8601) [2021-11-21 01:43:41,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25422 states to 25422 states and 37280 transitions. [2021-11-21 01:43:41,982 INFO L78 Accepts]: Start accepts. Automaton has 25422 states and 37280 transitions. Word has length 77 [2021-11-21 01:43:41,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:43:41,982 INFO L470 AbstractCegarLoop]: Abstraction has 25422 states and 37280 transitions. [2021-11-21 01:43:41,982 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2021-11-21 01:43:41,983 INFO L276 IsEmpty]: Start isEmpty. Operand 25422 states and 37280 transitions. [2021-11-21 01:43:41,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2021-11-21 01:43:41,984 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:43:41,985 INFO L514 BasicCegarLoop]: 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, 1, 1] [2021-11-21 01:43:41,985 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-21 01:43:41,985 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr3ASSERT_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)] === [2021-11-21 01:43:41,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:43:41,986 INFO L85 PathProgramCache]: Analyzing trace with hash 2132775813, now seen corresponding path program 1 times [2021-11-21 01:43:41,986 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:43:41,986 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1049024180] [2021-11-21 01:43:41,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:43:41,987 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:43:42,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:43:42,648 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2021-11-21 01:43:42,648 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:43:42,648 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1049024180] [2021-11-21 01:43:42,649 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1049024180] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:43:42,649 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:43:42,649 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-21 01:43:42,649 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1592938460] [2021-11-21 01:43:42,650 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:43:42,651 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 01:43:42,651 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:43:42,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 01:43:42,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 01:43:42,652 INFO L87 Difference]: Start difference. First operand 25422 states and 37280 transitions. Second operand has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-11-21 01:43:45,551 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:43:49,928 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:43:53,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:43:53,032 INFO L93 Difference]: Finished difference Result 54350 states and 79243 transitions. [2021-11-21 01:43:53,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 01:43:53,033 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 93 [2021-11-21 01:43:53,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:43:53,150 INFO L225 Difference]: With dead ends: 54350 [2021-11-21 01:43:53,150 INFO L226 Difference]: Without dead ends: 28946 [2021-11-21 01:43:53,279 INFO L932 BasicCegarLoop]: 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 [2021-11-21 01:43:53,280 INFO L933 BasicCegarLoop]: 3880 mSDtfsCounter, 3618 mSDsluCounter, 1224 mSDsCounter, 0 mSdLazyCounter, 753 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3620 SdHoareTripleChecker+Valid, 4922 SdHoareTripleChecker+Invalid, 756 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 753 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.4s IncrementalHoareTripleChecker+Time [2021-11-21 01:43:53,281 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3620 Valid, 4922 Invalid, 756 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 753 Invalid, 2 Unknown, 0 Unchecked, 9.4s Time] [2021-11-21 01:43:53,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28946 states. [2021-11-21 01:43:54,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28946 to 28896. [2021-11-21 01:43:54,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28896 states, 17374 states have (on average 1.3050535282606193) internal successors, (22674), 18338 states have internal predecessors, (22674), 9599 states have call successors, (9599), 1893 states have call predecessors, (9599), 1890 states have return successors, (9661), 9138 states have call predecessors, (9661), 9597 states have call successors, (9661) [2021-11-21 01:43:54,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28896 states to 28896 states and 41934 transitions. [2021-11-21 01:43:54,995 INFO L78 Accepts]: Start accepts. Automaton has 28896 states and 41934 transitions. Word has length 93 [2021-11-21 01:43:54,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:43:54,996 INFO L470 AbstractCegarLoop]: Abstraction has 28896 states and 41934 transitions. [2021-11-21 01:43:54,996 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-11-21 01:43:54,996 INFO L276 IsEmpty]: Start isEmpty. Operand 28896 states and 41934 transitions. [2021-11-21 01:43:54,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2021-11-21 01:43:54,998 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:43:54,998 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:43:54,998 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-21 01:43:54,999 INFO L402 AbstractCegarLoop]: === Iteration 9 === 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)] === [2021-11-21 01:43:54,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:43:54,999 INFO L85 PathProgramCache]: Analyzing trace with hash 1203807764, now seen corresponding path program 1 times [2021-11-21 01:43:54,999 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:43:55,000 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2069713395] [2021-11-21 01:43:55,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:43:55,000 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:43:55,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:43:55,541 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-21 01:43:55,541 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:43:55,542 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2069713395] [2021-11-21 01:43:55,542 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2069713395] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:43:55,542 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:43:55,542 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-21 01:43:55,542 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [860610321] [2021-11-21 01:43:55,543 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:43:55,544 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 01:43:55,544 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:43:55,544 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 01:43:55,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 01:43:55,545 INFO L87 Difference]: Start difference. First operand 28896 states and 41934 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, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-11-21 01:43:58,631 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:44:01,530 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:44:03,567 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:44:05,078 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:44:08,283 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.98s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:44:13,844 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:44:16,358 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:44:17,890 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.53s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:44:19,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:44:19,606 INFO L93 Difference]: Finished difference Result 29034 states and 42071 transitions. [2021-11-21 01:44:19,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-21 01:44:19,606 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, (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 82 [2021-11-21 01:44:19,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:44:19,697 INFO L225 Difference]: With dead ends: 29034 [2021-11-21 01:44:19,697 INFO L226 Difference]: Without dead ends: 29032 [2021-11-21 01:44:19,706 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-21 