./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5e519f3a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a189b0d-bc22-4033-b9a0-055d2d94c153/bin/utaipan-7li7fVZpFI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a189b0d-bc22-4033-b9a0-055d2d94c153/bin/utaipan-7li7fVZpFI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a189b0d-bc22-4033-b9a0-055d2d94c153/bin/utaipan-7li7fVZpFI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a189b0d-bc22-4033-b9a0-055d2d94c153/bin/utaipan-7li7fVZpFI/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a189b0d-bc22-4033-b9a0-055d2d94c153/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a189b0d-bc22-4033-b9a0-055d2d94c153/bin/utaipan-7li7fVZpFI --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 44a365b0a9ab0c087a7fd95686a95a7a3d5f7a279cab683ec4e216584d2b370f --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-5e519f3 [2022-11-03 02:03:34,028 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-03 02:03:34,031 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-03 02:03:34,087 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-03 02:03:34,087 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-03 02:03:34,091 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-03 02:03:34,094 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-03 02:03:34,097 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-03 02:03:34,102 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-03 02:03:34,108 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-03 02:03:34,110 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-03 02:03:34,113 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-03 02:03:34,113 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-03 02:03:34,116 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-03 02:03:34,119 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-03 02:03:34,121 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-03 02:03:34,122 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-03 02:03:34,123 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-03 02:03:34,125 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-03 02:03:34,133 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-03 02:03:34,135 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-03 02:03:34,137 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-03 02:03:34,140 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-03 02:03:34,141 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-03 02:03:34,148 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-03 02:03:34,148 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-03 02:03:34,149 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-03 02:03:34,151 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-03 02:03:34,151 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-03 02:03:34,152 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-03 02:03:34,152 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-03 02:03:34,155 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-03 02:03:34,156 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-03 02:03:34,158 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-03 02:03:34,159 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-03 02:03:34,159 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-03 02:03:34,159 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-03 02:03:34,160 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-03 02:03:34,160 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-03 02:03:34,161 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-03 02:03:34,161 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-03 02:03:34,162 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a189b0d-bc22-4033-b9a0-055d2d94c153/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-03 02:03:34,201 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-03 02:03:34,201 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-03 02:03:34,202 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-03 02:03:34,202 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-03 02:03:34,203 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-03 02:03:34,203 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-03 02:03:34,204 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-03 02:03:34,204 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-03 02:03:34,204 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-03 02:03:34,204 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-03 02:03:34,205 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-03 02:03:34,206 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-03 02:03:34,206 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-03 02:03:34,206 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-03 02:03:34,206 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-03 02:03:34,206 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-03 02:03:34,207 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-03 02:03:34,207 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-03 02:03:34,208 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-03 02:03:34,208 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-03 02:03:34,208 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-03 02:03:34,208 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-03 02:03:34,208 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-03 02:03:34,210 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-03 02:03:34,210 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-03 02:03:34,210 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-03 02:03:34,211 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-03 02:03:34,211 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-03 02:03:34,211 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-03 02:03:34,211 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 02:03:34,212 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-03 02:03:34,212 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-03 02:03:34,212 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-03 02:03:34,213 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-03 02:03:34,213 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-03 02:03:34,213 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-03 02:03:34,213 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-03 02:03:34,213 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-03 02:03:34,214 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a189b0d-bc22-4033-b9a0-055d2d94c153/bin/utaipan-7li7fVZpFI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a189b0d-bc22-4033-b9a0-055d2d94c153/bin/utaipan-7li7fVZpFI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 44a365b0a9ab0c087a7fd95686a95a7a3d5f7a279cab683ec4e216584d2b370f [2022-11-03 02:03:34,557 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-03 02:03:34,599 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-03 02:03:34,602 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-03 02:03:34,603 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-03 02:03:34,620 INFO L275 PluginConnector]: CDTParser initialized [2022-11-03 02:03:34,622 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a189b0d-bc22-4033-b9a0-055d2d94c153/bin/utaipan-7li7fVZpFI/../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i [2022-11-03 02:03:34,693 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a189b0d-bc22-4033-b9a0-055d2d94c153/bin/utaipan-7li7fVZpFI/data/4f0f9dac5/036e5a0e6a3d4a279c4ce3cd228b04b1/FLAG4e0ef8e8b [2022-11-03 02:03:36,060 INFO L306 CDTParser]: Found 1 translation units. [2022-11-03 02:03:36,061 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a189b0d-bc22-4033-b9a0-055d2d94c153/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i [2022-11-03 02:03:36,246 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a189b0d-bc22-4033-b9a0-055d2d94c153/bin/utaipan-7li7fVZpFI/data/4f0f9dac5/036e5a0e6a3d4a279c4ce3cd228b04b1/FLAG4e0ef8e8b [2022-11-03 02:03:36,546 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a189b0d-bc22-4033-b9a0-055d2d94c153/bin/utaipan-7li7fVZpFI/data/4f0f9dac5/036e5a0e6a3d4a279c4ce3cd228b04b1 [2022-11-03 02:03:36,550 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-03 02:03:36,552 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-03 02:03:36,555 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-03 02:03:36,555 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-03 02:03:36,559 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-03 02:03:36,560 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 02:03:36" (1/1) ... [2022-11-03 02:03:36,561 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5872d99c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:03:36, skipping insertion in model container [2022-11-03 02:03:36,561 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 02:03:36" (1/1) ... [2022-11-03 02:03:36,568 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-03 02:03:36,781 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-03 02:03:46,612 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a189b0d-bc22-4033-b9a0-055d2d94c153/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[773190,773203] [2022-11-03 02:03:46,615 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a189b0d-bc22-4033-b9a0-055d2d94c153/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[773335,773348] [2022-11-03 02:03:46,615 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a189b0d-bc22-4033-b9a0-055d2d94c153/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[773481,773494] [2022-11-03 02:03:46,615 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a189b0d-bc22-4033-b9a0-055d2d94c153/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[773646,773659] [2022-11-03 02:03:46,616 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a189b0d-bc22-4033-b9a0-055d2d94c153/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[773804,773817] [2022-11-03 02:03:46,616 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a189b0d-bc22-4033-b9a0-055d2d94c153/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[773962,773975] [2022-11-03 02:03:46,617 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a189b0d-bc22-4033-b9a0-055d2d94c153/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[774120,774133] [2022-11-03 02:03:46,617 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a189b0d-bc22-4033-b9a0-055d2d94c153/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[774280,774293] [2022-11-03 02:03:46,618 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a189b0d-bc22-4033-b9a0-055d2d94c153/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[774439,774452] [2022-11-03 02:03:46,618 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a189b0d-bc22-4033-b9a0-055d2d94c153/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[774578,774591] [2022-11-03 02:03:46,619 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a189b0d-bc22-4033-b9a0-055d2d94c153/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[774720,774733] [2022-11-03 02:03:46,620 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a189b0d-bc22-4033-b9a0-055d2d94c153/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[774869,774882] [2022-11-03 02:03:46,620 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a189b0d-bc22-4033-b9a0-055d2d94c153/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[775008,775021] [2022-11-03 02:03:46,621 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a189b0d-bc22-4033-b9a0-055d2d94c153/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[775163,775176] [2022-11-03 02:03:46,621 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a189b0d-bc22-4033-b9a0-055d2d94c153/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[775323,775336] [2022-11-03 02:03:46,621 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a189b0d-bc22-4033-b9a0-055d2d94c153/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[775474,775487] [2022-11-03 02:03:46,622 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a189b0d-bc22-4033-b9a0-055d2d94c153/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[775625,775638] [2022-11-03 02:03:46,623 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a189b0d-bc22-4033-b9a0-055d2d94c153/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[775777,775790] [2022-11-03 02:03:46,623 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a189b0d-bc22-4033-b9a0-055d2d94c153/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[775926,775939] [2022-11-03 02:03:46,640 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a189b0d-bc22-4033-b9a0-055d2d94c153/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[776074,776087] [2022-11-03 02:03:46,641 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a189b0d-bc22-4033-b9a0-055d2d94c153/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[776231,776244] [2022-11-03 02:03:46,642 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a189b0d-bc22-4033-b9a0-055d2d94c153/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[776380,776393] [2022-11-03 02:03:46,642 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a189b0d-bc22-4033-b9a0-055d2d94c153/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[776536,776549] [2022-11-03 02:03:46,643 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a189b0d-bc22-4033-b9a0-055d2d94c153/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[776689,776702] [2022-11-03 02:03:46,644 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a189b0d-bc22-4033-b9a0-055d2d94c153/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[776835,776848] [2022-11-03 02:03:46,644 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a189b0d-bc22-4033-b9a0-055d2d94c153/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[776978,776991] [2022-11-03 02:03:46,645 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a189b0d-bc22-4033-b9a0-055d2d94c153/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[777130,777143] [2022-11-03 02:03:46,645 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a189b0d-bc22-4033-b9a0-055d2d94c153/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[777276,777289] [2022-11-03 02:03:46,646 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a189b0d-bc22-4033-b9a0-055d2d94c153/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[777421,777434] [2022-11-03 02:03:46,646 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a189b0d-bc22-4033-b9a0-055d2d94c153/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[777575,777588] [2022-11-03 02:03:46,647 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a189b0d-bc22-4033-b9a0-055d2d94c153/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[777726,777739] [2022-11-03 02:03:46,648 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a189b0d-bc22-4033-b9a0-055d2d94c153/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[777881,777894] [2022-11-03 02:03:46,648 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a189b0d-bc22-4033-b9a0-055d2d94c153/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[778033,778046] [2022-11-03 02:03:46,649 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a189b0d-bc22-4033-b9a0-055d2d94c153/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[778188,778201] [2022-11-03 02:03:46,649 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a189b0d-bc22-4033-b9a0-055d2d94c153/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[778352,778365] [2022-11-03 02:03:46,650 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a189b0d-bc22-4033-b9a0-055d2d94c153/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[778508,778521] [2022-11-03 02:03:46,650 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a189b0d-bc22-4033-b9a0-055d2d94c153/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[778672,778685] [2022-11-03 02:03:46,651 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a189b0d-bc22-4033-b9a0-055d2d94c153/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[778814,778827] [2022-11-03 02:03:46,651 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a189b0d-bc22-4033-b9a0-055d2d94c153/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[778972,778985] [2022-11-03 02:03:46,652 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a189b0d-bc22-4033-b9a0-055d2d94c153/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[779139,779152] [2022-11-03 02:03:46,653 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a189b0d-bc22-4033-b9a0-055d2d94c153/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[779298,779311] [2022-11-03 02:03:46,653 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a189b0d-bc22-4033-b9a0-055d2d94c153/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[779457,779470] [2022-11-03 02:03:46,654 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a189b0d-bc22-4033-b9a0-055d2d94c153/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[779606,779619] [2022-11-03 02:03:46,654 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a189b0d-bc22-4033-b9a0-055d2d94c153/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[779753,779766] [2022-11-03 02:03:46,655 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a189b0d-bc22-4033-b9a0-055d2d94c153/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[779892,779905] [2022-11-03 02:03:46,655 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a189b0d-bc22-4033-b9a0-055d2d94c153/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[780055,780068] [2022-11-03 02:03:46,656 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a189b0d-bc22-4033-b9a0-055d2d94c153/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[780221,780234] [2022-11-03 02:03:46,656 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a189b0d-bc22-4033-b9a0-055d2d94c153/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[780385,780398] [2022-11-03 02:03:46,657 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a189b0d-bc22-4033-b9a0-055d2d94c153/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[780550,780563] [2022-11-03 02:03:46,658 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a189b0d-bc22-4033-b9a0-055d2d94c153/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[780715,780728] [2022-11-03 02:03:46,658 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a189b0d-bc22-4033-b9a0-055d2d94c153/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[780881,780894] [2022-11-03 02:03:46,659 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a189b0d-bc22-4033-b9a0-055d2d94c153/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[781046,781059] [2022-11-03 02:03:46,659 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a189b0d-bc22-4033-b9a0-055d2d94c153/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[781213,781226] [2022-11-03 02:03:46,660 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a189b0d-bc22-4033-b9a0-055d2d94c153/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[781373,781386] [2022-11-03 02:03:46,660 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a189b0d-bc22-4033-b9a0-055d2d94c153/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[781535,781548] [2022-11-03 02:03:46,661 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a189b0d-bc22-4033-b9a0-055d2d94c153/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[781694,781707] [2022-11-03 02:03:46,661 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a189b0d-bc22-4033-b9a0-055d2d94c153/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[781840,781853] [2022-11-03 02:03:46,662 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a189b0d-bc22-4033-b9a0-055d2d94c153/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[781983,781996] [2022-11-03 02:03:46,663 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a189b0d-bc22-4033-b9a0-055d2d94c153/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[782127,782140] [2022-11-03 02:03:46,663 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a189b0d-bc22-4033-b9a0-055d2d94c153/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[782270,782283] [2022-11-03 02:03:46,664 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a189b0d-bc22-4033-b9a0-055d2d94c153/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[782414,782427] [2022-11-03 02:03:46,664 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a189b0d-bc22-4033-b9a0-055d2d94c153/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[782555,782568] [2022-11-03 02:03:46,665 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a189b0d-bc22-4033-b9a0-055d2d94c153/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[782693,782706] [2022-11-03 02:03:46,665 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a189b0d-bc22-4033-b9a0-055d2d94c153/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[782851,782864] [2022-11-03 02:03:46,666 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a189b0d-bc22-4033-b9a0-055d2d94c153/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[783010,783023] [2022-11-03 02:03:46,666 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a189b0d-bc22-4033-b9a0-055d2d94c153/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[783166,783179] [2022-11-03 02:03:46,667 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a189b0d-bc22-4033-b9a0-055d2d94c153/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[783315,783328] [2022-11-03 02:03:46,667 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a189b0d-bc22-4033-b9a0-055d2d94c153/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[783467,783480] [2022-11-03 02:03:46,668 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a189b0d-bc22-4033-b9a0-055d2d94c153/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[783618,783631] [2022-11-03 02:03:46,668 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a189b0d-bc22-4033-b9a0-055d2d94c153/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[783767,783780] [2022-11-03 02:03:46,669 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a189b0d-bc22-4033-b9a0-055d2d94c153/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[783919,783932] [2022-11-03 02:03:46,669 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a189b0d-bc22-4033-b9a0-055d2d94c153/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[784067,784080] [2022-11-03 02:03:46,670 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a189b0d-bc22-4033-b9a0-055d2d94c153/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[784220,784233] [2022-11-03 02:03:46,670 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a189b0d-bc22-4033-b9a0-055d2d94c153/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[784371,784384] [2022-11-03 02:03:46,671 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a189b0d-bc22-4033-b9a0-055d2d94c153/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[784521,784534] [2022-11-03 02:03:46,671 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a189b0d-bc22-4033-b9a0-055d2d94c153/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[784668,784681] [2022-11-03 02:03:46,672 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a189b0d-bc22-4033-b9a0-055d2d94c153/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[784819,784832] [2022-11-03 02:03:46,672 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a189b0d-bc22-4033-b9a0-055d2d94c153/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[784970,784983] [2022-11-03 02:03:46,673 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a189b0d-bc22-4033-b9a0-055d2d94c153/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[785118,785131] [2022-11-03 02:03:46,673 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a189b0d-bc22-4033-b9a0-055d2d94c153/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[785284,785297] [2022-11-03 02:03:46,674 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a189b0d-bc22-4033-b9a0-055d2d94c153/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[785453,785466] [2022-11-03 02:03:46,674 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a189b0d-bc22-4033-b9a0-055d2d94c153/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[785620,785633] [2022-11-03 02:03:46,675 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a189b0d-bc22-4033-b9a0-055d2d94c153/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[785788,785801] [2022-11-03 02:03:46,675 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a189b0d-bc22-4033-b9a0-055d2d94c153/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[785938,785951] [2022-11-03 02:03:46,676 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a189b0d-bc22-4033-b9a0-055d2d94c153/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[786085,786098] [2022-11-03 02:03:46,677 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a189b0d-bc22-4033-b9a0-055d2d94c153/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[786246,786259] [2022-11-03 02:03:46,677 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a189b0d-bc22-4033-b9a0-055d2d94c153/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[786416,786429] [2022-11-03 02:03:46,678 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a189b0d-bc22-4033-b9a0-055d2d94c153/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[786578,786591] [2022-11-03 02:03:46,706 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 02:03:46,748 INFO L203 MainTranslator]: Completed pre-run [2022-11-03 02:03:47,844 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a189b0d-bc22-4033-b9a0-055d2d94c153/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[773190,773203] [2022-11-03 02:03:47,845 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a189b0d-bc22-4033-b9a0-055d2d94c153/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[773335,773348] [2022-11-03 02:03:47,846 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a189b0d-bc22-4033-b9a0-055d2d94c153/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[773481,773494] [2022-11-03 02:03:47,846 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a189b0d-bc22-4033-b9a0-055d2d94c153/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[773646,773659] [2022-11-03 02:03:47,847 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a189b0d-bc22-4033-b9a0-055d2d94c153/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[773804,773817] [2022-11-03 02:03:47,847 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a189b0d-bc22-4033-b9a0-055d2d94c153/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[773962,773975] [2022-11-03 02:03:47,848 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a189b0d-bc22-4033-b9a0-055d2d94c153/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[774120,774133] [2022-11-03 02:03:47,848 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a189b0d-bc22-4033-b9a0-055d2d94c153/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[774280,774293] [2022-11-03 02:03:47,849 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a189b0d-bc22-4033-b9a0-055d2d94c153/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[774439,774452] [2022-11-03 02:03:47,849 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a189b0d-bc22-4033-b9a0-055d2d94c153/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[774578,774591] [2022-11-03 02:03:47,849 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a189b0d-bc22-4033-b9a0-055d2d94c153/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[774720,774733] [2022-11-03 02:03:47,850 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a189b0d-bc22-4033-b9a0-055d2d94c153/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[774869,774882] [2022-11-03 02:03:47,850 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a189b0d-bc22-4033-b9a0-055d2d94c153/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[775008,775021] [2022-11-03 02:03:47,851 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a189b0d-bc22-4033-b9a0-055d2d94c153/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[775163,775176] [2022-11-03 02:03:47,851 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a189b0d-bc22-4033-b9a0-055d2d94c153/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[775323,775336] [2022-11-03 02:03:47,852 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a189b0d-bc22-4033-b9a0-055d2d94c153/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[775474,775487] [2022-11-03 02:03:47,852 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a189b0d-bc22-4033-b9a0-055d2d94c153/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[775625,775638] [2022-11-03 02:03:47,853 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a189b0d-bc22-4033-b9a0-055d2d94c153/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[775777,775790] [2022-11-03 02:03:47,853 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a189b0d-bc22-4033-b9a0-055d2d94c153/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[775926,775939] [2022-11-03 02:03:47,854 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a189b0d-bc22-4033-b9a0-055d2d94c153/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[776074,776087] [2022-11-03 02:03:47,854 