./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 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d496c0d-021f-4d69-a250-822764345991/bin/utaipan-eEHZpOm5b7/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d496c0d-021f-4d69-a250-822764345991/bin/utaipan-eEHZpOm5b7/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d496c0d-021f-4d69-a250-822764345991/bin/utaipan-eEHZpOm5b7/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d496c0d-021f-4d69-a250-822764345991/bin/utaipan-eEHZpOm5b7/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_7d496c0d-021f-4d69-a250-822764345991/bin/utaipan-eEHZpOm5b7/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d496c0d-021f-4d69-a250-822764345991/bin/utaipan-eEHZpOm5b7 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash b20f48966671566afed85875d0d94a6951898c9c2a2bdf71b35576aeaa27c268 --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-11-25 19:22:27,967 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-25 19:22:27,970 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-25 19:22:28,027 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-25 19:22:28,028 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-25 19:22:28,032 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-25 19:22:28,035 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-25 19:22:28,041 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-25 19:22:28,044 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-25 19:22:28,052 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-25 19:22:28,053 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-25 19:22:28,055 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-25 19:22:28,056 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-25 19:22:28,059 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-25 19:22:28,061 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-25 19:22:28,066 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-25 19:22:28,068 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-25 19:22:28,070 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-25 19:22:28,072 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-25 19:22:28,082 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-25 19:22:28,084 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-25 19:22:28,086 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-25 19:22:28,090 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-25 19:22:28,091 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-25 19:22:28,100 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-25 19:22:28,101 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-25 19:22:28,101 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-25 19:22:28,104 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-25 19:22:28,104 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-25 19:22:28,106 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-25 19:22:28,107 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-25 19:22:28,108 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-25 19:22:28,110 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-25 19:22:28,111 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-25 19:22:28,113 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-25 19:22:28,114 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-25 19:22:28,114 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-25 19:22:28,115 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-25 19:22:28,115 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-25 19:22:28,116 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-25 19:22:28,117 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-25 19:22:28,118 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d496c0d-021f-4d69-a250-822764345991/bin/utaipan-eEHZpOm5b7/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-25 19:22:28,162 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-25 19:22:28,163 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-25 19:22:28,163 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-25 19:22:28,164 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-25 19:22:28,165 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-25 19:22:28,165 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-25 19:22:28,165 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-25 19:22:28,166 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-25 19:22:28,166 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-25 19:22:28,166 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-25 19:22:28,167 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-25 19:22:28,168 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-25 19:22:28,168 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-25 19:22:28,168 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-25 19:22:28,168 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-25 19:22:28,169 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-25 19:22:28,169 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-25 19:22:28,169 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-25 19:22:28,170 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-25 19:22:28,170 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-25 19:22:28,170 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-25 19:22:28,171 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-25 19:22:28,171 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-25 19:22:28,171 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-25 19:22:28,171 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-25 19:22:28,171 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-25 19:22:28,173 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-25 19:22:28,173 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-25 19:22:28,174 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-25 19:22:28,174 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 19:22:28,174 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-25 19:22:28,175 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-25 19:22:28,175 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-25 19:22:28,175 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-25 19:22:28,175 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-25 19:22:28,176 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-25 19:22:28,176 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-25 19:22:28,176 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-25 19:22:28,176 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d496c0d-021f-4d69-a250-822764345991/bin/utaipan-eEHZpOm5b7/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d496c0d-021f-4d69-a250-822764345991/bin/utaipan-eEHZpOm5b7 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b20f48966671566afed85875d0d94a6951898c9c2a2bdf71b35576aeaa27c268 [2021-11-25 19:22:28,429 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-25 19:22:28,452 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-25 19:22:28,455 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-25 19:22:28,456 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-25 19:22:28,457 INFO L275 PluginConnector]: CDTParser initialized [2021-11-25 19:22:28,459 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d496c0d-021f-4d69-a250-822764345991/bin/utaipan-eEHZpOm5b7/../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i [2021-11-25 19:22:28,569 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d496c0d-021f-4d69-a250-822764345991/bin/utaipan-eEHZpOm5b7/data/5f12357be/0944ec8ddc00452685de90f8e29f5747/FLAGa3764110e [2021-11-25 19:22:29,633 INFO L306 CDTParser]: Found 1 translation units. [2021-11-25 19:22:29,635 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d496c0d-021f-4d69-a250-822764345991/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i [2021-11-25 19:22:29,709 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d496c0d-021f-4d69-a250-822764345991/bin/utaipan-eEHZpOm5b7/data/5f12357be/0944ec8ddc00452685de90f8e29f5747/FLAGa3764110e [2021-11-25 19:22:29,895 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d496c0d-021f-4d69-a250-822764345991/bin/utaipan-eEHZpOm5b7/data/5f12357be/0944ec8ddc00452685de90f8e29f5747 [2021-11-25 19:22:29,897 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-25 19:22:29,899 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-25 19:22:29,901 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-25 19:22:29,901 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-25 19:22:29,905 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-25 19:22:29,905 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 07:22:29" (1/1) ... [2021-11-25 19:22:29,907 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@48e424ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:22:29, skipping insertion in model container [2021-11-25 19:22:29,908 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 07:22:29" (1/1) ... [2021-11-25 19:22:29,916 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-25 19:22:30,144 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-25 19:22:36,623 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d496c0d-021f-4d69-a250-822764345991/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[580060,580073] [2021-11-25 19:22:36,626 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d496c0d-021f-4d69-a250-822764345991/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[580205,580218] [2021-11-25 19:22:36,627 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d496c0d-021f-4d69-a250-822764345991/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[580351,580364] [2021-11-25 19:22:36,627 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d496c0d-021f-4d69-a250-822764345991/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[580516,580529] [2021-11-25 19:22:36,628 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d496c0d-021f-4d69-a250-822764345991/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[580674,580687] [2021-11-25 19:22:36,628 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d496c0d-021f-4d69-a250-822764345991/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[580832,580845] [2021-11-25 19:22:36,629 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d496c0d-021f-4d69-a250-822764345991/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[580990,581003] [2021-11-25 19:22:36,629 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d496c0d-021f-4d69-a250-822764345991/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[581150,581163] [2021-11-25 19:22:36,630 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d496c0d-021f-4d69-a250-822764345991/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[581309,581322] [2021-11-25 19:22:36,630 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d496c0d-021f-4d69-a250-822764345991/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[581448,581461] [2021-11-25 19:22:36,631 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d496c0d-021f-4d69-a250-822764345991/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[581590,581603] [2021-11-25 19:22:36,631 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d496c0d-021f-4d69-a250-822764345991/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[581739,581752] [2021-11-25 19:22:36,632 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d496c0d-021f-4d69-a250-822764345991/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[581878,581891] [2021-11-25 19:22:36,632 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d496c0d-021f-4d69-a250-822764345991/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[582033,582046] [2021-11-25 19:22:36,633 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d496c0d-021f-4d69-a250-822764345991/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[582193,582206] [2021-11-25 19:22:36,633 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d496c0d-021f-4d69-a250-822764345991/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[582344,582357] [2021-11-25 19:22:36,634 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d496c0d-021f-4d69-a250-822764345991/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[582495,582508] [2021-11-25 19:22:36,634 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d496c0d-021f-4d69-a250-822764345991/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[582647,582660] [2021-11-25 19:22:36,635 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d496c0d-021f-4d69-a250-822764345991/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[582796,582809] [2021-11-25 19:22:36,635 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d496c0d-021f-4d69-a250-822764345991/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[582944,582957] [2021-11-25 19:22:36,636 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d496c0d-021f-4d69-a250-822764345991/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[583101,583114] [2021-11-25 19:22:36,636 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d496c0d-021f-4d69-a250-822764345991/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[583250,583263] [2021-11-25 19:22:36,637 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d496c0d-021f-4d69-a250-822764345991/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[583406,583419] [2021-11-25 19:22:36,637 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d496c0d-021f-4d69-a250-822764345991/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[583559,583572] [2021-11-25 19:22:36,638 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d496c0d-021f-4d69-a250-822764345991/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[583705,583718] [2021-11-25 19:22:36,638 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d496c0d-021f-4d69-a250-822764345991/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[583848,583861] [2021-11-25 19:22:36,639 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d496c0d-021f-4d69-a250-822764345991/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[584000,584013] [2021-11-25 19:22:36,639 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d496c0d-021f-4d69-a250-822764345991/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[584146,584159] [2021-11-25 19:22:36,640 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d496c0d-021f-4d69-a250-822764345991/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[584291,584304] [2021-11-25 19:22:36,640 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d496c0d-021f-4d69-a250-822764345991/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[584445,584458] [2021-11-25 19:22:36,641 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d496c0d-021f-4d69-a250-822764345991/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[584596,584609] [2021-11-25 19:22:36,641 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d496c0d-021f-4d69-a250-822764345991/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[584751,584764] [2021-11-25 19:22:36,642 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d496c0d-021f-4d69-a250-822764345991/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[584903,584916] [2021-11-25 19:22:36,642 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d496c0d-021f-4d69-a250-822764345991/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[585058,585071] [2021-11-25 19:22:36,642 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d496c0d-021f-4d69-a250-822764345991/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[585222,585235] [2021-11-25 19:22:36,643 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d496c0d-021f-4d69-a250-822764345991/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[585378,585391] [2021-11-25 19:22:36,643 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d496c0d-021f-4d69-a250-822764345991/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[585542,585555] [2021-11-25 19:22:36,644 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d496c0d-021f-4d69-a250-822764345991/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[585684,585697] [2021-11-25 19:22:36,644 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d496c0d-021f-4d69-a250-822764345991/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[585842,585855] [2021-11-25 19:22:36,645 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d496c0d-021f-4d69-a250-822764345991/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[586009,586022] [2021-11-25 19:22:36,645 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d496c0d-021f-4d69-a250-822764345991/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[586168,586181] [2021-11-25 19:22:36,646 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d496c0d-021f-4d69-a250-822764345991/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[586327,586340] [2021-11-25 19:22:36,646 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d496c0d-021f-4d69-a250-822764345991/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[586476,586489] [2021-11-25 19:22:36,647 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d496c0d-021f-4d69-a250-822764345991/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[586623,586636] [2021-11-25 19:22:36,647 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d496c0d-021f-4d69-a250-822764345991/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[586762,586775] [2021-11-25 19:22:36,648 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d496c0d-021f-4d69-a250-822764345991/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[586925,586938] [2021-11-25 19:22:36,648 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d496c0d-021f-4d69-a250-822764345991/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[587091,587104] [2021-11-25 19:22:36,649 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d496c0d-021f-4d69-a250-822764345991/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[587255,587268] [2021-11-25 19:22:36,649 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d496c0d-021f-4d69-a250-822764345991/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[587420,587433] [2021-11-25 19:22:36,650 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d496c0d-021f-4d69-a250-822764345991/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[587585,587598] [2021-11-25 19:22:36,650 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d496c0d-021f-4d69-a250-822764345991/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[587751,587764] [2021-11-25 19:22:36,651 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d496c0d-021f-4d69-a250-822764345991/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[587916,587929] [2021-11-25 19:22:36,651 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d496c0d-021f-4d69-a250-822764345991/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[588083,588096] [2021-11-25 19:22:36,652 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d496c0d-021f-4d69-a250-822764345991/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[588243,588256] [2021-11-25 19:22:36,652 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d496c0d-021f-4d69-a250-822764345991/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[588405,588418] [2021-11-25 19:22:36,653 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d496c0d-021f-4d69-a250-822764345991/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[588564,588577] [2021-11-25 19:22:36,653 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d496c0d-021f-4d69-a250-822764345991/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[588710,588723] [2021-11-25 19:22:36,654 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d496c0d-021f-4d69-a250-822764345991/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[588853,588866] [2021-11-25 19:22:36,654 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d496c0d-021f-4d69-a250-822764345991/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[588997,589010] [2021-11-25 19:22:36,654 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d496c0d-021f-4d69-a250-822764345991/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[589140,589153] [2021-11-25 19:22:36,655 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d496c0d-021f-4d69-a250-822764345991/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[589284,589297] [2021-11-25 19:22:36,655 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d496c0d-021f-4d69-a250-822764345991/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[589425,589438] [2021-11-25 19:22:36,656 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d496c0d-021f-4d69-a250-822764345991/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[589563,589576] [2021-11-25 19:22:36,656 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d496c0d-021f-4d69-a250-822764345991/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[589721,589734] [2021-11-25 19:22:36,657 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d496c0d-021f-4d69-a250-822764345991/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[589880,589893] [2021-11-25 19:22:36,657 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d496c0d-021f-4d69-a250-822764345991/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[590036,590049] [2021-11-25 19:22:36,657 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d496c0d-021f-4d69-a250-822764345991/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[590185,590198] [2021-11-25 19:22:36,658 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d496c0d-021f-4d69-a250-822764345991/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[590337,590350] [2021-11-25 19:22:36,658 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d496c0d-021f-4d69-a250-822764345991/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[590488,590501] [2021-11-25 19:22:36,659 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d496c0d-021f-4d69-a250-822764345991/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[590637,590650] [2021-11-25 19:22:36,659 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d496c0d-021f-4d69-a250-822764345991/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[590789,590802] [2021-11-25 19:22:36,660 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d496c0d-021f-4d69-a250-822764345991/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[590937,590950] [2021-11-25 19:22:36,660 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d496c0d-021f-4d69-a250-822764345991/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[591090,591103] [2021-11-25 19:22:36,661 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d496c0d-021f-4d69-a250-822764345991/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[591241,591254] [2021-11-25 19:22:36,661 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d496c0d-021f-4d69-a250-822764345991/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[591391,591404] [2021-11-25 19:22:36,662 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d496c0d-021f-4d69-a250-822764345991/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[591538,591551] [2021-11-25 19:22:36,662 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d496c0d-021f-4d69-a250-822764345991/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[591689,591702] [2021-11-25 