01:44:19,707 INFO L933 BasicCegarLoop]: 4572 mSDtfsCounter, 3612 mSDsluCounter, 8974 mSDsCounter, 0 mSdLazyCounter, 1666 mSolverCounterSat, 1 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3614 SdHoareTripleChecker+Valid, 12461 SdHoareTripleChecker+Invalid, 1671 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1666 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 23.2s IncrementalHoareTripleChecker+Time [2021-11-21 01:44:19,707 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3614 Valid, 12461 Invalid, 1671 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1666 Invalid, 4 Unknown, 0 Unchecked, 23.2s Time] [2021-11-21 01:44:19,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29032 states. [2021-11-21 01:44:21,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29032 to 28910. [2021-11-21 01:44:21,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28910 states, 17382 states have (on average 1.304970659302727) internal successors, (22683), 18346 states have internal predecessors, (22683), 9603 states have call successors, (9603), 1895 states have call predecessors, (9603), 1892 states have return successors, (9665), 9142 states have call predecessors, (9665), 9601 states have call successors, (9665) [2021-11-21 01:44:21,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28910 states to 28910 states and 41951 transitions. [2021-11-21 01:44:21,193 INFO L78 Accepts]: Start accepts. Automaton has 28910 states and 41951 transitions. Word has length 82 [2021-11-21 01:44:21,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:44:21,193 INFO L470 AbstractCegarLoop]: Abstraction has 28910 states and 41951 transitions. [2021-11-21 01:44:21,193 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-11-21 01:44:21,193 INFO L276 IsEmpty]: Start isEmpty. Operand 28910 states and 41951 transitions. [2021-11-21 01:44:21,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2021-11-21 01:44:21,195 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:44:21,196 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:44:21,197 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-21 01:44:21,197 INFO L402 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)] === [2021-11-21 01:44:21,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:44:21,197 INFO L85 PathProgramCache]: Analyzing trace with hash 1513208983, now seen corresponding path program 1 times [2021-11-21 01:44:21,198 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:44:21,198 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1028195519] [2021-11-21 01:44:21,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:44:21,198 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:44:21,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:44:21,520 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-21 01:44:21,520 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:44:21,520 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1028195519] [2021-11-21 01:44:21,521 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1028195519] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:44:21,521 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:44:21,521 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-21 01:44:21,521 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1298465845] [2021-11-21 01:44:21,521 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:44:21,522 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 01:44:21,522 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:44:21,522 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 01:44:21,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 01:44:21,523 INFO L87 Difference]: Start difference. First operand 28910 states and 41951 transitions. Second operand has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-11-21 01:44:24,677 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:44:35,371 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:44:37,879 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.89s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:44:39,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:44:39,483 INFO L93 Difference]: Finished difference Result 29728 states and 42989 transitions. [2021-11-21 01:44:39,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-21 01:44:39,483 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 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 84 [2021-11-21 01:44:39,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:44:39,574 INFO L225 Difference]: With dead ends: 29728 [2021-11-21 01:44:39,574 INFO L226 Difference]: Without dead ends: 29726 [2021-11-21 01:44:39,588 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-21 01:44:39,589 INFO L933 BasicCegarLoop]: 4575 mSDtfsCounter, 3592 mSDsluCounter, 8978 mSDsCounter, 0 mSdLazyCounter, 1666 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3596 SdHoareTripleChecker+Valid, 12471 SdHoareTripleChecker+Invalid, 1669 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1666 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.1s IncrementalHoareTripleChecker+Time [2021-11-21 01:44:39,590 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3596 Valid, 12471 Invalid, 1669 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1666 Invalid, 2 Unknown, 0 Unchecked, 17.1s Time] [2021-11-21 01:44:39,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29726 states. [2021-11-21 01:44:40,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29726 to 29590. [2021-11-21 01:44:40,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29590 states, 17798 states have (on average 1.304079110012361) internal successors, (23210), 18778 states have internal predecessors, (23210), 9787 states have call successors, (9787), 1975 states have call predecessors, (9787), 1972 states have return successors, (9849), 9318 states have call predecessors, (9849), 9785 states have call successors, (9849) [2021-11-21 01:44:41,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29590 states to 29590 states and 42846 transitions. [2021-11-21 01:44:41,105 INFO L78 Accepts]: Start accepts. Automaton has 29590 states and 42846 transitions. Word has length 84 [2021-11-21 01:44:41,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:44:41,105 INFO L470 AbstractCegarLoop]: Abstraction has 29590 states and 42846 transitions. [2021-11-21 01:44:41,105 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-11-21 01:44:41,105 INFO L276 IsEmpty]: Start isEmpty. Operand 29590 states and 42846 transitions. [2021-11-21 01:44:41,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2021-11-21 01:44:41,107 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:44:41,107 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 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] [2021-11-21 01:44:41,107 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-21 01:44:41,107 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr4ASSERT_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)] === [2021-11-21 01:44:41,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:44:41,108 INFO L85 PathProgramCache]: Analyzing trace with hash -269451231, now seen corresponding path program 1 times [2021-11-21 01:44:41,108 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:44:41,108 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1958475032] [2021-11-21 01:44:41,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:44:41,108 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:44:41,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:44:41,470 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2021-11-21 01:44:41,471 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:44:41,471 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1958475032] [2021-11-21 01:44:41,471 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1958475032] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-21 01:44:41,471 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1741006508] [2021-11-21 01:44:41,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:44:41,472 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 01:44:41,472 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_479fef81-d573-407e-9eaa-f8c3278a1388/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 01:44:41,479 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_479fef81-d573-407e-9eaa-f8c3278a1388/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 01:44:41,490 