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a189b0d-bc22-4033-b9a0-055d2d94c153/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[776231,776244] [2022-11-03 02:03:47,854 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a189b0d-bc22-4033-b9a0-055d2d94c153/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[776380,776393] [2022-11-03 02:03:47,855 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a189b0d-bc22-4033-b9a0-055d2d94c153/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[776536,776549] [2022-11-03 02:03:47,855 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a189b0d-bc22-4033-b9a0-055d2d94c153/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[776689,776702] [2022-11-03 02:03:47,856 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a189b0d-bc22-4033-b9a0-055d2d94c153/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[776835,776848] [2022-11-03 02:03:47,856 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a189b0d-bc22-4033-b9a0-055d2d94c153/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[776978,776991] [2022-11-03 02:03:47,857 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a189b0d-bc22-4033-b9a0-055d2d94c153/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[777130,777143] [2022-11-03 02:03:47,857 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a189b0d-bc22-4033-b9a0-055d2d94c153/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[777276,777289] [2022-11-03 02:03:47,858 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a189b0d-bc22-4033-b9a0-055d2d94c153/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[777421,777434] [2022-11-03 02:03:47,858 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a189b0d-bc22-4033-b9a0-055d2d94c153/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[777575,777588] [2022-11-03 02:03:47,859 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a189b0d-bc22-4033-b9a0-055d2d94c153/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[777726,777739] [2022-11-03 02:03:47,859 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a189b0d-bc22-4033-b9a0-055d2d94c153/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[777881,777894] [2022-11-03 02:03:47,859 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a189b0d-bc22-4033-b9a0-055d2d94c153/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[778033,778046] [2022-11-03 02:03:47,860 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a189b0d-bc22-4033-b9a0-055d2d94c153/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[778188,778201] [2022-11-03 02:03:47,860 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a189b0d-bc22-4033-b9a0-055d2d94c153/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[778352,778365] [2022-11-03 02:03:47,861 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a189b0d-bc22-4033-b9a0-055d2d94c153/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[778508,778521] [2022-11-03 02:03:47,861 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a189b0d-bc22-4033-b9a0-055d2d94c153/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[778672,778685] [2022-11-03 02:03:47,862 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a189b0d-bc22-4033-b9a0-055d2d94c153/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[778814,778827] [2022-11-03 02:03:47,862 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a189b0d-bc22-4033-b9a0-055d2d94c153/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[778972,778985] [2022-11-03 02:03:47,863 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a189b0d-bc22-4033-b9a0-055d2d94c153/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[779139,779152] [2022-11-03 02:03:47,863 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a189b0d-bc22-4033-b9a0-055d2d94c153/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[779298,779311] [2022-11-03 02:03:47,864 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a189b0d-bc22-4033-b9a0-055d2d94c153/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[779457,779470] [2022-11-03 02:03:47,864 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a189b0d-bc22-4033-b9a0-055d2d94c153/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[779606,779619] [2022-11-03 02:03:47,864 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a189b0d-bc22-4033-b9a0-055d2d94c153/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[779753,779766] [2022-11-03 02:03:47,865 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a189b0d-bc22-4033-b9a0-055d2d94c153/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[779892,779905] [2022-11-03 02:03:47,865 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a189b0d-bc22-4033-b9a0-055d2d94c153/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[780055,780068] [2022-11-03 02:03:47,866 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a189b0d-bc22-4033-b9a0-055d2d94c153/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[780221,780234] [2022-11-03 02:03:47,866 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a189b0d-bc22-4033-b9a0-055d2d94c153/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[780385,780398] [2022-11-03 02:03:47,867 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a189b0d-bc22-4033-b9a0-055d2d94c153/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[780550,780563] [2022-11-03 02:03:47,867 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a189b0d-bc22-4033-b9a0-055d2d94c153/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[780715,780728] [2022-11-03 02:03:47,868 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a189b0d-bc22-4033-b9a0-055d2d94c153/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[780881,780894] [2022-11-03 02:03:47,868 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a189b0d-bc22-4033-b9a0-055d2d94c153/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[781046,781059] [2022-11-03 02:03:47,869 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a189b0d-bc22-4033-b9a0-055d2d94c153/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[781213,781226] [2022-11-03 02:03:47,869 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a189b0d-bc22-4033-b9a0-055d2d94c153/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[781373,781386] [2022-11-03 02:03:47,870 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a189b0d-bc22-4033-b9a0-055d2d94c153/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[781535,781548] [2022-11-03 02:03:47,870 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a189b0d-bc22-4033-b9a0-055d2d94c153/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[781694,781707] [2022-11-03 02:03:47,870 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a189b0d-bc22-4033-b9a0-055d2d94c153/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[781840,781853] [2022-11-03 02:03:47,871 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a189b0d-bc22-4033-b9a0-055d2d94c153/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[781983,781996] [2022-11-03 02:03:47,871 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a189b0d-bc22-4033-b9a0-055d2d94c153/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[782127,782140] [2022-11-03 02:03:47,872 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a189b0d-bc22-4033-b9a0-055d2d94c153/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[782270,782283] [2022-11-03 02:03:47,872 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a189b0d-bc22-4033-b9a0-055d2d94c153/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[782414,782427] [2022-11-03 02:03:47,873 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a189b0d-bc22-4033-b9a0-055d2d94c153/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[782555,782568] [2022-11-03 02:03:47,873 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a189b0d-bc22-4033-b9a0-055d2d94c153/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[782693,782706] [2022-11-03 02:03:47,874 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a189b0d-bc22-4033-b9a0-055d2d94c153/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[782851,782864] [2022-11-03 02:03:47,874 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a189b0d-bc22-4033-b9a0-055d2d94c153/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[783010,783023] [2022-11-03 02:03:47,875 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a189b0d-bc22-4033-b9a0-055d2d94c153/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[783166,783179] [2022-11-03 02:03:47,875 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a189b0d-bc22-4033-b9a0-055d2d94c153/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[783315,783328] [2022-11-03 02:03:47,875 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a189b0d-bc22-4033-b9a0-055d2d94c153/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[783467,783480] [2022-11-03 02:03:47,876 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a189b0d-bc22-4033-b9a0-055d2d94c153/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[783618,783631] [2022-11-03 02:03:47,876 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a189b0d-bc22-4033-b9a0-055d2d94c153/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[783767,783780] [2022-11-03 02:03:47,877 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a189b0d-bc22-4033-b9a0-055d2d94c153/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[783919,783932] [2022-11-03 02:03:47,877 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a189b0d-bc22-4033-b9a0-055d2d94c153/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[784067,784080] [2022-11-03 02:03:47,878 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a189b0d-bc22-4033-b9a0-055d2d94c153/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[784220,784233] [2022-11-03 02:03:47,878 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a189b0d-bc22-4033-b9a0-055d2d94c153/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[784371,784384] [2022-11-03 02:03:47,878 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a189b0d-bc22-4033-b9a0-055d2d94c153/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[784521,784534] [2022-11-03 02:03:47,879 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a189b0d-bc22-4033-b9a0-055d2d94c153/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[784668,784681] [2022-11-03 02:03:47,879 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a189b0d-bc22-4033-b9a0-055d2d94c153/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[784819,784832] [2022-11-03 02:03:47,880 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a189b0d-bc22-4033-b9a0-055d2d94c153/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[784970,784983] [2022-11-03 02:03:47,880 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a189b0d-bc22-4033-b9a0-055d2d94c153/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[785118,785131] [2022-11-03 02:03:47,881 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a189b0d-bc22-4033-b9a0-055d2d94c153/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[785284,785297] [2022-11-03 02:03:47,881 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a189b0d-bc22-4033-b9a0-055d2d94c153/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[785453,785466] [2022-11-03 02:03:47,881 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a189b0d-bc22-4033-b9a0-055d2d94c153/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[785620,785633] [2022-11-03 02:03:47,882 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a189b0d-bc22-4033-b9a0-055d2d94c153/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[785788,785801] [2022-11-03 02:03:47,882 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a189b0d-bc22-4033-b9a0-055d2d94c153/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[785938,785951] [2022-11-03 02:03:47,883 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a189b0d-bc22-4033-b9a0-055d2d94c153/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[786085,786098] [2022-11-03 02:03:47,883 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a189b0d-bc22-4033-b9a0-055d2d94c153/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[786246,786259] [2022-11-03 02:03:47,884 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a189b0d-bc22-4033-b9a0-055d2d94c153/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[786416,786429] [2022-11-03 02:03:47,884 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a189b0d-bc22-4033-b9a0-055d2d94c153/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--md--raid456.ko.cil.i[786578,786591] [2022-11-03 02:03:47,893 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 02:03:48,355 INFO L208 MainTranslator]: Completed translation [2022-11-03 02:03:48,356 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:03:48 WrapperNode [2022-11-03 02:03:48,356 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-03 02:03:48,358 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-03 02:03:48,358 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-03 02:03:48,358 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-03 02:03:48,368 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:03:48" (1/1) ... [2022-11-03 02:03:48,629 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:03:48" (1/1) ... [2022-11-03 02:03:49,028 INFO L138 Inliner]: procedures = 931, calls = 6987, calls flagged for inlining = 417, calls inlined = 280, statements flattened = 10912 [2022-11-03 02:03:49,029 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-03 02:03:49,030 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-03 02:03:49,030 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-03 02:03:49,031 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-03 02:03:49,042 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:03:48" (1/1) ... [2022-11-03 02:03:49,042 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:03:48" (1/1) ... [2022-11-03 02:03:49,115 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:03:48" (1/1) ... [2022-11-03 02:03:49,116 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:03:48" (1/1) ... [2022-11-03 02:03:49,363 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:03:48" (1/1) ... [2022-11-03 02:03:49,408 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:03:48" (1/1) ... [2022-11-03 02:03:49,472 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:03:48" (1/1) ... [2022-11-03 02:03:49,506 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:03:48" (1/1) ... [2022-11-03 02:03:49,577 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-03 02:03:49,578 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-03 02:03:49,579 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-03 02:03:49,579 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-03 02:03:49,581 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:03:48" (1/1) ... [2022-11-03 02:03:49,587 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 02:03:49,597 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a189b0d-bc22-4033-b9a0-055d2d94c153/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:03:49,614 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a189b0d-bc22-4033-b9a0-055d2d94c153/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-03 02:03:49,644 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a189b0d-bc22-4033-b9a0-055d2d94c153/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-03 02:03:49,660 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int_nonpositive [2022-11-03 02:03:49,660 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int_nonpositive [2022-11-03 02:03:49,661 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_thread_groups [2022-11-03 02:03:49,661 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_thread_groups [2022-11-03 02:03:49,662 INFO L130 BoogieDeclarations]: Found specification of procedure bio_endio [2022-11-03 02:03:49,662 INFO L138 BoogieDeclarations]: Found implementation of procedure bio_endio [2022-11-03 02:03:49,662 INFO L130 BoogieDeclarations]: Found specification of procedure kmem_cache_create [2022-11-03 02:03:49,662 INFO L138 BoogieDeclarations]: Found implementation of procedure kmem_cache_create [2022-11-03 02:03:49,662 INFO L130 BoogieDeclarations]: Found specification of procedure sync_request [2022-11-03 02:03:49,662 INFO L138 BoogieDeclarations]: Found implementation of procedure sync_request [2022-11-03 02:03:49,663 INFO L130 BoogieDeclarations]: Found specification of procedure get_active_stripe [2022-11-03 02:03:49,663 INFO L138 BoogieDeclarations]: Found implementation of procedure get_active_stripe [2022-11-03 02:03:49,663 INFO L130 BoogieDeclarations]: Found specification of procedure variable_test_bit [2022-11-03 02:03:49,663 INFO L138 BoogieDeclarations]: Found implementation of procedure variable_test_bit [2022-11-03 02:03:49,663 INFO L130 BoogieDeclarations]: Found specification of procedure raid5_remove_disk [2022-11-03 02:03:49,663 INFO L138 BoogieDeclarations]: Found implementation of procedure raid5_remove_disk [2022-11-03 02:03:49,664 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_mmc_sdio_func_check_final_state [2022-11-03 02:03:49,664 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_mmc_sdio_func_check_final_state [2022-11-03 02:03:49,664 INFO L130 BoogieDeclarations]: Found specification of procedure __might_sleep [2022-11-03 02:03:49,664 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_sleep [2022-11-03 02:03:49,664 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-11-03 02:03:49,665 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-11-03 02:03:49,665 INFO L130 BoogieDeclarations]: Found specification of procedure bdevname [2022-11-03 02:03:49,665 INFO L138 BoogieDeclarations]: Found implementation of procedure bdevname [2022-11-03 02:03:49,665 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_irq_restore [2022-11-03 02:03:49,665 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_irq_restore [2022-11-03 02:03:49,665 INFO L130 BoogieDeclarations]: Found specification of procedure __clear_bit [2022-11-03 02:03:49,666 INFO L138 BoogieDeclarations]: Found implementation of procedure __clear_bit [2022-11-03 02:03:49,666 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2022-11-03 02:03:49,666 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2022-11-03 02:03:49,666 INFO L130 BoogieDeclarations]: Found specification of procedure __preempt_count_sub [2022-11-03 02:03:49,666 INFO L138 BoogieDeclarations]: Found implementation of procedure __preempt_count_sub [2022-11-03 02:03:49,666 INFO L130 BoogieDeclarations]: Found specification of procedure arch_irqs_disabled_flags [2022-11-03 02:03:49,667 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_irqs_disabled_flags [2022-11-03 02:03:49,667 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-11-03 02:03:49,667 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-11-03 02:03:49,667 INFO L130 BoogieDeclarations]: Found specification of procedure read_seqcount_begin [2022-11-03 02:03:49,667 INFO L138 BoogieDeclarations]: Found implementation of procedure read_seqcount_begin [2022-11-03 02:03:49,667 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_102 [2022-11-03 02:03:49,668 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_102 [2022-11-03 02:03:49,668 INFO L130 BoogieDeclarations]: Found specification of procedure __cpu_to_node [2022-11-03 02:03:49,668 INFO L138 BoogieDeclarations]: Found implementation of procedure __cpu_to_node [2022-11-03 02:03:49,668 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-11-03 02:03:49,668 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-11-03 02:03:49,669 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_request_check_final_state [2022-11-03 02:03:49,669 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_request_check_final_state [2022-11-03 02:03:49,669 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-11-03 02:03:49,669 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-11-03 02:03:49,670 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_md_personality [2022-11-03 02:03:49,670 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_md_personality [2022-11-03 02:03:49,670 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-11-03 02:03:49,670 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-11-03 02:03:49,670 INFO L130 BoogieDeclarations]: Found specification of procedure lock_device_hash_lock [2022-11-03 02:03:49,671 INFO L138 BoogieDeclarations]: Found implementation of procedure lock_device_hash_lock [2022-11-03 02:03:49,671 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_bh_check_final_state [2022-11-03 02:03:49,671 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_bh_check_final_state [2022-11-03 02:03:49,671 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-03 02:03:49,671 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_genhd_check_final_state [2022-11-03 02:03:49,672 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_genhd_check_final_state [2022-11-03 02:03:49,672 INFO L130 BoogieDeclarations]: Found specification of procedure stripe_operations_active [2022-11-03 02:03:49,672 INFO L138 BoogieDeclarations]: Found implementation of procedure stripe_operations_active [2022-11-03 02:03:49,672 INFO L130 BoogieDeclarations]: Found specification of procedure free_scratch_buffer [2022-11-03 02:03:49,672 INFO L138 BoogieDeclarations]: Found implementation of procedure free_scratch_buffer [2022-11-03 02:03:49,673 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irq_122 [2022-11-03 02:03:49,673 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irq_122 [2022-11-03 02:03:49,676 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-11-03 02:03:49,676 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-11-03 02:03:49,677 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_to_wait_event [2022-11-03 02:03:49,677 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_to_wait_event [2022-11-03 02:03:49,678 INFO L130 BoogieDeclarations]: Found specification of procedure raid5_congested [2022-11-03 02:03:49,678 INFO L138 BoogieDeclarations]: Found implementation of procedure raid5_congested [2022-11-03 02:03:49,678 INFO L130 BoogieDeclarations]: Found specification of procedure put_online_cpus [2022-11-03 02:03:49,678 INFO L138 BoogieDeclarations]: Found implementation of procedure put_online_cpus [2022-11-03 02:03:49,678 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irq_137 [2022-11-03 02:03:49,687 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irq_137 [2022-11-03 02:03:49,687 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_srcu_check_final_state [2022-11-03 02:03:49,687 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_srcu_check_final_state [2022-11-03 02:03:49,687 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock [2022-11-03 02:03:49,688 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock [2022-11-03 02:03:49,688 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-03 02:03:49,688 INFO L130 BoogieDeclarations]: Found specification of procedure revalidate_disk [2022-11-03 02:03:49,688 INFO L138 BoogieDeclarations]: Found implementation of procedure revalidate_disk [2022-11-03 02:03:49,688 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2022-11-03 02:03:49,688 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2022-11-03 02:03:49,689 INFO L130 BoogieDeclarations]: Found specification of procedure stripe_set_idx [2022-11-03 02:03:49,689 INFO L138 BoogieDeclarations]: Found implementation of procedure stripe_set_idx [2022-11-03 02:03:49,689 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-03 02:03:49,689 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-03 02:03:49,689 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-03 02:03:49,689 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-03 02:03:49,690 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-11-03 02:03:49,690 INFO L130 BoogieDeclarations]: Found specification of procedure compute_blocknr [2022-11-03 02:03:49,690 INFO L138 BoogieDeclarations]: Found implementation of procedure compute_blocknr [2022-11-03 02:03:49,690 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2022-11-03 02:03:49,690 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2022-11-03 02:03:49,690 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_spinlock_spin_unlock_device_lock_of_r5conf [2022-11-03 02:03:49,691 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_spinlock_spin_unlock_device_lock_of_r5conf [2022-11-03 02:03:49,691 INFO L130 BoogieDeclarations]: Found specification of procedure raid5_wakeup_stripe_thread [2022-11-03 02:03:49,691 INFO L138 BoogieDeclarations]: Found implementation of procedure raid5_wakeup_stripe_thread [2022-11-03 02:03:49,691 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock_sched_notrace [2022-11-03 02:03:49,691 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock_sched_notrace [2022-11-03 02:03:49,691 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_md_register_thread [2022-11-03 02:03:49,692 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_md_register_thread [2022-11-03 02:03:49,692 INFO L130 BoogieDeclarations]: Found specification of procedure kmem_cache_zalloc [2022-11-03 02:03:49,692 INFO L138 BoogieDeclarations]: Found implementation of procedure kmem_cache_zalloc [2022-11-03 02:03:49,692 INFO L130 BoogieDeclarations]: Found specification of procedure read_seqcount_retry [2022-11-03 02:03:49,692 INFO L138 BoogieDeclarations]: Found implementation of procedure read_seqcount_retry [2022-11-03 02:03:49,692 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_176 [2022-11-03 02:03:49,693 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_176 [2022-11-03 02:03:49,693 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2022-11-03 02:03:49,693 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2022-11-03 02:03:49,693 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-11-03 02:03:49,693 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-11-03 02:03:49,694 INFO L130 BoogieDeclarations]: Found specification of procedure release_stripe [2022-11-03 02:03:49,694 INFO L138 BoogieDeclarations]: Found implementation of procedure release_stripe [2022-11-03 02:03:49,694 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2022-11-03 02:03:49,694 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2022-11-03 02:03:49,695 INFO L130 BoogieDeclarations]: Found specification of procedure disk_devt [2022-11-03 02:03:49,695 INFO L138 BoogieDeclarations]: Found implementation of procedure disk_devt [2022-11-03 02:03:49,696 INFO L130 BoogieDeclarations]: Found specification of procedure make_request [2022-11-03 02:03:49,696 INFO L138 BoogieDeclarations]: Found implementation of procedure make_request [2022-11-03 02:03:49,696 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-11-03 02:03:49,696 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-11-03 02:03:49,696 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irq_103 [2022-11-03 02:03:49,697 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irq_103 [2022-11-03 02:03:49,697 INFO L130 BoogieDeclarations]: Found specification of procedure finish_wait [2022-11-03 02:03:49,697 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_wait [2022-11-03 02:03:49,697 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-03 02:03:49,697 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-03 02:03:49,697 INFO L130 BoogieDeclarations]: Found specification of procedure bdev_get_queue [2022-11-03 02:03:49,698 INFO L138 BoogieDeclarations]: Found implementation of procedure bdev_get_queue [2022-11-03 02:03:49,698 INFO L130 BoogieDeclarations]: Found specification of procedure raid5_start_reshape [2022-11-03 02:03:49,698 INFO L138 BoogieDeclarations]: Found implementation of procedure raid5_start_reshape [2022-11-03 02:03:49,698 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2022-11-03 02:03:49,698 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2022-11-03 02:03:49,698 INFO L130 BoogieDeclarations]: Found specification of procedure sysfs_notify_dirent_safe [2022-11-03 02:03:49,698 INFO L138 BoogieDeclarations]: Found implementation of procedure sysfs_notify_dirent_safe [2022-11-03 02:03:49,699 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2022-11-03 02:03:49,699 INFO L130 BoogieDeclarations]: Found specification of procedure mddev_lock [2022-11-03 02:03:49,836 INFO L138 BoogieDeclarations]: Found implementation of procedure mddev_lock [2022-11-03 02:03:49,837 INFO L130 BoogieDeclarations]: Found specification of procedure list_del_init [2022-11-03 02:03:49,837 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del_init [2022-11-03 02:03:49,837 INFO L130 BoogieDeclarations]: Found specification of procedure trace_hardirqs_on [2022-11-03 02:03:49,837 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_hardirqs_on [2022-11-03 02:03:49,837 INFO L130 BoogieDeclarations]: Found specification of procedure write_seqcount_end [2022-11-03 02:03:49,837 INFO L138 BoogieDeclarations]: Found implementation of procedure write_seqcount_end [2022-11-03 02:03:49,837 INFO L130 BoogieDeclarations]: Found specification of