19:22:36,662 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d496c0d-021f-4d69-a250-822764345991/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[591840,591853] [2021-11-25 19:22:36,663 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d496c0d-021f-4d69-a250-822764345991/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[591988,592001] [2021-11-25 19:22:36,663 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d496c0d-021f-4d69-a250-822764345991/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[592154,592167] [2021-11-25 19:22:36,664 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d496c0d-021f-4d69-a250-822764345991/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[592323,592336] [2021-11-25 19:22:36,664 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d496c0d-021f-4d69-a250-822764345991/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[592490,592503] [2021-11-25 19:22:36,665 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d496c0d-021f-4d69-a250-822764345991/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[592658,592671] [2021-11-25 19:22:36,665 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d496c0d-021f-4d69-a250-822764345991/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[592808,592821] [2021-11-25 19:22:36,666 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d496c0d-021f-4d69-a250-822764345991/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[592955,592968] [2021-11-25 19:22:36,666 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d496c0d-021f-4d69-a250-822764345991/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[593116,593129] [2021-11-25 19:22:36,666 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d496c0d-021f-4d69-a250-822764345991/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[593286,593299] [2021-11-25 19:22:36,667 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d496c0d-021f-4d69-a250-822764345991/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[593448,593461] [2021-11-25 19:22:36,686 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 19:22:36,711 INFO L203 MainTranslator]: Completed pre-run [2021-11-25 19:22:37,331 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d496c0d-021f-4d69-a250-822764345991/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[580060,580073] [2021-11-25 19:22:37,332 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d496c0d-021f-4d69-a250-822764345991/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[580205,580218] [2021-11-25 19:22:37,337 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d496c0d-021f-4d69-a250-822764345991/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[580351,580364] [2021-11-25 19:22:37,337 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d496c0d-021f-4d69-a250-822764345991/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[580516,580529] [2021-11-25 19:22:37,338 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d496c0d-021f-4d69-a250-822764345991/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[580674,580687] [2021-11-25 19:22:37,338 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d496c0d-021f-4d69-a250-822764345991/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[580832,580845] [2021-11-25 19:22:37,339 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d496c0d-021f-4d69-a250-822764345991/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[580990,581003] [2021-11-25 19:22:37,339 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d496c0d-021f-4d69-a250-822764345991/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[581150,581163] [2021-11-25 19:22:37,343 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d496c0d-021f-4d69-a250-822764345991/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[581309,581322] [2021-11-25 19:22:37,344 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d496c0d-021f-4d69-a250-822764345991/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[581448,581461] [2021-11-25 19:22:37,345 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d496c0d-021f-4d69-a250-822764345991/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[581590,581603] [2021-11-25 19:22:37,345 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d496c0d-021f-4d69-a250-822764345991/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[581739,581752] [2021-11-25 19:22:37,346 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d496c0d-021f-4d69-a250-822764345991/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[581878,581891] [2021-11-25 19:22:37,347 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d496c0d-021f-4d69-a250-822764345991/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[582033,582046] [2021-11-25 19:22:37,347 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d496c0d-021f-4d69-a250-822764345991/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[582193,582206] [2021-11-25 19:22:37,348 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d496c0d-021f-4d69-a250-822764345991/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[582344,582357] [2021-11-25 19:22:37,348 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d496c0d-021f-4d69-a250-822764345991/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[582495,582508] [2021-11-25 19:22:37,348 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d496c0d-021f-4d69-a250-822764345991/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[582647,582660] [2021-11-25 19:22:37,349 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d496c0d-021f-4d69-a250-822764345991/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[582796,582809] [2021-11-25 19:22:37,349 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d496c0d-021f-4d69-a250-822764345991/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[582944,582957] [2021-11-25 19:22:37,350 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d496c0d-021f-4d69-a250-822764345991/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[583101,583114] [2021-11-25 19:22:37,350 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d496c0d-021f-4d69-a250-822764345991/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[583250,583263] [2021-11-25 19:22:37,350 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d496c0d-021f-4d69-a250-822764345991/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[583406,583419] [2021-11-25 19:22:37,351 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d496c0d-021f-4d69-a250-822764345991/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[583559,583572] [2021-11-25 19:22:37,352 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d496c0d-021f-4d69-a250-822764345991/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[583705,583718] [2021-11-25 19:22:37,352 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d496c0d-021f-4d69-a250-822764345991/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[583848,583861] [2021-11-25 19:22:37,353 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d496c0d-021f-4d69-a250-822764345991/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[584000,584013] [2021-11-25 19:22:37,354 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d496c0d-021f-4d69-a250-822764345991/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[584146,584159] [2021-11-25 19:22:37,354 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d496c0d-021f-4d69-a250-822764345991/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[584291,584304] [2021-11-25 19:22:37,354 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d496c0d-021f-4d69-a250-822764345991/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[584445,584458] [2021-11-25 19:22:37,355 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d496c0d-021f-4d69-a250-822764345991/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[584596,584609] [2021-11-25 19:22:37,355 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d496c0d-021f-4d69-a250-822764345991/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[584751,584764] [2021-11-25 19:22:37,356 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d496c0d-021f-4d69-a250-822764345991/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[584903,584916] [2021-11-25 19:22:37,357 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d496c0d-021f-4d69-a250-822764345991/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[585058,585071] [2021-11-25 19:22:37,358 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d496c0d-021f-4d69-a250-822764345991/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[585222,585235] [2021-11-25 19:22:37,358 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d496c0d-021f-4d69-a250-822764345991/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[585378,585391] [2021-11-25 19:22:37,358 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d496c0d-021f-4d69-a250-822764345991/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[585542,585555] [2021-11-25 19:22:37,359 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d496c0d-021f-4d69-a250-822764345991/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[585684,585697] [2021-11-25 19:22:37,359 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d496c0d-021f-4d69-a250-822764345991/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[585842,585855] [2021-11-25 19:22:37,359 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d496c0d-021f-4d69-a250-822764345991/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[586009,586022] [2021-11-25 19:22:37,361 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d496c0d-021f-4d69-a250-822764345991/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[586168,586181] [2021-11-25 19:22:37,361 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d496c0d-021f-4d69-a250-822764345991/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[586327,586340] [2021-11-25 19:22:37,362 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d496c0d-021f-4d69-a250-822764345991/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[586476,586489] [2021-11-25 19:22:37,362 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d496c0d-021f-4d69-a250-822764345991/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[586623,586636] [2021-11-25 19:22:37,363 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d496c0d-021f-4d69-a250-822764345991/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[586762,586775] [2021-11-25 19:22:37,363 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d496c0d-021f-4d69-a250-822764345991/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[586925,586938] [2021-11-25 19:22:37,363 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d496c0d-021f-4d69-a250-822764345991/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[587091,587104] [2021-11-25 19:22:37,364 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d496c0d-021f-4d69-a250-822764345991/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[587255,587268] [2021-11-25 19:22:37,364 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d496c0d-021f-4d69-a250-822764345991/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[587420,587433] [2021-11-25 19:22:37,364 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d496c0d-021f-4d69-a250-822764345991/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[587585,587598] [2021-11-25 19:22:37,365 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d496c0d-021f-4d69-a250-822764345991/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[587751,587764] [2021-11-25 19:22:37,365 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d496c0d-021f-4d69-a250-822764345991/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[587916,587929] [2021-11-25 19:22:37,366 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d496c0d-021f-4d69-a250-822764345991/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[588083,588096] [2021-11-25 19:22:37,366 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d496c0d-021f-4d69-a250-822764345991/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[588243,588256] [2021-11-25 19:22:37,367 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d496c0d-021f-4d69-a250-822764345991/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[588405,588418] [2021-11-25 19:22:37,368 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d496c0d-021f-4d69-a250-822764345991/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[588564,588577] [2021-11-25 19:22:37,371 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d496c0d-021f-4d69-a250-822764345991/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[588710,588723] [2021-11-25 19:22:37,372 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d496c0d-021f-4d69-a250-822764345991/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[588853,588866] [2021-11-25 19:22:37,372 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d496c0d-021f-4d69-a250-822764345991/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[588997,589010] [2021-11-25 19:22:37,373 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d496c0d-021f-4d69-a250-822764345991/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[589140,589153] [2021-11-25 19:22:37,373 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d496c0d-021f-4d69-a250-822764345991/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[589284,589297] [2021-11-25 19:22:37,374 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d496c0d-021f-4d69-a250-822764345991/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[589425,589438] [2021-11-25 19:22:37,375 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d496c0d-021f-4d69-a250-822764345991/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[589563,589576] [2021-11-25 19:22:37,375 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d496c0d-021f-4d69-a250-822764345991/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[589721,589734] [2021-11-25 19:22:37,375 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d496c0d-021f-4d69-a250-822764345991/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[589880,589893] [2021-11-25 19:22:37,385 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d496c0d-021f-4d69-a250-822764345991/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[590036,590049] [2021-11-25 19:22:37,386 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d496c0d-021f-4d69-a250-822764345991/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[590185,590198] [2021-11-25 19:22:37,387 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d496c0d-021f-4d69-a250-822764345991/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[590337,590350] [2021-11-25 19:22:37,388 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d496c0d-021f-4d69-a250-822764345991/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[590488,590501] [2021-11-25 19:22:37,388 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d496c0d-021f-4d69-a250-822764345991/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[590637,590650] [2021-11-25 19:22:37,389 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d496c0d-021f-4d69-a250-822764345991/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[590789,590802] [2021-11-25 19:22:37,389 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d496c0d-021f-4d69-a250-822764345991/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[590937,590950] [2021-11-25 19:22:37,389 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d496c0d-021f-4d69-a250-822764345991/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[591090,591103] [2021-11-25 19:22:37,390 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d496c0d-021f-4d69-a250-822764345991/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[591241,591254] [2021-11-25 19:22:37,390 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d496c0d-021f-4d69-a250-822764345991/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[591391,591404] [2021-11-25 19:22:37,390 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d496c0d-021f-4d69-a250-822764345991/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[591538,591551] [2021-11-25 19:22:37,391 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d496c0d-021f-4d69-a250-822764345991/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[591689,591702] [2021-11-25 19:22:37,391 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d496c0d-021f-4d69-a250-822764345991/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[591840,591853] [2021-11-25 19:22:37,393 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d496c0d-021f-4d69-a250-822764345991/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[591988,592001] [2021-11-25 19:22:37,393 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d496c0d-021f-4d69-a250-822764345991/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[592154,592167] [2021-11-25 19:22:37,394 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d496c0d-021f-4d69-a250-822764345991/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[592323,592336] [2021-11-25 19:22:37,395 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d496c0d-021f-4d69-a250-822764345991/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[592490,592503] [2021-11-25 19:22:37,396 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d496c0d-021f-4d69-a250-822764345991/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[592658,592671] [2021-11-25 19:22:37,397 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d496c0d-021f-4d69-a250-822764345991/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[592808,592821] [2021-11-25 19:22:37,397 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d496c0d-021f-4d69-a250-822764345991/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[592955,592968] [2021-11-25 19:22:37,397 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d496c0d-021f-4d69-a250-822764345991/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[593116,593129] [2021-11-25 19:22:37,398 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d496c0d-021f-4d69-a250-822764345991/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[593286,593299] [2021-11-25 19:22:37,398 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d496c0d-021f-4d69-a250-822764345991/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--skd.ko.cil.i[593448,593461] [2021-11-25 19:22:37,404 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 19:22:37,782 INFO L208 MainTranslator]: Completed translation [2021-11-25 19:22:37,782 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:22:37 WrapperNode [2021-11-25 19:22:37,783 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-25 19:22:37,784 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-25 19:22:37,784 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-25 19:22:37,784 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-25 19:22:37,791 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:22:37" (1/1) ... [2021-11-25 19:22:38,030 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:22:37" (1/1) ... [2021-11-25 19:22:38,669 INFO L137 Inliner]: procedures = 758, calls = 7229, calls flagged for inlining = 371, calls inlined = 290, statements flattened = 13761 [2021-11-25 19:22:38,670 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-25 19:22:38,671 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-25 19:22:38,671 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-25 19:22:38,671 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-25 19:22:38,680 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:22:37" (1/1) ... [2021-11-25 19:22:38,694 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:22:37" (1/1) ... [2021-11-25 19:22:38,803 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:22:37" (1/1) ... [2021-11-25 19:22:38,821 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:22:37" (1/1) ... [2021-11-25 19:22:39,351 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:22:37" (1/1) ... [2021-11-25 19:22:39,438 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:22:37" (1/1) ... [2021-11-25 19:22:39,482 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:22:37" (1/1) ... [2021-11-25 19:22:39,543 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-25 19:22:39,544 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-25 19:22:39,544 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-25 19:22:39,545 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-25 19:22:39,546 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:22:37" (1/1) ... [2021-11-25 19:22:39,553 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 19:22:39,565 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d496c0d-021f-4d69-a250-822764345991/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 19:22:39,583 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d496c0d-021f-4d69-a250-822764345991/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-25 19:22:39,607 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d496c0d-021f-4d69-a250-822764345991/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-25 19:22:39,633 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_pcie_error_reporting [2021-11-25 19:22:39,633 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_pcie_error_reporting [2021-11-25 19:22:39,633 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_98 [2021-11-25 19:22:39,633 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_98 [2021-11-25 19:22:39,634 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_coherent_check_final_state [2021-11-25 19:22:39,634 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_coherent_check_final_state [2021-11-25 19:22:39,634 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2021-11-25 19:22:39,634 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2021-11-25 19:22:39,635 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2021-11-25 19:22:39,635 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-25 19:22:39,635 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-25 19:22:39,637 INFO L130 BoogieDeclarations]: Found specification of procedure skd_quiesce_dev [2021-11-25 19:22:39,637 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_quiesce_dev [2021-11-25 19:22:39,637 INFO L130 BoogieDeclarations]: Found specification of procedure lowmem_page_address [2021-11-25 19:22:39,637 INFO L138 BoogieDeclarations]: Found implementation of procedure lowmem_page_address [2021-11-25 19:22:39,637 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-25 19:22:39,637 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-25 19:22:39,638 INFO L130 BoogieDeclarations]: Found specification of procedure skd_cons_sg_list [2021-11-25 19:22:39,638 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_cons_sg_list [2021-11-25 19:22:39,638 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_word [2021-11-25 19:22:39,638 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_word [2021-11-25 19:22:39,638 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_mmc_sdio_func_check_final_state [2021-11-25 19:22:39,638 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_mmc_sdio_func_check_final_state [2021-11-25 19:22:39,638 INFO L130 BoogieDeclarations]: Found specification of procedure __might_sleep [2021-11-25 