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_479fef81-d573-407e-9eaa-f8c3278a1388/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-21 01:44:43,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:44:43,507 INFO L263 TraceCheckSpWp]: Trace formula consists of 7455 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-21 01:44:43,521 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 01:44:43,755 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2021-11-21 01:44:43,756 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-21 01:44:43,756 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1741006508] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:44:43,756 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-21 01:44:43,756 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2021-11-21 01:44:43,756 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1173741012] [2021-11-21 01:44:43,756 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:44:43,757 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 01:44:43,757 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:44:43,757 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 01:44:43,758 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-11-21 01:44:43,758 INFO L87 Difference]: Start difference. First operand 29590 states and 42846 transitions. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2021-11-21 01:44:46,382 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:44:49,286 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:44:53,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:44:53,068 INFO L93 Difference]: Finished difference Result 59808 states and 86481 transitions. [2021-11-21 01:44:53,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 01:44:53,069 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 98 [2021-11-21 01:44:53,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:44:53,179 INFO L225 Difference]: With dead ends: 59808 [2021-11-21 01:44:53,179 INFO L226 Difference]: Without dead ends: 30236 [2021-11-21 01:44:53,263 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-11-21 01:44:53,264 INFO L933 BasicCegarLoop]: 3878 mSDtfsCounter, 3615 mSDsluCounter, 1235 mSDsCounter, 0 mSdLazyCounter, 756 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3615 SdHoareTripleChecker+Valid, 4929 SdHoareTripleChecker+Invalid, 758 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 756 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.1s IncrementalHoareTripleChecker+Time [2021-11-21 01:44:53,265 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3615 Valid, 4929 Invalid, 758 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 756 Invalid, 1 Unknown, 0 Unchecked, 8.1s Time] [2021-11-21 01:44:53,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30236 states. [2021-11-21 01:44:54,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30236 to 30186. [2021-11-21 01:44:54,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30186 states, 18158 states have (on average 1.303337371957264) internal successors, (23666), 19158 states have internal predecessors, (23666), 9943 states have call successors, (9943), 2055 states have call predecessors, (9943), 2052 states have return successors, (9997), 9458 states have call predecessors, (9997), 9941 states have call successors, (9997) [2021-11-21 01:44:54,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30186 states to 30186 states and 43606 transitions. [2021-11-21 01:44:54,934 INFO L78 Accepts]: Start accepts. Automaton has 30186 states and 43606 transitions. Word has length 98 [2021-11-21 01:44:54,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:44:54,935 INFO L470 AbstractCegarLoop]: Abstraction has 30186 states and 43606 transitions. [2021-11-21 01:44:54,935 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2021-11-21 01:44:54,936 INFO L276 IsEmpty]: Start isEmpty. Operand 30186 states and 43606 transitions. [2021-11-21 01:44:54,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2021-11-21 01:44:54,937 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:44:54,938 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:44:54,969 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_479fef81-d573-407e-9eaa-f8c3278a1388/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-21 01:44:55,140 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_479fef81-d573-407e-9eaa-f8c3278a1388/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2021-11-21 01:44:55,140 INFO L402 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)] === [2021-11-21 01:44:55,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:44:55,141 INFO L85 PathProgramCache]: Analyzing trace with hash 1820455625, now seen corresponding path program 1 times [2021-11-21 01:44:55,141 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:44:55,141 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1899398206] [2021-11-21 01:44:55,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:44:55,142 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:44:55,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:44:55,462 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-21 01:44:55,462 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:44:55,462 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1899398206] [2021-11-21 01:44:55,463 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1899398206] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:44:55,463 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:44:55,463 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-21 01:44:55,463 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1006744768] [2021-11-21 01:44:55,463 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:44:55,464 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 01:44:55,464 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:44:55,464 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 01:44:55,464 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 01:44:55,465 INFO L87 Difference]: Start difference. First operand 30186 states and 43606 transitions. Second operand has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2021-11-21 01:44:58,537 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:45:03,832 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:45:05,474 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:45:15,278 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:45:17,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:45:17,361 INFO L93 Difference]: Finished difference Result 30304 states and 43722 transitions. [2021-11-21 01:45:17,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-21 01:45:17,361 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 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 89 [2021-11-21 01:45:17,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:45:17,615 INFO L225 Difference]: With dead ends: 30304 [2021-11-21 01:45:17,615 INFO L226 Difference]: Without dead ends: 30302 [2021-11-21 01:45:17,625 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-21 01:45:17,626 INFO L933 BasicCegarLoop]: 4572 mSDtfsCounter, 3594 mSDsluCounter, 8976 mSDsCounter, 0 mSdLazyCounter, 1665 mSolverCounterSat, 1 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3596 SdHoareTripleChecker+Valid, 12465 SdHoareTripleChecker+Invalid, 1669 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1665 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.7s IncrementalHoareTripleChecker+Time [2021-11-21 01:45:17,626 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3596 Valid, 12465 Invalid, 1669 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1665 Invalid, 3 Unknown, 0 Unchecked, 20.7s Time] [2021-11-21 01:45:17,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30302 states. [2021-11-21 01:45:19,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30302 to 30192. [2021-11-21 01:45:19,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30192 states, 18161 states have (on average 1.303287263917185) internal successors, (23669), 19161 states have internal predecessors, (23669), 9945 states have call successors, (9945), 2056 states have call predecessors, (9945), 2053 states have return successors, (9999), 9460 states have call predecessors, (9999), 9943 states have call successors, (9999) [2021-11-21 01:45:19,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30192 states to 30192 states and 43613 transitions. [2021-11-21 01:45:19,403 INFO L78 Accepts]: Start accepts. Automaton has 30192 states and 43613 transitions. Word has length 89 [2021-11-21 