procedure set_capacity [2022-11-03 02:03:49,837 INFO L138 BoogieDeclarations]: Found implementation of procedure set_capacity [2022-11-03 02:03:49,837 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-03 02:03:49,837 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-03 02:03:49,837 INFO L130 BoogieDeclarations]: Found specification of procedure raid5_resize [2022-11-03 02:03:49,837 INFO L138 BoogieDeclarations]: Found implementation of procedure raid5_resize [2022-11-03 02:03:49,838 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_128 [2022-11-03 02:03:49,838 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_128 [2022-11-03 02:03:49,838 INFO L130 BoogieDeclarations]: Found specification of procedure trace_block_bio_remap [2022-11-03 02:03:49,838 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_block_bio_remap [2022-11-03 02:03:49,838 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_sock_check_final_state [2022-11-03 02:03:49,838 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_sock_check_final_state [2022-11-03 02:03:49,838 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_for_read_section [2022-11-03 02:03:49,838 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_for_read_section [2022-11-03 02:03:49,838 INFO L130 BoogieDeclarations]: Found specification of procedure ERR_PTR [2022-11-03 02:03:49,838 INFO L138 BoogieDeclarations]: Found implementation of procedure ERR_PTR [2022-11-03 02:03:49,838 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock_sched_held [2022-11-03 02:03:49,838 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock_sched_held [2022-11-03 02:03:49,838 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_gadget_check_final_state [2022-11-03 02:03:49,839 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_gadget_check_final_state [2022-11-03 02:03:49,839 INFO L130 BoogieDeclarations]: Found specification of procedure run [2022-11-03 02:03:49,839 INFO L138 BoogieDeclarations]: Found implementation of procedure run [2022-11-03 02:03:49,839 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-03 02:03:49,839 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-11-03 02:03:49,839 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-11-03 02:03:49,839 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_fs_sysfs_check_final_state [2022-11-03 02:03:49,839 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_fs_sysfs_check_final_state [2022-11-03 02:03:49,839 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-03 02:03:49,839 INFO L130 BoogieDeclarations]: Found specification of procedure put_page [2022-11-03 02:03:49,839 INFO L138 BoogieDeclarations]: Found implementation of procedure put_page [2022-11-03 02:03:49,839 INFO L130 BoogieDeclarations]: Found specification of procedure drop_one_stripe [2022-11-03 02:03:49,839 INFO L138 BoogieDeclarations]: Found implementation of procedure drop_one_stripe [2022-11-03 02:03:49,839 INFO L130 BoogieDeclarations]: Found specification of procedure bio_put [2022-11-03 02:03:49,840 INFO L138 BoogieDeclarations]: Found implementation of procedure bio_put [2022-11-03 02:03:49,840 INFO L130 BoogieDeclarations]: Found specification of procedure raid5_add_disk [2022-11-03 02:03:49,840 INFO L138 BoogieDeclarations]: Found implementation of procedure raid5_add_disk [2022-11-03 02:03:49,840 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-11-03 02:03:49,840 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-11-03 02:03:49,840 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work_on [2022-11-03 02:03:49,840 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work_on [2022-11-03 02:03:49,840 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2022-11-03 02:03:49,840 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2022-11-03 02:03:49,840 INFO L130 BoogieDeclarations]: Found specification of procedure shrink_buffers [2022-11-03 02:03:49,840 INFO L138 BoogieDeclarations]: Found implementation of procedure shrink_buffers [2022-11-03 02:03:49,840 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-11-03 02:03:49,841 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-11-03 02:03:49,843 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_spinlock_spin_unlock_stripe_lock_of_stripe_head [2022-11-03 02:03:49,843 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_spinlock_spin_unlock_stripe_lock_of_stripe_head [2022-11-03 02:03:49,843 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2022-11-03 02:03:49,843 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2022-11-03 02:03:49,843 INFO L130 BoogieDeclarations]: Found specification of procedure mdname [2022-11-03 02:03:49,843 INFO L138 BoogieDeclarations]: Found implementation of procedure mdname [2022-11-03 02:03:49,843 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_check_final_state [2022-11-03 02:03:49,843 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_check_final_state [2022-11-03 02:03:49,843 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_urb_check_final_state [2022-11-03 02:03:49,844 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_urb_check_final_state [2022-11-03 02:03:49,844 INFO L130 BoogieDeclarations]: Found specification of procedure mddev_suspend [2022-11-03 02:03:49,844 INFO L138 BoogieDeclarations]: Found implementation of procedure mddev_suspend [2022-11-03 02:03:49,844 INFO L130 BoogieDeclarations]: Found specification of procedure free_conf [2022-11-03 02:03:49,844 INFO L138 BoogieDeclarations]: Found implementation of procedure free_conf [2022-11-03 02:03:49,844 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-11-03 02:03:49,844 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-11-03 02:03:49,844 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_cmpxchg [2022-11-03 02:03:49,844 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_cmpxchg [2022-11-03 02:03:49,844 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock_held [2022-11-03 02:03:49,844 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock_held [2022-11-03 02:03:49,844 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-03 02:03:49,845 INFO L130 BoogieDeclarations]: Found specification of procedure grow_one_stripe [2022-11-03 02:03:49,845 INFO L138 BoogieDeclarations]: Found implementation of procedure grow_one_stripe [2022-11-03 02:03:49,845 INFO L130 BoogieDeclarations]: Found specification of procedure rdev_dec_pending [2022-11-03 02:03:49,845 INFO L138 BoogieDeclarations]: Found implementation of procedure rdev_dec_pending [2022-11-03 02:03:49,845 INFO L130 BoogieDeclarations]: Found specification of procedure mddev_resume [2022-11-03 02:03:49,845 INFO L138 BoogieDeclarations]: Found implementation of procedure mddev_resume [2022-11-03 02:03:49,845 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2022-11-03 02:03:49,845 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2022-11-03 02:03:49,845 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-03 02:03:49,845 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-03 02:03:49,845 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_spinlock_spin_lock_stripe_lock_of_stripe_head [2022-11-03 02:03:49,845 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_spinlock_spin_lock_stripe_lock_of_stripe_head [2022-11-03 02:03:49,845 INFO L130 BoogieDeclarations]: Found specification of procedure kmem_cache_destroy [2022-11-03 02:03:49,845 INFO L138 BoogieDeclarations]: Found implementation of procedure kmem_cache_destroy [2022-11-03 02:03:49,846 INFO L130 BoogieDeclarations]: Found specification of procedure get_online_cpus [2022-11-03 02:03:49,846 INFO L138 BoogieDeclarations]: Found implementation of procedure get_online_cpus [2022-11-03 02:03:49,846 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_101 [2022-11-03 02:03:49,846 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_101 [2022-11-03 02:03:49,846 INFO L130 BoogieDeclarations]: Found specification of procedure cpumask_next [2022-11-03 02:03:49,846 INFO L138 BoogieDeclarations]: Found implementation of procedure cpumask_next [2022-11-03 02:03:49,846 INFO L130 BoogieDeclarations]: Found specification of procedure __preempt_count_add [2022-11-03 02:03:49,846 INFO L138 BoogieDeclarations]: Found implementation of procedure __preempt_count_add [2022-11-03 02:03:49,846 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_add_unless [2022-11-03 02:03:49,846 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_add_unless [2022-11-03 02:03:49,846 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_scratch_buffer [2022-11-03 02:03:49,846 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_scratch_buffer [2022-11-03 02:03:49,846 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec [2022-11-03 02:03:49,846 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec [2022-11-03 02:03:49,847 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_register_md_personality [2022-11-03 02:03:49,847 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_register_md_personality [2022-11-03 02:03:49,847 INFO L130 BoogieDeclarations]: Found specification of procedure cpumask_check [2022-11-03 02:03:49,847 INFO L138 BoogieDeclarations]: Found implementation of procedure cpumask_check [2022-11-03 02:03:49,847 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2022-11-03 02:03:49,847 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2022-11-03 02:03:49,847 INFO L130 BoogieDeclarations]: Found specification of procedure static_key_false [2022-11-03 02:03:49,847 INFO L138 BoogieDeclarations]: Found implementation of procedure static_key_false [2022-11-03 02:03:49,847 INFO L130 BoogieDeclarations]: Found specification of procedure bitmap_startwrite [2022-11-03 02:03:49,847 INFO L138 BoogieDeclarations]: Found implementation of procedure bitmap_startwrite [2022-11-03 02:03:49,847 INFO L130 BoogieDeclarations]: Found specification of procedure kstrtoul [2022-11-03 02:03:49,847 INFO L138 BoogieDeclarations]: Found implementation of procedure kstrtoul [2022-11-03 02:03:49,847 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_to_wait [2022-11-03 02:03:49,848 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_to_wait [2022-11-03 02:03:49,848 INFO L130 BoogieDeclarations]: Found specification of procedure raid45_takeover_raid0 [2022-11-03 02:03:49,848 INFO L138 BoogieDeclarations]: Found implementation of procedure raid45_takeover_raid0 [2022-11-03 02:03:49,848 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2022-11-03 02:03:49,848 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2022-11-03 02:03:49,848 INFO L130 BoogieDeclarations]: Found specification of procedure sysfs_notify [2022-11-03 02:03:49,848 INFO L138 BoogieDeclarations]: Found implementation of procedure sysfs_notify [2022-11-03 02:03:49,848 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_coherent_check_final_state [2022-11-03 02:03:49,848 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_coherent_check_final_state [2022-11-03 02:03:49,848 INFO L130 BoogieDeclarations]: Found specification of procedure raid5_finish_reshape [2022-11-03 02:03:49,854 INFO L138 BoogieDeclarations]: Found implementation of procedure raid5_finish_reshape [2022-11-03 02:03:49,854 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-03 02:03:49,854 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-03 02:03:49,854 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2022-11-03 02:03:49,854 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2022-11-03 02:03:49,854 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-03 02:03:49,855 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-03 02:03:49,855 INFO L130 BoogieDeclarations]: Found specification of procedure bitmap_start_sync [2022-11-03 02:03:49,855 INFO L138 BoogieDeclarations]: Found implementation of procedure bitmap_start_sync [2022-11-03 02:03:49,855 INFO L130 BoogieDeclarations]: Found specification of procedure raid5_check_reshape [2022-11-03 02:03:49,855 INFO L138 BoogieDeclarations]: Found implementation of procedure raid5_check_reshape [2022-11-03 02:03:49,855 INFO L130 BoogieDeclarations]: Found specification of procedure lock_release [2022-11-03 02:03:49,855 INFO L138 BoogieDeclarations]: Found implementation of procedure lock_release [2022-11-03 02:03:49,856 INFO L130 BoogieDeclarations]: Found specification of procedure setup_conf [2022-11-03 02:03:49,856 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_conf [2022-11-03 02:03:49,856 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_arch_io_check_final_state [2022-11-03 02:03:49,856 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_arch_io_check_final_state [2022-11-03 02:03:49,856 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_module_check_final_state [2022-11-03 02:03:49,856 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_module_check_final_state [2022-11-03 02:03:49,856 INFO L130 BoogieDeclarations]: Found specification of procedure scribble_len [2022-11-03 02:03:49,856 INFO L138 BoogieDeclarations]: Found implementation of procedure scribble_len [2022-11-03 02:03:49,857 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-11-03 02:03:49,857 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-11-03 02:03:49,857 INFO L130 BoogieDeclarations]: Found specification of procedure add_stripe_bio [2022-11-03 02:03:49,857 INFO L138 BoogieDeclarations]: Found implementation of procedure add_stripe_bio [2022-11-03 02:03:49,857 INFO L130 BoogieDeclarations]: Found specification of procedure bio_init [2022-11-03 02:03:49,857 INFO L138 BoogieDeclarations]: Found implementation of procedure bio_init [2022-11-03 02:03:49,857 INFO L130 BoogieDeclarations]: Found specification of procedure generic_make_request [2022-11-03 02:03:49,857 INFO L138 BoogieDeclarations]: Found implementation of procedure generic_make_request [2022-11-03 02:03:49,858 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_pages [2022-11-03 02:03:49,858 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_pages [2022-11-03 02:03:49,858 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-11-03 02:03:49,858 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-11-03 02:03:49,858 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec_and_test [2022-11-03 02:03:49,858 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec_and_test [2022-11-03 02:03:49,858 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_175 [2022-11-03 02:03:49,859 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_175 [2022-11-03 02:03:49,859 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-03 02:03:49,859 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-03 02:03:49,859 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_queue_check_final_state [2022-11-03 02:03:49,859 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_queue_check_final_state [2022-11-03 02:03:49,859 INFO L130 BoogieDeclarations]: Found specification of procedure md_write_end [2022-11-03 02:03:49,859 INFO L138 BoogieDeclarations]: Found implementation of procedure md_write_end [2022-11-03 02:03:49,859 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-03 02:03:49,860 INFO L130 BoogieDeclarations]: Found specification of procedure is_badblock [2022-11-03 02:03:49,860 INFO L138 BoogieDeclarations]: Found implementation of procedure is_badblock [2022-11-03 02:03:49,860 INFO L130 BoogieDeclarations]: Found specification of procedure md_set_array_sectors [2022-11-03 02:03:49,860 INFO L138 BoogieDeclarations]: Found implementation of procedure md_set_array_sectors [2022-11-03 02:03:49,860 INFO L130 BoogieDeclarations]: Found specification of procedure raid5_dec_bi_active_stripes [2022-11-03 02:03:49,860 INFO L138 BoogieDeclarations]: Found implementation of procedure raid5_dec_bi_active_stripes [2022-11-03 02:03:49,860 INFO L130 BoogieDeclarations]: Found specification of procedure register_md_personality [2022-11-03 02:03:49,860 INFO L138 BoogieDeclarations]: Found implementation of procedure register_md_personality [2022-11-03 02:03:49,861 INFO L130 BoogieDeclarations]: Found specification of procedure schedule [2022-11-03 02:03:49,861 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule [2022-11-03 02:03:49,861 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-11-03 02:03:49,861 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-11-03 02:03:49,861 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_in_interrupt_context [2022-11-03 02:03:49,861 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_in_interrupt_context [2022-11-03 02:03:49,861 INFO L130 BoogieDeclarations]: Found specification of procedure get_start_sect [2022-11-03 02:03:49,861 INFO L138 BoogieDeclarations]: Found implementation of procedure get_start_sect [2022-11-03 02:03:49,862 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_after_alloc [2022-11-03 02:03:49,862 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_after_alloc [2022-11-03 02:03:49,862 INFO L130 BoogieDeclarations]: Found specification of procedure print_raid5_conf [2022-11-03 02:03:49,862 INFO L138 BoogieDeclarations]: Found implementation of procedure print_raid5_conf [2022-11-03 02:03:49,862 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_register_reset_error_counter [2022-11-03 02:03:49,862 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_register_reset_error_counter [2022-11-03 02:03:49,862 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2022-11-03 02:03:49,863 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2022-11-03 02:03:49,863 INFO L130 BoogieDeclarations]: Found specification of procedure status [2022-11-03 02:03:49,863 INFO L138 BoogieDeclarations]: Found implementation of procedure status [2022-11-03 02:03:49,863 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2022-11-03 02:03:49,863 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2022-11-03 02:03:49,863 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_lib_idr_check_final_state [2022-11-03 02:03:49,863 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_lib_idr_check_final_state [2022-11-03 02:03:49,863 INFO L130 BoogieDeclarations]: Found specification of procedure md_wakeup_thread [2022-11-03 02:03:49,864 INFO L138 BoogieDeclarations]: Found implementation of procedure md_wakeup_thread [2022-11-03 02:03:49,864 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_irq_save [2022-11-03 02:03:49,864 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_irq_save [2022-11-03 02:03:49,864 INFO L130 BoogieDeclarations]: Found specification of procedure raid5_inc_bi_active_stripes [2022-11-03 02:03:49,864 INFO L138 BoogieDeclarations]: Found implementation of procedure raid5_inc_bi_active_stripes [2022-11-03 02:03:49,864 INFO L130 BoogieDeclarations]: Found specification of procedure disk_stack_limits [2022-11-03 02:03:49,864 INFO L138 BoogieDeclarations]: Found implementation of procedure disk_stack_limits [2022-11-03 02:03:49,864 INFO L130 BoogieDeclarations]: Found specification of procedure remove_hash [2022-11-03 02:03:49,865 INFO L138 BoogieDeclarations]: Found implementation of procedure remove_hash [2022-11-03 02:03:49,865 INFO L130 BoogieDeclarations]: Found specification of procedure stripe_hash [2022-11-03 02:03:49,865 INFO L138 BoogieDeclarations]: Found implementation of procedure stripe_hash [2022-11-03 02:03:49,865 INFO L130 BoogieDeclarations]: Found specification of procedure release_inactive_stripe_list [2022-11-03 02:03:49,865 INFO L138 BoogieDeclarations]: Found implementation of procedure release_inactive_stripe_list [2022-11-03 02:03:49,865 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_register_reset_error_counter [2022-11-03 02:03:49,865 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_register_reset_error_counter [2022-11-03 02:03:49,866 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2022-11-03 02:03:49,866 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2022-11-03 02:03:49,866 INFO L130 BoogieDeclarations]: Found specification of procedure write_seqcount_begin [2022-11-03 02:03:49,866 INFO L138 BoogieDeclarations]: Found implementation of procedure write_seqcount_begin [2022-11-03 02:03:49,866 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_save_flags [2022-11-03 02:03:49,866 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_save_flags [2022-11-03 02:03:49,866 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_spinlock_spin_lock_device_lock_of_r5conf [2022-11-03 02:03:49,866 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_spinlock_spin_lock_device_lock_of_r5conf [2022-11-03 02:03:49,867 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_irq_disable [2022-11-03 02:03:49,867 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_irq_disable [2022-11-03 02:03:49,867 INFO L130 BoogieDeclarations]: Found specification of procedure __cmpxchg_wrong_size [2022-11-03 02:03:49,867 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_md_personality [2022-11-03 02:03:49,867 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_md_personality [2022-11-03 02:03:49,867 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-03 02:03:49,867 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-03 02:03:49,868 INFO L130 BoogieDeclarations]: Found specification of procedure raid5_size [2022-11-03 02:03:49,868 INFO L138 BoogieDeclarations]: Found implementation of procedure raid5_size [2022-11-03 02:03:49,868 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-11-03 02:03:49,868 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-11-03 02:03:49,868 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock_try [2022-11-03 02:03:49,868 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock_try [2022-11-03 02:03:49,868 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_sub_return [2022-11-03 02:03:49,868 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_sub_return [2022-11-03 02:03:49,869 INFO L130 BoogieDeclarations]: Found specification of procedure raid5_spare_active [2022-11-03 02:03:49,869 INFO L138 BoogieDeclarations]: Found implementation of procedure raid5_spare_active [2022-11-03 02:03:49,869 INFO L130 BoogieDeclarations]: Found specification of procedure md_allow_write [2022-11-03 02:03:49,869 INFO L138 BoogieDeclarations]: Found implementation of procedure md_allow_write [2022-11-03 02:03:49,869 INFO L130 BoogieDeclarations]: Found specification of procedure lock_all_device_hash_locks_irq [2022-11-03 02:03:49,869 INFO L138 BoogieDeclarations]: Found implementation of procedure lock_all_device_hash_locks_irq [2022-11-03 02:03:49,869 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2022-11-03 02:03:49,870 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2022-11-03 02:03:49,870 INFO L130 BoogieDeclarations]: Found specification of procedure unlock_device_hash_lock [2022-11-03 02:03:49,870 INFO L138 BoogieDeclarations]: Found implementation of procedure unlock_device_hash_lock [2022-11-03 02:03:49,870 INFO L130 BoogieDeclarations]: Found specification of procedure md_register_thread [2022-11-03 02:03:49,870 INFO L138 BoogieDeclarations]: Found implementation of procedure md_register_thread [2022-11-03 02:03:49,870 INFO L130 BoogieDeclarations]: Found specification of procedure check_stripe_cache [2022-11-03 02:03:49,870 INFO L138 BoogieDeclarations]: Found implementation of procedure check_stripe_cache [2022-11-03 02:03:49,870 INFO L130 BoogieDeclarations]: Found specification of procedure trace_hardirqs_off [2022-11-03 02:03:49,871 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_hardirqs_off [2022-11-03 02:03:49,871 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_spinlock_spin_lock_NOT_ARG_SIGN [2022-11-03 02:03:49,871 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_spinlock_spin_lock_NOT_ARG_SIGN [2022-11-03 02:03:49,871 INFO L130 BoogieDeclarations]: Found specification of procedure raid5_quiesce [2022-11-03 02:03:49,871 INFO L138 BoogieDeclarations]: Found implementation of procedure raid5_quiesce [2022-11-03 02:03:49,871 INFO L130 BoogieDeclarations]: Found specification of procedure raid5_store_stripe_cache_size [2022-11-03 02:03:49,871 INFO L138 BoogieDeclarations]: Found implementation of procedure raid5_store_stripe_cache_size [2022-11-03 02:03:49,872 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_unlock_sched_notrace [2022-11-03 02:03:49,872 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_unlock_sched_notrace [2022-11-03 02:03:49,872 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-03 02:03:49,872 INFO L130 BoogieDeclarations]: Found specification of procedure raid5_compute_sector [2022-11-03 02:03:49,872 INFO L138 BoogieDeclarations]: Found implementation of procedure raid5_compute_sector [2022-11-03 02:03:49,872 INFO L130 BoogieDeclarations]: Found specification of procedure trace_block_bio_complete [2022-11-03 02:03:49,872 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_block_bio_complete [2022-11-03 02:03:49,873 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_rtnetlink_check_final_state [2022-11-03 02:03:49,873 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_rtnetlink_check_final_state [2022-11-03 02:03:49,873 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-11-03 02:03:49,873 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-11-03 02:03:49,873 INFO L130 BoogieDeclarations]: Found specification of procedure do_release_stripe [2022-11-03 02:03:49,873 INFO L138 BoogieDeclarations]: Found implementation of procedure do_release_stripe [2022-11-03 02:03:49,873 INFO L130 BoogieDeclarations]: Found specification of procedure raid5_mergeable_bvec [2022-11-03 02:03:49,874 INFO L138 BoogieDeclarations]: Found implementation of procedure raid5_mergeable_bvec [2022-11-03 02:03:49,874 INFO L130 BoogieDeclarations]: Found specification of procedure check_reshape [2022-11-03 02:03:49,874 INFO L138 BoogieDeclarations]: Found implementation of procedure check_reshape [2022-11-03 02:03:49,874 INFO L130 BoogieDeclarations]: Found specification of procedure get_free_stripe [2022-11-03 02:03:49,874 INFO L138 BoogieDeclarations]: Found implementation of procedure get_free_stripe [2022-11-03 02:03:49,874 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2022-11-03 02:03:49,874 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2022-11-03 02:03:49,874 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_irq_100 [2022-11-03 02:03:49,875 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_irq_100 [2022-11-03 02:03:49,875 INFO L130 BoogieDeclarations]: Found specification of procedure r5_next_bio [2022-11-03 02:03:49,875 INFO L138 BoogieDeclarations]: Found implementation of procedure r5_next_bio [2022-11-03 02:03:49,875 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_linux_kernel_locking_spinlock_spin_lock [2022-11-03 02:03:49,875 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_linux_kernel_locking_spinlock_spin_lock [2022-11-03 02:03:49,875 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_rwlock_check_final_state [2022-11-03 02:03:49,875 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_rwlock_check_final_state [2022-11-03 02:03:49,876 INFO L130 BoogieDeclarations]: Found specification of procedure only_parity [2022-11-03 02:03:49,876 INFO L138 BoogieDeclarations]: Found implementation of procedure only_parity [2022-11-03 02:03:49,876 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-03 02:03:49,876 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-03 02:03:49,876 INFO L130 BoogieDeclarations]: Found specification of procedure mddev_unlock [2022-11-03 02:03:49,876 INFO L138 BoogieDeclarations]: Found implementation of procedure mddev_unlock [2022-11-03 02:03:49,876 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_fs_char_dev_check_final_state [2022-11-03 02:03:49,876 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_fs_char_dev_check_final_state [2022-11-03 02:03:49,877 INFO L130 BoogieDeclarations]: Found specification of procedure is_power_of_2 [2022-11-03 02:03:49,877 INFO L138 BoogieDeclarations]: Found implementation of procedure is_power_of_2 [2022-11-03 02:03:49,877 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_spinlock_spin_unlock_NOT_ARG_SIGN [2022-11-03 02:03:49,877 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_spinlock_spin_unlock_NOT_ARG_SIGN [2022-11-03 02:03:49,877 INFO L130 BoogieDeclarations]: Found specification of procedure release_stripe_plug [2022-11-03 02:03:49,877 INFO L138 BoogieDeclarations]: Found implementation of procedure release_stripe_plug [2022-11-03 02:03:49,877 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_drivers_base_class_check_final_state [2022-11-03 02:03:49,878 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_drivers_base_class_check_final_state [2022-11-03 02:03:49,878 INFO L130 BoogieDeclarations]: Found specification of procedure has_failed [2022-11-03 02:03:49,878 INFO L138 BoogieDeclarations]: Found implementation of procedure has_failed [2022-11-03 02:03:49,878 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2022-11-03 