19:22:39,639 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_sleep [2021-11-25 19:22:39,639 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-11-25 19:22:39,639 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-11-25 19:22:39,639 INFO L130 BoogieDeclarations]: Found specification of procedure __clear_bit [2021-11-25 19:22:39,639 INFO L138 BoogieDeclarations]: Found implementation of procedure __clear_bit [2021-11-25 19:22:39,639 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-11-25 19:22:39,639 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-11-25 19:22:39,640 INFO L130 BoogieDeclarations]: Found specification of procedure queue_flag_set_unlocked [2021-11-25 19:22:39,640 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_flag_set_unlocked [2021-11-25 19:22:39,640 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_pcie_error_reporting [2021-11-25 19:22:39,640 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_pcie_error_reporting [2021-11-25 19:22:39,640 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_arch_io_check_final_state [2021-11-25 19:22:39,640 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_arch_io_check_final_state [2021-11-25 19:22:39,640 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_module_check_final_state [2021-11-25 19:22:39,641 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_module_check_final_state [2021-11-25 19:22:39,641 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2021-11-25 19:22:39,641 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2021-11-25 19:22:39,641 INFO L130 BoogieDeclarations]: Found specification of procedure skd_pci_remove [2021-11-25 19:22:39,641 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_pci_remove [2021-11-25 19:22:39,641 INFO L130 BoogieDeclarations]: Found specification of procedure skd_isr_fwstate [2021-11-25 19:22:39,641 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_isr_fwstate [2021-11-25 19:22:39,642 INFO L130 BoogieDeclarations]: Found specification of procedure skd_drive_disappeared [2021-11-25 19:22:39,642 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_drive_disappeared [2021-11-25 19:22:39,642 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_pages [2021-11-25 19:22:39,642 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_pages [2021-11-25 19:22:39,642 INFO L130 BoogieDeclarations]: Found specification of procedure skd_release_skreq [2021-11-25 19:22:39,643 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_release_skreq [2021-11-25 19:22:39,643 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2021-11-25 19:22:39,643 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2021-11-25 19:22:39,643 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-11-25 19:22:39,643 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-11-25 19:22:39,643 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-25 19:22:39,643 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-25 19:22:39,644 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_queue_check_final_state [2021-11-25 19:22:39,644 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_queue_check_final_state [2021-11-25 19:22:39,644 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-25 19:22:39,644 INFO L130 BoogieDeclarations]: Found specification of procedure __chk_range_not_ok [2021-11-25 19:22:39,644 INFO L138 BoogieDeclarations]: Found implementation of procedure __chk_range_not_ok [2021-11-25 19:22:39,644 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_request_check_final_state [2021-11-25 19:22:39,644 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_request_check_final_state [2021-11-25 19:22:39,645 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_110 [2021-11-25 19:22:39,649 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_110 [2021-11-25 19:22:39,649 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_consistent_dma_mask [2021-11-25 19:22:39,649 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_consistent_dma_mask [2021-11-25 19:22:39,650 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-25 19:22:39,650 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2021-11-25 19:22:39,650 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2021-11-25 19:22:39,650 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-11-25 19:22:39,650 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-11-25 19:22:39,650 INFO L130 BoogieDeclarations]: Found specification of procedure sg_page [2021-11-25 19:22:39,652 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_page [2021-11-25 19:22:39,652 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-25 19:22:39,652 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_in_interrupt_context [2021-11-25 19:22:39,652 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_in_interrupt_context [2021-11-25 19:22:39,653 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-11-25 19:22:39,653 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-11-25 19:22:39,653 INFO L130 BoogieDeclarations]: Found specification of procedure pci_zalloc_consistent [2021-11-25 19:22:39,653 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_zalloc_consistent [2021-11-25 19:22:39,653 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_bh_check_final_state [2021-11-25 19:22:39,653 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_bh_check_final_state [2021-11-25 19:22:39,653 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-25 19:22:39,653 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_genhd_check_final_state [2021-11-25 19:22:39,654 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_genhd_check_final_state [2021-11-25 19:22:39,654 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_after_alloc [2021-11-25 19:22:39,654 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_after_alloc [2021-11-25 19:22:39,654 INFO L130 BoogieDeclarations]: Found specification of procedure __copy_to_user [2021-11-25 19:22:39,654 INFO L138 BoogieDeclarations]: Found implementation of procedure __copy_to_user [2021-11-25 19:22:39,654 INFO L130 BoogieDeclarations]: Found specification of procedure skd_log_check_status [2021-11-25 19:22:39,654 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_log_check_status [2021-11-25 19:22:39,655 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-25 19:22:39,655 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-25 19:22:39,655 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_register_reset_error_counter [2021-11-25 19:22:39,655 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_register_reset_error_counter [2021-11-25 19:22:39,655 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2021-11-25 19:22:39,655 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2021-11-25 19:22:39,655 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-11-25 19:22:39,656 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-11-25 19:22:39,656 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2021-11-25 19:22:39,656 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2021-11-25 19:22:39,656 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_dma_mask [2021-11-25 19:22:39,656 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_dma_mask [2021-11-25 19:22:39,656 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_to_wait_event [2021-11-25 19:22:39,656 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_to_wait_event [2021-11-25 19:22:39,656 INFO L130 BoogieDeclarations]: Found specification of procedure blk_start_queue [2021-11-25 19:22:39,657 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_start_queue [2021-11-25 19:22:39,657 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2021-11-25 19:22:39,657 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2021-11-25 19:22:39,657 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_lib_idr_check_final_state [2021-11-25 19:22:39,657 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_lib_idr_check_final_state [2021-11-25 19:22:39,657 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2021-11-25 19:22:39,657 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2021-11-25 19:22:39,658 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_drvdata [2021-11-25 19:22:39,658 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_drvdata [2021-11-25 19:22:39,658 INFO L130 BoogieDeclarations]: Found specification of procedure pci_request_regions [2021-11-25 19:22:39,659 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_request_regions [2021-11-25 19:22:39,659 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_srcu_check_final_state [2021-11-25 19:22:39,659 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_srcu_check_final_state [2021-11-25 19:22:39,660 INFO L130 BoogieDeclarations]: Found specification of procedure skd_isr [2021-11-25 19:22:39,660 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_isr [2021-11-25 19:22:39,660 INFO L130 BoogieDeclarations]: Found specification of procedure skd_release_irq [2021-11-25 19:22:39,660 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_release_irq [2021-11-25 19:22:39,660 INFO L130 BoogieDeclarations]: Found specification of procedure skd_free_sg_list [2021-11-25 19:22:39,660 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_free_sg_list [2021-11-25 19:22:39,660 INFO L130 BoogieDeclarations]: Found specification of procedure skd_destruct [2021-11-25 19:22:39,660 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_destruct [2021-11-25 19:22:39,661 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-25 19:22:39,661 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer [2021-11-25 19:22:39,661 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer [2021-11-25 19:22:39,661 INFO L130 BoogieDeclarations]: Found specification of procedure blk_start_request [2021-11-25 19:22:39,661 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_start_request [2021-11-25 19:22:39,661 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-25 19:22:39,661 INFO L130 BoogieDeclarations]: Found specification of procedure skd_send_special_fitmsg [2021-11-25 19:22:39,662 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_send_special_fitmsg [2021-11-25 19:22:39,662 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-11-25 19:22:39,662 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-11-25 19:22:39,662 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-25 19:22:39,662 INFO L130 BoogieDeclarations]: Found specification of procedure __blk_end_request_all [2021-11-25 19:22:39,662 INFO L138 BoogieDeclarations]: Found implementation of procedure __blk_end_request_all [2021-11-25 19:22:39,662 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-25 19:22:39,662 INFO L130 BoogieDeclarations]: Found specification of procedure skd_pci_resume [2021-11-25 19:22:39,663 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_pci_resume [2021-11-25 19:22:39,663 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_spinlock_spin_unlock_lock_of_skd_device [2021-11-25 19:22:39,663 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_spinlock_spin_unlock_lock_of_skd_device [2021-11-25 19:22:39,663 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2021-11-25 19:22:39,663 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2021-11-25 19:22:39,663 INFO L130 BoogieDeclarations]: Found specification of procedure skd_release_msix [2021-11-25 19:22:39,663 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_release_msix [2021-11-25 19:22:39,664 INFO L130 BoogieDeclarations]: Found specification of procedure skd_end_request [2021-11-25 19:22:39,664 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_end_request [2021-11-25 19:22:39,664 INFO L130 BoogieDeclarations]: Found specification of procedure skd_recover_requests [2021-11-25 19:22:39,664 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_recover_requests [2021-11-25 19:22:39,664 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-11-25 19:22:39,664 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-11-25 19:22:39,664 INFO L130 BoogieDeclarations]: Found specification of procedure __copy_from_user [2021-11-25 19:22:39,664 INFO L138 BoogieDeclarations]: Found implementation of procedure __copy_from_user [2021-11-25 19:22:39,665 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_register_reset_error_counter [2021-11-25 19:22:39,665 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_register_reset_error_counter [2021-11-25 19:22:39,665 INFO L130 BoogieDeclarations]: Found specification of procedure blk_peek_request [2021-11-25 19:22:39,665 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_peek_request [2021-11-25 19:22:39,665 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2021-11-25 19:22:39,665 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2021-11-25 19:22:39,665 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2021-11-25 19:22:39,666 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2021-11-25 19:22:39,666 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_timeout [2021-11-25 19:22:39,666 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_timeout [2021-11-25 19:22:39,666 INFO L130 BoogieDeclarations]: Found specification of procedure skd_isr_msg_from_dev [2021-11-25 19:22:39,666 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_isr_msg_from_dev [2021-11-25 19:22:39,666 INFO L130 BoogieDeclarations]: Found specification of procedure finish_wait [2021-11-25 19:22:39,666 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_wait [2021-11-25 19:22:39,666 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-25 19:22:39,667 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-25 19:22:39,667 INFO L130 BoogieDeclarations]: Found specification of procedure writeq [2021-11-25 19:22:39,667 INFO L138 BoogieDeclarations]: Found implementation of procedure writeq [2021-11-25 19:22:39,667 INFO L130 BoogieDeclarations]: Found specification of procedure devm_request_irq [2021-11-25 19:22:39,667 INFO L138 BoogieDeclarations]: Found implementation of procedure devm_request_irq [2021-11-25 19:22:39,667 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2021-11-25 19:22:39,667 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2021-11-25 19:22:39,667 INFO L130 BoogieDeclarations]: Found specification of procedure blk_stop_queue [2021-11-25 19:22:39,668 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_stop_queue [2021-11-25 19:22:39,668 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-25 19:22:39,668 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-25 19:22:39,668 INFO L130 BoogieDeclarations]: Found specification of procedure skd_skdev_state_to_str [2021-11-25 19:22:39,668 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_skdev_state_to_str [2021-11-25 19:22:39,668 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-25 19:22:39,668 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-25 19:22:39,669 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-11-25 19:22:39,669 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-11-25 19:22:39,669 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2021-11-25 19:22:39,669 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2021-11-25 19:22:39,669 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_spinlock_spin_lock_lock_of_skd_device [2021-11-25 19:22:39,669 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_spinlock_spin_lock_lock_of_skd_device [2021-11-25 19:22:39,669 INFO L130 BoogieDeclarations]: Found specification of procedure skd_start_device [2021-11-25 19:22:39,669 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_start_device [2021-11-25 19:22:39,670 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2021-11-25 19:22:39,670 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2021-11-25 19:22:39,670 INFO L130 BoogieDeclarations]: Found specification of procedure skd_postop_sg_list [2021-11-25 19:22:39,670 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_postop_sg_list [2021-11-25 19:22:39,670 INFO L130 BoogieDeclarations]: Found specification of procedure skd_request_fn [2021-11-25 19:22:39,670 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_request_fn [2021-11-25 19:22:39,670 INFO L130 BoogieDeclarations]: Found specification of procedure put_unaligned_be16 [2021-11-25 19:22:39,671 INFO L138 BoogieDeclarations]: Found implementation of procedure put_unaligned_be16 [2021-11-25 19:22:39,671 INFO L130 BoogieDeclarations]: Found specification of procedure skd_send_fitmsg [2021-11-25 19:22:39,671 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_send_fitmsg [2021-11-25 19:22:39,671 INFO L130 BoogieDeclarations]: Found specification of procedure set_capacity [2021-11-25 19:22:39,671 INFO L138 BoogieDeclarations]: Found implementation of procedure set_capacity [2021-11-25 19:22:39,671 INFO L130 BoogieDeclarations]: Found specification of procedure blk_rq_sectors [2021-11-25 19:22:39,671 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_rq_sectors [2021-11-25 19:22:39,671 INFO L130 BoogieDeclarations]: Found specification of procedure skd_log_skreq [2021-11-25 19:22:39,672 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_log_skreq [2021-11-25 19:22:39,672 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-25 19:22:39,672 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-25 19:22:39,672 INFO L130 BoogieDeclarations]: Found specification of procedure skd_disable_interrupts [2021-11-25 19:22:39,672 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_disable_interrupts [2021-11-25 19:22:39,672 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_arch_io_io_mem_unmap [2021-11-25 19:22:39,672 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_arch_io_io_mem_unmap [2021-11-25 19:22:39,672 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2021-11-25 19:22:39,673 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2021-11-25 19:22:39,673 INFO L130 BoogieDeclarations]: Found specification of procedure skd_drive_fault [2021-11-25 19:22:39,673 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_drive_fault [2021-11-25 19:22:39,673 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_sock_check_final_state [2021-11-25 19:22:39,673 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_sock_check_final_state [2021-11-25 19:22:39,673 INFO L130 BoogieDeclarations]: Found specification of procedure skd_isr_completion_posted [2021-11-25 19:22:39,673 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_isr_completion_posted [2021-11-25 19:22:39,674 INFO L130 BoogieDeclarations]: Found specification of procedure blk_rq_pos [2021-11-25 19:22:39,674 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_rq_pos [2021-11-25 19:22:39,674 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_gadget_check_final_state [2021-11-25 19:22:39,674 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_gadget_check_final_state [2021-11-25 19:22:39,674 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-25 19:22:39,674 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-11-25 19:22:39,674 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-11-25 19:22:39,674 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_fs_sysfs_check_final_state [2021-11-25 19:22:39,675 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_fs_sysfs_check_final_state [2021-11-25 19:22:39,675 INFO L130 BoogieDeclarations]: Found specification of procedure skd_sg_io_copy_buffer [2021-11-25 19:22:39,675 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_sg_io_copy_buffer [2021-11-25 19:22:39,675 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_master [2021-11-25 19:22:39,675 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_master [2021-11-25 19:22:39,675 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-25 19:22:39,675 INFO L130 BoogieDeclarations]: Found specification of procedure skd_reg_write64 [2021-11-25 19:22:39,675 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_reg_write64 [2021-11-25 19:22:39,676 INFO L130 BoogieDeclarations]: Found specification of procedure ioremap [2021-11-25 19:22:39,676 INFO L138 BoogieDeclarations]: Found implementation of procedure ioremap [2021-11-25 19:22:39,676 INFO L130 BoogieDeclarations]: Found specification of procedure __free_pages [2021-11-25 19:22:39,676 INFO L138 BoogieDeclarations]: Found implementation of procedure __free_pages [2021-11-25 19:22:39,676 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-25 19:22:39,676 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2021-11-25 19:22:39,676 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2021-11-25 19:22:39,676 INFO L130 BoogieDeclarations]: Found specification of procedure strcat [2021-11-25 19:22:39,677 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2021-11-25 19:22:39,677 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2021-11-25 19:22:39,677 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2021-11-25 19:22:39,677 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2021-11-25 19:22:39,677 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_rtnetlink_check_final_state [2021-11-25 19:22:39,677 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_rtnetlink_check_final_state [2021-11-25 19:22:39,677 INFO L130 BoogieDeclarations]: Found specification of procedure skd_soft_reset [2021-11-25 19:22:39,678 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_soft_reset [2021-11-25 19:22:39,678 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-11-25 19:22:39,678 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-11-25 19:22:39,678 INFO L130 BoogieDeclarations]: Found specification of procedure skd_start_timer [2021-11-25 19:22:39,678 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_start_timer [2021-11-25 19:22:39,678 INFO L130 BoogieDeclarations]: Found specification of procedure skd_reg_write32 [2021-11-25 19:22:39,678 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_reg_write32 [2021-11-25 19:22:39,678 INFO L130 BoogieDeclarations]: Found specification of procedure pci_find_capability [2021-11-25 19:22:39,679 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_find_capability [2021-11-25 19:22:39,679 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-11-25 19:22:39,679 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-11-25 19:22:39,679 INFO L130 BoogieDeclarations]: Found specification of procedure blk_requeue_request [2021-11-25 19:22:39,679 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_requeue_request [2021-11-25 19:22:39,679 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_check_final_state [2021-11-25 19:22:39,679 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_check_final_state [2021-11-25 19:22:39,679 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_urb_check_final_state [2021-11-25 19:22:39,680 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_urb_check_final_state [2021-11-25 19:22:39,680 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_linux_kernel_locking_spinlock_spin_lock [2021-11-25 19:22:39,680 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_linux_kernel_locking_spinlock_spin_lock [2021-11-25 19:22:39,680 