01:45:19,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:45:19,403 INFO L470 AbstractCegarLoop]: Abstraction has 30192 states and 43613 transitions. [2021-11-21 01:45:19,403 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2021-11-21 01:45:19,403 INFO L276 IsEmpty]: Start isEmpty. Operand 30192 states and 43613 transitions. [2021-11-21 01:45:19,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2021-11-21 01:45:19,405 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:45:19,405 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:45:19,405 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-11-21 01:45:19,405 INFO L402 AbstractCegarLoop]: === Iteration 13 === 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)] === [2021-11-21 01:45:19,406 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:45:19,406 INFO L85 PathProgramCache]: Analyzing trace with hash 309865313, now seen corresponding path program 1 times [2021-11-21 01:45:19,406 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:45:19,406 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [802539446] [2021-11-21 01:45:19,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:45:19,407 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:45:19,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:45:19,797 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 59 trivial. 0 not checked. [2021-11-21 01:45:19,797 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:45:19,797 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [802539446] [2021-11-21 01:45:19,797 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [802539446] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:45:19,798 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:45:19,798 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-21 01:45:19,798 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1418322246] [2021-11-21 01:45:19,798 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:45:19,799 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-21 01:45:19,799 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:45:19,799 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-21 01:45:19,799 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-21 01:45:19,800 INFO L87 Difference]: Start difference. First operand 30192 states and 43613 transitions. Second operand has 5 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 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) [2021-11-21 01:45:23,723 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:45:29,058 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:45:33,952 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:45:36,008 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:45:43,942 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:45:45,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:45:45,140 INFO L93 Difference]: Finished difference Result 37448 states and 53350 transitions. [2021-11-21 01:45:45,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-21 01:45:45,141 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 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 98 [2021-11-21 01:45:45,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:45:45,255 INFO L225 Difference]: With dead ends: 37448 [2021-11-21 01:45:45,255 INFO L226 Difference]: Without dead ends: 37446 [2021-11-21 01:45:45,268 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-21 01:45:45,269 INFO L933 BasicCegarLoop]: 3955 mSDtfsCounter, 2002 mSDsluCounter, 12423 mSDsCounter, 0 mSdLazyCounter, 2114 mSolverCounterSat, 2 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2003 SdHoareTripleChecker+Valid, 14827 SdHoareTripleChecker+Invalid, 2119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 2114 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 24.2s IncrementalHoareTripleChecker+Time [2021-11-21 01:45:45,270 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2003 Valid, 14827 Invalid, 2119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 2114 Invalid, 3 Unknown, 0 Unchecked, 24.2s Time] [2021-11-21 01:45:45,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37446 states. [2021-11-21 01:45:47,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37446 to 37208. [2021-11-21 01:45:47,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37208 states, 22380 states have (on average 1.2958445040214477) internal successors, (29001), 23588 states have internal predecessors, (29001), 11988 states have call successors, (11988), 2838 states have call predecessors, (11988), 2807 states have return successors, (12085), 11342 states have call predecessors, (12085), 11986 states have call successors, (12085) [2021-11-21 01:45:47,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37208 states to 37208 states and 53074 transitions. [2021-11-21 01:45:47,303 INFO L78 Accepts]: Start accepts. Automaton has 37208 states and 53074 transitions. Word has length 98 [2021-11-21 01:45:47,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:45:47,304 INFO L470 AbstractCegarLoop]: Abstraction has 37208 states and 53074 transitions. [2021-11-21 01:45:47,304 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 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) [2021-11-21 01:45:47,304 INFO L276 IsEmpty]: Start isEmpty. Operand 37208 states and 53074 transitions. [2021-11-21 01:45:47,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-11-21 01:45:47,307 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:45:47,307 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:45:47,307 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-11-21 01:45:47,307 INFO L402 AbstractCegarLoop]: === Iteration 14 === 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)] === [2021-11-21 01:45:47,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:45:47,308 INFO L85 PathProgramCache]: Analyzing trace with hash 197801777, now seen corresponding path program 1 times [2021-11-21 01:45:47,308 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:45:47,308 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [983322863] [2021-11-21 01:45:47,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:45:47,309 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:45:47,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:45:47,592 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-21 01:45:47,593 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:45:47,593 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [983322863] [2021-11-21 01:45:47,593 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [983322863] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:45:47,593 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:45:47,593 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-21 01:45:47,593 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1820143321] [2021-11-21 01:45:47,594 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:45:47,595 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 01:45:47,595 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:45:47,595 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 01:45:47,595 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 01:45:47,596 INFO L87 Difference]: Start difference. First operand 37208 states and 53074 transitions. Second operand has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-11-21 01:45:50,746 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:45:53,984 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:45:57,591 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.73s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:46:06,835 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:46:07,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:46:07,266 INFO L93 Difference]: Finished difference Result 37316 states and 53180 transitions. [2021-11-21 01:46:07,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-21 01:46:07,266 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 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 94 [2021-11-21 01:46:07,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:46:07,462 INFO L225 Difference]: With dead ends: 37316 [2021-11-21 01:46:07,462 INFO L226 Difference]: Without dead ends: 37314 [2021-11-21 01:46:07,472 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-21 01:46:07,473 INFO L933 BasicCegarLoop]: 4609 mSDtfsCounter, 3589 mSDsluCounter, 9022 mSDsCounter, 0 mSdLazyCounter, 1684 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3591 SdHoareTripleChecker+Valid, 12539 