02:03:49,878 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2022-11-03 02:03:49,878 INFO L130 BoogieDeclarations]: Found specification of procedure unlock_all_device_hash_locks_irq [2022-11-03 02:03:49,878 INFO L138 BoogieDeclarations]: Found implementation of procedure unlock_all_device_hash_locks_irq [2022-11-03 02:03:49,878 INFO L130 BoogieDeclarations]: Found specification of procedure lock_acquire [2022-11-03 02:03:49,879 INFO L138 BoogieDeclarations]: Found implementation of procedure lock_acquire [2022-11-03 02:03:49,879 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2022-11-03 02:03:49,879 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2022-11-03 02:03:49,879 INFO L130 BoogieDeclarations]: Found specification of procedure raid5_free [2022-11-03 02:03:49,879 INFO L138 BoogieDeclarations]: Found implementation of procedure raid5_free [2022-11-03 02:03:49,879 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_rcu_suspicious [2022-11-03 02:03:49,879 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_rcu_suspicious [2022-11-03 02:03:49,880 INFO L130 BoogieDeclarations]: Found specification of procedure calc_degraded [2022-11-03 02:03:49,880 INFO L138 BoogieDeclarations]: Found implementation of procedure calc_degraded [2022-11-03 02:03:49,880 INFO L130 BoogieDeclarations]: Found specification of procedure algorithm_valid_raid6 [2022-11-03 02:03:49,880 INFO L138 BoogieDeclarations]: Found implementation of procedure algorithm_valid_raid6 [2022-11-03 02:03:49,880 INFO L130 BoogieDeclarations]: Found specification of procedure algorithm_valid_raid5 [2022-11-03 02:03:49,880 INFO L138 BoogieDeclarations]: Found implementation of procedure algorithm_valid_raid5 [2022-11-03 02:03:49,880 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-11-03 02:03:49,881 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-11-03 02:03:49,881 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_irq_136 [2022-11-03 02:03:49,881 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_irq_136 [2022-11-03 02:03:49,881 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_add_return [2022-11-03 02:03:49,881 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_add_return [2022-11-03 02:03:49,881 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_sched_check_final_state [2022-11-03 02:03:49,881 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_sched_check_final_state [2022-11-03 02:03:49,881 INFO L130 BoogieDeclarations]: Found specification of procedure error [2022-11-03 02:03:49,882 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2022-11-03 02:03:49,882 INFO L130 BoogieDeclarations]: Found specification of procedure kmem_cache_free [2022-11-03 02:03:49,882 INFO L138 BoogieDeclarations]: Found implementation of procedure kmem_cache_free [2022-11-03 02:03:49,882 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-11-03 02:03:49,882 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-11-03 02:03:49,882 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_irq_121 [2022-11-03 02:03:49,882 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_irq_121 [2022-11-03 02:03:49,883 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_unlock [2022-11-03 02:03:49,883 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_unlock [2022-11-03 02:03:49,883 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-03 02:03:51,334 INFO L235 CfgBuilder]: Building ICFG [2022-11-03 02:03:51,358 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-03 02:03:51,794 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-03 02:04:06,663 INFO L276 CfgBuilder]: Performing block encoding [2022-11-03 02:04:10,762 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-03 02:04:10,762 INFO L300 CfgBuilder]: Removed 10 assume(true) statements. [2022-11-03 02:04:10,771 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:04:10 BoogieIcfgContainer [2022-11-03 02:04:10,772 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-03 02:04:10,775 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-03 02:04:10,776 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-03 02:04:10,779 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-03 02:04:10,780 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 02:03:36" (1/3) ... [2022-11-03 02:04:10,781 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36e1f895 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 02:04:10, skipping insertion in model container [2022-11-03 02:04:10,781 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:03:48" (2/3) ... [2022-11-03 02:04:10,783 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36e1f895 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 02:04:10, skipping insertion in model container [2022-11-03 02:04:10,783 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:04:10" (3/3) ... [2022-11-03 02:04:10,784 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.0-rc1---drivers--md--raid456.ko.cil.i [2022-11-03 02:04:10,805 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-03 02:04:10,806 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 33 error locations. [2022-11-03 02:04:10,960 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-03 02:04:10,972 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@5990293, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-03 02:04:10,973 INFO L358 AbstractCegarLoop]: Starting to check reachability of 33 error locations. [2022-11-03 02:04:10,991 INFO L276 IsEmpty]: Start isEmpty. Operand has 3334 states, 1918 states have (on average 1.3415015641293013) internal successors, (2573), 2076 states have internal predecessors, (2573), 1149 states have call successors, (1149), 234 states have call predecessors, (1149), 233 states have return successors, (1141), 1120 states have call predecessors, (1141), 1141 states have call successors, (1141) [2022-11-03 02:04:11,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-11-03 02:04:11,009 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:04:11,010 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:04:11,011 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_linux_arch_io_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-03 02:04:11,019 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:04:11,020 INFO L85 PathProgramCache]: Analyzing trace with hash -1054182976, now seen corresponding path program 1 times [2022-11-03 02:04:11,032 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:04:11,033 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1620734663] [2022-11-03 02:04:11,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:04:11,034 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:04:11,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:04:12,385 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-03 02:04:12,386 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:04:12,386 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1620734663] [2022-11-03 02:04:12,387 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1620734663] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:04:12,387 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:04:12,388 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 02:04:12,390 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [53327572] [2022-11-03 02:04:12,390 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:04:12,395 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 02:04:12,396 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:04:12,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 02:04:12,436 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 02:04:12,446 INFO L87 Difference]: Start difference. First operand has 3334 states, 1918 states have (on average 1.3415015641293013) internal successors, (2573), 2076 states have internal predecessors, (2573), 1149 states have call successors, (1149), 234 states have call predecessors, (1149), 233 states have return successors, (1141), 1120 states have call predecessors, (1141), 1141 states have call successors, (1141) Second operand has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-11-03 02:04:16,046 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:04:18,758 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:04:21,298 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:04:23,523 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:04:24,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:04:24,772 INFO L93 Difference]: Finished difference Result 7491 states and 11145 transitions. [2022-11-03 02:04:24,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-03 02:04:24,775 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 38 [2022-11-03 02:04:24,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:04:24,827 INFO L225 Difference]: With dead ends: 7491 [2022-11-03 02:04:24,827 INFO L226 Difference]: Without dead ends: 4149 [2022-11-03 02:04:24,860 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-03 02:04:24,863 INFO L413 NwaCegarLoop]: 4716 mSDtfsCounter, 4752 mSDsluCounter, 6407 mSDsCounter, 0 mSdLazyCounter, 1218 mSolverCounterSat, 0 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4769 SdHoareTripleChecker+Valid, 10446 SdHoareTripleChecker+Invalid, 1222 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1218 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.6s IncrementalHoareTripleChecker+Time [2022-11-03 02:04:24,864 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4769 Valid, 10446 Invalid, 1222 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 1218 Invalid, 4 Unknown, 0 Unchecked, 11.6s Time] [2022-11-03 02:04:24,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4149 states. [2022-11-03 02:04:25,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4149 to 4131. [2022-11-03 02:04:25,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4131 states, 2359 states have (on average 1.3069097075031793) internal successors, (3083), 2542 states have internal predecessors, (3083), 1406 states have call successors, (1406), 335 states have call predecessors, (1406), 334 states have return successors, (1404), 1372 states have call predecessors, (1404), 1404 states have call successors, (1404) [2022-11-03 02:04:25,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4131 states to 4131 states and 5893 transitions. [2022-11-03 02:04:25,241 INFO L78 Accepts]: Start accepts. Automaton has 4131 states and 5893 transitions. Word has length 38 [2022-11-03 02:04:25,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:04:25,242 INFO L495 AbstractCegarLoop]: Abstraction has 4131 states and 5893 transitions. [2022-11-03 02:04:25,242 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-11-03 02:04:25,243 INFO L276 IsEmpty]: Start isEmpty. Operand 4131 states and 5893 transitions. [2022-11-03 02:04:25,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-11-03 02:04:25,253 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:04:25,254 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:04:25,254 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-03 02:04:25,255 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_linux_block_genhd_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-03 02:04:25,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:04:25,256 INFO L85 PathProgramCache]: Analyzing trace with hash 1222401184, now seen corresponding path program 1 times [2022-11-03 02:04:25,256 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:04:25,256 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2064096724] [2022-11-03 02:04:25,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:04:25,257 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:04:25,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:04:26,107 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-03 02:04:26,108 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:04:26,108 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2064096724] [2022-11-03 02:04:26,108 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2064096724] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:04:26,108 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:04:26,109 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 02:04:26,109 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1994509509] [2022-11-03 02:04:26,109 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:04:26,112 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 02:04:26,112 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:04:26,113 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 02:04:26,113 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 02:04:26,113 INFO L87 Difference]: Start difference. First operand 4131 states and 5893 transitions. Second operand has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-11-03 02:04:28,715 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:04:31,432 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:04:33,298 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:04:36,624 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:04:37,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:04:37,855 INFO L93 Difference]: Finished difference Result 4158 states and 5918 transitions. [2022-11-03 02:04:37,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-03 02:04:37,856 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 43 [2022-11-03 02:04:37,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:04:37,886 INFO L225 Difference]: With dead ends: 4158 [2022-11-03 02:04:37,886 INFO L226 Difference]: Without dead ends: 4156 [2022-11-03 02:04:37,889 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-03 02:04:37,890 INFO L413 NwaCegarLoop]: 4692 mSDtfsCounter, 4704 mSDsluCounter, 6411 mSDsCounter, 0 mSdLazyCounter, 1231 mSolverCounterSat, 0 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4718 SdHoareTripleChecker+Valid, 10415 SdHoareTripleChecker+Invalid, 1234 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1231 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.3s IncrementalHoareTripleChecker+Time [2022-11-03 02:04:37,890 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4718 Valid, 10415 Invalid, 1234 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 1231 Invalid, 3 Unknown, 0 Unchecked, 11.3s Time] [2022-11-03 02:04:37,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4156 states. [2022-11-03 02:04:38,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4156 to 4135. [2022-11-03 02:04:38,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4135 states, 2361 states have (on average 1.3062261753494282) internal successors, (3084), 2543 states have internal predecessors, (3084), 1406 states have call successors, (1406), 338 states have call predecessors, (1406), 337 states have return successors, (1404), 1372 states have call predecessors, (1404), 1404 states have call successors, (1404) [2022-11-03 02:04:38,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4135 states to 4135 states and 5894 transitions. [2022-11-03 02:04:38,179 INFO L78 Accepts]: Start accepts. Automaton has 4135 states and 5894 transitions. Word has length 43 [2022-11-03 02:04:38,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:04:38,180 INFO L495 AbstractCegarLoop]: Abstraction has 4135 states and 5894 transitions. [2022-11-03 02:04:38,180 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-11-03 02:04:38,181 INFO L276 IsEmpty]: Start isEmpty. Operand 4135 states and 5894 transitions. [2022-11-03 02:04:38,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-11-03 02:04:38,188 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:04:38,188 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:04:38,188 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-03 02:04:38,190 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_linux_block_queue_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-03 02:04:38,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:04:38,193 INFO L85 PathProgramCache]: Analyzing trace with hash 797800105, now seen corresponding path program 1 times [2022-11-03 02:04:38,193 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:04:38,193 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1929798352] [2022-11-03 02:04:38,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:04:38,194 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:04:38,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:04:38,723 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-03 02:04:38,724 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:04:38,724 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1929798352] [2022-11-03 02:04:38,724 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1929798352] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:04:38,724 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:04:38,725 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 02:04:38,725 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [803399598] [2022-11-03 02:04:38,725 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:04:38,726 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 02:04:38,726 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:04:38,726 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 02:04:38,727 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 02:04:38,727 INFO L87 Difference]: Start difference. First operand 4135 states and 5894 transitions. Second operand has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-11-03 02:04:41,283 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:04:43,849 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:04:46,548 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:04:48,958 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:04:50,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:04:50,043 INFO L93 Difference]: Finished difference Result 4156 states and 5916 transitions. [2022-11-03 02:04:50,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-03 02:04:50,044 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 48 [2022-11-03 02:04:50,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:04:50,180 INFO L225 Difference]: With dead ends: 4156 [2022-11-03 02:04:50,180 INFO L226 Difference]: Without dead ends: 4154 [2022-11-03 02:04:50,183 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-03 02:04:50,187 INFO L413 NwaCegarLoop]: 4690 mSDtfsCounter, 4694 mSDsluCounter, 6407 mSDsCounter, 0 mSdLazyCounter, 1227 mSolverCounterSat, 0 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4714 SdHoareTripleChecker+Valid, 10411 SdHoareTripleChecker+Invalid, 1231 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1227 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.0s IncrementalHoareTripleChecker+Time [2022-11-03 02:04:50,189 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4714 Valid, 10411 Invalid, 1231 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1227 Invalid, 4 Unknown, 0 Unchecked, 11.0s Time] [2022-11-03 02:04:50,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4154 states. [2022-11-03 02:04:50,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4154 to 4133. [2022-11-03 02:04:50,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4133 states, 2360 states have (on average 1.3059322033898304) internal successors, (3082), 2541 states have internal predecessors, (3082), 1406 states have call successors, (1406), 338 states have call predecessors, (1406), 337 states have return successors, (1404), 1372 states have call predecessors, (1404), 1404 states have call successors, (1404) [2022-11-03 02:04:50,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4133 states to 4133 states and 5892 transitions. [2022-11-03 02:04:50,532 INFO L78 Accepts]: Start accepts. Automaton has 4133 states and 5892 transitions. Word has length 48 [2022-11-03 02:04:50,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:04:50,533 INFO L495 AbstractCegarLoop]: Abstraction has 4133 states and 5892 transitions. [2022-11-03 02:04:50,534 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-11-03 02:04:50,535 INFO L276 IsEmpty]: Start isEmpty. Operand 4133 states and 5892 transitions. [2022-11-03 02:04:50,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-11-03 02:04:50,536 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:04:50,537 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:04:50,537 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-03 02:04:50,537 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_linux_block_request_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-03 02:04:50,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:04:50,538 INFO L85 PathProgramCache]: Analyzing trace with hash -871618365, now seen corresponding path program 1 times [2022-11-03 02:04:50,538 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:04:50,539 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1435315906] [2022-11-03 02:04:50,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:04:50,539 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:04:50,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:04:51,065 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-03 02:04:51,065 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:04:51,065 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1435315906] [2022-11-03 02:04:51,065 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1435315906] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:04:51,066 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:04:51,066 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 02:04:51,066 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1526684436] [2022-11-03 02:04:51,066 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:04:51,067 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 02:04:51,067 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:04:51,067 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 02:04:51,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 02:04:51,068 INFO L87 Difference]: Start difference. First operand 4133 states and 5892 transitions. Second operand has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-11-03 02:04:54,144 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:04:57,601 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:04:59,961 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:05:02,203 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:05:03,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:05:03,458 INFO L93 Difference]: Finished difference Result 4151 states and 5909 transitions. [2022-11-03 02:05:03,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-03 02:05:03,459 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 53 [2022-11-03 02:05:03,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:05:03,485 INFO L225 Difference]: With dead ends: 4151 [2022-11-03 02:05:03,485 INFO L226 Difference]: Without dead ends: 4149 [2022-11-03 02:05:03,489 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-03 02:05:03,490 INFO L413 NwaCegarLoop]: 4688 mSDtfsCounter, 4727 mSDsluCounter, 6374 mSDsCounter, 0 mSdLazyCounter, 1217 mSolverCounterSat, 0 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4738 SdHoareTripleChecker+Valid, 10385 SdHoareTripleChecker+Invalid, 1221 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1217 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.1s IncrementalHoareTripleChecker+Time [2022-11-03 02:05:03,490 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4738 Valid, 10385 Invalid, 1221 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1217 Invalid, 4 Unknown, 0 Unchecked, 12.1s Time] [2022-11-03 02:05:03,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4149 states. [2022-11-03 02:05:03,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4149 to 4131. [2022-11-03 02:05:03,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4131 states, 2359 states have (on average 1.3056379821958457) internal successors, (3080), 2539 states have internal predecessors, (3080), 1406 states have call successors, (1406), 338 states have call predecessors, (1406), 337 states have return successors, (1404), 1372 states have call predecessors, (1404), 1404 states have call successors, (1404) [2022-11-03 02:05:03,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4131 states to 4131 states and 5890 transitions. [2022-11-03 02:05:03,925 INFO L78 Accepts]: Start accepts. Automaton has 4131 states and 5890 transitions. Word has length 53 [2022-11-03 02:05:03,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:05:03,926 INFO L495 AbstractCegarLoop]: Abstraction has 4131 states and 5890 transitions. [2022-11-03 02:05:03,926 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-11-03 02:05:03,927 INFO L276 IsEmpty]: Start isEmpty. Operand 4131 states and 5890 transitions. [2022-11-03 02:05:03,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-11-03 02:05:03,929 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:05:03,929 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:05:03,929 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-03 02:05:03,930 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_linux_drivers_base_class_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-03 02:05:03,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:05:03,931 INFO L85 PathProgramCache]: Analyzing trace with hash 2025891630, now seen corresponding path program 1 times [2022-11-03 02:05:03,931 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:05:03,931 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1082899309] [2022-11-03 02:05:03,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:05:03,932 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:05:04,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:05:04,582 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-03 02:05:04,582 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:05:04,582 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1082899309] [2022-11-03 02:05:04,583 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1082899309] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:05:04,583 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:05:04,583 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 02:05:04,584 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [580880540] [2022-11-03 02:05:04,584 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:05:04,584 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 02:05:04,585 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:05:04,585 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 02:05:04,585 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 02:05:04,586 INFO L87 Difference]: Start difference. First operand 4131 states and 5890 transitions. Second operand has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-03 02:05:07,136 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:05:09,791 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:05:11,393 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:05:14,483 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:05:15,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:05:15,463 INFO L93 Difference]: Finished difference Result 4152 states and 5912 transitions. [2022-11-03 02:05:15,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-03 02:05:15,464 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 58 [2022-11-03 02:05:15,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:05:15,486 INFO L225 Difference]: With dead ends: 4152 [2022-11-03 02:05:15,486 INFO L226 Difference]: Without dead ends: 4150 [2022-11-03 02:05:15,489 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-03 02:05:15,490 INFO L413 NwaCegarLoop]: 4686 mSDtfsCounter, 4695 mSDsluCounter, 6405 mSDsCounter, 0 mSdLazyCounter, 1231 mSolverCounterSat, 0 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4709 SdHoareTripleChecker+Valid, 10403 SdHoareTripleChecker+Invalid, 1234 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1231 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.5s IncrementalHoareTripleChecker+Time [2022-11-03 02:05:15,490 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4709 Valid, 10403 Invalid, 1234 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1231 Invalid, 3 Unknown, 0 Unchecked, 10.5s Time] [2022-11-03 02:05:15,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4150 states. [2022-11-03 02:05:15,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4150 to 4129. [2022-11-03 02:05:15,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4129 states, 2358 states have (on average 1.3053435114503817) internal successors, (3078), 2537 states have internal predecessors, (3078), 1406 states have call successors, (1406), 338 states have call predecessors, (1406), 337 states have return successors, (1404), 1372 states have call predecessors, (1404), 1404 states have call successors, (1404) [2022-11-03 02:05:15,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4129 