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_devm_free_irq [2021-11-25 19:22:39,680 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_devm_free_irq [2021-11-25 19:22:39,680 INFO L130 BoogieDeclarations]: Found specification of procedure skd_reg_read32 [2021-11-25 19:22:39,680 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_reg_read32 [2021-11-25 19:22:39,680 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_rwlock_check_final_state [2021-11-25 19:22:39,681 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_rwlock_check_final_state [2021-11-25 19:22:39,681 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-11-25 19:22:39,681 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-11-25 19:22:39,681 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-25 19:22:39,681 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_fs_char_dev_check_final_state [2021-11-25 19:22:39,681 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_fs_char_dev_check_final_state [2021-11-25 19:22:39,681 INFO L130 BoogieDeclarations]: Found specification of procedure skd_send_internal_skspcl [2021-11-25 19:22:39,682 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_send_internal_skspcl [2021-11-25 19:22:39,682 INFO L130 BoogieDeclarations]: Found specification of procedure skd_release_special [2021-11-25 19:22:39,682 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_release_special [2021-11-25 19:22:39,682 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-25 19:22:39,682 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-25 19:22:39,682 INFO L130 BoogieDeclarations]: Found specification of procedure copy_user_generic [2021-11-25 19:22:39,682 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_user_generic [2021-11-25 19:22:39,682 INFO L130 BoogieDeclarations]: Found specification of procedure skd_drive_state_to_str [2021-11-25 19:22:39,683 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_drive_state_to_str [2021-11-25 19:22:39,683 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_drivers_base_class_check_final_state [2021-11-25 19:22:39,683 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_drivers_base_class_check_final_state [2021-11-25 19:22:39,683 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2021-11-25 19:22:39,683 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2021-11-25 19:22:39,683 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device [2021-11-25 19:22:39,683 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device [2021-11-25 19:22:39,684 INFO L130 BoogieDeclarations]: Found specification of procedure current_thread_info [2021-11-25 19:22:39,684 INFO L138 BoogieDeclarations]: Found implementation of procedure current_thread_info [2021-11-25 19:22:39,684 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab64 [2021-11-25 19:22:39,684 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab64 [2021-11-25 19:22:39,684 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2021-11-25 19:22:39,684 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2021-11-25 19:22:39,684 INFO L130 BoogieDeclarations]: Found specification of procedure skd_name [2021-11-25 19:22:39,684 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_name [2021-11-25 19:22:39,685 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-11-25 19:22:39,685 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-11-25 19:22:39,685 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2021-11-25 19:22:39,685 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2021-11-25 19:22:39,685 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_sched_check_final_state [2021-11-25 19:22:39,685 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_sched_check_final_state [2021-11-25 19:22:39,685 INFO L130 BoogieDeclarations]: Found specification of procedure init_timer_key [2021-11-25 19:22:39,686 INFO L138 BoogieDeclarations]: Found implementation of procedure init_timer_key [2021-11-25 19:22:39,686 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2021-11-25 19:22:39,686 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2021-11-25 19:22:39,686 INFO L130 BoogieDeclarations]: Found specification of procedure devm_free_irq [2021-11-25 19:22:39,686 INFO L138 BoogieDeclarations]: Found implementation of procedure devm_free_irq [2021-11-25 19:22:39,686 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2021-11-25 19:22:39,686 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2021-11-25 19:22:39,686 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_msi [2021-11-25 19:22:39,687 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_msi [2021-11-25 19:22:39,687 INFO L130 BoogieDeclarations]: Found specification of procedure sg_virt [2021-11-25 19:22:39,687 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_virt [2021-11-25 19:22:39,687 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2021-11-25 19:22:39,687 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2021-11-25 19:22:39,687 INFO L130 BoogieDeclarations]: Found specification of procedure skd_pci_shutdown [2021-11-25 19:22:39,687 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_pci_shutdown [2021-11-25 19:22:39,687 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-25 19:22:39,688 INFO L130 BoogieDeclarations]: Found specification of procedure skd_stop_device [2021-11-25 19:22:39,688 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_stop_device [2021-11-25 19:22:39,688 INFO L130 BoogieDeclarations]: Found specification of procedure skd_acquire_irq [2021-11-25 19:22:39,688 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_acquire_irq [2021-11-25 19:22:39,688 INFO L130 BoogieDeclarations]: Found specification of procedure skd_log_skdev [2021-11-25 19:22:39,688 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_log_skdev [2021-11-25 19:22:41,168 INFO L236 CfgBuilder]: Building ICFG [2021-11-25 19:22:41,177 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-25 19:22:41,413 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-25 19:22:41,575 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L6358: assume 0 != __copy_to_user_nocheck_~tmp___1~7#1;__copy_to_user_nocheck_#res#1 := __copy_to_user_nocheck_~ret~3#1; [2021-11-25 19:22:41,575 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L6358: assume !(0 != __copy_to_user_nocheck_~tmp___1~7#1);__copy_to_user_nocheck_#res#1 := __copy_to_user_nocheck_~ret~3#1; [2021-11-25 19:22:41,575 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L6321: SUMMARY for call __copy_to_user_nocheck_#t~ret279#1 := copy_user_generic(__copy_to_user_nocheck_~dst#1.base, __copy_to_user_nocheck_~dst#1.offset, __copy_to_user_nocheck_~src#1.base, __copy_to_user_nocheck_~src#1.offset, __copy_to_user_nocheck_~size#1); srcloc: null [2021-11-25 19:22:41,575 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L6317: assume 16 == __copy_to_user_nocheck_~size#1 % 4294967296; [2021-11-25 19:22:41,576 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L6317: assume !(16 == __copy_to_user_nocheck_~size#1 % 4294967296); [2021-11-25 19:22:41,576 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L6342: assume -9223372036854775808 <= __copy_to_user_nocheck_#t~ret277#1 && __copy_to_user_nocheck_#t~ret277#1 <= 9223372036854775807;__copy_to_user_nocheck_~tmp___0~11#1 := __copy_to_user_nocheck_#t~ret277#1;havoc __copy_to_user_nocheck_#t~ret277#1; [2021-11-25 19:22:41,576 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L6313: assume 10 == __copy_to_user_nocheck_~size#1 % 4294967296; [2021-11-25 19:22:41,576 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L6313: assume !(10 == __copy_to_user_nocheck_~size#1 % 4294967296); [2021-11-25 19:22:41,576 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L6309: assume 8 == __copy_to_user_nocheck_~size#1 % 4294967296; [2021-11-25 19:22:41,576 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L6309: assume !(8 == __copy_to_user_nocheck_~size#1 % 4294967296); [2021-11-25 19:22:41,577 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L6305: assume 4 == __copy_to_user_nocheck_~size#1 % 4294967296; [2021-11-25 19:22:41,577 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L6305: assume !(4 == __copy_to_user_nocheck_~size#1 % 4294967296); [2021-11-25 19:22:41,577 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L6301: assume 2 == __copy_to_user_nocheck_~size#1 % 4294967296; [2021-11-25 19:22:41,577 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L6301: assume !(2 == __copy_to_user_nocheck_~size#1 % 4294967296); [2021-11-25 19:22:41,577 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L6318: SUMMARY for call __copy_to_user_nocheck_#t~ret278#1 := ldv__builtin_expect((if 0 != __copy_to_user_nocheck_~ret~3#1 then 1 else 0), 0); srcloc: null [2021-11-25 19:22:41,577 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L6314: SUMMARY for call __copy_to_user_nocheck_#t~ret277#1 := ldv__builtin_expect((if 0 != __copy_to_user_nocheck_~ret~3#1 then 1 else 0), 0); srcloc: null [2021-11-25 19:22:41,578 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##1: assume 1 == __copy_to_user_nocheck_~size#1 % 4294967296; [2021-11-25 19:22:41,578 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L6310: __copy_to_user_nocheck_#res#1 := __copy_to_user_nocheck_~ret~3#1; [2021-11-25 19:22:41,578 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L6306: __copy_to_user_nocheck_#res#1 := __copy_to_user_nocheck_~ret~3#1; [2021-11-25 19:22:41,578 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##2: assume !(1 == __copy_to_user_nocheck_~size#1 % 4294967296); [2021-11-25 19:22:41,578 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L6302: __copy_to_user_nocheck_#res#1 := __copy_to_user_nocheck_~ret~3#1; [2021-11-25 19:22:41,579 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L6368: __copy_to_user_nocheck_~tmp___2~2#1 := __copy_to_user_nocheck_#t~ret279#1;havoc __copy_to_user_nocheck_#t~ret279#1;__copy_to_user_nocheck_#res#1 := (if __copy_to_user_nocheck_~tmp___2~2#1 % 18446744073709551616 % 4294967296 <= 2147483647 then __copy_to_user_nocheck_~tmp___2~2#1 % 18446744073709551616 % 4294967296 else __copy_to_user_nocheck_~tmp___2~2#1 % 18446744073709551616 % 4294967296 - 4294967296); [2021-11-25 19:22:41,579 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L6298: __copy_to_user_nocheck_#res#1 := __copy_to_user_nocheck_~ret~3#1; [2021-11-25 19:22:41,579 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L6356: assume -9223372036854775808 <= __copy_to_user_nocheck_#t~ret278#1 && __copy_to_user_nocheck_#t~ret278#1 <= 9223372036854775807;__copy_to_user_nocheck_~tmp___1~7#1 := __copy_to_user_nocheck_#t~ret278#1;havoc __copy_to_user_nocheck_#t~ret278#1; [2021-11-25 19:22:41,579 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L6344: assume 0 != __copy_to_user_nocheck_~tmp___0~11#1;__copy_to_user_nocheck_#res#1 := __copy_to_user_nocheck_~ret~3#1; [2021-11-25 19:22:41,579 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L6344: assume !(0 != __copy_to_user_nocheck_~tmp___0~11#1);__copy_to_user_nocheck_#res#1 := __copy_to_user_nocheck_~ret~3#1; [2021-11-25 19:22:55,695 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L6208: assume 16 == __copy_from_user_nocheck_~size#1 % 4294967296; [2021-11-25 19:22:55,695 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L6208: assume !(16 == __copy_from_user_nocheck_~size#1 % 4294967296); [2021-11-25 19:22:55,695 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L6204: assume 10 == __copy_from_user_nocheck_~size#1 % 4294967296; [2021-11-25 19:22:55,695 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L6204: assume !(10 == __copy_from_user_nocheck_~size#1 % 4294967296); [2021-11-25 19:22:55,696 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L6200: assume 8 == __copy_from_user_nocheck_~size#1 % 4294967296; [2021-11-25 19:22:55,696 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L6200: assume !(8 == __copy_from_user_nocheck_~size#1 % 4294967296); [2021-11-25 19:22:55,696 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L6196: assume 4 == __copy_from_user_nocheck_~size#1 % 4294967296; [2021-11-25 19:22:55,696 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L6196: assume !(4 == __copy_from_user_nocheck_~size#1 % 4294967296); [2021-11-25 19:22:55,696 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L6192: assume 2 == __copy_from_user_nocheck_~size#1 % 4294967296; [2021-11-25 19:22:55,696 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L6192: assume !(2 == __copy_from_user_nocheck_~size#1 % 4294967296); [2021-11-25 19:22:55,696 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L6238: assume -9223372036854775808 <= __copy_from_user_nocheck_#t~ret272#1 && __copy_from_user_nocheck_#t~ret272#1 <= 9223372036854775807;__copy_from_user_nocheck_~tmp___0~10#1 := __copy_from_user_nocheck_#t~ret272#1;havoc __copy_from_user_nocheck_#t~ret272#1; [2021-11-25 19:22:55,696 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L6209: SUMMARY for call __copy_from_user_nocheck_#t~ret273#1 := ldv__builtin_expect((if 0 != __copy_from_user_nocheck_~ret~2#1 then 1 else 0), 0); srcloc: null [2021-11-25 19:22:55,696 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L6205: SUMMARY for call __copy_from_user_nocheck_#t~ret272#1 := ldv__builtin_expect((if 0 != __copy_from_user_nocheck_~ret~2#1 then 1 else 0), 0); srcloc: null [2021-11-25 19:22:55,697 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L6201: __copy_from_user_nocheck_#res#1 := __copy_from_user_nocheck_~ret~2#1; [2021-11-25 19:22:55,697 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L6197: __copy_from_user_nocheck_#res#1 := __copy_from_user_nocheck_~ret~2#1; [2021-11-25 19:22:55,697 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L6255: assume 0 != __copy_from_user_nocheck_~tmp___1~6#1;__copy_from_user_nocheck_#res#1 := __copy_from_user_nocheck_~ret~2#1; [2021-11-25 19:22:55,697 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L6255: assume !(0 != __copy_from_user_nocheck_~tmp___1~6#1);__copy_from_user_nocheck_#res#1 := __copy_from_user_nocheck_~ret~2#1; [2021-11-25 19:22:55,697 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L6193: __copy_from_user_nocheck_#res#1 := __copy_from_user_nocheck_~ret~2#1; [2021-11-25 19:22:55,697 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L6189: __copy_from_user_nocheck_#res#1 := __copy_from_user_nocheck_~ret~2#1; [2021-11-25 19:22:55,697 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##1: assume 1 == __copy_from_user_nocheck_~size#1 % 4294967296; [2021-11-25 19:22:55,697 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##2: assume !(1 == __copy_from_user_nocheck_~size#1 % 4294967296); [2021-11-25 19:22:55,697 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L6240: assume 0 != __copy_from_user_nocheck_~tmp___0~10#1;__copy_from_user_nocheck_#res#1 := __copy_from_user_nocheck_~ret~2#1; [2021-11-25 19:22:55,698 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L6240: assume !(0 != __copy_from_user_nocheck_~tmp___0~10#1);__copy_from_user_nocheck_#res#1 := __copy_from_user_nocheck_~ret~2#1; [2021-11-25 19:22:55,698 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L6265: __copy_from_user_nocheck_~tmp___2~1#1 := __copy_from_user_nocheck_#t~ret274#1;havoc __copy_from_user_nocheck_#t~ret274#1;__copy_from_user_nocheck_#res#1 := (if __copy_from_user_nocheck_~tmp___2~1#1 % 18446744073709551616 % 4294967296 <= 2147483647 then __copy_from_user_nocheck_~tmp___2~1#1 % 18446744073709551616 % 4294967296 else __copy_from_user_nocheck_~tmp___2~1#1 % 18446744073709551616 % 4294967296 - 4294967296); [2021-11-25 19:22:55,698 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L6253: assume -9223372036854775808 <= __copy_from_user_nocheck_#t~ret273#1 && __copy_from_user_nocheck_#t~ret273#1 <= 9223372036854775807;__copy_from_user_nocheck_~tmp___1~6#1 := __copy_from_user_nocheck_#t~ret273#1;havoc __copy_from_user_nocheck_#t~ret273#1; [2021-11-25 19:22:55,698 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L6212: SUMMARY for call __copy_from_user_nocheck_#t~ret274#1 := copy_user_generic(__copy_from_user_nocheck_~dst#1.base, __copy_from_user_nocheck_~dst#1.offset, __copy_from_user_nocheck_~src#1.base, __copy_from_user_nocheck_~src#1.offset, __copy_from_user_nocheck_~size#1); srcloc: null [2021-11-25 19:23:05,834 INFO L277 CfgBuilder]: Performing block encoding [2021-11-25 19:23:08,854 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-25 19:23:08,854 INFO L301 CfgBuilder]: Removed 4 assume(true) statements. [2021-11-25 19:23:08,861 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 07:23:08 BoogieIcfgContainer [2021-11-25 19:23:08,861 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-25 19:23:08,863 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-25 19:23:08,863 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-25 19:23:08,867 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-25 19:23:08,867 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 07:22:29" (1/3) ... [2021-11-25 19:23:08,868 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@fea0faf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 07:23:08, skipping insertion in model container [2021-11-25 19:23:08,868 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:22:37" (2/3) ... [2021-11-25 19:23:08,868 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@fea0faf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 07:23:08, skipping insertion in model container [2021-11-25 19:23:08,868 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 07:23:08" (3/3) ... [2021-11-25 19:23:08,870 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.0-rc1---drivers--block--skd.ko.cil.i [2021-11-25 19:23:08,875 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-25 19:23:08,876 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 34 error locations. [2021-11-25 19:23:08,935 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-25 19:23:08,942 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-25 19:23:08,942 INFO L340 AbstractCegarLoop]: Starting to check reachability of 34 error locations. [2021-11-25 19:23:09,020 INFO L276 IsEmpty]: Start isEmpty. Operand has 2706 states, 1613 states have (on average 1.3316800991940483) internal successors, (2148), 1731 states have internal predecessors, (2148), 899 states have call successors, (899), 161 states have call predecessors, (899), 160 states have return successors, (889), 855 states have call predecessors, (889), 889 states have call successors, (889) [2021-11-25 19:23:09,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-11-25 19:23:09,026 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:23:09,027 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:23:09,028 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_linux_arch_io_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2021-11-25 19:23:09,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:23:09,033 INFO L85 PathProgramCache]: Analyzing trace with hash -174472842, now seen corresponding path program 1 times [2021-11-25 19:23:09,042 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:23:09,043 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1612214544] [2021-11-25 19:23:09,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:23:09,044 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:23:09,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:23:10,047 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-25 19:23:10,048 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:23:10,048 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1612214544] [2021-11-25 19:23:10,048 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1612214544] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:23:10,049 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:23:10,049 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 19:23:10,050 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2025719306] [2021-11-25 19:23:10,051 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:23:10,055 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 19:23:10,055 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:23:10,081 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 19:23:10,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 19:23:10,091 INFO L87 Difference]: Start difference. First operand has 2706 states, 1613 states have (on average 1.3316800991940483) internal successors, (2148), 1731 states have internal predecessors, (2148), 899 states have call successors, (899), 161 states have call predecessors, (899), 160 states have return successors, (889), 855 states have call predecessors, (889), 889 states have call successors, (889) Second operand has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-11-25 19:23:13,422 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:23:26,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:23:26,240 INFO L93 Difference]: Finished difference Result 7897 states and 11711 transitions. [2021-11-25 19:23:26,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-25 19:23:26,243 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 47 [2021-11-25 19:23:26,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:23:26,324 INFO L225 Difference]: With dead ends: 7897 [2021-11-25 19:23:26,324 INFO L226 Difference]: Without dead ends: 5180 [2021-11-25 19:23:26,356 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 19:23:26,361 INFO L933 BasicCegarLoop]: 4522 mSDtfsCounter, 3621 mSDsluCounter, 8953 mSDsCounter, 0 mSdLazyCounter, 1661 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3623 SdHoareTripleChecker+Valid, 12401 SdHoareTripleChecker+Invalid, 1663 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1661 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.6s IncrementalHoareTripleChecker+Time [2021-11-25 19:23:26,363 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3623 Valid, 12401 Invalid, 1663 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 1661 Invalid, 1 Unknown, 0 Unchecked, 15.6s Time] [2021-11-25 19:23:26,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5180 states. [2021-11-25 19:23:27,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5180 to 4996. [2021-11-25 19:23:27,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4996 states, 2998 states have (on average 1.3075383589059373) internal successors, (3920), 3188 states have internal predecessors, (3920), 1670 states have call successors, (1670), 296 states have call predecessors, (1670), 294 states have return successors, (1671), 1595 states have call predecessors, (1671), 1668 states have call successors, (1671) [2021-11-25 19:23:27,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4996 states to 4996 states and 7261 transitions. [2021-11-25 19:23:27,135 INFO L78 Accepts]: Start accepts. Automaton has 4996 states and 7261 transitions. Word has length 47 [2021-11-25 19:23:27,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:23:27,136 INFO L470 AbstractCegarLoop]: Abstraction has 4996 states and 7261 transitions. [2021-11-25 19:23:27,136 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-11-25 19:23:27,136 INFO L276 IsEmpty]: Start isEmpty. Operand 