SdHoareTripleChecker+Invalid, 1687 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1684 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.5s IncrementalHoareTripleChecker+Time [2021-11-21 01:46:07,473 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3591 Valid, 12539 Invalid, 1687 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1684 Invalid, 2 Unknown, 0 Unchecked, 18.5s Time] [2021-11-21 01:46:07,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37314 states. [2021-11-21 01:46:08,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37314 to 37214. [2021-11-21 01:46:09,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37214 states, 22383 states have (on average 1.2958048518965286) internal successors, (29004), 23591 states have internal predecessors, (29004), 11990 states have call successors, (11990), 2839 states have call predecessors, (11990), 2808 states have return successors, (12087), 11344 states have call predecessors, (12087), 11988 states have call successors, (12087) [2021-11-21 01:46:09,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37214 states to 37214 states and 53081 transitions. [2021-11-21 01:46:09,153 INFO L78 Accepts]: Start accepts. Automaton has 37214 states and 53081 transitions. Word has length 94 [2021-11-21 01:46:09,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:46:09,154 INFO L470 AbstractCegarLoop]: Abstraction has 37214 states and 53081 transitions. [2021-11-21 01:46:09,154 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-11-21 01:46:09,154 INFO L276 IsEmpty]: Start isEmpty. Operand 37214 states and 53081 transitions. [2021-11-21 01:46:09,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2021-11-21 01:46:09,156 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:46:09,156 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:46:09,156 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-11-21 01:46:09,156 INFO L402 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)] === [2021-11-21 01:46:09,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:46:09,157 INFO L85 PathProgramCache]: Analyzing trace with hash 464173663, now seen corresponding path program 1 times [2021-11-21 01:46:09,157 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:46:09,157 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [822378175] [2021-11-21 01:46:09,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:46:09,157 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:46:09,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:46:09,465 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-21 01:46:09,465 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:46:09,466 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [822378175] [2021-11-21 01:46:09,466 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [822378175] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:46:09,466 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:46:09,466 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-21 01:46:09,468 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [346874669] [2021-11-21 01:46:09,469 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:46:09,469 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 01:46:09,469 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:46:09,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 01:46:09,470 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 01:46:09,470 INFO L87 Difference]: Start difference. First operand 37214 states and 53081 transitions. Second operand has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-11-21 01:46:12,992 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:46:19,448 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:46:26,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:46:26,421 INFO L93 Difference]: Finished difference Result 37314 states and 53178 transitions. [2021-11-21 01:46:26,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-21 01:46:26,422 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 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 99 [2021-11-21 01:46:26,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:46:26,561 INFO L225 Difference]: With dead ends: 37314 [2021-11-21 01:46:26,562 INFO L226 Difference]: Without dead ends: 37312 [2021-11-21 01:46:26,581 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-21 01:46:26,583 INFO L933 BasicCegarLoop]: 4609 mSDtfsCounter, 3586 mSDsluCounter, 9022 mSDsCounter, 0 mSdLazyCounter, 1684 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3588 SdHoareTripleChecker+Valid, 12539 SdHoareTripleChecker+Invalid, 1687 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1684 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.6s IncrementalHoareTripleChecker+Time [2021-11-21 01:46:26,584 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3588 Valid, 12539 Invalid, 1687 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1684 Invalid, 2 Unknown, 0 Unchecked, 15.6s Time] [2021-11-21 01:46:26,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37312 states. [2021-11-21 01:46:28,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37312 to 37220. [2021-11-21 01:46:28,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37220 states, 22386 states have (on average 1.2957652103993567) internal successors, (29007), 23594 states have internal predecessors, (29007), 11992 states have call successors, (11992), 2840 states have call predecessors, (11992), 2809 states have return successors, (12089), 11346 states have call predecessors, (12089), 11990 states have call successors, (12089) [2021-11-21 01:46:29,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37220 states to 37220 states and 53088 transitions. [2021-11-21 01:46:29,097 INFO L78 Accepts]: Start accepts. Automaton has 37220 states and 53088 transitions. Word has length 99 [2021-11-21 01:46:29,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:46:29,098 INFO L470 AbstractCegarLoop]: Abstraction has 37220 states and 53088 transitions. [2021-11-21 01:46:29,098 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-11-21 01:46:29,098 INFO L276 IsEmpty]: Start isEmpty. Operand 37220 states and 53088 transitions. [2021-11-21 01:46:29,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2021-11-21 01:46:29,100 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:46:29,101 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 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] [2021-11-21 01:46:29,101 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-11-21 01:46:29,101 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2021-11-21 01:46:29,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:46:29,102 INFO L85 PathProgramCache]: Analyzing trace with hash 137168764, now seen corresponding path program 1 times [2021-11-21 01:46:29,102 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:46:29,102 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1383876842] [2021-11-21 01:46:29,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:46:29,102 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:46:29,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:46:29,453 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 115 trivial. 0 not checked. [2021-11-21 01:46:29,453 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:46:29,453 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1383876842] [2021-11-21 01:46:29,454 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1383876842] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:46:29,454 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:46:29,454 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-21 01:46:29,454 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [996719886] [2021-11-21 01:46:29,454 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:46:29,455 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 01:46:29,455 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:46:29,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 01:46:29,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 01:46:29,456 INFO L87 Difference]: Start difference. First operand 37220 states and 53088 transitions. Second operand has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 3 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2021-11-21 01:46:32,467 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:46:35,687 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:46:44,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:46:44,427 INFO L93 Difference]: Finished