./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4e7fbc69 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45ff14a4-beca-4754-ad58-bc502976c97d/bin/utaipan-Q6hlc19bkW/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45ff14a4-beca-4754-ad58-bc502976c97d/bin/utaipan-Q6hlc19bkW/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45ff14a4-beca-4754-ad58-bc502976c97d/bin/utaipan-Q6hlc19bkW/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45ff14a4-beca-4754-ad58-bc502976c97d/bin/utaipan-Q6hlc19bkW/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45ff14a4-beca-4754-ad58-bc502976c97d/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45ff14a4-beca-4754-ad58-bc502976c97d/bin/utaipan-Q6hlc19bkW --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash b20f48966671566afed85875d0d94a6951898c9c2a2bdf71b35576aeaa27c268 --- Real Ultimate output --- [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-4e7fbc6 [2022-11-23 14:34:41,534 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 14:34:41,536 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 14:34:41,576 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 14:34:41,576 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 14:34:41,580 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 14:34:41,582 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 14:34:41,585 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 14:34:41,586 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 14:34:41,591 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 14:34:41,593 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 14:34:41,594 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 14:34:41,595 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 14:34:41,597 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 14:34:41,598 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 14:34:41,599 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 14:34:41,600 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 14:34:41,601 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 14:34:41,602 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 14:34:41,604 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 14:34:41,605 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 14:34:41,607 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 14:34:41,609 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 14:34:41,610 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 14:34:41,619 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 14:34:41,622 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 14:34:41,623 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 14:34:41,624 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 14:34:41,625 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 14:34:41,626 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 14:34:41,627 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 14:34:41,628 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 14:34:41,629 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 14:34:41,630 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 14:34:41,631 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 14:34:41,632 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 14:34:41,632 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 14:34:41,633 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 14:34:41,633 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 14:34:41,635 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 14:34:41,635 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 14:34:41,636 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45ff14a4-beca-4754-ad58-bc502976c97d/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-23 14:34:41,666 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 14:34:41,666 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 14:34:41,666 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 14:34:41,667 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 14:34:41,667 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 14:34:41,668 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 14:34:41,668 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-23 14:34:41,668 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-23 14:34:41,668 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-23 14:34:41,668 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-23 14:34:41,669 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-23 14:34:41,669 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-23 14:34:41,669 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-23 14:34:41,669 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-23 14:34:41,670 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-23 14:34:41,670 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-23 14:34:41,670 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-23 14:34:41,670 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-23 14:34:41,671 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 14:34:41,671 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 14:34:41,671 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 14:34:41,672 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 14:34:41,672 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 14:34:41,672 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 14:34:41,672 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 14:34:41,672 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 14:34:41,673 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 14:34:41,673 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 14:34:41,673 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 14:34:41,673 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 14:34:41,674 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 14:34:41,674 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-23 14:34:41,674 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 14:34:41,674 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 14:34:41,674 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-23 14:34:41,675 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-23 14:34:41,675 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 14:34:41,675 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-23 14:34:41,675 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_45ff14a4-beca-4754-ad58-bc502976c97d/bin/utaipan-Q6hlc19bkW/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45ff14a4-beca-4754-ad58-bc502976c97d/bin/utaipan-Q6hlc19bkW Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b20f48966671566afed85875d0d94a6951898c9c2a2bdf71b35576aeaa27c268 [2022-11-23 14:34:41,979 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 14:34:42,003 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 14:34:42,006 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 14:34:42,007 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 14:34:42,008 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 14:34:42,009 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45ff14a4-beca-4754-ad58-bc502976c97d/bin/utaipan-Q6hlc19bkW/../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i [2022-11-23 14:34:45,071 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 14:34:45,813 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 14:34:45,814 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45ff14a4-beca-4754-ad58-bc502976c97d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i [2022-11-23 14:34:45,873 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45ff14a4-beca-4754-ad58-bc502976c97d/bin/utaipan-Q6hlc19bkW/data/c35905cf7/e0655cdbfb5d4c07a05da40127eee88f/FLAG2d72ce8cc [2022-11-23 14:34:45,892 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45ff14a4-beca-4754-ad58-bc502976c97d/bin/utaipan-Q6hlc19bkW/data/c35905cf7/e0655cdbfb5d4c07a05da40127eee88f [2022-11-23 14:34:45,897 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 14:34:45,899 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 14:34:45,904 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 14:34:45,904 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 14:34:45,908 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 14:34:45,909 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:34:45" (1/1) ... [2022-11-23 14:34:45,910 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56e9c530 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:34:45, skipping insertion in model container [2022-11-23 14:34:45,910 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:34:45" (1/1) ... [2022-11-23 14:34:45,918 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 14:34:46,192 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 14:34:51,851 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45ff14a4-beca-4754-ad58-bc502976c97d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[580060,580073] [2022-11-23 14:34:51,855 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45ff14a4-beca-4754-ad58-bc502976c97d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[580205,580218] [2022-11-23 14:34:51,855 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45ff14a4-beca-4754-ad58-bc502976c97d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[580351,580364] [2022-11-23 14:34:51,856 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45ff14a4-beca-4754-ad58-bc502976c97d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[580516,580529] [2022-11-23 14:34:51,856 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45ff14a4-beca-4754-ad58-bc502976c97d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[580674,580687] [2022-11-23 14:34:51,857 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45ff14a4-beca-4754-ad58-bc502976c97d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[580832,580845] [2022-11-23 14:34:51,857 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45ff14a4-beca-4754-ad58-bc502976c97d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[580990,581003] [2022-11-23 14:34:51,858 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45ff14a4-beca-4754-ad58-bc502976c97d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[581150,581163] [2022-11-23 14:34:51,858 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45ff14a4-beca-4754-ad58-bc502976c97d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[581309,581322] [2022-11-23 14:34:51,858 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45ff14a4-beca-4754-ad58-bc502976c97d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[581448,581461] [2022-11-23 14:34:51,859 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45ff14a4-beca-4754-ad58-bc502976c97d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[581590,581603] [2022-11-23 14:34:51,859 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45ff14a4-beca-4754-ad58-bc502976c97d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[581739,581752] [2022-11-23 14:34:51,860 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45ff14a4-beca-4754-ad58-bc502976c97d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[581878,581891] [2022-11-23 14:34:51,860 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45ff14a4-beca-4754-ad58-bc502976c97d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[582033,582046] [2022-11-23 14:34:51,861 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45ff14a4-beca-4754-ad58-bc502976c97d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[582193,582206] [2022-11-23 14:34:51,861 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45ff14a4-beca-4754-ad58-bc502976c97d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[582344,582357] [2022-11-23 14:34:51,862 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45ff14a4-beca-4754-ad58-bc502976c97d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[582495,582508] [2022-11-23 14:34:51,862 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45ff14a4-beca-4754-ad58-bc502976c97d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[582647,582660] [2022-11-23 14:34:51,862 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45ff14a4-beca-4754-ad58-bc502976c97d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[582796,582809] [2022-11-23 14:34:51,863 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45ff14a4-beca-4754-ad58-bc502976c97d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[582944,582957] [2022-11-23 14:34:51,863 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45ff14a4-beca-4754-ad58-bc502976c97d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[583101,583114] [2022-11-23 14:34:51,864 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45ff14a4-beca-4754-ad58-bc502976c97d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[583250,583263] [2022-11-23 14:34:51,864 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45ff14a4-beca-4754-ad58-bc502976c97d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[583406,583419] [2022-11-23 14:34:51,864 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45ff14a4-beca-4754-ad58-bc502976c97d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[583559,583572] [2022-11-23 14:34:51,865 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45ff14a4-beca-4754-ad58-bc502976c97d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[583705,583718] [2022-11-23 14:34:51,865 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45ff14a4-beca-4754-ad58-bc502976c97d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[583848,583861] [2022-11-23 14:34:51,866 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45ff14a4-beca-4754-ad58-bc502976c97d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[584000,584013] [2022-11-23 14:34:51,866 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45ff14a4-beca-4754-ad58-bc502976c97d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[584146,584159] [2022-11-23 14:34:51,867 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45ff14a4-beca-4754-ad58-bc502976c97d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[584291,584304] [2022-11-23 14:34:51,867 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45ff14a4-beca-4754-ad58-bc502976c97d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[584445,584458] [2022-11-23 14:34:51,868 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45ff14a4-beca-4754-ad58-bc502976c97d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[584596,584609] [2022-11-23 14:34:51,868 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45ff14a4-beca-4754-ad58-bc502976c97d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[584751,584764] [2022-11-23 14:34:51,868 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45ff14a4-beca-4754-ad58-bc502976c97d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[584903,584916] [2022-11-23 14:34:51,869 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45ff14a4-beca-4754-ad58-bc502976c97d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[585058,585071] [2022-11-23 14:34:51,869 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45ff14a4-beca-4754-ad58-bc502976c97d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[585222,585235] [2022-11-23 14:34:51,870 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45ff14a4-beca-4754-ad58-bc502976c97d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[585378,585391] [2022-11-23 14:34:51,870 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45ff14a4-beca-4754-ad58-bc502976c97d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[585542,585555] [2022-11-23 14:34:51,871 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45ff14a4-beca-4754-ad58-bc502976c97d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[585684,585697] [2022-11-23 14:34:51,871 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45ff14a4-beca-4754-ad58-bc502976c97d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[585842,585855] [2022-11-23 14:34:51,871 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45ff14a4-beca-4754-ad58-bc502976c97d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[586009,586022] [2022-11-23 14:34:51,872 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45ff14a4-beca-4754-ad58-bc502976c97d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[586168,586181] [2022-11-23 14:34:51,872 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45ff14a4-beca-4754-ad58-bc502976c97d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[586327,586340] [2022-11-23 14:34:51,873 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45ff14a4-beca-4754-ad58-bc502976c97d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[586476,586489] [2022-11-23 14:34:51,873 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45ff14a4-beca-4754-ad58-bc502976c97d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[586623,586636] [2022-11-23 14:34:51,874 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45ff14a4-beca-4754-ad58-bc502976c97d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[586762,586775] [2022-11-23 14:34:51,874 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45ff14a4-beca-4754-ad58-bc502976c97d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[586925,586938] [2022-11-23 14:34:51,874 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45ff14a4-beca-4754-ad58-bc502976c97d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[587091,587104] [2022-11-23 14:34:51,875 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45ff14a4-beca-4754-ad58-bc502976c97d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[587255,587268] [2022-11-23 14:34:51,875 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45ff14a4-beca-4754-ad58-bc502976c97d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[587420,587433] [2022-11-23 14:34:51,876 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45ff14a4-beca-4754-ad58-bc502976c97d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[587585,587598] [2022-11-23 14:34:51,876 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45ff14a4-beca-4754-ad58-bc502976c97d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[587751,587764] [2022-11-23 14:34:51,877 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45ff14a4-beca-4754-ad58-bc502976c97d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[587916,587929] [2022-11-23 14:34:51,877 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45ff14a4-beca-4754-ad58-bc502976c97d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[588083,588096] [2022-11-23 14:34:51,877 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45ff14a4-beca-4754-ad58-bc502976c97d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[588243,588256] [2022-11-23 14:34:51,878 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45ff14a4-beca-4754-ad58-bc502976c97d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[588405,588418] [2022-11-23 14:34:51,878 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45ff14a4-beca-4754-ad58-bc502976c97d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[588564,588577] [2022-11-23 14:34:51,879 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45ff14a4-beca-4754-ad58-bc502976c97d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[588710,588723] [2022-11-23 14:34:51,879 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45ff14a4-beca-4754-ad58-bc502976c97d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[588853,588866] [2022-11-23 14:34:51,880 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45ff14a4-beca-4754-ad58-bc502976c97d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[588997,589010] [2022-11-23 14:34:51,880 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45ff14a4-beca-4754-ad58-bc502976c97d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[589140,589153] [2022-11-23 14:34:51,881 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45ff14a4-beca-4754-ad58-bc502976c97d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[589284,589297] [2022-11-23 14:34:51,881 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45ff14a4-beca-4754-ad58-bc502976c97d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[589425,589438] [2022-11-23 14:34:51,881 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45ff14a4-beca-4754-ad58-bc502976c97d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[589563,589576] [2022-11-23 14:34:51,882 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45ff14a4-beca-4754-ad58-bc502976c97d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[589721,589734] [2022-11-23 14:34:51,882 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45ff14a4-beca-4754-ad58-bc502976c97d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[589880,589893] [2022-11-23 14:34:51,883 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45ff14a4-beca-4754-ad58-bc502976c97d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[590036,590049] [2022-11-23 14:34:51,883 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45ff14a4-beca-4754-ad58-bc502976c97d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[590185,590198] [2022-11-23 14:34:51,884 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45ff14a4-beca-4754-ad58-bc502976c97d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[590337,590350] [2022-11-23 14:34:51,884 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45ff14a4-beca-4754-ad58-bc502976c97d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[590488,590501] [2022-11-23 14:34:51,885 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45ff14a4-beca-4754-ad58-bc502976c97d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[590637,590650] [2022-11-23 14:34:51,885 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45ff14a4-beca-4754-ad58-bc502976c97d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[590789,590802] [2022-11-23 14:34:51,885 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45ff14a4-beca-4754-ad58-bc502976c97d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[590937,590950] [2022-11-23 14:34:51,886 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45ff14a4-beca-4754-ad58-bc502976c97d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[591090,591103] [2022-11-23 14:34:51,886 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45ff14a4-beca-4754-ad58-bc502976c97d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[591241,591254] [2022-11-23 