4996 states and 7261 transitions. [2021-11-25 19:23:27,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-11-25 19:23:27,142 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:23:27,142 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:23:27,142 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-25 19:23:27,143 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_linux_block_genhd_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2021-11-25 19:23:27,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:23:27,146 INFO L85 PathProgramCache]: Analyzing trace with hash -1122216862, now seen corresponding path program 1 times [2021-11-25 19:23:27,147 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:23:27,147 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2083842994] [2021-11-25 19:23:27,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:23:27,147 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:23:27,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:23:27,724 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-25 19:23:27,724 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:23:27,725 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2083842994] [2021-11-25 19:23:27,725 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2083842994] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:23:27,725 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:23:27,725 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 19:23:27,725 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1790033359] [2021-11-25 19:23:27,726 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:23:27,727 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 19:23:27,728 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:23:27,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 19:23:27,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 19:23:27,729 INFO L87 Difference]: Start difference. First operand 4996 states and 7261 transitions. Second operand has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2021-11-25 19:23:31,193 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:23:36,366 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.46s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:23:44,089 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:23:47,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:23:47,068 INFO L93 Difference]: Finished difference Result 9831 states and 14297 transitions. [2021-11-25 19:23:47,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-25 19:23:47,069 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 52 [2021-11-25 19:23:47,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:23:47,181 INFO L225 Difference]: With dead ends: 9831 [2021-11-25 19:23:47,181 INFO L226 Difference]: Without dead ends: 9829 [2021-11-25 19:23:47,194 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 19:23:47,196 INFO L933 BasicCegarLoop]: 4406 mSDtfsCounter, 3625 mSDsluCounter, 8780 mSDsCounter, 0 mSdLazyCounter, 1623 mSolverCounterSat, 2 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3627 SdHoareTripleChecker+Valid, 12134 SdHoareTripleChecker+Invalid, 1627 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1623 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.8s IncrementalHoareTripleChecker+Time [2021-11-25 19:23:47,197 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3627 Valid, 12134 Invalid, 1627 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 1623 Invalid, 2 Unknown, 0 Unchecked, 18.8s Time] [2021-11-25 19:23:47,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9829 states. [2021-11-25 19:23:48,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9829 to 9645. [2021-11-25 19:23:48,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9645 states, 5796 states have (on average 1.3088336783988959) internal successors, (7586), 6143 states have internal predecessors, (7586), 3248 states have call successors, (3248), 570 states have call predecessors, (3248), 567 states have return successors, (3267), 3097 states have call predecessors, (3267), 3246 states have call successors, (3267) [2021-11-25 19:23:48,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9645 states to 9645 states and 14101 transitions. [2021-11-25 19:23:48,335 INFO L78 Accepts]: Start accepts. Automaton has 9645 states and 14101 transitions. Word has length 52 [2021-11-25 19:23:48,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:23:48,336 INFO L470 AbstractCegarLoop]: Abstraction has 9645 states and 14101 transitions. [2021-11-25 19:23:48,337 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2021-11-25 19:23:48,338 INFO L276 IsEmpty]: Start isEmpty. Operand 9645 states and 14101 transitions. [2021-11-25 19:23:48,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-11-25 19:23:48,349 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:23:48,350 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:23:48,350 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-25 19:23:48,351 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_linux_block_queue_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2021-11-25 19:23:48,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:23:48,352 INFO L85 PathProgramCache]: Analyzing trace with hash 1135563729, now seen corresponding path program 1 times [2021-11-25 19:23:48,352 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:23:48,353 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [428706064] [2021-11-25 19:23:48,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:23:48,353 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:23:48,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:23:48,859 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-25 19:23:48,859 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:23:48,859 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [428706064] [2021-11-25 19:23:48,859 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [428706064] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:23:48,860 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:23:48,860 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 19:23:48,860 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [75940692] [2021-11-25 19:23:48,860 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:23:48,861 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 19:23:48,861 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:23:48,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 19:23:48,862 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 19:23:48,862 INFO L87 Difference]: Start difference. First operand 9645 states and 14101 transitions. Second operand has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2021-11-25 19:23:52,314 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:23:57,166 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.75s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:23:59,184 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:24:01,221 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:24:03,000 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:24:08,228 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:24:10,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:24:10,087 INFO L93 Difference]: Finished difference Result 14672 states and 21395 transitions. [2021-11-25 19:24:10,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-25 19:24:10,087 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 57 [2021-11-25 19:24:10,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:24:10,209 INFO L225 Difference]: With dead ends: 14672 [2021-11-25 19:24:10,210 INFO L226 Difference]: Without dead ends: 14670 [2021-11-25 19:24:10,223 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 19:24:10,225 INFO L933 BasicCegarLoop]: 4490 mSDtfsCounter, 3618 mSDsluCounter, 8881 mSDsCounter, 0 mSdLazyCounter, 1648 mSolverCounterSat, 2 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3622 SdHoareTripleChecker+Valid, 12301 SdHoareTripleChecker+Invalid, 1653 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1648 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.8s IncrementalHoareTripleChecker+Time [2021-11-25 19:24:10,225 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3622 Valid, 12301 Invalid, 1653 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1648 Invalid, 3 Unknown, 0 Unchecked, 20.8s Time] [2021-11-25 19:24:10,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14670 states. [2021-11-25 19:24:11,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14670 to 14498. [2021-11-25 19:24:11,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14498 states, 8720 states have (on average 1.3087155963302752) internal successors, (11412), 9224 states have internal predecessors, (11412), 4880 states have call successors, (4880), 867 states have call predecessors, (4880), 864 states have return successors, (4923), 4656 states have call predecessors, (4923), 4878 states have call successors, (4923) [2021-11-25 19:24:11,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14498 states to 14498 states and 21215 transitions. [2021-11-25 19:24:11,414 INFO L78 Accepts]: Start accepts. Automaton has 14498 states and 21215 transitions. Word has length 57 [2021-11-25 19:24:11,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:24:11,416 INFO L470 AbstractCegarLoop]: Abstraction has 14498 states and 21215 transitions. [2021-11-25 19:24:11,417 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2021-11-25 19:24:11,417 INFO L276 IsEmpty]: Start isEmpty. Operand 14498 states and 21215 transitions. [2021-11-25 19:24:11,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-11-25 19:24:11,420 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:24:11,420 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:24:11,421 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-25 19:24:11,421 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_linux_block_request_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2021-11-25 19:24:11,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:24:11,422 INFO L85 PathProgramCache]: Analyzing trace with hash -1647116332, now seen corresponding path program 1 times [2021-11-25 19:24:11,422 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:24:11,422 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1040500841] [2021-11-25 19:24:11,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:24:11,423 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:24:11,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:24:11,852 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-25 19:24:11,853 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:24:11,853 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1040500841] [2021-11-25 19:24:11,853 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1040500841] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:24:11,853 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:24:11,854 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 19:24:11,854 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1241319926] [2021-11-25 19:24:11,854 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:24:11,854 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 19:24:11,855 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:24:11,855 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 19:24:11,855 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 19:24:11,855 INFO L87 Difference]: Start difference. First operand 14498 states and 21215 transitions. Second operand has 4 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-11-25 19:24:14,823 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:24:18,699 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:24:20,919 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:24:22,731 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.81s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:24:29,129 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:24:31,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:24:31,461 INFO L93 Difference]: Finished difference Result 19529 states and 28499 transitions. [2021-11-25 19:24:31,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-25 19:24:31,461 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 62 [2021-11-25 19:24:31,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:24:31,561 INFO L225 Difference]: With dead ends: 19529 [2021-11-25 19:24:31,561 INFO L226 Difference]: Without dead ends: 19527 [2021-11-25 19:24:31,578 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 19:24:31,580 INFO L933 BasicCegarLoop]: 4483 mSDtfsCounter, 3619 mSDsluCounter, 8879 mSDsCounter, 0 mSdLazyCounter, 1645 mSolverCounterSat, 1 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3621 SdHoareTripleChecker+Valid, 12289 SdHoareTripleChecker+Invalid, 1649 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1645 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.1s IncrementalHoareTripleChecker+Time [2021-11-25 19:24:31,580 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3621 Valid, 12289 Invalid, 1649 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1645 Invalid, 3 Unknown, 0 Unchecked, 19.1s Time] [2021-11-25 19:24:31,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19527 states. [2021-11-25 19:24:33,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19527 to 19367. [2021-11-25 19:24:33,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19367 states, 11653 states have (on average 1.3085900626448126) internal successors, (15249), 12316 states have internal predecessors, (15249), 6518 states have call successors, (6518), 1165 states have call predecessors, (6518), 1162 states have return successors, (6567), 6219 states have call predecessors, (6567), 6516 states have call successors, (6567) [2021-11-25 19:24:33,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19367 states to 19367 states and 28334 transitions. [2021-11-25 19:24:33,191 INFO L78 Accepts]: Start accepts. Automaton has 19367 states and 28334 transitions. Word has length 62 [2021-11-25 19:24:33,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:24:33,192 INFO L470 AbstractCegarLoop]: Abstraction has 19367 states and 28334 transitions. [2021-11-25 19:24:33,193 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-11-25 19:24:33,193 INFO L276 IsEmpty]: Start isEmpty. Operand 19367 states and 28334 transitions. [2021-11-25 19:24:33,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2021-11-25 19:24:33,195 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:24:33,195 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:24:33,196 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-25 19:24:33,196 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_linux_drivers_base_class_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2021-11-25 19:24:33,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:24:33,197 INFO L85 PathProgramCache]: Analyzing trace with hash -1156407448, now seen corresponding path program 1 times [2021-11-25 19:24:33,197 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:24:33,197 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1751495360] [2021-11-25 19:24:33,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:24:33,197 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:24:33,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:24:33,565 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-25 19:24:33,565 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:24:33,565 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1751495360] [2021-11-25 19:24:33,566 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1751495360] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:24:33,566 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:24:33,566 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 19:24:33,566 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [193861837] [2021-11-25 19:24:33,566 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:24:33,568 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 19:24:33,568 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:24:33,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 19:24:33,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 19:24:33,569 INFO L87 Difference]: Start difference. First operand 19367 states and 28334 transitions. Second operand has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2021-11-25 19:24:35,988 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:24:38,023 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:24:40,749 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.62s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:24:42,693 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.94s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:24:44,639 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.69s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:24:46,371 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.73s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:24:51,515 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:24:52,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:24:52,014 INFO L93 Difference]: Finished difference Result 19367 states and 28334 transitions. [2021-11-25 19:24:52,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 19:24:52,015 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 67 [2021-11-25 19:24:52,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:24:52,128 INFO L225 Difference]: With dead ends: 19367 [2021-11-25 19:24:52,128 INFO L226 Difference]: Without dead ends: 19365 [2021-11-25 19:24:52,147 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 19:24:52,148 INFO L933 BasicCegarLoop]: 3347 mSDtfsCounter, 3833 mSDsluCounter, 3854 mSDsCounter, 0 mSdLazyCounter, 1015 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3835 SdHoareTripleChecker+Valid, 6694 SdHoareTripleChecker+Invalid, 1017 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1015 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.1s IncrementalHoareTripleChecker+Time [2021-11-25 19:24:52,149 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3835 Valid, 6694 Invalid, 1017 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1015 Invalid, 2 Unknown, 0 Unchecked, 18.1s Time] [2021-11-25 19:24:52,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19365 states. [2021-11-25 19:24:53,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19365 to 19365. [2021-11-25 19:24:53,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19365 states, 11652 states have (on average 1.3085307243391693) internal successors, (15247), 12314 states have internal predecessors, (15247), 6518 states have call successors, (6518), 1165 states have call predecessors, (6518), 1162 states have return successors, (6567), 6219 states have call predecessors, (6567), 6516 states have call successors, (6567) [2021-11-25 19:24:54,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19365 states to 19365 states and 28332 transitions. [2021-11-25 19:24:54,216 INFO L78 Accepts]: Start accepts. Automaton has 19365 states and 28332 transitions. Word has length 67 [2021-11-25 19:24:54,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:24:54,216 INFO L470 AbstractCegarLoop]: Abstraction has 19365 states and 28332 transitions. [2021-11-25 19:24:54,217 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2021-11-25 19:24:54,217 INFO L276 IsEmpty]: Start isEmpty. Operand 19365 states and 28332 transitions. [2021-11-25 19:24:54,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2021-11-25 19:24:54,218 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:24:54,218 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:24:54,218 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-25 19:24:54,219 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_linux_fs_char_dev_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2021-11-25 19:24:54,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:24:54,220 INFO L85 PathProgramCache]: Analyzing trace with hash 1453438679, now seen corresponding path program 1 times [2021-11-25 19:24:54,220 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:24:54,220 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1986721078] [2021-11-25 19:24:54,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:24:54,221 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:24:54,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:24:54,568 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-25 19:24:54,568 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:24:54,568 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1986721078] [2021-11-25 19:24:54,568 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1986721078] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:24:54,569 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:24:54,569 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 19:24:54,569 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1352064137] [2021-11-25 19:24:54,569 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:24:54,570 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 19:24:54,570 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:24:54,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 19:24:54,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 19:24:54,571 INFO L87 Difference]: Start difference. First operand 19365 states and 28332 transitions. Second operand has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-11-25 19:24:58,031 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:25:01,654 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:25:04,102 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.88s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:25:12,003 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:25:13,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:25:13,771 INFO L93 Difference]: Finished difference Result 26159 states and 38186 transitions. [2021-11-25 19:25:13,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-25 19:25:13,772 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 72 [2021-11-25 19:25:13,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:25:13,917 INFO L225 Difference]: With dead ends: 26159 [2021-11-25 19:25:13,918 INFO L226 Difference]: Without dead ends: 26157 [2021-11-25 19:25:14,052 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 19:25:14,053 INFO L933 BasicCegarLoop]: 4476 mSDtfsCounter, 3587 mSDsluCounter, 8868 mSDsCounter, 0 mSdLazyCounter, 1643 mSolverCounterSat, 1 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3589 SdHoareTripleChecker+Valid, 12273 SdHoareTripleChecker+Invalid, 1647 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1643 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.5s IncrementalHoareTripleChecker+Time [2021-11-25 19:25:14,053 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3589 Valid, 12273 Invalid, 1647 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1643 Invalid, 3 Unknown, 0 Unchecked, 18.5s Time] [2021-11-25 