states to 4129 states and 5888 transitions. [2022-11-03 02:05:15,780 INFO L78 Accepts]: Start accepts. Automaton has 4129 states and 5888 transitions. Word has length 58 [2022-11-03 02:05:15,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:05:15,781 INFO L495 AbstractCegarLoop]: Abstraction has 4129 states and 5888 transitions. [2022-11-03 02:05:15,781 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-03 02:05:15,782 INFO L276 IsEmpty]: Start isEmpty. Operand 4129 states and 5888 transitions. [2022-11-03 02:05:15,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-11-03 02:05:15,783 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:05:15,784 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:05:15,784 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-03 02:05:15,784 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_linux_fs_char_dev_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-03 02:05:15,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:05:15,785 INFO L85 PathProgramCache]: Analyzing trace with hash -1189215320, now seen corresponding path program 1 times [2022-11-03 02:05:15,785 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:05:15,785 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2131243546] [2022-11-03 02:05:15,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:05:15,786 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:05:15,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:05:16,301 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-03 02:05:16,301 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:05:16,301 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2131243546] [2022-11-03 02:05:16,302 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2131243546] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:05:16,302 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:05:16,302 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 02:05:16,302 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [41004835] [2022-11-03 02:05:16,302 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:05:16,303 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 02:05:16,303 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:05:16,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 02:05:16,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 02:05:16,304 INFO L87 Difference]: Start difference. First operand 4129 states and 5888 transitions. Second operand has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-03 02:05:18,853 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:05:21,468 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:05:24,078 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:05:26,505 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:05:27,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:05:27,446 INFO L93 Difference]: Finished difference Result 4150 states and 5910 transitions. [2022-11-03 02:05:27,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-03 02:05:27,447 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 63 [2022-11-03 02:05:27,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:05:27,472 INFO L225 Difference]: With dead ends: 4150 [2022-11-03 02:05:27,472 INFO L226 Difference]: Without dead ends: 4148 [2022-11-03 02:05:27,476 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-03 02:05:27,476 INFO L413 NwaCegarLoop]: 4684 mSDtfsCounter, 4685 mSDsluCounter, 6402 mSDsCounter, 0 mSdLazyCounter, 1229 mSolverCounterSat, 0 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4705 SdHoareTripleChecker+Valid, 10399 SdHoareTripleChecker+Invalid, 1233 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1229 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.8s IncrementalHoareTripleChecker+Time [2022-11-03 02:05:27,477 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4705 Valid, 10399 Invalid, 1233 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1229 Invalid, 4 Unknown, 0 Unchecked, 10.8s Time] [2022-11-03 02:05:27,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4148 states. [2022-11-03 02:05:27,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4148 to 4127. [2022-11-03 02:05:27,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4127 states, 2357 states have (on average 1.3050487908358082) internal successors, (3076), 2535 states have internal predecessors, (3076), 1406 states have call successors, (1406), 338 states have call predecessors, (1406), 337 states have return successors, (1404), 1372 states have call predecessors, (1404), 1404 states have call successors, (1404) [2022-11-03 02:05:27,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4127 states to 4127 states and 5886 transitions. [2022-11-03 02:05:27,770 INFO L78 Accepts]: Start accepts. Automaton has 4127 states and 5886 transitions. Word has length 63 [2022-11-03 02:05:27,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:05:27,771 INFO L495 AbstractCegarLoop]: Abstraction has 4127 states and 5886 transitions. [2022-11-03 02:05:27,771 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-03 02:05:27,771 INFO L276 IsEmpty]: Start isEmpty. Operand 4127 states and 5886 transitions. [2022-11-03 02:05:27,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-11-03 02:05:27,772 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:05:27,773 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:05:27,773 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-03 02:05:27,773 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-03 02:05:27,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:05:27,774 INFO L85 PathProgramCache]: Analyzing trace with hash -1694009057, now seen corresponding path program 1 times [2022-11-03 02:05:27,774 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:05:27,774 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [892455227] [2022-11-03 02:05:27,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:05:27,775 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:05:27,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:05:28,211 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-03 02:05:28,211 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:05:28,212 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [892455227] [2022-11-03 02:05:28,212 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [892455227] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:05:28,212 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:05:28,212 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 02:05:28,212 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [349980580] [2022-11-03 02:05:28,213 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:05:28,213 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 02:05:28,213 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:05:28,214 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 02:05:28,214 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 02:05:28,214 INFO L87 Difference]: Start difference. First operand 4127 states and 5886 transitions. Second operand has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-03 02:05:30,780 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:05:33,737 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:05:35,953 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:05:37,972 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:05:41,607 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:05:44,295 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:05:46,852 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:05:47,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:05:47,579 INFO L93 Difference]: Finished difference Result 8214 states and 11725 transitions. [2022-11-03 02:05:47,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-03 02:05:47,581 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 68 [2022-11-03 02:05:47,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:05:47,629 INFO L225 Difference]: With dead ends: 8214 [2022-11-03 02:05:47,629 INFO L226 Difference]: Without dead ends: 8212 [2022-11-03 02:05:47,636 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-03 02:05:47,637 INFO L413 NwaCegarLoop]: 5963 mSDtfsCounter, 4727 mSDsluCounter, 11364 mSDsCounter, 0 mSdLazyCounter, 1763 mSolverCounterSat, 1 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4731 SdHoareTripleChecker+Valid, 16185 SdHoareTripleChecker+Invalid, 1770 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1763 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.7s IncrementalHoareTripleChecker+Time [2022-11-03 02:05:47,638 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4731 Valid, 16185 Invalid, 1770 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 1763 Invalid, 6 Unknown, 0 Unchecked, 18.7s Time] [2022-11-03 02:05:47,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8212 states. [2022-11-03 02:05:48,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8212 to 8080. [2022-11-03 02:05:48,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8080 states, 4621 states have (on average 1.3066435836399048) internal successors, (6038), 4952 states have internal predecessors, (6038), 2775 states have call successors, (2775), 658 states have call predecessors, (2775), 657 states have return successors, (2779), 2707 states have call predecessors, (2779), 2773 states have call successors, (2779) [2022-11-03 02:05:48,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8080 states to 8080 states and 11592 transitions. [2022-11-03 02:05:48,362 INFO L78 Accepts]: Start accepts. Automaton has 8080 states and 11592 transitions. Word has length 68 [2022-11-03 02:05:48,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:05:48,363 INFO L495 AbstractCegarLoop]: Abstraction has 8080 states and 11592 transitions. [2022-11-03 02:05:48,363 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-03 02:05:48,364 INFO L276 IsEmpty]: Start isEmpty. Operand 8080 states and 11592 transitions. [2022-11-03 02:05:48,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-11-03 02:05:48,367 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:05:48,367 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:05:48,368 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-03 02:05:48,368 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_linux_kernel_locking_rwlock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-03 02:05:48,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:05:48,369 INFO L85 PathProgramCache]: Analyzing trace with hash 1440598843, now seen corresponding path program 1 times [2022-11-03 02:05:48,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:05:48,369 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [421054782] [2022-11-03 02:05:48,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:05:48,370 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:05:48,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:05:48,799 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-03 02:05:48,799 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:05:48,799 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [421054782] [2022-11-03 02:05:48,799 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [421054782] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:05:48,800 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:05:48,800 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 02:05:48,800 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1384241711] [2022-11-03 02:05:48,800 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:05:48,800 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 02:05:48,801 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:05:48,801 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 02:05:48,801 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 02:05:48,802 INFO L87 Difference]: Start difference. First operand 8080 states and 11592 transitions. Second operand has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-03 02:05:52,222 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:05:54,848 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:05:57,306 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:05:58,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:05:58,469 INFO L93 Difference]: Finished difference Result 8102 states and 11619 transitions. [2022-11-03 02:05:58,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-03 02:05:58,470 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 73 [2022-11-03 02:05:58,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:05:58,502 INFO L225 Difference]: With dead ends: 8102 [2022-11-03 02:05:58,503 INFO L226 Difference]: Without dead ends: 8100 [2022-11-03 02:05:58,506 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-03 02:05:58,507 INFO L413 NwaCegarLoop]: 4682 mSDtfsCounter, 4714 mSDsluCounter, 6363 mSDsCounter, 0 mSdLazyCounter, 1217 mSolverCounterSat, 0 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4731 SdHoareTripleChecker+Valid, 10369 SdHoareTripleChecker+Invalid, 1220 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1217 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.0s IncrementalHoareTripleChecker+Time [2022-11-03 02:05:58,508 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4731 Valid, 10369 Invalid, 1220 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1217 Invalid, 3 Unknown, 0 Unchecked, 9.0s Time] [2022-11-03 02:05:58,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8100 states. [2022-11-03 02:05:59,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8100 to 8078. [2022-11-03 02:05:59,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8078 states, 4620 states have (on average 1.3064935064935066) internal successors, (6036), 4950 states have internal predecessors, (6036), 2775 states have call successors, (2775), 658 states have call predecessors, (2775), 657 states have return successors, (2779), 2707 states have call predecessors, (2779), 2773 states have call successors, (2779) [2022-11-03 02:05:59,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8078 states to 8078 states and 11590 transitions. [2022-11-03 02:05:59,135 INFO L78 Accepts]: Start accepts. Automaton has 8078 states and 11590 transitions. Word has length 73 [2022-11-03 02:05:59,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:05:59,137 INFO L495 AbstractCegarLoop]: Abstraction has 8078 states and 11590 transitions. [2022-11-03 02:05:59,137 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-03 02:05:59,137 INFO L276 IsEmpty]: Start isEmpty. Operand 8078 states and 11590 transitions. [2022-11-03 02:05:59,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-11-03 02:05:59,139 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:05:59,139 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:05:59,139 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-03 02:05:59,140 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_linux_kernel_locking_rwlock_check_final_stateErr1ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-03 02:05:59,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:05:59,140 INFO L85 PathProgramCache]: Analyzing trace with hash 1436307038, now seen corresponding path program 1 times [2022-11-03 02:05:59,140 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:05:59,141 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1020969426] [2022-11-03 02:05:59,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:05:59,141 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:05:59,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:05:59,536 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-03 02:05:59,536 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:05:59,537 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1020969426] [2022-11-03 02:05:59,537 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1020969426] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:05:59,537 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:05:59,537 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 02:05:59,537 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [631309750] [2022-11-03 02:05:59,538 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:05:59,539 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 02:05:59,539 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:05:59,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 02:05:59,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 02:05:59,540 INFO L87 Difference]: Start difference. First operand 8078 states and 11590 transitions. Second operand has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-03 02:06:02,159 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:06:04,726 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:06:07,318 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:06:10,336 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:06:11,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:06:11,081 INFO L93 Difference]: Finished difference Result 8083 states and 11599 transitions. [2022-11-03 02:06:11,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-03 02:06:11,083 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 75 [2022-11-03 02:06:11,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:06:11,119 INFO L225 Difference]: With dead ends: 8083 [2022-11-03 02:06:11,120 INFO L226 Difference]: Without dead ends: 8081 [2022-11-03 02:06:11,126 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-03 02:06:11,127 INFO L413 NwaCegarLoop]: 4258 mSDtfsCounter, 4720 mSDsluCounter, 4826 mSDsCounter, 0 mSdLazyCounter, 1071 mSolverCounterSat, 0 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4733 SdHoareTripleChecker+Valid, 8543 SdHoareTripleChecker+Invalid, 1075 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1071 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.9s IncrementalHoareTripleChecker+Time [2022-11-03 02:06:11,127 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4733 Valid, 8543 Invalid, 1075 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1071 Invalid, 4 Unknown, 0 Unchecked, 10.9s Time] [2022-11-03 02:06:11,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8081 states. [2022-11-03 02:06:11,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8081 to 8078. [2022-11-03 02:06:11,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8078 states, 4620 states have (on average 1.3062770562770563) internal successors, (6035), 4949 states have internal predecessors, (6035), 2775 states have call successors, (2775), 659 states have call predecessors, (2775), 658 states have return successors, (2779), 2707 states have call predecessors, (2779), 2773 states have call successors, (2779) [2022-11-03 02:06:11,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8078 states to 8078 states and 11589 transitions. [2022-11-03 02:06:11,890 INFO L78 Accepts]: Start accepts. Automaton has 8078 states and 11589 transitions. Word has length 75 [2022-11-03 02:06:11,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:06:11,891 INFO L495 AbstractCegarLoop]: Abstraction has 8078 states and 11589 transitions. [2022-11-03 02:06:11,891 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-03 02:06:11,891 INFO L276 IsEmpty]: Start isEmpty. Operand 8078 states and 11589 transitions. [2022-11-03 02:06:11,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-11-03 02:06:11,893 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:06:11,893 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:06:11,895 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-03 02:06:11,895 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_linux_kernel_module_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-03 02:06:11,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:06:11,901 INFO L85 PathProgramCache]: Analyzing trace with hash 103793524, now seen corresponding path program 1 times [2022-11-03 02:06:11,901 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:06:11,901 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [350578236] [2022-11-03 02:06:11,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:06:11,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:06:11,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:06:12,357 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-03 02:06:12,358 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:06:12,358 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [350578236] [2022-11-03 02:06:12,358 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [350578236] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:06:12,358 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:06:12,359 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 02:06:12,359 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1548779690] [2022-11-03 02:06:12,359 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:06:12,360 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 02:06:12,360 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:06:12,360 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 02:06:12,360 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 02:06:12,361 INFO L87 Difference]: Start difference. First operand 8078 states and 11589 transitions. Second operand has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-03 02:06:15,003 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:06:17,651 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:06:20,308 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:06:22,872 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:06:24,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:06:24,004 INFO L93 Difference]: Finished difference Result 8100 states and 11616 transitions. [2022-11-03 02:06:24,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-03 02:06:24,005 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 80 [2022-11-03 02:06:24,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:06:24,041 INFO L225 Difference]: With dead ends: 8100 [2022-11-03 02:06:24,041 INFO L226 Difference]: Without dead ends: 8098 [2022-11-03 02:06:24,046 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-03 02:06:24,047 INFO L413 NwaCegarLoop]: 4678 mSDtfsCounter, 4705 mSDsluCounter, 6363 mSDsCounter, 0 mSdLazyCounter, 1216 mSolverCounterSat, 0 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4722 SdHoareTripleChecker+Valid, 10365 SdHoareTripleChecker+Invalid, 1220 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1216 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.9s IncrementalHoareTripleChecker+Time [2022-11-03 02:06:24,048 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4722 Valid, 10365 Invalid, 1220 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1216 Invalid, 4 Unknown, 0 Unchecked, 10.9s Time] [2022-11-03 02:06:24,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8098 states. [2022-11-03 02:06:24,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8098 to 8076. [2022-11-03 02:06:24,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8076 states, 4619 states have (on average 1.3061268672872917) internal successors, (6033), 4947 states have internal predecessors, (6033), 2775 states have call successors, (2775), 659 states have call predecessors, (2775), 658 states have return successors, (2779), 2707 states have call predecessors, (2779), 2773 states have call successors, (2779) [2022-11-03 02:06:24,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8076 states to 8076 states and 11587 transitions. [2022-11-03 02:06:24,887 INFO L78 Accepts]: Start accepts. Automaton has 8076 states and 11587 transitions. Word has length 80 [2022-11-03 02:06:24,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:06:24,888 INFO L495 AbstractCegarLoop]: Abstraction has 8076 states and 11587 transitions. [2022-11-03 02:06:24,889 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-03 02:06:24,889 INFO L276 IsEmpty]: Start isEmpty. Operand 8076 states and 11587 transitions. [2022-11-03 02:06:24,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-11-03 02:06:24,892 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:06:24,892 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:06:24,892 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-03 02:06:24,892 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_linux_kernel_rcu_update_lock_bh_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-03 02:06:24,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:06:24,893 INFO L85 PathProgramCache]: Analyzing trace with hash -592117768, now seen corresponding path program 1 times [2022-11-03 02:06:24,893 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:06:24,894 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2105575] [2022-11-03 02:06:24,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:06:24,894 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:06:24,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:06:25,338 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-03 02:06:25,338 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:06:25,338 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2105575] [2022-11-03 02:06:25,339 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2105575] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:06:25,339 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:06:25,339 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 02:06:25,339 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1163664838] [2022-11-03 02:06:25,339 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:06:25,340 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 02:06:25,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:06:25,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 02:06:25,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 02:06:25,341 INFO L87 Difference]: Start difference. First operand 8076 states and 11587 transitions. Second operand has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-11-03 02:06:28,615 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:06:31,167 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:06:34,163 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:06:35,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:06:35,059 INFO L93 Difference]: Finished difference Result 8076 states and 11587 transitions. [2022-11-03 02:06:35,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-03 02:06:35,062 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 85 [2022-11-03 02:06:35,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:06:35,096 INFO L225 Difference]: With dead ends: 8076 [2022-11-03 02:06:35,097 INFO L226 Difference]: Without dead ends: 8074 [2022-11-03 02:06:35,100 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-03 02:06:35,101 INFO L413 NwaCegarLoop]: 4253 mSDtfsCounter, 4745 mSDsluCounter, 4787 mSDsCounter, 0 mSdLazyCounter, 1060 mSolverCounterSat, 0 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4755 SdHoareTripleChecker+Valid, 8511 SdHoareTripleChecker+Invalid, 1063 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1060 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.0s IncrementalHoareTripleChecker+Time [2022-11-03 02:06:35,102 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4755 Valid, 8511 Invalid, 1063 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1060 Invalid, 3 Unknown, 0 Unchecked, 9.0s Time] [2022-11-03 02:06:35,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8074 states. [2022-11-03 02:06:35,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8074 to 8074. [2022-11-03 02:06:35,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8074 states, 4618 states have (on average 1.3059766132524901) internal successors, (6031), 4945 states have internal predecessors, (6031), 2775 states have call successors, (2775), 659 states have call predecessors, (2775), 658 states have return successors, (2779), 2707 states have call predecessors, (2779), 2773 states have call successors, (2779) [2022-11-03 02:06:35,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8074 states to 8074 states and 11585 transitions. [2022-11-03 02:06:35,872 INFO L78 Accepts]: Start accepts. Automaton has 8074 states and 11585 transitions. Word has length 85 [2022-11-03 02:06:35,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:06:35,873 INFO L495 AbstractCegarLoop]: Abstraction has 8074 states and 11585 transitions. [2022-11-03 02:06:35,873 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-11-03 02:06:35,873 INFO L276 IsEmpty]: Start isEmpty. Operand 8074 states and 11585 transitions. [2022-11-03 02:06:35,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-11-03 02:06:35,875 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:06:35,875 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:06:35,876 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-03 02:06:35,876 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_linux_kernel_rcu_update_lock_sched_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-03 