14:34:51,887 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45ff14a4-beca-4754-ad58-bc502976c97d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[591391,591404] [2022-11-23 14:34:51,887 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45ff14a4-beca-4754-ad58-bc502976c97d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[591538,591551] [2022-11-23 14:34:51,888 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45ff14a4-beca-4754-ad58-bc502976c97d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[591689,591702] [2022-11-23 14:34:51,888 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45ff14a4-beca-4754-ad58-bc502976c97d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[591840,591853] [2022-11-23 14:34:51,889 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45ff14a4-beca-4754-ad58-bc502976c97d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[591988,592001] [2022-11-23 14:34:51,889 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45ff14a4-beca-4754-ad58-bc502976c97d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[592154,592167] [2022-11-23 14:34:51,889 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45ff14a4-beca-4754-ad58-bc502976c97d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[592323,592336] [2022-11-23 14:34:51,890 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45ff14a4-beca-4754-ad58-bc502976c97d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[592490,592503] [2022-11-23 14:34:51,890 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45ff14a4-beca-4754-ad58-bc502976c97d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[592658,592671] [2022-11-23 14:34:51,891 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45ff14a4-beca-4754-ad58-bc502976c97d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[592808,592821] [2022-11-23 14:34:51,891 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45ff14a4-beca-4754-ad58-bc502976c97d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[592955,592968] [2022-11-23 14:34:51,891 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45ff14a4-beca-4754-ad58-bc502976c97d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[593116,593129] [2022-11-23 14:34:51,892 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45ff14a4-beca-4754-ad58-bc502976c97d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[593286,593299] [2022-11-23 14:34:51,892 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45ff14a4-beca-4754-ad58-bc502976c97d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[593448,593461] [2022-11-23 14:34:51,911 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 14:34:51,935 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 14:34:52,613 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45ff14a4-beca-4754-ad58-bc502976c97d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[580060,580073] [2022-11-23 14:34:52,616 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45ff14a4-beca-4754-ad58-bc502976c97d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[580205,580218] [2022-11-23 14:34:52,617 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45ff14a4-beca-4754-ad58-bc502976c97d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[580351,580364] [2022-11-23 14:34:52,618 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45ff14a4-beca-4754-ad58-bc502976c97d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[580516,580529] [2022-11-23 14:34:52,618 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45ff14a4-beca-4754-ad58-bc502976c97d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[580674,580687] [2022-11-23 14:34:52,623 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45ff14a4-beca-4754-ad58-bc502976c97d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[580832,580845] [2022-11-23 14:34:52,624 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45ff14a4-beca-4754-ad58-bc502976c97d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[580990,581003] [2022-11-23 14:34:52,625 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45ff14a4-beca-4754-ad58-bc502976c97d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[581150,581163] [2022-11-23 14:34:52,625 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45ff14a4-beca-4754-ad58-bc502976c97d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[581309,581322] [2022-11-23 14:34:52,626 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45ff14a4-beca-4754-ad58-bc502976c97d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[581448,581461] [2022-11-23 14:34:52,626 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45ff14a4-beca-4754-ad58-bc502976c97d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[581590,581603] [2022-11-23 14:34:52,627 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45ff14a4-beca-4754-ad58-bc502976c97d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[581739,581752] [2022-11-23 14:34:52,628 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45ff14a4-beca-4754-ad58-bc502976c97d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[581878,581891] [2022-11-23 14:34:52,628 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45ff14a4-beca-4754-ad58-bc502976c97d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[582033,582046] [2022-11-23 14:34:52,629 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45ff14a4-beca-4754-ad58-bc502976c97d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[582193,582206] [2022-11-23 14:34:52,629 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45ff14a4-beca-4754-ad58-bc502976c97d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[582344,582357] [2022-11-23 14:34:52,630 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45ff14a4-beca-4754-ad58-bc502976c97d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[582495,582508] [2022-11-23 14:34:52,630 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45ff14a4-beca-4754-ad58-bc502976c97d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[582647,582660] [2022-11-23 14:34:52,631 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45ff14a4-beca-4754-ad58-bc502976c97d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[582796,582809] [2022-11-23 14:34:52,631 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45ff14a4-beca-4754-ad58-bc502976c97d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[582944,582957] [2022-11-23 14:34:52,632 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45ff14a4-beca-4754-ad58-bc502976c97d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[583101,583114] [2022-11-23 14:34:52,632 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45ff14a4-beca-4754-ad58-bc502976c97d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[583250,583263] [2022-11-23 14:34:52,633 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45ff14a4-beca-4754-ad58-bc502976c97d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[583406,583419] [2022-11-23 14:34:52,633 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45ff14a4-beca-4754-ad58-bc502976c97d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[583559,583572] [2022-11-23 14:34:52,635 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45ff14a4-beca-4754-ad58-bc502976c97d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[583705,583718] [2022-11-23 14:34:52,635 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45ff14a4-beca-4754-ad58-bc502976c97d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[583848,583861] [2022-11-23 14:34:52,636 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45ff14a4-beca-4754-ad58-bc502976c97d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[584000,584013] [2022-11-23 14:34:52,636 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45ff14a4-beca-4754-ad58-bc502976c97d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[584146,584159] [2022-11-23 14:34:52,637 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45ff14a4-beca-4754-ad58-bc502976c97d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[584291,584304] [2022-11-23 14:34:52,637 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45ff14a4-beca-4754-ad58-bc502976c97d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[584445,584458] [2022-11-23 14:34:52,637 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45ff14a4-beca-4754-ad58-bc502976c97d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[584596,584609] [2022-11-23 14:34:52,638 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45ff14a4-beca-4754-ad58-bc502976c97d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[584751,584764] [2022-11-23 14:34:52,638 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45ff14a4-beca-4754-ad58-bc502976c97d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[584903,584916] [2022-11-23 14:34:52,639 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45ff14a4-beca-4754-ad58-bc502976c97d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[585058,585071] [2022-11-23 14:34:52,640 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45ff14a4-beca-4754-ad58-bc502976c97d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[585222,585235] [2022-11-23 14:34:52,640 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45ff14a4-beca-4754-ad58-bc502976c97d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[585378,585391] [2022-11-23 14:34:52,641 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45ff14a4-beca-4754-ad58-bc502976c97d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[585542,585555] [2022-11-23 14:34:52,642 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45ff14a4-beca-4754-ad58-bc502976c97d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[585684,585697] [2022-11-23 14:34:52,643 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45ff14a4-beca-4754-ad58-bc502976c97d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[585842,585855] [2022-11-23 14:34:52,643 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45ff14a4-beca-4754-ad58-bc502976c97d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[586009,586022] [2022-11-23 14:34:52,644 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45ff14a4-beca-4754-ad58-bc502976c97d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[586168,586181] [2022-11-23 14:34:52,645 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45ff14a4-beca-4754-ad58-bc502976c97d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[586327,586340] [2022-11-23 14:34:52,646 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45ff14a4-beca-4754-ad58-bc502976c97d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[586476,586489] [2022-11-23 14:34:52,647 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45ff14a4-beca-4754-ad58-bc502976c97d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[586623,586636] [2022-11-23 14:34:52,647 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45ff14a4-beca-4754-ad58-bc502976c97d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[586762,586775] [2022-11-23 14:34:52,648 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45ff14a4-beca-4754-ad58-bc502976c97d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[586925,586938] [2022-11-23 14:34:52,648 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45ff14a4-beca-4754-ad58-bc502976c97d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[587091,587104] [2022-11-23 14:34:52,649 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45ff14a4-beca-4754-ad58-bc502976c97d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[587255,587268] [2022-11-23 14:34:52,649 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45ff14a4-beca-4754-ad58-bc502976c97d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[587420,587433] [2022-11-23 14:34:52,650 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45ff14a4-beca-4754-ad58-bc502976c97d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[587585,587598] [2022-11-23 14:34:52,650 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45ff14a4-beca-4754-ad58-bc502976c97d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[587751,587764] [2022-11-23 14:34:52,650 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45ff14a4-beca-4754-ad58-bc502976c97d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[587916,587929] [2022-11-23 14:34:52,651 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45ff14a4-beca-4754-ad58-bc502976c97d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[588083,588096] [2022-11-23 14:34:52,652 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45ff14a4-beca-4754-ad58-bc502976c97d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[588243,588256] [2022-11-23 14:34:52,653 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45ff14a4-beca-4754-ad58-bc502976c97d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[588405,588418] [2022-11-23 14:34:52,654 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45ff14a4-beca-4754-ad58-bc502976c97d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[588564,588577] [2022-11-23 14:34:52,658 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45ff14a4-beca-4754-ad58-bc502976c97d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[588710,588723] [2022-11-23 14:34:52,659 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45ff14a4-beca-4754-ad58-bc502976c97d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[588853,588866] [2022-11-23 14:34:52,660 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45ff14a4-beca-4754-ad58-bc502976c97d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[588997,589010] [2022-11-23 14:34:52,660 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45ff14a4-beca-4754-ad58-bc502976c97d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[589140,589153] [2022-11-23 14:34:52,661 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45ff14a4-beca-4754-ad58-bc502976c97d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[589284,589297] [2022-11-23 14:34:52,662 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45ff14a4-beca-4754-ad58-bc502976c97d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[589425,589438] [2022-11-23 14:34:52,663 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45ff14a4-beca-4754-ad58-bc502976c97d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[589563,589576] [2022-11-23 14:34:52,664 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45ff14a4-beca-4754-ad58-bc502976c97d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[589721,589734] [2022-11-23 14:34:52,664 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45ff14a4-beca-4754-ad58-bc502976c97d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[589880,589893] [2022-11-23 14:34:52,672 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45ff14a4-beca-4754-ad58-bc502976c97d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[590036,590049] [2022-11-23 14:34:52,674 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45ff14a4-beca-4754-ad58-bc502976c97d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[590185,590198] [2022-11-23 14:34:52,675 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45ff14a4-beca-4754-ad58-bc502976c97d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[590337,590350] [2022-11-23 14:34:52,676 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45ff14a4-beca-4754-ad58-bc502976c97d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[590488,590501] [2022-11-23 14:34:52,676 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45ff14a4-beca-4754-ad58-bc502976c97d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[590637,590650] [2022-11-23 14:34:52,677 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45ff14a4-beca-4754-ad58-bc502976c97d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[590789,590802] [2022-11-23 14:34:52,677 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45ff14a4-beca-4754-ad58-bc502976c97d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[590937,590950] [2022-11-23 14:34:52,678 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45ff14a4-beca-4754-ad58-bc502976c97d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[591090,591103] [2022-11-23 14:34:52,679 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45ff14a4-beca-4754-ad58-bc502976c97d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[591241,591254] [2022-11-23 14:34:52,679 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45ff14a4-beca-4754-ad58-bc502976c97d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[591391,591404] [2022-11-23 14:34:52,680 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45ff14a4-beca-4754-ad58-bc502976c97d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[591538,591551] [2022-11-23 14:34:52,680 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45ff14a4-beca-4754-ad58-bc502976c97d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[591689,591702] [2022-11-23 14:34:52,681 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45ff14a4-beca-4754-ad58-bc502976c97d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[591840,591853] [2022-11-23 14:34:52,683 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45ff14a4-beca-4754-ad58-bc502976c97d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[591988,592001] [2022-11-23 14:34:52,684 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45ff14a4-beca-4754-ad58-bc502976c97d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[592154,592167] [2022-11-23 14:34:52,684 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45ff14a4-beca-4754-ad58-bc502976c97d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[592323,592336] [2022-11-23 14:34:52,685 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45ff14a4-beca-4754-ad58-bc502976c97d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[592490,592503] [2022-11-23 14:34:52,685 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45ff14a4-beca-4754-ad58-bc502976c97d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[592658,592671] [2022-11-23 14:34:52,686 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45ff14a4-beca-4754-ad58-bc502976c97d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[592808,592821] [2022-11-23 14:34:52,687 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45ff14a4-beca-4754-ad58-bc502976c97d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[592955,592968] [2022-11-23 14:34:52,687 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45ff14a4-beca-4754-ad58-bc502976c97d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[593116,593129] [2022-11-23 14:34:52,688 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45ff14a4-beca-4754-ad58-bc502976c97d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[593286,593299] [2022-11-23 14:34:52,689 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45ff14a4-beca-4754-ad58-bc502976c97d/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[593448,593461] [2022-11-23 14:34:52,697 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 14:34:53,034 INFO L208 MainTranslator]: Completed translation [2022-11-23 14:34:53,034 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:34:53 WrapperNode [2022-11-23 14:34:53,034 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 14:34:53,036 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 14:34:53,036 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 14:34:53,036 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 14:34:53,043 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:34:53" (1/1) ... [2022-11-23 14:34:53,293 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:34:53" (1/1) ... [2022-11-23 14:34:53,650 INFO L138 Inliner]: procedures = 758, calls = 7328, calls flagged for inlining = 371, calls inlined = 290, statements flattened = 13856 [2022-11-23 14:34:53,651 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 14:34:53,652 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 14:34:53,652 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 14:34:53,652 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 14:34:53,663 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:34:53" (1/1) ... [2022-11-23 14:34:53,663 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:34:53" (1/1) ... [2022-11-23 14:34:53,727 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:34:53" (1/1) ... [2022-11-23 14:34:53,728 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:34:53" (1/1) ... [2022-11-23 14:34:54,033 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:34:53" (1/1) ... [2022-11-23 14:34:54,079 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:34:53" (1/1) ... [2022-11-23 14:34:54,136 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:34:53" (1/1) ... [2022-11-23 14:34:54,175 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:34:53" (1/1) ... [2022-11-23 14:34:54,254 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 14:34:54,256 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 14:34:54,256 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 14:34:54,256 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 14:34:54,257 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:34:53" (1/1) ... [2022-11-23 14:34:54,263 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 14:34:54,274 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45ff14a4-beca-4754-ad58-bc502976c97d/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 14:34:54,296 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45ff14a4-beca-4754-ad58-bc502976c97d/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 14:34:54,322 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45ff14a4-beca-4754-ad58-bc502976c97d/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 14:34:54,465 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_pcie_error_reporting [2022-11-23 14:34:54,465 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_pcie_error_reporting [2022-11-23 14:34:54,465 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_98 [2022-11-23 14:34:54,465 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_98 [2022-11-23 14:34:54,465 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_coherent_check_final_state [2022-11-23 14:34:54,465 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_coherent_check_final_state [2022-11-23 14:34:54,465 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2022-11-23 14:34:54,465 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2022-11-23 14:34:54,466 