19:25:14,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26157 states. [2021-11-25 19:25:15,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26157 to 26013. [2021-11-25 19:25:15,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26013 states, 15690 states have (on average 1.311663479923518) internal successors, (20580), 16604 states have internal predecessors, (20580), 8706 states have call successors, (8706), 1587 states have call predecessors, (8706), 1584 states have return successors, (8755), 8267 states have call predecessors, (8755), 8704 states have call successors, (8755) [2021-11-25 19:25:16,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26013 states to 26013 states and 38041 transitions. [2021-11-25 19:25:16,047 INFO L78 Accepts]: Start accepts. Automaton has 26013 states and 38041 transitions. Word has length 72 [2021-11-25 19:25:16,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:25:16,050 INFO L470 AbstractCegarLoop]: Abstraction has 26013 states and 38041 transitions. [2021-11-25 19:25:16,050 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-11-25 19:25:16,051 INFO L276 IsEmpty]: Start isEmpty. Operand 26013 states and 38041 transitions. [2021-11-25 19:25:16,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2021-11-25 19:25:16,052 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:25:16,052 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:25:16,053 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-25 19:25:16,053 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2021-11-25 19:25:16,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:25:16,053 INFO L85 PathProgramCache]: Analyzing trace with hash -2009721783, now seen corresponding path program 1 times [2021-11-25 19:25:16,054 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:25:16,054 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [250154816] [2021-11-25 19:25:16,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:25:16,054 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:25:16,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:25:16,431 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-25 19:25:16,432 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:25:16,432 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [250154816] [2021-11-25 19:25:16,432 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [250154816] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:25:16,432 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:25:16,432 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 19:25:16,433 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1990897464] [2021-11-25 19:25:16,433 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:25:16,433 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 19:25:16,433 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:25:16,434 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 19:25:16,436 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 19:25:16,436 INFO L87 Difference]: Start difference. First operand 26013 states and 38041 transitions. Second operand has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2021-11-25 19:25:19,928 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:25:23,459 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:25:27,048 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:25:29,086 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:25:35,672 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.81s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:25:37,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:25:37,317 INFO L93 Difference]: Finished difference Result 26165 states and 38192 transitions. [2021-11-25 19:25:37,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-25 19:25:37,318 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 77 [2021-11-25 19:25:37,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:25:37,462 INFO L225 Difference]: With dead ends: 26165 [2021-11-25 19:25:37,462 INFO L226 Difference]: Without dead ends: 26163 [2021-11-25 19:25:37,476 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 19:25:37,477 INFO L933 BasicCegarLoop]: 4483 mSDtfsCounter, 3612 mSDsluCounter, 8878 mSDsCounter, 0 mSdLazyCounter, 1647 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3614 SdHoareTripleChecker+Valid, 12287 SdHoareTripleChecker+Invalid, 1650 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1647 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.1s IncrementalHoareTripleChecker+Time [2021-11-25 19:25:37,478 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3614 Valid, 12287 Invalid, 1650 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1647 Invalid, 2 Unknown, 0 Unchecked, 20.1s Time] [2021-11-25 19:25:37,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26163 states. [2021-11-25 19:25:39,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26163 to 26029. [2021-11-25 19:25:39,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26029 states, 15699 states have (on average 1.3115485062742849) internal successors, (20590), 16613 states have internal predecessors, (20590), 8710 states have call successors, (8710), 1590 states have call predecessors, (8710), 1587 states have return successors, (8759), 8271 states have call predecessors, (8759), 8708 states have call successors, (8759) [2021-11-25 19:25:39,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26029 states to 26029 states and 38059 transitions. [2021-11-25 19:25:39,367 INFO L78 Accepts]: Start accepts. Automaton has 26029 states and 38059 transitions. Word has length 77 [2021-11-25 19:25:39,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:25:39,368 INFO L470 AbstractCegarLoop]: Abstraction has 26029 states and 38059 transitions. [2021-11-25 19:25:39,368 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2021-11-25 19:25:39,368 INFO L276 IsEmpty]: Start isEmpty. Operand 26029 states and 38059 transitions. [2021-11-25 19:25:39,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2021-11-25 19:25:39,378 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:25:39,378 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:25:39,379 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-25 19:25:39,379 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2021-11-25 19:25:39,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:25:39,380 INFO L85 PathProgramCache]: Analyzing trace with hash 2132775813, now seen corresponding path program 1 times [2021-11-25 19:25:39,381 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:25:39,381 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [247166055] [2021-11-25 19:25:39,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:25:39,381 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:25:39,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:25:40,145 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2021-11-25 19:25:40,145 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:25:40,146 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [247166055] [2021-11-25 19:25:40,146 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [247166055] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:25:40,146 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:25:40,146 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 19:25:40,146 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [589994316] [2021-11-25 19:25:40,146 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:25:40,147 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 19:25:40,148 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:25:40,148 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 19:25:40,148 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 19:25:40,149 INFO L87 Difference]: Start difference. First operand 26029 states and 38059 transitions. Second operand has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-11-25 19:25:43,177 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:25:46,303 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.97s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:25:48,094 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.52s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:25:52,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:25:52,542 INFO L93 Difference]: Finished difference Result 55002 states and 80072 transitions. [2021-11-25 19:25:52,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 19:25:52,543 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 93 [2021-11-25 19:25:52,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:25:52,771 INFO L225 Difference]: With dead ends: 55002 [2021-11-25 19:25:52,771 INFO L226 Difference]: Without dead ends: 28991 [2021-11-25 19:25:52,906 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 19:25:52,907 INFO L933 BasicCegarLoop]: 3877 mSDtfsCounter, 3628 mSDsluCounter, 1225 mSDsCounter, 0 mSdLazyCounter, 755 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3628 SdHoareTripleChecker+Valid, 4919 SdHoareTripleChecker+Invalid, 757 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 755 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.4s IncrementalHoareTripleChecker+Time [2021-11-25 19:25:52,907 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3628 Valid, 4919 Invalid, 757 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 755 Invalid, 1 Unknown, 0 Unchecked, 11.4s Time] [2021-11-25 19:25:52,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28991 states. [2021-11-25 19:25:54,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28991 to 28965. [2021-11-25 19:25:54,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28965 states, 17420 states have (on average 1.3041905855338691) internal successors, (22719), 18376 states have internal predecessors, (22719), 9618 states have call successors, (9618), 1897 states have call predecessors, (9618), 1894 states have return successors, (9675), 9169 states have call predecessors, (9675), 9616 states have call successors, (9675) [2021-11-25 19:25:55,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28965 states to 28965 states and 42012 transitions. [2021-11-25 19:25:55,039 INFO L78 Accepts]: Start accepts. Automaton has 28965 states and 42012 transitions. Word has length 93 [2021-11-25 19:25:55,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:25:55,041 INFO L470 AbstractCegarLoop]: Abstraction has 28965 states and 42012 transitions. [2021-11-25 19:25:55,041 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-11-25 19:25:55,041 INFO L276 IsEmpty]: Start isEmpty. Operand 28965 states and 42012 transitions. [2021-11-25 19:25:55,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2021-11-25 19:25:55,044 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:25:55,044 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:25:55,045 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-25 19:25:55,045 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_linux_kernel_locking_rwlock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2021-11-25 19:25:55,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:25:55,045 INFO L85 PathProgramCache]: Analyzing trace with hash 1203807764, now seen corresponding path program 1 times [2021-11-25 19:25:55,046 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:25:55,046 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [457080328] [2021-11-25 19:25:55,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:25:55,046 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:25:55,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:25:55,420 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-25 19:25:55,420 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:25:55,421 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [457080328] [2021-11-25 19:25:55,421 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [457080328] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:25:55,421 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:25:55,421 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 19:25:55,422 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1167249722] [2021-11-25 19:25:55,422 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:25:55,423 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 19:25:55,423 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:25:55,423 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 19:25:55,423 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 19:25:55,424 INFO L87 Difference]: Start difference. First operand 28965 states and 42012 transitions. Second operand has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-11-25 19:25:58,560 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:26:02,788 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.40s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:26:04,753 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.48s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:26:12,854 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.48s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:26:14,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:26:14,811 INFO L93 Difference]: Finished difference Result 29097 states and 42142 transitions. [2021-11-25 19:26:14,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-25 19:26:14,812 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 82 [2021-11-25 19:26:14,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:26:14,955 INFO L225 Difference]: With dead ends: 29097 [2021-11-25 19:26:14,955 INFO L226 Difference]: Without dead ends: 29095 [2021-11-25 19:26:14,976 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 19:26:14,976 INFO L933 BasicCegarLoop]: 4574 mSDtfsCounter, 3612 mSDsluCounter, 8974 mSDsCounter, 0 mSdLazyCounter, 1667 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3614 SdHoareTripleChecker+Valid, 12465 SdHoareTripleChecker+Invalid, 1669 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1667 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.4s IncrementalHoareTripleChecker+Time [2021-11-25 19:26:14,977 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3614 Valid, 12465 Invalid, 1669 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1667 Invalid, 1 Unknown, 0 Unchecked, 18.4s Time] [2021-11-25 19:26:15,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29095 states. [2021-11-25 19:26:16,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29095 to 28973. [2021-11-25 19:26:16,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28973 states, 17425 states have (on average 1.3041606886657102) internal successors, (22725), 18381 states have internal predecessors, (22725), 9620 states have call successors, (9620), 1898 states have call predecessors, (9620), 1895 states have return successors, (9677), 9171 states have call predecessors, (9677), 9618 states have call successors, (9677) [2021-11-25 19:26:16,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28973 states to 28973 states and 42022 transitions. [2021-11-25 19:26:16,873 INFO L78 Accepts]: Start accepts. Automaton has 28973 states and 42022 transitions. Word has length 82 [2021-11-25 19:26:16,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:26:16,874 INFO L470 AbstractCegarLoop]: Abstraction has 28973 states and 42022 transitions. [2021-11-25 19:26:16,874 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-11-25 19:26:16,874 INFO L276 IsEmpty]: Start isEmpty. Operand 28973 states and 42022 transitions. [2021-11-25 19:26:16,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2021-11-25 19:26:16,876 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:26:16,876 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:26:16,876 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-25 19:26:16,877 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_linux_kernel_locking_rwlock_check_final_stateErr1ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2021-11-25 19:26:16,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:26:16,877 INFO L85 PathProgramCache]: Analyzing trace with hash 1513208983, now seen corresponding path program 1 times [2021-11-25 19:26:16,878 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:26:16,878 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [283163468] [2021-11-25 19:26:16,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:26:16,878 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:26:17,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:26:17,412 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-25 19:26:17,412 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:26:17,412 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [283163468] [2021-11-25 19:26:17,413 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [283163468] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:26:17,413 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:26:17,413 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 19:26:17,413 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [521522433] [2021-11-25 19:26:17,413 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:26:17,414 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 19:26:17,414 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:26:17,415 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 19:26:17,415 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 19:26:17,415 INFO L87 Difference]: Start difference. First operand 28973 states and 42022 transitions. Second operand has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-11-25 19:26:20,931 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:26:25,635 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:26:27,243 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:26:29,433 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.68s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:26:35,775 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:26:38,247 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.83s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:26:40,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:26:40,121 INFO L93 Difference]: Finished difference Result 29111 states and 42164 transitions. [2021-11-25 19:26:40,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-25 19:26:40,122 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 84 [2021-11-25 19:26:40,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:26:40,214 INFO L225 Difference]: With dead ends: 29111 [2021-11-25 19:26:40,214 INFO L226 Difference]: Without dead ends: 29109 [2021-11-25 19:26:40,224 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 19:26:40,225 INFO L933 BasicCegarLoop]: 4577 mSDtfsCounter, 3592 mSDsluCounter, 8980 mSDsCounter, 0 mSdLazyCounter, 1666 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3596 SdHoareTripleChecker+Valid, 12475 SdHoareTripleChecker+Invalid, 1669 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1666 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.8s IncrementalHoareTripleChecker+Time [2021-11-25 19:26:40,226 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3596 Valid, 12475 Invalid, 1669 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1666 Invalid, 2 Unknown, 0 Unchecked, 21.8s Time] [2021-11-25 19:26:40,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29109 states. [2021-11-25 19:26:41,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29109 to 28973. [2021-11-25 19:26:41,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28973 states, 17425 states have (on average 1.304103299856528) internal successors, (22724), 18381 states have internal predecessors, (22724), 9620 states have call successors, (9620), 1898 states have call predecessors, (9620), 1895 states have return successors, (9677), 9171 states have call predecessors, (9677), 9618 states have call successors, (9677) [2021-11-25 19:26:42,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28973 states to 28973 states and 42021 transitions. [2021-11-25 19:26:42,117 INFO L78 Accepts]: Start accepts. Automaton has 28973 states and 42021 transitions. Word has length 84 [2021-11-25 19:26:42,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:26:42,118 INFO L470 AbstractCegarLoop]: Abstraction has 28973 states and 42021 transitions. [2021-11-25 19:26:42,118 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-11-25 19:26:42,118 INFO L276 IsEmpty]: Start isEmpty. Operand 28973 states and 42021 transitions. [2021-11-25 19:26:42,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2021-11-25 19:26:42,120 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:26:42,120 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:26:42,121 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-25 19:26:42,121 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2021-11-25 19:26:42,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:26:42,121 INFO L85 PathProgramCache]: Analyzing trace with hash -269451231, now seen corresponding path program 1 times [2021-11-25 19:26:42,121 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:26:42,121 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1260944645] [2021-11-25 19:26:42,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:26:42,122 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:26:42,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:26:42,505 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2021-11-25 19:26:42,506 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:26:42,506 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1260944645] [2021-11-25 19:26:42,506 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1260944645] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 19:26:42,506 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1066167750] [2021-11-25 19:26:42,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:26:42,507 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 19:26:42,507 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d496c0d-021f-4d69-a250-822764345991/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 19:26:42,514 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d496c0d-021f-4d69-a250-822764345991/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 19:26:42,522 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d496c0d-021f-4d69-a250-822764345991/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-25 19:26:44,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:26:44,380 INFO L263 TraceCheckSpWp]: Trace formula consists of 7544 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-25 19:26:44,393 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 19:26:44,588 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2021-11-25 19:26:44,588 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 19:26:44,589 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1066167750] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:26:44,589 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-25 19:26:44,589 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2021-11-25 19:26:44,589 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [945944437] [2021-11-25 19:26:44,589 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:26:44,590 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 19:26:44,590 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:26:44,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 19:26:44,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-11-25 19:26:44,591 INFO L87 Difference]: Start difference. First operand 28973 states and 42021 transitions. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2021-11-25 19:26:47,300 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:26:50,906 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:26:53,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:26:53,828 INFO L93 Difference]: Finished difference Result 57966 states and 84047 transitions. [2021-11-25 19:26:53,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 19:26:53,829 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 98 [2021-11-25 19:26:53,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:26:53,943 INFO L225 Difference]: With dead ends: 57966 [2021-11-25 19:26:53,943 INFO L226 Difference]: Without dead ends: 29011 [2021-11-25 19:26:54,012 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-11-25 19:26:54,013 INFO L933 BasicCegarLoop]: 3878 mSDtfsCounter, 3615 mSDsluCounter, 1235 mSDsCounter, 0 mSdLazyCounter, 756 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3615 SdHoareTripleChecker+Valid, 4929 SdHoareTripleChecker+Invalid, 758 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 756 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.0s IncrementalHoareTripleChecker+Time [2021-11-25 19:26:54,013 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3615 Valid, 4929 Invalid, 758 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 756 Invalid, 1 Unknown, 0 Unchecked, 8.0s Time] [2021-11-25 19:26:54,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29011 states. [2021-11-25 19:26:55,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29011 to 28985. [2021-11-25 19:26:55,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28985 states, 17429 states have (on average 1.3035745022663376) internal successors, (22720), 18385 states have internal predecessors, (22720), 9624 states have call successors, (9624), 1902 states have call predecessors, (9624), 1899 states have return successors, (9681), 9175 states have call predecessors, (9681), 9622 states have call successors, (9681) [2021-11-25 19:26:55,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28985 states to 28985 states and 42025 transitions. [2021-11-25 19:26:55,656 INFO L78 Accepts]: Start accepts. Automaton has 28985 states and 42025 transitions. Word has length 98 [2021-11-25 19:26:55,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:26:55,657 INFO L470 AbstractCegarLoop]: Abstraction has 28985 states and 42025 transitions. [2021-11-25 19:26:55,657 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2021-11-25 19:26:55,657 INFO L276 IsEmpty]: Start isEmpty. Operand 28985 states and 42025 transitions. [2021-11-25 19:26:55,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2021-11-25 19:26:55,659 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:26:55,660 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:26:55,702 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d496c0d-021f-4d69-a250-822764345991/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2021-11-25 19:26:55,881 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d496c0d-021f-4d69-a250-822764345991/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 19:26:55,885 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_linux_kernel_module_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2021-11-25 19:26:55,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:26:55,885 INFO L85 PathProgramCache]: Analyzing trace with hash 1820455625, now seen corresponding path program 1 times [2021-11-25 19:26:55,885 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:26:55,885 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [863711154] [2021-11-25 19:26:55,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:26:55,886 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:26:56,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:26:56,220 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-25 19:26:56,220 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:26:56,221 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [863711154] [2021-11-25 19:26:56,221 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [863711154] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:26:56,221 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:26:56,221 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 19:26:56,221 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [510406113] [2021-11-25 19:26:56,221 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:26:56,222 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 19:26:56,222 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:26:56,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 19:26:56,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 19:26:56,223 INFO L87 Difference]: Start difference. First operand 28985 states and 42025 transitions. Second operand has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2021-11-25 19:26:59,429 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:27:03,881 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:27:05,322 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:27:06,382 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:27:14,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:27:14,610 INFO L93 Difference]: Finished difference Result 29103 states and 42141 transitions. [2021-11-25 19:27:14,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-25 19:27:14,610 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 89 [2021-11-25 19:27:14,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:27:14,722 INFO L225 Difference]: With dead ends: 29103 [2021-11-25 19:27:14,722 INFO L226 Difference]: Without dead ends: 29101 [2021-11-25 19:27:14,735 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 19:27:14,736 INFO L933 BasicCegarLoop]: 4574 mSDtfsCounter, 3594 mSDsluCounter, 8978 mSDsCounter, 0 mSdLazyCounter, 1666 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3596 SdHoareTripleChecker+Valid, 12469 SdHoareTripleChecker+Invalid, 1669 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1666 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.4s IncrementalHoareTripleChecker+Time [2021-11-25 19:27:14,736 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3596 Valid, 12469 Invalid, 1669 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1666 Invalid, 2 Unknown, 0 Unchecked, 17.4s Time] [2021-11-25 19:27:14,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29101 states. [2021-11-25 19:27:16,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29101 to 28991. [2021-11-25 19:27:16,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28991 states, 17432 states have (on average 1.3035222579164754) internal successors, (22723), 18388 states have internal predecessors, (22723), 9626 states have call successors, (9626), 1903 states have call predecessors, (9626), 1900 states have return successors, (9683), 9177 states have call predecessors, (9683), 9624 states have call successors, (9683) [2021-11-25 19:27:16,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28991 states to 28991 states and 42032 transitions. [2021-11-25 19:27:16,584 INFO L78 Accepts]: Start accepts. Automaton has 28991 states and 42032 transitions. Word has length 89 [2021-11-25 19:27:16,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:27:16,585 INFO L470 AbstractCegarLoop]: Abstraction has 28991 states and 42032 transitions. [2021-11-25 19:27:16,585 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2021-11-25 19:27:16,585 INFO L276 IsEmpty]: Start isEmpty. Operand 28991 states and 42032 transitions. [2021-11-25 19:27:16,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2021-11-25 19:27:16,587 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:27:16,587 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:27:16,587 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-11-25 19:27:16,587 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2021-11-25 19:27:16,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:27:16,588 INFO L85 PathProgramCache]: Analyzing trace with hash 309865313, now seen corresponding path program 1 times [2021-11-25 19:27:16,588 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:27:16,588 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [172240358] [2021-11-25 19:27:16,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:27:16,589 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:27:16,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:27:17,017 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 59 trivial. 0 not checked. [2021-11-25 19:27:17,017 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:27:17,018 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [172240358] [2021-11-25 19:27:17,018 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [172240358] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:27:17,018 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:27:17,018 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-25 19:27:17,018 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [964325307] [2021-11-25 19:27:17,019 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:27:17,019 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-25 19:27:17,019 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:27:17,020 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-25 19:27:17,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-25 19:27:17,020 INFO L87 Difference]: Start difference. First operand 28991 states and 42032 transitions. Second operand has 5 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-11-25 19:27:21,186 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:27:25,042 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:27:29,061 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:27:31,996 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:27:41,833 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:27:42,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:27:42,953 INFO L93 Difference]: Finished difference Result 37100 states and 53159 transitions. [2021-11-25 19:27:42,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-25 19:27:42,959 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 98 [2021-11-25 19:27:42,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:27:43,076 INFO L225 Difference]: With dead ends: 37100 [2021-11-25 19:27:43,076 INFO L226 Difference]: Without dead ends: 37098 [2021-11-25 19:27:43,093 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-25 19:27:43,093 INFO L933 BasicCegarLoop]: 3959 mSDtfsCounter, 1976 mSDsluCounter, 12465 mSDsCounter, 0 mSdLazyCounter, 2121 mSolverCounterSat, 2 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1977 SdHoareTripleChecker+Valid, 14865 SdHoareTripleChecker+Invalid, 2127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 2121 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 24.6s IncrementalHoareTripleChecker+Time [2021-11-25 19:27:43,094 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1977 Valid, 14865 Invalid, 2127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 2121 Invalid, 4 Unknown, 0 Unchecked, 24.6s Time] [2021-11-25 19:27:43,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37098 states. [2021-11-25 19:27:45,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37098 to 36856. [2021-11-25 19:27:45,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36856 states, 22155 states have (on average 1.296998420221169) internal successors, (28735), 23407 states have internal predecessors, (28735), 12022 states have call successors, (12022), 2685 states have call predecessors, (12022), 2646 states have return successors, (12122), 11336 states have call predecessors, (12122), 12020 states have call successors, (12122) [2021-11-25 19:27:45,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36856 states to 36856 states and 52879 transitions. [2021-11-25 19:27:45,348 INFO L78 Accepts]: Start accepts. Automaton has 36856 states and 52879 transitions. Word has length 98 [2021-11-25 19:27:45,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:27:45,348 INFO L470 AbstractCegarLoop]: Abstraction has 36856 states and 52879 transitions. [2021-11-25 19:27:45,348 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-11-25 19:27:45,349 INFO L276 IsEmpty]: Start isEmpty. Operand 36856 states and 52879 transitions. [2021-11-25 19:27:45,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-11-25 19:27:45,351 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:27:45,352 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:27:45,352 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-11-25 19:27:45,352 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_linux_kernel_rcu_update_lock_bh_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2021-11-25 19:27:45,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:27:45,353 INFO L85 PathProgramCache]: Analyzing trace with hash 197801777, now seen corresponding path program 1 times [2021-11-25 19:27:45,353 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:27:45,353 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [179842295] [2021-11-25 19:27:45,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:27:45,354 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:27:45,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:27:46,030 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-25 19:27:46,031 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:27:46,031 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [179842295] [2021-11-25 19:27:46,031 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [179842295] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:27:46,031 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:27:46,031 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 19:27:46,031 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1557651371] [2021-11-25 19:27:46,045 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:27:46,047 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 19:27:46,047 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:27:46,047 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 19:27:46,048 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 19:27:46,048 INFO L87 Difference]: Start difference. First operand 36856 states and 52879 transitions. Second operand has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-11-25 19:27:49,748 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:27:52,693 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.48s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:27:56,901 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:28:03,939 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:28:06,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:28:06,967 INFO L93 Difference]: Finished difference Result 36966 states and 52986 transitions. [2021-11-25 19:28:06,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-25 19:28:06,968 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 94 [2021-11-25 19:28:06,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:28:07,090 INFO L225 Difference]: With dead ends: 36966 [2021-11-25 19:28:07,090 INFO L226 Difference]: Without dead ends: 36964 [2021-11-25 19:28:07,105 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 19:28:07,106 INFO L933 BasicCegarLoop]: 4613 mSDtfsCounter, 3591 mSDsluCounter, 9026 mSDsCounter, 0 mSdLazyCounter, 1684 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3593 SdHoareTripleChecker+Valid, 12547 SdHoareTripleChecker+Invalid, 1687 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1684 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.5s IncrementalHoareTripleChecker+Time [2021-11-25 19:28:07,106 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3593 Valid, 12547 Invalid, 1687 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1684 Invalid, 2 Unknown, 0 Unchecked, 19.5s Time] [2021-11-25 19:28:07,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36964 states. [2021-11-25 19:28:09,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36964 to 36862. [2021-11-25 19:28:09,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36862 states, 22158 states have (on average 1.2969582092246592) internal successors, (28738), 23410 states have internal predecessors, (28738), 12024 states have call successors, (12024), 2686 states have call predecessors, (12024), 2647 states have return successors, (12124), 11338 states have call predecessors, (12124), 12022 states have call successors, (12124) [2021-11-25 19:28:09,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36862 states to 36862 states and 52886 transitions. [2021-11-25 19:28:09,278 INFO L78 Accepts]: Start accepts. Automaton has 36862 states and 52886 transitions. Word has length 94 [2021-11-25 19:28:09,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:28:09,279 INFO L470 AbstractCegarLoop]: Abstraction has 36862 states and 52886 transitions. [2021-11-25 19:28:09,279 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-11-25 19:28:09,279 INFO L276 IsEmpty]: Start isEmpty. Operand 36862 states and 52886 transitions. [2021-11-25 19:28:09,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2021-11-25 19:28:09,281 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:28:09,282 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:28:09,282 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-11-25 19:28:09,282 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_linux_kernel_rcu_update_lock_sched_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2021-11-25 19:28:09,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:28:09,282 INFO L85 PathProgramCache]: Analyzing trace with hash 464173663, now seen corresponding path program 1 times [2021-11-25 19:28:09,282 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:28:09,282 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1253602456] [2021-11-25 19:28:09,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:28:09,283 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:28:09,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:28:09,614 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-25 19:28:09,615 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:28:09,615 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1253602456] [2021-11-25 19:28:09,615 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1253602456] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:28:09,615 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:28:09,615 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 19:28:09,618 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1812321806] [2021-11-25 19:28:09,618 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:28:09,619 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 19:28:09,619 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:28:09,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 19:28:09,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 19:28:09,620 INFO L87 Difference]: Start difference. First operand 36862 states and 52886 transitions. Second operand has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-11-25 19:28:13,714 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:28:18,420 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:28:21,393 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:28:30,338 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:28:34,994 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:28:35,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:28:35,516 INFO L93 Difference]: Finished difference Result 36964 states and 52984 transitions. [2021-11-25 19:28:35,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-25 19:28:35,517 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 99 [2021-11-25 19:28:35,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:28:35,633 INFO L225 Difference]: With dead ends: 36964 [2021-11-25 19:28:35,633 INFO L226 Difference]: Without dead ends: 36962 [2021-11-25 19:28:35,646 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 19:28:35,647 INFO L933 BasicCegarLoop]: 4613 mSDtfsCounter, 3588 mSDsluCounter, 9026 mSDsCounter, 0 mSdLazyCounter, 1682 mSolverCounterSat, 1 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3590 SdHoareTripleChecker+Valid, 12547 SdHoareTripleChecker+Invalid, 1687 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1682 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 24.6s IncrementalHoareTripleChecker+Time [2021-11-25 19:28:35,648 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3590 Valid, 12547 Invalid, 1687 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1682 Invalid, 4 Unknown, 0 Unchecked, 24.6s Time] [2021-11-25 19:28:35,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36962 states. [2021-11-25 19:28:37,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36962 to 36868. [2021-11-25 19:28:37,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36868 states, 22161 states have (on average 1.2969180091151122) internal successors, (28741), 23413 states have internal predecessors, (28741), 12026 states have call successors, (12026), 2687 states have call predecessors, (12026), 2648 states have return successors, (12126), 11340 states have call predecessors, (12126), 12024 states have call successors, (12126) [2021-11-25 19:28:37,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36868 states to 36868 states and 52893 transitions. [2021-11-25 19:28:37,706 INFO L78 Accepts]: Start accepts. Automaton has 36868 states and 52893 transitions. Word has length 99 [2021-11-25 19:28:37,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:28:37,707 INFO L470 AbstractCegarLoop]: Abstraction has 36868 states and 52893 transitions. [2021-11-25 19:28:37,707 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-11-25 19:28:37,707 INFO L276 IsEmpty]: Start isEmpty. Operand 36868 states and 52893 transitions. [2021-11-25 19:28:37,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2021-11-25 19:28:37,709 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:28:37,709 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:28:37,710 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-11-25 19:28:37,710 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2021-11-25 19:28:37,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:28:37,710 INFO L85 PathProgramCache]: Analyzing trace with hash 137168764, now seen corresponding path program 1 times [2021-11-25 19:28:37,711 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:28:37,711 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1992367318] [2021-11-25 19:28:37,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:28:37,711 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:28:37,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:28:38,080 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 115 trivial. 