02:06:35,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:06:35,876 INFO L85 PathProgramCache]: Analyzing trace with hash -1747711606, now seen corresponding path program 1 times [2022-11-03 02:06:35,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:06:35,877 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [639165125] [2022-11-03 02:06:35,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:06:35,877 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:06:35,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:06:36,361 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-03 02:06:36,362 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:06:36,362 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [639165125] [2022-11-03 02:06:36,362 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [639165125] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:06:36,363 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:06:36,363 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 02:06:36,363 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [234320611] [2022-11-03 02:06:36,363 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:06:36,364 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 02:06:36,364 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:06:36,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 02:06:36,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 02:06:36,365 INFO L87 Difference]: Start difference. First operand 8074 states and 11585 transitions. Second operand has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-11-03 02:06:38,926 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:06:41,526 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:06:43,477 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:06:45,496 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:06:48,075 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:06:49,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:06:49,276 INFO L93 Difference]: Finished difference Result 8099 states and 11620 transitions. [2022-11-03 02:06:49,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-03 02:06:49,277 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 90 [2022-11-03 02:06:49,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:06:49,370 INFO L225 Difference]: With dead ends: 8099 [2022-11-03 02:06:49,370 INFO L226 Difference]: Without dead ends: 8097 [2022-11-03 02:06:49,373 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-03 02:06:49,374 INFO L413 NwaCegarLoop]: 4674 mSDtfsCounter, 4677 mSDsluCounter, 6392 mSDsCounter, 0 mSdLazyCounter, 1230 mSolverCounterSat, 0 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4691 SdHoareTripleChecker+Valid, 10379 SdHoareTripleChecker+Invalid, 1234 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1230 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.2s IncrementalHoareTripleChecker+Time [2022-11-03 02:06:49,374 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4691 Valid, 10379 Invalid, 1234 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1230 Invalid, 4 Unknown, 0 Unchecked, 12.2s Time] [2022-11-03 02:06:49,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8097 states. [2022-11-03 02:06:50,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8097 to 8072. [2022-11-03 02:06:50,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8072 states, 4617 states have (on average 1.3058262941303878) internal successors, (6029), 4943 states have internal predecessors, (6029), 2775 states have call successors, (2775), 659 states have call predecessors, (2775), 658 states have return successors, (2779), 2707 states have call predecessors, (2779), 2773 states have call successors, (2779) [2022-11-03 02:06:50,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8072 states to 8072 states and 11583 transitions. [2022-11-03 02:06:50,163 INFO L78 Accepts]: Start accepts. Automaton has 8072 states and 11583 transitions. Word has length 90 [2022-11-03 02:06:50,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:06:50,164 INFO L495 AbstractCegarLoop]: Abstraction has 8072 states and 11583 transitions. [2022-11-03 02:06:50,164 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-11-03 02:06:50,165 INFO L276 IsEmpty]: Start isEmpty. Operand 8072 states and 11583 transitions. [2022-11-03 02:06:50,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-11-03 02:06:50,167 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:06:50,167 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:06:50,168 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-03 02:06:50,168 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-03 02:06:50,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:06:50,168 INFO L85 PathProgramCache]: Analyzing trace with hash -74329135, now seen corresponding path program 1 times [2022-11-03 02:06:50,169 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:06:50,169 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1184406648] [2022-11-03 02:06:50,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:06:50,169 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:06:50,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:06:50,671 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-03 02:06:50,671 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:06:50,671 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1184406648] [2022-11-03 02:06:50,672 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1184406648] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:06:50,672 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:06:50,672 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 02:06:50,672 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1756936805] [2022-11-03 02:06:50,673 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:06:50,674 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 02:06:50,674 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:06:50,674 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 02:06:50,675 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 02:06:50,675 INFO L87 Difference]: Start difference. First operand 8072 states and 11583 transitions. Second operand has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-03 02:06:53,408 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:06:56,155 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:06:58,243 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:07:00,258 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:07:02,399 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:07:04,133 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.73s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:07:06,997 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:07:09,691 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:07:12,335 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:07:13,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:07:13,602 INFO L93 Difference]: Finished difference Result 11849 states and 16999 transitions. [2022-11-03 02:07:13,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-03 02:07:13,604 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 95 [2022-11-03 02:07:13,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:07:13,649 INFO L225 Difference]: With dead ends: 11849 [2022-11-03 02:07:13,649 INFO L226 Difference]: Without dead ends: 11847 [2022-11-03 02:07:13,655 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-03 02:07:13,656 INFO L413 NwaCegarLoop]: 6096 mSDtfsCounter, 4257 mSDsluCounter, 11562 mSDsCounter, 0 mSdLazyCounter, 1844 mSolverCounterSat, 1 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4261 SdHoareTripleChecker+Valid, 16478 SdHoareTripleChecker+Invalid, 1852 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1844 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.8s IncrementalHoareTripleChecker+Time [2022-11-03 02:07:13,656 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4261 Valid, 16478 Invalid, 1852 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1844 Invalid, 7 Unknown, 0 Unchecked, 21.8s Time] [2022-11-03 02:07:13,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11847 states. [2022-11-03 02:07:14,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11847 to 11749. [2022-11-03 02:07:14,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11749 states, 6719 states have (on average 1.3059979163566007) internal successors, (8775), 7192 states have internal predecessors, (8775), 4041 states have call successors, (4041), 970 states have call predecessors, (4041), 967 states have return successors, (4080), 3929 states have call predecessors, (4080), 4039 states have call successors, (4080) [2022-11-03 02:07:14,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11749 states to 11749 states and 16896 transitions. [2022-11-03 02:07:14,598 INFO L78 Accepts]: Start accepts. Automaton has 11749 states and 16896 transitions. Word has length 95 [2022-11-03 02:07:14,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:07:14,599 INFO L495 AbstractCegarLoop]: Abstraction has 11749 states and 16896 transitions. [2022-11-03 02:07:14,599 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-03 02:07:14,600 INFO L276 IsEmpty]: Start isEmpty. Operand 11749 states and 16896 transitions. [2022-11-03 02:07:14,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2022-11-03 02:07:14,601 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:07:14,602 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:07:14,602 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-03 02:07:14,602 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_linux_kernel_rcu_srcu_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-03 02:07:14,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:07:14,603 INFO L85 PathProgramCache]: Analyzing trace with hash -995982564, now seen corresponding path program 1 times [2022-11-03 02:07:14,603 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:07:14,603 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1953443903] [2022-11-03 02:07:14,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:07:14,603 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:07:14,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:07:15,053 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-03 02:07:15,054 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:07:15,054 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1953443903] [2022-11-03 02:07:15,054 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1953443903] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:07:15,054 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:07:15,055 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 02:07:15,055 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [473977383] [2022-11-03 02:07:15,055 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:07:15,055 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 02:07:15,056 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:07:15,056 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 02:07:15,056 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 02:07:15,057 INFO L87 Difference]: Start difference. First operand 11749 states and 16896 transitions. Second operand has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-03 02:07:18,240 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:07:20,919 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:07:23,271 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:07:25,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:07:25,544 INFO L93 Difference]: Finished difference Result 11758 states and 16911 transitions. [2022-11-03 02:07:25,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-03 02:07:25,546 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 100 [2022-11-03 02:07:25,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:07:25,579 INFO L225 Difference]: With dead ends: 11758 [2022-11-03 02:07:25,580 INFO L226 Difference]: Without dead ends: 11756 [2022-11-03 02:07:25,584 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-03 02:07:25,585 INFO L413 NwaCegarLoop]: 4250 mSDtfsCounter, 4737 mSDsluCounter, 4784 mSDsCounter, 0 mSdLazyCounter, 1057 mSolverCounterSat, 0 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4750 SdHoareTripleChecker+Valid, 8507 SdHoareTripleChecker+Invalid, 1060 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1057 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.5s IncrementalHoareTripleChecker+Time [2022-11-03 02:07:25,585 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4750 Valid, 8507 Invalid, 1060 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1057 Invalid, 3 Unknown, 0 Unchecked, 9.5s Time] [2022-11-03 02:07:25,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11756 states. [2022-11-03 02:07:26,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11756 to 11747. [2022-11-03 02:07:26,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11747 states, 6718 states have (on average 1.3058946114915153) internal successors, (8773), 7190 states have internal predecessors, (8773), 4041 states have call successors, (4041), 970 states have call predecessors, (4041), 967 states have return successors, (4080), 3929 states have call predecessors, (4080), 4039 states have call successors, (4080) [2022-11-03 02:07:26,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11747 states to 11747 states and 16894 transitions. [2022-11-03 02:07:26,627 INFO L78 Accepts]: Start accepts. Automaton has 11747 states and 16894 transitions. Word has length 100 [2022-11-03 02:07:26,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:07:26,628 INFO L495 AbstractCegarLoop]: Abstraction has 11747 states and 16894 transitions. [2022-11-03 02:07:26,628 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-03 02:07:26,628 INFO L276 IsEmpty]: Start isEmpty. Operand 11747 states and 16894 transitions. [2022-11-03 02:07:26,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2022-11-03 02:07:26,630 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:07:26,631 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:07:26,631 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-03 02:07:26,631 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_linux_lib_idr_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-03 02:07:26,631 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:07:26,632 INFO L85 PathProgramCache]: Analyzing trace with hash -144471570, now seen corresponding path program 1 times [2022-11-03 02:07:26,632 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:07:26,632 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1731400848] [2022-11-03 02:07:26,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:07:26,633 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:07:26,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:07:27,199 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-03 02:07:27,199 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:07:27,199 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1731400848] [2022-11-03 02:07:27,200 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1731400848] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:07:27,200 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:07:27,200 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 02:07:27,200 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [900431498] [2022-11-03 02:07:27,201 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:07:27,201 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 02:07:27,201 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:07:27,202 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 02:07:27,202 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 02:07:27,202 INFO L87 Difference]: Start difference. First operand 11747 states and 16894 transitions. Second operand has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-11-03 02:07:30,489 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:07:33,249 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:07:35,950 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:07:37,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:07:37,492 INFO L93 Difference]: Finished difference Result 11773 states and 16931 transitions. [2022-11-03 02:07:37,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-03 02:07:37,493 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 105 [2022-11-03 02:07:37,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:07:37,536 INFO L225 Difference]: With dead ends: 11773 [2022-11-03 02:07:37,536 INFO L226 Difference]: Without dead ends: 11771 [2022-11-03 02:07:37,543 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-03 02:07:37,544 INFO L413 NwaCegarLoop]: 4695 mSDtfsCounter, 4701 mSDsluCounter, 6379 mSDsCounter, 0 mSdLazyCounter, 1225 mSolverCounterSat, 0 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4716 SdHoareTripleChecker+Valid, 10394 SdHoareTripleChecker+Invalid, 1228 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1225 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.0s IncrementalHoareTripleChecker+Time [2022-11-03 02:07:37,544 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4716 Valid, 10394 Invalid, 1228 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1225 Invalid, 3 Unknown, 0 Unchecked, 9.0s Time] [2022-11-03 02:07:37,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11771 states. [2022-11-03 02:07:38,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11771 to 11745. [2022-11-03 02:07:38,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11745 states, 6717 states have (on average 1.3057912758672026) internal successors, (8771), 7188 states have internal predecessors, (8771), 4041 states have call successors, (4041), 970 states have call predecessors, (4041), 967 states have return successors, (4080), 3929 states have call predecessors, (4080), 4039 states have call successors, (4080) [2022-11-03 02:07:38,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11745 states to 11745 states and 16892 transitions. [2022-11-03 02:07:38,968 INFO L78 Accepts]: Start accepts. Automaton has 11745 states and 16892 transitions. Word has length 105 [2022-11-03 02:07:38,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:07:38,968 INFO L495 AbstractCegarLoop]: Abstraction has 11745 states and 16892 transitions. [2022-11-03 02:07:38,969 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-11-03 02:07:38,969 INFO L276 IsEmpty]: Start isEmpty. Operand 11745 states and 16892 transitions. [2022-11-03 02:07:38,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-11-03 02:07:38,971 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:07:38,972 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:07:38,972 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-03 02:07:38,972 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_linux_mmc_sdio_func_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-03 02:07:38,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:07:38,973 INFO L85 PathProgramCache]: Analyzing trace with hash 1909152623, now seen corresponding path program 1 times [2022-11-03 02:07:38,973 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:07:38,974 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1397950934] [2022-11-03 02:07:38,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:07:38,974 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:07:39,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:07:39,829 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-03 02:07:39,829 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:07:39,829 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1397950934] [2022-11-03 02:07:39,831 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1397950934] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:07:39,832 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:07:39,832 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 02:07:39,832 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1748340708] [2022-11-03 02:07:39,832 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:07:39,833 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 02:07:39,833 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:07:39,833 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 02:07:39,833 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 02:07:39,834 INFO L87 Difference]: Start difference. First operand 11745 states and 16892 transitions. Second operand has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-11-03 02:07:42,576 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:07:45,279 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:07:48,240 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.92s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:07:50,651 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:07:53,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:07:53,594 INFO L93 Difference]: Finished difference Result 11757 states and 16918 transitions. [2022-11-03 02:07:53,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-03 02:07:53,597 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 110 [2022-11-03 02:07:53,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:07:53,647 INFO L225 Difference]: With dead ends: 11757 [2022-11-03 02:07:53,647 INFO L226 Difference]: Without dead ends: 11755 [2022-11-03 02:07:53,656 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-03 02:07:53,657 INFO L413 NwaCegarLoop]: 4246 mSDtfsCounter, 4709 mSDsluCounter, 4816 mSDsCounter, 0 mSdLazyCounter, 1072 mSolverCounterSat, 0 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4719 SdHoareTripleChecker+Valid, 8521 SdHoareTripleChecker+Invalid, 1075 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1072 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.5s IncrementalHoareTripleChecker+Time [2022-11-03 02:07:53,658 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4719 Valid, 8521 Invalid, 1075 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1072 Invalid, 3 Unknown, 0 Unchecked, 12.5s Time] [2022-11-03 02:07:53,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11755 states. [2022-11-03 02:07:54,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11755 to 11743. [2022-11-03 02:07:54,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11743 states, 6716 states have (on average 1.3056879094699225) internal successors, (8769), 7186 states have internal predecessors, (8769), 4041 states have call successors, (4041), 970 states have call predecessors, (4041), 967 states have return successors, (4080), 3929 states have call predecessors, (4080), 4039 states have call successors, (4080) [2022-11-03 02:07:54,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11743 states to 11743 states and 16890 transitions. [2022-11-03 02:07:54,889 INFO L78 Accepts]: Start accepts. Automaton has 11743 states and 16890 transitions. Word has length 110 [2022-11-03 02:07:54,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:07:54,890 INFO L495 AbstractCegarLoop]: Abstraction has 11743 states and 16890 transitions. [2022-11-03 02:07:54,890 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-11-03 02:07:54,890 INFO L276 IsEmpty]: Start isEmpty. Operand 11743 states and 16890 transitions. [2022-11-03 02:07:54,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2022-11-03 02:07:54,897 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:07:54,897 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:07:54,897 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-03 02:07:54,898 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_linux_net_rtnetlink_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-03 02:07:54,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:07:54,898 INFO L85 PathProgramCache]: Analyzing trace with hash -648863455, now seen corresponding path program 1 times [2022-11-03 02:07:54,898 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:07:54,899 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1148438210] [2022-11-03 02:07:54,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:07:54,899 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:07:54,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:07:55,314 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-03 02:07:55,315 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:07:55,315 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1148438210] [2022-11-03 02:07:55,315 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1148438210] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:07:55,315 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:07:55,315 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 02:07:55,316 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [655121026] [2022-11-03 02:07:55,316 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:07:55,317 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 02:07:55,317 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:07:55,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 02:07:55,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 02:07:55,318 INFO L87 Difference]: Start difference. First operand 11743 states and 16890 transitions. Second operand has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-11-03 02:07:59,416 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:08:01,498 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:08:04,061 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:08:06,397 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:08:07,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:08:07,899 INFO L93 Difference]: Finished difference Result 11769 states and 16927 transitions. [2022-11-03 02:08:07,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-03 02:08:07,900 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 115 [2022-11-03 02:08:07,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:08:07,937 INFO L225 Difference]: With dead ends: 11769 [2022-11-03 02:08:07,937 INFO L226 Difference]: Without dead ends: 11767 [2022-11-03 02:08:07,942 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-03 02:08:07,943 INFO L413 NwaCegarLoop]: 4691 mSDtfsCounter, 4695 mSDsluCounter, 6375 mSDsCounter, 0 mSdLazyCounter, 1224 mSolverCounterSat, 0 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4710 SdHoareTripleChecker+Valid, 10386 SdHoareTripleChecker+Invalid, 1228 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1224 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.1s IncrementalHoareTripleChecker+Time [2022-11-03 02:08:07,943 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4710 Valid, 10386 Invalid, 1228 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1224 Invalid, 4 Unknown, 0 Unchecked, 11.1s Time] [2022-11-03 02:08:07,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11767 states. [2022-11-03 02:08:09,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11767 to 11741. [2022-11-03 02:08:09,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11741 states, 6715 states have (on average 1.305584512285927) internal successors, (8767), 7184 states have internal predecessors, (8767), 4041 states have call successors, (4041), 970 states have call predecessors, (4041), 967 states have return successors, (4080), 3929 states have call predecessors, (4080), 4039 states have call successors, (4080) [2022-11-03 02:08:09,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11741 states to 11741 states and 16888 transitions. [2022-11-03 02:08:09,759 INFO L78 Accepts]: Start accepts. Automaton has 11741 states and 16888 transitions. Word has length 115 [2022-11-03 02:08:09,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:08:09,760 INFO L495 AbstractCegarLoop]: Abstraction has 11741 states and 16888 transitions. [2022-11-03 02:08:09,760 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-11-03 02:08:09,760 INFO L276 IsEmpty]: Start isEmpty. Operand 11741 states and 16888 transitions. [2022-11-03 02:08:09,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2022-11-03 02:08:09,763 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:08:09,764 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:08:09,764 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-03 02:08:09,764 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_linux_net_sock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-03 02:08:09,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:08:09,765 INFO L85 PathProgramCache]: Analyzing trace with hash 476637875, now seen corresponding path program 1 times [2022-11-03 02:08:09,765 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:08:09,765 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [84737688] [2022-11-03 02:08:09,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:08:09,766 