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2022-11-23 14:34:54,466 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-23 14:34:54,466 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-23 14:34:54,466 INFO L130 BoogieDeclarations]: Found specification of procedure skd_quiesce_dev [2022-11-23 14:34:54,466 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_quiesce_dev [2022-11-23 14:34:54,466 INFO L130 BoogieDeclarations]: Found specification of procedure lowmem_page_address [2022-11-23 14:34:54,466 INFO L138 BoogieDeclarations]: Found implementation of procedure lowmem_page_address [2022-11-23 14:34:54,466 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-23 14:34:54,466 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-23 14:34:54,466 INFO L130 BoogieDeclarations]: Found specification of procedure skd_cons_sg_list [2022-11-23 14:34:54,466 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_cons_sg_list [2022-11-23 14:34:54,467 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_word [2022-11-23 14:34:54,467 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_word [2022-11-23 14:34:54,467 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_mmc_sdio_func_check_final_state [2022-11-23 14:34:54,467 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_mmc_sdio_func_check_final_state [2022-11-23 14:34:54,467 INFO L130 BoogieDeclarations]: Found specification of procedure __might_sleep [2022-11-23 14:34:54,467 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_sleep [2022-11-23 14:34:54,467 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-11-23 14:34:54,467 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-11-23 14:34:54,467 INFO L130 BoogieDeclarations]: Found specification of procedure __clear_bit [2022-11-23 14:34:54,467 INFO L138 BoogieDeclarations]: Found implementation of procedure __clear_bit [2022-11-23 14:34:54,467 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-11-23 14:34:54,468 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-11-23 14:34:54,468 INFO L130 BoogieDeclarations]: Found specification of procedure queue_flag_set_unlocked [2022-11-23 14:34:54,468 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_flag_set_unlocked [2022-11-23 14:34:54,468 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_pcie_error_reporting [2022-11-23 14:34:54,468 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_pcie_error_reporting [2022-11-23 14:34:54,468 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_arch_io_check_final_state [2022-11-23 14:34:54,468 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_arch_io_check_final_state [2022-11-23 14:34:54,468 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_module_check_final_state [2022-11-23 14:34:54,468 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_module_check_final_state [2022-11-23 14:34:54,468 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2022-11-23 14:34:54,468 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2022-11-23 14:34:54,468 INFO L130 BoogieDeclarations]: Found specification of procedure skd_pci_remove [2022-11-23 14:34:54,468 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_pci_remove [2022-11-23 14:34:54,469 INFO L130 BoogieDeclarations]: Found specification of procedure skd_isr_fwstate [2022-11-23 14:34:54,469 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_isr_fwstate [2022-11-23 14:34:54,469 INFO L130 BoogieDeclarations]: Found specification of procedure skd_drive_disappeared [2022-11-23 14:34:54,469 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_drive_disappeared [2022-11-23 14:34:54,469 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_pages [2022-11-23 14:34:54,469 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_pages [2022-11-23 14:34:54,469 INFO L130 BoogieDeclarations]: Found specification of procedure skd_release_skreq [2022-11-23 14:34:54,469 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_release_skreq [2022-11-23 14:34:54,469 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2022-11-23 14:34:54,469 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2022-11-23 14:34:54,469 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-11-23 14:34:54,469 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-11-23 14:34:54,470 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-23 14:34:54,470 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-23 14:34:54,470 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_queue_check_final_state [2022-11-23 14:34:54,470 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_queue_check_final_state [2022-11-23 14:34:54,470 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-23 14:34:54,470 INFO L130 BoogieDeclarations]: Found specification of procedure __chk_range_not_ok [2022-11-23 14:34:54,470 INFO L138 BoogieDeclarations]: Found implementation of procedure __chk_range_not_ok [2022-11-23 14:34:54,470 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_request_check_final_state [2022-11-23 14:34:54,470 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_request_check_final_state [2022-11-23 14:34:54,470 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_110 [2022-11-23 14:34:54,470 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_110 [2022-11-23 14:34:54,471 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_consistent_dma_mask [2022-11-23 14:34:54,471 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_consistent_dma_mask [2022-11-23 14:34:54,471 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-23 14:34:54,471 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2022-11-23 14:34:54,471 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2022-11-23 14:34:54,471 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-11-23 14:34:54,471 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-11-23 14:34:54,471 INFO L130 BoogieDeclarations]: Found specification of procedure sg_page [2022-11-23 14:34:54,471 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_page [2022-11-23 14:34:54,471 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-23 14:34:54,471 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_in_interrupt_context [2022-11-23 14:34:54,472 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_in_interrupt_context [2022-11-23 14:34:54,472 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-11-23 14:34:54,472 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-11-23 14:34:54,472 INFO L130 BoogieDeclarations]: Found specification of procedure pci_zalloc_consistent [2022-11-23 14:34:54,472 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_zalloc_consistent [2022-11-23 14:34:54,472 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_bh_check_final_state [2022-11-23 14:34:54,472 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_bh_check_final_state [2022-11-23 14:34:54,472 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-23 14:34:54,472 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_genhd_check_final_state [2022-11-23 14:34:54,472 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_genhd_check_final_state [2022-11-23 14:34:54,472 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_after_alloc [2022-11-23 14:34:54,473 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_after_alloc [2022-11-23 14:34:54,473 INFO L130 BoogieDeclarations]: Found specification of procedure __copy_to_user [2022-11-23 14:34:54,473 INFO L138 BoogieDeclarations]: Found implementation of procedure __copy_to_user [2022-11-23 14:34:54,473 INFO L130 BoogieDeclarations]: Found specification of procedure skd_log_check_status [2022-11-23 14:34:54,473 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_log_check_status [2022-11-23 14:34:54,473 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-23 14:34:54,473 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-23 14:34:54,473 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_register_reset_error_counter [2022-11-23 14:34:54,473 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_register_reset_error_counter [2022-11-23 14:34:54,473 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2022-11-23 14:34:54,473 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2022-11-23 14:34:54,473 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-11-23 14:34:54,474 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-11-23 14:34:54,474 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2022-11-23 14:34:54,474 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2022-11-23 14:34:54,474 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_dma_mask [2022-11-23 14:34:54,474 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_dma_mask [2022-11-23 14:34:54,474 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_to_wait_event [2022-11-23 14:34:54,474 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_to_wait_event [2022-11-23 14:34:54,476 INFO L130 BoogieDeclarations]: Found specification of procedure blk_start_queue [2022-11-23 14:34:54,476 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_start_queue [2022-11-23 14:34:54,477 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2022-11-23 14:34:54,477 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2022-11-23 14:34:54,477 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_lib_idr_check_final_state [2022-11-23 14:34:54,477 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_lib_idr_check_final_state [2022-11-23 14:34:54,477 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-11-23 14:34:54,477 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-11-23 14:34:54,477 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_drvdata [2022-11-23 14:34:54,477 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_drvdata [2022-11-23 14:34:54,478 INFO L130 BoogieDeclarations]: Found specification of procedure pci_request_regions [2022-11-23 14:34:54,478 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_request_regions [2022-11-23 14:34:54,478 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_srcu_check_final_state [2022-11-23 14:34:54,478 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_srcu_check_final_state [2022-11-23 14:34:54,478 INFO L130 BoogieDeclarations]: Found specification of procedure skd_isr [2022-11-23 14:34:54,478 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_isr [2022-11-23 14:34:54,479 INFO L130 BoogieDeclarations]: Found specification of procedure skd_release_irq [2022-11-23 14:34:54,479 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_release_irq [2022-11-23 14:34:54,479 INFO L130 BoogieDeclarations]: Found specification of procedure skd_free_sg_list [2022-11-23 14:34:54,479 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_free_sg_list [2022-11-23 14:34:54,479 INFO L130 BoogieDeclarations]: Found specification of procedure skd_destruct [2022-11-23 14:34:54,479 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_destruct [2022-11-23 14:34:54,479 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-23 14:34:54,479 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer [2022-11-23 14:34:54,480 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer [2022-11-23 14:34:54,480 INFO L130 BoogieDeclarations]: Found specification of procedure blk_start_request [2022-11-23 14:34:54,480 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_start_request [2022-11-23 14:34:54,480 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 14:34:54,480 INFO L130 BoogieDeclarations]: Found specification of procedure skd_send_special_fitmsg [2022-11-23 14:34:54,480 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_send_special_fitmsg [2022-11-23 14:34:54,480 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-23 14:34:54,480 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-23 14:34:54,481 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-23 14:34:54,481 INFO L130 BoogieDeclarations]: Found specification of procedure __blk_end_request_all [2022-11-23 14:34:54,481 INFO L138 BoogieDeclarations]: Found implementation of procedure __blk_end_request_all [2022-11-23 14:34:54,481 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-11-23 14:34:54,481 INFO L130 BoogieDeclarations]: Found specification of procedure skd_pci_resume [2022-11-23 14:34:54,481 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_pci_resume [2022-11-23 14:34:54,481 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_spinlock_spin_unlock_lock_of_skd_device [2022-11-23 14:34:54,482 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_spinlock_spin_unlock_lock_of_skd_device [2022-11-23 14:34:54,482 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2022-11-23 14:34:54,482 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2022-11-23 14:34:54,482 INFO L130 BoogieDeclarations]: Found specification of procedure skd_release_msix [2022-11-23 14:34:54,482 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_release_msix [2022-11-23 14:34:54,482 INFO L130 BoogieDeclarations]: Found specification of procedure skd_end_request [2022-11-23 14:34:54,482 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_end_request [2022-11-23 14:34:54,483 INFO L130 BoogieDeclarations]: Found specification of procedure skd_recover_requests [2022-11-23 14:34:54,483 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_recover_requests [2022-11-23 14:34:54,483 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-11-23 14:34:54,483 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-11-23 14:34:54,483 INFO L130 BoogieDeclarations]: Found specification of procedure __copy_from_user [2022-11-23 14:34:54,483 INFO L138 BoogieDeclarations]: Found implementation of procedure __copy_from_user [2022-11-23 14:34:54,483 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_register_reset_error_counter [2022-11-23 14:34:54,483 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_register_reset_error_counter [2022-11-23 14:34:54,484 INFO L130 BoogieDeclarations]: Found specification of procedure blk_peek_request [2022-11-23 14:34:54,484 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_peek_request [2022-11-23 14:34:54,484 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2022-11-23 14:34:54,484 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2022-11-23 14:34:54,484 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2022-11-23 14:34:54,484 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2022-11-23 14:34:54,484 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_timeout [2022-11-23 14:34:54,485 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_timeout [2022-11-23 14:34:54,485 INFO L130 BoogieDeclarations]: Found specification of procedure skd_isr_msg_from_dev [2022-11-23 14:34:54,485 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_isr_msg_from_dev [2022-11-23 14:34:54,485 INFO L130 BoogieDeclarations]: Found specification of procedure finish_wait [2022-11-23 14:34:54,485 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_wait [2022-11-23 14:34:54,485 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 14:34:54,485 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 14:34:54,486 INFO L130 BoogieDeclarations]: Found specification of procedure writeq [2022-11-23 14:34:54,486 INFO L138 BoogieDeclarations]: Found implementation of procedure writeq [2022-11-23 14:34:54,486 INFO L130 BoogieDeclarations]: Found specification of procedure devm_request_irq [2022-11-23 14:34:54,486 INFO L138 BoogieDeclarations]: Found implementation of procedure devm_request_irq [2022-11-23 14:34:54,486 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2022-11-23 14:34:54,486 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2022-11-23 14:34:54,486 INFO L130 BoogieDeclarations]: Found specification of procedure blk_stop_queue [2022-11-23 14:34:54,487 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_stop_queue [2022-11-23 14:34:54,487 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-23 14:34:54,487 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-23 14:34:54,487 INFO L130 BoogieDeclarations]: Found specification of procedure skd_skdev_state_to_str [2022-11-23 14:34:54,487 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_skdev_state_to_str [2022-11-23 14:34:54,487 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-23 14:34:54,487 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-23 14:34:54,488 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-11-23 14:34:54,488 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-11-23 14:34:54,488 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2022-11-23 14:34:54,488 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2022-11-23 14:34:54,488 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_spinlock_spin_lock_lock_of_skd_device [2022-11-23 14:34:54,488 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_spinlock_spin_lock_lock_of_skd_device [2022-11-23 14:34:54,488 INFO L130 BoogieDeclarations]: Found specification of procedure skd_start_device [2022-11-23 14:34:54,489 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_start_device [2022-11-23 14:34:54,489 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2022-11-23 14:34:54,489 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2022-11-23 14:34:54,489 INFO L130 BoogieDeclarations]: Found specification of procedure skd_postop_sg_list [2022-11-23 14:34:54,489 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_postop_sg_list [2022-11-23 14:34:54,489 INFO L130 BoogieDeclarations]: Found specification of procedure skd_request_fn [2022-11-23 14:34:54,489 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_request_fn [2022-11-23 14:34:54,489 INFO L130 BoogieDeclarations]: Found specification of procedure put_unaligned_be16 [2022-11-23 14:34:54,490 INFO L138 BoogieDeclarations]: Found implementation of procedure put_unaligned_be16 [2022-11-23 14:34:54,490 INFO L130 BoogieDeclarations]: Found specification of procedure skd_send_fitmsg [2022-11-23 14:34:54,490 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_send_fitmsg [2022-11-23 14:34:54,490 INFO L130 BoogieDeclarations]: Found specification of procedure set_capacity [2022-11-23 14:34:54,490 INFO L138 BoogieDeclarations]: Found implementation of procedure set_capacity [2022-11-23 14:34:54,490 INFO L130 BoogieDeclarations]: Found specification of procedure blk_rq_sectors [2022-11-23 14:34:54,490 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_rq_sectors [2022-11-23 14:34:54,491 INFO L130 BoogieDeclarations]: Found specification of procedure skd_log_skreq [2022-11-23 14:34:54,491 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_log_skreq [2022-11-23 14:34:54,491 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-23 14:34:54,491 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-23 14:34:54,491 INFO L130 BoogieDeclarations]: Found specification of procedure skd_disable_interrupts [2022-11-23 14:34:54,491 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_disable_interrupts [2022-11-23 14:34:54,491 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_arch_io_io_mem_unmap [2022-11-23 14:34:54,491 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_arch_io_io_mem_unmap [2022-11-23 14:34:54,492 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2022-11-23 14:34:54,492 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2022-11-23 14:34:54,492 INFO L130 BoogieDeclarations]: Found specification of procedure skd_drive_fault [2022-11-23 14:34:54,492 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_drive_fault [2022-11-23 14:34:54,492 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_sock_check_final_state [2022-11-23 14:34:54,492 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_sock_check_final_state [2022-11-23 14:34:54,492 INFO L130 BoogieDeclarations]: Found specification of procedure skd_isr_completion_posted [2022-11-23 14:34:54,493 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_isr_completion_posted [2022-11-23 14:34:54,493 INFO L130 BoogieDeclarations]: Found specification of procedure blk_rq_pos [2022-11-23 14:34:54,493 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_rq_pos [2022-11-23 14:34:54,493 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_gadget_check_final_state [2022-11-23 14:34:54,493 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_gadget_check_final_state [2022-11-23 14:34:54,493 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-23 14:34:54,493 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-11-23 14:34:54,494 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-11-23 14:34:54,494 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_fs_sysfs_check_final_state [2022-11-23 14:34:54,494 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_fs_sysfs_check_final_state [2022-11-23 14:34:54,494 INFO L130 BoogieDeclarations]: Found specification of procedure skd_sg_io_copy_buffer [2022-11-23 14:34:54,494 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_sg_io_copy_buffer [2022-11-23 14:34:54,494 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_master [2022-11-23 14:34:54,494 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_master [2022-11-23 14:34:54,494 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-23 14:34:54,495 INFO L130 BoogieDeclarations]: Found specification of procedure skd_reg_write64 [2022-11-23 14:34:54,495 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_reg_write64 [2022-11-23 14:34:54,495 INFO L130 BoogieDeclarations]: Found specification of procedure ioremap [2022-11-23 14:34:54,495 INFO L138 BoogieDeclarations]: Found implementation of procedure ioremap [2022-11-23 14:34:54,495 INFO L130 BoogieDeclarations]: Found specification of procedure __free_pages [2022-11-23 14:34:54,495 INFO L138 BoogieDeclarations]: Found implementation of procedure __free_pages [2022-11-23 14:34:54,495 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-23 14:34:54,496 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2022-11-23 14:34:54,496 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2022-11-23 14:34:54,496 INFO L130 BoogieDeclarations]: Found specification of procedure strcat [2022-11-23 14:34:54,496 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-11-23 14:34:54,496 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-11-23 14:34:54,496 