0 not checked. [2021-11-25 19:28:38,081 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:28:38,081 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1992367318] [2021-11-25 19:28:38,081 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1992367318] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:28:38,081 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:28:38,081 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 19:28:38,082 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1297054820] [2021-11-25 19:28:38,082 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:28:38,082 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 19:28:38,082 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:28:38,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 19:28:38,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 19:28:38,083 INFO L87 Difference]: Start difference. First operand 36868 states and 52893 transitions. Second operand has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 3 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2021-11-25 19:28:41,099 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:28:44,402 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.79s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:28:50,240 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:28:53,532 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:28:58,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:28:58,099 INFO L93 Difference]: Finished difference Result 92063 states and 132259 transitions. [2021-11-25 19:28:58,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 19:28:58,100 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 3 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 116 [2021-11-25 19:28:58,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:28:58,325 INFO L225 Difference]: With dead ends: 92063 [2021-11-25 19:28:58,325 INFO L226 Difference]: Without dead ends: 55213 [2021-11-25 19:28:58,433 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 19:28:58,434 INFO L933 BasicCegarLoop]: 4747 mSDtfsCounter, 3455 mSDsluCounter, 3823 mSDsCounter, 0 mSdLazyCounter, 1119 mSolverCounterSat, 0 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3455 SdHoareTripleChecker+Valid, 8068 SdHoareTripleChecker+Invalid, 1122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1119 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.2s IncrementalHoareTripleChecker+Time [2021-11-25 19:28:58,435 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3455 Valid, 8068 Invalid, 1122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1119 Invalid, 3 Unknown, 0 Unchecked, 17.2s Time] [2021-11-25 19:28:58,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55213 states. [2021-11-25 19:29:01,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55213 to 46564. [2021-11-25 19:29:01,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46564 states, 27975 states have (on average 1.2975513851653262) internal successors, (36299), 29541 states have internal predecessors, (36299), 15236 states have call successors, (15236), 3361 states have call predecessors, (15236), 3320 states have return successors, (15352), 14394 states have call predecessors, (15352), 15234 states have call successors, (15352) [2021-11-25 19:29:01,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46564 states to 46564 states and 66887 transitions. [2021-11-25 19:29:01,760 INFO L78 Accepts]: Start accepts. Automaton has 46564 states and 66887 transitions. Word has length 116 [2021-11-25 19:29:01,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:29:01,761 INFO L470 AbstractCegarLoop]: Abstraction has 46564 states and 66887 transitions. [2021-11-25 19:29:01,761 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 3 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2021-11-25 19:29:01,761 INFO L276 IsEmpty]: Start isEmpty. Operand 46564 states and 66887 transitions. [2021-11-25 19:29:01,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2021-11-25 19:29:01,764 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:29:01,765 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:29:01,765 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-11-25 19:29:01,765 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2021-11-25 19:29:01,766 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:29:01,766 INFO L85 PathProgramCache]: Analyzing trace with hash -1028633140, now seen corresponding path program 1 times [2021-11-25 19:29:01,766 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:29:01,766 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [590391478] [2021-11-25 19:29:01,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:29:01,767 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:29:01,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:29:02,117 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-25 19:29:02,118 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:29:02,118 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [590391478] [2021-11-25 19:29:02,118 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [590391478] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:29:02,118 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:29:02,119 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 19:29:02,119 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [134467781] [2021-11-25 19:29:02,119 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:29:02,120 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 19:29:02,120 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:29:02,120 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 19:29:02,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 19:29:02,121 INFO L87 Difference]: Start difference. First operand 46564 states and 66887 transitions. Second operand has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-11-25 19:29:05,506 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:29:13,349 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:29:15,050 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:29:24,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:29:24,255 INFO L93 Difference]: Finished difference Result 46658 states and 66976 transitions. [2021-11-25 19:29:24,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-25 19:29:24,255 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 104 [2021-11-25 19:29:24,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:29:24,408 INFO L225 Difference]: With dead ends: 46658 [2021-11-25 19:29:24,408 INFO L226 Difference]: Without dead ends: 46656 [2021-11-25 19:29:24,427 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 19:29:24,427 INFO L933 BasicCegarLoop]: 4507 mSDtfsCounter, 3585 mSDsluCounter, 8898 mSDsCounter, 0 mSdLazyCounter, 1640 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3587 SdHoareTripleChecker+Valid, 12335 SdHoareTripleChecker+Invalid, 1643 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1640 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.9s IncrementalHoareTripleChecker+Time [2021-11-25 19:29:24,428 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3587 Valid, 12335 Invalid, 1643 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1640 Invalid, 2 Unknown, 0 Unchecked, 19.9s Time] [2021-11-25 19:29:24,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46656 states. [2021-11-25 19:29:27,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46656 to 46570. [2021-11-25 19:29:27,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46570 states, 27978 states have (on average 1.2975194795911074) internal successors, (36302), 29544 states have internal predecessors, (36302), 15238 states have call successors, (15238), 3362 states have call predecessors, (15238), 3321 states have return successors, (15354), 14396 states have call predecessors, (15354), 15236 states have call successors, (15354) [2021-11-25 19:29:28,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46570 states to 46570 states and 66894 transitions. [2021-11-25 19:29:28,216 INFO L78 Accepts]: Start accepts. Automaton has 46570 states and 66894 transitions. Word has length 104 [2021-11-25 19:29:28,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:29:28,217 INFO L470 AbstractCegarLoop]: Abstraction has 46570 states and 66894 transitions. [2021-11-25 19:29:28,217 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-11-25 19:29:28,217 INFO L276 IsEmpty]: Start isEmpty. Operand 46570 states and 66894 transitions. [2021-11-25 19:29:28,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2021-11-25 19:29:28,221 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:29:28,222 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:29:28,222 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-11-25 19:29:28,222 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2021-11-25 19:29:28,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:29:28,223 INFO L85 PathProgramCache]: Analyzing trace with hash -112274403, now seen corresponding path program 1 times [2021-11-25 19:29:28,223 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:29:28,224 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [559151250] [2021-11-25 19:29:28,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:29:28,224 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:29:28,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:29:29,308 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 115 trivial. 0 not checked. [2021-11-25 19:29:29,308 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:29:29,308 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [559151250] [2021-11-25 19:29:29,308 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [559151250] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:29:29,309 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:29:29,309 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-25 19:29:29,309 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [235696945] [2021-11-25 19:29:29,309 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:29:29,310 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-25 19:29:29,310 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:29:29,310 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-25 19:29:29,310 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-25 19:29:29,311 INFO L87 Difference]: Start difference. First operand 46570 states and 66894 transitions. Second operand has 6 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (19), 3 states have call predecessors, (19), 2 states have call successors, (19) [2021-11-25 19:29:33,835 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:29:41,981 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:29:44,300 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.59s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:29:49,142 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:29:51,975 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:30:05,184 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:30:07,944 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:30:12,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:30:12,037 INFO L93 Difference]: Finished difference Result 60306 states and 86632 transitions. [2021-11-25 19:30:12,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-25 19:30:12,038 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (19), 3 states have call predecessors, (19), 2 states have call successors, (19) Word has length 121 [2021-11-25 19:30:12,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:30:12,271 INFO L225 Difference]: With dead ends: 60306 [2021-11-25 19:30:12,272 INFO L226 Difference]: Without dead ends: 60304 [2021-11-25 19:30:12,297 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-11-25 19:30:12,298 INFO L933 BasicCegarLoop]: 4539 mSDtfsCounter, 3609 mSDsluCounter, 17439 mSDsCounter, 0 mSdLazyCounter, 4447 mSolverCounterSat, 3 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 36.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3613 SdHoareTripleChecker+Valid, 19790 SdHoareTripleChecker+Invalid, 4453 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4447 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 40.1s IncrementalHoareTripleChecker+Time [2021-11-25 19:30:12,298 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3613 Valid, 19790 Invalid, 4453 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 4447 Invalid, 3 Unknown, 0 Unchecked, 40.1s Time] [2021-11-25 19:30:12,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60304 states. [2021-11-25 19:30:16,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60304 to 60062. [2021-11-25 19:30:16,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60062 states, 36034 states have (on average 1.2961647333074318) internal successors, (46706), 38056 states have internal predecessors, (46706), 19710 states have call successors, (19710), 4330 states have call predecessors, (19710), 4285 states have return successors, (19918), 18608 states have call predecessors, (19918), 19708 states have call successors, (19918) [2021-11-25 19:30:17,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60062 states to 60062 states and 86334 transitions. [2021-11-25 19:30:17,122 INFO L78 Accepts]: Start accepts. Automaton has 60062 states and 86334 transitions. Word has length 121 [2021-11-25 19:30:17,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:30:17,123 INFO L470 AbstractCegarLoop]: Abstraction has 60062 states and 86334 transitions. [2021-11-25 19:30:17,123 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (19), 3 states have call predecessors, (19), 2 states have call successors, (19) [2021-11-25 19:30:17,123 INFO L276 IsEmpty]: Start isEmpty. Operand 60062 states and 86334 transitions. [2021-11-25 19:30:17,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2021-11-25 19:30:17,125 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:30:17,126 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:30:17,126 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-11-25 19:30:17,126 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_linux_kernel_rcu_srcu_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2021-11-25 19:30:17,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:30:17,127 INFO L85 PathProgramCache]: Analyzing trace with hash 1298797885, now seen corresponding path program 1 times [2021-11-25 19:30:17,127 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:30:17,127 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [908409705] [2021-11-25 19:30:17,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:30:17,128 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:30:17,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:30:17,475 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-25 19:30:17,476 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:30:17,476 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [908409705] [2021-11-25 19:30:17,476 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [908409705] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:30:17,476 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:30:17,477 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 19:30:17,477 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [853179726] [2021-11-25 19:30:17,477 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:30:17,479 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 19:30:17,480 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:30:17,480 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 19:30:17,480 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 19:30:17,481 INFO L87 Difference]: Start difference. First operand 60062 states and 86334 transitions. Second operand has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-11-25 19:30:20,614 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:30:25,192 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.42s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:30:27,253 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:30:31,761 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:30:40,084 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.54s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:30:45,290 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:30:46,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:30:46,410 INFO L93 Difference]: Finished difference Result 60146 states and 86413 transitions. [2021-11-25 19:30:46,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-25 19:30:46,411 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 109 [2021-11-25 19:30:46,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:30:46,653 INFO L225 Difference]: With dead ends: 60146 [2021-11-25 19:30:46,653 INFO L226 Difference]: Without dead ends: 60144 [2021-11-25 19:30:46,678 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 19:30:46,679 INFO L933 BasicCegarLoop]: 4507 mSDtfsCounter, 3580 mSDsluCounter, 8899 mSDsCounter, 0 mSdLazyCounter, 1639 mSolverCounterSat, 1 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 24.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3582 SdHoareTripleChecker+Valid, 12335 SdHoareTripleChecker+Invalid, 1644 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1639 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 26.0s IncrementalHoareTripleChecker+Time [2021-11-25 19:30:46,680 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3582 Valid, 12335 Invalid, 1644 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1639 Invalid, 4 Unknown, 0 Unchecked, 26.0s Time] [2021-11-25 19:30:46,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60144 states. [2021-11-25 19:30:50,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60144 to 60068. [2021-11-25 19:30:50,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60068 states, 36037 states have (on average 1.2961400782529067) internal successors, (46709), 38059 states have internal predecessors, (46709), 19712 states have call successors, (19712), 4331 states have call predecessors, (19712), 4286 states have return successors, (19920), 18610 states have call predecessors, (19920), 19710 states have call successors, (19920) [2021-11-25 19:30:51,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60068 states to 60068 states and 86341 transitions. [2021-11-25 19:30:51,414 INFO L78 Accepts]: Start accepts. Automaton has 60068 states and 86341 transitions. Word has length 109 [2021-11-25 19:30:51,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:30:51,414 INFO L470 AbstractCegarLoop]: Abstraction has 60068 states and 86341 transitions. [2021-11-25 19:30:51,414 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-11-25 19:30:51,414 INFO L276 IsEmpty]: Start isEmpty. Operand 60068 states and 86341 transitions. [2021-11-25 19:30:51,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2021-11-25 19:30:51,419 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:30:51,419 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:30:51,419 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-11-25 19:30:51,420 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ldv_check_alloc_flagsErr1ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2021-11-25 19:30:51,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:30:51,420 INFO L85 PathProgramCache]: Analyzing trace with hash 1296141979, now seen corresponding path program 1 times [2021-11-25 19:30:51,421 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:30:51,421 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2106967465] [2021-11-25 19:30:51,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:30:51,421 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:30:51,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:30:51,839 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 115 trivial. 0 not checked. [2021-11-25 19:30:51,839 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:30:51,840 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2106967465] [2021-11-25 19:30:51,840 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2106967465] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:30:51,840 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:30:51,840 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 19:30:51,841 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2008065220] [2021-11-25 19:30:51,841 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:30:51,841 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 19:30:51,842 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:30:51,842 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 19:30:51,842 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 19:30:51,842 INFO L87 Difference]: Start difference. First operand 60068 states and 86341 transitions. Second operand has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-11-25 19:30:55,140 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:30:59,118 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:31:01,751 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:31:09,531 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:31:12,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:31:12,615 INFO L93 Difference]: Finished difference Result 121381 states and 174382 transitions. [2021-11-25 19:31:12,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 19:31:12,616 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 124 [2021-11-25 19:31:12,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:31:13,038 INFO L225 Difference]: With dead ends: 121381 [2021-11-25 19:31:13,038 INFO L226 Difference]: Without dead ends: 61331 [2021-11-25 19:31:13,543 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 19:31:13,544 INFO L933 BasicCegarLoop]: 4505 mSDtfsCounter, 3510 mSDsluCounter, 3823 mSDsCounter, 0 mSdLazyCounter, 1069 mSolverCounterSat, 0 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3514 SdHoareTripleChecker+Valid, 7826 SdHoareTripleChecker+Invalid, 1073 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1069 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.8s IncrementalHoareTripleChecker+Time [2021-11-25 19:31:13,544 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3514 Valid, 7826 Invalid, 1073 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1069 Invalid, 4 Unknown, 0 Unchecked, 16.8s Time] [2021-11-25 19:31:13,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61331 states. [2021-11-25 19:31:18,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61331 to 61118. [2021-11-25 19:31:18,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61118 states, 36659 states have (on average 1.2953708502686925) internal successors, (47487), 38717 states have internal predecessors, (47487), 19994 states have call successors, (19994), 4477 states have call predecessors, (19994), 4432 states have return successors, (20202), 18864 states have call predecessors, (20202), 19992 states have call successors, (20202)