difference Result 91923 states and 131274 transitions. [2021-11-21 01:46:44,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 01:46:44,428 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 3 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 116 [2021-11-21 01:46:44,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:46:44,629 INFO L225 Difference]: With dead ends: 91923 [2021-11-21 01:46:44,629 INFO L226 Difference]: Without dead ends: 54721 [2021-11-21 01:46:44,843 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 01:46:44,844 INFO L933 BasicCegarLoop]: 4743 mSDtfsCounter, 3453 mSDsluCounter, 3823 mSDsCounter, 0 mSdLazyCounter, 1121 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3453 SdHoareTripleChecker+Valid, 8064 SdHoareTripleChecker+Invalid, 1122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1121 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.5s IncrementalHoareTripleChecker+Time [2021-11-21 01:46:44,845 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3453 Valid, 8064 Invalid, 1122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1121 Invalid, 1 Unknown, 0 Unchecked, 12.5s Time] [2021-11-21 01:46:44,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54721 states. [2021-11-21 01:46:47,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54721 to 47476. [2021-11-21 01:46:47,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47476 states, 28540 states have (on average 1.2966012613875262) internal successors, (37005), 30082 states have internal predecessors, (37005), 15346 states have call successors, (15346), 3590 states have call predecessors, (15346), 3557 states have return successors, (15459), 14528 states have call predecessors, (15459), 15344 states have call successors, (15459) [2021-11-21 01:46:47,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47476 states to 47476 states and 67810 transitions. [2021-11-21 01:46:47,870 INFO L78 Accepts]: Start accepts. Automaton has 47476 states and 67810 transitions. Word has length 116 [2021-11-21 01:46:47,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:46:47,871 INFO L470 AbstractCegarLoop]: Abstraction has 47476 states and 67810 transitions. [2021-11-21 01:46:47,871 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 3 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2021-11-21 01:46:47,872 INFO L276 IsEmpty]: Start isEmpty. Operand 47476 states and 67810 transitions. [2021-11-21 01:46:47,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2021-11-21 01:46:47,874 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:46:47,875 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:46:47,875 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-11-21 01:46:47,875 INFO L402 AbstractCegarLoop]: === Iteration 17 === 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)] === [2021-11-21 01:46:47,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:46:47,876 INFO L85 PathProgramCache]: Analyzing trace with hash -1028633140, now seen corresponding path program 1 times [2021-11-21 01:46:47,876 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:46:47,876 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1252073730] [2021-11-21 01:46:47,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:46:47,876 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:46:47,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:46:48,467 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-21 01:46:48,467 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:46:48,467 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1252073730] [2021-11-21 01:46:48,468 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1252073730] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:46:48,468 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:46:48,468 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-21 01:46:48,468 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [512299785] [2021-11-21 01:46:48,468 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:46:48,470 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 01:46:48,470 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:46:48,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 01:46:48,470 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 01:46:48,471 INFO L87 Difference]: Start difference. First operand 47476 states and 67810 transitions. Second operand has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-11-21 01:46:51,686 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:46:55,711 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.49s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:46:59,260 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:47:07,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:47:07,616 INFO L93 Difference]: Finished difference Result 47568 states and 67898 transitions. [2021-11-21 01:47:07,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-21 01:47:07,617 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 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 104 [2021-11-21 01:47:07,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:47:07,768 INFO L225 Difference]: With dead ends: 47568 [2021-11-21 01:47:07,768 INFO L226 Difference]: Without dead ends: 47566 [2021-11-21 01:47:07,785 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-21 01:47:07,785 INFO L933 BasicCegarLoop]: 4503 mSDtfsCounter, 3583 mSDsluCounter, 8894 mSDsCounter, 0 mSdLazyCounter, 1641 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3585 SdHoareTripleChecker+Valid, 12327 SdHoareTripleChecker+Invalid, 1643 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1641 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.3s IncrementalHoareTripleChecker+Time [2021-11-21 01:47:07,786 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3585 Valid, 12327 Invalid, 1643 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1641 Invalid, 1 Unknown, 0 Unchecked, 17.3s Time] [2021-11-21 01:47:07,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47566 states. [2021-11-21 01:47:10,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47566 to 47482. [2021-11-21 01:47:10,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47482 states, 28543 states have (on average 1.2965700872368007) internal successors, (37008), 30085 states have internal predecessors, (37008), 15348 states have call successors, (15348), 3591 states have call predecessors, (15348), 3558 states have return successors, (15461), 14530 states have call predecessors, (15461), 15346 states have call successors, (15461) [2021-11-21 01:47:10,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47482 states to 47482 states and 67817 transitions. [2021-11-21 01:47:10,787 INFO L78 Accepts]: Start accepts. Automaton has 47482 states and 67817 transitions. Word has length 104 [2021-11-21 01:47:10,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:47:10,788 INFO L470 AbstractCegarLoop]: Abstraction has 47482 states and 67817 transitions. [2021-11-21 01:47:10,788 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-11-21 01:47:10,789 INFO L276 IsEmpty]: Start isEmpty. Operand 47482 states and 67817 transitions. [2021-11-21 01:47:10,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2021-11-21 01:47:10,792 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:47:10,792 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 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] [2021-11-21 01:47:10,792 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-11-21 01:47:10,792 INFO L402 AbstractCegarLoop]: === Iteration 18 === 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)] === [2021-11-21 01:47:10,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:47:10,793 INFO L85 PathProgramCache]: Analyzing trace with hash -112274403, now seen corresponding path program 1 times [2021-11-21 01:47:10,793 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:47:10,793 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1083858900] [2021-11-21 01:47:10,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:47:10,794 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:47:11,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:47:11,261 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 115 trivial. 