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2022-11-23 14:34:54,496 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2022-11-23 14:34:54,497 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_rtnetlink_check_final_state [2022-11-23 14:34:54,497 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_rtnetlink_check_final_state [2022-11-23 14:34:54,497 INFO L130 BoogieDeclarations]: Found specification of procedure skd_soft_reset [2022-11-23 14:34:54,497 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_soft_reset [2022-11-23 14:34:54,497 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-11-23 14:34:54,497 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-11-23 14:34:54,497 INFO L130 BoogieDeclarations]: Found specification of procedure skd_start_timer [2022-11-23 14:34:54,497 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_start_timer [2022-11-23 14:34:54,498 INFO L130 BoogieDeclarations]: Found specification of procedure skd_reg_write32 [2022-11-23 14:34:54,498 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_reg_write32 [2022-11-23 14:34:54,498 INFO L130 BoogieDeclarations]: Found specification of procedure pci_find_capability [2022-11-23 14:34:54,498 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_find_capability [2022-11-23 14:34:54,498 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-11-23 14:34:54,498 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-11-23 14:34:54,498 INFO L130 BoogieDeclarations]: Found specification of procedure blk_requeue_request [2022-11-23 14:34:54,499 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_requeue_request [2022-11-23 14:34:54,499 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_check_final_state [2022-11-23 14:34:54,499 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_check_final_state [2022-11-23 14:34:54,499 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_urb_check_final_state [2022-11-23 14:34:54,499 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_urb_check_final_state [2022-11-23 14:34:54,499 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_linux_kernel_locking_spinlock_spin_lock [2022-11-23 14:34:54,499 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_linux_kernel_locking_spinlock_spin_lock [2022-11-23 14:34:54,500 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_devm_free_irq [2022-11-23 14:34:54,500 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_devm_free_irq [2022-11-23 14:34:54,500 INFO L130 BoogieDeclarations]: Found specification of procedure skd_reg_read32 [2022-11-23 14:34:54,500 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_reg_read32 [2022-11-23 14:34:54,500 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_rwlock_check_final_state [2022-11-23 14:34:54,500 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_rwlock_check_final_state [2022-11-23 14:34:54,500 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-23 14:34:54,501 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-23 14:34:54,501 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-23 14:34:54,501 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_fs_char_dev_check_final_state [2022-11-23 14:34:54,501 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_fs_char_dev_check_final_state [2022-11-23 14:34:54,501 INFO L130 BoogieDeclarations]: Found specification of procedure skd_send_internal_skspcl [2022-11-23 14:34:54,501 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_send_internal_skspcl [2022-11-23 14:34:54,501 INFO L130 BoogieDeclarations]: Found specification of procedure skd_release_special [2022-11-23 14:34:54,501 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_release_special [2022-11-23 14:34:54,502 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-23 14:34:54,502 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-23 14:34:54,502 INFO L130 BoogieDeclarations]: Found specification of procedure copy_user_generic [2022-11-23 14:34:54,502 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_user_generic [2022-11-23 14:34:54,502 INFO L130 BoogieDeclarations]: Found specification of procedure skd_drive_state_to_str [2022-11-23 14:34:54,502 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_drive_state_to_str [2022-11-23 14:34:54,502 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_drivers_base_class_check_final_state [2022-11-23 14:34:54,503 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_drivers_base_class_check_final_state [2022-11-23 14:34:54,503 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2022-11-23 14:34:54,503 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2022-11-23 14:34:54,503 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device [2022-11-23 14:34:54,503 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device [2022-11-23 14:34:54,503 INFO L130 BoogieDeclarations]: Found specification of procedure current_thread_info [2022-11-23 14:34:54,503 INFO L138 BoogieDeclarations]: Found implementation of procedure current_thread_info [2022-11-23 14:34:54,504 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab64 [2022-11-23 14:34:54,504 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab64 [2022-11-23 14:34:54,504 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2022-11-23 14:34:54,504 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2022-11-23 14:34:54,504 INFO L130 BoogieDeclarations]: Found specification of procedure skd_name [2022-11-23 14:34:54,504 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_name [2022-11-23 14:34:54,504 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-11-23 14:34:54,504 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-11-23 14:34:54,505 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2022-11-23 14:34:54,505 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2022-11-23 14:34:54,505 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_sched_check_final_state [2022-11-23 14:34:54,505 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_sched_check_final_state [2022-11-23 14:34:54,505 INFO L130 BoogieDeclarations]: Found specification of procedure init_timer_key [2022-11-23 14:34:54,505 INFO L138 BoogieDeclarations]: Found implementation of procedure init_timer_key [2022-11-23 14:34:54,505 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2022-11-23 14:34:54,506 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2022-11-23 14:34:54,506 INFO L130 BoogieDeclarations]: Found specification of procedure devm_free_irq [2022-11-23 14:34:54,506 INFO L138 BoogieDeclarations]: Found implementation of procedure devm_free_irq [2022-11-23 14:34:54,506 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2022-11-23 14:34:54,506 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2022-11-23 14:34:54,506 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_msi [2022-11-23 14:34:54,506 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_msi [2022-11-23 14:34:54,507 INFO L130 BoogieDeclarations]: Found specification of procedure sg_virt [2022-11-23 14:34:54,507 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_virt [2022-11-23 14:34:54,507 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2022-11-23 14:34:54,507 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2022-11-23 14:34:54,507 INFO L130 BoogieDeclarations]: Found specification of procedure skd_pci_shutdown [2022-11-23 14:34:54,507 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_pci_shutdown [2022-11-23 14:34:54,507 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-23 14:34:54,507 INFO L130 BoogieDeclarations]: Found specification of procedure skd_stop_device [2022-11-23 14:34:54,508 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_stop_device [2022-11-23 14:34:54,508 INFO L130 BoogieDeclarations]: Found specification of procedure skd_acquire_irq [2022-11-23 14:34:54,508 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_acquire_irq [2022-11-23 14:34:54,508 INFO L130 BoogieDeclarations]: Found specification of procedure skd_log_skdev [2022-11-23 14:34:54,508 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_log_skdev [2022-11-23 14:34:55,835 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 14:34:55,847 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 14:34:56,204 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-23 14:34:56,616 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L6358: assume 0 != __copy_to_user_nocheck_~tmp___1~7#1;__copy_to_user_nocheck_#res#1 := __copy_to_user_nocheck_~ret~3#1; [2022-11-23 14:34:56,616 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L6358: assume !(0 != __copy_to_user_nocheck_~tmp___1~7#1);__copy_to_user_nocheck_#res#1 := __copy_to_user_nocheck_~ret~3#1; [2022-11-23 14:34:56,616 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L6321: SUMMARY for call __copy_to_user_nocheck_#t~ret275#1 := copy_user_generic(__copy_to_user_nocheck_~dst#1.base, __copy_to_user_nocheck_~dst#1.offset, __copy_to_user_nocheck_~src#1.base, __copy_to_user_nocheck_~src#1.offset, __copy_to_user_nocheck_~size#1); srcloc: null [2022-11-23 14:34:56,616 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L6317: assume 16 == __copy_to_user_nocheck_~size#1 % 4294967296; [2022-11-23 14:34:56,617 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L6317: assume !(16 == __copy_to_user_nocheck_~size#1 % 4294967296); [2022-11-23 14:34:56,617 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L6342: assume -9223372036854775808 <= __copy_to_user_nocheck_#t~ret273#1 && __copy_to_user_nocheck_#t~ret273#1 <= 9223372036854775807;__copy_to_user_nocheck_~tmp___0~11#1 := __copy_to_user_nocheck_#t~ret273#1;havoc __copy_to_user_nocheck_#t~ret273#1; [2022-11-23 14:34:56,617 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L6313: assume 10 == __copy_to_user_nocheck_~size#1 % 4294967296; [2022-11-23 14:34:56,617 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L6313: assume !(10 == __copy_to_user_nocheck_~size#1 % 4294967296); [2022-11-23 14:34:56,617 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L6309: assume 8 == __copy_to_user_nocheck_~size#1 % 4294967296; [2022-11-23 14:34:56,618 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L6309: assume !(8 == __copy_to_user_nocheck_~size#1 % 4294967296); [2022-11-23 14:34:56,618 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L6305: assume 4 == __copy_to_user_nocheck_~size#1 % 4294967296; [2022-11-23 14:34:56,618 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L6305: assume !(4 == __copy_to_user_nocheck_~size#1 % 4294967296); [2022-11-23 14:34:56,618 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L6301: assume 2 == __copy_to_user_nocheck_~size#1 % 4294967296; [2022-11-23 14:34:56,618 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L6301: assume !(2 == __copy_to_user_nocheck_~size#1 % 4294967296); [2022-11-23 14:34:56,618 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L6318: SUMMARY for call __copy_to_user_nocheck_#t~ret274#1 := ldv__builtin_expect((if 0 != __copy_to_user_nocheck_~ret~3#1 then 1 else 0), 0); srcloc: null [2022-11-23 14:34:56,619 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L6314: SUMMARY for call __copy_to_user_nocheck_#t~ret273#1 := ldv__builtin_expect((if 0 != __copy_to_user_nocheck_~ret~3#1 then 1 else 0), 0); srcloc: null [2022-11-23 14:34:56,619 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##1: assume 1 == __copy_to_user_nocheck_~size#1 % 4294967296; [2022-11-23 14:34:56,619 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L6310: __copy_to_user_nocheck_#res#1 := __copy_to_user_nocheck_~ret~3#1; [2022-11-23 14:34:56,619 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L6306: __copy_to_user_nocheck_#res#1 := __copy_to_user_nocheck_~ret~3#1; [2022-11-23 14:34:56,619 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##2: assume !(1 == __copy_to_user_nocheck_~size#1 % 4294967296); [2022-11-23 14:34:56,620 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L6302: __copy_to_user_nocheck_#res#1 := __copy_to_user_nocheck_~ret~3#1; [2022-11-23 14:34:56,620 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L6368: __copy_to_user_nocheck_~tmp___2~2#1 := __copy_to_user_nocheck_#t~ret275#1;havoc __copy_to_user_nocheck_#t~ret275#1;__copy_to_user_nocheck_#res#1 := (if __copy_to_user_nocheck_~tmp___2~2#1 % 18446744073709551616 % 4294967296 <= 2147483647 then __copy_to_user_nocheck_~tmp___2~2#1 % 18446744073709551616 % 4294967296 else __copy_to_user_nocheck_~tmp___2~2#1 % 18446744073709551616 % 4294967296 - 4294967296); [2022-11-23 14:34:56,620 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L6298: __copy_to_user_nocheck_#res#1 := __copy_to_user_nocheck_~ret~3#1; [2022-11-23 14:34:56,620 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L6356: assume -9223372036854775808 <= __copy_to_user_nocheck_#t~ret274#1 && __copy_to_user_nocheck_#t~ret274#1 <= 9223372036854775807;__copy_to_user_nocheck_~tmp___1~7#1 := __copy_to_user_nocheck_#t~ret274#1;havoc __copy_to_user_nocheck_#t~ret274#1; [2022-11-23 14:34:56,620 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L6344: assume 0 != __copy_to_user_nocheck_~tmp___0~11#1;__copy_to_user_nocheck_#res#1 := __copy_to_user_nocheck_~ret~3#1; [2022-11-23 14:34:56,621 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L6344: assume !(0 != __copy_to_user_nocheck_~tmp___0~11#1);__copy_to_user_nocheck_#res#1 := __copy_to_user_nocheck_~ret~3#1; [2022-11-23 14:35:11,209 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L6208: assume 16 == __copy_from_user_nocheck_~size#1 % 4294967296; [2022-11-23 14:35:11,209 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L6208: assume !(16 == __copy_from_user_nocheck_~size#1 % 4294967296); [2022-11-23 14:35:11,210 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L6204: assume 10 == __copy_from_user_nocheck_~size#1 % 4294967296; [2022-11-23 14:35:11,210 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L6204: assume !(10 == __copy_from_user_nocheck_~size#1 % 4294967296); [2022-11-23 14:35:11,210 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L6200: assume 8 == __copy_from_user_nocheck_~size#1 % 4294967296; [2022-11-23 14:35:11,210 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L6200: assume !(8 == __copy_from_user_nocheck_~size#1 % 4294967296); [2022-11-23 14:35:11,210 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L6196: assume 4 == __copy_from_user_nocheck_~size#1 % 4294967296; [2022-11-23 14:35:11,210 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L6196: assume !(4 == __copy_from_user_nocheck_~size#1 % 4294967296); [2022-11-23 14:35:11,210 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L6192: assume 2 == __copy_from_user_nocheck_~size#1 % 4294967296; [2022-11-23 14:35:11,210 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L6192: assume !(2 == __copy_from_user_nocheck_~size#1 % 4294967296); [2022-11-23 14:35:11,210 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L6238: assume -9223372036854775808 <= __copy_from_user_nocheck_#t~ret268#1 && __copy_from_user_nocheck_#t~ret268#1 <= 9223372036854775807;__copy_from_user_nocheck_~tmp___0~10#1 := __copy_from_user_nocheck_#t~ret268#1;havoc __copy_from_user_nocheck_#t~ret268#1; [2022-11-23 14:35:11,210 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L6209: SUMMARY for call __copy_from_user_nocheck_#t~ret269#1 := ldv__builtin_expect((if 0 != __copy_from_user_nocheck_~ret~2#1 then 1 else 0), 0); srcloc: null [2022-11-23 14:35:11,211 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L6205: SUMMARY for call __copy_from_user_nocheck_#t~ret268#1 := ldv__builtin_expect((if 0 != __copy_from_user_nocheck_~ret~2#1 then 1 else 0), 0); srcloc: null [2022-11-23 14:35:11,211 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L6201: __copy_from_user_nocheck_#res#1 := __copy_from_user_nocheck_~ret~2#1; [2022-11-23 14:35:11,211 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L6197: __copy_from_user_nocheck_#res#1 := __copy_from_user_nocheck_~ret~2#1; [2022-11-23 14:35:11,211 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L6255: assume 0 != __copy_from_user_nocheck_~tmp___1~6#1;__copy_from_user_nocheck_#res#1 := __copy_from_user_nocheck_~ret~2#1; [2022-11-23 14:35:11,211 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L6255: assume !(0 != __copy_from_user_nocheck_~tmp___1~6#1);__copy_from_user_nocheck_#res#1 := __copy_from_user_nocheck_~ret~2#1; [2022-11-23 14:35:11,211 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L6193: __copy_from_user_nocheck_#res#1 := __copy_from_user_nocheck_~ret~2#1; [2022-11-23 14:35:11,211 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L6189: __copy_from_user_nocheck_#res#1 := __copy_from_user_nocheck_~ret~2#1; [2022-11-23 14:35:11,211 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##1: assume 1 == __copy_from_user_nocheck_~size#1 % 4294967296; [2022-11-23 14:35:11,211 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##2: assume !(1 == __copy_from_user_nocheck_~size#1 % 4294967296); [2022-11-23 14:35:11,211 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L6240: assume 0 != __copy_from_user_nocheck_~tmp___0~10#1;__copy_from_user_nocheck_#res#1 := __copy_from_user_nocheck_~ret~2#1; [2022-11-23 14:35:11,211 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L6240: assume !(0 != __copy_from_user_nocheck_~tmp___0~10#1);__copy_from_user_nocheck_#res#1 := __copy_from_user_nocheck_~ret~2#1; [2022-11-23 14:35:11,212 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L6265: __copy_from_user_nocheck_~tmp___2~1#1 := __copy_from_user_nocheck_#t~ret270#1;havoc __copy_from_user_nocheck_#t~ret270#1;__copy_from_user_nocheck_#res#1 := (if __copy_from_user_nocheck_~tmp___2~1#1 % 18446744073709551616 % 4294967296 <= 2147483647 then __copy_from_user_nocheck_~tmp___2~1#1 % 18446744073709551616 % 4294967296 else __copy_from_user_nocheck_~tmp___2~1#1 % 18446744073709551616 % 4294967296 - 4294967296); [2022-11-23 14:35:11,212 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L6253: assume -9223372036854775808 <= __copy_from_user_nocheck_#t~ret269#1 && __copy_from_user_nocheck_#t~ret269#1 <= 9223372036854775807;__copy_from_user_nocheck_~tmp___1~6#1 := __copy_from_user_nocheck_#t~ret269#1;havoc __copy_from_user_nocheck_#t~ret269#1; [2022-11-23 14:35:11,212 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L6212: SUMMARY for call __copy_from_user_nocheck_#t~ret270#1 := copy_user_generic(__copy_from_user_nocheck_~dst#1.base, __copy_from_user_nocheck_~dst#1.offset, __copy_from_user_nocheck_~src#1.base, __copy_from_user_nocheck_~src#1.offset, __copy_from_user_nocheck_~size#1); srcloc: null [2022-11-23 14:35:22,383 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 14:35:25,959 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 14:35:25,959 INFO L300 CfgBuilder]: Removed 10 assume(true) statements. [2022-11-23 14:35:25,965 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:35:25 BoogieIcfgContainer [2022-11-23 14:35:25,965 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 14:35:25,968 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 14:35:25,968 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 14:35:25,971 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 14:35:25,971 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 02:34:45" (1/3) ... [2022-11-23 14:35:25,972 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6809c0ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:35:25, skipping insertion in model container [2022-11-23 14:35:25,972 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:34:53" (2/3) ... [2022-11-23 14:35:25,973 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6809c0ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:35:25, skipping insertion in model container [2022-11-23 14:35:25,973 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:35:25" (3/3) ... [2022-11-23 14:35:25,974 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.0-rc1---drivers--block--skd.ko.cil.i [2022-11-23 14:35:26,009 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 14:35:26,010 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 34 error locations. [2022-11-23 14:35:26,126 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 14:35:26,133 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;@e265e03, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 14:35:26,133 INFO L358 AbstractCegarLoop]: Starting to check reachability of 34 error locations. [2022-11-23 14:35:26,147 INFO L276 IsEmpty]: Start isEmpty. Operand has 2712 states, 1619 states have (on average 1.3341568869672638) internal successors, (2160), 1737 states have internal predecessors, (2160), 899 states have call successors, (899), 161 states have call predecessors, (899), 160 states have return successors, (889), 855 states have call predecessors, (889), 889 states have call successors, (889) [2022-11-23 14:35:26,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-11-23 14:35:26,158 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:35:26,158 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:35:26,159 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_linux_arch_io_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-11-23 14:35:26,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:35:26,166 INFO L85 PathProgramCache]: Analyzing trace with hash 861784704, now seen corresponding path program 1 times [2022-11-23 14:35:26,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:35:26,177 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1936885815] [2022-11-23 14:35:26,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:35:26,178 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:35:26,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:35:28,245 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-23 14:35:28,246 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:35:28,246 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1936885815] [2022-11-23 14:35:28,246 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1936885815] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:35:28,247 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:35:28,247 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-23 14:35:28,248 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1262031448] [2022-11-23 14:35:28,249 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:35:28,254 