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:08:09,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:08:10,208 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-03 02:08:10,208 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:08:10,208 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [84737688] [2022-11-03 02:08:10,209 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [84737688] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:08:10,209 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:08:10,209 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 02:08:10,209 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1110728353] [2022-11-03 02:08:10,210 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:08:10,211 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 02:08:10,211 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:08:10,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 02:08:10,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 02:08:10,212 INFO L87 Difference]: Start difference. First operand 11741 states and 16888 transitions. Second operand has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-11-03 02:08:13,001 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:08:15,707 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:08:17,704 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:08:19,717 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:08:22,271 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:08:24,546 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:08:26,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:08:26,064 INFO L93 Difference]: Finished difference Result 11779 states and 16951 transitions. [2022-11-03 02:08:26,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-03 02:08:26,064 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 120 [2022-11-03 02:08:26,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:08:26,096 INFO L225 Difference]: With dead ends: 11779 [2022-11-03 02:08:26,096 INFO L226 Difference]: Without dead ends: 11777 [2022-11-03 02:08:26,102 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-03 02:08:26,103 INFO L413 NwaCegarLoop]: 4689 mSDtfsCounter, 4660 mSDsluCounter, 6413 mSDsCounter, 0 mSdLazyCounter, 1236 mSolverCounterSat, 0 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4677 SdHoareTripleChecker+Valid, 10411 SdHoareTripleChecker+Invalid, 1241 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1236 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.3s IncrementalHoareTripleChecker+Time [2022-11-03 02:08:26,103 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4677 Valid, 10411 Invalid, 1241 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1236 Invalid, 5 Unknown, 0 Unchecked, 14.3s Time] [2022-11-03 02:08:26,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11777 states. [2022-11-03 02:08:27,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11777 to 11739. [2022-11-03 02:08:27,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11739 states, 6714 states have (on average 1.3054810843014597) internal successors, (8765), 7182 states have internal predecessors, (8765), 4041 states have call successors, (4041), 970 states have call predecessors, (4041), 967 states have return successors, (4080), 3929 states have call predecessors, (4080), 4039 states have call successors, (4080) [2022-11-03 02:08:27,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11739 states to 11739 states and 16886 transitions. [2022-11-03 02:08:27,507 INFO L78 Accepts]: Start accepts. Automaton has 11739 states and 16886 transitions. Word has length 120 [2022-11-03 02:08:27,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:08:27,507 INFO L495 AbstractCegarLoop]: Abstraction has 11739 states and 16886 transitions. [2022-11-03 02:08:27,508 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-11-03 02:08:27,508 INFO L276 IsEmpty]: Start isEmpty. Operand 11739 states and 16886 transitions. [2022-11-03 02:08:27,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2022-11-03 02:08:27,510 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:08:27,510 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:08:27,510 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-03 02:08:27,510 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-03 02:08:27,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:08:27,511 INFO L85 PathProgramCache]: Analyzing trace with hash -2042178278, now seen corresponding path program 1 times [2022-11-03 02:08:27,511 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:08:27,511 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [543723940] [2022-11-03 02:08:27,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:08:27,511 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:08:27,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:08:28,098 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-03 02:08:28,098 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:08:28,098 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [543723940] [2022-11-03 02:08:28,099 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [543723940] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:08:28,099 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:08:28,099 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 02:08:28,099 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [353253669] [2022-11-03 02:08:28,100 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:08:28,100 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 02:08:28,100 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:08:28,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 02:08:28,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 02:08:28,101 INFO L87 Difference]: Start difference. First operand 11739 states and 16886 transitions. Second operand has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2022-11-03 02:08:30,985 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:08:33,783 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:08:37,410 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:08:39,873 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:08:42,178 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:08:43,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:08:43,870 INFO L93 Difference]: Finished difference Result 11777 states and 16949 transitions. [2022-11-03 02:08:43,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-03 02:08:43,871 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 125 [2022-11-03 02:08:43,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:08:43,900 INFO L225 Difference]: With dead ends: 11777 [2022-11-03 02:08:43,900 INFO L226 Difference]: Without dead ends: 11775 [2022-11-03 02:08:43,904 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-03 02:08:43,905 INFO L413 NwaCegarLoop]: 4687 mSDtfsCounter, 4657 mSDsluCounter, 6411 mSDsCounter, 0 mSdLazyCounter, 1236 mSolverCounterSat, 0 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4674 SdHoareTripleChecker+Valid, 10407 SdHoareTripleChecker+Invalid, 1241 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1236 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.1s IncrementalHoareTripleChecker+Time [2022-11-03 02:08:43,905 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4674 Valid, 10407 Invalid, 1241 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1236 Invalid, 5 Unknown, 0 Unchecked, 14.1s Time] [2022-11-03 02:08:43,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11775 states. [2022-11-03 02:08:45,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11775 to 11737. [2022-11-03 02:08:45,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11737 states, 6713 states have (on average 1.3053776255027558) internal successors, (8763), 7180 states have internal predecessors, (8763), 4041 states have call successors, (4041), 970 states have call predecessors, (4041), 967 states have return successors, (4080), 3929 states have call predecessors, (4080), 4039 states have call successors, (4080) [2022-11-03 02:08:45,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11737 states to 11737 states and 16884 transitions. [2022-11-03 02:08:45,169 INFO L78 Accepts]: Start accepts. Automaton has 11737 states and 16884 transitions. Word has length 125 [2022-11-03 02:08:45,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:08:45,170 INFO L495 AbstractCegarLoop]: Abstraction has 11737 states and 16884 transitions. [2022-11-03 02:08:45,171 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2022-11-03 02:08:45,171 INFO L276 IsEmpty]: Start isEmpty. Operand 11737 states and 16884 transitions. [2022-11-03 02:08:45,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-11-03 02:08:45,174 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:08:45,175 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:08:45,175 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-11-03 02:08:45,175 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-03 02:08:45,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:08:45,176 INFO L85 PathProgramCache]: Analyzing trace with hash 577236904, now seen corresponding path program 1 times [2022-11-03 02:08:45,176 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:08:45,176 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1054394243] [2022-11-03 02:08:45,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:08:45,177 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:08:45,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:08:45,604 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-03 02:08:45,604 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:08:45,604 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1054394243] [2022-11-03 02:08:45,604 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1054394243] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:08:45,604 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:08:45,604 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 02:08:45,605 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2124104579] [2022-11-03 02:08:45,605 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:08:45,605 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 02:08:45,606 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:08:45,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 02:08:45,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 02:08:45,607 INFO L87 Difference]: Start difference. First operand 11737 states and 16884 transitions. Second operand has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2022-11-03 02:08:48,257 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:08:50,936 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:08:52,998 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:08:56,021 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:08:57,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:08:57,539 INFO L93 Difference]: Finished difference Result 11766 states and 16932 transitions. [2022-11-03 02:08:57,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-03 02:08:57,540 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 130 [2022-11-03 02:08:57,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:08:57,570 INFO L225 Difference]: With dead ends: 11766 [2022-11-03 02:08:57,570 INFO L226 Difference]: Without dead ends: 11764 [2022-11-03 02:08:57,576 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-03 02:08:57,577 INFO L413 NwaCegarLoop]: 4685 mSDtfsCounter, 4655 mSDsluCounter, 6408 mSDsCounter, 0 mSdLazyCounter, 1239 mSolverCounterSat, 0 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4669 SdHoareTripleChecker+Valid, 10401 SdHoareTripleChecker+Invalid, 1242 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1239 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.4s IncrementalHoareTripleChecker+Time [2022-11-03 02:08:57,577 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4669 Valid, 10401 Invalid, 1242 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1239 Invalid, 3 Unknown, 0 Unchecked, 10.4s Time] [2022-11-03 02:08:57,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11764 states. [2022-11-03 02:08:58,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11764 to 11735. [2022-11-03 02:08:58,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11735 states, 6712 states have (on average 1.305274135876043) internal successors, (8761), 7178 states have internal predecessors, (8761), 4041 states have call successors, (4041), 970 states have call predecessors, (4041), 967 states have return successors, (4080), 3929 states have call predecessors, (4080), 4039 states have call successors, (4080) [2022-11-03 02:08:58,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11735 states to 11735 states and 16882 transitions. [2022-11-03 02:08:58,807 INFO L78 Accepts]: Start accepts. Automaton has 11735 states and 16882 transitions. Word has length 130 [2022-11-03 02:08:58,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:08:58,807 INFO L495 AbstractCegarLoop]: Abstraction has 11735 states and 16882 transitions. [2022-11-03 02:08:58,807 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2022-11-03 02:08:58,808 INFO L276 IsEmpty]: Start isEmpty. Operand 11735 states and 16882 transitions. [2022-11-03 02:08:58,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-11-03 02:08:58,809 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:08:58,810 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:08:58,810 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-11-03 02:08:58,810 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ldv_linux_usb_urb_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-03 02:08:58,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:08:58,811 INFO L85 PathProgramCache]: Analyzing trace with hash 1429067957, now seen corresponding path program 1 times [2022-11-03 02:08:58,811 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:08:58,811 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1475626788] [2022-11-03 02:08:58,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:08:58,811 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:08:58,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:08:59,200 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-03 02:08:59,200 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:08:59,201 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1475626788] [2022-11-03 02:08:59,201 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1475626788] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:08:59,201 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:08:59,201 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 02:08:59,202 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [115470511] [2022-11-03 02:08:59,202 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:08:59,202 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 02:08:59,203 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:08:59,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 02:08:59,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 02:08:59,204 INFO L87 Difference]: Start difference. First operand 11735 states and 16882 transitions. Second operand has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2022-11-03 02:09:02,000 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:09:04,707 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:09:07,531 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:09:09,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:09:09,891 INFO L93 Difference]: Finished difference Result 11738 states and 16893 transitions. [2022-11-03 02:09:09,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-03 02:09:09,894 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 135 [2022-11-03 02:09:09,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:09:09,940 INFO L225 Difference]: With dead ends: 11738 [2022-11-03 02:09:09,940 INFO L226 Difference]: Without dead ends: 11573 [2022-11-03 02:09:09,955 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-03 02:09:09,955 INFO L413 NwaCegarLoop]: 4237 mSDtfsCounter, 4688 mSDsluCounter, 4806 mSDsCounter, 0 mSdLazyCounter, 1072 mSolverCounterSat, 0 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4699 SdHoareTripleChecker+Valid, 8501 SdHoareTripleChecker+Invalid, 1075 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1072 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.1s IncrementalHoareTripleChecker+Time [2022-11-03 02:09:09,956 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4699 Valid, 8501 Invalid, 1075 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1072 Invalid, 3 Unknown, 0 Unchecked, 9.1s Time] [2022-11-03 02:09:09,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11573 states. [2022-11-03 02:09:11,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11573 to 11570. [2022-11-03 02:09:11,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11570 states, 6626 states have (on average 1.3084817386054934) internal successors, (8670), 7090 states have internal predecessors, (8670), 3987 states have call successors, (3987), 946 states have call predecessors, (3987), 943 states have return successors, (4025), 3876 states have call predecessors, (4025), 3985 states have call successors, (4025) [2022-11-03 02:09:11,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11570 states to 11570 states and 16682 transitions. [2022-11-03 02:09:11,858 INFO L78 Accepts]: Start accepts. Automaton has 11570 states and 16682 transitions. Word has length 135 [2022-11-03 02:09:11,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:09:11,858 INFO L495 AbstractCegarLoop]: Abstraction has 11570 states and 16682 transitions. [2022-11-03 02:09:11,859 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2022-11-03 02:09:11,859 INFO L276 IsEmpty]: Start isEmpty. Operand 11570 states and 16682 transitions. [2022-11-03 02:09:11,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2022-11-03 02:09:11,862 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:09:11,862 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:09:11,863 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-11-03 02:09:11,863 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting rcu_read_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-03 02:09:11,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:09:11,863 INFO L85 PathProgramCache]: Analyzing trace with hash 181726740, now seen corresponding path program 1 times [2022-11-03 02:09:11,864 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:09:11,864 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [585302509] [2022-11-03 02:09:11,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:09:11,864 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:09:11,975 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-03 02:09:11,975 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [695719608] [2022-11-03 02:09:11,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:09:11,976 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:09:11,976 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a189b0d-bc22-4033-b9a0-055d2d94c153/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:09:11,978 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a189b0d-bc22-4033-b9a0-055d2d94c153/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:09:11,994 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a189b0d-bc22-4033-b9a0-055d2d94c153/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-03 02:09:13,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:09:13,601 INFO L263 TraceCheckSpWp]: Trace formula consists of 3908 conjuncts, 15 conjunts are in the unsatisfiable core [2022-11-03 02:09:13,621 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:09:14,217 INFO L134 CoverageAnalysis]: Checked inductivity of 555 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 555 trivial. 0 not checked. [2022-11-03 02:09:14,217 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:09:14,217 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:09:14,217 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [585302509] [2022-11-03 02:09:14,218 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-03 02:09:14,218 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [695719608] [2022-11-03 02:09:14,218 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [695719608] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:09:14,218 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:09:14,218 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-03 02:09:14,219 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1818204203] [2022-11-03 02:09:14,219 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:09:14,219 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-03 02:09:14,220 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:09:14,220 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-03 02:09:14,220 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-03 02:09:14,220 INFO L87 Difference]: Start difference. First operand 11570 states and 16682 transitions. Second operand has 7 states, 6 states have (on average 9.333333333333334) internal successors, (56), 5 states have internal predecessors, (56), 2 states have call successors, (23), 3 states have call predecessors, (23), 2 states have return successors, (19), 2 states have call predecessors, (19), 1 states have call successors, (19) [2022-11-03 02:09:20,452 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:09:22,556 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:09:24,664 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:09:29,736 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:09:35,793 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:09:44,245 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:09:56,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:09:56,252 INFO L93 Difference]: Finished difference Result 12962 states and 19044 transitions. [2022-11-03 02:09:56,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-03 02:09:56,254 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 9.333333333333334) internal successors, (56), 5 states have internal predecessors, (56), 2 states have call successors, (23), 3 states have call predecessors, (23), 2 states have return successors, (19), 2 states have call predecessors, (19), 1 states have call successors, (19) Word has length 190 [2022-11-03 02:09:56,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:09:56,306 INFO L225 Difference]: With dead ends: 12962 [2022-11-03 02:09:56,306 INFO L226 Difference]: Without dead ends: 12960 [2022-11-03 02:09:56,316 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 194 GetRequests, 184 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2022-11-03 02:09:56,317 INFO L413 NwaCegarLoop]: 3252 mSDtfsCounter, 6237 mSDsluCounter, 4180 mSDsCounter, 0 mSdLazyCounter, 16604 mSolverCounterSat, 4641 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 35.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6860 SdHoareTripleChecker+Valid, 6658 SdHoareTripleChecker+Invalid, 21251 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4641 IncrementalHoareTripleChecker+Valid, 16604 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 39.1s IncrementalHoareTripleChecker+Time [2022-11-03 02:09:56,317 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6860 Valid, 6658 Invalid, 21251 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4641 Valid, 16604 Invalid, 6 Unknown, 0 Unchecked, 39.1s Time] [2022-11-03 02:09:56,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12960 states. [2022-11-03 02:09:58,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12960 to 12874. [2022-11-03 02:09:58,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12874 states, 7393 states have (on average 1.3189503584471798) internal successors, (9751), 7924 states have internal predecessors, (9751), 4497 states have call successors, (4497), 954 states have call predecessors, (4497), 971 states have return successors, (4640), 4384 states have call predecessors, (4640), 4495 states have call successors, (4640) [2022-11-03 02:09:58,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12874 states to 12874 states and 18888 transitions. [2022-11-03 02:09:58,152 INFO L78 Accepts]: Start accepts. Automaton has 12874 states and 18888 transitions. Word has length 190 [2022-11-03 02:09:58,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:09:58,158 INFO L495 AbstractCegarLoop]: Abstraction has 12874 states and 18888 transitions. [2022-11-03 02:09:58,159 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 9.333333333333334) internal successors, (56), 5 states have internal predecessors, (56), 2 states have call successors, (23), 3 states have call predecessors, (23), 2 states have return successors, (19), 2 states have call predecessors, (19), 1 states have call successors, (19) [2022-11-03 02:09:58,159 INFO L276 IsEmpty]: Start isEmpty. Operand 12874 states and 18888 transitions. [2022-11-03 02:09:58,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2022-11-03 02:09:58,176 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:09:58,176 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 4, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:09:58,252 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a189b0d-bc22-4033-b9a0-055d2d94c153/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-03 02:09:58,396 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a189b0d-bc22-4033-b9a0-055d2d94c153/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:09:58,397 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-03 02:09:58,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:09:58,397 INFO L85 PathProgramCache]: Analyzing trace with hash -1420419612, now seen corresponding path program 1 times [2022-11-03 02:09:58,397 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:09:58,398 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1385395254] [2022-11-03 02:09:58,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:09:58,398 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:09:58,594 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-03 02:09:58,594 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [476582308] [2022-11-03 02:09:58,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:09:58,595 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:09:58,595 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a189b0d-bc22-4033-b9a0-055d2d94c153/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:09:58,597 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a189b0d-bc22-4033-b9a0-055d2d94c153/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:09:58,606 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a189b0d-bc22-4033-b9a0-055d2d94c153/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-03 02:10:00,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:10:00,795 INFO L263 TraceCheckSpWp]: Trace formula consists of 4251 conjuncts, 21 conjunts are in the unsatisfiable core [2022-11-03 02:10:00,812 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:10:05,891 INFO L134 CoverageAnalysis]: Checked inductivity of 615 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 615 trivial. 0 not checked. [2022-11-03 02:10:05,891 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:10:05,892 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:10:05,892 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1385395254] [2022-11-03 02:10:05,892 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-03 02:10:05,892 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [476582308] [2022-11-03 02:10:05,892 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [476582308] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:10:05,892 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:10:05,892 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-03 02:10:05,893 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [238313668] [2022-11-03 02:10:05,893 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:10:05,893 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-03 02:10:05,893 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:10:05,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-03 02:10:05,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-11-03 02:10:05,894 INFO L87 Difference]: Start difference. First operand 12874 states and 18888 transitions. Second operand has 9 states, 7 states have (on average 9.0) internal successors, (63), 6 states have internal predecessors, (63), 1 states have call successors, (27), 1 states have call predecessors, (27), 3 states have return successors, (22), 3 states have call predecessors, (22), 1 states have call successors, (22) [2022-11-03 02:10:11,262 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:10:15,587 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:10:17,737 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:10:23,705 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:10:31,736 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:10:33,829 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:10:36,153 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:10:38,265 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:10:44,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:10:44,724 INFO L93 Difference]: Finished difference Result 12883 states and 18939 transitions. [2022-11-03 02:10:44,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-03 02:10:44,725 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 9.0) internal successors, (63), 6 states have internal predecessors, (63), 1 states have call successors, (27), 1 states have call predecessors, (27), 3 states have return successors, (22), 3 states have call predecessors, (22), 1 states have call successors, (22) Word has length 212 [2022-11-03 02:10:44,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:10:44,761 INFO L225 Difference]: With dead ends: 12883 [2022-11-03 02:10:44,761 INFO L226 Difference]: Without dead ends: 12881 [2022-11-03 02:10:44,772 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 213 GetRequests, 204 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2022-11-03 02:10:44,775 INFO L413 NwaCegarLoop]: 4140 mSDtfsCounter, 4627 mSDsluCounter, 19016 mSDsCounter, 0 mSdLazyCounter, 12697 mSolverCounterSat, 49 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 33.