0 not checked. [2021-11-21 01:47:11,261 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:47:11,261 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1083858900] [2021-11-21 01:47:11,261 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1083858900] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:47:11,262 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:47:11,262 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-21 01:47:11,262 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1597943724] [2021-11-21 01:47:11,262 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:47:11,263 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-21 01:47:11,263 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:47:11,263 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-21 01:47:11,263 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-21 01:47:11,264 INFO L87 Difference]: Start difference. First operand 47482 states and 67817 transitions. Second operand has 6 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (19), 3 states have call predecessors, (19), 2 states have call successors, (19) [2021-11-21 01:47:16,416 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:47:23,210 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:47:27,623 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:47:29,521 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:47:41,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:47:41,468 INFO L93 Difference]: Finished difference Result 60483 states and 86264 transitions. [2021-11-21 01:47:41,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-21 01:47:41,468 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (19), 3 states have call predecessors, (19), 2 states have call successors, (19) Word has length 121 [2021-11-21 01:47:41,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:47:41,697 INFO L225 Difference]: With dead ends: 60483 [2021-11-21 01:47:41,697 INFO L226 Difference]: Without dead ends: 60481 [2021-11-21 01:47:41,720 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-11-21 01:47:41,721 INFO L933 BasicCegarLoop]: 4534 mSDtfsCounter, 3583 mSDsluCounter, 17433 mSDsCounter, 0 mSdLazyCounter, 4438 mSolverCounterSat, 3 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 25.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3587 SdHoareTripleChecker+Valid, 19780 SdHoareTripleChecker+Invalid, 4443 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4438 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 27.9s IncrementalHoareTripleChecker+Time [2021-11-21 01:47:41,721 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3587 Valid, 19780 Invalid, 4443 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 4438 Invalid, 2 Unknown, 0 Unchecked, 27.9s Time] [2021-11-21 01:47:41,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60481 states. [2021-11-21 01:47:45,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60481 to 60233. [2021-11-21 01:47:45,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60233 states, 36152 states have (on average 1.2938979862801505) internal successors, (46777), 38070 states have internal predecessors, (46777), 19489 states have call successors, (19489), 4592 states have call predecessors, (19489), 4559 states have return successors, (19690), 18475 states have call predecessors, (19690), 19487 states have call successors, (19690) [2021-11-21 01:47:45,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60233 states to 60233 states and 85956 transitions. [2021-11-21 01:47:45,503 INFO L78 Accepts]: Start accepts. Automaton has 60233 states and 85956 transitions. Word has length 121 [2021-11-21 01:47:45,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:47:45,503 INFO L470 AbstractCegarLoop]: Abstraction has 60233 states and 85956 transitions. [2021-11-21 01:47:45,503 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (19), 3 states have call predecessors, (19), 2 states have call successors, (19) [2021-11-21 01:47:45,503 INFO L276 IsEmpty]: Start isEmpty. Operand 60233 states and 85956 transitions. [2021-11-21 01:47:45,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2021-11-21 01:47:45,505 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:47:45,506 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:47:45,506 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-11-21 01:47:45,506 INFO L402 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)] === [2021-11-21 01:47:45,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:47:45,507 INFO L85 PathProgramCache]: Analyzing trace with hash 1298797885, now seen corresponding path program 1 times [2021-11-21 01:47:45,507 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:47:45,507 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [44985698] [2021-11-21 01:47:45,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:47:45,507 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:47:45,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:47:45,785 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-21 01:47:45,785 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:47:45,785 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [44985698] [2021-11-21 01:47:45,786 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [44985698] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:47:45,786 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:47:45,786 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-21 01:47:45,786 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1908349513] [2021-11-21 01:47:45,786 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:47:45,788 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 01:47:45,789 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:47:45,789 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 01:47:45,789 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 01:47:45,789 INFO L87 Difference]: Start difference. First operand 60233 states and 85956 transitions. Second operand has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-11-21 01:47:48,767 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:47:52,657 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.60s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:47:55,637 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.73s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:47:57,064 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:48:04,550 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:48:07,021 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:48:11,281 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:48:12,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:48:12,228 INFO L93 Difference]: Finished difference Result 60317 states and 86035 transitions. [2021-11-21 01:48:12,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-21 01:48:12,228 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (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 109 [2021-11-21 01:48:12,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:48:12,430 INFO L225 Difference]: With dead ends: 60317 [2021-11-21 01:48:12,431 INFO L226 Difference]: Without dead ends: 60315 [2021-11-21 01:48:12,455 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-21 01:48:12,455 INFO L933 BasicCegarLoop]: 4505 mSDtfsCounter, 3580 mSDsluCounter, 8898 mSDsCounter, 0 mSdLazyCounter, 1642 mSolverCounterSat, 1 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3582 SdHoareTripleChecker+Valid, 12331 SdHoareTripleChecker+Invalid, 1646 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1642 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 24.2s IncrementalHoareTripleChecker+Time [2021-11-21 01:48:12,456 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3582 Valid, 12331 Invalid, 1646 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1642 Invalid, 3 Unknown, 0 Unchecked, 24.2s Time] [2021-11-21 01:48:12,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60315 states. [2021-11-21 01:48:15,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60315 to 60239. [2021-11-21 01:48:15,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60239 states, 36155 states have (on average 1.2938735997787305) internal successors, (46780), 38073 states have internal predecessors, (46780), 19491 states have call successors, (19491), 4593 states have call predecessors, (19491), 4560 states have return successors, (19692), 18477 states have call predecessors, (19692), 19489 states have call successors, (19692) [2021-11-21 01:48:16,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60239 states to 60239 states and 85963 transitions. [2021-11-21 01:48:16,004 INFO L78 Accepts]: Start accepts. Automaton has 60239 states and 85963 transitions. Word has length 109 [2021-11-21 01:48:16,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:48:16,004 