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 14:35:28,254 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:35:28,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 14:35:28,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-23 14:35:28,298 INFO L87 Difference]: Start difference. First operand has 2712 states, 1619 states have (on average 1.3341568869672638) internal successors, (2160), 1737 states have internal predecessors, (2160), 899 states have call successors, (899), 161 states have call predecessors, (899), 160 states have return successors, (889), 855 states have call predecessors, (889), 889 states have call successors, (889) Second operand has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-11-23 14:35:31,855 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 [] [2022-11-23 14:35:34,246 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:35:37,452 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:35:44,469 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:35:45,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:35:45,658 INFO L93 Difference]: Finished difference Result 7915 states and 11747 transitions. [2022-11-23 14:35:45,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-23 14:35:45,664 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 47 [2022-11-23 14:35:45,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:35:45,730 INFO L225 Difference]: With dead ends: 7915 [2022-11-23 14:35:45,730 INFO L226 Difference]: Without dead ends: 5192 [2022-11-23 14:35:45,765 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 [2022-11-23 14:35:45,769 INFO L413 NwaCegarLoop]: 4551 mSDtfsCounter, 3633 mSDsluCounter, 7929 mSDsCounter, 0 mSdLazyCounter, 1634 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3635 SdHoareTripleChecker+Valid, 12480 SdHoareTripleChecker+Invalid, 1636 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1634 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.8s IncrementalHoareTripleChecker+Time [2022-11-23 14:35:45,769 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3635 Valid, 12480 Invalid, 1636 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 1634 Invalid, 1 Unknown, 0 Unchecked, 16.8s Time] [2022-11-23 14:35:45,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5192 states. [2022-11-23 14:35:46,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5192 to 5008. [2022-11-23 14:35:46,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5008 states, 3010 states have (on average 1.3102990033222592) internal successors, (3944), 3200 states have internal predecessors, (3944), 1670 states have call successors, (1670), 296 states have call predecessors, (1670), 294 states have return successors, (1671), 1595 states have call predecessors, (1671), 1668 states have call successors, (1671) [2022-11-23 14:35:46,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5008 states to 5008 states and 7285 transitions. [2022-11-23 14:35:46,268 INFO L78 Accepts]: Start accepts. Automaton has 5008 states and 7285 transitions. Word has length 47 [2022-11-23 14:35:46,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:35:46,269 INFO L495 AbstractCegarLoop]: Abstraction has 5008 states and 7285 transitions. [2022-11-23 14:35:46,270 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-11-23 14:35:46,270 INFO L276 IsEmpty]: Start isEmpty. Operand 5008 states and 7285 transitions. [2022-11-23 14:35:46,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-11-23 14:35:46,274 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:35:46,274 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:35:46,275 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-23 14:35:46,275 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_linux_block_genhd_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-11-23 14:35:46,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:35:46,276 INFO L85 PathProgramCache]: Analyzing trace with hash -1018073916, now seen corresponding path program 1 times [2022-11-23 14:35:46,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:35:46,276 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1423961135] [2022-11-23 14:35:46,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:35:46,277 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:35:46,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:35:47,474 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-23 14:35:47,475 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:35:47,475 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1423961135] [2022-11-23 14:35:47,475 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1423961135] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:35:47,475 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:35:47,475 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-23 14:35:47,476 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [391283712] [2022-11-23 14:35:47,476 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:35:47,477 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 14:35:47,477 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:35:47,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 14:35:47,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-23 14:35:47,478 INFO L87 Difference]: Start difference. First operand 5008 states and 7285 transitions. Second operand has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-11-23 14:35:51,081 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 [] [2022-11-23 14:35:54,330 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.41s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:35:55,957 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.63s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:36:05,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:36:05,215 INFO L93 Difference]: Finished difference Result 9855 states and 14345 transitions. [2022-11-23 14:36:05,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-23 14:36:05,215 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 52 [2022-11-23 14:36:05,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:36:05,282 INFO L225 Difference]: With dead ends: 9855 [2022-11-23 14:36:05,282 INFO L226 Difference]: Without dead ends: 9853 [2022-11-23 14:36:05,290 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 [2022-11-23 14:36:05,290 INFO L413 NwaCegarLoop]: 4434 mSDtfsCounter, 3637 mSDsluCounter, 7777 mSDsCounter, 0 mSdLazyCounter, 1599 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3639 SdHoareTripleChecker+Valid, 12211 SdHoareTripleChecker+Invalid, 1602 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1599 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.3s IncrementalHoareTripleChecker+Time [2022-11-23 14:36:05,291 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3639 Valid, 12211 Invalid, 1602 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 1599 Invalid, 1 Unknown, 0 Unchecked, 17.3s Time] [2022-11-23 14:36:05,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9853 states. [2022-11-23 14:36:06,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9853 to 9669. [2022-11-23 14:36:06,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9669 states, 5820 states have (on average 1.3116838487972509) internal successors, (7634), 6167 states have internal predecessors, (7634), 3248 states have call successors, (3248), 570 states have call predecessors, (3248), 567 states have return successors, (3267), 3097 states have call predecessors, (3267), 3246 states have call successors, (3267) [2022-11-23 14:36:06,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9669 states to 9669 states and 14149 transitions. [2022-11-23 14:36:06,167 INFO L78 Accepts]: Start accepts. Automaton has 9669 states and 14149 transitions. Word has length 52 [2022-11-23 14:36:06,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:36:06,168 INFO L495 AbstractCegarLoop]: Abstraction has 9669 states and 14149 transitions. [2022-11-23 14:36:06,169 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-11-23 14:36:06,169 INFO L276 IsEmpty]: Start isEmpty. Operand 9669 states and 14149 transitions. [2022-11-23 14:36:06,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-11-23 14:36:06,178 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:36:06,179 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:36:06,179 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-23 14:36:06,180 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_linux_block_queue_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-11-23 14:36:06,185 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:36:06,190 INFO L85 PathProgramCache]: Analyzing trace with hash 665765202, now seen corresponding path program 1 times [2022-11-23 14:36:06,191 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:36:06,191 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [612132889] [2022-11-23 14:36:06,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:36:06,191 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:36:06,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:36:07,381 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-23 14:36:07,382 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:36:07,382 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [612132889] [2022-11-23 14:36:07,382 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [612132889] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:36:07,382 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:36:07,383 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-23 14:36:07,383 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1575854412] [2022-11-23 14:36:07,383 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:36:07,384 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 14:36:07,384 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:36:07,385 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 14:36:07,385 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-23 14:36:07,385 INFO L87 Difference]: Start difference. First operand 9669 states and 14149 transitions. Second operand has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-23 14:36:10,867 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:36:14,097 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.59s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:36:15,208 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:36:18,418 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:36:24,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:36:24,437 INFO L93 Difference]: Finished difference Result 14542 states and 21245 transitions. [2022-11-23 14:36:24,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-23 14:36:24,437 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 57 [2022-11-23 14:36:24,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:36:24,530 INFO L225 Difference]: With dead ends: 14542 [2022-11-23 14:36:24,530 INFO L226 Difference]: Without dead ends: 14540 [2022-11-23 14:36:24,545 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 [2022-11-23 14:36:24,546 INFO L413 NwaCegarLoop]: 4437 mSDtfsCounter, 3638 mSDsluCounter, 7779 mSDsCounter, 0 mSdLazyCounter, 1593 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3640 SdHoareTripleChecker+Valid, 12216 SdHoareTripleChecker+Invalid, 1596 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1593 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.4s IncrementalHoareTripleChecker+Time [2022-11-23 14:36:24,547 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3640 Valid, 12216 Invalid, 1596 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 1593 Invalid, 1 Unknown, 0 Unchecked, 16.4s Time] [2022-11-23 14:36:24,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14540 states. [2022-11-23 14:36:25,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14540 to 14372. [2022-11-23 14:36:25,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14372 states, 8656 states have (on average 1.3119223659889094) internal successors, (11356), 9156 states have internal predecessors, (11356), 4838 states have call successors, (4838), 847 states have call predecessors, (4838), 844 states have return successors, (4877), 4616 states have call predecessors, (4877), 4836 states have call successors, (4877) [2022-11-23 14:36:25,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14372 states to 14372 states and 21071 transitions. [2022-11-23 14:36:25,598 INFO L78 Accepts]: Start accepts. Automaton has 14372 states and 21071 transitions. Word has length 57 [2022-11-23 14:36:25,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:36:25,601 INFO L495 AbstractCegarLoop]: Abstraction has 14372 states and 21071 transitions. [2022-11-23 14:36:25,601 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-23 14:36:25,601 INFO L276 IsEmpty]: Start isEmpty. Operand 14372 states and 21071 transitions. [2022-11-23 14:36:25,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2022-11-23 14:36:25,605 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:36:25,605 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:36:25,605 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-23 14:36:25,606 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_linux_block_request_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-11-23 14:36:25,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:36:25,607 INFO L85 PathProgramCache]: Analyzing trace with hash 867434543, now seen corresponding path program 1 times [2022-11-23 14:36:25,607 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:36:25,607 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1068392163] [2022-11-23 14:36:25,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:36:25,608 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:36:25,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:36:26,542 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-23 14:36:26,543 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:36:26,543 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1068392163] [2022-11-23 14:36:26,543 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1068392163] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:36:26,543 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:36:26,544 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-23 14:36:26,544 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [594454689] [2022-11-23 14:36:26,544 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:36:26,544 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 14:36:26,545 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:36:26,545 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 14:36:26,545 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-23 14:36:26,545 INFO L87 Difference]: Start difference. First operand 14372 states and 21071 transitions. Second operand has 4 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-23 14:36:29,952 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:36:33,645 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.84s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:36:35,602 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.96s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:36:37,614 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:36:38,687 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:36:45,996 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:36:47,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:36:47,122 INFO L93 Difference]: Finished difference Result 19241 states and 28149 transitions. [2022-11-23 14:36:47,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-23 14:36:47,122 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 62 [2022-11-23 14:36:47,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:36:47,217 INFO L225 Difference]: With dead ends: 19241 [2022-11-23 14:36:47,217 INFO L226 Difference]: Without dead ends: 19239 [2022-11-23 14:36:47,233 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 [2022-11-23 14:36:47,234 INFO L413 NwaCegarLoop]: 4512 mSDtfsCounter, 3631 mSDsluCounter, 7856 mSDsCounter, 0 mSdLazyCounter, 1619 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3633 SdHoareTripleChecker+Valid, 12368 SdHoareTripleChecker+Invalid, 1622 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1619 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.9s IncrementalHoareTripleChecker+Time [2022-11-23 14:36:47,234 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3633 Valid, 12368 Invalid, 1622 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 1619 Invalid, 2 Unknown, 0 Unchecked, 19.9s Time] [2022-11-23 14:36:47,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19239 states. [2022-11-23 14:36:48,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19239 to 19083. [2022-11-23 14:36:48,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19083 states, 11497 states have (on average 1.3120814125424023) internal successors, (15085), 12152 states have internal predecessors, (15085), 6430 states have call successors, (6430), 1125 states have call predecessors, (6430), 1122 states have return successors, (6475), 6135 states have call predecessors, (6475), 6428 states have call successors, (6475) [2022-11-23 14:36:48,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19083 states to 19083 states and 27990 transitions. [2022-11-23 14:36:48,974 INFO L78 Accepts]: Start accepts. Automaton has 19083 states and 27990 transitions. Word has length 62 [2022-11-23 14:36:48,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:36:48,974 INFO L495 AbstractCegarLoop]: Abstraction has 19083 states and 27990 transitions. [2022-11-23 14:36:48,975 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-23 14:36:48,975 INFO L276 IsEmpty]: Start isEmpty. Operand 19083 states and 27990 transitions. [2022-11-23 14:36:48,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-11-23 14:36:48,978 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:36:48,978 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:36:48,979 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-23 14:36:48,979 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_linux_drivers_base_class_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-11-23 14:36:48,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:36:48,980 INFO L85 PathProgramCache]: Analyzing trace with hash 1942876082, now seen corresponding path program 1 times [2022-11-23 14:36:48,981 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:36:48,981 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [400504871] [2022-11-23 14:36:48,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:36:48,981 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:36:49,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:36:50,077 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-23 14:36:50,077 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:36:50,078 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [400504871] [2022-11-23 14:36:50,078 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [400504871] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:36:50,078 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:36:50,078 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-23 14:36:50,079 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1510818087] [2022-11-23 14:36:50,079 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:36:50,081 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 14:36:50,081 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:36:50,081 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 14:36:50,081 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-23 14:36:50,082 INFO L87 Difference]: Start difference. First operand 19083 states and 27990 transitions. Second operand has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-23 14:36:53,679 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 [] [2022-11-23 14:37:06,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:37:06,292 INFO L93 Difference]: Finished difference Result 19239 states and 28147 transitions. [2022-11-23 14:37:06,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-23 14:37:06,293 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 67 [2022-11-23 14:37:06,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:37:06,406 INFO L225 Difference]: With dead ends: 19239 [2022-11-23 14:37:06,406 INFO L226 Difference]: Without dead ends: 19237 [2022-11-23 14:37:06,422 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 [2022-11-23 14:37:06,423 INFO L413 NwaCegarLoop]: 4512 mSDtfsCounter, 3628 mSDsluCounter, 7856 mSDsCounter, 0 mSdLazyCounter, 1620 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3630 SdHoareTripleChecker+Valid, 12368 SdHoareTripleChecker+Invalid, 1622 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1620 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.5s IncrementalHoareTripleChecker+Time [2022-11-23 14:37:06,423 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3630 Valid, 12368 Invalid, 1622 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1620 Invalid, 1 Unknown, 0 Unchecked, 15.5s Time] [2022-11-23 14:37:06,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19237 states. [2022-11-23 14:37:07,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19237 to 19089. [2022-11-23 14:37:07,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19089 states, 11500 states have (on average 1.312) internal successors, (15088), 12155 states have internal predecessors, (15088), 6432 states have call successors, (6432), 1126 states have call predecessors, (6432), 1123 states have return successors, (6477), 6137 states have call predecessors, (6477), 6430 states have call successors, (6477) [2022-11-23 14:37:07,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19089 states to 19089 states and 27997 transitions. [2022-11-23 14:37:07,861 INFO L78 Accepts]: Start accepts. Automaton has 19089 states and 27997 transitions. Word has length 67 [2022-11-23 14:37:07,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:37:07,862 INFO L495 AbstractCegarLoop]: Abstraction has 19089 states and 27997 transitions. [2022-11-23 14:37:07,862 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-23 