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4688 SdHoareTripleChecker+Valid, 20073 SdHoareTripleChecker+Invalid, 12754 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 12697 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 36.3s IncrementalHoareTripleChecker+Time [2022-11-03 02:10:44,775 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4688 Valid, 20073 Invalid, 12754 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [49 Valid, 12697 Invalid, 8 Unknown, 0 Unchecked, 36.3s Time] [2022-11-03 02:10:44,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12881 states. [2022-11-03 02:10:46,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12881 to 12872. [2022-11-03 02:10:46,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12872 states, 7392 states have (on average 1.3181818181818181) internal successors, (9744), 7922 states have internal predecessors, (9744), 4497 states have call successors, (4497), 954 states have call predecessors, (4497), 971 states have return successors, (4640), 4384 states have call predecessors, (4640), 4495 states have call successors, (4640) [2022-11-03 02:10:46,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12872 states to 12872 states and 18881 transitions. [2022-11-03 02:10:46,631 INFO L78 Accepts]: Start accepts. Automaton has 12872 states and 18881 transitions. Word has length 212 [2022-11-03 02:10:46,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:10:46,632 INFO L495 AbstractCegarLoop]: Abstraction has 12872 states and 18881 transitions. [2022-11-03 02:10:46,632 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 9.0) internal successors, (63), 6 states have internal predecessors, (63), 1 states have call successors, (27), 1 states have call predecessors, (27), 3 states have return successors, (22), 3 states have call predecessors, (22), 1 states have call successors, (22) [2022-11-03 02:10:46,632 INFO L276 IsEmpty]: Start isEmpty. Operand 12872 states and 18881 transitions. [2022-11-03 02:10:46,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2022-11-03 02:10:46,636 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:10:46,636 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:10:46,669 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a189b0d-bc22-4033-b9a0-055d2d94c153/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-03 02:10:46,844 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a189b0d-bc22-4033-b9a0-055d2d94c153/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2022-11-03 02:10:46,845 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ldv_check_alloc_flagsErr1ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-03 02:10:46,845 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:10:46,845 INFO L85 PathProgramCache]: Analyzing trace with hash -2041027583, now seen corresponding path program 1 times [2022-11-03 02:10:46,846 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:10:46,846 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [278895885] [2022-11-03 02:10:46,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:10:46,846 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:10:46,962 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-03 02:10:46,962 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1110400173] [2022-11-03 02:10:46,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:10:46,963 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:10:46,963 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a189b0d-bc22-4033-b9a0-055d2d94c153/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:10:46,965 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a189b0d-bc22-4033-b9a0-055d2d94c153/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:10:46,988 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a189b0d-bc22-4033-b9a0-055d2d94c153/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-03 02:10:48,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:10:48,582 INFO L263 TraceCheckSpWp]: Trace formula consists of 4142 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-03 02:10:48,589 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:10:49,066 INFO L134 CoverageAnalysis]: Checked inductivity of 555 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 555 trivial. 0 not checked. [2022-11-03 02:10:49,067 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:10:49,067 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:10:49,067 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [278895885] [2022-11-03 02:10:49,067 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-03 02:10:49,067 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1110400173] [2022-11-03 02:10:49,068 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1110400173] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:10:49,068 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:10:49,068 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-03 02:10:49,068 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [70091196] [2022-11-03 02:10:49,068 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:10:49,069 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:10:49,069 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:10:49,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:10:49,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:10:49,070 INFO L87 Difference]: Start difference. First operand 12872 states and 18881 transitions. Second operand has 3 states, 3 states have (on average 21.0) internal successors, (63), 2 states have internal predecessors, (63), 1 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2022-11-03 02:10:51,573 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:10:54,111 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:10:58,351 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:11:00,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:11:00,014 INFO L93 Difference]: Finished difference Result 25756 states and 38051 transitions. [2022-11-03 02:11:00,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:11:00,015 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 2 states have internal predecessors, (63), 1 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 198 [2022-11-03 02:11:00,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:11:00,076 INFO L225 Difference]: With dead ends: 25756 [2022-11-03 02:11:00,076 INFO L226 Difference]: Without dead ends: 12891 [2022-11-03 02:11:00,173 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 197 GetRequests, 196 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:11:00,174 INFO L413 NwaCegarLoop]: 4583 mSDtfsCounter, 4518 mSDsluCounter, 1175 mSDsCounter, 0 mSdLazyCounter, 682 mSolverCounterSat, 0 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4530 SdHoareTripleChecker+Valid, 5610 SdHoareTripleChecker+Invalid, 685 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 682 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.0s IncrementalHoareTripleChecker+Time [2022-11-03 02:11:00,174 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4530 Valid, 5610 Invalid, 685 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 682 Invalid, 3 Unknown, 0 Unchecked, 9.0s Time] [2022-11-03 02:11:00,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12891 states. [2022-11-03 02:11:02,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12891 to 12866. [2022-11-03 02:11:02,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12866 states, 7386 states have (on average 1.3176279447603574) internal successors, (9732), 7916 states have internal predecessors, (9732), 4497 states have call successors, (4497), 954 states have call predecessors, (4497), 971 states have return successors, (4640), 4384 states have call predecessors, (4640), 4495 states have call successors, (4640) [2022-11-03 02:11:02,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12866 states to 12866 states and 18869 transitions. [2022-11-03 02:11:02,317 INFO L78 Accepts]: Start accepts. Automaton has 12866 states and 18869 transitions. Word has length 198 [2022-11-03 02:11:02,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:11:02,317 INFO L495 AbstractCegarLoop]: Abstraction has 12866 states and 18869 transitions. [2022-11-03 02:11:02,317 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 2 states have internal predecessors, (63), 1 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2022-11-03 02:11:02,318 INFO L276 IsEmpty]: Start isEmpty. Operand 12866 states and 18869 transitions. [2022-11-03 02:11:02,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2022-11-03 02:11:02,322 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:11:02,322 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:11:02,373 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a189b0d-bc22-4033-b9a0-055d2d94c153/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-03 02:11:02,536 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a189b0d-bc22-4033-b9a0-055d2d94c153/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2022-11-03 02:11:02,537 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-03 02:11:02,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:11:02,537 INFO L85 PathProgramCache]: Analyzing trace with hash -1787102364, now seen corresponding path program 1 times [2022-11-03 02:11:02,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:11:02,538 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [342275630] [2022-11-03 02:11:02,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:11:02,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:11:02,656 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-03 02:11:02,656 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [279422716] [2022-11-03 02:11:02,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:11:02,657 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:11:02,657 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a189b0d-bc22-4033-b9a0-055d2d94c153/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:11:02,658 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a189b0d-bc22-4033-b9a0-055d2d94c153/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:11:02,680 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a189b0d-bc22-4033-b9a0-055d2d94c153/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-03 02:11:04,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:11:04,174 INFO L263 TraceCheckSpWp]: Trace formula consists of 4056 conjuncts, 29 conjunts are in the unsatisfiable core [2022-11-03 02:11:04,181 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:11:04,741 INFO L134 CoverageAnalysis]: Checked inductivity of 555 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 555 trivial. 0 not checked. [2022-11-03 02:11:04,742 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:11:04,742 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:11:04,742 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [342275630] [2022-11-03 02:11:04,742 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-03 02:11:04,742 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [279422716] [2022-11-03 02:11:04,743 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [279422716] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:11:04,743 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:11:04,743 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 02:11:04,743 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [280397960] [2022-11-03 02:11:04,743 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:11:04,744 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 02:11:04,744 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:11:04,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 02:11:04,744 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-03 02:11:04,744 INFO L87 Difference]: Start difference. First operand 12866 states and 18869 transitions. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 3 states have internal predecessors, (66), 1 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2022-11-03 02:11:07,569 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:11:10,474 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:11:13,906 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:11:17,604 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:11:22,580 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:11:24,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:11:24,390 INFO L93 Difference]: Finished difference Result 23837 states and 35220 transitions. [2022-11-03 02:11:24,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-03 02:11:24,391 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 3 states have internal predecessors, (66), 1 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 205 [2022-11-03 02:11:24,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:11:24,500 INFO L225 Difference]: With dead ends: 23837 [2022-11-03 02:11:24,501 INFO L226 Difference]: Without dead ends: 23835 [2022-11-03 02:11:24,513 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 206 GetRequests, 201 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-03 02:11:24,514 INFO L413 NwaCegarLoop]: 5366 mSDtfsCounter, 4319 mSDsluCounter, 16150 mSDsCounter, 0 mSdLazyCounter, 2199 mSolverCounterSat, 1 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4327 SdHoareTripleChecker+Valid, 19899 SdHoareTripleChecker+Invalid, 2205 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2199 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.7s IncrementalHoareTripleChecker+Time [2022-11-03 02:11:24,514 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4327 Valid, 19899 Invalid, 2205 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 2199 Invalid, 5 Unknown, 0 Unchecked, 15.7s Time] [2022-11-03 02:11:24,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23835 states. [2022-11-03 02:11:28,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23835 to 23680. [2022-11-03 02:11:28,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23680 states, 13690 states have (on average 1.320964207450694) internal successors, (18084), 14669 states have internal predecessors, (18084), 8157 states have call successors, (8157), 1813 states have call predecessors, (8157), 1821 states have return successors, (8810), 7871 states have call predecessors, (8810), 8155 states have call successors, (8810) [2022-11-03 02:11:28,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23680 states to 23680 states and 35051 transitions. [2022-11-03 02:11:28,736 INFO L78 Accepts]: Start accepts. Automaton has 23680 states and 35051 transitions. Word has length 205 [2022-11-03 02:11:28,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:11:28,736 INFO L495 AbstractCegarLoop]: Abstraction has 23680 states and 35051 transitions. [2022-11-03 02:11:28,737 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 3 states have internal predecessors, (66), 1 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2022-11-03 02:11:28,737 INFO L276 IsEmpty]: Start isEmpty. Operand 23680 states and 35051 transitions. [2022-11-03 02:11:28,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2022-11-03 02:11:28,741 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:11:28,742 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:11:28,776 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a189b0d-bc22-4033-b9a0-055d2d94c153/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-03 02:11:28,956 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a189b0d-bc22-4033-b9a0-055d2d94c153/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:11:28,957 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-03 02:11:28,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:11:28,957 INFO L85 PathProgramCache]: Analyzing trace with hash 115629437, now seen corresponding path program 1 times [2022-11-03 02:11:28,957 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:11:28,957 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1360797523] [2022-11-03 02:11:28,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:11:28,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:11:29,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:11:30,231 INFO L134 CoverageAnalysis]: Checked inductivity of 738 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 734 trivial. 0 not checked. [2022-11-03 02:11:30,231 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:11:30,231 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1360797523] [2022-11-03 02:11:30,232 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1360797523] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 02:11:30,232 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1570705731] [2022-11-03 02:11:30,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:11:30,232 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:11:30,233 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a189b0d-bc22-4033-b9a0-055d2d94c153/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:11:30,237 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a189b0d-bc22-4033-b9a0-055d2d94c153/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:11:30,249 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a189b0d-bc22-4033-b9a0-055d2d94c153/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-03 02:11:31,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:11:31,714 INFO L263 TraceCheckSpWp]: Trace formula consists of 4020 conjuncts, 25 conjunts are in the unsatisfiable core [2022-11-03 02:11:31,726 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:11:32,260 INFO L134 CoverageAnalysis]: Checked inductivity of 738 backedges. 61 proven. 7 refuted. 0 times theorem prover too weak. 670 trivial. 0 not checked. [2022-11-03 02:11:32,260 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:11:32,848 INFO L134 CoverageAnalysis]: Checked inductivity of 738 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 734 trivial. 0 not checked. [2022-11-03 02:11:32,849 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1570705731] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-03 02:11:32,849 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-03 02:11:32,849 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6, 6] total 9 [2022-11-03 02:11:32,849 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [40481496] [2022-11-03 02:11:32,849 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:11:32,850 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 02:11:32,850 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:11:32,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 02:11:32,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-11-03 02:11:32,851 INFO L87 Difference]: Start difference. First operand 23680 states and 35051 transitions. Second operand has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 5 states have internal predecessors, (64), 3 states have call successors, (32), 4 states have call predecessors, (32), 2 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) [2022-11-03 02:11:37,538 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:11:41,662 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:11:46,962 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:11:55,270 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:12:03,018 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:12:10,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:12:10,427 INFO L93 Difference]: Finished difference Result 48309 states and 76075 transitions. [2022-11-03 02:12:10,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-03 02:12:10,428 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 5 states have internal predecessors, (64), 3 states have call successors, (32), 4 states have call predecessors, (32), 2 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) Word has length 226 [2022-11-03 02:12:10,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:12:10,739 INFO L225 Difference]: With dead ends: 48309 [2022-11-03 02:12:10,739 INFO L226 Difference]: Without dead ends: 48307 [2022-11-03 02:12:10,774 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 464 GetRequests, 453 SyntacticMatches, 2 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2022-11-03 02:12:10,774 INFO L413 NwaCegarLoop]: 4661 mSDtfsCounter, 8717 mSDsluCounter, 11895 mSDsCounter, 0 mSdLazyCounter, 8356 mSolverCounterSat, 3206 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 25.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9525 SdHoareTripleChecker+Valid, 15148 SdHoareTripleChecker+Invalid, 11567 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3206 IncrementalHoareTripleChecker+Valid, 8356 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 28.7s IncrementalHoareTripleChecker+Time [2022-11-03 02:12:10,777 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9525 Valid, 15148 Invalid, 11567 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3206 Valid, 8356 Invalid, 5 Unknown, 0 Unchecked, 28.7s Time] [2022-11-03 02:12:10,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48307 states. [2022-11-03 02:12:18,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48307 to 48091. [2022-11-03 02:12:18,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48091 states, 28178 states have (on average 1.3335935836468167) internal successors, (37578), 30234 states have internal predecessors, (37578), 16436 states have call successors, (16436), 3372 states have call predecessors, (16436), 3465 states have return successors, (21779), 15793 states have call predecessors, (21779), 16434 states have call successors, (21779) [2022-11-03 02:12:18,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48091 states to 48091 states and 75793 transitions. [2022-11-03 02:12:18,887 INFO L78 Accepts]: Start accepts. Automaton has 48091 states and 75793 transitions. Word has length 226 [2022-11-03 02:12:18,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:12:18,887 INFO L495 AbstractCegarLoop]: Abstraction has 48091 states and 75793 transitions. [2022-11-03 02:12:18,887 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 5 states have internal predecessors, (64), 3 states have call successors, (32), 4 states have call predecessors, (32), 2 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) [2022-11-03 02:12:18,888 INFO L276 IsEmpty]: Start isEmpty. Operand 48091 states and 75793 transitions. [2022-11-03 02:12:18,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2022-11-03 02:12:18,891 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:12:18,891 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 4, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:12:18,919 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a189b0d-bc22-4033-b9a0-055d2d94c153/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-03 02:12:19,091 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a189b0d-bc22-4033-b9a0-055d2d94c153/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2022-11-03 02:12:19,092 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting cpumask_nextErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-03 02:12:19,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:12:19,092 INFO L85 PathProgramCache]: Analyzing trace with hash 130477040, now seen corresponding path program 1 times [2022-11-03 02:12:19,092 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:12:19,093 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1362654371] [2022-11-03 02:12:19,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:12:19,093 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:12:19,187 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-03 02:12:19,187 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [65927474] [2022-11-03 02:12:19,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:12:19,188 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:12:19,188 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a189b0d-bc22-4033-b9a0-055d2d94c153/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:12:19,189 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a189b0d-bc22-4033-b9a0-055d2d94c153/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:12:19,212 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a189b0d-bc22-4033-b9a0-055d2d94c153/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-03 02:12:20,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:12:20,783 INFO L263 TraceCheckSpWp]: Trace formula consists of 4233 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-03 02:12:20,787 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:12:20,802 INFO L134 CoverageAnalysis]: Checked inductivity of 615 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 615 trivial. 0 not checked. [2022-11-03 02:12:20,802 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:12:20,803 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:12:20,803 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1362654371] [2022-11-03 02:12:20,803 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-03 02:12:20,803 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [65927474] [2022-11-03 02:12:20,803 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [65927474] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:12:20,804 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:12:20,804 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:12:20,804 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [526811946] [2022-11-03 02:12:20,804 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:12:20,805 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:12:20,805 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:12:20,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:12:20,805 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:12:20,806 INFO L87 Difference]: Start difference. First operand 48091 states and 75793 transitions. Second operand has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2022-11-03 02:12:23,321 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:12:26,974 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:12:30,463 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:12:37,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:12:37,481 INFO L93 Difference]: Finished difference Result 93323 states and 147768 transitions. [2022-11-03 02:12:37,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:12:37,482 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 233 [2022-11-03 02:12:37,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:12:37,986 INFO L225 Difference]: With dead ends: 93323 [2022-11-03 02:12:37,986 INFO L226 Difference]: Without dead ends: 45239 [2022-11-03 02:12:38,374 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 232 GetRequests, 231 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:12:38,375 INFO L413 NwaCegarLoop]: 4184 mSDtfsCounter, 3 mSDsluCounter, 4699 mSDsCounter, 0 mSdLazyCounter, 1043 mSolverCounterSat, 0 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 8365 SdHoareTripleChecker+Invalid, 1046 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1043 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.1s IncrementalHoareTripleChecker+Time [2022-11-03 02:12:38,375 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 8365 Invalid, 1046 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1043 Invalid, 3 Unknown, 0 Unchecked, 8.1s Time] [2022-11-03 02:12:38,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45239 states.