INFO L470 AbstractCegarLoop]: Abstraction has 60239 states and 85963 transitions. [2021-11-21 01:48:16,004 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-11-21 01:48:16,005 INFO L276 IsEmpty]: Start isEmpty. Operand 60239 states and 85963 transitions. [2021-11-21 01:48:16,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2021-11-21 01:48:16,007 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:48:16,007 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 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] [2021-11-21 01:48:16,008 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-11-21 01:48:16,008 INFO L402 AbstractCegarLoop]: === Iteration 20 === 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)] === [2021-11-21 01:48:16,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:48:16,009 INFO L85 PathProgramCache]: Analyzing trace with hash 1296141979, now seen corresponding path program 1 times [2021-11-21 01:48:16,009 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:48:16,009 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1005010176] [2021-11-21 01:48:16,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:48:16,009 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:48:16,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:48:16,310 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 115 trivial. 0 not checked. [2021-11-21 01:48:16,310 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:48:16,311 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1005010176] [2021-11-21 01:48:16,311 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1005010176] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:48:16,311 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:48:16,311 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-21 01:48:16,311 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [282091408] [2021-11-21 01:48:16,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:48:16,312 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 01:48:16,312 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:48:16,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 01:48:16,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 01:48:16,313 INFO L87 Difference]: Start difference. First operand 60239 states and 85963 transitions. Second operand has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-11-21 01:48:18,594 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:48:25,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:48:25,723 INFO L93 Difference]: Finished difference Result 120322 states and 172197 transitions. [2021-11-21 01:48:25,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 01:48:25,723 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 124 [2021-11-21 01:48:25,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:48:26,175 INFO L225 Difference]: With dead ends: 120322 [2021-11-21 01:48:26,176 INFO L226 Difference]: Without dead ends: 60101 [2021-11-21 01:48:26,401 INFO L932 BasicCegarLoop]: 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 [2021-11-21 01:48:26,402 INFO L933 BasicCegarLoop]: 3343 mSDtfsCounter, 3804 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 509 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3804 SdHoareTripleChecker+Valid, 3343 SdHoareTripleChecker+Invalid, 509 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 509 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2021-11-21 01:48:26,402 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3804 Valid, 3343 Invalid, 509 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 509 Invalid, 0 Unknown, 0 Unchecked, 6.4s Time] [2021-11-21 01:48:26,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60101 states. [2021-11-21 01:48:29,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60101 to 60101. [2021-11-21 01:48:29,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60101 states, 36018 states have (on average 1.2912155033594315) internal successors, (46507), 37935 states have internal predecessors, (46507), 19491 states have call successors, (19491), 4593 states have call predecessors, (19491), 4560 states have return successors, (19692), 18477 states have call predecessors, (19692), 19489 states have call successors, (19692) [2021-11-21 01:48:30,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60101 states to 60101 states and 85690 transitions. [2021-11-21 01:48:30,134 INFO L78 Accepts]: Start accepts. Automaton has 60101 states and 85690 transitions. Word has length 124 [2021-11-21 01:48:30,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:48:30,135 INFO L470 AbstractCegarLoop]: Abstraction has 60101 states and 85690 transitions. [2021-11-21 01:48:30,135 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-11-21 01:48:30,135 INFO L276 IsEmpty]: Start isEmpty. Operand 60101 states and 85690 transitions. [2021-11-21 01:48:30,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-11-21 01:48:30,139 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:48:30,139 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:48:30,139 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-11-21 01:48:30,140 INFO L402 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)] === [2021-11-21 01:48:30,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:48:30,140 INFO L85 PathProgramCache]: Analyzing trace with hash 961932891, now seen corresponding path program 1 times [2021-11-21 01:48:30,141 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:48:30,141 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1944689287] [2021-11-21 01:48:30,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:48:30,141 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:48:30,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:48:30,420 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-21 01:48:30,421 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:48:30,421 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1944689287] [2021-11-21 01:48:30,421 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1944689287] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:48:30,421 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:48:30,421 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-21 01:48:30,421 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [565590163] [2021-11-21 01:48:30,422 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:48:30,422 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 01:48:30,422 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:48:30,423 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 01:48:30,423 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 01:48:30,423 INFO L87 Difference]: Start difference. First operand 60101 states and 85690 transitions. Second operand has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2021-11-21 01:48:33,571 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:48:38,133 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:48:41,216 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:48:47,737 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.66s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:48:51,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:48:51,099 INFO L93 Difference]: Finished difference Result 60223 states and 85811 transitions. [2021-11-21 01:48:51,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-21 01:48:51,100 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 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 114 [2021-11-21 01:48:51,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:48:51,358 INFO L225 Difference]: With dead ends: 60223 [2021-11-21 01:48:51,358 INFO L226 Difference]: Without dead ends: 60221 [2021-11-21 01:48:51,393 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-21 01:48:51,394 INFO L933 BasicCegarLoop]: 4503 mSDtfsCounter, 3562 mSDsluCounter, 8887 mSDsCounter, 0 mSdLazyCounter, 1637 mSolverCounterSat, 1 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3566 SdHoareTripleChecker+Valid, 12322 SdHoareTripleChecker+Invalid, 1641 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1637 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.4s IncrementalHoareTripleChecker+Time [2021-11-21 01:48:51,394 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3566 Valid, 12322 Invalid, 1641 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1637 Invalid, 3 Unknown, 0 Unchecked, 18.4s Time] [2021-11-21 01:48:51,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60221 states.