14:37:07,862 INFO L276 IsEmpty]: Start isEmpty. Operand 19089 states and 27997 transitions. [2022-11-23 14:37:07,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2022-11-23 14:37:07,863 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:37:07,864 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:37:07,864 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-23 14:37:07,864 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_linux_fs_char_dev_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-11-23 14:37:07,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:37:07,865 INFO L85 PathProgramCache]: Analyzing trace with hash -1182141230, now seen corresponding path program 1 times [2022-11-23 14:37:07,865 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:37:07,865 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1470866971] [2022-11-23 14:37:07,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:37:07,865 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:37:08,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:37:09,280 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-23 14:37:09,281 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:37:09,281 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1470866971] [2022-11-23 14:37:09,281 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1470866971] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:37:09,281 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:37:09,281 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-23 14:37:09,282 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1710074330] [2022-11-23 14:37:09,282 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:37:09,282 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 14:37:09,282 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:37:09,283 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 14:37:09,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-23 14:37:09,283 INFO L87 Difference]: Start difference. First operand 19089 states and 27997 transitions. Second operand has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-23 14:37:12,783 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 [] [2022-11-23 14:37:16,990 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:37:20,528 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:37:28,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:37:28,757 INFO L93 Difference]: Finished difference Result 25550 states and 37417 transitions. [2022-11-23 14:37:28,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-23 14:37:28,757 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 72 [2022-11-23 14:37:28,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:37:28,889 INFO L225 Difference]: With dead ends: 25550 [2022-11-23 14:37:28,889 INFO L226 Difference]: Without dead ends: 25548 [2022-11-23 14:37:28,904 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 [2022-11-23 14:37:28,905 INFO L413 NwaCegarLoop]: 4507 mSDtfsCounter, 3599 mSDsluCounter, 7851 mSDsCounter, 0 mSdLazyCounter, 1616 mSolverCounterSat, 1 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3601 SdHoareTripleChecker+Valid, 12358 SdHoareTripleChecker+Invalid, 1620 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1616 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.3s IncrementalHoareTripleChecker+Time [2022-11-23 14:37:28,905 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3601 Valid, 12358 Invalid, 1620 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 1616 Invalid, 3 Unknown, 0 Unchecked, 18.3s Time] [2022-11-23 14:37:28,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25548 states. [2022-11-23 14:37:30,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25548 to 25404. [2022-11-23 14:37:30,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25404 states, 15338 states have (on average 1.3152301473464598) internal successors, (20173), 16237 states have internal predecessors, (20173), 8527 states have call successors, (8527), 1508 states have call predecessors, (8527), 1505 states have return successors, (8572), 8096 states have call predecessors, (8572), 8525 states have call successors, (8572) [2022-11-23 14:37:30,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25404 states to 25404 states and 37272 transitions. [2022-11-23 14:37:30,833 INFO L78 Accepts]: Start accepts. Automaton has 25404 states and 37272 transitions. Word has length 72 [2022-11-23 14:37:30,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:37:30,836 INFO L495 AbstractCegarLoop]: Abstraction has 25404 states and 37272 transitions. [2022-11-23 14:37:30,837 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-23 14:37:30,837 INFO L276 IsEmpty]: Start isEmpty. Operand 25404 states and 37272 transitions. [2022-11-23 14:37:30,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-11-23 14:37:30,838 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:37:30,839 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:37:30,839 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-23 14:37:30,839 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-11-23 14:37:30,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:37:30,840 INFO L85 PathProgramCache]: Analyzing trace with hash 1001981715, now seen corresponding path program 1 times [2022-11-23 14:37:30,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:37:30,840 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [731311392] [2022-11-23 14:37:30,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:37:30,841 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:37:31,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:37:31,989 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-23 14:37:31,989 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:37:31,990 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [731311392] [2022-11-23 14:37:31,990 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [731311392] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:37:31,990 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:37:31,990 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-23 14:37:31,991 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2013859916] [2022-11-23 14:37:31,991 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:37:31,991 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 14:37:31,992 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:37:31,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 14:37:31,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-23 14:37:31,993 INFO L87 Difference]: Start difference. First operand 25404 states and 37272 transitions. Second operand has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-23 14:37:35,401 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:37:39,533 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:37:41,811 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:37:49,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:37:49,101 INFO L93 Difference]: Finished difference Result 25548 states and 37415 transitions. [2022-11-23 14:37:49,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-23 14:37:49,102 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 77 [2022-11-23 14:37:49,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:37:49,240 INFO L225 Difference]: With dead ends: 25548 [2022-11-23 14:37:49,241 INFO L226 Difference]: Without dead ends: 25546 [2022-11-23 14:37:49,257 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 [2022-11-23 14:37:49,258 INFO L413 NwaCegarLoop]: 4507 mSDtfsCounter, 3596 mSDsluCounter, 7851 mSDsCounter, 0 mSdLazyCounter, 1617 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3598 SdHoareTripleChecker+Valid, 12358 SdHoareTripleChecker+Invalid, 1620 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1617 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.9s IncrementalHoareTripleChecker+Time [2022-11-23 14:37:49,258 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3598 Valid, 12358 Invalid, 1620 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 1617 Invalid, 2 Unknown, 0 Unchecked, 15.9s Time] [2022-11-23 14:37:49,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25546 states. [2022-11-23 14:37:50,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25546 to 25410. [2022-11-23 14:37:50,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25410 states, 15341 states have (on average 1.3151685027051692) internal successors, (20176), 16240 states have internal predecessors, (20176), 8529 states have call successors, (8529), 1509 states have call predecessors, (8529), 1506 states have return successors, (8574), 8098 states have call predecessors, (8574), 8527 states have call successors, (8574) [2022-11-23 14:37:50,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25410 states to 25410 states and 37279 transitions. [2022-11-23 14:37:50,856 INFO L78 Accepts]: Start accepts. Automaton has 25410 states and 37279 transitions. Word has length 77 [2022-11-23 14:37:50,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:37:50,857 INFO L495 AbstractCegarLoop]: Abstraction has 25410 states and 37279 transitions. [2022-11-23 14:37:50,857 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-23 14:37:50,858 INFO L276 IsEmpty]: Start isEmpty. Operand 25410 states and 37279 transitions. [2022-11-23 14:37:50,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2022-11-23 14:37:50,866 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:37:50,867 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:37:50,867 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-23 14:37:50,867 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-11-23 14:37:50,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:37:50,868 INFO L85 PathProgramCache]: Analyzing trace with hash 761865565, now seen corresponding path program 1 times [2022-11-23 14:37:50,868 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:37:50,868 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1328610434] [2022-11-23 14:37:50,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:37:50,869 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:37:51,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:37:51,799 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2022-11-23 14:37:51,800 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:37:51,800 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1328610434] [2022-11-23 14:37:51,800 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1328610434] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:37:51,800 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:37:51,800 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 14:37:51,800 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2068041480] [2022-11-23 14:37:51,801 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:37:51,802 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 14:37:51,802 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:37:51,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 14:37:51,802 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:37:51,803 INFO L87 Difference]: Start difference. First operand 25410 states and 37279 transitions. Second operand has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-23 14:37:54,846 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 [] [2022-11-23 14:38:01,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:38:01,517 INFO L93 Difference]: Finished difference Result 53788 states and 78560 transitions. [2022-11-23 14:38:01,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 14:38:01,518 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 93 [2022-11-23 14:38:01,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:38:01,647 INFO L225 Difference]: With dead ends: 53788 [2022-11-23 14:38:01,647 INFO L226 Difference]: Without dead ends: 28396 [2022-11-23 14:38:01,755 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:38:01,756 INFO L413 NwaCegarLoop]: 3908 mSDtfsCounter, 3642 mSDsluCounter, 1056 mSDsCounter, 0 mSdLazyCounter, 744 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3642 SdHoareTripleChecker+Valid, 4964 SdHoareTripleChecker+Invalid, 746 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 744 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.1s IncrementalHoareTripleChecker+Time [2022-11-23 14:38:01,757 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3642 Valid, 4964 Invalid, 746 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 744 Invalid, 1 Unknown, 0 Unchecked, 8.1s Time] [2022-11-23 14:38:01,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28396 states. [2022-11-23 14:38:03,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28396 to 28370. [2022-11-23 14:38:03,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28370 states, 17086 states have (on average 1.3082640758515744) internal successors, (22353), 18027 states have internal predecessors, (22353), 9437 states have call successors, (9437), 1816 states have call predecessors, (9437), 1813 states have return successors, (9490), 8996 states have call predecessors, (9490), 9435 states have call successors, (9490) [2022-11-23 14:38:03,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28370 states to 28370 states and 41280 transitions. [2022-11-23 14:38:03,620 INFO L78 Accepts]: Start accepts. Automaton has 28370 states and 41280 transitions. Word has length 93 [2022-11-23 14:38:03,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:38:03,621 INFO L495 AbstractCegarLoop]: Abstraction has 28370 states and 41280 transitions. [2022-11-23 14:38:03,621 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-23 14:38:03,622 INFO L276 IsEmpty]: Start isEmpty. Operand 28370 states and 41280 transitions. [2022-11-23 14:38:03,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-11-23 14:38:03,623 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:38:03,624 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:38:03,624 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-23 14:38:03,624 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_linux_kernel_locking_rwlock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-11-23 14:38:03,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:38:03,625 INFO L85 PathProgramCache]: Analyzing trace with hash -698482538, now seen corresponding path program 1 times [2022-11-23 14:38:03,625 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:38:03,625 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1436760833] [2022-11-23 14:38:03,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:38:03,625 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:38:03,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:38:04,976 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-23 14:38:04,976 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:38:04,977 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1436760833] [2022-11-23 14:38:04,977 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1436760833] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:38:04,977 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:38:04,977 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-23 14:38:04,977 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1922652649] [2022-11-23 14:38:04,977 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:38:04,978 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 14:38:04,978 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:38:04,979 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 14:38:04,979 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-23 14:38:04,979 INFO L87 Difference]: Start difference. First operand 28370 states and 41280 transitions. Second operand has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-11-23 14:38:08,371 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:38:12,401 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:38:14,319 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:38:21,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:38:21,219 INFO L93 Difference]: Finished difference Result 28504 states and 41413 transitions. [2022-11-23 14:38:21,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-23 14:38:21,220 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 82 [2022-11-23 14:38:21,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:38:21,318 INFO L225 Difference]: With dead ends: 28504 [2022-11-23 14:38:21,318 INFO L226 Difference]: Without dead ends: 28502 [2022-11-23 14:38:21,329 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 [2022-11-23 14:38:21,330 INFO L413 NwaCegarLoop]: 4629 mSDtfsCounter, 3596 mSDsluCounter, 7969 mSDsCounter, 0 mSdLazyCounter, 1641 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3598 SdHoareTripleChecker+Valid, 12598 SdHoareTripleChecker+Invalid, 1644 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1641 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.0s IncrementalHoareTripleChecker+Time [2022-11-23 14:38:21,330 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3598 Valid, 12598 Invalid, 1644 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1641 Invalid, 2 Unknown, 0 Unchecked, 15.0s Time] [2022-11-23 14:38:21,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28502 states. [2022-11-23 14:38:22,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28502 to 28378. [2022-11-23 14:38:22,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28378 states, 17091 states have (on average 1.3082324030191328) internal successors, (22359), 18032 states have internal predecessors, (22359), 9439 states have call successors, (9439), 1817 states have call predecessors, (9439), 1814 states have return successors, (9492), 8998 states have call predecessors, (9492), 9437 states have call successors, (9492) [2022-11-23 14:38:22,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28378 states to 28378 states and 41290 transitions. [2022-11-23 14:38:22,928 INFO L78 Accepts]: Start accepts. Automaton has 28378 states and 41290 transitions. Word has length 82 [2022-11-23 14:38:22,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:38:22,928 INFO L495 AbstractCegarLoop]: Abstraction has 28378 states and 41290 transitions. [2022-11-23 14:38:22,928 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, (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) [2022-11-23 14:38:22,928 INFO L276 IsEmpty]: Start isEmpty. Operand 28378 states and 41290 transitions. [2022-11-23 14:38:22,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-11-23 14:38:22,930 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:38:22,930 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:38:22,930 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-23 14:38:22,931 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-11-23 14:38:22,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:38:22,931 INFO L85 PathProgramCache]: Analyzing trace with hash -1261708424, now seen corresponding path program 1 times [2022-11-23 14:38:22,931 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:38:22,932 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [367436200] [2022-11-23 14:38:22,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:38:22,932 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:38:23,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:38:23,927 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2022-11-23 14:38:23,928 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:38:23,928 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [367436200] [2022-11-23 14:38:23,928 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [367436200] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 14:38:23,928 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1220294721] [2022-11-23 14:38:23,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:38:23,929 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 14:38:23,929 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45ff14a4-beca-4754-ad58-bc502976c97d/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 14:38:23,933 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45ff14a4-beca-4754-ad58-bc502976c97d/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 14:38:23,954 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45ff14a4-beca-4754-ad58-bc502976c97d/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-23 14:38:26,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:38:26,248 INFO L263 TraceCheckSpWp]: Trace formula consists of 7718 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-23 14:38:26,265 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:38:26,346 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2022-11-23 14:38:26,347 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 14:38:26,347 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1220294721] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:38:26,347 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-23 14:38:26,347 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2022-11-23 14:38:26,348 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1361214696] [2022-11-23 14:38:26,348 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:38:26,349 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 14:38:26,349 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:38:26,349 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 14:38:26,349 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-11-23 14:38:26,350 INFO L87 Difference]: Start difference. First operand 28378 states and 41290 transitions. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-23 14:38:29,218 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 [] [2022-11-23 14:38:32,721 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.49s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:38:34,467 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:38:37,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:38:37,926 INFO L93 Difference]: Finished difference Result 56776 states and 82585 transitions. [2022-11-23 14:38:37,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 14:38:37,927 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 98 [2022-11-23 14:38:37,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:38:38,022 INFO L225 Difference]: With dead ends: 56776 [2022-11-23 14:38:38,022 INFO L226 Difference]: Without dead ends: 28416 [2022-11-23 14:38:38,099 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-11-23 14:38:38,100 INFO L413 NwaCegarLoop]: 3909 mSDtfsCounter, 3629 mSDsluCounter, 1065 mSDsCounter, 0 mSdLazyCounter, 745 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3629 SdHoareTripleChecker+Valid, 4974 SdHoareTripleChecker+Invalid, 747 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 745 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.0s IncrementalHoareTripleChecker+Time [2022-11-23 14:38:38,100 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3629 Valid, 4974 Invalid, 747 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 745 Invalid, 1 Unknown, 0 Unchecked, 10.0s Time] [2022-11-23 14:38:38,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28416 states. [2022-11-23 14:38:39,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28416 to 28390. [2022-11-23 14:38:39,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28390 states, 17095 states have (on average 1.3076923076923077) internal successors, (22355), 18036 states have internal predecessors, (22355), 9443 states have call successors, (9443), 1821 states have call predecessors, (9443), 1818 states have return successors, (9496), 9002 states have call predecessors, (9496), 9441 states have call successors, (9496) [2022-11-23 14:38:40,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28390 states to 28390 states and 41294 transitions. [2022-11-23 14:38:40,018 INFO L78 Accepts]: Start accepts. Automaton has 28390 states and 41294 transitions. Word has length 98 [2022-11-23 14:38:40,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:38:40,019 INFO L495 AbstractCegarLoop]: Abstraction has 28390 states and 41294 transitions. [2022-11-23 14:38:40,019 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-23 14:38:40,019 INFO L276 IsEmpty]: Start isEmpty. Operand 28390 states and 41294 transitions. [2022-11-23 14:38:40,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-11-23 14:38:40,020 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:38:40,020 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:38:40,039 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45ff14a4-beca-4754-ad58-bc502976c97d/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-11-23 14:38:40,221 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45ff14a4-beca-4754-ad58-bc502976c97d/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-11-23 14:38:40,221 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_linux_kernel_locking_rwlock_check_final_stateErr1ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-11-23 14:38:40,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:38:40,222 INFO L85 PathProgramCache]: Analyzing trace with hash -1226670663, now seen corresponding path program 1 times [2022-11-23 14:38:40,222 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:38:40,222 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [491308704] [2022-11-23 14:38:40,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:38:40,222 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:38:40,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:38:41,493 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-23 14:38:41,494 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:38:41,494 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [491308704] [2022-11-23 14:38:41,494 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [491308704] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:38:41,495 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:38:41,495 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-23 14:38:41,495 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [385756265] [2022-11-23 14:38:41,495 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:38:41,496 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 14:38:41,496 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:38:41,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 14:38:41,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-23 14:38:41,497 INFO L87 Difference]: Start difference. First operand 28390 states and 41294 transitions. Second operand has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-11-23 14:38:45,251 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:38:49,567 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:38:51,359 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.53s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:38:52,657 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:39:00,783 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.92s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:39:02,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:39:02,494 INFO L93 Difference]: Finished difference Result 28531 states and 41434 transitions. [2022-11-23 14:39:02,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-23 14:39:02,494 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 84 [2022-11-23 14:39:02,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:39:02,577 INFO L225 Difference]: With dead ends: 28531 [2022-11-23 14:39:02,577 INFO L226 Difference]: Without dead ends: 28529 [2022-11-23 14:39:02,585 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 [2022-11-23 14:39:02,586 INFO L413 NwaCegarLoop]: 4611 mSDtfsCounter, 3611 mSDsluCounter, 7955 mSDsCounter, 0 mSdLazyCounter, 1640 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3613 SdHoareTripleChecker+Valid, 12566 SdHoareTripleChecker+Invalid, 1642 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1640 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.4s IncrementalHoareTripleChecker+Time [2022-11-23 14:39:02,586 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3613 Valid, 12566 Invalid, 1642 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 1640 Invalid, 1 Unknown, 0 Unchecked, 19.4s Time] [2022-11-23 14:39:02,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28529 states. [2022-11-23 14:39:04,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28529 to 28407. [2022-11-23 14:39:04,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28407 states, 17106 states have (on average 1.307611364433532) internal successors, (22368), 18047 states have internal predecessors, (22368), 9446 states have call successors, (9446), 1824 states have call predecessors, (9446), 1821 states have return successors, (9499), 9005 states have call predecessors, (9499), 9444 states have call successors, (9499) [2022-11-23 14:39:04,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28407 states to 28407 states and 41313 transitions. [2022-11-23 14:39:04,373 INFO L78 Accepts]: Start accepts. Automaton has 28407 states and 41313 transitions. Word has length 84 [2022-11-23 14:39:04,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:39:04,374 INFO L495 AbstractCegarLoop]: Abstraction has 28407 states and 41313 transitions. [2022-11-23 14:39:04,374 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-11-23 14:39:04,374 INFO L276 IsEmpty]: Start isEmpty. Operand 28407 states and 41313 transitions. [2022-11-23 14:39:04,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2022-11-23 14:39:04,377 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:39:04,378 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:39:04,378 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-23 14:39:04,378 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_linux_kernel_module_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-11-23 14:39:04,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:39:04,379 INFO L85 PathProgramCache]: Analyzing trace with hash -994979181, now seen corresponding path program 1 times [2022-11-23 14:39:04,379 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:39:04,379 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [81459787] [2022-11-23 14:39:04,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:39:04,380 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:39:04,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:39:05,388 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-23 14:39:05,389 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:39:05,389 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [81459787] [2022-11-23 14:39:05,389 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [81459787] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:39:05,389 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:39:05,390 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-23 14:39:05,390 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1450054553] [2022-11-23 14:39:05,390 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:39:05,391 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 14:39:05,391 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:39:05,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 14:39:05,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-23 14:39:05,392 INFO L87 Difference]: Start difference. First operand 28407 states and 41313 transitions. Second operand has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-11-23 14:39:08,774 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 [] [2022-11-23 14:39:12,758 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:39:15,727 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:39:22,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:39:22,205 INFO L93 Difference]: Finished difference Result 28527 states and 41432 transitions. [2022-11-23 14:39:22,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-23 14:39:22,206 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 89 [2022-11-23 14:39:22,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:39:22,294 INFO L225 Difference]: With dead ends: 28527 [2022-11-23 14:39:22,294 INFO L226 Difference]: Without dead ends: 28525 [2022-11-23 14:39:22,305 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 [2022-11-23 14:39:22,306 INFO L413 NwaCegarLoop]: 4600 mSDtfsCounter, 3578 mSDsluCounter, 7944 mSDsCounter, 0 mSdLazyCounter, 1637 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3580 SdHoareTripleChecker+Valid, 12544 SdHoareTripleChecker+Invalid, 1640 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1637 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.3s IncrementalHoareTripleChecker+Time [2022-11-23 14:39:22,306 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3580 Valid, 12544 Invalid, 1640 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1637 Invalid, 2 Unknown, 0 Unchecked, 15.3s Time] [2022-11-23 14:39:22,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28525 states. [2022-11-23 14:39:24,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28525 to 28413. [2022-11-23 14:39:24,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28413 states, 17109 states have (on average 1.3075574259161844) internal successors, (22371), 18050 states have internal predecessors, (22371), 9448 states have call successors, (9448), 1825 states have call predecessors, (9448), 1822 states have return successors, (9501), 9007 states have call predecessors, (9501), 9446 states have call successors, (9501) [2022-11-23 14:39:24,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28413 states to 28413 states and 41320 transitions. [2022-11-23 14:39:24,170 INFO L78 Accepts]: Start accepts. Automaton has 28413 states and 41320 transitions. Word has length 89 [2022-11-23 14:39:24,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:39:24,170 INFO L495 AbstractCegarLoop]: Abstraction has 28413 states and 41320 transitions. [2022-11-23 14:39:24,171 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-11-23 14:39:24,171 INFO L276 IsEmpty]: Start isEmpty. Operand 28413 states and 41320 transitions. [2022-11-23 14:39:24,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-11-23 14:39:24,172 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:39:24,172 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:39:24,172 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-23 14:39:24,173 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-11-23 14:39:24,173 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:39:24,173 INFO L85 PathProgramCache]: Analyzing trace with hash 1361285546, now seen corresponding path program 1 times [2022-11-23 14:39:24,173 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:39:24,174 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [93062891] [2022-11-23 14:39:24,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:39:24,174 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:39:24,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:39:25,706 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 59 trivial. 0 not checked. [2022-11-23 14:39:25,707 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:39:25,707 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [93062891] [2022-11-23 14:39:25,707 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [93062891] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:39:25,707 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:39:25,707 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-23 14:39:25,708 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1851061916] [2022-11-23 14:39:25,708 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:39:25,708 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-23 14:39:25,708 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:39:25,709 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-23 14:39:25,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-23 14:39:25,709 INFO L87 Difference]: Start difference. First operand 28413 states and 41320 transitions. Second operand has 5 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-23 14:39:29,931 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:39:34,730 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:39:38,061 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:39:41,446 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:39:48,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:39:48,705 INFO L93 Difference]: Finished difference Result 35165 states and 50442 transitions. [2022-11-23 14:39:48,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-23 14:39:48,706 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 98 [2022-11-23 14:39:48,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:39:48,810 INFO L225 Difference]: With dead ends: 35165 [2022-11-23 14:39:48,810 INFO L226 Difference]: Without dead ends: 35163 [2022-11-23 14:39:48,826 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-23 14:39:48,826 INFO L413 NwaCegarLoop]: 3990 mSDtfsCounter, 2016 mSDsluCounter, 10964 mSDsCounter, 0 mSdLazyCounter, 2083 mSolverCounterSat, 2 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2017 SdHoareTripleChecker+Valid, 14954 SdHoareTripleChecker+Invalid, 2087 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 2083 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.3s IncrementalHoareTripleChecker+Time [2022-11-23 14:39:48,827 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2017 Valid, 14954 Invalid, 2087 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 2083 Invalid, 2 Unknown, 0 Unchecked, 21.3s Time] [2022-11-23 14:39:48,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35163 states. [2022-11-23 14:39:51,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35163 to 34923. [2022-11-23 14:39:51,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34923 states, 21043 states have (on average 1.3008601435156584) internal successors, (27374), 22172 states have internal predecessors, (27374), 11347 states have call successors, (11347), 2530 states have call predecessors, (11347), 2499 states have return successors, (11443), 10761 states have call predecessors, (11443), 11345 states have call successors, (11443) [2022-11-23 14:39:51,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34923 states to 34923 states and 50164 transitions. [2022-11-23 14:39:51,293 INFO L78 Accepts]: Start accepts. Automaton has 34923 states and 50164 transitions. Word has length 98 [2022-11-23 14:39:51,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:39:51,293 INFO L495 AbstractCegarLoop]: Abstraction has 34923 states and 50164 transitions. [2022-11-23 14:39:51,293 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-23 14:39:51,293 INFO L276 IsEmpty]: Start isEmpty. Operand 34923 states and 50164 transitions. [2022-11-23 14:39:51,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2022-11-23 14:39:51,295 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:39:51,296 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:39:51,296 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-23 14:39:51,296 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_linux_kernel_rcu_update_lock_bh_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-11-23 14:39:51,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:39:51,296 INFO L85 PathProgramCache]: Analyzing trace with hash 925610195, now seen corresponding path program 1 times [2022-11-23 14:39:51,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:39:51,297 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [260314943] [2022-11-23 14:39:51,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:39:51,297 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:39:51,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:39:52,231 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-23 14:39:52,231 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:39:52,231 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [260314943] [2022-11-23 14:39:52,231 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [260314943] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:39:52,232 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:39:52,232 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-23 14:39:52,232 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [225224621] [2022-11-23 14:39:52,232 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:39:52,233 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 14:39:52,233 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:39:52,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 14:39:52,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-23 14:39:52,234 INFO L87 Difference]: Start difference. First operand 34923 states and 50164 transitions. Second operand has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-23 14:39:55,758 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:39:58,234 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:40:02,995 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.42s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:40:10,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:40:10,144 INFO L93 Difference]: Finished difference Result 35042 states and 50279 transitions. [2022-11-23 14:40:10,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-23 14:40:10,144 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 94 [2022-11-23 14:40:10,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:40:10,246 INFO L225 Difference]: With dead ends: 35042 [2022-11-23 14:40:10,246 INFO L226 Difference]: Without dead ends: 35040 [2022-11-23 14:40:10,261 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 [2022-11-23 14:40:10,262 INFO L413 NwaCegarLoop]: 4648 mSDtfsCounter, 3607 mSDsluCounter, 7992 mSDsCounter, 0 mSdLazyCounter, 1658 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3609 SdHoareTripleChecker+Valid, 12640 SdHoareTripleChecker+Invalid, 1660 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1658 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.1s IncrementalHoareTripleChecker+Time [2022-11-23 14:40:10,262 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3609 Valid, 12640 Invalid, 1660 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1658 Invalid, 1 Unknown, 0 Unchecked, 16.1s Time] [2022-11-23 14:40:10,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35040 states. [2022-11-23 14:40:12,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35040 to 34934. [2022-11-23 14:40:12,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34934 states, 21049 states have (on average 1.3008218917763315) internal successors, (27381), 22178 states have internal predecessors, (27381), 11350 states have call successors, (11350), 2532 states have call predecessors, (11350), 2501 states have return successors, (11446), 10764 states have call predecessors, (11446), 11348 states have call successors, (11446) [2022-11-23 14:40:12,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34934 states to 34934 states and 50177 transitions. [2022-11-23 14:40:12,598 INFO L78 Accepts]: Start accepts. Automaton has 34934 states and 50177 transitions. Word has length 94 [2022-11-23 14:40:12,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:40:12,599 INFO L495 AbstractCegarLoop]: Abstraction has 34934 states and 50177 transitions. [2022-11-23 14:40:12,599 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-23 14:40:12,599 INFO L276 IsEmpty]: Start isEmpty. Operand 34934 states and 50177 transitions. [2022-11-23 14:40:12,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-11-23 14:40:12,600 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:40:12,601 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:40:12,601 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-23 14:40:12,601 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_linux_kernel_rcu_update_lock_sched_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-11-23 14:40:12,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:40:12,601 INFO L85 PathProgramCache]: Analyzing trace with hash 692615033, now seen corresponding path program 1 times [2022-11-23 14:40:12,602 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:40:12,602 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1337186974] [2022-11-23 14:40:12,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:40:12,602 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:40:12,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:40:13,346 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-23 14:40:13,346 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:40:13,346 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1337186974] [2022-11-23 14:40:13,347 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1337186974] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:40:13,347 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:40:13,347 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-23 14:40:13,350 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [280090902] [2022-11-23 14:40:13,350 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:40:13,351 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 14:40:13,351 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:40:13,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 14:40:13,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-23 14:40:13,352 INFO L87 Difference]: Start difference. First operand 34934 states and 50177 transitions. Second operand has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-23 14:40:16,798 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 [] [2022-11-23 14:40:20,484 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:40:29,143 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:40:31,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:40:31,701 INFO L93 Difference]: Finished difference Result 35040 states and 50277 transitions. [2022-11-23 14:40:31,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-23 14:40:31,701 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 99 [2022-11-23 14:40:31,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:40:31,809 INFO L225 Difference]: With dead ends: 35040 [2022-11-23 14:40:31,809 INFO L226 Difference]: Without dead ends: 35038 [2022-11-23 14:40:31,821 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 [2022-11-23 14:40:31,821 INFO L413 NwaCegarLoop]: 4648 mSDtfsCounter, 3604 mSDsluCounter, 7992 mSDsCounter, 0 mSdLazyCounter, 1657 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3606 SdHoareTripleChecker+Valid, 12640 SdHoareTripleChecker+Invalid, 1660 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1657 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.3s IncrementalHoareTripleChecker+Time [2022-11-23 14:40:31,822 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3606 Valid, 12640 Invalid, 1660 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1657 Invalid, 2 Unknown, 0 Unchecked, 16.3s Time] [2022-11-23 14:40:31,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35038 states. [2022-11-23 14:40:34,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35038 to 34940. [2022-11-23 14:40:34,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34940 states, 21052 states have (on average 1.300779023370701) internal successors, (27384), 22181 states have internal predecessors, (27384), 11352 states have call successors, (11352), 2533 states have call predecessors, (11352), 2502 states have return successors, (11448), 10766 states have call predecessors, (11448), 11350 states have call successors, (11448) [2022-11-23 14:40:34,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34940 states to 34940 states and 50184 transitions. [2022-11-23 14:40:34,201 INFO L78 Accepts]: Start accepts. Automaton has 34940 states and 50184 transitions. Word has length 99 [2022-11-23 14:40:34,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:40:34,202 INFO L495 AbstractCegarLoop]: Abstraction has 34940 states and 50184 transitions. [2022-11-23 14:40:34,202 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-23 14:40:34,202 INFO L276 IsEmpty]: Start isEmpty. Operand 34940 states and 50184 transitions. [2022-11-23 14:40:34,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2022-11-23 14:40:34,204 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:40:34,204 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:40:34,205 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-23 14:40:34,205 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-11-23 14:40:34,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:40:34,205 INFO L85 PathProgramCache]: Analyzing trace with hash -1818461124, now seen corresponding path program 1 times [2022-11-23 14:40:34,206 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:40:34,206 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1250527715] [2022-11-23 14:40:34,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:40:34,206 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:40:34,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:40:35,478 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2022-11-23 14:40:35,478 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:40:35,478 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1250527715] [2022-11-23 14:40:35,479 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1250527715] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:40:35,479 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:40:35,479 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 14:40:35,479 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1029874823] [2022-11-23 14:40:35,479 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:40:35,480 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 14:40:35,480 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:40:35,480 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 14:40:35,480 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:40:35,481 INFO L87 Difference]: Start difference. First operand 34940 states and 50184 transitions. Second operand has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 3 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2022-11-23 14:40:38,267 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 [] [2022-11-23 14:40:50,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:40:50,251 INFO L93 Difference]: Finished difference Result 86197 states and 123952 transitions. [2022-11-23 14:40:50,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 14:40:50,252 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 3 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 116 [2022-11-23 14:40:50,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:40:50,423 INFO L225 Difference]: With dead ends: 86197 [2022-11-23 14:40:50,423 INFO L226 Difference]: Without dead ends: 51275 [2022-11-23 14:40:50,509 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:40:50,510 INFO L413 NwaCegarLoop]: 4784 mSDtfsCounter, 3469 mSDsluCounter, 3344 mSDsCounter, 0 mSdLazyCounter, 1103 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3469 SdHoareTripleChecker+Valid, 8128 SdHoareTripleChecker+Invalid, 1104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1103 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.2s IncrementalHoareTripleChecker+Time [2022-11-23 14:40:50,510 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3469 Valid, 8128 Invalid, 1104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1103 Invalid, 1 Unknown, 0 Unchecked, 11.2s Time] [2022-11-23 14:40:50,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51275 states. [2022-11-23 14:40:53,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51275 to 44324. [2022-11-23 14:40:53,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44324 states, 26686 states have (on average 1.3015813535186989) internal successors, (34734), 28121 states have internal predecessors, (34734), 14470 states have call successors, (14470), 3167 states have call predecessors, (14470), 3134 states have return successors, (14582), 13732 states have call predecessors, (14582), 14468 states have call successors, (14582) [2022-11-23 14:40:54,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44324 states to 44324 states and 63786 transitions. [2022-11-23 14:40:54,174 INFO L78 Accepts]: Start accepts. Automaton has 44324 states and 63786 transitions. Word has length 116 [2022-11-23 14:40:54,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:40:54,175 INFO L495 AbstractCegarLoop]: Abstraction has 44324 states and 63786 transitions. [2022-11-23 14:40:54,175 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 3 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2022-11-23 14:40:54,175 INFO L276 IsEmpty]: Start isEmpty. Operand 44324 states and 63786 transitions. [2022-11-23 14:40:54,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2022-11-23 14:40:54,177 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:40:54,177 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:40:54,178 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-23 14:40:54,178 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-11-23 14:40:54,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:40:54,178 INFO L85 PathProgramCache]: Analyzing trace with hash -1909302802, now seen corresponding path program 1 times [2022-11-23 14:40:54,179 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:40:54,179 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1010659745] [2022-11-23 14:40:54,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:40:54,179 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:40:54,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:40:55,299 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-23 14:40:55,300 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:40:55,300 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1010659745] [2022-11-23 14:40:55,300 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1010659745] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:40:55,300 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:40:55,300 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-23 14:40:55,301 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1205496835] [2022-11-23 14:40:55,301 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:40:55,302 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 14:40:55,302 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:40:55,302 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 14:40:55,303 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-23 14:40:55,303 INFO L87 Difference]: Start difference. First operand 44324 states and 63786 transitions. Second operand has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-11-23 14:40:58,453 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 [] [2022-11-23 14:41:03,851 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:41:06,699 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:41:07,980 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:41:16,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:41:16,297 INFO L93 Difference]: Finished difference Result 44428 states and 63887 transitions. [2022-11-23 14:41:16,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-23 14:41:16,298 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 104 [2022-11-23 14:41:16,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:41:16,487 INFO L225 Difference]: With dead ends: 44428 [2022-11-23 14:41:16,487 INFO L226 Difference]: Without dead ends: 44426 [2022-11-23 14:41:16,507 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 [2022-11-23 14:41:16,507 INFO L413 NwaCegarLoop]: 4512 mSDtfsCounter, 3567 mSDsluCounter, 7856 mSDsCounter, 0 mSdLazyCounter, 1605 mSolverCounterSat, 1 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3569 SdHoareTripleChecker+Valid, 12368 SdHoareTripleChecker+Invalid, 1609 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1605 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.4s IncrementalHoareTripleChecker+Time [2022-11-23 14:41:16,508 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3569 Valid, 12368 Invalid, 1609 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1605 Invalid, 3 Unknown, 0 Unchecked, 18.4s Time] [2022-11-23 14:41:16,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44426 states. [2022-11-23 14:41:19,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44426 to 44340. [2022-11-23 14:41:19,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44340 states, 26695 states have (on average 1.3014796778422926) internal successors, (34743), 28130 states have internal predecessors, (34743), 14474 states have call successors, (14474), 3170 states have call predecessors, (14474), 3137 states have return successors, (14586), 13736 states have call predecessors, (14586), 14472 states have call successors, (14586) [2022-11-23 14:41:20,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44340 states to 44340 states and 63803 transitions. [2022-11-23 14:41:20,124 INFO L78 Accepts]: Start accepts. Automaton has 44340 states and 63803 transitions. Word has length 104 [2022-11-23 14:41:20,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:41:20,124 INFO L495 AbstractCegarLoop]: Abstraction has 44340 states and 63803 transitions. [2022-11-23 14:41:20,124 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-11-23 14:41:20,125 INFO L276 IsEmpty]: Start isEmpty. Operand 44340 states and 63803 transitions. [2022-11-23 14:41:20,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-11-23 14:41:20,127 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:41:20,127 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:41:20,127 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-23 14:41:20,127 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-11-23 14:41:20,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:41:20,128 INFO L85 PathProgramCache]: Analyzing trace with hash 803841909, now seen corresponding path program 1 times [2022-11-23 14:41:20,128 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:41:20,128 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [374031965] [2022-11-23 14:41:20,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:41:20,129 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:41:20,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:41:22,619 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2022-11-23 14:41:22,620 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:41:22,620 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [374031965] [2022-11-23 14:41:22,620 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [374031965] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:41:22,620 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:41:22,621 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-23 14:41:22,621 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [936100859] [2022-11-23 14:41:22,621 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:41:22,622 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-23 14:41:22,622 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:41:22,623 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-23 14:41:22,623 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-11-23 14:41:22,623 INFO L87 Difference]: Start difference. First operand 44340 states and 63803 transitions. Second operand has 7 states, 6 states have (on average 7.666666666666667) internal successors, (46), 6 states have internal predecessors, (46), 3 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (19), 4 states have call predecessors, (19), 3 states have call successors, (19) [2022-11-23 14:41:27,109 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:41:33,608 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:41:34,678 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:41:40,721 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:41:42,112 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:41:44,246 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.41s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:41:58,031 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:42:00,519 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.71s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:42:11,996 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:42:15,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:42:15,741 INFO L93 Difference]: Finished difference Result 56957 states and 81775 transitions. [2022-11-23 14:42:15,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-23 14:42:15,741 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 7.666666666666667) internal successors, (46), 6 states have internal predecessors, (46), 3 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (19), 4 states have call predecessors, (19), 3 states have call successors, (19) Word has length 121 [2022-11-23 14:42:15,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:42:15,967 INFO L225 Difference]: With dead ends: 56957 [2022-11-23 14:42:15,967 INFO L226 Difference]: Without dead ends: 56955 [2022-11-23 14:42:15,987 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=114, Unknown=0, NotChecked=0, Total=156 [2022-11-23 14:42:15,987 INFO L413 NwaCegarLoop]: 5383 mSDtfsCounter, 7228 mSDsluCounter, 21822 mSDsCounter, 0 mSdLazyCounter, 7836 mSolverCounterSat, 6 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 46.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7236 SdHoareTripleChecker+Valid, 27205 SdHoareTripleChecker+Invalid, 7846 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 7836 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 48.7s IncrementalHoareTripleChecker+Time [2022-11-23 14:42:15,988 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7236 Valid, 27205 Invalid, 7846 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [6 Valid, 7836 Invalid, 4 Unknown, 0 Unchecked, 48.7s Time] [2022-11-23 14:42:16,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56955 states. [2022-11-23 14:42:20,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56955 to 56605. [2022-11-23 14:42:20,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56605 states, 34034 states have (on average 1.2990245049068578) internal successors, (44211), 35821 states have internal predecessors, (44211), 18483 states have call successors, (18483), 4087 states have call predecessors, (18483), 4054 states have return successors, (18683), 17569 states have call predecessors, (18683), 18481 states have call successors, (18683) [2022-11-23 14:42:20,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56605 states to 56605 states and 81377 transitions. [2022-11-23 14:42:20,919 INFO L78 Accepts]: Start accepts. Automaton has 56605 states and 81377 transitions. Word has length 121 [2022-11-23 14:42:20,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:42:20,919 INFO L495 AbstractCegarLoop]: Abstraction has 56605 states and 81377 transitions. [2022-11-23 14:42:20,919 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 7.666666666666667) internal successors, (46), 6 states have internal predecessors, (46), 3 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (19), 4 states have call predecessors, (19), 3 states have call successors, (19) [2022-11-23 14:42:20,919 INFO L276 IsEmpty]: Start isEmpty. Operand 56605 states and 81377 transitions. [2022-11-23 14:42:20,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2022-11-23 14:42:20,920 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:42:20,921 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:42:20,921 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-23 14:42:20,921 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_check_alloc_flagsErr1ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-11-23 14:42:20,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:42:20,921 INFO L85 PathProgramCache]: Analyzing trace with hash -1201231482, now seen corresponding path program 1 times [2022-11-23 14:42:20,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:42:20,922 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1260214347] [2022-11-23 14:42:20,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:42:20,922 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:42:21,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:42:21,684 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2022-11-23 14:42:21,684 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:42:21,684 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1260214347] [2022-11-23 14:42:21,684 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1260214347] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:42:21,685 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:42:21,685 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 14:42:21,685 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1075996166] [2022-11-23 14:42:21,685 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:42:21,687 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 14:42:21,687 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:42:21,687 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 14:42:21,687 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:42:21,688 INFO L87 Difference]: Start difference. First operand 56605 states and 81377 transitions. Second operand has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-23 14:42:24,644 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:42:29,310 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:42:38,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:42:38,674 INFO L93 Difference]: Finished difference Result 113232 states and 162919 transitions. [2022-11-23 14:42:38,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 14:42:38,675 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 124 [2022-11-23 14:42:38,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:42:38,949 INFO L225 Difference]: With dead ends: 113232 [2022-11-23 14:42:38,949 INFO L226 Difference]: Without dead ends: 56645 [2022-11-23 14:42:39,335 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:42:39,335 INFO L413 NwaCegarLoop]: 4528 mSDtfsCounter, 3578 mSDsluCounter, 3344 mSDsCounter, 0 mSdLazyCounter, 1053 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3578 SdHoareTripleChecker+Valid, 7872 SdHoareTripleChecker+Invalid, 1054 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1053 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.6s IncrementalHoareTripleChecker+Time [2022-11-23 14:42:39,335 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3578 Valid, 7872 Invalid, 1054 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1053 Invalid, 1 Unknown, 0 Unchecked, 12.6s Time] [2022-11-23 14:42:39,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56645 states.